[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.1"]
[White "Artemiev, Vladislav"]
[Black "Ivic, Velimir"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "2728"]
[BlackElo "2558"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,101,9,10,13,0,1,0,8,0,18,13,35,0,0,0,15,15,32,25,17,8,25,31,60,54,48,48,48,46,68,54,53,53,53,43,52,50,55,52,61,50,90,89,86,80,111,103,118,102,108,109,110,112,108,112,115,104,105,98,115,118,115,0,97,96,96,96,93,90,115,115,116,108,111,111,112,114,116,107,125,124,128,127,139,135,198,203,202,210,226,223]} 1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 O-O 5. e3 d6 6. Bc4 c5 7. c3 cxd4 {A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems.} 8. cxd4 Nc6 9. O-O h6 {The position is equal.} 10. Bh4 e5 11. dxe5 dxe5 {[#]} 12. Bxf6 $146 ({Predecessor:} 12. e4 g5 13. Bg3 Nh5 14. Re1 Nf4 15. h3 Qf6 16. Qb3 Na5 17. Qc3 Nxc4 18. Nxc4 {0-1 (40) Veresagin,J (2360)-Shmuter,L (2460) Volgograd 1994}) 12... Qxf6 13. Ne4 Qf5 14. Qa4 Bd7 15. Nd6 Qf6 16. Rad1 Rad8 {Hoping for ...Nd4.} 17. Qa3 e4 18. Nd2 Qxb2 19. Qxb2 Bxb2 20. Nxb7 Rb8 21. Nc5 Bg4 22. Rb1 Ne5 23. Bb3 Ba3 24. Ndxe4 Kg7 25. h3 Bf5 26. Rbd1 $36 {[%mdl 2048] White has some pressure.} Rfd8 27. g4 $1 {[%cal Rg4f5]} Bxe4 28. Nxe4 Be7 29. Rxd8 Rxd8 30. Rc1 Rd7 31. Kf1 Nd3 32. Rc8 Ba3 33. Rc3 {aiming for Ba4.} Bb4 34. Rc6 Ne5 35. Ra6 Nf3 36. Nf6 Rd8 37. Ne4 Rd7 38. Kg2 Ne1+ 39. Kg3 Nd3 40. Nf6 Rd8 41. Nd5 Bd6+ 42. Kg2 Bb8 43. Ra5 Ne1+ 44. Kf1 Nf3 45. Bd1 Nd2+ 46. Ke2 Ne4 {...Rxd5! is the strong threat.} 47. Bb3 Rd7 48. f3 {White is clearly better.} Nf6 {[#]} (48... Nd6 $16 {keeps fighting.} 49. Rc5 Nb7) 49. Nb4 $1 $18 Bd6 {[#]} 50. Nc6 $1 Rc7 51. Rxa7 {Accuracy: White = 97%, Black = 85%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.2"]
[White "Sivuk, Vitaly"]
[Black "Sargissian, Gabriel"]
[Result "1/2-1/2"]
[ECO "C89"]
[WhiteElo "2557"]
[BlackElo "2689"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,68,46,42,34,51,64,87,-20,29,18,0,0,0,0,14,18,25,21,22,4,4,10,8,7,8,6,8,8,22,0,18,13,11,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d3 Bd6 13. Re1 Qh4 14. g3 Qh3 15. Re4 Nf6 {[#] Hoping for ...Ng4. The modern move.} 16. Rh4 {C89: Closed Ruy Lopez: Marshall Attack.} Qf5 17. Nd2 $1 Ng4 {[#]} 18. Qf3 $146 (18. f3 $16 Ne3 19. Qe2) ({Predecessor:} 18. f3 Ne3 19. Qe2 Nd5 20. c4 Nc7 21. d4 Qg6 22. Qe4 Be6 23. Qxg6 hxg6 24. c5 {½-½ (32) Smeets,J (2593)-Hebden,M (2520) Liverpool 2008}) 18... Re8 (18... Be7 $5 {[%cal Re7h4]} 19. Rxg4 Qxg4 $11) 19. Qxf5 Bxf5 20. Ne4 Be7 21. Bg5 Ne5 {[#] And now ...Nf3+ would win.} 22. Bxe7 Rxe7 23. Rf4 Bg6 {The position is equal.} 24. Nc5 Nxd3 25. Nxd3 Bxd3 26. Rd1 Bg6 $1 27. Rd6 Kf8 28. h4 f6 29. g4 ({Reject} 29. Rxc6 Re1+ 30. Kg2 (30. Kh2 Be4 $17) 30... Be4+ 31. Rxe4 Rxe4 $15) 29... h6 30. Kh2 Re1 31. Rxc6 Be4 $1 {[%cal Re4c6]} 32. Rc7 {Threatens to win with Rxe4!} Rh1+ 33. Kg3 Rg1+ 34. Kh2 Rh1+ {Accuracy: White = 86%, Black = 94%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.3"]
[White "Maghsoodloo, Parham"]
[Black "Frolyanov, Dmitry"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "2674"]
[BlackElo "2556"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,83,18,9,14,12,26,15,18,15,30,18,47,35,55,45,47,30,29,43,29,36,33,35,25,35,29,22,59,58,54,83,50,38,129,85,69,79,444,313,367,183,204,163,398,395,535,526,523,508,517,510,489,408,394,389,392,355,572,564,670,663,650,660,656,652,769,772,1400,1325,1216,1193,5110,5110]} 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Nc3 c5 7. Nf3 Nf6 {D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+ Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6.} 8. Be2 $1 {[%mdl 4] scores much better than the old 8.a3.} O-O 9. O-O cxd4 {The position is equal.} 10. Nxd4 a6 {[#]} 11. Na4 $146 ({Predecessor:} 11. Be3 Qc7 12. Rc1 Nbd7 13. a3 Be7 14. g3 g6 15. c5 Rd8 16. Qc2 e5 17. Nf3 {1-0 (41) Zvjaginsev,V (2671)-Lupik,M (2197) St Petersburg 2012}) 11... Nbd7 12. a3 Be7 13. b4 $1 a5 14. Rb1 axb4 15. axb4 Ne5 16. Nc3 Bd7 17. Qb3 Qb8 18. f4 Ng6 19. Ncb5 Re8 20. c5 Bf8 21. Bc4 Kh8 22. h3 Qc8 ({Black should play} 22... Bc6 $14) 23. Nf3 Bxb5 24. Bxb5 {f5 is the strong threat.} Rd8 $2 {[%mdl 8192]} (24... Re7 $16 {is a better chance.}) 25. Ng5 Rd4 {[#] Hoping for ...Rxb4!} 26. Bc4 (26. Nxf7+ $142 Kg8 27. Be3) 26... Qc7 27. Be3 Rd7 $2 (27... Rxc4 {is a better defense.} 28. Qxc4 h6) 28. f5 $18 Nh4 29. fxe6 fxe6 30. Bxe6 Qg3 {[%csl Gh4][%cal Rg3g2]} 31. Rb2 Re7 32. Bf4 Qxb3 33. Bxb3 ({Resist} 33. Rxb3 h6 $18) 33... h6 34. Ne6 Rd7 $2 {[#]} (34... Ng6 {was necessary.} 35. Bxh6 gxh6) 35. Bxh6 $1 {[%mdl 576] Deflection. White is clearly winning.} gxh6 36. Rxf6 Bg7 37. Nxg7 Kxg7 38. Rbf2 Ra1+ 39. Kh2 Rb1 40. Rf7+ Rxf7 41. Rxf7+ Kg6 42. Bc2+ {Accuracy: White = 82%, Black = 46%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.4"]
[White "Chanda, Sandipan"]
[Black "Sjugirov, Sanan"]
[Result "1/2-1/2"]
[ECO "D97"]
[WhiteElo "2552"]
[BlackElo "2674"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,53,0,11,11,7,0,0,21,9,2,16,10,6,15,18,10,43,59,101,122,120,66,57,0,0,0,68,68,74,78,88,82,77,0,44,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 a6 8. Be2 b5 9. Qb3 c5 10. dxc5 Be6 11. Qc2 {D97: Grünfeld: Russian System: 7 e4, replies other than 7...Bg4.} Nbd7 {[%cal Bb8d7,Bd7c5,Bc5a4,Ba4c3][%mdl 32]} 12. Be3 Rc8 13. Rd1 {The position is equal.} b4 14. Nd5 Bxd5 $1 15. exd5 {aiming for c6.} Nxc5 16. O-O a5 17. Bc4 {[#]} Na4 $146 ({Predecessor:} 17... Nce4 18. Qe2 Qc7 19. Bb3 Ng4 20. Bd4 Ng5 21. g3 Nxf3+ 22. Qxf3 h5 23. h3 {½-½ (23) Zidu,J (2595)-Robson,N (2616) ICCF email 2016}) 18. d6 $1 $36 {[%mdl 2048] White has some pressure.} Nc3 {[#]} 19. Bxf7+ $1 Rxf7 20. bxc3 (20. d7 $1 $16 {[%cal Rd7c8]} Nxd7 21. bxc3) 20... Rxc3 $14 21. dxe7 (21. Qb2 $1 $14 exd6 22. Ng5) 21... Qxe7 $11 (21... Rxc2 $2 {too greedy.} 22. exd8=Q+ Rf8 23. Qxa5 $18) 22. Qa4 Qc7 (22... Ng4 $11) 23. Bd4 $14 Ra3 24. Qb5 {[#] Black must now prevent Ng5.} Qb7 ({Wrong is} 24... Rxa2 $2 25. Be5 $18) 25. Qc4 {Hoping for Ne5.} Qc7 26. Qb5 {Ng5 is the strong threat.} Qb7 $1 {[%cal Rb7b5]} ({But not} 26... Rxa2 $2 27. Be5 $18) 27. Qc4 {Accuracy: White = 71%, Black = 81%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.5"]
[White "Sarana, Alexey"]
[Black "Kunin, Vitaly"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "2656"]
[BlackElo "2550"]
[Annotator "TA"]
[PlyCount "135"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,135,39,52,54,56,31,31,24,37,23,29,24,30,22,40,37,44,33,37,42,42,41,40,42,38,32,30,28,34,28,34,27,42,44,52,38,40,40,65,65,69,56,68,57,72,66,61,68,71,45,78,88,85,87,81,83,139,128,121,120,189,189,189,148,189,189,189,189,189,189,349,334,335,337,348,335,336,333,306,284,438,409,391,325,617,553,791,813,806,668,1687,1534,1441,1511,2404,2333,2200,1818,29976,29977,29977,29978,29979,29980,29980,29982,29982,29983,29983,29984,29985,29986,29986,29987,29988,29989]} 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bd7 5. Nf3 Bc6 6. Bd3 Nd7 7. O-O Ngf6 8. Ng3 Be7 9. Re1 O-O 10. c3 Bxf3 11. Qxf3 c6 12. Bc2 {C10: French with 3 Nc3: Unusual Black 3rd moves and 3...dxe4.} Re8 13. Nf1 $5 {[%mdl 4] [#] A promising side line.} Qc7 $146 ({Predecessor:} 13... Nf8 14. Bf4 Qb6 15. Bb3 a5 16. Rab1 Ng6 17. Bg3 Red8 18. Ne3 a4 19. Bc2 Qa6 {½-½ (39) Alboredo,J (1885)-Garcia Contreras,C (1952) Montevideo 2014}) 14. Bd2 {White is slightly better.} Rad8 15. Rad1 Bd6 16. h3 e5 17. dxe5 Nxe5 18. Qf5 Ng6 19. Bg5 Rxe1 20. Rxe1 Re8 21. Rxe8+ Nxe8 22. h4 Nf8 23. Qe4 Qd7 24. Nd2 h6 25. Be3 Nf6 26. Qf5 Bb8 27. Nc4 b6 28. a4 Ng4 29. Bd2 Ne5 30. Nxe5 Bxe5 31. Be3 Bc7 32. h5 Ne6 33. g3 Kf8 34. Kf1 Ke7 35. Ke2 (35. Qf3 {keeps more tension.} Kf8 36. Be4 Nd8 37. Bf5 Ne6 38. Kg2) 35... Qd5 36. Qxd5 cxd5 $16 {[%mdl 4096] Endgame KBB-KBN} 37. b4 Bd6 38. Kd3 d4 (38... a5 $142) 39. Bd2 dxc3 40. Bxc3 f6 (40... g6 $16 41. hxg6 fxg6) 41. Ke4 $18 Nc7 {[#]} 42. Bd3 $1 a6 43. Bf1 b5 {[#]} 44. a5 $1 Kf7 45. Bh3 g6 $2 (45... Ke7 46. Bg4 Kf7) 46. hxg6+ Kxg6 47. Bf5+ Kf7 48. g4 Kg7 49. Bc8 Kg6 50. Bd2 Kg7 (50... Be7 {might work better.} 51. Bf4 Ne8 52. Bxa6 Bxb4 53. Bxb5 Nd6+ 54. Bxd6 Bxd6 55. Be8+ Kg7) 51. Kf5 Kf7 52. Bb7 Kg7 $2 (52... Be7 53. Bf4 Bd8 54. Bxh6 Be7) 53. Bf4 Bxf4 54. Kxf4 {KB-KN} Kf7 55. Kf5 Kg7 56. Ke4 Kf7 57. Kd4 f5 58. Kc5 fxg4 59. Kb6 Ne6 60. Kxa6 {White mates.} Ke7 61. Kb6 Kd6 62. a6 h5 63. a7 Nc7 64. a8=Q Nxa8+ 65. Bxa8 h4 66. Kxb5 g3 67. fxg3 hxg3 68. Bg2 {Accuracy: White = 96%, Black = 60%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.6"]
[White "Grigoriants, Sergey"]
[Black "Adhiban, B.."]
[Result "0-1"]
[ECO "C78"]
[WhiteElo "2539"]
[BlackElo "2654"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,70,21,9,22,24,34,23,36,29,40,25,25,14,10,8,52,45,60,27,41,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-39,-30,-52,-48,-52,-61,-54,-51,-45,-45,-183,-175,-167,-171,-515,-502,-679,-532,-5198,-4882,-29955,-5575]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. c3 b5 7. Bb3 d6 8. a4 {Threatens to win with axb5. The modern move.} Bb7 {C78: Ruy Lopez: Archangelsk and Möller Defences.} 9. d4 Bb6 10. Bg5 h6 {White has an edge.} 11. Bxf6 Qxf6 12. Bd5 O-O 13. dxe5 dxe5 14. Qe2 Rfb8 $5 {[%mdl 4] A promising side line.} 15. Nbd2 bxa4 16. Rxa4 {[#]} a5 $146 ({Predecessor:} 16... Ne7 17. Bxb7 Rxb7 18. Rfa1 a5 19. Nc4 Ng6 20. g3 Rba7 21. h4 Re8 22. Kg2 Nf8 {1-0 (40) Marczuk,D (1918)-Jajte Pachota,M (1685) Krakow 2011}) 17. Qc4 Nd8 {[%cal Bc6d8,Bd8b7,Bb7c5,Bc5d3][%mdl 32] White must now prevent ...c6.} 18. Bxb7 Nxb7 19. Qe2 Nc5 20. Raa1 Rd8 21. Nc4 Nd3 22. g3 Qe6 $1 {[%cal Re6c4]} 23. Nxb6 cxb6 24. Rad1 Nc5 $1 25. Nd2 (25. Rd5 $5) 25... Rd7 26. Nc4 Rad8 $36 {[%mdl 2048] Hoping for ...Rxd1. White is under pressure.} 27. Rxd7 Rxd7 28. h4 {[#]} h5 $1 {[%mdl 512]} 29. Ra1 (29. Qxh5 Qxc4) 29... g6 30. b4 (30. Ne3 $15) 30... axb4 $1 $19 31. cxb4 {[#]} Nb3 $1 {[%cal Rb3a1]} 32. Ra3 $2 (32. Ra8+ Kg7 33. Ne3) 32... Nd4 33. Qa2 Rc7 34. Ne3 {[#]} Qh3 $1 {[%cal Rd4f3]} ({Stronger than} 34... Rc1+ 35. Kg2 $11) 35. Nd1 Rc2 {Accuracy: White = 51%, Black = 92%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.7"]
[White "Kovalev, Vladislav"]
[Black "Asadli, Vugar"]
[Result "1-0"]
[ECO "A28"]
[WhiteElo "2650"]
[BlackElo "2538"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,67,11,20,-14,-13,-14,0,-8,0,0,0,0,33,12,18,0,23,9,4,11,0,0,0,0,14,-10,0,0,48,45,53,41,68,56,64,53,101,104,175,168,169,180,178,182,178,175,235,229,277,193,412,408,578,670,648,648,803,791]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 Be7 7. Nxe7+ $5 {[%mdl 4] Exploring less charted territory. A28: English Opening: Four Knights Variation.} (7. Bd3 {seems wilder.} h6 8. a3 d6 9. b4 a5 10. b5) 7... Qxe7 8. d3 d5 9. cxd5 {The position is equal.} Nxd5 10. a3 a5 11. Be2 {[#]} Nf6 $146 ({Predecessor:} 11... Bg4 12. O-O Rad8 13. b3 Rfe8 14. Bb2 Rd6 15. Rac1 Rg6 16. Kh1 Rd8 17. Rfd1 Nb6 {½-½ (66) Dragnev,V (2553)-Pogosyan,S (2459) Moscow 2019}) 12. O-O Bf5 13. e4 Bg4 14. Be3 Rfd8 15. Rac1 a4 16. h3 {aiming for Bc5.} Bxf3 17. Bxf3 Ne8 18. Bg4 Qd6 19. Rfd1 $36 {[%mdl 2048] White is more active.} Ra5 20. Qd2 {Hoping for Rxc6!} Ra6 21. Rc4 Qe7 22. Qc2 Rda8 23. f4 Ra5 24. d4 $1 {[%cal Rd4e5]} exd4 (24... exf4 $16 25. Bd2 (25. Bxf4 Nd6 $14) 25... R5a7) 25. Bxd4 $18 h5 {[#]} 26. Bf3 $1 Nd6 {[#]} 27. Rxc6 $1 bxc6 28. e5 ({Don't take} 28. Qxc6 $6 g6 $16) 28... Nb5 (28... Ne8 {was worth a try.} 29. Qc3 (29. Bxc6 Rd8 $16) 29... Rd5 30. Qxc6 (30. Bxd5 cxd5 31. Qc6 Rd8 $16) 30... Rdd8) 29. Bc5 ({Not} 29. Bxh5 Nxd4 30. Rxd4 Qc5 $15) 29... Qe6 30. Bxh5 Qb3 $2 (30... Re8 {was called for.} 31. Bf3 Raa8) 31. Qf2 Nd6 (31... Qe6 {keeps fighting.} 32. f5 Qh6) 32. exd6 {White is clearly winning.} cxd6 33. Rxd6 Qb5 {[#]} 34. Bxf7+ $1 {Accuracy: White = 89%, Black = 55%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.8"]
[White "Sindarov, Javokhir"]
[Black "Jumabayev, Rinat"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2537"]
[BlackElo "2646"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,51,0,0,0,0,0,0,0,0,0,0,0,0,0,0,15,-46,-48,-49,-51,-109,50,52,235,235,318,307,298,279,574,-23,620,613]} 1. e4 c5 2. Nc3 d6 3. Nge2 Nf6 4. d4 cxd4 5. Nxd4 a6 6. a3 e6 7. Bc4 Nc6 8. O-O Be7 9. Ba2 O-O 10. Be3 Nxd4 11. Bxd4 b5 {B88: Sicilian: Sozin Attack.} 12. f4 Bb7 13. Qd3 Rc8 {The position is equal.} 14. Rae1 Qc7 {[#]} 15. f5 $146 ({Predecessor:} 15. Kh1 Qb8 16. Qg3 Qa8 17. Re3 Rfd8 18. Rfe1 Nh5 19. Qg4 Nf6 20. Qh3 Bc6 21. Rg3 Qb7 22. Qh6 g6 23. f5 Bf8 24. Qh4 {1-0 (24) Zhigalko,A (2610)-Vafiadis,K (2292) Kavala 2016}) 15... e5 16. Bf2 d5 17. exd5 Rfd8 18. Bg3 (18. Re2 $11) 18... Nxd5 $15 19. Bxd5 Bxd5 20. Bxe5 (20. Nxd5 $15 Qc5+ {[%mdl 64] Double Attack} 21. Bf2 Qxd5 22. Qxd5 Rxd5 23. Re2) 20... Bc5+ $2 (20... Qc5+ $1 $17 21. Rf2 Bh4 $1 {[%mdl 576] Pin}) 21. Kh1 $14 Bxg2+ $2 ({Black should play} 21... Qc6 $1 $14 22. Nxd5 Rxd5) 22. Kxg2 $18 Rxd3 23. Bxc7 Rd2+ 24. Kh1 Rxc7 $2 (24... Rxc2 25. f6 Rxb2) 25. Re8+ Bf8 {[#]} 26. Ne4 $1 {Accuracy: White = 84%, Black = 55%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.9"]
[White "Rakhmanov, Aleksandr"]
[Black "Moroni, Luca Jr"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2645"]
[BlackElo "2536"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,105,18,22,19,13,17,17,17,20,14,10,15,19,12,16,15,21,10,11,11,11,13,12,10,21,21,24,17,20,21,31,29,29,29,30,25,27,27,33,17,36,26,34,18,22,11,31,15,16,0,0,0,16,0,57,62,48,66,87,87,87,87,87,108,108,108,162,8,87,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8]} 1. Nf3 Nf6 2. g3 d5 3. Bg2 c5 4. O-O Nc6 5. d4 e6 6. c4 dxc4 7. dxc5 Qxd1 8. Rxd1 Bxc5 9. Nbd2 c3 10. bxc3 O-O 11. Nb3 Be7 12. c4 Bd7 13. Bb2 {E04: Open Catalan: 5 Nf3.} Rfd8 14. Nfd4 Rac8 15. Nb5 b6 16. Nd6 Bxd6 17. Rxd6 Be8 18. Rxd8 Nxd8 19. Rc1 Bc6 20. c5 Bxg2 21. Kxg2 Nd7 {[%cal Rd7c5]} 22. cxb6 Rxc1 23. Bxc1 axb6 $11 {[%mdl 4096] Endgame KBN-KNN} 24. Kf3 Nc6 25. Ke3 Kf8 26. Nd4 {[#]} Nde5 $5 $146 {[%mdl 8] New and interesting.} ({Predecessor:} 26... Nxd4 27. Kxd4 Ke7 28. Kc4 Kd6 29. Kb5 Kc7 30. g4 Nf6 31. Be3 Nd7 32. h4 f5 {1-0 (39) Giri,A (2776)-So,W (2760) Bucharest 2019}) 27. Nxc6 Nxc6 $14 {KB-KN} 28. a4 Ke7 29. Kd3 Kd7 30. Bb2 f6 31. g4 Ne7 32. Ba3 Nd5 33. e3 Nc7 34. f4 Kc6 35. Bf8 g6 36. g5 fxg5 37. fxg5 b5 38. a5 e5 (38... Na6 $11) 39. Ke4 Ne6 40. Be7 b4 41. Bxb4 {[#] Hoping for h4.} Nxg5+ 42. Kxe5 Nf3+ 43. Kf4 Nxh2 44. e4 {Threatens to win with Bc3.} h5 {[#]} 45. Be7 $2 (45. e5 $1 $18 {[%cal Re5e6]} Ng4 46. e6) 45... Ng4 (45... Kb5 $11 {keeps the balance.}) 46. Bd8 (46. e5 $16 {And now e6 would win.} Nxe5 47. Kxe5) 46... Kb5 $11 {The position is equal.} 47. Kg5 Ne5 48. Bf6 Nd3 49. Kxg6 Nc5 50. e5 Nd7 51. a6 {a7 is the strong threat.} Nxe5+ 52. Bxe5 {Threatening mate with a7.} Kxa6 53. Kxh5 {Accuracy: White = 89%, Black = 92%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.10"]
[White "Sengupta, Deep"]
[Black "Abdusattorov, Nodirbek"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2534"]
[BlackElo "2644"]
[Annotator "TA"]
[PlyCount "111"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,111,-8,4,4,10,6,11,10,11,16,10,20,22,3,24,30,21,18,22,22,9,16,60,28,134,91,110,102,91,106,101,102,128,136,128,136,133,125,147,158,154,153,154,156,164,159,145,141,150,129,138,93,208,140,142,128,128,74,32,32,25,32,27,24,53,51,53,61,62,0,20,22,28,29,30,0,245,222,315,0,0,20,772,770,767,727,687,619,811,1452,1410,1239,1705,1815,1564,1278,5557,4537,6303,5623,4921,4914,29991,29992]} 1. d4 d5 2. Bf4 Nf6 3. e3 c5 4. Nc3 cxd4 5. exd4 a6 6. Nf3 {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack.} Bg4 {is more profitable than 6...Nc6 at the moment. Played by Aronian in November 2019.} 7. h3 Bxf3 8. Qxf3 {The position is equal.} e6 9. O-O-O Bd6 10. g4 Nc6 11. Kb1 {[#]} Rc8 $146 ({Predecessor:} 11... Bxf4 12. Qxf4 Rc8 13. h4 Qc7 14. Qf3 Na5 15. Bd3 Nc4 16. g5 Nxb2 17. gxf6 Nxd1 18. Nxd1 {0-1 (38) Nabaty,T (2657)-Jones,G (2654) London 2017}) 12. Bxd6 Qxd6 13. g5 $36 {[%mdl 2048] White has some pressure.} Nd7 14. h4 O-O 15. Rg1 f5 16. Qg3 Qc7 (16... f4 $1 $11 17. Qd3 Na5) 17. Bg2 Qxg3 18. fxg3 Nb6 19. Rge1 Rce8 20. Ne2 Re7 21. Nf4 Rfe8 22. b3 Kf8 23. Bf3 Nc8 24. g4 Nd6 25. g6 h6 26. Kb2 fxg4 27. Bxg4 Ne4 28. Re2 b5 29. c3 Kg8 30. a3 a5 (30... Nd8 $16) 31. b4 Nd8 32. Rde1 Nb7 33. Rxe4 (33. Bf3 $142) 33... dxe4 $16 34. Rxe4 Nd6 35. Bxe6+ Kh8 36. Re5 axb4 37. cxb4 Rf8 38. Nd3 Rf3 39. Kc2 (39. Bd5 $14 Rxe5 40. Nxe5) 39... Rf6 40. Bf7 Ra7 41. h5 Rxa3 42. Re7 Rf3 $2 (42... Ra8 $1 $11 {and Black stays safe.}) 43. Rd7 $18 {[#] Intending Rd8+ and mate.} Nxf7 (43... Ne8 {was necessary.}) 44. Ne5 $2 ({Only move:} 44. Rxf7 $18 Rf6 45. Rb7) 44... Rf2+ $11 45. Kb1 Kg8 $2 {[%mdl 8192]} (45... Rb3+ $11 46. Kc1 Rc3+ 47. Kb1 Rb3+ 48. Ka1 Ra3+ 49. Kb1 Rb3+) 46. gxf7+ $18 {[%mdl 4096] Endgame KRR-KRN} Kh7 47. Rd8 Rb3+ 48. Kc1 Rxf7 49. Nxf7 {[%csl Gf7][%cal Rd8h8] [#] KRN-KR} g5 50. Ne5 Kg7 51. Rd6 Rxb4 52. Kc2 Ra4 53. Kd3 Ra3+ 54. Ke4 b4 55. Rg6+ Kh7 56. Ng4 {Accuracy: White = 81%, Black = 59%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.11"]
[White "Mamedov, Rauf"]
[Black "Kozak, Adam"]
[Result "1-0"]
[ECO "C67"]
[WhiteElo "2643"]
[BlackElo "2523"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,120,18,23,0,0,0,5,-2,-3,0,0,7,-2,7,15,25,18,17,17,18,28,23,31,23,31,17,35,28,34,18,24,14,43,43,50,52,49,43,53,48,46,18,20,13,18,7,19,22,50,29,29,34,32,28,31,26,29,19,35,24,26,19,50,50,99,99,95,99,91,87,85,94,72,48,68,68,70,70,126,134,178,175,260,242,226,229,252,250,258,266,245,255,662,654,745,741,747,740,727,724,712,584,583,567,871,817,885,905,906,839,1278,1285,1135]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. a4 {C67: Ruy Lopez: Berlin Defence: 4 0-0 Nxe4.} Be7 7. Nc3 a6 8. Bf1 {[#]The position is equal.} e4 $1 {[%mdl 512]} 9. Nxe4 Nxe4 10. Rxe4 d5 11. Re1 O-O 12. d4 Bg4 13. c3 {[#]} Bd6 $146 ({Predecessor:} 13... Qd7 14. h3 Bh5 15. Ne5 Nxe5 16. Qxh5 Ng6 17. Bd3 Rfe8 18. Bd2 Bd6 19. g3 c6 {½-½ (72) Lin,C (2526)-Fang,Y (2502) China 2016}) 14. h3 Bf5 15. a5 Rb8 16. b4 Re8 17. Be3 Ne7 18. Ne5 Ng6 19. Qh5 Nxe5 20. Qxf5 Qd7 (20... g6 $5 {[%cal Rg6f5]} 21. Qc2 Nd7 $14) 21. Qxd7 Nxd7 22. b5 axb5 23. Bxb5 c6 24. Bd3 Ra8 25. a6 bxa6 26. Bxa6 Reb8 27. Bd3 Rxa1 28. Rxa1 h6 29. Ra7 Nb6 $1 30. Ra6 Kf8 31. g4 Ke8 32. h4 Bc7 33. Ra7 Bd6 34. Bf5 Kf8 35. Ra6 Ke8 36. h5 Kd8 37. Ra7 Ke8 38. Kg2 Kf8 39. Ra6 Rb7 40. Kf3 f6 41. Ra2 Ke7 42. Rb2 Kd8 43. Bf4 Bxf4 (43... Bc7 $14) 44. Kxf4 $14 {[%mdl 4096] Endgame KRB-KRN} Rb8 45. Rb1 Ke7 (45... Kc7 $142 46. Bd3 Re8) 46. Re1+ $1 $18 Kf8 {[#]} 47. Ra1 $1 Rb7 48. Rb1 Rb8 49. Be6 Ke7 {[#]} 50. Kf5 $1 Kd6 $2 (50... Nd7 51. Re1 Nf8) 51. Bf7 {White is clearly winning.} Ke7 52. Kg6 Kf8 53. Be6 Ke7 54. Bf5 Kf8 55. Rb2 Kg8 56. Be6+ Kf8 57. f4 Ke7 58. f5 Kf8 59. Rb1 Rb7 {[#]} 60. Bd7 $1 {[%mdl 512]} Rxd7 {Accuracy: White = 96%, Black = 69%.} (60... Nxd7 61. Rxb7) 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.12"]
[White "Sadhwani, Raunak"]
[Black "Sethuraman, S.P."]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "2522"]
[BlackElo "2641"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,86,14,25,7,16,9,5,4,9,0,14,10,15,6,25,0,0,0,32,22,29,18,27,43,42,31,33,29,22,39,31,34,68,64,117,82,93,102,129,83,114,100,103,56,50,31,130,88,218,135,143,141,245,141,166,140,391,131,106,34,45,0,0,0,0,0,0,0,0,0,-15,-462,-462,-462,-459,-29937,-6279,-5828,-5385]} 1. Nf3 c5 2. c4 Nf6 3. Nc3 d5 4. cxd5 Nxd5 5. e3 e6 6. Bc4 {A17: English Opening: 1...Nf6 with ...Bb4.} Nc6 7. O-O Be7 8. Qe2 {The position is equal.} O-O 9. Rd1 {[#]} Nxc3 $5 $146 {[%mdl 8] An interesting novelty.} ({Predecessor:} 9... b6 10. d4 Nxc3 11. bxc3 Qc7 12. e4 Rd8 13. Be3 Na5 14. Bd3 Bb7 15. h4 b5 16. Bxb5 Bxe4 17. dxc5 Bxf3 18. Qxf3 Bxc5 {1-0 (63) Grischuk,A (2764)-Vachier Lagrave,M (2777) Hamburg 2019}) 10. dxc3 Qc7 11. e4 Bd6 12. Rd3 a6 {next ...b5 is good for Black.} 13. a4 f6 14. Be3 Na5 15. Rd2 b5 16. Ba2 c4 17. Rad1 Be7 18. e5 f5 $1 19. Bg5 Bxg5 20. Nxg5 h6 21. Nh3 bxa4 (21... Nb7 $14) 22. Nf4 $16 Rb8 23. h4 {[%mdl 1024] White has strong compensation.} Re8 24. h5 Rb5 25. Rd6 Nb3 26. Bb1 Na5 $1 27. Ng6 Nb7 ({Black should play} 27... Bb7 $1 $14) 28. R6d2 Na5 (28... Kh7 $16) 29. Kh2 Nb3 30. Rd6 Nc5 (30... Na5 $16) 31. Ba2 (31. Qxc4 $18 Rxb2 32. Bxf5) 31... Ne4 32. R6d4 $1 (32. Bxc4 Rxe5 33. Nxe5 Nxd6 $11) 32... Qb6 $2 {[%mdl 8192]} (32... Nc5 $16 33. Bxc4 Rb8) 33. Qxc4 $2 (33. Bxc4 $18 {and the rest is easy. Threatens to win with Qd3.} Rc5 34. Qd3) 33... Nxf2 {[#]} 34. Ne7+ (34. R1d2 $1 $16 {[%cal Rd2f2]} Ne4 {[#]} 35. Ne7+ $1 {[%mdl 512]} Kf8 36. Nxc8 Nxd2 37. Rxd2 (37. Nxb6 Nxc4 38. Nxc4 Rd5 $16)) 34... Kh7 $1 $14 ({Don't go for} 34... Rxe7 $2 35. Qxc8+ Kf7 36. R1d2 $18) 35. Nxc8 Qb8 $36 {[%mdl 2112] Double Attack. Black fights for an advantage.} 36. Nd6 $1 {And now R1d2 would win.} ({Avoid the trap} 36. Re1 $2 Rxe5 37. Rxe5 Qxe5+ 38. Kg1 Qe3 $19) 36... Nxd1 37. Rxd1 Rxe5 {[%cal Bb5e5,Be5e4,Be4h4][%mdl 32] Strongly threatening ...Rd8.} 38. Qf4 ({But not} 38. Qxa4 Rd8 $15) 38... Re4 $1 {[%cal Re4f4][%mdl 64] Pin} 39. Qf2 {Hoping for Kg1.} Rd8 40. Bxe6 $2 {[%mdl 8192]} (40. Qc5 $1 $11) 40... Rxd6 $19 41. Bxf5+ Kg8 42. Qg3 {[#]} (42. Kh3 $19 Rxd1 43. Bxe4) 42... Rh4+ $1 {[%mdl 576] Double Attack} 43. Bh3 {[#]} (43. Qxh4 Rxd1+) 43... Rxh3+ $1 {[%mdl 576] Remove Defender. Accuracy: White = 55%, Black = 69%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.13"]
[White "Riazantsev, Alexander"]
[Black "Iljiushenok, Ilia"]
[Result "1/2-1/2"]
[ECO "E73"]
[WhiteElo "2639"]
[BlackElo "2519"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,119,42,52,68,68,64,71,66,62,57,46,56,37,29,40,16,11,0,0,-56,-50,-43,0,0,33,35,29,33,128,117,137,128,132,-6,325,322,376,31,32,8,8,8,8,8,8,8,8,6,8,8,22,8,8,8,40,8,8,8,8,8,6,7,32,32,32,30,30,30,30,22,22,20,22,22,22,22,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,22,22,22,22,22,22,22,22,22,22,22,22,0,22,22,22,22]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Be3 e5 7. d5 Na6 8. g4 {E73: King's Indian: Averbakh Variation without 6...c5.} Nc5 9. f3 h5 10. g5 {White is better.} Nh7 11. h4 f6 12. Qd2 fxg5 13. hxg5 Rf4 $1 14. b4 Na6 {[#]} 15. a3 $146 ({Predecessor:} 15. Rb1 Nxg5 16. c5 Nb8 17. c6 a6 18. a4 Nf7 19. Bxf4 exf4 20. b5 axb5 21. axb5 {0-1 (59) Sakaev,K (2596)-Shimanov,A (2587) Khanty-Mansiysk 2019}) 15... Nxg5 16. c5 ({Better is} 16. Rc1 $11) 16... dxc5 $15 17. bxc5 Qf8 18. d6 $36 {[%mdl 2048] White has the initiative.} cxd6 19. cxd6 {d7 is the strong threat.} Be6 20. Nd5 {[%mdl 64] aiming for Rb1. Pin} Rd8 ({Black should play} 20... Nxf3+ $14 21. Nxf3 Rxf3) 21. Rd1 $1 $16 ({Much less strong is} 21. Bxf4 exf4 22. Rd1 Rxd6 $14) 21... Nxf3+ 22. Nxf3 Rxf3 23. Rg1 (23. Bg5 $1 $16 {[%cal Rg5d8]} Rd7 24. Ne7+ {[%mdl 64] Double Attack} Kh7 25. Nxg6 Kxg6 26. Be7) 23... Bg4 $2 {[%mdl 8192] [#]} (23... Kh7 $11 {and Black is okay.}) 24. Bg5 $1 $18 {[%cal Rg5d8]} Rd7 {[#]} ({Much worse is} 24... Rxd6 25. Be7) 25. Ne7+ $2 (25. Be7 $1 $18 {[%cal Re7f8]} Qf7 26. Ne3) 25... Kh7 $14 26. Rxg4 hxg4 27. Bxf3 Qxf3 {[%mdl 64] Double Attack} 28. Qh2+ Qh3 29. Qxh3+ gxh3 30. Rd3 Bh8 $1 31. Rxh3+ Kg7 32. Nd5 Rxd6 33. Be7 Re6 (33... Rc6 {keeps more tension.} 34. Bf6+ Rxf6 35. Nxf6 Kxf6 36. Rxh8 Nc5) 34. Bf6+ (34. Rb3 {looks sharper.} b6 35. Rf3 g5 36. Bf8+ Kg6 37. Ne7+) 34... Rxf6 35. Nxf6 Kxf6 36. Rxh8 $11 {[%mdl 4096] Endgame White wants to play Ra8. KR-KN} Nc5 37. Rh7 a5 38. Rc7 Nxe4 39. Rxb7 {Black must now prevent Rb5.} Nd6 $1 {[%cal Rd6b7]} 40. Rb6 Ke7 $1 41. a4 Kd7 42. Ra6 Nb7 43. Ke2 g5 44. Ke3 g4 45. Kf2 Nc5 46. Rxa5 Kc6 47. Kg3 Ne4+ 48. Kxg4 Nc3 49. Kf5 Kb6 50. Ra8 Kb7 51. Rg8 Nxa4 52. Kxe5 Kc6 {The position is equal.} 53. Rc8+ Kb5 54. Kd4 Nb6 55. Rc1 Nd7 56. Rc2 Nb6 57. Rc7 Na4 58. Rc2 Nb6 59. Rc5+ Kb4 60. Rc6 {Accuracy: White = 85%, Black = 79%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.14"]
[White "Stupak, Kirill"]
[Black "Narayanan.S.L"]
[Result "1/2-1/2"]
[ECO "A49"]
[WhiteElo "2518"]
[BlackElo "2637"]
[Annotator "TA"]
[PlyCount "43"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,43,31,12,22,0,7,0,0,-33,-18,-17,0,0,6,-14,-14,-18,-6,-20,11,14,15,16,22,14,20,35,12,0,0,0,19,0,0,0]} 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 d5 5. O-O c6 6. c4 dxc4 {D73: Fianchetto Grünfeld: 5 Nf3 .} 7. a4 Ne4 8. Qc2 Nd6 $1 9. Ne5 {[#]} O-O $146 ({Predecessor:} 9... Be6 10. Na3 Na6 11. Bd2 f6 12. Nexc4 Nxc4 13. Nxc4 Qxd4 14. Na5 Qc5 15. Rfc1 Qxc2 16. Rxc2 {1-0 (31) Karl,H (2298)-Valencak,S Baden 2000}) 10. Rd1 a5 11. Na3 Na6 12. Bd2 Be6 13. e3 c5 14. Nexc4 Nxc4 15. Nxc4 cxd4 16. Bxa5 (16. Bxb7 $2 d3 $19) 16... Qc8 17. Rac1 dxe3 $1 18. fxe3 ({But not} 18. Nxe3 Qxc2 19. Rxc2 Bb3 $17) 18... Qc5 19. Bb6 {The position is equal.} Qb4 20. Ba5 Qc5 {...Bxc4 is the strong threat.} 21. Bb6 Qb4 {[#] And now ...Bxc4 would win.} 22. Ba5 {Accuracy: White = 93%, Black = 93%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.15"]
[White "Aravindh, Chithambaram VR."]
[Black "Visakh N R"]
[Result "0-1"]
[ECO "C92"]
[WhiteElo "2630"]
[BlackElo "2518"]
[Annotator "TA"]
[PlyCount "115"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 33,115,0,0,6,20,16,9,0,0,0,15,-78,-87,-165,-170,-154,-158,-110,-54,-77,-13,-17,-18,-12,-15,-10,-8,-6,9,-176,-178,-172,-68,-72,-72,-72,-63,-65,-65,-156,-162,-163,-165,-165,-165,-153,-141,-125,-125,-125,-121,-125,-125,-230,-218,-290,-290,-290,-289,-261,-261,-290,-228,-29971,-29973,-29972,-29974,-29974,-29975,-29975,-29975,-29977,-29978,-29978,-29979,-29981,-29982,-29982,-29983,-29983,-29984,-29984,-29985,-29985]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Bb7 10. d4 Re8 11. Nbd2 Bf8 12. a4 h6 13. Bc2 exd4 14. cxd4 Nb4 15. Bb1 c5 16. d5 Nd7 17. Ra3 c4 18. Ree3 {C92: Closed Ruy Lopez: 9...Be6, Karpov and Flohr-Zaitsev Variations.} Nc5 19. b3 c3 20. Rxc3 {The position is equal.} f5 $1 {[%cal Rf5e4]} 21. axb5 fxe4 {[#]} 22. Nd4 $146 (22. Rc4 $11 {remains equal.} Nxd5 23. bxa6 Rxa6 24. Nxe4) ({Predecessor:} 22. Rc4 exf3 23. Rxb4 fxg2 24. Nf3 Qd7 25. bxa6 Bxa6 26. Rxa6 Nxa6 27. Rg4 Nc5 28. Qc2 g5 29. Kxg2 Re7 30. Qg6+ Rg7 31. Qxh6 Ra1 32. Bg6 {1-0 (32) Gates,R (2230)-Janosi,E (2203) LSS email 2009}) 22... Qf6 $1 $17 {[%cal Rf6d4]} 23. Nxe4 (23. Ne2 $17) 23... Nxe4 $19 24. Rf3 Qe5 {And now ...Nf6 would win.} 25. bxa6 Bxd5 (25... Bxa6 $17 26. Re3 Qxd5) 26. Ra5 $15 Nc5 (26... Rxa6 $17 27. Rxa6 Nxa6) 27. Re3 $11 Qf6 28. a7 Be4 29. Bxe4 Nxe4 (29... Rxe4 $6 30. Nc2 $16) 30. f3 $1 {[%cal Rf3e4]} Re5 31. Rxe5 $2 (31. Ra4 $11 {and White has nothing to worry.} d5 32. fxe4) 31... dxe5 $19 32. Nc2 Rd8 (32... Qb6 $1 $19 {...Nc3 is the strong threat.} 33. fxe4 (33. Nxb4 $2 Nc3 $17) 33... Rd8) 33. Qe2 Qc6 {White must now prevent ...Nf6.} 34. Rxe4 {[%mdl 64] Double Attack} Qxc2 35. Qxc2 Nxc2 36. Rxe5 (36. Rc4 $15 Nd4 37. Be3) 36... Ra8 $1 $17 37. Re2 Bc5+ {[%mdl 64] Double Attack} 38. Kf1 Nd4 39. Ra2 Rxa7 (39... Bxa7 40. Ra4 $11) 40. Rxa7 Bxa7 41. Be3 Kf7 42. g4 Ke6 43. f4 (43. h4 $17) 43... Kd5 $1 $19 44. f5 Bc5 45. f6 {[#]} g5 $1 ({Don't take} 45... gxf6 46. Bxh6 Nf3 47. Bg7 $17) 46. h4 {[#]} Ne6 $1 ({Weaker is} 46... Nxb3 47. hxg5 hxg5 48. Bxg5 $11) ({Not} 46... gxh4 47. Kg2 $15) 47. hxg5 hxg5 48. Ke2 $2 (48. Bd2 $19) 48... Bxe3 {Black mates.} 49. Kxe3 {[%mdl 4096] Endgame KN-K3P} Nd8 50. b4 Nf7 51. b5 Ne5 52. Kd2 Ke6 53. Kc3 Nxg4 54. b6 Nxf6 55. b7 Nd7 56. Kd4 Nb8 57. Ke4 Nc6 58. Kf3 {Accuracy: White = 65%, Black = 87%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.16"]
[White "Kulaots, Kaido"]
[Black "Martirosyan, Haik M."]
[Result "1/2-1/2"]
[ECO "C65"]
[WhiteElo "2510"]
[BlackElo "2630"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,69,47,36,40,33,39,30,30,21,35,38,32,33,45,25,33,34,36,5,3,0,0,-9,-2,-29,0,0,0,0,0,0,0,-3,45,54,58,9,9,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. O-O Bd7 6. Re1 Be7 7. c3 O-O 8. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1e3][%mdl 32]} Re8 {C66: Ruy Lopez: Steinitz Defence.} 9. Nf1 Bf8 10. Bg5 h6 {White has an edge.} 11. Bh4 g6 12. a4 {[%cal Ba2a4,Ba4a5,Ba5a6][%mdl 32]} Bg7 13. Ne3 Qc8 14. a5 {[#]} Nd8 $146 ({Predecessor:} 14... a6 15. Bc4 Nd8 16. b4 Ne6 17. Qb3 Bb5 18. Bxf6 Bxf6 19. g3 Bxc4 20. Qxc4 Qd7 {½-½ (41) Topalov,V (2772)-Aronian,L (2815) Stavanger 2014}) 15. Bc4 Be6 16. a6 b6 17. Nd2 Qd7 18. f3 c6 19. Bb3 (19. Nc2 {feels hotter.} Bxc4 20. Nxc4 Ne6 21. N4e3 Nf4 22. d4) 19... Bxb3 20. Nxb3 d5 21. Bxf6 Bxf6 22. exd5 $1 cxd5 23. d4 exd4 24. Nxd4 Bg5 25. Qd3 Nc6 {The position is equal.} 26. Nxc6 {[#] aiming for Nb4.} Bxe3+ 27. Rxe3 Qxc6 28. Rae1 b5 29. Rxe8+ Rxe8 30. Rxe8+ Qxe8 $11 {KQ-KQ} 31. Kf2 Qc6 32. Qd4 Qxa6 33. Qxd5 Qb6+ 34. Kg3 a5 35. Qe5 {Accuracy: White = 88%, Black = 92%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.17"]
[White "Paravyan, David"]
[Black "Lobanov, Sergei"]
[Result "1/2-1/2"]
[ECO "A20"]
[WhiteElo "2629"]
[BlackElo "2507"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,83,0,27,27,30,19,25,0,0,0,0,0,14,-16,0,0,0,-19,-8,-29,-14,-22,20,20,15,6,20,9,22,0,0,0,0,0,12,6,12,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 e5 2. g3 Nf6 3. Bg2 c6 4. d4 exd4 5. Qxd4 d5 6. Nf3 Be7 7. cxd5 cxd5 8. O-O {A20: English Opening: 1...e5.} Nc6 9. Qd1 O-O 10. Be3 {White has an edge. is the legacy move (10.Nbd2).} Bg4 11. Nd4 Qd7 12. Nc3 Rfe8 {[#]} 13. Qd3 $146 ({Predecessor:} 13. Nb3 Rad8 14. Bd4 Bh3 15. e3 Bxg2 16. Kxg2 Ne4 17. Rc1 Bf8 18. h4 {0-1 (43) Bakri,A (2254)-Soon,W (2046) Singapore 2006}) 13... Rad8 14. Rac1 Bh3 15. Nxc6 bxc6 16. Bd4 Bxg2 17. Kxg2 {The position is equal.} c5 18. Bxf6 $1 Bxf6 19. Rfd1 {[%cal Rd3d5]} Bxc3 20. Rxc3 Qe7 21. Rd2 d4 22. Rc4 Rd5 {[#]} 23. e4 $1 {[%mdl 512]} Re5 {[#]} (23... Qxe4+ 24. Qxe4) 24. b4 $1 {[%mdl 512]} cxb4 25. Qxd4 (25. Rxd4 {keeps more tension.} g5 26. Rd7 Qe6 27. Rd6 Qe7 28. Qf3) 25... h6 {[%cal Re5e4]} 26. Rxb4 Rxe4 27. Qxe4 Qxe4+ 28. Rxe4 Rxe4 $11 {[%mdl 4096] Endgame KR-KR} 29. Rd8+ Kh7 30. Rd7 Ra4 31. Rxf7 Rxa2 32. g4 h5 33. gxh5 Ra5 34. Kg3 a6 35. Ra7 Rg5+ 36. Kh4 (36. Kf3 {seems wilder.} Rxh5 37. Rxa6 Rxh2) 36... Rf5 37. h6 Rxf2 38. Kg3 Rf6 39. hxg7 Rg6+ {[%mdl 64] Double Attack} 40. Kf4 Rxg7 41. Rxa6 Rg2 42. Kf3 {Accuracy: White = 93%, Black = 96%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.18"]
[White "Nesterov, Arseniy"]
[Black "Shtembuliak, Evgeny"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2501"]
[BlackElo "2628"]
[Annotator "TA"]
[PlyCount "109"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,109,32,10,19,19,20,20,43,0,0,0,0,0,0,0,0,-13,-13,-23,-23,-16,-14,-20,0,-22,-20,-62,-16,-22,-22,-22,-21,-21,-27,-20,-12,-13,-12,-14,0,0,0,0,0,0,0,-12,0,0,0,0,270,265,181,195,379,370,425,425,425,433,310,304,554,545,508,500,452,447,679,677,646,513,5581,2734,8550,8340,29966,7512,5601,2868,29974,29975,29976,29977,29977,29977,29973,29974,29974,29973]} 1. d4 g6 2. e4 Bg7 3. Nf3 d6 4. Bc4 c6 5. Nc3 Nf6 6. Bb3 O-O 7. O-O Bg4 8. h3 Bxf3 9. Qxf3 Nbd7 10. Be3 Qc7 11. Rad1 b5 {B08: Pirc Defence: Classical System.} 12. Rfe1 a5 {[#] Hoping for ...a4.} 13. a3 b4 {The position is equal.} 14. axb4 axb4 15. Nb1 {[%cal Bc3b1,Bb1d2,Bd2c4][%mdl 32] [#]} c5 $146 {And now ...c4 would win.} ({Predecessor:} 15... e6 16. Nd2 c5 17. dxc5 Nxc5 18. Bxc5 Qxc5 19. Nc4 d5 20. exd5 Nxd5 21. Ne5 Rad8 {1-0 (29) Salai,L (2424)-Karlik,V (2285) Tatranske Zruby 2000}) 16. Nd2 cxd4 17. Bxd4 Ne5 $36 {[%mdl 2048] White is under pressure.} 18. Bxe5 (18. Qe3 {keeps more tension.} Nc6 19. Nf3 Nxd4 20. Rxd4 Nd7 21. Rxb4 Rab8 22. c3) 18... dxe5 19. Nc4 Rad8 20. Qe3 e6 21. Rd2 h5 22. Red1 Rxd2 23. Qxd2 Rb8 24. Qd6 Qxd6 25. Nxd6 Bf8 {[#] Threatens to win with ...Rd8.} 26. Nc4 $1 Nxe4 27. Nxe5 Rb5 28. Nd3 h4 29. Ba4 Rd5 30. Bc6 Rd4 31. Bxe4 Rxe4 $11 {[%mdl 4096] Endgame KRB-KRN} 32. Kf1 Rc4 33. Ne1 Be7 34. Rd7 Bf6 35. b3 Re4 $2 {[%mdl 8192] Black is now going downhill.} (35... Rc6 $11 {and Black has nothing to worry.}) 36. Nd3 $18 Kf8 37. f3 Re3 $2 (37... Ke8) 38. Kf2 Ke8 39. Kxe3 Kxd7 40. Nxb4 {KB-KN} Kd6 41. c4 Bc3 $2 (41... Bd8 42. Kd3 f5) 42. Nc2 Kc5 43. Kd3 Ba5 44. f4 Bc7 (44... Bd8 $142 45. b4+ Kd6) 45. b4+ Kb6 46. Ke3 e5 (46... Kb7 $142 47. Nd4 Bb6) 47. fxe5 Bxe5 48. Nd4 Bg3 49. c5+ (49. Ke4 $142 Kc7 50. Kd5 Bf2 51. Nb5+ Kb8 52. Nd6 f5 53. c5 Be3 54. b5) 49... Ka6 50. Kd3 f5 51. b5+ {White mates.} Kb7 52. Kc4 Bf2 53. Kd5 f4 54. Ne6 Be3 55. Ke4 {Accuracy: White = 97%, Black = 57%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.19"]
[White "Deac, Bogdan-Daniel"]
[Black "Zanan, Evgeny"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2626"]
[BlackElo "2500"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,120,22,28,18,23,28,8,13,0,7,37,21,19,-7,15,10,21,11,23,26,23,12,29,-16,12,4,4,0,17,14,48,42,43,28,57,37,50,59,69,51,43,41,43,4,54,0,99,89,288,114,88,96,94,42,36,53,35,25,110,114,126,87,102,51,245,221,202,64,92,40,42,40,27,27,41,24,36,24,27,28,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. Bb2 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} a5 7. b5 a4 8. c4 c6 9. Ba3 Re8 10. Bd3 Nbd7 11. cxd5 (11. bxc6 {is more complex.} bxc6 12. O-O e5 13. dxe5 Nxe5 14. Nxe5 Rxe5 15. Rc1) 11... cxd5 12. O-O e5 13. dxe5 Nxe5 14. Nxe5 Rxe5 {[#]} 15. Rc1 $146 ({Predecessor:} 15. Nf3 Bg4 16. Bb2 Rh5 17. h3 Be6 18. a3 g5 19. Nd4 Rh6 20. Nf5 Bxf5 21. Bxf5 {1-0 (39) Kreiter,T (1962)-Recker,M (1912) Gerlingen 2011}) 15... Re8 16. Qc2 Ng4 17. Nf3 Ne5 18. Nd4 Nxd3 19. Qxd3 Be6 20. Rc5 Rc8 21. Rxc8 Qxc8 22. Rc1 Qd7 23. Qd1 Ra8 24. b6 {Threatens to win with Rc7.} Be5 25. f4 Bd6 26. Qd3 Re8 27. Bb2 (27. Bxd6 $14 Qxd6 28. Qb5) 27... f6 (27... Rc8 $1 $11) 28. Nb5 $1 $36 {[%mdl 2048] White is really pushing.} Bf8 $2 {[#]} (28... Be7 $16 {was called for.}) 29. Nc7 $2 ({Not} 29. Bxf6 Bf5 $11) (29. Rc7 $1 $18 {[%cal Rc7d7] is the precise move to win.} Bf5 30. Qd4) 29... Rc8 30. Bxf6 d4 31. a3 ({Of course not} 31. Qxd4 $6 Qxd4 32. Bxd4 Bxa2 $11) ({Better is} 31. exd4 $16 Bxa2 32. Be5) 31... dxe3 $14 32. Qxe3 Bb3 33. Bb2 Bg7 (33... Rd8 $1 $11 {keeps the balance.}) 34. Bxg7 $16 Kxg7 35. Re1 Rd8 36. Kh1 (36. h3 $16) 36... Rf8 $2 (36... Kg8 $14) 37. h3 Kg8 38. Qe5 (38. Qe4 $18) 38... Qf5 $14 {[#]} 39. Re4 ({White should play} 39. Qxf5 $1 $16 Rxf5 40. Re8+ Rf8 41. Kg1) 39... Qxe5 40. fxe5 {[%mdl 4096] Endgame KRB-KRN} Rf1+ $1 41. Kh2 {Black must now prevent e6.} Kf7 42. e6+ Ke7 43. Rh4 h5 44. Rd4 Rd1 45. Rxd1 {The position is equal.} Bxd1 $11 {KB-KN} 46. Kg3 g5 47. h4 gxh4+ 48. Kxh4 {Strongly threatening Kg5.} Kf6 49. Kg3 Bb3 50. Kf4 Bc4 51. g3 Bb3 52. Na6 Kxe6 53. Nc5+ Kd5 54. Nxb7 {Hoping for Ke3.} Kc6 {[%mdl 64] Double Attack} 55. Nc5 Kxb6 56. Nd3 Kb5 57. Kg5 Kc4 58. Nb2+ Kc3 {[#]} 59. Nxa4+ $1 {[%mdl 512]} Bxa4 60. Kxh5 Kb2 {Accuracy: White = 74%, Black = 75%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.20"]
[White "Karthik Venkataraman"]
[Black "Durarbayli, Vasif"]
[Result "0-1"]
[ECO "C88"]
[WhiteElo "2483"]
[BlackElo "2625"]
[Annotator "TA"]
[PlyCount "144"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,144,18,18,13,20,16,12,13,11,8,16,0,0,-56,-60,-76,-64,-54,-54,-122,-131,-164,-150,-154,-147,-147,-135,-135,-135,-171,-166,-172,-135,-144,-144,-144,-138,-158,-109,-190,-190,-189,-189,-175,-144,-152,-139,-139,-138,-150,-102,-102,-92,-166,-143,-143,-139,-166,-143,-228,-177,-170,-160,-153,-139,-139,-139,-139,-139,-207,-120,-325,-316,-319,-272,-336,-335,-337,-335,-326,-315,-294,-268,-326,-326,-468,-466,-459,-452,-451,-343,-960,-982,-995,-993,-646,-486,-982,-868,-818,-784,-1091,-982,-1919,-712,-2230,-2347,-2227,-2309,-1926,-1956,-4786,-4775,-4800,-4789,-3811,-2740,-4779,-4779,-29988,-29989]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a4 Bb7 9. d3 d6 10. Nbd2 Nd7 11. c3 Nc5 12. axb5 axb5 13. Rxa8 Qxa8 $1 {13...Qxa8 is better than 13...Bxa8.} 14. Bc2 {C88: Closed Ruy Lopez: Anti-Marshall Systems.} b4 15. d4 bxc3 16. bxc3 {The position is equal.} Nd7 17. Nc4 Qa1 18. Bb3 Bf6 19. Bg5 (19. Be3 $11 Qxd1 20. Bxd1 (20. Rxd1 Ra8 $11)) 19... Qxd1 $1 $15 20. Rxd1 {[#]} exd4 $1 {[%mdl 64] Overworked Piece} 21. cxd4 Nxd4 22. Nxd4 (22. Rxd4 $15 Bxd4 23. Nxd4) 22... Bxg5 $17 23. e5 Nxe5 24. Nxe5 dxe5 25. Nb5 Bc6 26. Nxc7 Rb8 27. Bd5 Rd8 28. Bb3 Rc8 29. Ne6 Be7 {White must now prevent ...Rb8.} 30. Rc1 h5 {Threatens to win with ...Rb8.} 31. g3 h4 32. Bd5 (32. f4 $17) 32... Bd7 $19 33. Rxc8+ Bxc8 {[%mdl 4096] Endgame KBB-KBN} 34. Nc7 g6 35. Bc4 Kf8 36. Nd5 Bd8 37. Nb4 h3 38. Nd3 f6 39. Nc5 (39. f3 $17) 39... Bb6 40. Ne4 Kg7 41. Nd6 Bd7 42. Bf1 (42. Be2 $17) 42... Bc5 43. Ne4 Bd4 44. Be2 Bf5 45. Bf3 Bb6 46. Kf1 Ba5 47. Ke2 (47. Nc5 $17 {was worth a try.}) 47... Bb4 (47... Bd7 $19 {And now ...f5 would win.} 48. Kf1 Bc6) 48. Ke3 $2 {White does not recover from this.} (48. Kf1 $17 {might work better.}) 48... Bd7 49. Nd2 Bb5 50. Bd5 f5 {Strongly threatening ...f4+!} 51. Nc4 Kf6 52. Kf3 Ba4 53. Ke2 Bc5 54. Ne3 e4 55. Bc4 (55. Bb7 $142) 55... Ke5 56. Ba6 g5 57. Nc4+ Kd4 58. Nd2 $2 (58. Ne3 f4 59. Ng4) 58... Bc2 59. Bc8 Bd3+ 60. Kd1 Ke5 61. Ke1 (61. f3 $142 e3 62. f4+ gxf4 63. Nf3+ Kf6 64. gxf4) 61... Bb4 62. Kd1 Bb5 63. Nb1 Ba4+ 64. Ke2 f4 65. gxf4+ gxf4 66. Nd2 Bb5+ 67. Kd1 f3 68. Bb7 Be2+ 69. Kc2 Bd3+ 70. Kd1 Kf4 71. Bc8 Bc5 72. Ke1 {[#]} Bxf2+ $1 {[%mdl 576] Remove Defender, Promotion. Accuracy: White = 42%, Black = 85%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.21"]
[White "Zvjaginsev, Vadim"]
[Black "Rahul Srivatshav P"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "2623"]
[BlackElo "2474"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,101,-16,-17,-18,0,-7,0,-7,0,0,0,0,0,0,0,0,0,0,9,9,9,5,2,4,4,4,4,4,4,5,6,12,4,6,7,0,0,0,29,12,68,58,212,209,208,202,448,453,462,446,424,352,457,465,427,345,1026,1029,999,899,818,737,1338,1409,1393,1284,1823,1431,2287,1399,2058,1889,12829,12831,12821,8527,12834,12835,12836,12836,12835,12831,12841,12835,12841,12842,12831,5273,12845,12844]} 1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 c5 5. g3 Nc6 6. Bg2 Be7 7. O-O O-O 8. b3 {C00: French: Unusual White 2nd moves.} b5 9. a4 b4 10. Bb2 {[#] The position is equal.} dxe4 $146 ({Predecessor:} 10... Ba6 11. Re1 Rc8 12. h4 Na5 13. exd5 exd5 14. Be5 Nd7 15. Ng5 Nxe5 16. Rxe5 Bb7 {0-1 (41) Fehr,A (2081)-Mellema,A (2164) Hoogeveen 2017}) 11. Ne5 Nxe5 12. Bxe5 Bb7 13. Re1 {[%cal Rd3e4]} Nd7 14. Bb2 ({Much weaker is} 14. Bxe4 Bxe4 15. Rxe4 Nxe5 $17) 14... Bf6 15. Bxf6 Nxf6 16. dxe4 Qc7 17. e5 Nd5 18. Ne4 Rad8 {White must now prevent ...Ne3!} 19. Qg4 Qxe5 20. Nxc5 Ne3 21. Nxb7 Qxa1 22. Rxa1 Nxg4 23. Nxd8 Rxd8 $11 {[%mdl 4096] Endgame KRB-KRN} 24. h3 Nf6 25. a5 {[%cal Ba4a5,Ba5a6][%mdl 32]} h5 26. a6 Rd2 (26... g6 $11) 27. Ra4 $14 Rxc2 $2 (27... Rd6 $1 $14) 28. Rxb4 $18 Rc1+ {[#]} 29. Bf1 $1 Rc7 $2 (29... g6 {might work better.} 30. Rb7 Ne4) 30. Rb8+ Kh7 31. Rb7 Rxb7 32. axb7 {KB-KN} Nd7 33. f4 Kg8 34. Be2 h4 $2 {[#]} (34... Kf8 35. Bxh5 Ke7) 35. gxh4 {White is clearly winning.} Kf8 36. Kf2 Ke7 37. Ke3 Kd6 38. Bb5 Nb8 39. f5 exf5 40. Kf4 Ke6 41. h5 Kf6 42. h4 a5 43. Bd3 Ke6 44. Bxf5+ Kf6 45. Bd3 Nc6 46. Bc4 Nb8 47. Bb5 Ke6 48. Kg5 Ke7 49. h6 gxh6+ 50. Kxh6 Kf6 51. h5 {Accuracy: White = 100%, Black = 49%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.22"]
[White "Suleymanli, Aydin"]
[Black "Indjic, Aleksandar"]
[Result "1-0"]
[ECO "D12"]
[WhiteElo "2474"]
[BlackElo "2622"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,95,17,16,7,14,19,11,22,27,18,23,33,20,23,22,25,23,19,18,31,24,24,0,13,10,56,38,46,28,47,20,54,31,46,44,47,8,8,25,14,0,54,0,18,0,17,29,16,65,117,0,0,-45,0,-81,0,-54,-22,-150,-153,-110,6,4,52,58,129,119,139,138,314,320,382,393,358,383,955,953,1212,986,29984,690,29985,29986]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. Nc3 e6 6. Bd3 Bg6 7. O-O Nbd7 8. b3 Bb4 {D12: Slav Defence: 3 Nf3 Nf6 4 e3 Bf5.} 9. Bb2 O-O 10. Ne2 {[#]} Qe7 $146 {The position is equal.} ({Predecessor:} 10... Bd6 11. c5 Bc7 12. b4 Re8 13. b5 e5 14. Bxg6 hxg6 15. bxc6 bxc6 16. dxe5 Nxe5 17. Bxe5 Bxe5 {0-1 (53) Sambuev,B (2485)-Sakaev,K (2633) Sochi 2007}) 11. Nf4 Bxd3 12. Nxd3 Ba3 13. Qc1 Bxb2 14. Qxb2 Rfc8 15. c5 a5 16. a3 Ne8 17. Rfc1 Nc7 18. Nd2 Re8 19. e4 Nb5 20. e5 Qg5 21. Re1 Reb8 22. Re3 b6 23. Rc1 Qe7 24. Rg3 Rb7 25. a4 Nc7 26. cxb6 Rxb6 27. Qc3 Qf8 (27... Qd8 $11) 28. Nf4 (28. Nc5 $14 Nxc5 29. Qxc5 Qxc5 30. Rxc5) 28... g6 29. Qe3 Ne8 30. Rh3 Ng7 31. g4 f5 (31... h5 $14 32. gxh5 Nf5) 32. f3 (32. exf6 $1 $16 Nxf6 33. Rg3 (33. Nxe6 Qa3 $16)) 32... g5 $11 33. Nh5 h6 (33... f4 $5 {[%cal Rf4e3]} 34. Qd3 Ra7 $11) 34. Rf1 (34. Ng3 $11) 34... Rb4 (34... c5 $17 35. dxc5 Rc6) 35. Nxg7 (35. Ng3 $11 f4 {[%mdl 64] Double Attack} 36. Qd3 fxg3 37. Rxh6) 35... Qxg7 36. f4 (36. gxf5 $11 exf5 37. Rc1) 36... fxg4 $17 37. Rg3 {[#]} h5 (37... c5 $1 $17 {[%mdl 512]} 38. Rxg4 (38. dxc5 gxf4) 38... Rf8 39. fxg5 Rxd4 40. Rxf8+ Kxf8 41. Rxd4 cxd4 42. Qf4+ Kg8) 38. f5 $11 Rf8 (38... c5 $5 39. dxc5 exf5 $11) 39. f6 Qg6 {[#]} (39... Nxf6 $14 40. exf6 {[%mdl 64] Discovered Attack} Rxf6) 40. Nf3 $1 {[%mdl 512]} c5 ({Wrong is} 40... gxf3 $2 41. Rxg5 Kh7 42. Rxg6 $18) 41. Qxg5 $40 {[%mdl 128] White goes for the king.} Kf7 $2 {[#] This move loses the game for Black.} (41... Qxg5 $16 42. Nxg5 Rb6) 42. Qc1 $1 $18 Rg8 43. dxc5 h4 44. Nxh4 Qh5 $2 (44... Qg5 45. Qxg5 Rxg5) 45. c6 Nxe5 46. Qc5 {[%csl Gf6][%cal Rc5e7]} Qxh4 47. Qe7+ Kg6 48. f7 {Accuracy: White = 74%, Black = 54%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.23"]
[White "Zhou, Jianchao"]
[Black "Vogel, Roven"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "2622"]
[BlackElo "2473"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,93,17,19,1,6,8,16,-3,0,0,-4,0,0,0,11,-51,16,18,23,7,33,6,12,0,8,0,0,0,0,-3,-4,-2,-2,0,0,0,5,0,7,8,7,0,0,1,47,47,47,47,52,55,63,58,54,54,48,49,76,64,64,65,70,64,108,99,178,178,178,178,217,196,189,192,667,614,600,484,684,660,1609,1425,29966,29967,29968,29969,29969,29966]} 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Bf4 Nf6 5. e3 O-O 6. a3 {D35: Queen's Gambit Declined: Exchange Variation.} b6 7. Nf3 Bb7 8. Rc1 {The position is equal.} c5 9. dxc5 bxc5 10. Be2 Nbd7 {[%cal Bb8d7,Bd7b6,Bb6d5][%mdl 32]} 11. O-O Ne4 {[#]} 12. Qc2 $146 (12. cxd5 $11 Nxc3 13. Rxc3 exd5 14. Qb3) ({Predecessor:} 12. cxd5 Nxc3 13. Rxc3 exd5 14. Ne5 Nxe5 15. Bxe5 Qb6 16. Qb3 {½-½ (16) Yakovlev,O (2370)-Stanila,E (2301) ICCF email 2016}) 12... Nxc3 (12... g5 $15 13. Qb3 Qc8) 13. bxc3 $11 Nb6 14. cxd5 Nxd5 15. Be5 Bf6 16. c4 Bxe5 17. Nxe5 Nf6 18. f3 Qc7 19. Qc3 Nd7 20. Nxd7 Qxd7 21. Qa5 Rfc8 22. Rfd1 Qc7 23. Qxc7 Rxc7 24. Rb1 Bc6 25. Kf2 Kf8 26. f4 Ke7 27. Bf3 {Threatens to win with Bxc6.} Rac8 28. Bxc6 Rxc6 $14 {[%mdl 4096] Endgame KRR-KRR} 29. a4 {[%cal Ba3a4,Ba4a5][%mdl 32]} Rb6 30. Rb5 Rcc6 31. Rdb1 Kd7 32. Ke2 Rd6 33. a5 Rxb5 34. Rxb5 {KR-KR} Rc6 35. g4 h6 36. h4 g6 (36... f6 $16) 37. g5 $18 hxg5 38. hxg5 Kc7 39. Kf3 Kd6 40. Rb7 Ra6 $2 (40... Rc7 41. Rxc7 Kxc7) 41. Rxf7 {[#] Black must now prevent f5!} Rxa5 42. Rg7 Ra4 (42... Ra1 $142 43. Rxg6 Rc1) 43. Rxg6 Rxc4 44. f5 Ke5 45. f6 {White mates.} Rc1 46. Kg2 Kf5 47. Rg8 {Accuracy: White = 93%, Black = 55%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.24"]
[White "Raja Harshit"]
[Black "Jobava, Baadur"]
[Result "1/2-1/2"]
[ECO "B11"]
[WhiteElo "2472"]
[BlackElo "2620"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,56,12,4,58,47,46,41,79,66,111,93,119,114,133,81,90,98,99,65,60,70,51,0,0,0,0,0,0,0,0,0,96,80,85,64,66,72,66,0,0,0,0,0,0,0,0,0,0]} 1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. Be2 g6 {B11: Caro-Kann: Two Knights Variation.} (6... d4 $11) 7. d4 $14 Bg7 8. Be3 Ne7 {White is slightly better.} 9. h4 {[#]} Qa5 $146 ({Predecessor:} 9... h5 10. O-O-O Nd7 11. Bg5 Qb6 12. exd5 cxd5 13. Rhe1 Bh6 14. Bxh6 Rxh6 15. Qf4 Rh7 {½-½ (23) Ragger,M (2644)-Jobava,B (2712) Austria 2017}) 10. O-O-O $1 Nd7 11. h5 $1 b5 {With the idea ...b4.} 12. hxg6 (12. exd5 $142 Nxd5 13. Bd2) 12... hxg6 $16 13. Rxh8+ Bxh8 14. Qh3 Bf6 15. exd5 $1 Nxd5 16. Ne4 ({Better is} 16. Nxd5 $14 cxd5 17. Kb1) 16... Qxa2 $11 17. Nxf6+ N7xf6 18. Qh8+ Ke7 19. Qxa8 Ne4 $1 {[%cal Ra2a1]} 20. c3 Ndxc3 {[#]} (20... Nexc3 $11 {remains equal.} 21. Bf3 (21. bxc3 Qa3+ 22. Kc2 Qxc3+ {[%mdl 64] Double Attack} 23. Kb1 Qb4+ 24. Kc2 Qc3+ {[%mdl 64] Double Attack} 25. Kb1 Qb4+ 26. Kc2 Qc3+ $11 {[%mdl 64] Double Attack}) 21... Qa1+ 22. Kc2 Nxd1 23. Qb7+ (23. Bxd1 Nb4+ 24. Kd2 Qxb2+ 25. Ke1 Qc3+ 26. Bd2 Qxd4 $11) 23... Kf6 $1 {[%mdl 512]} 24. Bxd1 Nb4+ 25. Kc3 Nd5+ 26. Kc2 Nb4+ 27. Kc3 Nd5+ 28. Kc2) 21. Bg5+ $1 $16 (21. bxc3 $6 Qa3+ 22. Kc2 Qxc3+ 23. Kb1 Qb4+ 24. Kc2 Qc3+ 25. Kb1 Qb4+ 26. Kc2 Qc3+ $11) 21... Nxg5 22. bxc3 Ne4 {[%mdl 64] Double Attack} 23. Qxc6 Qxe2 $14 {KQR-KQN} 24. d5 (24. Qc7+ $14 Kf8 25. Qb8+ Kg7 26. Qe5+ f6 27. Qc7+ (27. Qxe6 f5 $14) 27... Kh6 28. Qf4+ Kg7 29. Qf3 (29. Rh1 Ng5 $14) 29... Qxf3 30. gxf3 Nxc3 31. Re1) 24... Nxf2 $11 {The position is equal.} 25. d6+ Kf6 26. Rd2 Nd3+ $1 ({But not} 26... Qe1+ $2 27. Kc2 $18) 27. Kc2 Ne1+ 28. Kc1 Nd3+ {Accuracy: White = 80%, Black = 75%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.25"]
[White "Chigaev, Maksim"]
[Black "Abdumalik, Zhansaya"]
[Result "1/2-1/2"]
[ECO "C84"]
[WhiteElo "2616"]
[BlackElo "2471"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,91,0,5,5,17,9,26,24,8,11,16,25,22,12,11,46,19,31,20,31,27,14,15,33,33,27,22,35,40,41,36,84,65,55,22,31,24,53,13,20,29,177,182,186,190,176,171,179,181,187,187,274,160,161,74,68,53,65,59,79,79,79,0,0,0,0,0,0,-139,-155,-139,-60,-84,-45,-50,-3,-40]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 d6 8. a3 $1 {[%mdl 4] is more profitable than 8.a4 at the moment. Played by Alireza Firouzja in February 2020.} O-O 9. Nc3 Na5 {C77: Ruy Lopez: 3...a6 4 Ba4 Nf6, unusual lines.} 10. Ba2 Be6 11. b4 Bxa2 {White has an edge.} 12. Nxa2 Nb7 13. c4 c6 14. Nc3 Qd7 {[#]} 15. Be3 $146 ({Predecessor:} 15. h3 Rfe8 16. Be3 Bf8 17. Qb3 h6 18. a4 bxc4 19. dxc4 Qe6 20. Rfd1 Rec8 21. Nd2 {1-0 (59) Firouzja,A (2702)-Aronian,L (2758) chess.com INT 2019}) 15... h6 16. Qb3 Rfb8 17. Rab1 Qe6 18. Qa2 Nd8 19. Rfc1 Rb7 20. h3 Nd7 21. Qe2 Qg6 22. a4 bxa4 23. Qa2 Qe6 24. Qxa4 Rab8 25. Qa5 Nf6 26. c5 d5 {Threatening ...d4.} 27. Bd2 d4 28. Ne2 Ra7 {[#]} (28... Nd7 $11) 29. Nxe5 $1 $18 {[%mdl 512]} Rb5 ({But not} 29... Qxe5 $2 30. Bf4 $18) 30. Nxd4 {[%mdl 64] Double Attack} Qxe5 31. Nxb5 cxb5 32. Qb6 Ra8 {[#]} 33. c6 $1 Ne6 (33... Rc8 $142 34. Qxa6 Rc7) 34. c7 (34. Qb7 $18 Re8 35. c7 (35. Qxa6 $2 Bd6 $19) 35... Nxc7 36. Rxc7) 34... Rc8 $16 35. Qxa6 (35. f4 $1 $18 {[%cal Rf4e5] has better winning chances.} Qd4+ 36. Qxd4 Nxd4 37. Kf2) 35... Rxc7 36. Rxc7 Nxc7 37. Qa1 Qh5 38. Be3 Ne6 39. d4 (39. e5 $16 Ne8 40. Rc1) 39... Qg6 $11 40. d5 Ng5 41. Bxg5 $1 hxg5 42. Re1 (42. f3 $11 {remains equal.}) 42... Bxb4 $17 43. Re2 Bf8 (43... g4 $17 {aiming for ...gxh3.} 44. Qa8+ Kh7) 44. d6 Nd7 ({Inferior is} 44... Bxd6 45. e5 $16) 45. e5 Qd3 46. Re3 {What a bad dream for Black. Accuracy: White = 71%, Black = 68%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.26"]
[White "Kozionov, Kirill"]
[Black "Kobalia, Mikhail"]
[Result "1/2-1/2"]
[ECO "A01"]
[WhiteElo "2466"]
[BlackElo "2609"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,83,0,21,28,11,11,19,-2,-1,0,0,-14,0,-5,0,0,9,0,0,0,4,0,17,15,14,12,18,0,0,0,17,14,17,7,16,11,22,0,26,14,22,0,4,0,0,0,0,3,2,2,21,18,18,18,24,21,18,20,23,8,22,16,60,43,48,46,68,15,47,54,39,0,17,0,47,24]} 1. b3 e5 2. Bb2 Nc6 3. e3 g6 4. d4 exd4 5. Nf3 Bg7 6. Nxd4 {A01: Nimzowitsch-Larsen Opening.} Nxd4 7. Bxd4 Nf6 8. Be2 {The position is equal.} O-O 9. O-O d5 10. c4 dxc4 11. Bxc4 {[#]} Ne4 $146 ({Predecessor:} 11... Qd6 12. Bb2 Ne4 13. Bxg7 Kxg7 14. Qxd6 Nxd6 15. Be2 c5 16. Rd1 Rd8 17. Nc3 Be6 {1-0 (45) Nakamura,H (2787)-Andreikin,D (2712) Moscow 2018}) 12. Bxg7 Kxg7 13. Qxd8 (13. f3 {with more complications.} Qf6 14. Na3 Rd8 15. Qc2 Nd2 16. Rfd1) 13... Rxd8 14. f3 Nd6 15. Be2 Nf5 16. Kf2 Re8 17. e4 Nd4 {Strongly threatening ...Nc2.} 18. Bd3 Rd8 19. Rd1 Nb5 20. Rd2 a6 21. Bc4 Bd7 22. a4 Nd6 23. Bf1 a5 24. Nc3 Be6 25. Rb1 f5 26. exf5 Nxf5 27. Rbd1 (27. Rdb2 {looks sharper.} Bf7 28. Re1 Rd4 29. g4 Nd6 30. Re7) 27... Rxd2+ 28. Rxd2 Nd6 ({Much weaker is} 28... Bxb3 $6 29. Rb2 $16 (29. Rd7+ Kg8 $14)) 29. Nd5 Ne8 {[#] Hoping for ...Rd8.} 30. Bc4 Rd8 {aiming for ...Nf6.} 31. Ke3 {Nxc7! is the strong threat.} Bxd5 32. Rxd5 Rxd5 33. Bxd5 $11 {[%mdl 4096] Endgame KB-KN} Nd6 34. f4 Kf6 35. g3 c6 36. Bg2 (36. Bf3 {is interesting.} c5 37. Be2 h5 38. Bd3 Kf7 39. h3) 36... Nf5+ 37. Kd3 Ke6 38. Be4 ({White should play} 38. g4 $1 $14 Ne7 39. Kd4) 38... Nd6 39. Bf3 Nf5 40. Be4 Nd6 41. Bf3 Nf5 $1 42. Ke4 {Accuracy: White = 97%, Black = 92%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "1.27"]
[White "Svane, Rasmus"]
[Black "Gokerkan, Cem Kaan"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2608"]
[BlackElo "2461"]
[Annotator "TA"]
[PlyCount "379"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,379,7,0,27,25,33,33,14,15,6,0,9,0,23,0,0,0,21,0,0,0,41,0,8,17,39,28,31,29,46,10,0,0,0,0,0,0,0,0,3,3,4,8,9,0,0,0,0,0,0,0,0,0,0,0,70,66,66,0,0,0,0,0,0,0,0,0,0,0,44,39,37,27,21,21,26,20,24,20,51,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,21,0,0,0,16,16,16,16,16,9,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,0,16,0,16,16,16,16,16,0,16,0,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,0,16,16,16,16,16,16,16,16,16,16,16,16,16,16,52,52,52,52,73,16,60,16,16,16,16,0,45,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,39,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 Nf6 2. g3 d5 3. Bg2 e6 4. O-O c5 5. c4 d4 6. e3 Nc6 7. exd4 cxd4 8. d3 Bc5 {A13: English Opening: 1...e6.} 9. Bg5 O-O 10. Nbd2 Be7 {White is slightly better.} 11. Re1 h6 12. Bxf6 Bxf6 13. Rc1 Bd7 14. a3 a5 $1 15. c5 {[#]} Ra6 $146 ({Predecessor:} 15... Be7 16. Qe2 a4 17. Ne5 Qc7 18. Nxd7 Qxd7 19. Nc4 Bxc5 20. Qh5 f5 21. Qe2 Rfe8 22. Qc2 {½-½ (22) Grabner,H (2214)-Silva,R (2373) ICCF email 2011}) 16. Ne4 Be7 $1 17. Qa4 e5 (17... Be8 {is more complex.} 18. Ned2 Ra7 19. h4 Ra6 20. Re2 Ra7) 18. Nd6 Bxd6 19. cxd6 Rb6 20. Qc2 Qf6 21. Nd2 Be6 22. Ne4 Qd8 23. Re2 Rb5 24. Nc5 Qxd6 25. Nxe6 Qxe6 26. Qa4 Na7 27. Rc7 Rc8 28. Rxc8+ Qxc8 29. Rc2 $36 {[%mdl 2048] White has good play.} Qe6 30. Rc7 Rxb2 {[#] ( -> ...Rb1+)} 31. Rxb7 Rxb7 32. Bxb7 Qe7 33. Bd5 Qd8 34. Qc4 Qd7 ({Black should play} 34... Qe7 $1 $11) 35. Qc5 $14 a4 36. Bc4 (36. Bg2 $14) 36... e4 $1 $11 37. dxe4 d3 38. Bd5 Nb5 39. Qb4 Nc7 40. Qd4 Qb5 $1 41. Kg2 Ne6 42. Qc3 Nc5 43. h4 h5 44. Kf3 Qb6 45. Qd4 Kf8 46. Bc4 Kg8 47. Bxd3 (47. e5 $14) 47... Qb3 48. Qxc5 Qxd3+ {[%mdl 4096] Endgame KQ-KQ} 49. Kf4 g6 50. Qb4 Qb3 51. Qd6 Qc2 52. Qd8+ Kh7 53. Qd4 Qc1+ 54. Qe3 Qc7+ 55. Kf3 Qc4 56. Kf4 Qc7+ 57. Kf3 Qc4 58. Kg2 Kg8 59. Qf4 Qb3 60. Qd6 Qc4 61. Qb8+ Kh7 62. Qe5 Qb3 63. Qc5 (63. Qd5 {looks sharper.} Kg8 64. Qd8+ Kg7 65. Qe7 Kg8 66. Qd8+) 63... Kg8 64. Qe7 Qc4 65. e5 Qe4+ 66. Kh2 Qf3 67. Qc5 Qe4 68. Kg1 Qe1+ 69. Kg2 {Black must now prevent Qd5.} Qe4+ 70. Kh2 Qf3 71. Kg1 (71. e6 {seems wilder.} fxe6 72. Qc8+ Kg7 73. Qc7+ Kh6 74. Qc1+) 71... Qd1+ 72. Kg2 Qd3 73. Qe3 Qd5+ 74. Qf3 Qb3 75. Qf6 Qd5+ 76. Kh2 Qd4 77. Qf3 Qc4 78. Qa8+ Kg7 79. Qd8 Qe4 80. Qf6+ Kg8 81. Qd8+ Kg7 82. Qf6+ Kg8 83. Qf4 Qc2 84. Qe3 Qb3 85. Kg2 (85. Kg1 {looks sharper.} Qd1+ 86. Kh2 Qb3) 85... Qd5+ 86. Qf3 Qb3 87. Qe4 Kh7 88. Qe3 Kg8 89. Qc5 Qd3 90. Qb4 Qd5+ 91. Kh2 Qf3 92. Qb2 Qb3 93. Qc1 Qf3 94. Kg1 Qe4 95. Qd1 Qc4 96. Qd8+ Kh7 97. Qf6 Qc7 98. Kh2 Qd7 99. Qf4 (99. Qd6 {with more complications.} Qf5 100. Qc5 Qe4 101. Qe7 Qf5 102. Qa7) 99... Kg8 100. Qe4 Kh7 101. Kg2 Kg7 102. Qf3 Qd4 103. Qf6+ Kg8 104. Qc6 Qg4 105. Qc2 Qd4 106. e6 Kf8 $1 107. Qc6 Ke7 108. exf7 Kxf7 109. Qf3+ Kg7 110. Qb7+ Kg8 111. Qe7 Qd5+ 112. Kh2 Qf3 113. Qe3 (113. Qe6+ {keeps more tension.} Kh7 114. Qd7+ Kg8 115. Qd8+ Kg7 116. Qd4+) 113... Qf7 114. Kg1 {Strongly threatening Qe4.} Qc4 115. Kg2 Qd5+ 116. Qf3 Qc4 117. Qb7 Qd4 118. Qc6 Kg7 119. Qc7+ Kg8 120. Qc2 Kg7 121. Qc6 Kf7 122. Qf3+ Kg7 123. Kh2 Qc5 124. Kg1 Qd4 125. Qb7+ Kf6 126. Qc6+ Kf7 127. Qc7+ Kf6 128. Qc1 Kg7 129. Kf1 Qd3+ 130. Kg1 Qd4 131. Qe3 Qc4 132. Qe5+ Kg8 133. Kg2 Qc6+ 134. Kh2 Qf3 135. Qc5 (135. Qe6+ {looks sharper.} Kg7 136. Qe3 Qc6 137. Qd4+ Kh7 138. Qf4) 135... Qe4 136. Qc8+ Kf7 137. Qc3 (137. Qd7+ {is interesting.} Kg8 138. Qd6 Kf7 139. Qb6 Qf3 140. Qc7+) 137... Qa8 138. Qc4+ Kg7 139. Kg1 Qa7 140. Kf1 (140. g4 $16) 140... Kh7 141. Qd3 Qe7 142. Qe3 Qb7 143. Qd3 Qe7 144. f4 Qb7 145. Kf2 Qb2+ 146. Ke3 Qb6+ 147. Ke4 Kh6 148. Kd5 (148. f5 {feels hotter.} gxf5+ 149. Kf3 Qc6+ 150. Kf4 Qc7+ 151. Kf3) 148... Qb3+ 149. Kd4 {Threatens to win with Qxb3.} Qb6+ 150. Kc4 Qa6+ 151. Kc3 Qa5+ 152. Kd4 Qb6+ 153. Ke5 Qc7+ 154. Kd5 (154. Kd4 {seems wilder.} Qd6+ 155. Kc4 Qa6+) 154... Qb7+ 155. Ke5 Qc7+ 156. Ke4 Qe7+ 157. Kf3 Qb7+ 158. Ke3 Qb6+ 159. Qd4 Qb3+ 160. Ke4 {[%cal Rd4h8]} Qe6+ 161. Kd3 {[%cal Rd4h8]} Qb3+ 162. Qc3 Qd5+ 163. Ke3 {[%cal Rc3h8]} Kh7 164. Qb4 Qd7 165. Ke4 Qd1 166. Ke5 {Hoping for f5.} Qd7 167. Qd6 Qf5+ 168. Kd4 {Qe7+ is the strong threat.} Qc2 169. Qe7+ Kg8 170. Qe3 Qc6 171. Qc3 (171. Qe4 {is more complex.} Qb6+ 172. Ke5 Kg7 173. Qd4 Qc6 174. f5) 171... Qb6+ 172. Kc4 Kh7 173. Kd5 Qb3+ 174. Kd4 {aiming for Qxb3.} Qb6+ 175. Kd3 Qb1+ 176. Kc4 Qb6 177. Qb4 Qe6+ {The position is equal.} 178. Kb5 Qb3 179. Ka5 Qxg3 180. Qe7+ Kg8 181. Qe8+ Kg7 182. Qe7+ Kg8 183. Qd6 Qxh4 184. Qxg6+ Kf8 185. Qd6+ Qe7 186. Qh6+ Kg8 187. Qg6+ Kf8 188. Qh6+ (188. Kxa4 {is a self mate.} Qe8+ 189. Qxe8+ Kxe8 190. Kb4 Ke7 191. Kb5 h4 192. a4 h3 193. f5 h2 194. Kc4 h1=Q 195. a5 Qe4+ 196. Kb5 Qxf5+ 197. Kb4 Qd3 198. a6 Qxa6 199. Kc3 Qe2 200. Kb4 Qc2 201. Kb5 Qc3 202. Ka4 Kd6 203. Kb5 Qb3+ 204. Ka5 Kc6 205. Ka6 Qb6#) 188... Kg8 189. Qg6+ Kf8 190. Qh6+ {Accuracy: White = 95%, Black = 96%.} (190. Kxa4 Qe8+ 191. Qxe8+ Kxe8 192. Kb4 h4 193. Kc5 h3 194. f5 h2 195. f6 h1=Q 196. a4 {[#]} Qa1 $1 {[%mdl 512]} 197. Kb5 Qxf6 198. Kc5 Qc3+ 199. Kd5 Qb4 200. a5 Qxa5+ 201. Kd4 Qd2+ 202. Ke4 Ke7 203. Kf3 Kd6 204. Kg4 Ke5 205. Kf3 Kf5 206. Kg3 Qe2 207. Kh3 Kf4 208. Kh4 Qh2#) 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.28"]
[White "Gadimbayli, Abdulla"]
[Black "Yilmaz, Mustafa"]
[Result "0-1"]
[ECO "B91"]
[WhiteElo "2460"]
[BlackElo "2607"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,84,9,16,0,0,0,0,0,0,0,0,-1,0,-6,-8,-11,0,-25,-25,-27,-23,-26,-21,-25,-17,-24,-25,-14,-29,-6,25,21,75,-66,-51,-62,-53,-166,-65,-243,-218,-248,-227,-231,-237,-250,-247,-228,-218,-237,-238,-363,-333,-336,-339,-325,-325,-315,-325,-306,-208,-449,-354,-387,-383,-423,-410,-386,-390,-516,-515,-485,-470,-752,-751]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nf3 {B91: Sicilian Najdorf: 6 g3.} (7. Nde2 {feels hotter.} Be7 8. Bg2 b5 9. Nd5 Nbd7 10. Nec3) 7... Be7 8. Bg2 O-O 9. O-O {The position is equal.} b5 10. a4 b4 11. Nd5 {[#]} a5 $146 ({Predecessor:} 11... Nxd5 12. Qxd5 Ra7 13. Be3 Be6 14. Qd3 Rb7 15. Nd2 Qc7 16. Rfc1 Rc8 17. f4 f6 {1-0 (44) Gadimbayli,A (2420)-Isik,A (2212) Cesme 2018}) 12. Nxe7+ Qxe7 13. Nh4 Nc6 14. Nf5 Bxf5 $1 15. exf5 d5 16. c4 bxc3 17. bxc3 Rfd8 18. Ba3 Qc7 19. Rb1 e4 20. Rb5 Qe5 21. c4 e3 (21... Nb4 $11) 22. Qb1 ({Better is} 22. Re1 $1 $16) 22... exf2+ $1 $15 23. Kh1 Nd4 $36 {[%mdl 2048] Black is pushing.} 24. Qa1 (24. Bb2 $1 $15 Qe3 25. Bxd4 Qxd4 26. cxd5) 24... Ne4 (24... Rac8 $1 $19 {[%cal Rc8c4]} 25. cxd5 Rc4) 25. cxd5 $2 {This move loses the game for White.} ({White must play} 25. Bc5 $1 $15 Nxc5 26. Rxc5) 25... Re8 {White must now prevent ...Nd2.} (25... Rxd5 26. Rxd5 Qxd5 27. Qb1 $11) 26. d6 Nxb5 27. Qxe5 Rxe5 28. Bb2 Ree8 $1 ({Wrong is} 28... Nexd6 $2 29. Bxe5 Rc8 30. axb5 $18) 29. d7 {[#]} Re7 $1 {Hoping for ...Nc7.} 30. f6 gxf6 ({Resist} 30... Rxd7 31. Bxe4 Rad8 32. axb5) 31. Bxe4 (31. Bxf6 $142 Rxd7 32. Bxe4) 31... Rxe4 $19 32. Bxf6 Rxa4 ({Not} 32... Re1 33. Kg2 $11) 33. d8=Q+ Rxd8 34. Bxd8 {[%mdl 4096] Endgame [#] KRB-KRN} Ra2 $1 35. Kg2 Kg7 36. Bg5 $2 (36. Bb6 {was the only defense.}) 36... Kg6 37. Be3 a4 {[%cal Ba5a4,Ba4a3,Ba3a2][%mdl 32]} 38. Kf3 a3 39. Bxf2 Rb2 40. h3 a2 {Black is clearly winning.} 41. Ra1 Kf5 42. g4+ (42. Bb6 $142) 42... Ke5 {Accuracy: White = 50%, Black = 72%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.29"]
[White "Karthikeyan, Murali"]
[Black "Radovanovic, Mihajlo"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "2602"]
[BlackElo "2458"]
[Annotator "TA"]
[PlyCount "143"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,143,40,34,22,17,-45,-50,-41,44,43,76,45,53,53,59,50,54,39,25,29,27,29,37,40,48,40,24,0,0,0,0,0,0,-7,0,0,8,0,59,49,41,41,93,111,90,0,0,0,93,93,93,102,160,152,139,139,141,0,141,149,218,211,291,296,443,389,409,391,471,441,508,475,688,612,440,631,720,725,750,762,660,766,764,764,743,735,624,539,483,351,346,338,338,338,338,326,777,760,1325,1207,1065,1394,1162,1060,5401,4925,1879,8691,29965,29967,29939,29966,6429,6418,6050,6429]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. O-O-O d5 10. Qe1 e5 11. Nxc6 bxc6 12. exd5 Nxd5 13. Bc4 Be6 14. Ne4 Qc7 15. Bc5 Rfd8 16. h4 {B76: Sicilian Dragon: Yugoslav Attack, 9 g4 and 9 0-0-0.} Nf4 {[#]} 17. Qc3 $146 (17. Bxe6 $11 Rxd1+ 18. Qxd1 Nxe6 19. Be3) ({Predecessor:} 17. Bxe6 Rxd1+ 18. Qxd1 Nxe6 19. Be3 Rb8 20. Qd6 Qxd6 21. Nxd6 e4 22. c3 exf3 23. gxf3 Be5 {1-0 (43) Lopez Martinez,J (2509)-Martinez Martin,D (2385) Don Benito 2012}) 17... Rxd1+ $15 18. Rxd1 {Black is slightly better.} Rd8 ({Black should play} 18... Bxc4 $15 19. Qxc4 Nxg2) 19. g3 $14 Bxc4 20. Qxc4 Rxd1+ 21. Kxd1 Qd7+ 22. Ke1 Ne6 23. Qb4 {Hoping for Qb8+.} f5 24. Qb8+ Qd8 25. Qxd8+ Nxd8 $11 {[%mdl 4096] Endgame KBN-KBN} 26. Nf2 a6 27. Bb6 Ne6 28. c3 Bf8 29. Nd3 Bd6 30. Kf2 Kf7 31. b4 h5 32. a4 Kf6 33. Nb2 Bc7 (33... Nc7 $11) 34. Nc4 Bxb6+ 35. Nxb6 $14 {And now Nd7+ would win. KN-KN} Nc7 (35... Nf8 $14) 36. Nd7+ $16 Ke6 37. Nf8+ Kf7 38. Nd7 Ke6 39. Nc5+ Kd5 40. Ke2 Kd6 (40... a5 $142) 41. c4 Ke7 42. Ke3 Kd6 43. Ke2 Ke7 $1 44. Kf2 Kd6 {[#]} (44... Kf6 $16 45. f4 e4) 45. g4 $1 $18 {[%mdl 512]} Ke7 {[#]} (45... fxg4 46. fxg4) 46. g5 $1 Kd6 (46... Ne6 {was worth a try.} 47. Nxa6 Kd8) 47. Ke3 Ke7 48. Nd3 Kd6 {[#]} 49. f4 $1 e4 50. Ne5 c5 (50... Ne6 $142 51. c5+ Kc7 52. Nxg6 Kd7 53. Ne5+ Kc7) 51. b5 axb5 52. axb5 Na8 53. Nxg6 Nb6 54. Ne5 Ke6 55. Kd2 Ke7 56. Nc6+ Ke6 57. Na5 Ke7 58. Kc3 Na4+ 59. Kb3 Nb6 60. Nb7 Nd7 61. Kc3 Ke6 62. Na5 Kd6 $2 (62... Ke7 63. Nb3 Kf7) 63. Nb3 Nf8 64. b6 Kc6 {[#]} 65. Nxc5 $1 {[%mdl 512]} Kxb6 (65... Kxc5 66. b7) 66. Kd4 Ng6 {[#]} 67. Nxe4 $1 {[%mdl 512]} Nxh4 (67... fxe4 68. f5) 68. Ng3 (68. Nf6 $142 Ng6 69. Nxh5) 68... Nf3+ 69. Kd5 h4 70. Nh1 h3 71. g6 Nh2 72. Nf2 {Accuracy: White = 97%, Black = 60%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.30"]
[White "Pogosyan, Stefan"]
[Black "Praggnanandhaa R"]
[Result "1/2-1/2"]
[ECO "E73"]
[WhiteElo "2455"]
[BlackElo "2602"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,57,22,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Be2 O-O 6. Bg5 Na6 7. Nf3 e5 8. d5 h6 9. Bh4 Qe8 10. Nd2 Bd7 11. a3 Nc5 12. O-O a5 13. b3 {The position is equal.} Nfxe4 {E92: King's Indian: Classical: 6 Be2 e5: 7 dxe5, 7 Be3 and Petrosian System without 7...Nbd7.} 14. Ncxe4 Nxe4 15. Nxe4 f5 $1 16. Nd2 {And now f3 would win.} e4 {[#]} 17. f4 $146 ({Predecessor:} 17. Ra2 g5 18. Bh5 Qe5 19. Bg3 f4 20. Nxe4 Qxe4 21. f3 Qd4+ 22. Qxd4 Bxd4+ 23. Bf2 Be5 24. a4 Be8 25. Bxe8 Raxe8 26. Re1 Bc3 27. Rxe8 Rxe8 28. Kf1 {½-½ (28) Laine,J (2264)-Shapiro,V (2363) ICCF email 2018}) 17... exf3 $1 18. Nxf3 (18. Bxf3 Bxa1 19. Qxa1 Qe3+ 20. Rf2 g5 $15) 18... Bxa1 19. Qxa1 g5 $1 ({Don't go for} 19... Qxe2 $2 20. Re1 $18) 20. Bf2 $1 Qxe2 21. Re1 Qc2 22. Nd4 $1 {[%cal Rd4c2]} Qd2 {Hoping for ...Rae8.} 23. Re2 Qf4 {[#] White must now prevent ...Rae8.} 24. Ne6 $1 {[%mdl 512]} Bxe6 $1 25. Rxe6 {Intending Rg6+ and mate.} Rf7 $1 26. Rxh6 {[%csl Ga1][%cal Rh6h8]} Rg7 $1 {Threatens to win with ...Re8.} 27. Bd4 Re8 {Strongly threatening ...Re2.} 28. Bxg7 {White threatens Rh8+ and mate.} Qe3+ {[%mdl 64] [#] Double Attack} 29. Kf1 {A rather calm draw. Accuracy: White = 100%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.31"]
[White "Basso, Pier Luigi"]
[Black "Krishna C R G"]
[Result "1/2-1/2"]
[ECO "D52"]
[WhiteElo "2600"]
[BlackElo "2443"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,80,29,36,29,40,32,26,39,27,40,34,4,38,17,19,0,0,0,0,0,0,0,0,0,11,16,18,21,20,18,21,5,6,8,6,14,25,-6,-17,-41,-41,-41,-41,-36,-50,-50,-37,-45,-43,-59,-43,-49,-57,-45,-52,-73,-44,-84,-49,-83,0,-102,-16]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Nbd7 5. Bg5 c6 6. e3 Qa5 7. Nd2 dxc4 8. Bxf6 Nxf6 9. Nxc4 Qc7 10. Rc1 Bd7 11. g3 {D52: Queen's Gambit Declined: Cambridge Springs Variation.} Be7 12. Bg2 O-O 13. O-O {White has an edge.} Rfd8 14. e4 b5 {[#]} 15. Nd2 $146 ({Predecessor:} 15. Ne3 Qb6 16. e5 Nd5 17. Ne4 Be8 18. Nc5 Bxc5 19. Nxd5 cxd5 20. Rxc5 b4 21. Qd2 {1-0 (43) Wojtaszek,R (2745)-Banusz,T (2611) Linares 2017}) 15... b4 16. Na4 e5 17. dxe5 Ng4 18. Qe2 {With the idea f4.} Nxe5 19. Nb3 Bg4 20. f3 Bc8 {Threatens to win with ...Nd3.} 21. Nbc5 $1 Qa5 22. b3 Nd7 {[%cal Rd7c5]} 23. Qf2 Nb6 24. Rfe1 Ba6 25. Bf1 Nxa4 26. Nxa4 Bb5 27. Nc5 Qb6 28. Rc2 Rd6 29. e5 Rd5 {[%cal Re7c5]} 30. Ne4 Rxe5 {[#] aiming for ...f5.} 31. Qxb6 axb6 32. Bxb5 cxb5 33. Rd1 f5 34. Nd6 Rd8 $36 {[%mdl 2048] Black has good play.} 35. Rcd2 Kf8 36. f4 Rc5 37. Kf1 g6 38. Ke1 Bf6 {[#] White must now prevent ...Bc3.} 39. Kf1 Be7 (39... Rd7 $17) 40. Ke2 (40. Ke1 $1 $11 {keeps the balance.}) 40... Bxd6 {Accuracy: White = 86%, Black = 84%.} (40... Ra8 $17 41. Nb7 Rc7) 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.32"]
[White "Murzin, Volodar"]
[Black "Can, Emre"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "2442"]
[BlackElo "2600"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,120,4,0,0,0,8,7,6,15,7,14,3,10,14,12,8,22,0,0,0,-1,-10,19,0,0,0,0,0,0,0,0,-1,0,-70,-57,-68,-43,-38,-55,-75,-86,-126,-55,-70,-67,-73,-90,-73,-75,-119,-110,-112,-88,-85,-60,-70,-68,-85,-92,-87,-78,-113,-111,-137,-164,-179,-144,-143,-101,-107,-121,-174,-145,-146,-150,-143,-152,-133,-102,-184,-184,-198,-147,-198,-171,-168,-157,-177,-135,-144,0,-178,-165,-194,-183,-194,-165,-176,-168,-175,-149,-146,-155,-246,-222,-718,-681,-1156,-1039,-2142,-2124,-1783,0]} 1. e4 c5 2. Nf3 e6 3. g3 Nc6 4. Bg2 Nf6 5. Qe2 e5 6. O-O {B40: Sicilian: 2...e6, Unusual lines.} Be7 7. d3 O-O 8. Na3 {The position is equal.} d6 9. Nc4 b5 10. Ne3 Nd4 11. Qd1 {[#]} Re8 $146 ({Predecessor:} 11... g6 12. Nd2 Bb7 13. a4 a6 14. f4 exf4 15. gxf4 Nh5 16. f5 Bg5 17. Nf3 Nf4 {1-0 (30) Dragnev,V (2458)-Estremera Panos,S (2339) Stockholm 2018}) 12. Nd2 Bb7 13. f4 exf4 14. gxf4 Bf8 15. Rf2 Qb6 16. Ndf1 c4 17. c3 Ne6 18. e5 $1 {[%cal Re5f6]} Bxg2 19. Nxg2 dxe5 20. fxe5 Bc5 $36 {[%mdl 2048] White is under pressure.} 21. d4 (21. Be3 $11 Ng5 22. Rf5 Rxe5 23. Rxe5 Nh3+ 24. Kh1 Bxe3 25. Qf3 {[%mdl 64] Double Attack} Nf2+ {[%mdl 64] Double Attack} 26. Kg1 Nh3+ {[%mdl 64] Discovered Attack (Double check)} 27. Kh1 Nf2+ {[%mdl 64] Double Attack} 28. Kg1 Nh3+ {[%mdl 64] Discovered Attack (Double check)} 29. Kh1) 21... Ne4 $15 22. dxc5 Qxc5 {[%mdl 64] Pin} 23. Be3 Nxf2 24. Bxf2 Qxe5 25. Qg4 {[#]} Qg5 ({Better is} 25... h5 $1 $17 {[%cal Rh5g4]} 26. Qg3 Qe2) 26. Qg3 a6 27. Re1 {aiming for Rxe6!} Qxg3 28. hxg3 Ng5 29. Rxe8+ Rxe8 30. Be3 Ne4 31. Bd4 f6 32. Nge3 Kf7 33. g4 {[#]} h5 $1 {[%mdl 512]} 34. gxh5 Rh8 35. Nd5 Rxh5 36. Nc7 Rg5+ 37. Kh2 a5 {[%cal Ba6a5,Ba5a4][%mdl 32]} 38. Ne3 Nd6 39. Bb6 a4 40. Ncd5 (40. Nc2 $17 {keeps fighting.}) 40... Ke6 41. Nf4+ Kd7 42. Nh3 Rh5 43. Kg2 g5 44. Nd5 {[#]} (44. Ng1 $17 {might work better.}) 44... Rh6 $1 $19 45. Bd4 Ne8 ({Black should play} 45... Ne4 $19 46. Ng1 f5) 46. Be3 (46. a3 $17) 46... Ke6 47. Nb4 Nd6 48. Nc2 Kd5 49. Nb4+ Ke6 50. Nc2 $1 Rh8 51. Nd4+ Kd5 52. a3 Rb8 53. Kf3 Ne4 54. Ng1 Nc5 55. Nc2 {Strongly threatening Nb4+.} Nd3 56. Nb4+ (56. Ne2 $17) 56... Nxb4 57. axb4 $2 (57. cxb4 Rh8 58. Bb6) 57... Rh8 {Black is clearly winning.} 58. Ne2 Rh3+ 59. Ng3 {[#]} Rxg3+ $1 {[%mdl 512]} 60. Kxg3 Ke5 $2 {[%mdl 32768] Accuracy: White = 64%, Black = 78%. . Sensor Board Error (Ke4/e5)?} (60... Ke4 $19 61. Bd4 Kd3) 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.33"]
[White "Puranik, Abhimanyu"]
[Black "Nikitenko, Mihail"]
[Result "1/2-1/2"]
[ECO "C02"]
[WhiteElo "2597"]
[BlackElo "2440"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,87,-11,15,22,7,24,0,15,14,4,-11,0,6,17,25,19,6,0,16,30,62,0,0,0,0,0,0,-25,0,0,0,0,0,0,57,0,0,0,0,0,41,0,0,0,62,57,66,41,60,11,166,164,156,11,42,72,161,146,160,169,152,0,0,0,0,-44,-57,-78,0,0,0,0,0,0,0,0,0,0]} 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Nc6 6. a3 Nh6 7. b4 {C02: French: Advance Variation.} cxd4 8. b5 (8. cxd4 {feels hotter.} Nf5 9. Bb2 Bd7 10. g4 Nfe7 11. Nc3) 8... Na5 9. Bxh6 gxh6 10. cxd4 Bd7 11. Nbd2 Rc8 12. a4 Bb4 13. Bd3 Bc3 14. Rc1 {[#]} Ke7 $146 ({Predecessor:} 14... Kd8 15. O-O Bxd4 16. Nb1 Bc5 17. Rc3 Bf8 18. Qd2 Rxc3 19. Nxc3 Nb3 20. Qf4 Ke8 {0-1 (50) Morawietz,D (2420)-Van den Doel,E (2593) Germany 2018}) 15. O-O Bxd4 16. Rb1 (16. Nb1 $14) 16... Rc3 $11 17. Nb3 Nxb3 18. Rxb3 Rhc8 19. Rb1 Ra3 20. Qd2 Bc5 21. Bxh7 Rxa4 22. Qxh6 Be8 (22... Qd8 $11) 23. Bd3 (23. h4 $14) 23... Ra2 24. Qh4+ Kd7 25. Qg3 Bf8 26. Qg8 Bc5 {[%cal Ra2f2]} 27. Qg3 $1 Bf8 28. h4 $1 Rc3 29. Rbd1 $1 Bh6 30. Ng5 {Ne4! is the strong threat.} Raa3 $2 (30... Qd4 $1 $11) 31. Nh7 $1 $18 {[%cal Rh7f6] aiming for Nf6+.} Kd8 {Hoping for ...Qd4.} 32. Nf6 (32. Qf3 $1 $16 {[%cal Rf3f6]} Rxd3 33. Qf6+ Kc7 34. Qxh6 Rxd1 35. Rxd1) 32... Qc5 $1 $11 33. h5 ({Much weaker is} 33. Qg8 Qf8 $17) 33... Qf8 (33... Rxd3 $16 34. Rxd3 Rxd3 35. Qxd3 Bxb5) 34. Ng4 Bg5 35. f4 $1 {[%cal Rf4g5]} Be7 36. Rf3 $2 (36. h6 $1 $16) 36... f5 $1 $36 {[%mdl 2048] Black has the initiative.} 37. exf6 $1 Bc5+ 38. Kh1 {Threatens to win with h6.} Bxh5 39. f5 {Threatening mate with Qb8+.} Bxg4 (39... Bd6 $17 40. Qh4 Bxg4 41. Qxg4 {[#]} Rc1 $1 {[%mdl 576] Decoy} 42. Rxc1 Qh6+ {[%mdl 64] Double Attack} 43. Qh3 Qxc1+ 44. Rf1 Qxf1+ $1 {[%mdl 512]} 45. Bxf1 Rxh3+ 46. gxh3 e5) 40. Qb8+ {[%mdl 64] [#] Double Attack. The position is equal.} Kd7 $1 41. Qxb7+ Kd8 $1 42. Qb8+ {[#]} Kd7 $1 43. Qb7+ Kd8 $1 44. Qb8+ {Accuracy: White = 79%, Black = 75%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.34"]
[White "Sreeshwan Maralakshikari"]
[Black "Salgado Lopez, Ivan"]
[Result "1/2-1/2"]
[ECO "E43"]
[WhiteElo "2440"]
[BlackElo "2597"]
[Annotator "TA"]
[PlyCount "36"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,36,2,0,15,19,12,14,12,-23,-11,-26,6,7,3,5,13,-16,16,3,93,95,78,83,92,81,98,106,107]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 Bxc3+ {E43: Nimzo-Indian: Rubinstein: 4...b6.} 7. bxc3 O-O 8. O-O Re8 {The position is equal.} 9. Qc2 {[#]} Bxf3 $146 ({Predecessor:} 9... d6 10. Ng5 h6 11. Ne4 Nxe4 12. Bxe4 Bxe4 13. Qxe4 Nd7 14. Qc6 Nf6 15. f3 Qd7 16. Qxd7 Nxd7 {½-½ (28) Glembek,B (2069)-Mende,I (2241) ICCF email 2005}) 10. gxf3 d6 11. f4 Nbd7 12. f3 e5 13. Qg2 Qe7 14. e4 Nh5 (14... c5 $11 {remains equal.}) 15. fxe5 $16 {White is better.} dxe5 {[#]} 16. f4 $1 {[%cal Rf4e5]} Nxf4 17. Bxf4 exf4 18. Rxf4 Rad8 {Accuracy: White = 76%, Black = 66%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.35"]
[White "Sargsyan, Shant"]
[Black "Kardashevskiy, Evgeny"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2594"]
[BlackElo "2437"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,97,22,20,29,20,60,55,62,41,71,26,43,29,44,35,38,41,51,43,39,35,66,59,125,112,133,127,99,106,119,102,105,105,105,105,102,89,110,117,107,110,106,81,131,128,127,126,127,112,156,167,160,160,170,171,211,143,316,318,355,352,342,347,500,486,503,483,439,413,516,515,555,544,838,880,857,821,874,865,855,822,29987,29988]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 {[%cal Bb8d7,Bd7f8,Bf8e6][%mdl 32]} 5. Qc2 Be7 6. cxd5 exd5 7. Bf4 c6 8. h3 Nf8 {is recently more successful than 8...0-0.} 9. e3 Ne6 {D35: Queen's Gambit Declined: Exchange Variation.} 10. Be5 Bd6 11. Bd3 Bxe5 {White is slightly better.} 12. Nxe5 {[#]} g6 $146 ({Predecessor:} 12... O-O 13. O-O-O c5 14. dxc5 Nxc5 15. g4 Be6 16. Kb1 Rc8 17. f3 Qc7 18. Qh2 Qa5 {1-0 (38) Iturrizaga Bonelli,E (2645)-Georgescu,T (2468) Skopje 2014}) 13. O-O O-O 14. b4 Qe7 15. Rab1 Ng7 16. Na4 Ne4 17. b5 f6 18. Nf3 $36 {[%mdl 2048] Black is under pressure.} Bd7 19. bxc6 bxc6 ({Black should try} 19... Bxc6 $14 20. Rfc1 Rac8) 20. Bxe4 $16 Qxe4 21. Qxe4 dxe4 22. Nd2 f5 23. Nc5 Be6 24. Nxe6 Nxe6 25. Rfc1 Rac8 26. Rc2 Rfd8 27. Rbc1 Rd6 28. Nb3 Kf8 29. Na5 Nd8 30. Rc5 Rb8 31. g4 f4 32. g5 Rd5 33. Nxc6 Rxc5 34. Rxc5 {[%mdl 4096] Endgame KRN-KRN} Rb1+ 35. Kg2 f3+ {[#]} 36. Kh2 $1 Nf7 $2 {Black cannot hold the game after this.} (36... Ne6 $16) 37. Ne5 $18 {And now Rc8+ would win.} ({Not} 37. Nxa7 h6 $16) 37... Nd6 38. Rc6 Nf5 39. Ng4 a5 (39... Rb7 $142 40. Ra6 Rc7) 40. Ra6 Rb5 41. Ra8+ Kf7 42. Ra7+ Kf8 43. a4 Rb2 44. Rxa5 Nxe3 45. Nxe3 Rxf2+ 46. Kg3 Re2 47. Kf4 f2 48. Ra6 Rxe3 49. Rf6+ {Accuracy: White = 94%, Black = 50%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.36"]
[White "Vignesh N R"]
[Black "Cordova, Emilio"]
[Result "0-1"]
[ECO "B67"]
[WhiteElo "2436"]
[BlackElo "2593"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,92,37,38,22,28,39,41,37,46,21,31,41,32,11,38,0,0,-10,0,0,0,-54,0,-33,-41,-134,-133,-154,-143,-147,-147,-144,-102,-141,-148,-150,-129,-137,-137,-132,-136,-122,-122,-118,-59,-110,-35,-35,-35,-35,-35,-35,-35,-35,-36,-27,-10,-5,-7,-440,-401,-472,-472,-472,-472,-568,-550,-839,-839,-811,-801,-29984,-29985]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f3 Be7 10. h4 b5 11. Nxc6 Bxc6 12. Ne2 {B67: Sicilian: Richter-Rauzer: 7...a6 8 0-0-0 Bd7, lines without 9 f4 Be7.} Rc8 13. Nd4 Bb7 14. Kb1 {White is slightly better.} h6 15. Be3 Nd7 16. g4 Ne5 17. Be2 Qc7 18. g5 {[%cal Rg5h6]} h5 $1 19. Rhg1 g6 $1 {[#]} 20. Bf4 $146 ({Predecessor:} 20. Bf2 O-O 21. b3 {½-½ (21) Hernandez,J (2066)-Lloyd,G (2166) ICCF email 2007}) 20... O-O 21. Qe1 (21. c3 $11) 21... Rfd8 (21... Nd7 $15 22. Bd2 e5) 22. Bg3 (22. Bd2 $5 {[%cal Rd2a5]}) 22... Bf8 23. f4 (23. c3 $15) 23... Nc4 $17 24. Bd3 Bg7 25. Bf2 e5 26. fxe5 Bxe5 ({Don't take} 26... dxe5 27. Nf3 $15) 27. c3 Re8 28. Qe2 d5 29. Bxc4 dxc4 ({Resist} 29... bxc4 30. Nf3 $15) 30. Nf3 Bg7 31. e5 Qc6 32. Rg3 a5 (32... Re7 $17 33. Ka1 Rce8) 33. Re1 (33. Bd4 $15) 33... Qd5 (33... Qd7 $17 34. Bd4 Qf5+ 35. Ka1 Qf4) 34. Bd4 $1 $15 Qd7 35. Nd2 Qf5+ 36. Kc1 b4 37. Rf1 Qe6 {[%cal Rg7e5]} 38. Re3 a4 39. cxb4 c3 {[%mdl 64] [#] Discovered Attack} 40. Bxc3 $2 {[%mdl 8192] White does not recover from this.} (40. bxc3 $11 {and White is okay.} Red8 41. Rf4) 40... Qxa2 $19 {Threatens to win with ...a3.} 41. e6 Bxc3 42. Rxc3 ({Don't go for} 42. exf7+ $2 {[#]} Kh7 $1 {[%mdl 512]}) 42... Rxe6 {( -> ...Rxc3+)} 43. Qd3 Rec6 {White must now prevent ...a3.} 44. b5 Rxc3+ 45. bxc3 a3 {Hoping for ...Qb2+.} 46. Qc2 Qa1+ {[%mdl 64] Double Attack. Accuracy: White = 56%, Black = 85%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.37"]
[White "Aleksandrov, Aleksej"]
[Black "Zarubitski, Viachaslau"]
[Result "1/2-1/2"]
[ECO "A11"]
[WhiteElo "2592"]
[BlackElo "2432"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,87,18,50,22,41,31,27,8,22,3,8,-8,-8,-7,-17,-8,-17,0,-8,0,0,0,4,12,12,-5,-4,-72,-55,-57,-41,-92,-16,-57,-53,-37,-29,-36,-25,-55,0,0,0,0,0,-6,0,0,6,4,6,6,6,6,6,8,9,12,13,0,20,22,23,14,47,41,41,0,0,0,8,8,8,2,0,0]} 1. c4 c6 2. Nf3 Nf6 3. Nc3 d5 4. e3 g6 5. d4 Bg7 6. Be2 O-O 7. O-O Ne4 8. a4 {D94: Grünfeld: 4 Nf3 Bg7 5 e3.} Bf5 9. a5 dxc4 10. Bxc4 {White has an edge.} c5 {[#]} 11. Nxe4 $146 ({Predecessor:} 11. Bd3 Nxc3 12. bxc3 Bxd3 13. Qxd3 Nc6 14. Qb5 cxd4 15. Qxb7 Nxa5 16. Qb4 Nc6 17. Qa4 {1-0 (32) Claridge,J (2184)-Steel,A (1940) ICCF email 2013}) 11... Bxe4 12. d5 Nd7 13. Nd2 Ne5 14. Nxe4 {[#] Hoping for Be2.} Nxc4 15. Nxc5 Nxa5 16. e4 Rc8 17. Nd3 a6 18. Ra4 e6 19. dxe6 fxe6 20. e5 (20. h4 $11 {remains equal.}) 20... Qd5 $17 21. Qe2 Nc6 22. h4 ({Better is} 22. Nf4 $15 Nd4 23. Rxd4 {[%mdl 64] Remove Defender, Decoy} Qxd4 24. Nxe6 Qxe5 25. Qxe5 Bxe5 26. Nxf8 Kxf8 27. b3) 22... Nxe5 ({Black should try} 22... Nd4 $17 23. Qg4 Nb3) 23. Nf4 Qb3 24. Qe4 Nc4 25. Qxe6+ Kh8 26. Ra3 Qc2 ({Black should play} 26... Qb4 $1 $15 27. Rd3 Ne5) 27. Rd3 $11 Ne5 ({Don't go for} 27... Bxb2 $2 28. Rd7 $18) 28. Rdd1 Rce8 29. Qh3 Qe4 30. Qg3 Nc6 $132 {[%mdl 2048] Black is not keeping still} 31. h5 Nd4 32. hxg6 {With the idea Qh2!} Rxf4 $1 33. Rxd4 $1 Bxd4 34. Bxf4 Qxg6 35. Qb3 Qe4 36. Bg3 Qc6 37. Rd1 Bg7 38. Bf4 Qe4 39. Be3 b5 40. Qf7 Rf8 {The position is equal.} 41. Qb3 Qc4 42. Qxc4 bxc4 43. Bd4 Rb8 44. Bxg7+ {Accuracy: White = 82%, Black = 88%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.38"]
[White "Lazavik, Denis"]
[Black "Vaibhav, Suri"]
[Result "1/2-1/2"]
[ECO "D38"]
[WhiteElo "2428"]
[BlackElo "2591"]
[Annotator "TA"]
[PlyCount "38"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,38,13,10,24,6,2,8,2,0,0,0,0,0,0,0,0,0,0,-6,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 h6 6. Bxf6 Qxf6 7. e3 O-O 8. Rc1 dxc4 9. Bxc4 c5 10. O-O cxd4 11. Nxd4 Bd7 {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} 12. Qb3 Nc6 {The position is equal.} 13. Nxc6 Bxc3 $1 14. Rxc3 Bxc6 15. Bb5 Bd5 16. Bc4 Bc6 17. Bb5 Bd5 18. Bc4 Bc6 19. Bb5 Bd5 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.39"]
[White "Shubin, Kirill"]
[Black "Wagner, Dennis"]
[Result "0-1"]
[ECO "C89"]
[WhiteElo "2427"]
[BlackElo "2590"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,60,0,0,0,0,12,9,0,0,0,0,0,0,-2,0,0,0,-31,-18,-58,-52,-143,-143,-239,-216,-256,-222,-374,-285,-473,-475,-604,-543,-589,-569,-869,-577,-822,-819,-810,-778,-773,-770,-1192,-1163]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. d4 exd4 10. e5 {C89: Closed Ruy Lopez: Marshall Attack.} Ne4 $1 11. cxd4 Bf5 12. Nc3 {The position is equal.} Nxc3 13. bxc3 Na5 14. Bc2 Bxc2 15. Qxc2 Nc4 16. a4 c6 {[#]} 17. Qf5 $146 ({Predecessor:} 17. Nd2 c5 18. Nf3 b4 19. dxc5 bxc3 20. Qxc3 Bxc5 21. Qd3 h6 22. Bd2 Qd7 23. Bc3 {½-½ (35) Mannermaa,J (2459)-Hill,G (2410) ICCF email 2016}) 17... Qc8 18. Qh5 a5 19. g4 (19. Nd2 $15) 19... b4 $36 {[%mdl 2048] White is under strong pressure.} 20. Ng5 (20. Nd2 $17) 20... h6 21. Nh3 bxc3 22. Ra2 $2 {[#]} (22. Nf4 {was necessary.}) 22... c5 23. Nf4 $2 (23. Rae2 {is a better defense.} g6 24. Qxh6 Qxg4+ {[%mdl 64] Double Attack} 25. Kh1) 23... cxd4 $19 {Black is clearly winning.} 24. Nxd5 Qd7 25. Nxe7+ Qxe7 26. Re4 Rfd8 27. g5 d3 {And now ...d2 would win.} 28. Rxc4 d2 29. Bxd2 cxd2 30. Qd1 Qxe5 {Accuracy: White = 23%, Black = 81%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.40"]
[White "Shimanov, Aleksandr"]
[Black "Pranesh M"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2587"]
[BlackElo "2425"]
[Annotator "TA"]
[PlyCount "125"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,125,0,18,16,16,16,16,9,9,9,16,16,19,16,16,13,7,15,8,13,9,0,0,0,9,11,3,1,59,60,220,218,212,189,231,219,236,222,242,244,252,236,234,237,579,587,615,591,616,642,679,668,5025,665,664,649,615,338,635,264,267,202,213,212,203,204,209,188,193,158,218,214,168,0,0,0,0,0,0,0,3,-3,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-8,-29992]} 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. e3 Nbd7 5. b3 a6 6. Bb2 {A17: English Opening: 1...Nf6 with ...Bb4.} b6 7. cxd5 exd5 8. g3 Bb7 9. Bg2 Bd6 10. O-O O-O 11. Rc1 Re8 12. Ne2 Rc8 13. d4 a5 14. Nf4 Ne4 15. Qc2 Qe7 16. Rfd1 c5 17. dxc5 Bxc5 18. Qe2 Ndf6 ({Black should play} 18... Nxf2 $1 $11 19. Rxc5 (19. Kxf2 $2 Qxe3+ 20. Qxe3 Bxe3+ {[%mdl 64] Discovered Attack} 21. Kf1 Ba6+ 22. Nd3 Bxc1 $19 {[%mdl 64] Pin}) (19. Nxd5 Bxd5 20. Rxd5 Ng4 $17) 19... Nxd1 20. Rxc8 Rxc8 21. Qxd1 Qxe3+ 22. Kh1 Nf6) 19. Nd4 $14 Ba3 $2 (19... g6 $14) 20. Nf5 $18 Qf8 {[#]} 21. Rxc8 $1 Bxc8 {[#]} 22. Nxg7 $1 Qxg7 23. Bxa3 {aiming for Bb2.} Bg4 24. f3 Nc3 25. Qd3 Nxd1 26. Qxd1 Rxe3 $2 (26... Nh5 {is more resistant.}) 27. fxg4 Qxg4 28. Qd2 d4 {Black hopes to continue with ...Ne4.} 29. Bb2 Ne4 30. Qxd4 {[%csl Gb2][%cal Rd4h8][%mdl 64] Double Attack} Re1+ 31. Bf1 {[%csl Gb2][%cal Rd4h8]} f6 32. Kg2 Qd1 {intending ...Qc2+.} 33. Bc4+ Kg7 $2 (33... Kf8 34. h4 Qc2+ 35. Kf3 Nd2+ 36. Kg4 h5+ {[%mdl 64] Decoy} 37. Kxh5 Qh7+ 38. Kg4 f5+ 39. Kh3 Rh1+ 40. Kg2 Rh2+ {[%mdl 64] Decoy} 41. Kxh2 Nf3+ 42. Kh3 Nxd4 43. Bxd4 Ke8) 34. Qxd1 (34. Bd3 $142 a4 35. Qd7+ Kh6 36. Qh3+ Kg7 37. Qf5 Rg1+ 38. Kh3 Rxg3+ 39. Kh4 (39. hxg3 $2 {gets mated.} Qh1+ 40. Kg4 Nf2#) 39... Rxd3 40. Qxe4 {[%mdl 64] Double Attack}) 34... Rxd1 35. Kf3 Nd2+ 36. Ke2 Rb1 37. Bd4 ({Much less strong is} 37. Kxd2 $6 Rxb2+ 38. Ke3 Rxa2 $14) 37... Nxc4 38. bxc4 Kf7 39. Kd2 Rb4 (39... b5 $16) 40. Kd3 Ra4 41. Bb2 $2 ({White should try} 41. Bxb6 $18 Ra3+ 42. Kc2) 41... Rxa2 $11 {The position is equal.} 42. Kc3 a4 {[%cal Ba5a4,Ba4a3][%mdl 32]} 43. Nd3 a3 44. Bc1 h5 45. h4 Ke8 46. Kb4 {And now Nf4 would win.} Rg2 47. Bxa3 Rxg3 48. Nf4 Rg4 49. Nxh5 Kf7 50. Bb2 f5 51. Be5 {Nf4 is the strong threat.} Rxh4 52. Nf4 {Threatens to win with Kb5.} Rh1 $1 53. Bc7 Rb1+ 54. Kc3 Rc1+ 55. Kb4 Rb1+ 56. Kc3 Rc1+ 57. Kd4 b5 {[%cal Bb6b5,Bb5b4,Bb4b3,Bb3b2][%mdl 32]} 58. c5 b4 59. Be5 b3 {Strongly threatening ...b2.} 60. Kd5 Rc2 61. Nd3 f4 62. Bxf4 {With the idea Be5.} b2 63. Ke4 $2 {[%mdl 40960] Quite a comeback for Black. Accuracy: White = 85%, Black = 77%. . An unexpected result.} (63. Nxb2 $11 Rxb2 64. Kd6) 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.41"]
[White "Petrosyan, Manuel"]
[Black "Aditya Mittal"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2590"]
[BlackElo "2427"]
[Annotator "TA"]
[PlyCount "213"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,212,31,33,26,39,26,39,29,34,27,25,22,11,21,28,0,17,8,60,43,31,42,35,48,60,57,48,35,66,31,31,31,103,48,45,37,48,57,69,18,12,0,0,-4,0,0,0,0,0,0,163,163,163,163,163,163,163,163,163,152,152,152,152,152,170,152,170,163,163,163,164,164,188,188,188,143,146,146,156,143,145,136,136,147,160,146,197,196,253,253,391,231,400,400,400,239,239,239,239,239,263,232,232,232,232,197,232,232,239,239,239,239,239,239,239,239,239,231,231,231,231,231,231,49,231,48,48,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,41,0,41,41,41,0,41,41,41,41,41,0,41,41,41,0,41,0,41,41,41,0,41,0,41,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 dxc4 5. Bg2 a6 6. O-O Nc6 7. Bg5 {E04: Open Catalan: 5 Nf3.} h6 8. Bxf6 Qxf6 9. Nc3 {White is slightly better.} Rb8 10. e3 b5 11. a4 Bd6 12. axb5 axb5 13. b3 cxb3 14. Qxb3 {[#]} b4 $146 (14... O-O $11) ({Predecessor:} 14... Bd7 15. Nxb5 O-O 16. Qc4 Nb4 17. Nc3 Rfc8 18. Rfc1 Qd8 19. Ne5 Be8 20. Bc6 Bxe5 21. Bxe8 Qxe8 22. dxe5 Qd7 23. Rd1 Qc6 24. Qxc6 Nxc6 25. f4 {½-½ (25) Petrov,M (2365)-Kloster,J (2399) GER email 2014}) 15. Nd2 $14 {[%mdl 1024] White has compensation.} Bd7 16. Nce4 Qd8 $1 17. Rfc1 Ne7 {[%cal Bc6e7,Be7c8,Bc8d6,Bd6b7,Bb7a5,Ba5b3][%mdl 32]} 18. Nc4 Nc8 19. Nc5 O-O 20. Nb7 Qe7 21. Ra5 c6 (21... Re8 $14) 22. Nc5 (22. Nbxd6 $16 Nxd6 23. Ne5) 22... Bxc5 23. Rxc5 Nd6 24. Ne5 Nb7 25. Nxd7 ({Wrong is} 25. Nxc6 $2 Bxc6 26. Bxc6 Nxc5 $19) ({White should try} 25. R5c2 $1 $14) 25... Qxd7 $11 26. Re5 c5 27. dxc5 Na5 28. Qb2 Qd3 {Hoping for ...Nc4.} 29. Re4 Nb3 30. Rg4 {[%csl Gg4][%cal Rb2g7]} f6 $2 {[#]} (30... g6 $11 31. Bf1 Qd5) 31. Bf1 $1 $36 {[%cal Rf1d3][%mdl 2048] Keeping Black busy.} Nxc1 32. Bxd3 Nxd3 33. Qb1 Nxc5 {White should prevent ...b3.} 34. Rxb4 Nd7 35. Qb3 Rxb4 36. Qxb4 $16 {[%mdl 4096] Endgame KQ-KRN} Rf7 37. h4 Nf8 38. g4 Rd7 39. h5 Kf7 40. f4 Re7 41. Kg2 e5 42. Qc4+ Ke8 43. g5 hxg5 44. fxg5 fxg5 45. Kg3 Re6 46. Kg4 Rf6 47. Kxg5 Ne6+ 48. Kg4 Kf8 (48... Kf7 $16 49. Qe4 Rf2 50. Qxe5 Rg2+ 51. Kh4 Rg1) 49. Qd5 $18 Kg8 (49... Kf7 $142 50. Qd7+ Kf8) 50. Qxe5 Kh7 (50... Kf7 $142 51. e4 Ke7) 51. Qe4+ (51. Qd6 $142) 51... Kh8 $2 (51... g6 52. hxg6+ Kh6) 52. Qd3 Kg8 53. e4 (53. Qd7 $142) 53... g6 54. hxg6 Rxg6+ 55. Kf5 Kh7 56. Qh3+ Kg7 57. Ke5 Nf8 58. Qc3 Kf7 59. Qb3+ Kg7 60. Qb7+ Kg8 61. Kf5 Rg7 62. Qd5+ Rf7+ 63. Kg5 Kg7 64. Qd4+ Kg8 65. Qc4 Kg7 66. Qc6 Nh7+ 67. Kh4 $2 (67. Kg4 $18) 67... Nf8 $2 ({Better is} 67... Re7 $1 $14 68. Qc3+ Kg6) 68. Kh5 $2 (68. Qc3+ $18 Rf6 69. Qc7+ Kh6 70. Kg4) 68... Re7 $1 $14 69. Qh6+ Kf7 70. Qf4+ Ke8 71. Qb8+ Kf7 72. Qb3+ Ke8 73. Qb5+ Nd7 74. Qc4 {[#] And now Kg5 would win.} Re5+ 75. Kh4 Ke7 76. Kg3 Rg5+ 77. Kf4 Re5 78. Qb4+ Ke8 79. Qd6 Kd8 80. Qg6 Rc5 81. Qg7 Ke8 82. Ke3 Re5 83. Kd4 {aiming for Qh6.} Rc5 84. Qh8+ Ke7 85. Qh7+ Ke8 86. Qg7 Kd8 87. Qf7 Kc7 88. Qg8 {Threatens to win with Ke3.} Ra5 89. Qc4+ Kd8 90. Qg8+ (90. e5 $5 Rxe5 91. Qg8+ Ke7 92. Qh7+ Kd6 93. Qf7 $16) 90... Kc7 91. Qg3+ Kc8 92. Qc3+ Rc5 93. Qa3 Kd8 94. Qa8+ Kc7 95. Qg8 Ra5 96. Qg3+ (96. e5 {is more complex.} Nxe5 97. Qg7+ Kc8 98. Qh8+ Kc7 99. Qe8) 96... Kc8 97. Qh3 {Qh2 is the strong threat.} Rc5 98. Qa3 {Strongly threatening Qg3.} Kd8 99. Qb4 {Black must now prevent Qa3.} (99. e5 $5 Rxe5 100. Qd6 $16) 99... Kc8 100. Qxc5+ Nxc5 {The position is equal.} 101. Kxc5 {KP-K} Kc7 102. Kd5 {Threatening mate with Ke6.} Kd7 103. e5 Ke7 104. e6 Ke8 105. Kd6 {White threatens e7 and mate.} Kd8 106. e7+ Ke8 107. Ke6 {Blacks defense is rewarded with a draw. Accuracy: White = 78%, Black = 80%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.19"]
[Round "1.42"]
[White "Mendonca, Leon Luke"]
[Black "Idani, Pouya"]
[Result "1/2-1/2"]
[ECO "E40"]
[WhiteElo "2418"]
[BlackElo "2577"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,71,2,1,0,16,16,16,16,16,16,17,16,21,22,18,16,20,19,20,21,47,46,37,49,56,20,25,16,34,19,21,21,34,14,19,10,21,16,24,12,37,0,42,45,41,36,54,35,131,0,0,0,0,0,13,10,12,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Nf3 O-O 6. Bd2 Nbd7 7. Rc1 $1 {[%mdl 4] is more profitable than 7.Bd3 at the moment. Played by Pentala Harikrishna in November 2019. E51: Nimzo-Indian: Rubinstein: 4...0-0 5 Nf3 d5.} Re8 8. Qb3 Bxc3 9. Bxc3 {[#]} b6 $146 ({Predecessor:} 9... c6 10. Be2 Ne4 11. O-O Qb6 12. Qc2 Ndf6 13. Be1 Bd7 14. Ne5 Qd8 15. c5 h6 {1-0 (29) Sandipan,C (2555)-Schoen,R (1982) Tegernsee 2017}) 10. cxd5 exd5 11. Bb5 Bb7 12. O-O a6 13. Bd3 a5 14. Qc2 Ne4 15. b3 Ba6 16. Bxa6 Rxa6 17. Bb2 Ra7 18. Rcd1 f6 19. Ne1 Nf8 20. Nd3 Qd7 21. Rfe1 Ng6 22. f3 Ng5 23. a4 Raa8 24. Rc1 $36 {[%mdl 2048] White fights for an advantage.} Rac8 25. Qc6 Qf7 26. Ba3 h5 27. Kf2 h4 28. h3 Ne7 29. Qd7 Qe6 {[#]} (29... Ne6 $1 $14) 30. Qxe6+ ({Of course not} 30. Rxc7 $6 Qxd7 31. Rxd7 Rc2+ 32. Kg1 Nf5 $11) ({Better is} 30. Qb5 $1 $16) 30... Nxe6 $11 {The position is equal.} 31. Bxe7 (31. b4 {keeps more tension.} axb4 32. Bxb4 Ra8 33. Ra1 Kf7 34. a5) 31... Rxe7 32. Rc6 Nd8 33. Rc2 Ne6 34. Rc6 Nd8 35. Rc3 Ne6 36. Rc6 {Accuracy: White = 88%, Black = 83%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.1"]
[White "Can, Emre"]
[Black "Artemiev, Vladislav"]
[Result "1/2-1/2"]
[ECO "D97"]
[WhiteElo "2600"]
[BlackElo "2728"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,100,43,47,46,43,43,46,51,59,65,93,60,63,50,49,33,41,10,21,24,31,30,33,18,33,0,21,12,18,0,0,0,10,10,18,6,5,11,50,44,208,0,-2,-7,0,0,0,0,0,0,0,-11,0,0,0,0,0,-34,-41,-43,-43,-43,-43,-38,-17,-21,-22,-12,-16,-10,0,0,0,0,0,-14,-27,-29,0,-8,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c6 8. Be2 b5 9. Qb3 Qa5 $1 {9...Qa5 is better than 9...a5.} 10. e5 {D97: Grünfeld: Russian System: 7 e4, replies other than 7...Bg4.} Be6 11. Qc2 Nd5 12. Bd2 {White is slightly better.} Nxc3 {[#]} 13. bxc3 $146 ({Predecessor:} 13. Bxc3 b4 14. Bd2 Qb6 15. Bc4 Bg4 16. Qe4 Bxf3 17. gxf3 Nd7 18. h4 c5 19. h5 cxd4 {1-0 (28) Fine,R-Jonsson,E Gothenburg 1937}) 13... Bc4 14. Bxc4 bxc4 15. h4 Qd5 16. h5 c5 17. hxg6 hxg6 18. Rh4 cxd4 19. cxd4 Nd7 20. Ke2 Rab8 {[%cal Ba8b8,Bb8b6,Bb6a6,Ba6a3][%mdl 32]} 21. Bc3 Rfd8 22. Rah1 Nf8 23. Ng5 Rb6 24. R1h3 Ra6 25. Kf1 Rb8 26. Re3 Qb5 27. Re1 Ra3 28. Rh3 Qa4 $2 {[#]} (28... Qd5 $14) 29. Re2 $2 ({Better is} 29. Qc1 $18) 29... Qxc2 $11 30. Rxc2 f6 31. Ne4 Ne6 32. Re3 fxe5 33. dxe5 Nf4 34. Bd2 Rb1+ 35. Re1 $1 {[%cal Re1b1]} Rxe1+ 36. Bxe1 Bxe5 37. Bb4 (37. Nd2 $5 {[%cal Rd2c4]} Rc3 38. Rxc3 Bxc3 39. Nxc4 Bxe1 40. Kxe1 $11) 37... Rd3 {[#] ...Rd1+ is the strong threat.} 38. Bd2 Rd4 39. f3 Nd5 40. Ke2 Bf4 41. Bxf4 Nxf4+ {[%mdl 4096] Endgame KRN-KRN} 42. Ke3 e5 43. Nc3 a6 44. g3 Nd3 45. f4 Nb4 46. Rc1 Rd3+ 47. Ke4 exf4 48. gxf4 {The position is equal.} Nc6 49. Na4 Ra3 50. Rxc4 a5 {Accuracy: White = 86%, Black = 89%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.2"]
[White "Sargsyan, Shant"]
[Black "Maghsoodloo, Parham"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2594"]
[BlackElo "2674"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,73,25,46,25,25,31,35,27,45,37,37,33,28,35,32,27,32,23,31,20,79,70,87,74,81,70,62,74,78,60,59,72,71,84,71,66,69,71,70,50,54,48,54,39,109,109,111,114,122,129,191,191,191,186,184,184,328,335,335,318,566,553,679,626,840,819]} 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 dxc4 5. e4 b5 6. e5 {D24: Queen's Gambit Accepted: 3 Nf3 Nf6 4 Nc3.} Nd5 7. Nxb5 Nb6 8. Be2 {White is slightly better.} Nc6 9. O-O Be7 10. Be3 O-O 11. Nc3 Rb8 {[#]} 12. b3 $5 $146 {[%mdl 8] New and interesting.} ({Predecessor:} 12. a3 Bb7 13. Qc2 Na5 14. Rad1 h6 15. Nd2 Qd7 16. f4 Nd5 17. Nxd5 Bxd5 18. Qc3 {½-½ (61) Mamedyarov,S (2801)-Caruana,F (2822) Saint Louis 2018}) 12... cxb3 13. axb3 Bb7 14. Qb1 Ra8 (14... Nb4 $11) 15. Qe4 $16 Qd7 16. Rfd1 Nd5 17. Bd3 {[%csl Gd3][%cal Re4h7]} f5 18. exf6 $1 Nxf6 19. Qh4 {aiming for Ne5.} Nb4 $1 20. Ne5 Qe8 21. Qh3 Nxd3 22. Qxe6+ Kh8 23. Rxd3 a5 24. Bg5 Bb4 25. Qxe8 Rfxe8 26. Rc1 Bxc3 (26... Ne4 $14 27. Nxe4 {[%mdl 64] Discovered Attack} Bxe4) 27. Rdxc3 Ne4 28. Rxc7 {Hoping for Nf7+.} Bd5 29. Be7 Bxb3 (29... Nd2 $16 {was called for.}) 30. f3 $18 Nf6 31. Bxf6 $1 gxf6 {[#]} 32. Nd7 $1 $36 {[%cal Rd7f6][%mdl 2048] White is really pushing.} Ra6 (32... Re6 $142 33. Rc8+ Rxc8 34. Rxc8+ Kg7) 33. Nc5 $1 {[%csl LRa6,LRb3]} Rb6 34. Rb1 Re3 $2 {[#]} (34... a4 {is a better defense.} 35. Nxa4 {[%mdl 64] Pin} Rbb8) 35. d5 $1 {[%mdl 512] White is clearly winning.} f5 (35... Bxd5 36. Rxb6) 36. Rxb3 Rexb3 37. Nxb3 {Accuracy: White = 100%, Black = 69%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.3"]
[White "Cordova, Emilio"]
[Black "Sarana, Alexey"]
[Result "1/2-1/2"]
[ECO "A49"]
[WhiteElo "2593"]
[BlackElo "2656"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,55,17,28,12,20,16,31,18,27,35,33,28,35,39,33,26,37,29,35,36,51,51,50,41,47,48,40,20,18,11,15,0,0,0,5,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 d5 5. O-O c6 6. Nbd2 O-O 7. Re1 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Bf5 8. c3 Qc8 9. Ng5 {White is slightly better.} Nbd7 10. e4 dxe4 11. Ngxe4 {[#]} Re8 $146 ({Predecessor:} 11... Nxe4 12. Nxe4 Re8 13. Bf4 Nf6 14. Nxf6+ Bxf6 {1-0 (40) Kravec,P (2180)-Sepesi,S (2189) Slovakia 2017}) 12. a4 Nxe4 13. Nxe4 Nf6 14. Nxf6+ Bxf6 15. a5 a6 16. Bf4 Be6 17. Be5 Bd5 18. Bxd5 cxd5 19. Bxf6 exf6 {The position is equal.} 20. Rxe8+ Qxe8 $14 {[%mdl 4096] Endgame KQR-KQR} 21. Qb3 Qd7 22. Re1 Kg7 23. Qb4 {[#] And now Re7 would win.} Re8 24. Rxe8 Qxe8 25. Qxb7 Qe1+ 26. Kg2 Qe4+ 27. Kg1 Qe1+ 28. Kg2 {Accuracy: White = 100%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.4"]
[White "Adhiban, B.."]
[Black "Sindarov, Javokhir"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2654"]
[BlackElo "2537"]
[Annotator "TA"]
[PlyCount "40"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,40,43,74,26,29,35,38,44,55,36,77,30,20,4,0,-49,-47,-49,-50,-46,-41,-44,-35,-45,-28,-52,-57,-116,-111,-110,-45,-53,-14]} 1. Nf3 Nf6 2. c4 g6 3. d4 c5 4. Nc3 Bg7 5. e4 d6 6. dxc5 {E90: King's Indian: Classical: Early deviations and 6 h3.} dxc5 7. Qxd8+ Kxd8 8. Bf4 {[#] White is slightly better.} Ke8 $146 ({Predecessor:} 8... Na6 9. Be2 Bg4 10. h3 Bxf3 11. Bxf3 Nd7 {½-½ (11) Pecorelli Garcia,H (2405)-Obregon Rivero,J (2309) Santiago de Cuba 2009}) 9. O-O-O Bg4 10. Nd5 {White threatens Nc7+ and mate.} Na6 11. Be5 Rg8 12. Re1 Bxf3 13. gxf3 Nh5 14. Bg3 e6 15. Nc3 Ke7 16. e5 Nb4 17. Bh4+ Kf8 18. Ne4 {[#]} (18. Bg3 $15) 18... b6 $1 $17 19. Kb1 Bxe5 {[#]} ({Black should try} 19... Nc6 $17 20. Bf6 h6) 20. Nxc5 $1 $15 {[%mdl 512] And now Nd7+ would win.} Bc7 {Accuracy: White = 68%, Black = 75%.} (20... bxc5 21. Rxe5) 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.5"]
[White "Wagner, Dennis"]
[Black "Kovalev, Vladislav"]
[Result "1/2-1/2"]
[ECO "E97"]
[WhiteElo "2590"]
[BlackElo "2650"]
[Annotator "TA"]
[PlyCount "30"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,30,47,35,70,48,85,62,93,71,115,121,149]} 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. b4 a5 10. bxa5 Rxa5 11. a4 c5 {E97: King's Indian: Classical Main Line (6...e5 7 0-0 Nc6): 8 Be3 and 8 d5 Ne7, not 9 Ne1.} 12. Bd2 $1 {[%mdl 4] is recently more successful than 12.Ra3. Played by Radoslaw Wojtaszek in October 2019.} h6 13. Bd3 {[#]} Ne8 $146 ({Predecessor:} 13... Ra6 14. Rb1 Nd7 {½-½ (14) Galvez Ponziano,R (2242)-Maliszewski,G (2250) GER email 2017}) 14. Ra3 f5 {[#]} 15. exf5 $1 Nxf5 {White took control after the opening.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.6"]
[White "Sanal, Vahap"]
[Black "Mamedov, Rauf"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "2569"]
[BlackElo "2643"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,88,14,22,14,29,37,22,10,15,8,2,0,12,0,62,62,35,-64,-72,-72,-67,-69,-17,-33,0,0,0,0,0,0,0,0,0,0,0,-279,-287,-270,-258,-259,-259,-281,-261,-262,-260,-443,-425,-424,-412,-412,-401,-316,-193,-185,-113,-252,-252,-356,-277,-337,-320,-604,-603,-590,-564,-1541,-2734,-6075,-5585,-6095,-6095]} 1. Nf3 Nf6 2. g3 g6 3. b3 Bg7 4. Bb2 b6 5. Bg2 Bb7 6. c4 c5 7. O-O O-O 8. Nc3 d6 9. d4 cxd4 10. Qxd4 {is now more promising than 10.Nxd4. Played by Vitiugov in December 2019.} Nbd7 11. Qd2 {A30: Symmetrical English: Double Fianchetto and Hedgehog.} Nc5 12. Rfd1 Rc8 {[#]} 13. Qe1 $146 {The position is equal.} ({Predecessor:} 13. Rac1 Nfe4 14. Nxe4 Nxe4 15. Qc2 Nf6 16. Qd3 Qc7 17. Ne1 Rfd8 18. e4 Nd7 19. Bxg7 Kxg7 {1-0 (72) Kurajica,B (2516)-Camacho Collados,J (2379) Linares 2016}) 13... Re8 14. Rac1 a6 15. Ba1 e5 16. Nh4 e4 (16... Nce4 $11) 17. Bh3 $1 $14 {[%cal Rh3c8]} e3 18. Bxc8 (18. f3 $14) 18... exf2+ $1 $15 19. Qxf2 Qxc8 20. Nd5 (20. Rxd6 $2 Ng4 $19) 20... Bxd5 (20... Ng4 $1 $15 21. Qf3 Bxa1 22. Rxa1 Ne4) 21. Bxf6 $11 Ne4 22. Qxb6 Bxf6 23. cxd5 {[%mdl 64] Discovered Attack} Nc3 24. Kh1 (24. Qxd6 $2 Bxh4 25. Qc6 Nxe2+ 26. Kg2 Nxc1 $19) 24... Rxe2 25. Re1 {Rxe2 is the strong threat.} (25. Qxd6 {leads to mate.} Qh3 $1 {[%mdl 512]} 26. g4 Bxh4 27. Qb8+ Kg7 $1 {[%mdl 512]} 28. Qe5+ Rxe5 29. Rxc3 Qxc3 30. Kg1 Qe3+ 31. Kh1 Qf3+ $1 {[%mdl 512]} 32. Kg1 Bf2+ 33. Kf1 Bd4#) 25... Qg4 {( -> ...Qe4+)} 26. Rxe2 Nxe2 $40 {[%mdl 128] Black mounts an attack.} 27. Rc4 $2 {[%mdl 8192]} (27. Rf1 $1 $11 {and White stays safe.} Qh3 28. Rxf6 Nxg3+ 29. Kg1 Ne2+ 30. Kh1 Ng3+ 31. Kg1 Ne2+ 32. Kh1 Ng3+) 27... Bd4 $1 $19 28. Rxd4 Nxd4 29. Qxd6 Qe4+ 30. Kg1 Qe3+ 31. Kf1 {[#]} g5 $1 {[%cal Rg5h4]} 32. Qh6 $2 (32. Qxa6 {was the only chance.} Kg7 33. Qc4 gxh4 34. gxh4) 32... Qe2+ 33. Kg1 Qe1+ 34. Kg2 Qe4+ ({Don't do} 34... gxh4 35. Qg5+ Kf8 36. Qd8+ Qe8 37. Qxe8+ Kxe8 38. gxh4 $19) 35. Kf2 Qxd5 36. Qh5 {[#]} Qa5 ({Black should play} 36... h6 $1 $19 {And now ...Qc5 would win.} 37. Nf3 Qf5) 37. Ng2 {This move loses the game for White.} (37. Qd1 $17 {was worth a try.}) 37... Qxa2+ 38. Ke3 (38. Kf1 $142 Qd2 39. Ne1) 38... Ne6 ({Stronger than} 38... Nxb3 39. Qxg5+ Kh8 40. Qf6+ Kg8 41. Qg5+ Kh8 42. Qf6+ Kg8 43. Qg5+ $11) (38... Qxb3+ 39. Kxd4 Qb2+ 40. Ke3 $11) 39. Qe2 Qxb3+ 40. Kf2 $2 (40. Kd2) 40... a5 {[%cal Ba6a5,Ba5a4,Ba4a3][%mdl 32] Black is clearly winning.} 41. Ne3 a4 42. Nf5 a3 43. Qe4 Qb2+ 44. Kf3 h5 {Accuracy: White = 49%, Black = 75%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.7"]
[White "Sethuraman, S.P."]
[Black "Sengupta, Deep"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "2641"]
[BlackElo "2534"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,103,22,25,33,27,25,27,27,25,27,18,29,26,27,29,24,14,62,66,58,12,45,43,47,50,62,62,89,62,84,102,100,78,101,95,96,66,68,51,146,110,128,110,113,104,108,104,111,100,120,100,147,100,139,139,146,133,142,145,137,139,139,120,241,198,202,181,239,237,244,247,262,286,254,267,337,383,362,341,690,686,664,654,627,606,779,764]} 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bd7 5. Nf3 Bc6 6. Bd3 Nd7 7. O-O Ngf6 8. Ng3 Be7 9. Re1 {9.Qe2 is vanishing.} O-O 10. c3 b6 {C10: French with 3 Nc3: Unusual Black 3rd moves and 3...dxe4.} 11. Qe2 Bxf3 12. Qxf3 c5 {White has an edge.} 13. dxc5 Nxc5 14. Bc2 Qd5 {[#]} 15. Qe2 $146 ({Predecessor:} 15. Qxd5 Nxd5 16. Bd2 Rfd8 17. c4 Nf6 18. Bc3 Rd7 19. Rad1 Rad8 20. Rxd7 Rxd7 21. a3 {1-0 (40) Hagarova,Z-Bracjunova,V Slovakia 1993}) 15... Rfd8 16. Be3 Rac8 17. Bd4 a5 18. Rad1 {aiming for Bxf6.} Qc6 19. Rd2 Ncd7 {[%cal Bc5d7,Bd7f8,Bf8g6,Bg6f4][%mdl 32]} 20. Red1 Nf8 21. Nf5 exf5 22. Qxe7 Ng6 23. Qa7 $36 {[%mdl 2048] White fights for an advantage.} Nf4 {[%csl Gf4][%cal Rc6g2]} 24. f3 N6d5 25. Qa6 Ra8 26. Qf1 g6 27. Bb3 a4 $1 {[%cal Ra4b3]} 28. Bc4 {Black must now prevent Be5.} a3 (28... Nc7 $14) 29. b3 {Be5 is the strong threat.} Nc7 30. Qe1 {And now Qe5 would win.} Nfe6 31. Bf6 Rxd2 32. Qxd2 b5 33. Bf1 Ne8 34. Be7 Qc7 35. Bh4 Rc8 {[#]} 36. c4 $1 bxc4 37. Bxc4 f4 38. Qd7 N8g7 39. Qxc7 Rxc7 40. g4 g5 {This costs Black the game.} (40... fxg3 $16 {was called for.} 41. Bxg3 Rc8) 41. Be1 h5 42. h3 hxg4 (42... Ne8 $142 43. gxh5 Nf6) 43. hxg4 $18 Ne8 44. Kf2 Nf6 45. Bc3 Nd7 46. Rh1 {[%csl Gc3][%cal Rh1h8]} Ng7 47. Rh6 {Hoping for Rg6.} Nc5 48. Be5 Rc8 $2 (48... Rb7 49. Bd4 Nce6) 49. Bd4 {White is clearly winning.} Nce6 50. Bxe6 {[%mdl 64] Overworked Piece} fxe6 {[#]} 51. Rg6 $1 {[%csl LRg5,LRg7][%mdl 64] Double Attack} Rc7 52. Rxg5 {Accuracy: White = 89%, Black = 63%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.8"]
[White "Durarbayli, Vasif"]
[Black "Nesterov, Arseniy"]
[Result "1/2-1/2"]
[ECO "C67"]
[WhiteElo "2625"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,91,24,0,23,2,10,-9,0,0,0,0,0,0,0,-18,0,-43,12,0,0,-8,0,0,0,0,0,0,0,-23,-19,-41,-44,-39,-42,-39,-51,-45,-29,-82,-115,-113,-85,-148,-127,-109,-109,-100,-93,-136,-31,-93,-8,-8,-8,-8,-8,0,8,-51,-60,-54,-48,-170,-7,-7,-28,0,0,-8,-8,-8,-8,-8,0,0,0,-29979]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5 8. Qxd8+ Kxd8 9. h3 {seems to push 9.Nc3 aside.} Be7 {C67: Ruy Lopez: Berlin Defence: 4 0-0 Nxe4.} 10. Rd1+ Ke8 11. Bg5 Bxg5 12. Nxg5 h6 13. Nf3 Be6 14. Nc3 Rd8 15. Kh2 {[#]} Ne7 $146 ({Predecessor:} 15... c5 16. g4 Ne7 17. Ne1 Ng6 18. Rxd8+ Kxd8 19. Nd3 h5 20. Kg3 c4 21. Nc5 h4+ {½-½ (35) Mirkowski,P (2383)-Potrata,J (2267) ICCF email 2017}) 16. g4 Nd5 (16... Ng6 $15) 17. Ne2 c5 18. Kg3 Ke7 19. a3 Nb6 20. Nc3 Rxd1 21. Rxd1 Nc4 22. a4 Rd8 23. Rxd8 Kxd8 $11 {[%mdl 4096] Endgame KBN-KNN} 24. b3 Na3 25. Ne1 a5 26. f4 g6 $1 27. Ne4 (27. Kf3 $1 $11) 27... c4 $17 28. Nd2 c5 29. h4 ({Better is} 29. bxc4 Nxc4 30. Ne4) 29... cxb3 30. cxb3 c4 31. bxc4 Nxc4 32. Ne4 Nb2 (32... Bd7 $1 $17 33. Nc5 Bc6) 33. Nd6 $15 {[#]} Bd5 ({Black should play} 33... Kc7 $1 $17 34. f5 gxf5 35. gxf5 Bb3) 34. Nc2 $11 Ke7 35. Ne3 Bc6 36. h5 Nxa4 {Hoping for ...Nc5.} 37. hxg6 (37. g5 $11 hxg5 38. h6) 37... fxg6 $15 38. Nec4 Nc3 39. f5 {[#]} (39. g5 $15 h5 40. Kh4) 39... Ne4+ $2 (39... a4 $1 $19 40. fxg6 Kf8) 40. Kf4 $132 {[%mdl 2048] White is fighting back} g5+ 41. Ke3 Nxd6 {The position is equal.} 42. exd6+ Kd7 43. Kd4 $1 {[%cal Rd4e5] Black must now prevent Ke5.} Bb5 {Strongly threatening ...Bxc4.} 44. Nxa5 Kxd6 {...b6 is the strong threat.} 45. Nxb7+ Ke7 46. Ke4 $2 {[%mdl 40960] Accuracy: White = 72%, Black = 78%. . An unexpected result.} (46. Ke5 $11) 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.9"]
[White "Visakh N R"]
[Black "Zvjaginsev, Vadim"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2518"]
[BlackElo "2623"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,56,30,15,24,20,39,27,25,20,4,28,20,18,26,25,16,0,0,0,0,0,6,0,0,0,0,0,0,0,1,-3,-3,-16,-16,-14,-10,-9,0,0,0,0,8]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Be7 7. Bd3 O-O 8. Qc2 h6 9. Bf4 c5 {D36: Queen's Gambit Declined: Exchange Variation: Main line (5 Bg5 c6 6 Qc2).} 10. dxc5 Nc6 {[#]} 11. Nge2 $146 ({Predecessor:} 11. a3 d4 12. Nb5 Nd5 13. Bg3 dxe3 14. O-O-O Kh8 15. Bc4 Be6 16. Nc7 Bg5 17. f4 Qxc7 18. fxg5 {1-0 (30) Wallinger,M (2141)-Boca,H (2105) Bayern 2002}) 11... d4 {White has an edge.} 12. Nxd4 Nxd4 13. exd4 Qxd4 {[%mdl 64] [#] Double Attack} 14. Be3 Qe5 $1 15. Ne2 Rd8 16. O-O {The position is equal.} Ng4 {[%csl Gg4][%cal Re5h2]} 17. Bf4 Qxc5 18. h3 Nf6 19. Qxc5 Bxc5 20. Rfd1 Be6 21. Be5 Rd7 22. Nf4 Rad8 {Hoping for ...Ne4!} 23. Bxf6 (23. Rdc1 {is more complex.} Bd4 24. Nxe6 fxe6 25. Bxd4 Rxd4 26. Bc4) 23... gxf6 24. Nxe6 fxe6 25. Be2 Rd2 26. Kf1 Kf8 27. Ke1 Rxd1+ 28. Rxd1 Rxd1+ {Not much happened in this game. Accuracy: White = 100%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.10"]
[White "Badelka, Olga"]
[Black "Zhou, Jianchao"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "2404"]
[BlackElo "2622"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,62,10,0,0,0,0,0,0,-23,-10,-56,-17,-17,0,-10,-15,-20,0,-26,-31,-116,-75,-102,-106,-100,-94,-110,-94,-131,-141,-141,-127,-120,-120,-192,-166,-187,-170,-219,-204,-256,-253,-274,-230,-503,-503,-532,-550,-623,-627,-862,-895,-1040,-868]} 1. c4 e6 2. Nf3 d5 3. e3 Nf6 4. b3 Be7 5. Bb2 O-O 6. Be2 dxc4 {A13: English Opening: 1...e6.} 7. bxc4 c5 8. Nc3 b6 {The position is equal.} 9. Rg1 Bb7 10. Qb1 {[#]} Nbd7 $146 (10... Nc6 {looks sharper.} 11. g4 Ne8 12. h4 Qd7 13. Ne4 f6) ({Predecessor:} 10... Ne8 11. g4 Nd6 12. Rg3 Nd7 13. Qc2 a6 14. g5 Rb8 15. Bd3 g6 16. Ne4 Bxe4 17. Bxe4 {½-½ (68) Malakhov,V (2689)-Zhou,J (2616) China 2018}) 11. g4 Ne8 12. d3 Nd6 13. Qc2 a6 14. Rd1 b5 $36 {[%mdl 2048] Black has some pressure.} 15. e4 {White is now going downhill.} ({White should try} 15. Ne4 $15) 15... Qa5 16. e5 Nc8 17. Kf1 Na7 18. a3 Rad8 19. Ne4 {[#]} Bxe4 $1 20. dxe4 Nc6 21. Kg2 b4 22. Ra1 (22. Qb3 $17 {is a better defense.}) 22... Qb6 23. Qc1 a5 24. g5 Nd4 25. Nxd4 cxd4 26. axb4 Bxb4 27. f4 $2 (27. Qf4) 27... Nc5 $19 {[%cal Bd7c5,Bc5b3,Bb3d2][%mdl 32] Black is clearly winning.} 28. Qb1 {If White can now play Bd3 this consolidates a bit.} d3 29. Bf3 Nb3 30. Ra4 Nd2 31. Qc1 {[#]} Qe3 $1 {[%mdl 576] Double Attack. Accuracy: White = 42%, Black = 91%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.11"]
[White "Yilmaz, Mustafa"]
[Black "Suleymanli, Aydin"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2607"]
[BlackElo "2474"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,57,11,12,9,29,16,12,15,2,11,8,16,18,18,18,20,15,22,13,9,18,12,13,6,6,7,7,4,8,10,14,14,13,0,0,0,9,0,4,4,3,0,0,0,0,0]} 1. d4 d5 2. c4 e6 3. Nf3 Be7 4. Nc3 Nf6 5. Bf4 O-O 6. e3 b6 7. cxd5 Nxd5 8. Nxd5 {D37: Queen's Gambit Declined: 5 Bf4.} Qxd5 9. Be2 $1 {[%mdl 4] now scores much better than the old 9.Bd3. Played by Caruana in August 2019.} Qa5+ {The position is equal.} 10. Nd2 $1 Ba6 11. O-O c5 12. Nc4 Bxc4 $1 13. Bxc4 {Threatening d5.} cxd4 14. exd4 {Black should prevent d5.} Nc6 15. d5 exd5 16. Qxd5 Qxd5 17. Bxd5 Rac8 {[#]} 18. Rac1 $146 ({Predecessor:} 18. Rfd1 Bf6 19. Rab1 Nd4 20. Kf1 Rfe8 21. g3 Rc5 22. Bg2 Ne6 23. Be3 Rc2 24. Rd7 {½-½ (42) So,W (2776)-Karjakin,S (2750) Saint Louis 2019}) 18... Nd4 {[#] Strongly threatening ...Ne2+.} 19. Bc4 Bf6 20. b3 Rfd8 21. Ba6 Rc2 22. Rxc2 Nxc2 23. Bc4 Nb4 24. a4 Nc6 25. Rb1 g6 26. Kf1 Kg7 27. Be3 Nd4 28. Rc1 Nf5 29. Ke2 {Not much happened in this game. Accuracy: White = 100%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.12"]
[White "Bharath Subramaniyam H"]
[Black "Karthikeyan, Murali"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2402"]
[BlackElo "2602"]
[Annotator "TA"]
[PlyCount "115"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,115,29,31,27,16,29,18,20,19,21,19,14,3,16,0,7,0,0,0,7,-14,-10,-7,0,8,45,53,47,29,68,68,67,68,69,65,85,2,12,0,0,0,18,2,35,0,0,0,0,0,0,0,0,-1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 Nf6 2. g3 c5 3. Bg2 Nc6 4. O-O g6 5. c4 Bg7 6. Nc3 h5 {[#] A38: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3 Nf6.} 7. e3 $146 ({Predecessor:} 7. h4 d6 8. a3 Be6 9. d3 Qd7 10. Ng5 Bg4 11. Rb1 a5 12. f3 Be6 13. e4 O-O 14. Be3 {1-0 (54) Iturrizaga Bonelli,E (2636)-Gupta,A (2588) chess.com INT 2018}) 7... d6 8. d4 O-O 9. d5 Na5 $1 10. Qe2 a6 11. e4 Bg4 12. Bf4 Nd7 13. Rac1 Ne5 14. b3 Rb8 15. Qe3 Bxf3 16. Bxf3 b5 17. cxb5 {aiming for Bxe5.} axb5 18. Be2 Qd7 19. Bh6 b4 20. Bxg7 Kxg7 21. f4 Ng4 22. Bxg4 $1 hxg4 23. Ne2 (23. Nd1 $16) 23... f5 24. exf5 Rxf5 25. Rcd1 Rh8 26. Nc3 Rhh5 27. Ne4 (27. h3 $5 Rxh3 28. Ne4 $11) 27... Rxd5 {The position is equal.} 28. Ng5 $1 Rf5 {[#]} 29. a3 $1 {[%mdl 512]} Nc6 (29... bxa3 30. Qc3+) 30. axb4 cxb4 31. Qe2 Rhxg5 32. fxg5 Ne5 33. Rxf5 Qxf5 $11 {[%mdl 4096] Endgame KQR-KQN} 34. Qe3 Qc2 35. Rf1 Kg8 36. Rf2 Qd1+ 37. Kg2 Qd5+ 38. Kg1 Nf3+ {[%mdl 64] [#] Discovered Attack} 39. Rxf3 $1 gxf3 40. Qxe7 {KQ-KQ} Qd4+ 41. Kf1 Qd1+ 42. Kf2 Qc2+ 43. Kxf3 Qxb3+ 44. Qe3 Qf7+ 45. Ke2 b3 46. Kd2 Qb7 {And now ...b2 would win.} 47. Qe6+ Kh7 {Strongly threatening ...b2.} 48. Qh3+ Kg8 {Hoping for ...b2.} 49. Kc1 Qc6+ 50. Kb2 {Qe6+ is the strong threat.} Qc2+ 51. Ka3 Qa2+ 52. Kb4 {Threatens to win with Qe6+.} b2 53. Qc8+ Kh7 54. Qc7+ Kh8 55. Qc3+ Kg8 (55... Kh7 $5 56. Qc7+ $8 {[%mdl 64] Double Attack} Kh8 57. Qc3+ Kh7 58. Qc7+ $11 {[%mdl 64] Double Attack}) 56. Qc8+ Kg7 57. Qc7+ Kh8 58. Qc3+ {Accuracy: White = 92%, Black = 93%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.13"]
[White "Sargissian, Gabriel"]
[Black "Chanda, Sandipan"]
[Result "1/2-1/2"]
[ECO "A84"]
[WhiteElo "2689"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "149"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,149,27,31,27,22,18,25,9,8,9,20,4,36,44,50,39,33,19,35,33,41,12,11,10,25,8,66,67,59,70,81,80,74,75,70,74,73,52,93,18,25,16,36,38,45,-77,-88,-97,-91,-104,-102,-96,-100,-81,-96,-97,-94,-97,0,0,0,-13,-13,-13,-11,-25,-12,-13,-13,-16,-22,-18,-32,-76,-54,-59,-44,-41,-52,-72,-83,-67,-64,-88,-78,-140,-140,-140,-140,-140,-140,-140,-140,-140,-140,-139,-140,-140,-106,-233,-140,-140,-140,-117,-102,-128,-86,-101,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 f5 2. c4 Nf6 3. Nf3 e6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. Nc3 d5 8. Bg5 c6 {[#]} 9. Qc1 $146 {A87: Dutch Defence: Leningrad System: 5 Nf3.} ({Predecessor:} 9. e3 Nbd7 10. Rc1 Qe8 11. Bf4 Ne4 12. Be5 Nxe5 13. Nxe5 Nxc3 14. Rxc3 Bxe5 15. dxe5 b6 16. cxd5 cxd5 {1-0 (49) Debashis,D (2501)-Sandipan,C (2579) Caleta 2018}) 9... Nbd7 10. Rd1 Qe8 11. Bh6 {White has an edge.} Bxh6 12. Qxh6 Qe7 13. Rac1 b6 14. Qe3 Ba6 15. cxd5 cxd5 16. Ng5 {Hoping for Nxd5!} Rae8 17. h4 Qd6 18. Bf3 Ne4 19. Kg2 Ndf6 20. Nh3 Ng4 ({Black should play} 20... Qe7 $11) 21. Bxg4 $14 fxg4 22. Nf4 Nxc3 23. Qxc3 ({Much worse is} 23. Rxc3 $6 e5 $11) 23... e5 24. dxe5 Rxe5 25. e3 Qf6 26. Kg1 Be2 27. Rd2 (27. Rxd5 $16 Rxd5 28. Qxf6 Rxf6 29. Rc8+ (29. Nxd5 Rd6 $14) 29... Kg7 30. Nxd5) 27... Bf3 $11 28. Kf1 g5 29. hxg5 Qxg5 30. Rd4 (30. Ke1 $14 {keeps the upper hand.}) 30... Qh6 $36 {[%cal Rh6h1][%mdl 2048] Black is in control.} 31. Ke1 Qh2 {( -> ...Qg1+)} 32. Qd3 {[#]} Qg1+ $1 33. Qf1 {[#]} Rxe3+ $1 {[%mdl 512]} 34. Kd2 (34. fxe3 Qxe3+) 34... Qxf1 35. Rxf1 Re5 36. Rc1 Rfe8 (36... h5 $17 37. Rc6 Be4) 37. Rd3 $11 R8e7 38. Re3 Rxe3 39. fxe3 {[%mdl 4096] Endgame KRB-KRN} Kf7 40. Rc8 Kf6 41. Rf8+ Ke5 42. Nd3+ Kd6 43. Nf4 Be4 44. Rg8 Rc7 45. Nd3 Bg6 46. Rd8+ Ke6 47. Nf4+ Ke7 48. Rxd5 Rc2+ 49. Ke1 $1 Rxb2 50. Nxg6+ (50. a4 $142) 50... hxg6 $17 {KR-KR} 51. a4 Rg2 52. Rd4 Rxg3 53. Kf2 Rf3+ 54. Ke2 Rf5 55. Rxg4 g5 56. Rd4 Ke6 57. Rd8 (57. Re4+ $17 {was called for.} Re5 58. Rb4) 57... Ra5 58. Rd4 Rd5 {Strongly threatening ...Rxd4.} 59. Rc4 Kd6 60. Kf3 a6 61. Rc8 Kd7 (61... Ra5 $17 62. Rd8+ Kc6 63. Rc8+ Kd7) 62. Rg8 $11 {The position is equal.} Kc6 63. e4 Rd3+ 64. Kg4 Rd4 65. Rg6+ Kc7 66. Rg7+ Kd6 67. Kf5 Rxa4 {aiming for ...Ra5+.} 68. e5+ Kc6 69. Rxg5 b5 70. e6 Ra1 {Threatens to win with ...Rf1+.} 71. Rg8 Kd6 {And now ...Rf1+ would win.} 72. Rd8+ Ke7 73. Rd7+ Ke8 74. Rb7 Rf1+ 75. Ke4 {Accuracy: White = 82%, Black = 87%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.14"]
[White "Sjugirov, Sanan"]
[Black "Sivuk, Vitaly"]
[Result "1-0"]
[ECO "E06"]
[WhiteElo "2674"]
[BlackElo "2557"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,101,26,27,26,17,14,34,35,42,47,59,42,41,55,81,66,95,86,108,87,116,110,116,117,117,120,110,117,114,104,130,113,120,111,144,146,138,133,143,156,166,174,166,154,164,101,164,164,166,161,195,203,205,215,343,335,321,354,379,389,449,456,464,441,417,377,378,371,735,313,293,0,768,735,747,739,1289,1225,29988,29989,29989,29990,29990,29991,29991,29992]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 c6 8. Qxc4 b5 9. Qc2 Bb7 10. Nc3 {D30: Queen's Gambit Declined: Systems without Nc3.} Nbd7 11. Ne5 Rc8 12. Rd1 {[#] White is slightly better.} Qc7 $146 ({Predecessor:} 12... Bd6 13. Be3 Ba6 14. Bg5 Re8 15. Nxd7 Qxd7 16. Bxf6 gxf6 17. Ne4 c5 18. Nxc5 {½-½ (18) Efimenko,Z (2632)-Enchev,I (2492) Wunsiedel 2018}) 13. Nxd7 Nxd7 14. Bf4 Qb6 $1 15. Be3 $36 {[%mdl 2048] White has some pressure.} Qa6 16. Ne4 Rfd8 17. a3 h6 18. Rac1 Qa5 19. Bd2 Qc7 20. Bf4 Qb6 21. Nd6 Bxd6 22. Bxd6 a5 23. b3 {[%cal Bb2b3,Bb3b4][%mdl 32]} Qa6 24. e3 a4 25. b4 Nb6 26. Bc5 Nc4 27. Qc3 Qa8 28. e4 Rd7 29. e5 Re8 30. Be4 Qd8 {[#] intending ...Nxe5.} 31. Re1 ({Better is} 31. f4 $1 $18) 31... f5 (31... g6 $16 32. h4 h5) 32. exf6 $1 $18 Qxf6 33. f4 Nd6 34. Bb1 Nf5 {[%cal Rf5d4]} 35. Re5 {And now Bxf5 would win.} Rd5 (35... g6 {keeps fighting.} 36. Ba2 Rg7) 36. Rce1 {Strongly threatening Bxf5.} Rxe5 37. dxe5 ({Less strong is} 37. fxe5 Qg5 $16) 37... Qg6 38. Qf3 Rd8 39. g4 h5 {[#]} 40. h3 $1 Rd2 41. Be4 hxg4 42. hxg4 Nh4 $2 (42... Bc8 43. Kf1 Bd7) 43. Qg3 (43. Qh3 $142 Nf5 44. Be3) 43... Nf5 {If Black can now play ...Re2 this consolidates a bit.} 44. Qf3 $2 (44. Qh3) 44... Nh4 45. Qh3 Nf5 46. Be3 Ra2 47. Rd1 Rxa3 48. Rd8+ {White mates.} Kf7 {[#]} 49. Bc5 $1 {[%csl Gc5][%cal Rd8f8][%mdl 512]} Ra1+ 50. Kf2 {[%csl Gc5][%cal Rd8f8]} Ra2+ 51. Ke1 {Accuracy: White = 90%, Black = 56%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.15"]
[White "Aryan Chopra"]
[Black "Rakhmanov, Aleksandr"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2562"]
[BlackElo "2645"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,70,34,29,31,32,39,45,50,45,37,50,39,34,17,27,38,45,15,23,4,8,-14,37,33,50,41,38,40,33,34,40,40,33,14,24,0,0,0,0,-10,-15,-33,0,-9,0,0,0,0,0,0,0,0,0,0,0,0,0,-5,-5]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nf6 6. d4 Be7 7. Bd3 O-O 8. O-O {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves.} Re8 {8...Nc6 is the modern continuation.} 9. h3 h6 10. Re1 {White is slightly better.} Bf8 11. Rxe8 Qxe8 12. Bf4 Be6 {[#]} 13. Qe2 $146 ({Predecessor:} 13. Qd2 Qd7 14. Ne4 Nxe4 15. Bxe4 d5 16. Bd3 Nc6 17. c3 a6 18. Re1 Rc8 19. b4 {½-½ (30) Esipenko,A (2636)-Rakhmanov,A (2638) Budva 2019}) 13... Nbd7 14. Re1 {[#] Strongly threatening d5!} Qc8 15. Nd2 Qd8 16. Bg3 c6 17. f4 Qa5 (17... Qb6 $11) 18. Qf2 $14 Re8 19. f5 Bd5 $1 20. Rxe8 Nxe8 21. Nxd5 Qxd5 22. Nb3 {[#] aiming for c4.} c5 $1 {[%cal Rc5c4] ...c4 is the strong threat.} 23. Qe2 {Threatens to win with Be4.} Nef6 24. Bf2 b6 25. a4 Qa8 26. Bb5 d5 27. c4 a6 28. Bxd7 $1 {The position is equal.} Nxd7 29. Qf3 Qc6 30. dxc5 ({Of course not} 30. cxd5 Qxa4 31. dxc5 bxc5 $17) 30... Nxc5 31. Nxc5 Bxc5 32. Qxd5 Bxf2+ 33. Kxf2 Qxa4 $11 {KQ-KQ} 34. Qd8+ Kh7 {Hoping for ...Qc2+.} 35. Qxb6 Qxc4 {Accuracy: White = 95%, Black = 96%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.16"]
[White "Moroni, Luca Jr"]
[Black "Riazantsev, Alexander"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2536"]
[BlackElo "2639"]
[Annotator "TA"]
[PlyCount "111"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,111,16,56,56,58,54,60,39,60,53,107,77,95,88,80,84,79,74,87,77,195,181,208,193,175,120,120,79,74,79,79,66,63,75,78,73,88,67,66,50,68,66,68,62,55,54,75,68,72,75,68,64,75,76,89,83,89,86,97,97,97,97,97,97,100,100,94,94,94,95,108,14,14,14,44,1,0,0,0,0,0,3,192,192,192,192,192,192,192,192,192,8,192,192,192,192,192,192,192,0,192,192,192,192]} 1. c4 e6 2. Nc3 d5 3. d4 Bb4 4. Nf3 dxc4 5. Bg5 f6 {[#]} 6. Bd2 $146 {D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+ Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6.} ({Predecessor:} 6. Bf4 Nc6 7. e3 Na5 8. a3 Nb3 9. axb4 Nxa1 10. Qxa1 Ne7 11. Bxc4 c6 12. O-O Bd7 {1-0 (22) Dantas,I-Da Silva,F Natal 2010}) 6... a6 7. e3 b5 8. a4 {White is slightly better.} Bxc3 9. Bxc3 {Hoping for axb5.} Qd5 (9... Bb7 $14) 10. Nd2 $16 Bb7 11. axb5 axb5 12. Rxa8 Bxa8 13. b3 $1 {[%cal Rb3c4]} cxb3 14. e4 Qb7 (14... Qd7 $16 {might work better.}) 15. Qxb3 $18 Kf7 16. Bxb5 Ne7 {[#]} 17. O-O ({Better is} 17. f4 $1 $18) 17... c6 $16 18. Nc4 Nc8 19. Ba4 Qxb3 20. Bxb3 {And now Ra1 would win.} c5 $1 21. f3 cxd4 22. Bxd4 Rd8 23. Be3 Nc6 24. Bc5 Nd4 25. Rd1 Ne2+ 26. Kf2 Rxd1 27. Bxd1 Nf4 28. Ba3 Bc6 29. g3 Ng6 30. Bb3 Nge7 31. Ke3 Bd7 32. Kd4 Nc6+ 33. Kc5 Nd8 34. Nd6+ Nxd6 35. Kxd6 {[%mdl 4096] Endgame KBB-KBN} Ke8 36. f4 Nb7+ 37. Kc7 Na5 38. Ba2 Nc6 39. Bc5 Ne7 40. g4 (40. Bc4 $16) 40... Ng6 $11 41. Be3 Ke7 42. f5 exf5 $1 43. gxf5 Ne5 44. Bc5+ Ke8 45. Bd6 {aiming for Bxe5.} Ba4 $2 {[#]} (45... Nf3 $11) 46. Bxe5 $1 $18 fxe5 {KB-KB} 47. Kd6 Bc2 48. Bd5 Kf8 49. Kxe5 {Ke6 is the strong threat.} Ke7 50. Kf4 $2 ({White should play} 50. Bg8 $18 h6 51. Kf4) 50... h6 $2 (50... Bxe4 $1 $11 51. Bxe4 (51. Kxe4 Kf6 $11) 51... Kf6) 51. e5 Bd3 52. Be4 Be2 53. Bf3 Bd3 54. Be4 Be2 $1 55. Kg3 Bd1 56. Kh4 {Accuracy: White = 83%, Black = 78%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.17"]
[White "Narayanan.S.L"]
[Black "Kulaots, Kaido"]
[Result "1/2-1/2"]
[ECO "D85"]
[WhiteElo "2637"]
[BlackElo "2510"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,95,14,9,17,5,16,6,19,12,23,0,54,35,37,10,65,62,76,60,72,78,79,75,78,80,70,56,60,37,53,27,28,22,23,23,23,23,23,23,25,17,39,22,23,18,21,16,19,0,22,22,41,41,43,11,10,10,15,0,0,5,8,0,2,0,0,0,0,0,0,0,0,0,0,0,0,8]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Be3 c5 8. Rc1 Qa5 9. Qd2 cxd4 10. cxd4 Qxd2+ 11. Bxd2 O-O {D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 Nf3.} 12. Nf3 Bg4 13. Be3 Rd8 14. Bb5 {[#]} a6 $146 ({Predecessor:} 14... Nc6 15. Bxc6 bxc6 16. Ne5 Bxe5 17. dxe5 Rab8 18. f3 Be6 19. Bxa7 Rb2 20. O-O Rxa2 {½-½ (59) Docx,S (2468)-Dvirnyy,D (2574) Caleta 2014}) 15. Ba4 Bd7 ({Black should try} 15... Bxf3 $11 16. gxf3 Bxd4) 16. Bxd7 $1 $14 Nxd7 17. Rc7 b5 (17... e5 $11) 18. Ke2 $1 Nf6 {[#]} 19. Kd3 $1 ({Much weaker is} 19. Rxe7 $6 Bf8 $11) 19... Kf8 20. Rhc1 Ne8 21. R7c6 Nd6 22. Nd2 Ke8 23. d5 e6 24. dxe6 fxe6 25. Ke2 Rdc8 $1 26. Rc7 Bf6 27. R1c6 {next Rxc8+ is good for White.} (27. Kd3 {with more complications.} Bd8 28. Rxc8 Rxc8 29. Rxc8 Nxc8 30. Nb3) 27... Rxc7 28. Rxc7 Rc8 29. Rxc8+ Nxc8 $11 {[%mdl 4096] Endgame KBN-KBN} 30. Nb3 Be7 31. f4 Kd7 32. Kd3 Kc6 33. Nd4+ Kd7 34. Nb3 Kc6 35. g4 Bd6 36. Nd4+ Kd7 37. Nf3 (37. e5 $5 {[%cal Re5d6]} Bb4 38. Ke4 $14) 37... Ne7 {The position is equal.} 38. Ng5 {Threatens to win with e5.} h5 39. h3 hxg4 40. hxg4 Nc6 41. Bd2 Ke7 42. f5 Ne5+ 43. Ke2 exf5 44. exf5 gxf5 45. gxf5 Nc4 46. Bc3 Be5 47. Bxe5 Nxe5 48. Ne4 {Accuracy: White = 97%, Black = 94%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.18"]
[White "Martirosyan, Haik M."]
[Black "Stupak, Kirill"]
[Result "1/2-1/2"]
[ECO "C09"]
[WhiteElo "2630"]
[BlackElo "2518"]
[Annotator "TA"]
[PlyCount "42"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,42,29,31,31,33,33,27,27,22,22,23,27,27,33,35,29,0,0,0,0,0,12,9,12,10,12,10,10,3,7,0,0]} 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6 6. Bb5 Qe7+ 7. Be2 Qc7 {C09: French Tarrasch: 3...c5 4 exd5 exd5 5 Ngf3 Nc6.} 8. dxc5 Bxc5 9. O-O Nf6 {White has an edge.} 10. Nb3 Be7 11. Bg5 O-O 12. c3 Be6 13. Nbd4 Rae8 {[#]} 14. Bd3 $146 ({Predecessor:} 14. Re1 h6 15. Bh4 Ne4 16. Bxe7 Rxe7 17. Bd3 Bg4 18. Qb3 Rd8 19. h3 Bh5 20. Qc2 {½-½ (76) Mista,A (2606)-Wojtaszek,R (2734) Poland 2017}) 14... Nxd4 {The position is equal.} 15. Nxd4 Ng4 {[%csl Gg4][%cal Rc7h2] [#]} 16. g3 Bxg5 17. Nxe6 Rxe6 18. Qxg4 Bf6 19. Qf5 {[%csl Gd3][%cal Rf5h7] [#]} g6 20. Qxd5 Rd8 21. Qf3 Qc6 {Accuracy: White = 90%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.19"]
[White "Iljiushenok, Ilia"]
[Black "Paravyan, David"]
[Result "0-1"]
[ECO "C65"]
[WhiteElo "2519"]
[BlackElo "2629"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,102,14,24,20,18,14,17,0,0,-14,-6,-21,0,2,0,0,0,0,7,-21,-29,-21,-22,-34,-17,-16,-16,-19,-26,-25,-19,-14,-2,-10,-16,-14,14,0,18,12,0,-9,-9,-22,-15,-26,-22,-21,-7,-6,-22,-13,0,-41,-18,-170,-173,-150,-166,-158,-160,-166,-158,-256,-247,-560,-523,-812,-555,-545,-535,-584,-562,-576,-575,-663,-660,-650,-627,-663,-652,-635,-635,-778,-778,-1957,-1890,-5926,-5631,-2297,-2179,-1655,-1423,-1902,-1174]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bxc6 dxc6 6. Nbd2 {C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5.} Nd7 7. Nc4 f6 $1 {[%mdl 4] is recently more successful than 7...0-0. Played by Giri in January 2020.} 8. Qe2 {The position is equal.} (8. O-O {looks sharper.} O-O 9. Qe1 Nb6 10. Be3 Bd6 11. Nfd2) 8... Nf8 9. Be3 Bxe3 {[#]} 10. Qxe3 $146 ({Predecessor:} 10. Nxe3 Ne6 11. O-O-O c5 12. g3 Nd4 13. Nxd4 cxd4 14. Ng2 Be6 15. Kb1 Qe7 16. f4 {½-½ (36) Anand,V (2757)-So,W (2760) Bucharest 2019}) 10... Be6 11. Ncd2 Qd6 12. d4 exd4 13. Nxd4 O-O-O 14. N4b3 b6 15. O-O-O Ng6 16. g3 c5 17. Nb1 Qc6 18. Nc3 a5 {[%cal Ba7a5,Ba5a4][%mdl 32]} 19. Qe2 Kb7 20. f4 a4 21. Nd2 {aiming for f5.} Rhe8 22. a3 Nf8 23. Nc4 Bf7 24. Rxd8 Rxd8 25. Rd1 Rxd1+ 26. Nxd1 Ne6 {Strongly threatening ...Nd4.} 27. Qd3 Nd4 {White must now prevent ...Bxc4.} 28. Nd2 Qd7 29. Nf2 Qe6 30. c3 Nc6 31. Nd1 g5 32. Ne3 $2 {Loses the game.} (32. Nf2 $11 {and White is okay.}) 32... gxf4 $19 33. gxf4 Qh3 34. Qe2 {[#]} Qh4 $1 35. Nd5 {[#]} f5 $1 {[%mdl 512]} 36. Nf3 (36. Ne3 $17 {might work better.}) (36. exf5 Bxd5) 36... Qg4 37. Qe3 $2 (37. h3 Qg3 38. Ng5) 37... Bh5 {Black is clearly winning.} 38. exf5 Qxf3 39. Qxf3 Bxf3 40. Nf6 Ne7 41. Nxh7 {Threatening f6.} Nxf5 42. Ng5 Bd5 43. Kd2 Kc6 44. Nh3 Kd7 45. Nf2 Ke6 46. Ng4 Nd6 47. h4 Nc4+ 48. Kc1 Kf5 49. Nf2 Kxf4 50. h5 Kg5 51. Nd3 c6 {Accuracy: White = 56%, Black = 90%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.20"]
[White "Lobanov, Sergei"]
[Black "Deac, Bogdan-Daniel"]
[Result "0-1"]
[ECO "C67"]
[WhiteElo "2507"]
[BlackElo "2626"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,86,22,21,24,11,8,5,8,0,-8,0,-2,-8,-11,-21,0,-18,-3,-19,-14,-15,-26,-19,-34,-31,-47,-47,-47,-53,-31,-16,-51,-69,14,33,23,0,0,0,0,-16,-11,-38,-42,-72,-71,-80,-80,-97,-94,-92,-88,-104,-89,-179,-193,-175,-111,-270,-260,-258,-283,-270,-283,-275,-251,-356,-198,-197,-202]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bf1 Nxe5 8. Rxe5 O-O 9. d4 Bf6 10. Re1 Re8 {C67: Ruy Lopez: Berlin Defence: 4 0-0 Nxe4.} 11. Rxe8+ Nxe8 12. d5 d6 {The position is equal.} 13. Bd3 c6 {[#]} 14. dxc6 $146 ({Predecessor:} 14. Be4 Qb6 15. Na3 Qb4 16. Bf3 Bxb2 17. Rb1 Qxa3 18. Bxb2 Qxa2 19. dxc6 bxc6 20. Bxc6 {½-½ (35) Gazel Pereira,F (2300)-Martins Jr Sobrinho,M (1838) Florianopolis 2016}) 14... bxc6 15. Nd2 d5 16. Nb3 Qd6 17. Qf3 Be5 18. h3 Nc7 19. c3 c5 {[%cal Bc6c5,Bc5c4][%mdl 32]} 20. Bf1 Rb8 21. Be3 c4 22. Bxa7 Rb7 $1 {[%cal Rb7a7]} 23. Bc5 Qf6 $1 {[%cal Rf6f3]} 24. Nd4 Rxb2 25. Qe3 {Hoping for Re1.} Qf4 ({Better is} 25... Ne6 $15 26. Nxe6 fxe6) 26. Qxf4 $11 Bxf4 27. Ba3 Rb7 28. Bb4 Bd7 29. g3 Be5 $36 {[%mdl 2048] Strongly threatening ...Bxd4. White is under pressure.} 30. Nf3 Bf6 {And now ...Rxb4! would win.} 31. Rc1 Ra7 32. a3 Nb5 $1 33. Bc5 Ra5 34. Bb4 Ra4 $1 35. Bg2 Be6 36. Nd2 (36. Kf1 $17) 36... Nxa3 $19 37. f4 d4 (37... g6 $19 38. g4 Rxb4 $1 {[%mdl 512]} 39. cxb4 Bb2) 38. Be4 $2 {This costs White the game.} (38. Ne4 $17 d3 39. Bc5) 38... dxc3 (38... Bxh3 39. Bc6 $17) 39. Bxc3 Bxc3 ({Less strong is} 39... Bxh3 40. Bxf6 gxf6 41. Kf2 $17) 40. Rxc3 Nb5 ({Weaker is} 40... Bxh3 41. Bc6 $17) 41. Re3 g6 ({Inferior is} 41... Bxh3 {[#]} 42. Bc6 $1 $11 {[%mdl 512]}) 42. Kf2 (42. Nf3 {was called for.}) 42... Bxh3 (42... Ra2 $142 43. Ke1 c3) 43. Bc6 Ra2 {Accuracy: White = 75%, Black = 81%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.21"]
[White "Jobava, Baadur"]
[Black "Kozionov, Kirill"]
[Result "1-0"]
[ECO "E62"]
[WhiteElo "2620"]
[BlackElo "2466"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,65,21,30,22,8,15,26,38,38,41,47,45,26,51,45,50,49,45,51,60,41,75,25,82,74,98,88,104,105,128,125,132,132,315,314,318,314,343,326,334,286,502,498,481,472,595,570,525,366,367,349]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 O-O 5. Bg2 d6 6. Nf3 Nc6 7. d5 Na5 8. b3 {[%cal Bb2b3,Bb3b4][%mdl 32]} a6 9. O-O Rb8 {E63: King's Indian: Fianchetto: Panno Variation with 7...a6.} 10. Nd4 Bd7 11. Bg5 $5 {[%mdl 4] A promising side line.} b5 {White has an edge.} 12. cxb5 axb5 {[#]} 13. b4 $146 ({Predecessor:} 13. Rc1 b4 14. Bxf6 Bxf6 15. Ne4 Bg7 16. f4 e5 17. dxe6 fxe6 18. Ng5 Bxd4+ 19. Qxd4 {1-0 (39) Mironenko,G (2006)-Pavalachandran,A (1381) Pocos de Caldas 2017}) 13... Nc4 14. Qc1 Ng4 15. Ncxb5 $1 Bxb5 16. Nxb5 Bxa1 17. Qxc4 Bf6 {Hoping for ...Ne5.} 18. Bxf6 Nxf6 19. Bh3 Rb7 (19... Rb6 $11 {remains equal.}) 20. a4 {[%cal Ba2a4,Ba4a5][%mdl 1056] White has strong compensation.} Qa8 {[#]} 21. Nc3 $1 Rfb8 22. Rb1 Qa7 23. e3 Ra8 24. a5 Qa6 $2 (24... Rbb8 $16) 25. Qxa6 $18 {[%mdl 64] [#] Overworked Piece} Rxa6 26. Bc8 {[%mdl 64] Skewer} Rba7 27. Bxa6 Rxa6 {[%mdl 4096] Endgame KRN-KRN} 28. e4 Ra8 $2 (28... Kf8 29. Rc1 Ke8) 29. Nb5 Ne8 30. Rc1 Rb8 31. a6 Ra8 32. a7 Kf8 33. Kg2 {White took control after the opening. Accuracy: White = 85%, Black = 57%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.22"]
[White "Zanan, Evgeny"]
[Black "Chigaev, Maksim"]
[Result "1-0"]
[ECO "C92"]
[WhiteElo "2500"]
[BlackElo "2616"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,93,8,25,14,28,28,27,20,24,26,39,57,60,10,10,10,11,11,22,0,58,0,0,0,0,0,-22,-7,27,17,26,-67,41,35,42,53,81,77,62,64,77,60,117,115,235,214,235,237,224,132,137,153,152,119,297,312,302,300,459,450,428,265,529,498,575,586]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Re8 10. d4 Bb7 11. Nbd2 Bf8 12. a3 h6 13. Bc2 Nb8 14. b4 Nbd7 15. Bb2 c5 16. d5 {C93: Closed Ruy Lopez: Smyslov Variation.} a5 17. bxa5 Qxa5 18. c4 {White has an edge.} Ba6 19. cxb5 Bxb5 20. a4 Ba6 {[#]} 21. Nb3 $146 ({Predecessor:} 21. Bb3 Nb6 22. Qc2 c4 23. Bc3 Qc5 24. Ba2 Nbd7 25. Rab1 Rec8 26. Bb4 Qa7 27. Re3 {½-½ (47) Jonsson,D (2519)-Churkin,M (2493) ICCF email 2013}) 21... Qc7 $1 22. Bc3 c4 23. Na5 Nc5 24. Nc6 Nfd7 (24... Bb7 $11) 25. Qd2 ({White should play} 25. Nd2 $14) 25... Nd3 $11 26. Bxd3 cxd3 27. Ba5 Qc8 28. Bb4 $36 {[%mdl 2048] White has the initiative.} Nf6 (28... f5 $5) 29. Qe3 Nh5 30. Red1 (30. Nh4 $11) 30... Nf4 (30... f5 $1 $15 31. Nd2 Nf4) 31. Ne1 $1 $14 f5 32. Nxd3 Nxd3 33. Rxd3 Bxd3 34. Qxd3 fxe4 35. Qxe4 Kh8 (35... Qa6 $1 $14) 36. a5 $16 {[%mdl 1024] White has strong compensation.} Qa6 (36... Qb7 $16) 37. Bd2 Be7 38. Rb1 Bf6 {[#]} 39. Rb6 (39. Rb4 $1 $18) 39... Qc8 40. Be3 Rf8 41. Qd3 Bg5 $2 {This costs Black the game.} (41... Bd8 $16) 42. Bxg5 $18 hxg5 43. a6 Qe8 (43... e4 $142 44. Qe2 (44. Qxe4 Rxa6 45. Rb8 Qxb8 $16) 44... Qe8) 44. Rb7 e4 {[#]} 45. Qc3 $1 {[%csl Gb7][%cal Rc3g7][%mdl 512]} Rf7 $2 (45... Qg6 {keeps fighting.}) 46. Qe3 Kh7 47. Qxg5 {Accuracy: White = 72%, Black = 49%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.23"]
[White "Smirin, Ilia"]
[Black "Raja Harshit"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2615"]
[BlackElo "2472"]
[Annotator "TA"]
[PlyCount "48"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,48,23,15,0,0,0,0,0,0,8,12,18,20,15,27,-27,24,-12,-15,-17,0,11,16,6,0,0,0,0,0,-29,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nf3 Be7 8. Nd2 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} b5 9. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} b4 10. Nd5 Nxd5 11. exd5 Nd7 12. a5 f5 13. Nc4 O-O 14. Ra4 {[#]} (14. Bd2 $142) 14... Rb8 $146 (14... f4 $142 15. Bb6 Qe8) ({Predecessor:} 14... f4 15. Bb6 Qe8 16. Rxb4 Nf6 17. Bc7 e4 18. Bxd6 e3 19. Be2 Bxd6 20. Nxd6 exf2+ {0-1 (26) Ilken,Z (2289)-Falatowicz,P (2386) ICCF email 2016}) 15. Bb6 Nxb6 16. Nxb6 Qc7 17. Rxb4 Qc5 $1 {[%cal Rc5b4]} 18. Ra4 {next Qd2 is good for White.} Bd8 19. b4 Qc3+ 20. Qd2 Qb2 $1 21. c3 Qb1+ 22. Qd1 {The position is equal.} Qe4+ 23. Qe2 Qb1+ 24. Qd1 Qe4+ {Not much happened in this game. Accuracy: White = 79%, Black = 85%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.24"]
[White "Kobalia, Mikhail"]
[Black "Pogosyan, Stefan"]
[Result "1-0"]
[ECO "C88"]
[WhiteElo "2609"]
[BlackElo "2455"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,87,16,33,23,40,25,45,12,37,40,66,66,64,71,106,70,70,59,59,57,80,31,127,138,131,134,128,118,135,135,129,127,142,133,143,134,131,73,65,58,118,110,120,118,125,112,101,79,147,25,22,11,45,43,83,0,90,0,81,75,145,135,466,459,434,374,552,543,1263,1268]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. a4 Bb7 9. d3 O-O 10. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1g3][%mdl 32]} Re8 {10...Nd7 is becoming the main line.} 11. Nf1 {C88: Closed Ruy Lopez: Anti-Marshall Systems.} Bf8 12. Ng3 $5 {[%mdl 4] Leaves trodden paths.} g6 13. Ng5 {White is slightly better.} Re7 {[#]} 14. f4 $146 ({Predecessor:} 14. c3 h6 15. Nf3 Nb8 16. h3 Nbd7 17. Nh2 c5 18. Ng4 Kh7 19. Nxf6+ Nxf6 20. f4 {½-½ (64) Deuer,M (1961)-Bock,M (1596) Willingen 2019}) 14... Bg7 15. f5 d5 16. Be3 dxe4 17. N5xe4 (17. N3xe4 {looks sharper.} Nd4 18. fxg6 hxg6 19. Ba2 Bd5 20. Nxf6+ Bxf6 21. Ne4) 17... Nd4 18. Bg5 (18. Nxf6+ {feels hotter.} Bxf6 19. fxg6 hxg6 20. Ba2 bxa4 21. Rf1) 18... Nxb3 19. Bxf6 Bxe4 20. Nxe4 Bxf6 ({Better is} 20... Nxa1 $14 21. Bxg7 Nxc2 22. Qxc2 gxf5) 21. Nxf6+ $16 Kg7 22. cxb3 Kxf6 23. Rf1 gxf5 {[#]} 24. Qh5 $1 {[%cal Rh5h6][%mdl 576] Double Attack} Kg7 25. Qg5+ Kf8 26. Qxf5 {Threatens to win with axb5.} Qd4+ 27. Kh1 e4 28. dxe4 (28. Rf4 $142) 28... Qxe4 29. Qf6 {[%cal Rf6h8]} Qe5 (29... Qg6 $14) 30. Qc6 Rb8 31. Qxa6 bxa4 32. bxa4 Rxb2 33. a5 Re2 (33... Re6 $142 34. Qc4 (34. Qa8+ Kg7 $14) 34... Qe4 35. Qc5+ Kg7 36. Qc3+ {[%mdl 64] Double Attack} Qe5 37. Qxe5+ (37. Qf3 Rf6 $14) 37... Rxe5) 34. Qc8+ (34. Qa8+ $1 $16 Re8 35. Qf3 $1 {[%mdl 512]}) 34... Re8 $11 35. Qd7 {[%csl Gf1][%cal Rd7f7]} Re7 36. Qd8+ Re8 37. Qd7 {[%csl Gf1][%cal Rd7f7]} Re7 {[#]} 38. Qd8+ (38. Qd1 $1 $16 {Hoping for a6.} Re6 39. Qb3 (39. Qd8+ Kg7 $14)) 38... Kg7 (38... Re8 $1 $11 {remains equal.} 39. Qd1 Re6) 39. Qd3 $16 {a6 is the strong threat.} Re3 {[#]} (39... Re6 $142) 40. Qd1 $1 {Strongly threatening a6.} Re2 $2 {[%mdl 8192] This move loses the game for Black.} (40... c5 $16 41. a6 Ra7 42. Qg4+ Kh8 43. Qc8+ Kg7 44. Qg4+ Kh8 45. Qc8+ Kg7 46. Qg4+) 41. a6 $18 {aiming for a7.} Qe4 {[%csl Ge2][%cal Re4g2]} 42. Rg1 c5 (42... Re8 $142 43. a7 Ra8) 43. a7 Re8 {[#]} 44. a8=Q $1 {[%mdl 512] Accuracy: White = 77%, Black = 57%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.25"]
[White "Abdumalik, Zhansaya"]
[Black "Svane, Rasmus"]
[Result "0-1"]
[ECO "C88"]
[WhiteElo "2471"]
[BlackElo "2608"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,96,15,8,6,8,18,-15,-14,-27,-18,-25,-31,-37,-19,-16,0,-36,-31,-28,-29,-146,-136,-130,-141,-144,-139,-139,-131,-143,-146,-140,-154,-150,-136,-152,-139,-151,-145,-159,-97,-163,-162,-165,-163,-153,-112,-114,-108,-164,-161,-175,-159,-165,-165,-423,-422,-379,-391,-493,-486,-454,-454,-616,-256,-616,-607,-1064,-843,-1508,-1178,-1566,-1610,-1480,-1408,-1176,-1135]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a4 Bb7 9. d3 d6 10. c3 Na5 11. Bc2 c5 12. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1g3][%mdl 32]} Re8 {C88: Closed Ruy Lopez: Anti-Marshall Systems.} 13. Nf1 b4 14. Ng3 Bf8 {The position is equal.} 15. d4 exd4 16. cxd4 cxd4 17. Nxd4 g6 18. Bg5 h6 19. Bf4 Rc8 20. b3 Qb6 {[#] Hoping for ...d5.} 21. Qd2 $146 {[#]} (21. Nf3 $11) ({Predecessor:} 21. Be3 d5 22. e5 Rxe5 23. Nf3 Rxe3 24. Rxe3 d4 25. Re1 Bxf3 26. gxf3 Nd5 27. Ne4 {0-1 (45) Leal,D (2323)-Fages,J (2150) ICCF email 2008}) 21... Rxc2 $1 {[%mdl 576] Remove Defender, Deflection} 22. Nxc2 (22. Qxc2 Qxd4) 22... Nxb3 {[%mdl 64] Double Attack} 23. a5 Qc5 24. Qxb4 Nxa1 ({But not} 24... Qxc2 25. Re2 $15) 25. Qxc5 dxc5 26. Rxa1 Nxe4 27. Ne3 g5 28. Bc7 Nxg3 29. hxg3 Be4 30. Rc1 Rc8 ({Better is} 30... Bd3 31. Rc3 {[#]} c4 $1 {[%mdl 512]} 32. Nxc4 Bxc4 33. Rxc4 Rc8) 31. Bb6 (31. Be5 $17) 31... Bd3 $19 32. Nd5 c4 33. Bd4 Ba3 34. Ra1 Bd6 35. g4 (35. Nf6+ $17 Kf8 36. Nd7+ Ke8 37. Nf6+ Kf8 38. Nd7+ Ke8 39. Nf6+ Kf8) 35... f5 36. gxf5 Bxf5 37. Bc3 Kf7 38. Nb4 $2 (38. Rd1 {is a better defense.}) 38... Bxb4 39. Bxb4 {[%mdl 4096] Endgame KRB-KRB} c3 {Threatens to win with ...c2.} 40. Rc1 c2 41. Kf1 Re8 42. g3 Bh3+ 43. Kg1 Re2 {Black is clearly winning.} 44. g4 Bxg4 45. Kg2 Re4 46. Bd2 Bd1 47. Ra1 Rd4 48. Be3 Rd3 {Accuracy: White = 50%, Black = 92%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.26"]
[White "Praggnanandhaa R"]
[Black "Sreeshwan Maralakshikari"]
[Result "1-0"]
[ECO "B10"]
[WhiteElo "2602"]
[BlackElo "2440"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,71,8,67,54,66,68,131,133,137,139,134,141,146,147,144,135,134,68,127,123,135,135,167,180,180,167,183,175,184,163,208,202,295,293,333,310,369,368,455,438,576,604,586,597,660,642,849,783,731,755,968,983,1089,1072,999,766,1024,991,1812,1804,29985,29986,29990,1385]} 1. e4 c6 2. Nc3 d5 3. Nf3 Nf6 4. e5 Ne4 5. Ne2 Bg4 (5... Qb6 $1 $11 6. d4 e6) 6. Nfg1 $14 {Black must now prevent f3. B11: Caro-Kann: Two Knights Variation.} Nc5 7. d4 Ncd7 (7... Ne6 $14) 8. f3 $16 {White is clearly better.} Bf5 9. g4 Be6 10. Nf4 c5 11. Nxe6 fxe6 12. c3 Nc6 13. f4 (13. Be3 $16) 13... g5 (13... cxd4 $14 14. cxd4 Qb6) 14. Nf3 (14. fxg5 $6 cxd4 15. cxd4 Qb6 $11) 14... gxf4 15. Bxf4 cxd4 16. cxd4 Bg7 17. Qd2 O-O 18. Be2 $1 ({Not} 18. Ng5 Rxf4 $1 {[%mdl 512]} 19. Qxf4 Qa5+ 20. Qd2 (20. Kf2 $2 Rf8 $19) 20... Qxd2+ 21. Kxd2 Nxd4 $17) 18... Qb6 19. Be3 Rac8 {intending ...Nb4.} 20. O-O Nb4 (20... Qb4 $142) 21. Bd1 $18 Rf7 ({But not} 21... Qb5 22. a3 $18) 22. Kg2 Nf8 23. h4 Ng6 24. h5 Nh8 25. a3 Nc6 {Now ...Na5 and Black clings on.} 26. b4 a5 27. Bc2 Bf8 28. Kh3 axb4 29. Ng5 {[%mdl 64] Double Attack, Discovered Attack} Rg7 30. Nxe6 b3 31. Bf5 Rf7 32. Ng5 Rxf5 33. gxf5 Na5 34. f6 Nf7 35. Qg2 Rc3 36. Ne4+ {Accuracy: White = 93%, Black = 36%.} (36. fxe7 $142 Rxe3+ {[#]} 37. Kh2 $1 {[%mdl 512]} Re2 38. e8=Q Rxg2+ 39. Kxg2 Qh6 40. Qxf7+ Kh8 41. Qxf8+ Qxf8 42. Rxf8+ Kg7 43. Ne6+ Kh6 44. Rh1 Nc6 45. Rf6#) 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.27"]
[White "Gokerkan, Cem Kaan"]
[Black "Basso, Pier Luigi"]
[Result "1/2-1/2"]
[ECO "C47"]
[WhiteElo "2461"]
[BlackElo "2600"]
[Annotator "TA"]
[PlyCount "46"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,46,29,13,31,20,23,22,27,29,41,36,41,17,27,25,34,0,44,28,33,15,37,29,37,37,37,37,40,0,25,0,35]} 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. a3 d6 5. d4 exd4 6. Nxd4 Nxd4 7. Qxd4 Be7 8. Bc4 O-O 9. O-O Re8 {C50: Hungarian Defence and Giuoco Pianissimo.} 10. Bf4 {[#]} Ng4 $146 ({Predecessor:} 10... a6 11. Rfe1 b5 12. Ba2 Bb7 13. Rad1 Nd7 14. Nd5 Bf6 15. Nxf6+ Qxf6 16. Qxf6 Nxf6 {0-1 (60) Ngo,N-Vo T Hong,P Hue 2003}) 11. Nd5 Bf8 12. Rad1 Ne5 13. Bb3 c6 14. Nc3 {[#] Bxe5 is the strong threat.} Qa5 15. Bg3 b5 16. f4 Nd7 17. Kh1 Qb6 18. Qxb6 axb6 19. f5 Ne5 20. h3 Ra7 21. Bf2 Nd7 22. Bg3 Ne5 23. Bf2 Nd7 {Accuracy: White = 93%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.28"]
[White "Krishna C R G"]
[Black "Puranik, Abhimanyu"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "2443"]
[BlackElo "2597"]
[Annotator "TA"]
[PlyCount "106"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,106,16,8,8,8,8,23,11,17,13,16,16,33,0,5,-8,1,0,0,0,0,0,6,0,60,51,52,-7,0,0,0,0,0,0,0,0,0,-26,-33,-25,-13,-18,-19,-16,-24,-47,-17,-72,-66,-68,-81,-82,-59,-52,-52,-69,-68,-61,-67,-64,-67,-92,-93,-88,-75,-75,-76,-89,-89,-89,-89,-123,-125,-122,-126,-133,-132,-139,-133,-282,-273,-268,-277,-268,-260,-215,-145,-397,-381,-410,-397]} 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 c5 6. d4 cxd4 7. Nxd4 Nc6 8. Nc3 {[%cal Bb1c3,Bc3d5,Bd5f4][%mdl 32]} Qa5 $1 {[%mdl 4] outshines the older 8...Nxd4. Played by David Navara in January 2020.} 9. Nb3 Qh5 10. Nd5 {A39: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3 Nf6 6 0-0 0-0 7 d4.} d6 11. Nf4 Qf5 12. Re1 {White has an edge.} Qd7 13. Bd2 b6 14. Bc3 e6 {[#]} 15. Nd2 $146 (15. Nd4 $5 {[%cal Rg2c6]} Bb7 16. Nxc6 Bxc6 17. e4 $11) ({Predecessor:} 15. Qc2 Bb7 16. Rad1 Qc7 17. Nd2 Ne5 18. Bxb7 Qxb7 19. Nd3 Qc7 20. Nxe5 dxe5 21. b3 {1-0 (51) Delchev,A (2604)-Congiu,M (2301) Linares 2015}) 15... Bb7 16. Qa4 Rac8 17. Rad1 Qc7 18. b3 Rfd8 19. Qa3 a6 20. Qb2 e5 (20... Ne5 $11) 21. Nd5 $14 Nxd5 22. Bxd5 (22. cxd5 $14 Nd4 23. Rc1) 22... b5 {And now ...b4 would win.} 23. Ne4 Nd4 24. Qd2 {next Ba5 is good for White.} Bxd5 25. cxd5 Qb7 26. Bxd4 exd4 27. Ng5 (27. Qf4 $5 {[%cal Re4d6]} Qe7 28. e3 $11) 27... Bh6 $36 {[%mdl 2048] Strongly threatening ...f6. Black fights for an advantage.} 28. Qf4 Qxd5 29. h4 Bg7 30. e4 Qb7 31. Nf3 Rc2 32. Rd2 (32. h5 $1 $11 {remains equal.}) 32... Rxd2 $17 33. Qxd2 Re8 34. Qd3 h5 35. Re2 Qb6 36. Rd2 {[%cal Rf3d4]} Qc6 37. Nxd4 Bxd4 38. Qxd4 Rxe4 $15 {[%mdl 4096] Endgame ( -> ...Re1+). KQR-KQR} 39. Qd5 {White is now going downhill.} Re1+ 40. Kg2 Rc1 41. Qxc6 Rxc6 $17 {KR-KR} 42. f3 Kf8 43. g4 Ke7 44. Kg3 {[#]} Rc5 $1 45. Kf4 f6 46. Re2+ Re5 47. Rc2 Kd7 48. Rg2 (48. Kg3 $17) 48... g5+ $19 49. Kg3 gxh4+ 50. Kxh4 hxg4 51. fxg4 d5 52. Rf2 $2 {[%mdl 8192] [#]} (52. Kg3 $17) 52... Ke6 $1 53. Kg3 d4 {Accuracy: White = 70%, Black = 93%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.29"]
[White "Salgado Lopez, Ivan"]
[Black "Lazavik, Denis"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "2597"]
[BlackElo "2428"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,59,8,16,18,25,11,14,17,24,23,25,26,35,23,33,20,13,15,24,8,13,7,15,0,0,0,0,0,0,-14,0,-9,-9,-9,-16,-16,0,-18,0,-18,0,0,37,37,30,25,24,-20,-12,-32]} 1. e4 e5 2. Bc4 Nf6 3. d3 Bc5 4. Nf3 Nc6 5. c3 d6 6. Nbd2 a6 7. a4 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} h6 8. b4 Ba7 9. O-O O-O 10. h3 Be6 11. Bxe6 fxe6 12. Re1 Nh5 13. Nf1 Qf6 14. Ra2 Nf4 {...Nxh3+! is the strong threat.} 15. Bxf4 Qxf4 {[#]} 16. N1h2 $146 ({Predecessor:} 16. Ne3 Ne7 17. Nh2 Qf7 18. g3 Rad8 19. Kg2 d5 20. Neg4 Ng6 21. Nf3 c5 22. bxc5 {½-½ (44) Vachier Lagrave,M (2780)-Kramnik,V (2753) Moscow 2019}) 16... Ne7 17. Kh1 Qf6 18. g3 Rf7 19. Kg2 Raf8 20. Rf1 g5 21. Rb2 Qg6 22. a5 Nc6 {[%cal Be7c6,Bc6d8,Bd8f7][%mdl 32]} 23. Qb3 Rf6 24. Ng1 h5 25. Qd1 Nd8 26. Ngf3 Nf7 ({Much worse is} 26... g4 $6 27. hxg4 hxg4 28. Nh4 $16) 27. b5 $1 axb5 28. Rxb5 b6 29. axb6 Bxb6 30. Rb2 {Accuracy: White = 95%, Black = 95%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.30"]
[White "Nikitenko, Mihail"]
[Black "Aleksandrov, Aleksej"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "2440"]
[BlackElo "2592"]
[Annotator "TA"]
[PlyCount "126"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,126,-3,-14,6,-11,-19,-10,0,-22,-21,-25,-30,-20,-21,-23,-31,-24,-23,-14,-21,-11,-28,-25,-9,-36,0,-27,-35,-40,-29,-59,-57,-52,-47,-47,-52,-64,-29,-108,-92,-79,-86,-147,-152,-149,-95,-95,-95,-95,0,-53,0,-95,-94,-94,-94,-250,-256,-239,-167,-256,-242,-242,-242,-235,-185,-189,-172,-151,0,-162,-154,-162,-142,-247,-248,-233,-8,-256,-248,-248,-248,-245,-223,-235,-248,-303,-303,-256,-301,-285,-291,-252,-249,-254,-238,-219,-219,-406,-381,-29958,-29960,-29958,-29960,-29972,-29969,-29972,-29975,-29975,-29976,-29976,-29977,-29977,-29978,-29977,-29979,-29978,-29979]} 1. d4 Nf6 2. Bg5 d5 3. Bxf6 exf6 4. e3 c6 5. Bd3 Bd6 6. Nd2 Be6 {D00: 1 d4 d5: Unusual lines.} 7. Qf3 g6 $5 {[%mdl 4] A promising side line.} 8. Ne2 f5 {The position is equal.} 9. h3 Nd7 {[#]} 10. g4 $146 ({Predecessor:} 10. Nf4 Qb6 11. Rb1 O-O-O 12. O-O Bb8 13. c4 Qc7 14. Rfc1 Nf6 15. b4 Ne4 16. Nb3 dxc4 17. Bxc4 Bxc4 18. Rxc4 {0-1 (35) Ho,E (1914)-Stojanovic,M (2112) Khanty-Mansiysk 2010}) 10... fxg4 11. hxg4 Qg5 12. Rg1 h5 13. gxh5 Qxh5 14. Nf4 Qxf3 15. Nxf3 Bxf4 16. exf4 Nf6 17. Ng5 Bd7 18. Ke2 Kf8 $36 {[%mdl 2048] Black has the initiative.} 19. Kf3 Re8 20. a4 a5 21. c3 Re7 22. b4 axb4 23. cxb4 Ng8 {White must now prevent ...f6.} 24. Rh1 (24. f5 $1 $11) 24... Rxh1 $1 $17 25. Rxh1 f6 $1 {[%cal Rf6g5]} 26. Bxg6 (26. Nh3 $142) 26... fxg5 27. fxg5 Rg7 (27... Kg7 $142 $1 {[%cal Rg7g6]} 28. Bb1 Rf7+ 29. Kg3 Ne7 30. Rh7+ Kg8 31. Rxf7 Kxf7) 28. Rh7 Ne7 29. Rh8+ Ng8 30. Rh7 Ne7 (30... Bh3 $5 {[%cal Rg7g6]} 31. Rxg7 Kxg7 $17) 31. Rh8+ Rg8 $1 {[%cal Rg8h8]} 32. Rxg8+ Kxg8 33. Bd3 $2 (33. Bh5 $17 {was the only chance.}) 33... Bf5 $19 34. Bf1 Kf7 35. a5 (35. Kf4 {is a better defense.}) 35... Ke6 36. Kf4 Kd6 37. Be2 Bc2 38. Bg4 Bb1 39. Bh3 Bc2 40. Bg4 Ng6+ 41. Kg3 Kc7 42. Bh5 (42. Be6 $17) 42... Bf5 43. Bg4 {[#]} Ne7 $2 (43... Bd7 $1 $19 {Threatens to win with ...Ne7.} 44. Bh5 Nf8) 44. Bh5 $2 (44. Bxf5 $1 $11 {and White has nothing to worry.} Nxf5+ 45. Kg4 Nxd4 46. g6) 44... Kd6 45. Kf4 Ke6 46. Be2 Ng6+ 47. Kg3 Ke7 48. Bf1 Nf8 49. Kf4 Bd7 50. Ke3 Ne6 51. f4 Ng7 52. Kd2 Nh5 53. Ke3 Ng3 54. Bd3 $2 (54. Bg2) 54... Nf5+ 55. Bxf5 $2 (55. Ke2 $19) 55... Bxf5 {[%mdl 4096] Endgame KB-KP. Black mates.} 56. Kd2 Kf7 57. Kc3 Kg6 58. b5 cxb5 59. Kb4 Bd7 60. Kc5 {[#]} Bc6 $1 61. Kb4 Kf5 62. Kc5 Be8 63. Kxd5 Kxf4 {Accuracy: White = 60%, Black = 84%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.31"]
[White "Aditya Mittal"]
[Black "Shimanov, Aleksandr"]
[Result "1/2-1/2"]
[ECO "A04"]
[WhiteElo "2427"]
[BlackElo "2587"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,69,0,8,-1,17,25,16,-20,0,0,0,-5,-8,-4,0,0,0,0,-9,-5,14,0,11,0,19,16,14,12,15,11,10,0,52,47,28,38,37,34,49,18,17,14,31,37,59,59,64,57,81,27,32,21,21,7,22,19,10,0,0,0]} 1. Nf3 g6 2. g3 Bg7 3. Bg2 c5 4. c4 Nc6 5. O-O e6 6. Nc3 Nge7 7. e3 {A37: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3.} d5 8. d4 cxd4 9. Nxd4 Nxd4 10. exd4 dxc4 11. Qa4+ Bd7 12. Qxc4 Bc6 13. Bxc6+ bxc6 14. Rd1 Qa5 15. Bf4 Rd8 16. Ne4 $36 {[%mdl 2048] Black is under pressure.} Qd5 17. Qxd5 Nxd5 18. Nd6+ Ke7 19. Nb7 $1 Ra8 20. Bd6+ Kd7 21. Be5 Bf6 (21... f6 $11 22. Bd6 a5) 22. Rac1 Rhc8 23. Nc5+ Ke8 24. Bxf6 Nxf6 25. b3 a5 26. Rc4 Nd7 27. Ne4 {[#] Threatens to win with Nd6+.} Ke7 28. Rdc1 Ra6 29. Kg2 Nf6 30. Nxf6 (30. Nc5 $16 Rb6 31. Nd3) 30... Kxf6 $11 31. Ra4 Rb8 {The position is equal.} 32. Rc5 Rb5 33. f4 Ke7 34. Rac4 Rbb6 35. Ra4 {Accuracy: White = 92%, Black = 95%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.32"]
[White "Zarubitski, Viachaslau"]
[Black "Petrosyan, Manuel"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2432"]
[BlackElo "2590"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,68,0,8,12,13,-2,10,-16,-7,-27,-22,-17,0,-16,-5,-25,-14,-70,-70,-70,-76,-95,-108,-104,-106,-116,-110,-102,-107,-105,-101,-118,-119,-255,-254,-254,-243,-267,-266,-265,-253,-298,-293,-281,-257,-266,-240,-258,-248,-276,-271,-274,-265,-275,-264,-268,-264,-276,-259]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 cxd4 5. Qxd4 a6 6. Bxd7+ Bxd7 7. c4 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} Nf6 8. Nc3 g6 9. b3 {The position is equal.} Bg7 10. Bb2 O-O 11. O-O Bc6 12. Nd5 {[#]} b5 $146 ({Predecessor:} 12... Bxd5 13. exd5 Rc8 14. Qh4 Re8 15. Ng5 h6 16. Nf3 Qd7 17. Rfe1 b5 18. Rac1 bxc4 19. bxc4 {0-1 (42) Gritsayeva,O (2378)-Dordzhieva,D (2340) St Petersburg 2018}) 13. Rfc1 (13. Rfd1 {looks sharper.} Rc8 14. Rac1 bxc4 15. bxc4 Re8 16. Qd3) 13... bxc4 14. Qxc4 ({White should play} 14. bxc4 $11 e5 15. Qe3) 14... Bxd5 $1 $15 15. exd5 Qa5 $1 16. Bxf6 Bxf6 17. b4 Qa4 18. Nd4 Rfb8 19. Rab1 Bxd4 $1 20. Qxd4 a5 {[%cal Rb8b4]} 21. Qe3 Rxb4 ({But not} 21... axb4 22. Qxe7 Qxa2 23. Qxd6 $11) 22. Qxe7 (22. a3 $17 {might work better.} Rxb1 23. Rxb1) 22... Qxa2 $19 23. Ra1 Qxd5 24. Rd1 Rd4 25. Re1 Kg7 26. h4 h5 27. Ra3 Rg4 {[%csl Gg4][%cal Rd5g2] [#]} 28. g3 Rb4 29. Qc7 Rc4 30. Qb6 a4 {Black has a decisive advantage.} 31. Qb2+ Qd4 32. Qxd4+ Rxd4 33. Re7 Kf6 34. Rb7 Ra5 {White got outplayed after the opening. Accuracy: White = 77%, Black = 100%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.33"]
[White "Vaibhav, Suri"]
[Black "Mendonca, Leon Luke"]
[Result "1-0"]
[ECO "A18"]
[WhiteElo "2591"]
[BlackElo "2418"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,93,18,18,18,0,0,0,0,0,17,14,17,17,21,12,26,20,23,14,19,20,27,29,21,21,39,37,93,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,45,0,0,0,57,43,111,118,142,60,68,0,141,128,145,64,202,198,200,194,204,110,126,78,185,191,200,185,179,127,197,144,137,122,133,103,196,158,363,383,534,548]} 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. cxd5 exd5 5. e5 Ne4 6. Nf3 (6. Nxe4 dxe4 7. Qa4+ Nc6 $15) 6... Bf5 {A18: English Opening: Flohr-Mikenas System (1 c4 Nf6 2 Nc3 e6 3 e4).} 7. d3 Nxc3 8. bxc3 {[%cal Bb2c3,Bc3c4][%mdl 32]} c5 {The position is equal.} 9. d4 Qa5 {9...c4 is becoming the main line.} 10. Bd2 {c4 is the strong threat.} Nc6 11. c4 {[%mdl 64] Discovered Attack} Qd8 12. Qb3 Be6 13. Qxb7 Rc8 14. Ng5 Nxd4 {Threatening ...Rb8.} 15. Nxe6 fxe6 16. Rb1 Be7 17. Bd3 Kf7 18. O-O Nc6 {[#]} ({Black should try} 18... Rb8 $14 19. Qa6 (19. Qxa7 Ra8 $14) 19... Rb6 20. Rxb6 (20. Qxa7 Rxb1 21. Rxb1 dxc4 $16) 20... Qxb6) 19. Rfe1 $146 ({Better is} 19. Rfd1 $1 $16) ({Predecessor:} 19. Rfd1 Rc7 20. Qb3 Nd4 21. Qb2 Rd7 22. cxd5 Rxd5 23. Bc4 Rxe5 {½-½ (43) Nepomniachtchi,I (2768)-Anand,V (2771) Batumi 2018}) 19... dxc4 $11 20. Bxc4 {Strongly threatening Bc3.} Qxd2 21. Bxe6+ Kxe6 22. Qb3+ Kd7 23. Rbd1 $36 {[%mdl 2048] White is pushing.} Qxd1 {[%cal Rd1e1]} 24. Qb7+ {[#]} Ke6 $1 {[%cal Rd1e1]} 25. Rxd1 Nd4 26. Qa6+ Kd5 27. Qb7+ Ke6 28. Qa6+ Kd5 29. Qxa7 Ke6 (29... Rhe8 $14) 30. Qa6+ $1 $16 {[%mdl 1024] White has strong compensation.} Kd5 31. Qb7+ (31. f4 $1 $16 g6 32. Qd3) 31... Ke6 $14 32. Qa6+ (32. f4 $14 Rhe8 33. a4) 32... Kd5 $1 $16 33. f4 $1 Rc7 34. Qd3 (34. Qb6 $16 Rhc8 35. Qb3+ c4 36. Qf3+ Kc5 37. Qa3+ Kc6 38. Qa5) 34... Rb8 (34... Kc6 $14) 35. Qf3+ $18 Ke6 {[#]} 36. f5+ $1 {[%mdl 512]} Kd7 ({Don't play} 36... Kf7 37. Qd5+ Kf8 38. f6 $1 $18 {[%mdl 512]}) (36... Nxf5 37. Qd5#) 37. Qg4 ({White should play} 37. Qd5+ $18 Kc8 38. Qg8+ Bd8 39. f6 (39. Qxh7 Rd7 $16)) 37... Kc6 $16 38. Qe4+ Kd7 {[#]} (38... Kb6 $16 {was called for.}) 39. Qd5+ $1 $18 Kc8 {[#]} 40. Qg8+ $1 Bd8 41. Qxh7 (41. Rf1 $18) 41... Rb2 (41... Rd7 $16) 42. Qh3 (42. Qg6 $18) 42... Kb8 $16 43. Qa3 Rb4 44. Qd3 Ra7 (44... Rd7 $16) 45. a3 Rb3 $2 (45... Rb2 $16 46. Qe4 Rd7) 46. Qc4 $18 Raxa3 47. Qg8 {Accuracy: White = 72%, Black = 61%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.34"]
[White "Idani, Pouya"]
[Black "Buksa, Nataliya"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2577"]
[BlackElo "2403"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,91,18,32,27,28,80,72,85,33,30,18,15,11,29,26,70,73,94,58,53,62,53,48,63,67,127,122,126,115,124,116,115,106,144,111,116,112,108,115,118,116,114,101,153,140,222,191,200,197,200,201,201,161,164,0,188,184,302,359,424,411,386,289,691,679,807,807,807,786,29990,29991,29991,29992,29992,29993,29993,29979]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 e5 6. d4 cxd4 7. cxd4 exd4 8. Bf4 Nge7 9. Bd6 a6 {B31: Sicilian: 2...Nc6 3 Bb5 g6.} 10. Bc4 O-O (10... b5 $11 11. Bd5 Bb7) 11. a4 $16 {[%mdl 1024] White has strong compensation.} b6 {[#] White is better.} 12. Qd2 $146 (12. Na3 $16) ({Predecessor:} 12. Nbd2 Na5 13. Ba2 Nb7 14. Ba3 Nc5 15. a5 d6 16. axb6 Bb7 17. e5 Nf5 18. exd6 {1-0 (45) Antunes,A (2405)-Garcia Paolicchi,R (2250) Andorra 1987}) 12... Na5 $14 13. Na3 Nb7 14. Bd5 Nxd5 15. Bxf8 Qxf8 16. exd5 Nc5 {next ...Nb3 is good for Black.} 17. Nxd4 Nxa4 18. Nc4 b5 19. Na5 Qd6 20. Nf3 Nxb2 (20... Bf8 $14) 21. Rfe1 $16 {Hoping for Re8+.} h6 22. Re8+ Kh7 {White should prevent ...Nc4.} 23. Rae1 $1 {[%cal Re1e7] Strongly threatening R1e7.} (23. Rc1 $6 Nc4 $14) 23... Nc4 24. Qd3 $1 {And now Ng5+! would win.} ({Don't take} 24. Nxc4 $6 bxc4 25. Ne5 c3 $14) 24... Bf6 ({Weaker is} 24... Nxa5 25. Ng5+ hxg5 26. Qh3+ Bh6 27. Rh8+ Kg7 28. Qxh6+ Kf6 29. Rhe8 $1 {[%mdl 512]}) 25. Nxc4 bxc4 26. Qxc4 Bb7 27. Rxa8 Bxa8 28. Rd1 Kg7 29. h4 Bb7 ({Better is} 29... h5) 30. h5 Kh7 (30... a5 $16 {was worth a try.}) 31. hxg6+ fxg6 32. Qb3 Ba8 33. Nh2 h5 34. Nf3 Kg7 35. Nh2 $2 ({White should try} 35. Ne1 $18) 35... Qc5 $2 {[#]} (35... Kh7 $1 $11 {and Black is okay.}) 36. Nf1 $1 $18 Bd4 (36... Qb5 $142 37. Qa2 a5) 37. Ne3 a5 38. Qd3 Bxe3 39. fxe3 {[%mdl 4096] Endgame KQR-KQB} ({Not} 39. Qxe3 Qxe3 40. fxe3 Kf6 $16) 39... Bb7 $2 (39... Qb4 40. Rb1 Qc5) 40. Qe4 a4 41. Qe5+ Kh7 42. Rf1 {White threatens Rf7+ and mate.} Kh6 {[#]} 43. Rf7 $1 {White mates.} Qb4 44. Qg7+ Kg5 45. Qf6+ Kh6 46. Rf8 {Accuracy: White = 85%, Black = 55%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.35"]
[White "Pranesh M"]
[Black "Savchenko, Boris"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2425"]
[BlackElo "2573"]
[Annotator "TA"]
[PlyCount "41"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,41,52,58,48,58,58,56,45,86,83,118,73,94,98,111,82,212,200,195,209,267,300,503,423,802,825,793,780,777,748,1203,1177,1508,1447]} 1. e4 d5 2. exd5 Nf6 3. Nf3 Qxd5 4. Nc3 Qd6 5. d4 c6 6. g3 {B01: Scandinavian Defence.} Bg4 7. Bg2 {[#]} Qd8 $146 ({Predecessor:} 7... Nbd7 8. O-O e6 9. h3 Bh5 10. Re1 Be7 11. Bf4 Qb4 12. Rb1 O-O 13. a3 Qa5 {0-1 (37) Alsina Leal,D (2467)-Maghsoodloo,P (2664) chess24.com INT 2019}) 8. h3 {White is slightly better.} Bf5 9. g4 Be6 10. Bf4 h5 {[#]} 11. g5 $1 {[%cal Rg5f6]} Nd5 12. Nxd5 Qxd5 (12... cxd5 $16 13. g6 f6) 13. O-O $18 Qf5 14. Qd2 h4 15. Rfe1 Nd7 $2 {[#]} (15... Bd5 16. Re5 Qc8) 16. d5 $1 {[%mdl 512] White is clearly winning.} cxd5 (16... Bxd5 $142 17. Nd4 Qg6) 17. Nd4 Qg6 18. Nb5 Rc8 19. Qa5 b6 20. Qxa7 Qf5 21. Qb7 {Black did not feel at home in the position after the opening. Accuracy: White = 93%, Black = 30%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.36"]
[White "Sychev, Klementy"]
[Black "Soumya, Swaminathan"]
[Result "1-0"]
[ECO "B62"]
[WhiteElo "2563"]
[BlackElo "2369"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,75,24,30,0,20,24,27,23,33,42,34,35,34,25,34,17,28,12,25,7,5,16,51,0,0,-30,22,0,0,0,10,-47,0,0,0,-126,-109,-113,-70,-161,0,0,0,-326,-311,-283,-55,-82,-61,-38,12,0,0,-51,0,-358,-327,-319,-306,-302,-301,-287,-289,-283]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Bb5 Bd7 8. Qd3 $1 {[%mdl 4] outshines the older 8.Bxc6. B62: Sicilian: Richter-Rauzer: 6...e6: Unusual White 7th moves.} h6 9. Bh4 {[#]} g5 $146 ({Predecessor:} 9... Be7 10. O-O-O Ne5 11. Qe2 O-O 12. f4 Ng6 13. Bg3 a6 14. Bxd7 Nxd7 15. f5 exf5 16. Nxf5 {1-0 (45) Sadhwani,R (2522)-Durarbayli,V (2625) Moscow 2020}) 10. Bg3 {White has an edge.} (10. Bxc6 $5 bxc6 11. Bg3 $11) 10... Nh5 11. O-O-O Nxg3 12. hxg3 Qb6 13. Bxc6 bxc6 14. f4 gxf4 15. gxf4 Rg8 16. g3 O-O-O 17. Nb3 c5 18. Rd2 (18. Nd2 $14) 18... Kb8 19. Rhd1 Be7 (19... Rc8 $142 20. Qf3 Ka8) 20. Kb1 Rc8 {aiming for ...c4.} 21. Qf3 Rc7 22. f5 (22. Qh5 $11 Rxg3 23. Rd3) 22... Re8 23. f6 Bf8 24. Qf4 (24. Ka1 $11 {keeps the balance.}) 24... c4 $17 25. Nc1 {[#]} d5 $1 {[%mdl 512] Hoping for ...d4!} 26. exd5 (26. Qf3 $1 $15) 26... Ba3 $2 (26... e5 $1 $19 27. Qf2 Bc5) 27. b3 $11 cxb3 $40 {[%mdl 128] Black attacks.} (27... e5 $5 28. Qf3 $8 cxb3 29. axb3 Bb4 $11) 28. cxb3 $2 {[%mdl 8192]} (28. axb3 $11 e5 29. Qf3) 28... e5 $19 29. Qf3 {[#]} h5 $2 (29... e4 $1 $19 {[%mdl 512]} 30. Nxe4 Qb4) 30. d6 $15 {[#]} Rc5 $1 {[%mdl 1024] Black has strong compensation.} 31. N1e2 $1 Bg4 32. d7 Rd8 33. Qe3 ({White must play} 33. Qe4 $11 Qc7 34. Qa4) 33... Bb4 ({Black should try} 33... Qxf6 $15 34. Rd5 Rxd5 35. Rxd5 Rxd7 36. Qxe5+ Qxe5 37. Rxe5 Rd2) 34. Nd5 $2 {[%mdl 8192]} (34. Rd5 $11 Rxd5 35. Qxb6+ axb6 36. Rxd5) 34... Rxd5 35. Qxb6+ {Black has a decisive advantage.} axb6 36. Rxd5 Bxe2 37. Rc1 e4 38. Kb2 {[%mdl 32768] Accuracy: White = 60%, Black = 64%. . Sensor Board Error (Ke4/e5)?} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.37"]
[White "Makarian, Rudik"]
[Black "Jumabayev, Rinat"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2414"]
[BlackElo "2646"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,105,19,45,26,31,29,34,30,26,33,32,24,38,29,92,78,96,85,97,52,53,14,16,14,14,16,20,21,10,12,11,12,60,60,60,62,62,62,62,55,55,55,55,55,125,115,146,134,151,153,179,17,135,79,139,129,136,68,68,68,68,68,69,40,40,0,0,0,0,0,0,0,0,0,0,0,40,0,0,0,40,40,40,40,40,46,47,47,66,66,75,0,21,21,21,21]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 a6 6. O-O Nc6 7. Nbd2 {E04: Open Catalan: 5 Nf3.} Nxd4 8. Nxc4 Nxf3+ 9. Bxf3 {White is slightly better.} Be7 10. Qc2 O-O 11. Rd1 Qe8 12. Bf4 Nd5 {[#]} (12... Bd8 $1 $11 {keeps the balance.}) 13. Bxc7 $1 $16 {[%mdl 512]} Qc6 {[#]} (13... Nxc7 14. Nb6) 14. Bb6 $146 ({Predecessor:} 14. Be5 b5 15. Bxd5 exd5 16. Ne3 Qxc2 17. Nxc2 f6 18. Bd4 Be6 19. Ne3 Rac8 20. Rac1 {0-1 (67) Ju,W (2514)-Hou,Y (2629) Beijing 2013}) 14... Bd7 15. Qb3 Qb5 16. Bxd5 exd5 17. Ne3 Qxe2 18. Nxd5 {And now Re1 would win.} Bc6 $1 19. Re1 Bxd5 $1 20. Qxd5 Qxb2 21. Rab1 Qa3 22. Re3 $36 {[%mdl 2048] White is pushing.} Qd6 23. Qxd6 Bxd6 24. Rd1 $1 {[%cal Rd1d6]} Bb8 $1 25. Rd7 Ba7 26. Rxb7 Bxb6 27. Rxb6 $14 {[%mdl 4096] Endgame KRR-KRR} h5 {[#]} (27... Ra7 $14) 28. Ra3 $1 $16 Rfc8 29. Rbxa6 Rxa6 30. Rxa6 {KR-KR} g6 31. Rd6 $2 (31. h4 $18) 31... Rc2 (31... Ra8 $11 {remains equal.}) 32. a3 (32. a4 $142) 32... Rc3 (32... h4 $142) 33. a4 Ra3 34. Rd4 (34. Ra6 $16) 34... Kg7 $14 35. h4 f6 36. Rd7+ Kh6 $1 37. Ra7 {aiming for Ra6.} g5 38. Kg2 gxh4 39. gxh4 Kg6 40. Ra5 Rc3 41. f3 Rc4 42. Kg3 Rb4 43. Ra8 Kf5 44. a5 Ra4 45. a6 Ra3 46. a7 Ra2 47. Rh8 Rxa7 48. Rxh5+ Kg6 49. Rb5 Ra1 50. h5+ Kh6 {[#]} 51. Kf4 (51. f4 $1 $16) 51... Rh1 52. Rb6 Rxh5 53. Rxf6+ {White really could win this. Accuracy: White = 77%, Black = 74%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.38"]
[White "Abdusattorov, Nodirbek"]
[Black "Sadhwani, Raunak"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2644"]
[BlackElo "2522"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,101,26,2,27,27,33,25,28,25,21,29,23,22,22,22,22,26,23,16,14,17,17,14,9,16,20,20,29,37,50,53,48,45,124,115,183,174,174,171,173,182,171,164,166,150,193,175,379,370,418,420,416,187,409,409,397,391,451,260,237,272,272,236,236,237,237,237,337,337,352,352,354,351,326,323,356,321,819,832,694,675,7886,7886,7517,6485,2039,1525]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 c6 9. Qc2 h6 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves.} 10. Re1 Be6 11. cxd5 cxd5 {White has an edge.} 12. Bxe4 dxe4 13. Qxe4 Bd5 14. Qg4 {Threatens to win with Bxh6.} Qd7 15. Qxd7 Nxd7 16. Nc3 Bxf3 17. gxf3 Rfd8 18. Be3 Nf8 {[#]} 19. Red1 $5 $146 {[%mdl 8] An interesting novelty.} ({Predecessor:} 19. Rac1 f5 20. Nb5 Bb4 21. Red1 a6 22. Nc3 Rac8 23. Kg2 Bd6 24. f4 Kf7 25. Ne2 Ng6 26. Kg3 b5 27. Ng1 Ne7 28. Nf3 Rxc1 29. Rxc1 Rc8 {½-½ (29) Hernaez Fernandez,C (2236)-Lemke,B (2220) ICCF email 2019}) 19... Ng6 20. Rac1 $36 {[%mdl 2048] White has good play.} Rac8 21. Ne4 Rxc1 22. Rxc1 Bb8 23. Nc5 b6 24. Nb7 Rf8 {White now steadily converts the win.} (24... Re8 $14) 25. d5 $16 f5 (25... Re8 $16) 26. d6 $18 Ne5 27. Kf1 Nd7 28. Bd4 Re8 29. h4 Kf7 30. h5 g6 31. Rc7 Bxc7 $2 (31... Ke6) 32. dxc7 {[%mdl 4096] Endgame aiming for Nd6+. KRN-KBN} Ke7 {Threatening ...Rc8.} 33. hxg6 {Black must now prevent Nd8.} ({Weaker is} 33. Nd8 Rxd8 34. cxd8=R (34. cxd8=Q+ Kxd8 35. hxg6 Ke7 $16) 34... Kxd8 $16) 33... Nf8 34. g7 (34. Nd8 $142 Kd7 35. g7) 34... Ng6 $2 (34... Ne6 35. Be5 Nxc7) 35. Nd8 Kd7 36. Bf6 Nf4 {[#]} 37. Nf7 (37. c8=R $142 $1 {[%mdl 512]} Kxc8 38. Nf7) 37... Nh5 38. Be5 Rg8 39. Nxh6 Rxg7 40. Nxf5 ({But not} 40. Bxg7 $6 Nxg7 41. Ke2 f4) 40... Rg8 {[#] intending ...Rf8.} 41. Bd6 $1 Rh8 (41... Re8 {was worth a try.} 42. Ne7 Rxe7 43. Bxe7 Kxc7) 42. Ne7 Kxd6 43. c8=Q Rxc8 44. Nxc8+ {KN-KN} Kc5 45. Ke2 ({Don't take} 45. Nxa7 Nf4 $18) 45... a5 46. Ke3 a4 $2 (46... Kc6 47. f4 Kc7) 47. Ke4 {White is clearly winning.} Nf6+ 48. Ke5 Nd5 {If Black can now play ...Nb4 this consolidates a bit.} 49. a3 b5 50. f4 b4 51. f5 {Accuracy: White = 88%, Black = 58%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.39"]
[White "Kozak, Adam"]
[Black "Aravindh, Chithambaram VR."]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2523"]
[BlackElo "2630"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,88,0,12,12,11,5,12,11,13,0,15,0,0,0,20,22,22,23,41,32,33,44,77,81,62,70,70,51,54,44,52,52,81,88,90,39,58,58,92,88,80,84,99,100,92,36,35,-27,0,0,0,-250,-232,-317,-312,-308,-308,-454,-460,-969,-911,-873,-522,-536,-528,-503,-475,-461,0,0,0,0,0,-635,-628,-620,-620,-619,-635,-566,-541]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. h4 c6 6. cxd5 {D90: Grünfeld: 4 Nf3 Bg7 sidelines.} cxd5 7. Bf4 Nc6 8. e3 {The position is equal.} O-O 9. Qb3 Na5 10. Qb4 Nc6 11. Qb3 b6 12. Rc1 Bb7 13. Be2 Na5 {[#]} 14. Qb4 $146 ({Predecessor:} 14. Qa3 Nc4 15. Qb4 Rc8 16. O-O e6 17. Nb5 a5 18. Qb3 Ne4 19. Rc2 h6 20. Nc3 g5 21. hxg5 hxg5 22. Nxe4 gxf4 {½-½ (41) Can,E (2605)-Mchedlishvili,M (2608) Ankara 2018}) 14... Rc8 15. O-O Nc4 16. b3 a5 17. Qa4 $1 Nd6 18. Nb5 Nfe4 19. Nxd6 exd6 20. Bd3 h6 21. Rxc8 Qxc8 22. Qa3 ({White should play} 22. Qb5 $16) 22... Qd8 23. b4 g5 24. hxg5 hxg5 25. Bh2 f5 26. bxa5 bxa5 27. Rc1 ({Better is} 27. Rb1 $16 Bc6 28. Qb3) 27... Rf7 $14 28. Bxe4 (28. Qb3 $14) 28... dxe4 $11 ({Don't play} 28... fxe4 $6 29. Nd2 $14) 29. Nd2 Bf8 30. Nc4 $2 (30. Qb3 $11 {and White is okay.}) 30... d5 $1 $19 {[%csl LRa3,LRc4]} 31. Nd6 Rh7 32. Be5 Qd7 $1 33. Qc5 (33. Qxa5 {was called for.} Bxd6 34. Qb6) 33... Qe6 $1 34. Qb6 {[#]} (34. Ne8 $142 Bxc5 35. Nf6+ Kg7 36. Rxc5) 34... Qh6 $1 {[%csl Gh7][%cal Rh6h1][%mdl 512]} 35. f3 Qh1+ 36. Kf2 Qxc1 37. Nxe4 Qc2+ {[%mdl 64] Double Attack} 38. Kg1 {White threatens Qg6+! and mate.} Rh6 $2 ({Less strong is} 38... dxe4 39. Qg6+ Rg7 40. Bxg7 $19) (38... fxe4 $19 39. Qg6+ Rg7 $1 {[%mdl 512]} 40. Bxg7 Qc1+ 41. Kf2 Qd2+ 42. Kf1 Bxg7 43. Qe8+ Bf8 44. Qe6+ Kg7 45. Qd7+ Kf6 46. Qxb7 Qc1+ 47. Kf2 Qc2+ 48. Kg1 exf3 49. gxf3 Qd1+ 50. Kf2 Qd2+ 51. Kf1 Qxe3 52. Qxd5 Qe6 53. Qxa5 Qc4+ {[%mdl 64] Double Attack} 54. Kg2 Qe2+ 55. Kg1 Qxf3 56. Qd8+ Kg6 57. Qb6+ Kh5) 39. Nf6+ $1 $11 Kf7 40. Qxb7+ Kg6 {( -> ...Qd1+)} 41. Qa6 $2 {[%mdl 8192] [#]} (41. Nh5 $11) 41... Qc4 $1 $19 {[%cal Rc4a6] Black is clearly winning.} 42. Qxc4 dxc4 43. Nd5 Bb4 44. e4 f4 {Accuracy: White = 63%, Black = 85%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.40"]
[White "Shtembuliak, Evgeny"]
[Black "Karthik Venkataraman"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2628"]
[BlackElo "2483"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,91,11,0,12,2,30,20,20,26,97,100,173,172,138,172,146,137,157,172,180,169,173,178,164,158,179,177,154,148,187,180,177,179,218,217,214,218,224,210,251,247,247,248,515,458,707,599,29968,29968,29969,29969,29970,29970,29970,29972,29972,29973,29973,29972,29972,29973,29973,29973,29969,29967,29978,29979,7790,7790,29972,29971]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bb5+ c6 8. Ba4 b5 9. Bb3 b4 10. Qf3 O-O 11. Ne2 bxc3 12. h4 h5 {D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 Nf3.} ({Reject} 12... Bxd4 $6 13. Nxd4 Qxd4 14. Bh6 $16) 13. Qxc3 Ba6 {[#]} 14. e5 $146 ({Predecessor:} 14. Be3 Qb6 15. Rd1 Nd7 16. Rb1 Kh7 17. Bc2 Qc7 18. Bd3 Bb7 19. O-O Rac8 20. Qa3 {1-0 (51) Zambo,Z (2149)-Szava,M (2186) Hungary 2000}) 14... c5 {The position is equal.} 15. Qxc5 Nd7 {[#]} (15... e6 $11 {keeps the balance.}) 16. Qc6 $1 $16 {[%csl LRa6,LRg6][%cal Rc6a6]} Bxe2 (16... Bd3 $16 {keeps fighting.}) 17. Kxe2 $18 Nb6 18. Be3 e6 19. g4 {Black must now prevent gxh5.} Rc8 20. Qb5 hxg4 21. h5 gxh5 22. Rxh5 {And now Qd3 would win.} Nd5 23. Bxd5 $40 {[%mdl 128] White attacks with force.} Qxd5 24. Qxd5 exd5 25. Kd3 f5 26. exf6 Rxf6 27. Rxd5 g3 28. fxg3 Rf3 29. g4 Re8 30. Re1 Rg3 {[#]} 31. g5 $1 Bf8 32. Re5 Rxe5 $2 (32... Rd8 33. Rc1 Bd6) 33. dxe5 {[%mdl 4096] Endgame KRB-KRB} Be7 (33... Bb4 $142) 34. Ke4 Bxg5 35. Bxg5 Rxg5 {KR-KR} 36. Rf1 Rg2 37. a3 Re2+ 38. Kd5 Rd2+ 39. Kc6 Rc2+ 40. Kd7 Rd2+ 41. Ke7 Rd3 42. Rg1+ Kh7 43. a4 {[%cal Ba3a4,Ba4a5][%mdl 32]} Rd4 44. a5 Rd5 45. Kf7 {[%cal Rg1h1]} Kh6 46. Rg6+ {Accuracy: White = 100%, Black = 54%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.41"]
[White "Indjic, Aleksandar"]
[Black "Gadimbayli, Abdulla"]
[Result "1/2-1/2"]
[ECO "E15"]
[WhiteElo "2622"]
[BlackElo "2460"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,120,13,49,45,48,45,63,59,59,32,31,30,28,37,35,41,91,86,77,85,82,85,78,85,76,50,64,57,65,62,61,53,69,69,69,69,69,69,68,33,34,34,34,34,34,27,37,20,37,25,41,25,27,27,29,0,2,0,45,30,34,0,0,0,14,0,8,8,8,8,8,8,8,8,8,0,0,0,0,-21,-21,-25,-16,-22,-19,-24,0,0,8,8,8,8,8,8,91,8,91,8,8,8,91,8,8,8,8,8,8,8,8]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 g6 6. O-O Bg7 7. Nc3 O-O 8. d5 {A50: Queen's Fianchetto Defence (1 d4 Nf6 2 c4 b6).} exd5 9. cxd5 c6 {[%cal Rf6d5]} 10. e4 {White is slightly better.} Re8 11. Nd4 Na6 12. dxc6 dxc6 13. e5 Nd5 {[#]} 14. f4 $146 ({Predecessor:} 14. Nxc6 Bxc6 15. Nxd5 Rxe5 16. Ne7+ Qxe7 17. Bxc6 Rd8 18. Qf3 Nb4 19. Ba4 Rf5 20. Qe3 {½-½ (83) Luong,P (2256)-Doshi,M (2399) Mumbai 2020}) 14... c5 15. Nxd5 $1 Bxd5 16. Nc6 Bxc6 17. Bxc6 Qxd1 18. Rxd1 Red8 19. Bd2 Rab8 20. a3 Nc7 21. Bc3 Ne6 22. Kf2 Nd4 23. Bxd4 Rxd4 24. Rxd4 cxd4 $14 {[%mdl 4096] Endgame KRB-KRB} 25. Ke2 Rc8 26. Ba4 Kf8 27. Kd3 f6 28. exf6 Bxf6 29. Re1 Kg7 30. Bb3 h6 31. Re6 Rc7 32. Rd6 Be7 33. Rd5 Bf6 34. Rd6 Be7 35. Re6 Bf6 36. Bd5 Re7 37. Rc6 Re3+ 38. Kd2 g5 39. Rc7+ Kg6 40. Rxa7 gxf4 41. gxf4 Kf5 42. Rb7 Kxf4 43. Rxb6 Bg5 {Hoping for ...Ke5.} 44. h4 Bxh4 45. Bc4 Bg5 46. Bd3 h5 {And now ...h4 would win.} 47. Rb4 $1 Re7 {With the idea ...h4.} 48. Bg6 h4 {Threatens to win with ...h3.} 49. Rxd4+ Ke5+ 50. Kd3 Re6 (50... Ra7 {keeps more tension.} 51. Be4 h3 52. a4 Ra5 53. b3 h2) 51. Re4+ Kd6 52. Rxe6+ Kxe6 $11 {KB-KB} 53. b4 Kd6 (53... h3 $11) 54. Kc4 ({Better is} 54. Bf5 $1 $16) 54... Kc7 {[#]} (54... h3 $11) 55. Kb5 (55. Bf5 $1 $16) 55... Bc1 56. a4 {[%cal Ba3a4,Ba4a5][%mdl 32]} Bd2 {[#]} (56... h3 $11 {keeps the balance.}) 57. Be4 (57. Bf5 $1 $16) 57... h3 {The position is equal.} 58. a5 h2 59. Ka4 Be1 60. b5 {Black must now prevent b6+.} Bf2 {Accuracy: White = 78%, Black = 84%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.20"]
[Round "2.42"]
[White "Rahul Srivatshav P"]
[Black "Erigaisi Arjun"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2474"]
[BlackElo "2563"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,102,14,18,9,33,22,47,38,48,24,48,31,17,0,16,-44,-47,-93,-39,-120,-122,-134,-59,-73,-77,-97,-97,-93,-81,-81,-64,-64,-64,-58,-64,-70,-56,-113,-118,-139,-152,-197,-177,-283,-269,-333,-273,-271,-272,-265,-265,-439,-434,-369,-295,-468,-406,-471,-482,-513,-504,-527,-508,-549,-516,-716,-696,-756,-733,-772,-757,-931,-921,-859,-834,-1838,-538,-1777,-1617,-2395,-2188,-2468,-2036,-1821,-1663,-1126,-1002]} 1. d4 g6 2. c4 Bg7 3. Nf3 d6 4. e4 Bg4 5. Be2 Nc6 6. Be3 e5 7. d5 Bxf3 8. Bxf3 Nd4 9. Nc3 c5 10. Bg4 {A41: 1 d4 d6: Tartakower System and Modern Defence.} h5 11. Bh3 Nh6 12. O-O {White is slightly better.} O-O 13. f3 Kh7 14. Qd2 f5 15. Ne2 f4 16. Bf2 (16. Bxd4 $11 exd4 17. g3 (17. Nxf4 Qg5 $15)) 16... Nf7 $15 17. b4 b6 ({Better is} 17... Ng5 $17 18. Bxd4 Nxh3+ 19. gxh3 cxd4) 18. Rab1 (18. Kh1 $15) 18... Ng5 $17 19. Nxd4 {[#] Threatens to win with Ne6.} exd4 (19... Nxh3+ $17 20. gxh3 cxd4) 20. Qe2 Rf7 21. bxc5 bxc5 22. Rb3 Nxh3+ 23. gxh3 Qd7 24. h4 Bf6 25. Rfb1 Rg8 26. Kh1 Rgg7 27. Qd3 {White is now going downhill.} (27. Be1 $15) 27... Qe7 28. Rb8 Bxh4 29. Bg1 Bf6 30. Qf1 (30. Bf2 $142) 30... Qd7 $19 31. Ra8 Rg8 32. Rxg8 Kxg8 33. Rb8+ Kh7 34. Kg2 $2 (34. h3) 34... Qa4 35. Qe2 g5 36. h4 (36. h3 $142) 36... gxh4 37. e5 Bxe5 {Black is clearly winning.} 38. Qd3+ Kg7 39. Bf2 Qxa2 40. Kh3 Qa4 ({Inferior is} 40... Qxf2 {[#]} 41. Rg8+ $3 {[%mdl 512]} Kxg8 42. Qg6+ Rg7 43. Qxg7+ Kxg7 $11) 41. Qb1 Qd7+ 42. Kh2 Qf5 43. Qg1+ Kh6 44. Bxh4 Qg6 45. Qf1 Kh7 46. Qg2 Qxg2+ 47. Kxg2 a5 48. Ra8 Rb7 49. Rxa5 Rb2+ 50. Kh3 d3 51. Ra7+ Kg6 {Accuracy: White = 48%, Black = 90%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.1"]
[White "Mamedov, Rauf"]
[Black "Sargsyan, Shant"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2643"]
[BlackElo "2594"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,101,0,0,6,39,0,0,10,8,6,14,10,11,10,7,5,24,27,52,54,77,58,52,44,97,77,85,75,134,142,135,131,144,135,172,156,145,140,153,143,218,227,226,219,209,209,226,231,215,217,219,193,308,293,425,467,435,431,531,570,569,568,539,548,664,640,809,782,760,767,760,758,836,778,707,707,1193,1206,1032,943,867,710,1392,1403,1435,1368]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 d5 7. Bb5 Ne4 8. cxd4 Bb6 9. Nc3 O-O 10. Be3 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} f6 11. exf6 (11. Qb3 {looks sharper.} Nxc3 12. Bxc6 bxc6 13. Qxc3 Bf5 14. a4) 11... Nxc3 12. bxc3 {Black should prevent Bxc6.The position is equal.} Qxf6 13. O-O Bg4 {[%cal Rg4f3]} 14. Be2 $1 Rae8 15. h3 Bh5 16. Qc2 Kh8 {[#]} 17. Rae1 $146 ({Predecessor:} 17. a4 Bg6 18. Bd3 Bxd3 19. Qxd3 Qf5 20. Qxf5 Rxf5 21. Rfe1 Rff8 22. Bf4 Kg8 23. Rxe8 Rxe8 {1-0 (41) Jones,G (2682)-Jakovenko,D (2735) St Petersburg 2018}) 17... Bxf3 18. Bxf3 Ne7 19. Bh5 g6 20. Bg4 {Bh6 is the strong threat.} h5 {Black is now going downhill.} (20... Nf5 $14) 21. Bd7 $16 {[#] aiming for Qd2.} Rd8 22. Bb5 c6 ({Black should play} 22... Nf5) 23. Qd2 Rde8 ({Avoid the trap} 23... cxb5 $2 {[#]} 24. Bg5 $1 $18 {[%mdl 512]}) 24. Bg5 $36 {[%mdl 2048] Black is under strong pressure.} Qf7 25. Bd3 {Hoping for Bxe7.} Nf5 26. g4 Nd6 27. Bh6 Rg8 28. Bf4 Ne4 (28... Nc4 $16 {keeps fighting.} 29. Bxc4 dxc4) 29. Bxe4 $18 Rxe4 30. Rxe4 dxe4 31. Re1 Qd5 32. Be5+ Kh7 33. Qc2 Bd8 34. Rxe4 h4 (34... b5 $142 35. Qe2 Bh4 36. gxh5 gxh5+ 37. Kh2 Kh6) 35. c4 Qf7 (35... Qd7 {is a better defense.} 36. Qd3 Rf8) 36. Rf4 {White is clearly winning.} Qd7 37. c5 {And now Qb3 would win.} Bc7 38. Qb3 {White wants to mate with Rf7+.} Bxe5 39. dxe5 {[%mdl 4096] Endgame Strongly threatening Rf7+. KQR-KQR} Rg7 40. g5 {[%cal Rf4h4]} Re7 41. Rf8 {[%csl Gf8][%cal Rb3g8]} ({Weaker is} 41. Rxh4+ Kg7 $18) 41... Qd5 42. Qxd5 cxd5 {KR-KR} 43. f4 Kg7 44. Rd8 Kf7 45. Kf2 Rc7 46. Rxd5 Ke6 47. Rd6+ Kf7 48. Kf3 Rxc5 49. Rd7+ Ke6 50. Rxb7 Ra5 51. Rg7 {Accuracy: White = 97%, Black = 55%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.2"]
[White "Zhou, Jianchao"]
[Black "Sethuraman, S.P."]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2622"]
[BlackElo "2641"]
[Annotator "TA"]
[PlyCount "45"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,32,21,0,0,0,0,0,0,0,0,0,6,6,13]} 1. g3 d5 2. Nf3 Nf6 3. Bg2 c5 4. O-O g6 5. c4 Bg7 6. cxd5 Nxd5 7. d4 cxd4 8. Nxd4 O-O 9. Nb5 Be6 10. Nd4 Bc8 11. Nb5 {The position is equal.} Be6 {D73: Fianchetto Grünfeld: 5 Nf3 .} 12. Bxd5 Bxd5 ({Much worse is} 12... Qxd5 $6 13. Qxd5 Bxd5 14. Nc7 $16) 13. N1c3 Bxc3 14. Nxc3 Be6 $1 15. Bh6 Qxd1 16. Rfxd1 Rc8 {[#] Not much happened in this game.} {Predecessor:} 17. Nd5 $146 Nc6 18. Rac1 Rd8 19. Nc7 Rxd1+ 20. Rxd1 Rd8 21. Rxd8+ Nxd8 22. Nxe6 Nxe6 23. Bd2 {½-½ (36) Goganov,A (2575)-Svidler,P (2740) Nizhnij Novgorod 2013} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.3"]
[White "Artemiev, Vladislav"]
[Black "Cordova, Emilio"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2728"]
[BlackElo "2593"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,92,19,0,0,-18,7,0,27,11,56,27,59,58,64,61,60,70,68,61,68,70,73,64,66,73,81,81,88,88,87,81,93,71,91,72,99,75,85,71,90,59,73,81,95,97,91,99,147,137,150,113,110,118,100,89,102,102,95,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 c5 5. O-O g6 6. Nc3 Bg7 7. d4 cxd4 8. Nxd4 Bxg2 9. Kxg2 Nc6 10. Nc2 {was the old line (10.Nxc6).} O-O 11. e4 Ne8 $5 {[%mdl 4] Exploring less charted territory. A30: Symmetrical English: Double Fianchetto and Hedgehog.} 12. Qe2 {[#]} Rc8 $146 ({Predecessor:} 12... Qc8 13. Bd2 Qb7 14. f3 Nd6 15. Bf4 Ne5 16. Nd5 e6 17. Nde3 Rfc8 18. b3 a6 19. Rad1 {½-½ (44) Loginov,V (2355)-Zagrebelny,S Tashkent 1986}) 13. Bd2 a6 14. Rad1 d6 15. b3 Nb8 16. Rc1 e6 17. Nb4 Qd7 18. Rfd1 Qb7 19. f3 Nd7 20. Nd3 Ne5 21. Nxe5 Bxe5 22. Bh6 Bg7 23. Bxg7 Kxg7 24. Qe3 f6 25. Ne2 Rf7 26. Nf4 Re7 27. h4 Kg8 28. b4 Rc6 29. Qb3 Qc8 30. Rc3 Rec7 {[%cal Rc6c4]} 31. Rdc1 b5 {[%cal Rc6c4]} 32. c5 $1 dxc5 33. bxc5 Kh8 34. Nd3 Rd7 35. R1c2 Rd4 36. Nb4 Rc7 {Black wants to play ...a5.} 37. Rd3 Rxd3 38. Nxd3 e5 39. Qa3 (39. Qc3 $16) 39... Nd6 $1 $11 {[%mdl 64] [#] Pin. The position is equal.} 40. Nb2 Nc4 41. Nxc4 Rxc5 {[%mdl 64] Pin} 42. Ne3 Rxc2+ 43. Nxc2 Qxc2+ 44. Kg1 {[%cal Ra3f8] [#]} Qd1+ 45. Kf2 $1 {[%cal Ra3f8]} Qd4+ 46. Kg2 $1 {[%cal Ra3f8]} Qd2+ {Accuracy: White = 86%, Black = 90%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.4"]
[White "Can, Emre"]
[Black "Sjugirov, Sanan"]
[Result "1/2-1/2"]
[ECO "D12"]
[WhiteElo "2600"]
[BlackElo "2674"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,84,28,31,31,30,38,35,23,23,14,21,18,14,12,12,12,31,28,41,41,35,30,31,31,39,44,39,33,40,34,46,0,65,65,72,72,71,69,66,0,0,0,0,0,0,0,0,0,0,-4,12,32,54,46,68,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. e3 Bf5 5. Nc3 e6 6. Nh4 Be4 7. f3 Bg6 8. Qb3 Qc7 9. Bd2 {D12: Slav Defence: 3 Nf3 Nf6 4 e3 Bf5.} Be7 10. Nxg6 hxg6 11. cxd5 {White is slightly better.} cxd5 12. O-O-O Nc6 13. Kb1 a6 14. Rc1 Rc8 15. Bd3 Nd7 16. Ne2 b5 17. a4 $1 bxa4 18. Qxa4 Nb6 19. Qxa6 {[#] Rxc6! is the strong threat.} Ra8 20. Qb5 Kd7 $1 21. Qb3 {Threatens to win with Rxc6!} Qa7 22. Bb5 ({Much worse is} 22. Rxc6 Kxc6 23. Rc1+ (23. Kc2 Kc7 $17) 23... Kb7 $17) 22... Rhc8 $1 {[#] With the idea ...Nc4!} 23. Kc2 $146 ({Predecessor:} 23. Rhe1 Nc4 24. Rxc4 dxc4 25. Qxc4 Kd8 26. Bxc6 Rxc6 27. Qxc6 Qa2+ 28. Kc2 Rc8 29. Qxc8+ Kxc8 {½-½ (29) Mueller,G (2395)-Paap,M (2234) ICCF email 2017}) 23... Nc4 (23... Rab8 $11) 24. Ra1 $1 $14 {[%cal Ra1a7]} ({Wrong is} 24. Bxc4 $2 dxc4 25. Qb5 Rab8 $19) 24... Qc7 {Black wants to play ...Rab8.} 25. Rxa8 ({Avoid the trap} 25. Bxc4 $2 dxc4 26. Qb5 Rcb8 $19) 25... Rxa8 26. Rc1 Nd6 {[#] And now ...Rb8 would win.} 27. Kb1 (27. Ba4 $1 $14) 27... Nxb5 $11 28. Qxb5 Rb8 29. Qa4 Qb7 {[%csl Gb8][%cal Rb7b2]} 30. Bc3 Ra8 31. Qd1 $1 Qb5 32. Kc2 Ra2 {Strongly threatening ...Nb4+.} 33. Rb1 Bb4 34. Qd3 Qb8 35. f4 (35. Nc1 $1 $14 Ra7 36. h3) 35... Bxc3 {The position is equal.} 36. Qxc3 Ra7 37. Kd1 Qb5 38. Rc1 Ra2 39. Rc2 Ra1+ 40. Rc1 Ra2 41. Rc2 Ra1+ 42. Rc1 Ra2 {Accuracy: White = 91%, Black = 96%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.5"]
[White "Sarana, Alexey"]
[Black "Vaibhav, Suri"]
[Result "1/2-1/2"]
[ECO "C78"]
[WhiteElo "2656"]
[BlackElo "2591"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,71,37,12,32,27,41,25,38,27,29,25,18,18,10,0,12,-34,-34,-39,-11,-39,-30,-39,-32,-43,-34,-45,-62,-52,-20,-12,-14,-16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. c3 b5 7. Bb3 d6 8. a4 {[#] Threatens to win with axb5. is now debated instead of 8.d4.} Bb7 {C78: Ruy Lopez: Archangelsk and Möller Defences.} 9. d4 Bb6 10. Bg5 h6 {White has an edge.} 11. Bxf6 Qxf6 12. Bd5 O-O 13. dxe5 dxe5 14. Na3 Rad8 {[#]} 15. Qc2 $146 ({Predecessor:} 15. Qe2 bxa4 16. Nc4 Bc8 17. Ne3 Ne7 18. Bc4 a5 19. Rxa4 Kh8 20. Raa1 Qf4 21. Bd3 {1-0 (37) Smirnov,P (2623)-Shinkevich,V (2503) St Petersburg 2006}) 15... Bc8 16. Bxc6 Qxc6 17. axb5 axb5 18. Nxe5 Qe6 19. Nf3 Bb7 20. Rae1 Rfe8 {[%cal Rb7e4]} 21. Nd2 f5 {[%cal Rf5e4]} 22. Nxb5 {The position is equal.} fxe4 23. Nd4 $1 {[%cal Rd4e6]} Qd5 {Hoping for ...c5.} 24. Re3 $1 Bxd4 25. cxd4 c5 26. Rfe1 {[%cal Rd2e4]} cxd4 27. Rxe4 d3 28. Qc4 $1 (28. Rxe8+ $2 {too greedy.} Rxe8 29. Rxe8+ {[#]} Kh7 $1 $19 {[%mdl 512]}) 28... Rxe4 29. Rxe4 {Rd4 is the strong threat.} Rc8 30. Qxd5+ Bxd5 $11 {[%mdl 4096] Endgame KRB-KRN} 31. Re1 Rc2 32. Rd1 $1 Rxb2 33. f3 Kf7 34. Ne4 Bxe4 35. fxe4 Re2 36. Rxd3 {Accuracy: White = 91%, Black = 95%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.6"]
[White "Puranik, Abhimanyu"]
[Black "Adhiban, B.."]
[Result "1/2-1/2"]
[ECO "A20"]
[WhiteElo "2597"]
[BlackElo "2654"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,105,9,18,10,18,22,18,20,40,0,0,-14,-18,-14,0,-18,-19,-10,-11,-16,-16,-16,-17,-34,-34,-37,-35,-39,-37,-49,-9,-9,-7,-14,-12,-17,-7,-7,-7,-8,-8,-12,-9,-10,-10,-15,-8,-8,-8,-8,-8,-10,-5,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 e5 2. g3 c6 3. d4 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 d6 6. Bg2 Nf6 7. Nc3 O-O 8. e3 {A20: English Opening: 1...e5.} Nbd7 9. Nge2 Re8 10. O-O e4 11. f3 exf3 12. Rxf3 Nb6 13. b3 Bg4 {[#]} 14. Rf4 $146 (14. Rf2 {feels hotter.} d5 15. cxd5 Bxe2 16. Rxe2 Nbxd5 17. e4) ({Predecessor:} 14. Rf2 d5 15. c5 Bxe2 16. Rxe2 Nbd7 17. b4 Re7 18. Rae1 Nf8 19. e4 dxe4 20. Nxe4 Nxe4 21. Bxe4 {½-½ (32) Movsesian,S (2715)-Navara,D (2705) Sibenik 2011}) 14... d5 15. cxd5 Bxe2 16. Qxe2 ({Reject} 16. dxc6 Ba6 $17) 16... Nbxd5 17. Nxd5 Nxd5 18. Rf3 {[#]} f5 $1 {[%mdl 512]} 19. Re1 (19. Rxf5 Nxe3) 19... g6 20. Qd3 Kg7 21. Rff1 $1 Qd6 22. e4 {The position is equal.} fxe4 23. Bxe4 Nf6 24. Bg2 Rad8 25. Rxe8 Rxe8 26. Qc3 Re2 27. Rf2 Re6 28. Bf3 h5 29. b4 Nd5 30. Bxd5 $1 Qxd5 $11 {[%mdl 4096] Endgame KQR-KQR} 31. b5 Re4 32. bxc6 bxc6 33. Qb4 {[#] Strongly threatening Qf8+.} Re8 ({Not} 33... Qxd4 $2 34. Qf8+ Kh7 35. Kg2 $18) 34. Qb7+ Kh6 {( -> ...Re1+)} 35. Qxa7 Re1+ 36. Rf1 Re2 {[%csl Ge2][%cal Rd5g2]} 37. Rf2 Re1+ 38. Rf1 Rxf1+ 39. Kxf1 {KQ-KQ} Qh1+ 40. Kf2 Qxh2+ 41. Kf3 Qh1+ 42. Kf2 Qh2+ 43. Kf3 g5 {aiming for ...g4+.} 44. Qc7 Qh1+ 45. Ke3 Qe1+ 46. Kd3 Qd1+ 47. Ke3 Qc1+ 48. Ke4 {Threatens to win with Qd6+.} Qc2+ 49. Ke3 $1 Qc1+ 50. Ke4 {Black must now prevent Qd6+.} Qe1+ 51. Kd3 Qb1+ 52. Ke3 Qc1+ 53. Ke4 {Accuracy: White = 97%, Black = 97%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.7"]
[White "Kovalev, Vladislav"]
[Black "Idani, Pouya"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2650"]
[BlackElo "2577"]
[Annotator "TA"]
[PlyCount "134"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,134,29,0,0,0,12,0,0,0,0,0,2,-1,0,6,0,-51,-10,-18,-6,-42,-37,-60,-62,-45,-7,-50,-52,-45,-51,-47,-58,-70,-73,-73,-71,-75,-65,-77,-93,-74,-58,-93,-92,-108,-100,-120,-96,-102,-97,-102,-106,-100,-76,-76,-73,-77,-76,-132,-54,-132,-59,-127,-86,-86,-75,-60,-58,-47,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-77,-77,-61,0,-23,-31,-58,-67,-767,-793,-29951,-29952,-29955,-29954,-29949,-29952,-29953,-29957,-29958,-29954,-29961,-29962,-29962,-29961,-29963,-29964,-29964,-29964,-29963,-29966,-29967,-29965,-29961,-29966,-29963,-29965,-29976,-29977,-29977,-29978,-29978,-29979,-29982,-29982,-29982,-29983]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Qf3 g6 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} 7. h3 Bg7 8. Be3 Bd7 {The position is equal.} 9. O-O-O Nc6 10. Nxc6 Bxc6 11. Bd4 O-O 12. g4 {[#]} b5 $146 ({Predecessor:} 12... Qa5 13. Qe3 Nd7 14. Bxg7 Kxg7 15. h4 Qc5 16. Qd2 h6 17. Bd3 Ne5 18. Qe2 b5 {1-0 (59) Sidhant,M (2357)-Dahale,A (2097) Udaipur 2019}) 13. Be2 (13. g5 $11 Nh5 14. Qe3) 13... Qc8 14. Nd5 Qe6 15. Rhe1 Bh6+ 16. Be3 $1 {[%cal Re3h6]} Bxe3+ 17. Qxe3 Nxe4 18. Bc4 bxc4 19. Qxe4 Bxd5 $1 20. Rxd5 Ra7 21. f4 Qxe4 22. Rxe4 $15 {[%mdl 4096] Endgame KRR-KRR} Rc8 23. Kd2 Rc6 24. f5 Kg7 25. Kc3 Rac7 26. g5 gxf5 27. Rxf5 e6 28. Rf6 Rc5 29. h4 d5 30. Re1 Rb5 31. a3 {[#]} d4+ $1 {[%mdl 512]} 32. Kxd4 Rxb2 33. Rf2 c3 34. Re5 (34. Kd3 $142) 34... Rb6 ({Black should try} 34... Rb1 $17 35. Kd3 Rd1+ 36. Ke3 Rc4) 35. Ke3 (35. h5 $15) 35... Rd6 (35... Rb1 $17 36. Kf3 Rd1) 36. Re4 (36. h5 $15) 36... Rd5 37. Ra4 Rcd7 38. Rxa6 Re5+ 39. Kf4 Rd2 {Strongly threatening ...Rf5+.} 40. Kxe5 {Hoping for Rxd2.} Rxf2 $11 {KR-KR} 41. Kd4 Rxc2 42. Ra4 Rc1 43. Kd3 h6 44. gxh6+ Kxh6 45. Rc4 (45. Re4 $1 $11) 45... Ra1 $17 46. Ra4 Rc1 47. Rc4 Kh5 48. a4 f5 49. Rxc3 $2 {[%mdl 8192] Now White is beyond hope.} (49. Rf4 $15) 49... Ra1 $19 50. Rc8 Rxa4 {Black mates.} 51. Rh8+ Kg4 52. h5 e5 53. h6 Ra3+ 54. Ke2 Rh3 55. h7 Kf4 56. Kf2 Rh6 57. Kg2 Rg6+ 58. Kf2 {[#]} Rg7 $1 {[%cal Rg7b7]} 59. Kf1 e4 60. Ke2 Ra7 61. Kf2 e3+ 62. Ke2 Ra2+ 63. Kd3 Rd2+ 64. Kc3 Rd7 65. Kc2 Rf7 66. Kd3 Kf3 67. Re8 Rd7+ {Accuracy: White = 73%, Black = 88%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.8"]
[White "Paravyan, David"]
[Black "Wagner, Dennis"]
[Result "1-0"]
[ECO "A50"]
[WhiteElo "2629"]
[BlackElo "2590"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,69,11,4,29,6,30,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-48,19,32,79,79,72,69,104,82,147,157,167,165,162,156,203,205,244,240,182,194,292,287,734,731,706,704,1155,1138,1131,1131,1222,1205,1231,1212,1237,1235]} 1. d4 Nf6 2. c4 g6 3. h4 c5 4. d5 d6 5. Nc3 Bg7 6. e4 O-O 7. Be2 e6 8. h5 exd5 {E73: King's Indian: Averbakh Variation without 6...c5.} 9. exd5 Re8 10. h6 Bh8 {The position is equal.} 11. Bg5 Qb6 12. b3 Ne4 13. Nxe4 Rxe4 14. Rc1 {[#]} Na6 $146 ({Predecessor:} 14... Nd7 15. Kf1 Re8 16. Rh4 Ne5 17. g3 a6 18. Kg2 Qa5 19. a4 Bf5 20. Nh3 Bxh3+ 21. Rxh3 {1-0 (30) Grischuk,A (2759)-Gelfand,B (2686) Amsterdam 2019}) 15. Rh4 Rxh4 16. Bxh4 Bf5 17. Bg4 Re8+ ({Black should play} 17... Bxg4 $15 18. Qxg4 Nb4) 18. Kf1 $11 Bxg4 19. Qxg4 {Qd7 is the strong threat. White now steadily converts the win.} f5 20. Qd1 Re4 21. Bg5 Nb4 {[#]} (21... Qa5 $142) 22. f3 $1 $40 {[%cal Rf3e4][%mdl 128] Black is in trouble.} Re8 {[#]} 23. Qd2 $1 Qc7 24. Nh3 Qd7 25. Nf4 b6 26. Ne6 Na6 27. Re1 Be5 (27... b5 {was necessary.} 28. Bf4 Bf6) 28. a3 Rc8 $2 (28... Nb8 29. Re2 Qf7) 29. f4 $18 {White is clearly winning.} Bh8 {[#]} 30. Ng7 $1 {[%mdl 512]} Bxg7 31. Re7 Qxe7 32. Bxe7 Bxh6 33. Qe3 {Threatening mate with Qe6+!} Nc7 34. Bxd6 Re8 35. Qh3 {Accuracy: White = 92%, Black = 45%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.9"]
[White "Deac, Bogdan-Daniel"]
[Black "Sychev, Klementy"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "2626"]
[BlackElo "2563"]
[Annotator "TA"]
[PlyCount "36"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,36,20,26,24,22,9,13,7,4,9,14,4,11,0,0,0,0,0,0,0,0,3,4,7,8]} 1. c4 c5 2. Nf3 Nf6 3. Nc3 e6 4. e4 Nc6 5. Be2 d5 6. exd5 exd5 7. d4 cxd4 8. Nxd4 {A34: Symmetrical English: 2 Nc3, lines with ...d5.} dxc4 9. Nxc6 {[%csl Gc6][%cal Rd1d8] [#]The position is equal.} Qxd1+ 10. Nxd1 {Nd4 is the strong threat.} bxc6 11. Bxc4 Nd5 {[#]} 12. Bd2 $146 ({Predecessor:} 12. O-O Be6 13. b3 Be7 14. Bd2 O-O 15. Ba5 Rfe8 16. Re1 h6 17. Rb1 Bf6 18. Rc1 {½-½ (33) Nihal,S (2551)-Kuzubov,Y (2660) Ankara 2018}) 12... Be6 13. Rc1 Be7 14. Ne3 O-O 15. O-O a5 16. Rfd1 Rfd8 17. Nxd5 cxd5 18. Bb5 a4 {A rather calm draw. Accuracy: White = 100%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.10"]
[White "Aleksandrov, Aleksej"]
[Black "Durarbayli, Vasif"]
[Result "1/2-1/2"]
[ECO "D10"]
[WhiteElo "2592"]
[BlackElo "2625"]
[Annotator "ChessBase"]
[PlyCount "19"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/6000+30:20/3000+30:900+30"]

1. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} c6 {[%emt 0:00:00]} 3. cxd5 {[%emt 0:04:12]} cxd5 {[%emt 0:00:01]} 4. Bf4 {[%emt 0:00:04]} Nc6 {[%emt 0:00:16]} 5. e3 {[%emt 0:00:16]} Nf6 {[%emt 0:00:10]} 6. Bd3 {[%emt 0:00:10]} Bg4 {[%emt 0:00:18]} 7. Ne2 {[%emt 0:00:20]} e6 {[%emt 0:00:16]} 8. Nbc3 {[%emt 0:08:16]} Bd6 {[%emt 0:03:43]} 9. Bxd6 {[%emt 0:09:09]} Qxd6 {[%emt 0:00:26]} 10. O-O {[%emt 0:00:14]} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.11"]
[White "Zvjaginsev, Vadim"]
[Black "Zanan, Evgeny"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "2623"]
[BlackElo "2500"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,103,16,27,7,7,0,1,0,7,12,7,5,10,10,14,6,20,10,8,12,14,8,26,22,25,12,22,0,13,0,0,-4,0,0,0,-18,0,-52,-6,-18,0,0,0,0,6,6,8,7,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,1,1,1,1,0,8,8,8,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 d6 6. c3 h6 7. a4 {[#] aiming for b4. C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} a5 8. Na3 O-O 9. Nc2 (9. Re1 {with more complications.} Ne7 10. Nc2 c6 11. d4 exd4 12. cxd4 Bb6 13. Bd3) 9... Re8 (9... Ne7 {feels hotter.} 10. Re1 Bb6 11. Be3 c6 12. d4 Nxe4 13. dxe5 d5) 10. Be3 Bxe3 11. Nxe3 Be6 {[#]} 12. Bb5 $146 ({Predecessor:} 12. Bxe6 Rxe6 13. Nd5 Re8 14. Re1 Nxd5 15. exd5 Ne7 16. d4 Nxd5 17. dxe5 dxe5 18. Nxe5 {½-½ (33) Xu,Y (2522)-Zhou,J (2616) Xinghua 2018}) 12... Bd7 13. Qb3 Rb8 14. Rad1 Ne7 15. Bc4 Rf8 16. Qc2 c6 17. d4 Qc7 18. Rfe1 b5 {[#] Threatens to win with ...exd4.} 19. Bf1 Rfe8 20. axb5 cxb5 21. c4 exd4 22. Nxd4 {[%cal Rc4b5]} bxc4 23. Bxc4 Qb7 24. Nf3 (24. b4 $11) 24... Qxe4 25. Qd2 {The position is equal.} Ng6 26. Qxa5 Rxb2 27. Rxd6 Ne5 28. Nxe5 Qxe5 29. Qxe5 Rxe5 30. Red1 {Black must now prevent Rxf6!} Be6 {With the idea ...Rxe3!} 31. Bxe6 Rxe6 32. Rxe6 fxe6 $11 {[%mdl 4096] Endgame KRN-KRN} 33. Rd8+ Kf7 34. g3 Rb1+ 35. Kg2 Rc1 36. h4 g5 37. Rd4 Rc5 38. Ra4 gxh4 39. Rxh4 h5 40. Ra4 Kg6 41. Ra6 e5 42. Kh3 Kg5 43. Ra8 Kg6 44. Ra7 Ne4 45. Kg2 Nf6 46. Kf3 Rb5 47. Re7 Rc5 48. Re6 Kg5 49. Ke2 Kg6 50. Kf3 Kg5 51. Kg2 Ng4 52. Nxg4 {Not much happened in this game. Accuracy: White = 98%, Black = 97%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.12"]
[White "Petrosyan, Manuel"]
[Black "Jobava, Baadur"]
[Result "1/2-1/2"]
[ECO "D12"]
[WhiteElo "2590"]
[BlackElo "2620"]
[Annotator "TA"]
[PlyCount "43"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,43,31,30,59,52,72,45,68,42,77,47,56,52,46,43,52,39,35,29,38,32,46,37,44,0,0,0,0,7,7,7,7,0,10,2]} 1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. e3 Bf5 5. Nc3 e6 6. Nh4 g6 {Recently 6...Be4 got a lot of attention. D12: Slav Defence: 3 Nf3 Nf6 4 e3 Bf5.} 7. f3 h5 {[#]} 8. g3 $146 ({Predecessor:} 8. Qb3 Qe7 9. Nxf5 gxf5 10. Be2 Qc7 11. cxd5 cxd5 12. e4 dxe4 13. d5 Nxd5 14. Nxd5 exd5 15. Qxd5 {0-1 (55) Neale,M (1969)-Ilonen,I (2033) ICCF email 2015}) 8... Nbd7 {White is slightly better.} 9. Qe2 Nb6 10. cxd5 exd5 11. Nxf5 gxf5 12. Qc2 h4 $1 13. Rg1 hxg3 14. hxg3 Rh5 15. Bd2 Qd7 16. O-O-O Nc4 17. Bd3 O-O-O {The position is equal.} 18. Rh1 {[#] Strongly threatening Rxh5.} Kb8 $1 19. Rxh5 Nxh5 20. Bxc4 dxc4 21. Ne2 Bd6 22. Qxc4 {Accuracy: White = 84%, Black = 84%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.13"]
[White "Sindarov, Javokhir"]
[Black "Kobalia, Mikhail"]
[Result "1/2-1/2"]
[ECO "C65"]
[WhiteElo "2537"]
[BlackElo "2609"]
[Annotator "TA"]
[PlyCount "109"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,109,8,23,0,8,5,12,0,30,29,25,22,9,10,12,6,18,22,31,31,29,29,32,27,34,13,34,33,34,33,33,43,43,26,29,8,12,6,6,10,9,9,9,0,31,31,31,32,45,47,66,66,66,66,66,66,66,66,66,66,66,66,69,50,50,50,58,58,58,58,58,58,58,0,58,0,58,58,58,58,58,21,21,21,57,45,58,58,58,58,58,37,37,37,59,59,59,37,37,37,44,37]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. c3 d5 6. Nbd2 {C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5.} O-O 7. O-O dxe4 8. dxe4 {The position is equal.} a5 $1 {[%mdl 4] now scores much better than the old 8...Qe7. Played by Santosh Gujrathi Vidit in November 2019.} 9. Bxc6 bxc6 10. Nxe5 Re8 11. Nb3 {[#] Black must now prevent Qxd8.} Qxd1 12. Rxd1 Bb6 13. Nc4 Nxe4 14. Nxb6 cxb6 15. f3 Nc5 16. Nxc5 bxc5 17. Bf4 Bf5 18. Rd6 Re6 19. Rad1 h5 {[#]} 20. Rd8+ $146 ({Predecessor:} 20. Kf2 a4 21. Rd8+ Re8 22. Rxe8+ Rxe8 23. Rd6 Rb8 24. Bc1 Rc8 25. b3 axb3 26. axb3 Bc2 27. b4 cxb4 28. cxb4 Ba4 29. Be3 Re8 30. Bb6 Re6 31. Rxe6 {½-½ (31) Karjakin,S (2748)-So,W (2763) Riga 2019}) 20... Re8 21. Rxa8 (21. Bc7 {is more complex.} a4 22. Rxa8 Rxa8 23. Rd8+ Rxd8 24. Bxd8 f6 25. Bb6) 21... Rxa8 $14 {[%mdl 4096] Endgame KRB-KRB} 22. Re1 f6 23. Re7 a4 24. a3 Rd8 25. Kf2 Rd1 26. Re1 (26. h4 {keeps more tension.} c4 27. Re8+ Kh7 28. Rb8 Bc2 29. Kg3) 26... Rxe1 (26... Rd8 {feels hotter.} 27. Re7) 27. Kxe1 $11 {KB-KB} c4 28. Kd2 Kf7 29. Ke3 c5 30. Bd6 Bc2 31. Bxc5 Bb3 32. Kd4 Ba2 33. Bd6 Ke6 34. Bf4 Bb3 35. Bc1 Kd6 36. g4 hxg4 37. fxg4 Ke6 38. h4 Kd6 39. Bd2 Ke6 40. Bf4 Ba2 41. Bd2 Bb3 42. Bc1 Kd6 $1 43. Bf4+ Ke6 44. Kc5 Ba2 45. Be3 Ke5 46. h5 Ke6 47. Bd4 {White is slightly better.} Kf7 48. Kd5 Bb3 49. Be3 Ba2 50. h6 gxh6 51. Bxh6 Bb3 52. Bc1 Ke7 53. g5 fxg5 54. Bxg5+ Kd7 55. Bf4 {Accuracy: White = 98%, Black = 95%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.14"]
[White "Svane, Rasmus"]
[Black "Visakh N R"]
[Result "1/2-1/2"]
[ECO "A04"]
[WhiteElo "2608"]
[BlackElo "2518"]
[Annotator "TA"]
[PlyCount "133"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,133,18,13,0,8,6,17,0,8,0,21,19,13,13,16,24,25,12,22,11,6,0,0,0,41,33,65,75,87,84,79,81,93,93,102,100,95,71,74,78,83,77,76,64,73,63,61,62,73,77,84,81,89,70,63,61,77,54,61,52,59,61,60,52,61,50,69,61,75,45,43,43,54,42,54,38,52,43,46,45,51,42,44,43,46,45,50,46,46,43,56,46,47,47,49,52,47,31,35,0,0,0,9,9,18,18,18,18,18,18,18,18,18,18,18,18,18,11]} 1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. e3 Nf6 5. d4 cxd4 6. exd4 d5 7. cxd5 Nxd5 8. Qb3 e6 9. Bb5 Bg7 10. O-O {A35: Symmetrical English: 2 Nc3 Nc6 3 Nf3.} O-O 11. Bxc6 bxc6 12. Re1 $1 {[%mdl 4] outshines the older 12.Na4. Played by Anish Giri in November 2019.} Qc7 13. Bd2 Rb8 14. Qa3 {[#]} Nxc3 $146 ({Predecessor:} 14... Qe7 15. Qxe7 Nxe7 16. b3 Nf5 17. Rad1 Nxd4 18. Nxd4 Bxd4 19. Ne4 c5 20. Bf4 Rb7 {½-½ (29) Gledura,B (2615)-Safarli,E (2657) Brest 2018}) 15. Bxc3 Qb7 16. Qd6 Qa8 17. Ne5 Rb5 18. Nxc6 {Hoping for d5!} Bb7 19. d5 Bxc6 $1 20. Bxg7 Rd8 21. Qe7 $36 {[%mdl 2048] White has good play.} Rdxd5 22. Bc3 Qd8 {[#]} 23. Rxe6 $1 {[%mdl 512] Strongly threatening Qxd8+.} Qxe7 (23... fxe6 24. Qg7#) 24. Rxe7 Rb7 25. Re3 g5 26. Rae1 {Threatening mate with Re8+!} h6 27. h3 Kh7 28. Rf3 Rd6 29. Rf5 Kg6 30. Ra5 Bd7 31. Re4 a6 32. Rc5 Be6 33. a4 Rbd7 34. Rb4 Rd8 35. Kh2 Rc8 36. Re5 Rdc6 37. Ra5 Rd8 38. Kg3 Rd5 39. Rxd5 Bxd5 $14 {[%mdl 4096] Endgame KRB-KRB} 40. Rb8 f6 41. f3 h5 42. Kf2 Re6 43. Rb4 h4 44. Rd4 Bc6 45. Bd2 Re5 46. Rc4 Bd7 47. Be3 Re6 48. Rd4 Be8 49. b3 Rc6 50. Rd2 Rc3 51. Rd8 Kf7 52. Rb8 Rc2+ 53. Kg1 Rc6 54. Bd4 Rd6 55. Bc5 Re6 56. Kf2 Rc6 57. b4 a5 58. Bd4 Rc4 {The position is equal.} 59. Bxf6 Kxf6 60. Rxe8 axb4 $11 {KR-KR} 61. Rb8 b3 62. a5 Ra4 63. Rxb3 {Rb5 is the strong threat.} Rxa5 64. Rb4 Ra2+ 65. Kg1 Kg6 66. Rg4 Kh5 67. f4 {Accuracy: White = 96%, Black = 96%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.15"]
[White "Nesterov, Arseniy"]
[Black "Yilmaz, Mustafa"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "2501"]
[BlackElo "2607"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,81,0,0,0,0,0,0,0,0,0,9,-17,0,0,20,20,27,26,20,20,21,28,28,28,28,28,22,28,37,7,27,4,4,4,4,4,4,4,14,4,4,4,4,2,2,2,2,0,0,0,2,2,4,4,8,4,19,4,4,4,18,2,2,0,2,1,19,12,19,8]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. e4 d5 6. e5 Ne4 7. Bd3 c5 $1 {[%cal Rc5d4]} 8. Nf3 $1 {The main line 8.Nf3 scores better than 8.Nge2. E32: Nimzo-Indian: Classical (4 Qc2): 4...0-0.} cxd4 9. Nxd4 Nd7 10. Bf4 Qh4 11. g3 Qh5 12. O-O g5 13. cxd5 Nxc3 (13... gxf4 {looks sharper.} 14. Nxe4 exd5 15. Nf6+ Nxf6 16. exf6 Bd6) 14. dxe6 gxf4 15. exd7 fxg3 16. hxg3 Bxd7 17. bxc3 Rac8 18. Bf5 Bxc3 19. Bxd7 Bxa1 20. Bxc8 Bxd4 {[#]} 21. Bf5 $146 {next Kg2 is good for White.} ({Predecessor:} 21. Bxb7 Qxe5 {½-½ (21) Stocek,J (2557)-Vitiugov,N (2724) Czech Republic 2016}) 21... Qf3 {[#] White must now prevent ...Qxg3+.} 22. Bxh7+ (22. Kh2 {is interesting.} b6 23. Be4 Qh5+ 24. Kg2 Qxe5 25. Rh1) 22... Kg7 $132 {[%mdl 2048] Strongly threatening ...Qxg3+. Black has counterplay. The position is equal.} 23. Qd3 Qxd3 24. Bxd3 Bxe5 $11 {[%mdl 4096] Endgame KRB-KRB} 25. Be4 b6 26. Rd1 Rc8 27. Rd7 Rc7 28. Rxc7 Bxc7 {KB-KB} 29. Kg2 Kf6 30. Bd5 Ke7 31. Kf3 Bd6 32. Ke4 Bc5 33. f4 f6 34. g4 Ba3 35. g5 fxg5 36. fxg5 Kf8 37. g6 Kg7 38. Bf7 a5 39. Be8 Bc5 40. a4 Bb4 41. Kd3 {Not much happened in this game. Accuracy: White = 96%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.16"]
[White "Karthikeyan, Murali"]
[Black "Pranesh M"]
[Result "1/2-1/2"]
[ECO "C65"]
[WhiteElo "2602"]
[BlackElo "2425"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,83,20,17,11,26,26,20,36,43,32,39,41,46,44,45,47,50,25,31,10,13,0,0,0,0,0,8,-2,0,-4,6,0,3,0,43,22,18,19,55,52,70,52,67,50,55,0,120,64,56,56,56,67,136,63,115,93,93,0,0,0,94,38,50,55,44,40,64,9,147,73,81,87,85,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Nbd2 O-O 6. Bxc6 {C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5.} bxc6 7. Nxe5 d5 8. O-O Qe8 9. Nef3 dxe4 10. Re1 {[%cal Rd2e4]} Bf5 11. Nxe4 Nxe4 12. dxe4 Bxe4 13. Be3 Bd6 14. Ng5 {next Bf4! is good for White.} Bg6 15. Bxa7 Qc8 (15... Qd8 $5 16. Be3 $8 Qf6 $11) 16. Be3 Qf5 17. c3 Rfb8 18. Qe2 c5 19. f3 Qe5 20. f4 $36 {[%mdl 2048] White has some pressure.} Qd5 21. c4 Qc6 22. b3 Re8 23. Qf2 Bf5 24. Nf3 f6 25. h3 Re7 26. Rad1 Rae8 27. b4 ({White should play} 27. Nh4 $14 Bd7 28. Bd2) 27... Re4 (27... cxb4 $11 {keeps the balance.} 28. c5 Rxe3 $1 {[%mdl 512]} 29. Rxe3 Rxe3) 28. Nd2 ({Of course not} 28. bxc5 $6 Bf8 $11) (28. Bxc5 $16 Bxc5 29. Qxc5 Qxc5+ 30. bxc5) 28... R4e6 $14 29. Nb3 {[%cal Rb4c5]} Re4 30. Bxc5 Rxf4 (30... Bxf4 $14 31. Nd4 Rxe1+ 32. Rxe1 Rxe1+ 33. Qxe1 Qe4 34. Qxe4 Bxe4) 31. Qd2 (31. Nd4 $16 Rxf2 32. Nxc6 Rxe1+ 33. Rxe1 Bxc5 34. bxc5) 31... Rxe1+ (31... Be5 $1 $14) 32. Rxe1 {And now Bxd6 would win.} Rxc4 {Hoping for ...Rc2.} 33. Qf2 (33. Na5 $16 Bxc5+ 34. Kh1) 33... Rf4 (33... Qd5 $11) 34. Qd2 $16 Rc4 {Strongly threatening ...Rc2.} 35. Bxd6 (35. Na5 $1 $16 {[%cal Ra5c6]} Bxc5+ 36. Kh1) 35... Rc2 $14 ({Don't go for} 35... cxd6 $2 36. Na5 $18) 36. Rc1 $1 {[%cal Rc1c2]} Rxc1+ 37. Nxc1 {aiming for Bg3.} cxd6 {[#]} 38. Ne2 (38. a4 $1 $14 {[%mdl 512]}) 38... h6 {[#]} (38... Be4 $11) 39. Nd4 ({White should try} 39. a4 $1 {[%mdl 512]}) 39... Qd5 $16 40. a4 Be4 {[#]} 41. a5 (41. g3 $1 $16) 41... Bxg2 $1 $11 42. b5 {Accuracy: White = 73%, Black = 72%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.17"]
[White "Suleymanli, Aydin"]
[Black "Praggnanandhaa R"]
[Result "1/2-1/2"]
[ECO "A10"]
[WhiteElo "2474"]
[BlackElo "2602"]
[Annotator "TA"]
[PlyCount "125"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,125,61,46,45,50,28,39,14,22,36,33,24,43,37,34,19,23,10,34,31,31,20,24,39,39,32,34,0,58,-14,-9,-14,-14,-22,9,-23,0,-30,-27,-38,-29,-36,-36,-35,-35,-27,0,-75,-67,-100,-75,-89,-66,-72,0,0,7,-5,-11,-20,0,0,0,-227,-227,-227,-227,-212,-205,-211,-174,-172,-168,-176,-126,-152,-127,-231,-207,-196,-156,-412,-397,-454,-445,-449,-389,-368,-398,-400,-381,-425,-387,-385,-454,-461,-460,-449,-473,-450,-481,-477,-441,-433,-451,-464,-417,-2504,0,0,0,0,0,0,0,0,0,0]} 1. c4 b6 2. Nc3 Bb7 3. Nf3 Nf6 4. d4 g6 5. Qc2 Bg7 6. Bg5 {A50: Queen's Fianchetto Defence (1 d4 Nf6 2 c4 b6).} d6 7. h3 O-O {[#]} 8. e3 $146 {White is slightly better.} ({Predecessor:} 8. Rd1 Nbd7 9. e4 Qe8 10. Be2 Rc8 11. O-O e6 12. Rfe1 h6 13. Bh4 Nh5 14. d5 {1-0 (36) Breitenfeldt,U (1651)-Brandt,J (1818) Binz 2016}) 8... a6 9. Be2 c5 10. O-O Nbd7 11. d5 b5 12. e4 b4 13. Nd1 e6 14. Ne3 Qc7 15. Rad1 Rfe8 16. Nd2 a5 17. Rde1 a4 18. Qb1 b3 (18... h6 $11 19. Bf4 Qb6) 19. a3 (19. axb3 $14 axb3 20. Nxb3) 19... Ba6 $11 20. Bf4 Re7 21. Bg5 Ree8 22. h4 exd5 23. exd5 h5 24. Bf4 Re7 25. Bg5 Rae8 26. Qc1 Ne5 27. Nb1 Ne4 28. Bf4 (28. Bxe7 $11 {remains equal.} Qxe7 29. g3) 28... Qa5 29. f3 Nf6 30. Bg5 Ned7 31. Bd3 {[#]} Nh7 (31... Nxd5 $1 $17 {[%mdl 512]} 32. Bxe7 (32. cxd5 Bxd3) 32... Nxe7) 32. Bxe7 Rxe7 33. Nc3 Bd4 34. Kh1 Qd8 35. g3 (35. Nxa4 $2 Rxe3 36. Rxe3 Qxh4+ 37. Kg1 Ne5 $19) 35... Ne5 36. Bb1 $2 (36. Be2 $11) 36... Nxc4 $19 37. Nxc4 Bxc4 38. Rxe7 Qxe7 39. Re1 Qd7 $40 {[%cal Rd7h3][%mdl 128] Black attacks with force.} 40. Kg2 Nf6 41. Ne2 Bxe2 $1 (41... Bxd5 42. Nxd4 cxd4 43. Qf4 $16) 42. Rxe2 Nxd5 43. Qg5 (43. Bd3 $17 {is a better defense.}) 43... Nf6 $1 44. Bd3 Kg7 45. Rd2 $2 (45. Qf4 $17) 45... Qc6 46. Re2 {intending Bxg6!} c4 47. Bb1 Qc7 48. Qd2 Bc5 49. Qg5 Ba7 50. Re6 Qd8 51. Bxg6 fxg6 (51... fxe6 52. Bxh5+ Kf8 53. Qh6+ Kg8 54. Qg5+ Kh7 55. Qg6+ Kh8 56. Qh6+ Nh7 57. Bg6 $11) 52. Qf4 d5 53. Qe5 {Threatens to win with Re7+.} Kf7 (53... Bc5 54. Rc6 $19) 54. Rc6 {And now Rc7+ would win.} Bb8 55. Qe6+ Kg7 56. g4 hxg4 57. fxg4 {aiming for g5.} d4 $1 58. Kh3 {[#]} (58. Qxc4 $142 Qd7 59. Qe6 Qxe6 60. Rxe6 Nxg4 61. Kf3 Ne5+ 62. Ke2 d3+ 63. Kd2) 58... g5 $2 ({Better is} 58... c3 $1 $19 59. bxc3 dxc3) 59. h5 $1 $11 {Hoping for Qf5.The position is equal.} d3 {Strongly threatening ...d2.} 60. Qf5 $1 {[%cal Rf5g5]} d2 {[#]} 61. h6+ $1 {[%mdl 512]} Kf7 $1 ({Stronger than} 61... Kh8 {[#]} 62. Rc8 $1 {[%mdl 512]} Ng8 63. Rxd8 Bf4 64. Qf6+ Kh7 65. Qg7#) (61... Kxh6 62. Rxf6+) 62. Qe6+ {[%mdl 64] Double Attack} Kg6 {( -> ...Qd3+)} (62... Kf8 $5 63. Rc8 $8 d1=Q 64. Qxf6+ {[%mdl 64] Double Attack, Pin} Ke8 65. Qe6+ (65. Rxd8+ Qxd8 66. Qe6+ Kf8 $11) (65. Qh8+ Kf7 $11) 65... Kf8 66. Rxd8+ Qxd8 67. Qf5+ Kg8 68. Qg6+ Kf8 69. Qg7+ Ke8 70. Qg8+ Kd7 $11) 63. Qf5+ {Accuracy: White = 70%, Black = 89%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.18"]
[White "Sargissian, Gabriel"]
[Black "Bharath Subramaniyam H"]
[Result "0-1"]
[ECO "D43"]
[WhiteElo "2689"]
[BlackElo "2402"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,74,7,2,0,0,-8,0,-12,-29,-35,-28,-34,-18,-27,-35,-24,-31,-28,-39,-32,-98,-92,-128,-129,-141,-144,-193,-185,-184,-189,-193,-186,-192,-227,-192,-189,-230,-213,-249,0,-208,-200,-208,-183,-250,-236,-242,-237,-244,-243,-237,-237,-225,-170,-243,-229,-242,-259,-214,-227,-236,-242,-1219,-1147]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. g3 dxc4 6. Bg2 b5 7. Ne5 a6 {[%cal Ba7a6,Ba6a5][%mdl 32] E04: Open Catalan: 5 Nf3.} 8. O-O {8.a4 is vanishing.} Bb7 9. b3 b4 {The position is equal.} 10. Ne4 {outshines the older 10.Na4.} Nxe4 11. Bxe4 c3 12. a3 a5 $1 13. axb4 Bxb4 {[#]} 14. Bf4 $146 ({Predecessor:} 14. Ra4 O-O 15. Ba3 Qe7 16. Qc1 Rd8 17. e3 c5 18. Bxb7 Qxb7 19. dxc5 Na6 20. Nc4 Nxc5 21. Nxa5 Rxa5 22. Rxb4 {0-1 (39) Gupta,A (2606)-Firouzja,A (2682) Xingtai 2019}) 14... O-O 15. Qd3 h6 16. g4 ({Better is} 16. Nc4 $1 $15) 16... Nd7 $17 {[%cal Bb8d7,Bd7f6,Bf6d5,Bd5f4][%mdl 32]} 17. Qg3 Nf6 18. Bf3 {With the idea g5.} Nd5 ({Stronger than} 18... Qxd4 19. Rad1 $16) 19. Nd3 Nxf4 {[%mdl 64] Discovered Attack} 20. Qxf4 {[#]} Bd6 $1 {[%cal Rd6f4]} 21. Qe3 {[#]} Qh4 $1 {[%csl Gd6][%cal Rh4h2]} 22. Rfc1 Qxh2+ 23. Kf1 Bb4 24. Nc5 Ra7 25. Nd3 Raa8 26. Nc5 $1 {[%cal Rc5b7]} Bc8 {...e5! is the strong threat.} 27. Nd3 Bd7 28. Ne5 (28. Qe5 $142 Qh3+ 29. Kg1) 28... Rfd8 $19 29. Rxc3 Bxc3 30. Qxc3 Be8 31. e3 f6 32. Nxc6 Rac8 {And now ...Bxc6 would win.} 33. Rxa5 (33. Qc4 $142 Kh8 34. Qxe6) 33... Bxc6 $1 ({Much less strong is} 33... Qh3+ 34. Bg2 $17) 34. Bxc6 Qh3+ 35. Ke1 Qxg4 36. b4 {[#]} e5 $1 37. d5 $2 {[#]} (37. Qb3+ Kh8 38. d5) (37. dxe5 Qd1#) 37... Rxc6 $1 {[%mdl 512] Accuracy: White = 57%, Black = 92%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.19"]
[White "Maghsoodloo, Parham"]
[Black "Aryan Chopra"]
[Result "1/2-1/2"]
[ECO "D85"]
[WhiteElo "2674"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,65,20,6,18,12,14,14,21,21,13,6,16,2,4,8,20,15,67,29,43,40,45,0,0,0,0,0,0,0,-7,0,0,0,0,0,8,8,8,8,8,8,8,8,11,0,0,0,0,0,139,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nxc3 7. Bxc3 O-O 8. Qd2 c5 {[%cal Rc5d4] D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 Nf3.} 9. d5 e6 10. Bc4 Bxc3 11. bxc3 exd5 12. Bxd5 Nd7 13. Nf3 Nf6 14. O-O Re8 15. Rfe1 {[#]} Qc7 $146 (15... Bg4 $11) ({Predecessor:} 15... Bg4 16. Ng5 Be6 17. c4 Bxd5 18. exd5 b5 19. cxb5 Qxd5 20. Qxd5 Nxd5 21. Ne4 a6 22. bxa6 Rxa6 23. Nxc5 Rxe1+ 24. Rxe1 Rxa2 {½-½ (30) Kasimdzhanov,R (2705)-Radjabov,T (2731) Tbilisi 2015}) 16. Qh6 {And now Ng5 would win.} Nxd5 17. exd5 {[%cal Re1e8] [#]} Bf5 $1 18. d6 Qxd6 19. Ng5 Qf6 $1 {[%cal Rf6g7]} 20. Qxh7+ Kf8 21. f4 Qg7 22. Qh4 {[#] Black must now prevent Nh7+.} Qxc3 23. h3 (23. Nh7+ $2 Kg7 $17) 23... c4 24. Kh2 $40 {[%mdl 128] White mounts an attack.} Bd3 ({Don't play} 24... Rxe1 25. Rxe1 Qg7 26. Nh7+ Kg8 27. Nf6+ Kf8 28. Nd5 $16) 25. f5 ({Reject} 25. Nh7+ Kg7 $17) 25... Bxf5 26. Rac1 Qb2 27. Qxc4 {[%csl Gg5][%cal Rc4f7]} Qg7 $1 28. Qb4+ Kg8 29. Qxb7 {Threatening Rc7!} Qf6 30. h4 Qd6+ 31. Kh1 Rxe1+ 32. Rxe1 Rf8 $1 33. Re8 {Accuracy: White = 90%, Black = 96%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.20"]
[White "Rakhmanov, Aleksandr"]
[Black "Kunin, Vitaly"]
[Result "1/2-1/2"]
[ECO "A21"]
[WhiteElo "2645"]
[BlackElo "2550"]
[Annotator "TA"]
[PlyCount "134"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,134,0,14,0,10,-1,14,0,54,-18,-9,-12,-5,-14,-14,-20,-20,-36,-45,-61,-57,-53,-67,-64,-50,-54,-25,-42,-35,-62,-52,-47,-51,-47,-27,-26,-45,-16,-23,-30,-21,-49,-29,-53,-45,-100,-102,-189,-202,-233,-217,-225,-191,-223,-231,-230,-231,-229,-218,-229,-231,-244,-247,-257,-251,-306,-341,-347,-334,-322,-306,-321,-260,-258,-248,-252,-234,-212,-158,-177,-150,-160,-80,-83,-98,-89,-83,-70,-11,-17,-17,-283,-262,-268,-225,-454,-449,-447,-440,-409,-289,-107,-8,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,8,8,8,8]} 1. c4 e5 2. Nc3 Bb4 3. Nd5 Bd6 4. g3 c6 5. Nc3 Nf6 6. Bg2 {A21: English Opening: 1...e5 2 Nc3.} O-O 7. e4 a6 8. Nge2 b5 {[#]} ({Better is} 8... Bc7 $11) 9. d3 $146 ({White should try} 9. d4 $14) ({Predecessor:} 9. b3 Bc5 10. O-O d6 11. h3 Re8 12. d3 Nbd7 13. Rb1 b4 14. Na4 Ba7 15. Kh1 {0-1 (28) Seeman,T (2410)-Kovalenko,I (2640) Tallinn 2020}) 9... Bc5 10. O-O d6 11. h3 Nbd7 12. Rb1 Ba7 13. Kh2 Nb6 14. b3 b4 15. Na4 Nxa4 16. bxa4 Rb8 17. f4 Nd7 18. Bd2 a5 19. f5 d5 20. exd5 cxd5 21. Bxd5 Nf6 22. Bg5 $1 Ng4+ {[%mdl 64] Discovered Attack} 23. hxg4 Qxg5 24. Ng1 $1 Bb7 25. Nh3 Qd8 26. f6 Bxd5 27. cxd5 (27. fxg7 $15 Kxg7 28. cxd5) 27... Qxd5 $17 28. Qd2 (28. Qe2 $17) 28... Rb6 $1 $19 29. Ng5 Rd8 $1 (29... gxf6 30. Ne4 $11) (29... Rxf6 30. Rxf6 gxf6 31. Ne4 $11) 30. Rbd1 {intending Ne4.} Rbd6 (30... gxf6 31. Ne4 $15) 31. Qe2 Rxf6 32. Rxf6 gxf6 33. Ne4 Kg7 34. Kh3 Bc5 35. Rc1 Be7 36. Nf2 Rd6 37. Rc4 {[#]} f5 $1 {[%cal Rd6h6][%mdl 512]} 38. Kh2 (38. gxf5 Rh6+) 38... Rh6+ 39. Nh3 {[#]} f4 $1 {[%mdl 512]} 40. Qe4 (40. gxf4 Rxh3+) 40... Qxe4 41. Rxe4 {[%mdl 4096] Endgame KRB-KRN} Rc6 42. gxf4 Rc2+ 43. Kg3 exf4+ 44. Kf3 Bd6 45. Rd4 Bc7 (45... Bb8 $142 46. Rd5 Bc7) 46. Rc4 $17 Rc3 47. Nxf4 Bxf4 48. Kxf4 {KR-KR} Kf6 ({Black should play} 48... Kg6 $15) 49. g5+ Kg6 {aiming for ...f6.} 50. Kg4 $2 {[%mdl 8192] [#]} (50. Re4 $1 $11) 50... f6 $1 $19 ({Not} 50... Rxd3 51. Rc6+ Kg7 52. Rc5 $11) 51. Rd4 Rc2 ({Less strong is} 51... fxg5 52. Rd6+ Kf7 53. Rd5 $15) 52. gxf6 $2 (52. Rd6 Rg2+ 53. Kf4 Rxg5 54. Rd8) 52... Rxa2 53. Rf4 {[#]} h5+ $1 54. Kh4 {Intending f7 and mate.} Kf7 {Hoping for ...b3.} 55. Kg5 Rg2+ (55... b3 $17 {And now ...b2 would win.} 56. Rd4 Rg2+ 57. Kf5 Rf2+ 58. Kg5 Ke6 59. Re4+ Kd5) 56. Kxh5 $11 {The position is equal.} Rg8 (56... Ra2 $5 57. Kg5 $8 Rg2+ 58. Kf5 Rh2 $11) 57. Rf5 Rb8 {...b3 is the strong threat.} (57... b3 $5 58. Rb5 $8 Kxf6 $11) 58. Kg5 b3 {Threatens to win with ...b2.} 59. Rf1 $1 Rd8 (59... b2 $5 60. Rb1 $8 Rb3 $11) 60. Rb1 Rxd3 61. Kf5 Rh3 62. Ke5 Rh5+ 63. Kd4 Rh4+ 64. Kc3 Rxa4 65. Rxb3 Rb4 66. Rxb4 axb4+ 67. Kxb4 Kxf6 {Whites escaped into a draw. Accuracy: White = 72%, Black = 81%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.21"]
[White "Chanda, Sandipan"]
[Black "Abdusattorov, Nodirbek"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2552"]
[BlackElo "2644"]
[Annotator "TA"]
[PlyCount "141"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,141,0,0,0,12,14,7,0,3,0,0,-5,6,-23,-17,-29,-14,-33,0,0,0,-22,0,-16,0,0,0,-66,-67,-72,-57,-57,-64,-72,-59,-56,-56,-56,-64,-58,-62,-56,-56,-56,-26,-68,-39,-81,-9,-21,0,0,0,-7,0,0,0,0,0,0,0,0,0,0,0,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-22,-8,-8,-8,-8,-8,-8,-8,-8,-8,-30,-8,-8,-8,-8,-8,-24,-8,-31,0,0,0,-8,-8,-8,-8,-8,0,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Nc6 5. Nbd2 e6 6. c3 Bd6 7. Bg3 O-O 8. Bb5 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Bxg3 9. hxg3 Qb6 10. a4 Bd7 11. Qb1 h6 12. O-O {[#]} Rfc8 $146 ({Predecessor:} 12... Rac8 13. Bd3 a5 14. Qa2 Qa7 15. Rfd1 b6 16. Rac1 Rfd8 17. b3 Be8 18. Re1 Ng4 19. Nf1 Qb8 20. Qb1 Ne7 21. N1h2 Nxh2 {½-½ (21) Owens,J (2189)-Cvak,R (2256) ICCF email 2016}) 13. Bxc6 Bxc6 14. Ne5 a5 15. f4 Be8 16. g4 Nh7 17. Nd3 cxd4 18. exd4 f6 19. Rf2 Bg6 20. f5 ({White should play} 20. Nf3 $1 $11) 20... Bf7 $15 21. Nf3 exf5 22. gxf5 Re8 23. Qf1 Qd6 24. Re1 Rxe1 25. Qxe1 b6 26. Re2 Ng5 27. Nxg5 hxg5 28. g4 Qc6 29. Re7 Kf8 30. Kg2 Rd8 (30... Re8 $17 31. Rxe8+ Bxe8) 31. Ra7 $11 Re8 32. Qg3 Rc8 33. Qe3 {[#] White threatens Qe7+ and mate.} Re8 34. Qg3 Re7 35. Qb8+ Be8 36. Rxe7 Kxe7 37. Qa7+ Kf8 38. Qb8 g6 39. fxg6 Kg7 40. Nf2 $1 Qe6 41. Qa7+ Kxg6 42. b4 Bxa4 {[#] aiming for ...Bb5.} 43. bxa5 bxa5 44. Qxa5 Qd7 45. Qc5 Kf7 46. Kg3 Bb3 47. Qb6 Bc2 48. Qb2 Ba4 49. Qb1 Kg7 50. Qe1 Bb5 51. Qe3 Kf7 52. Kg2 Ba6 53. Qh3 Kg7 54. Nd1 Qb5 (54... Qe6 $5 {[%cal Re6e2]} 55. Nf2 Qe1 $15) 55. Qf3 {The position is equal.} Qb1 56. Ne3 Bd3 {...Be4 is the strong threat.} 57. Nf5+ $1 Kg6 58. Ng3 $132 {[%mdl 2048] White puts up resistance} Qa2+ 59. Kh3 Bb1 60. Qf1 {White wants to play Qb5.} Qb3 61. Qa6 Qxc3 62. Qe6 Qc7 63. Qxd5 Bd3 64. Qe6 Qc4 65. d5 {And now Nh5 would win.} Bf1+ 66. Nxf1 Qxf1+ 67. Kg3 Qd3+ 68. Kf2 Qd2+ 69. Kf3 Qd3+ 70. Kf2 Qd2+ 71. Kf3 {Accuracy: White = 95%, Black = 90%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.22"]
[White "Riazantsev, Alexander"]
[Black "Asadli, Vugar"]
[Result "1-0"]
[ECO "E15"]
[WhiteElo "2639"]
[BlackElo "2538"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,97,18,19,27,22,42,54,53,50,49,56,53,56,67,45,52,47,43,50,61,61,57,34,52,4,7,6,9,14,73,81,114,116,114,111,111,103,107,88,85,77,80,48,83,62,55,0,73,69,89,64,72,49,50,53,52,49,56,64,97,79,70,64,116,118,153,0,0,0,0,0,0,0,0,0,848,848,1003,98,922,901,5189,5110,5110,1919]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 c6 5. Nc3 d5 6. Bg2 Be7 7. O-O O-O 8. b3 Ba6 {E06: Closed Catalan: Early deviations.} 9. Nd2 b5 {[%cal Rd5c4]} 10. c5 b4 {White is slightly better.} 11. Na4 Nbd7 {[#]} 12. a3 $146 ({Predecessor:} 12. Nf3 Ne4 13. Bb2 Bb5 14. Re1 f5 15. e3 Bf6 16. Rc1 Qc7 17. Ba1 g5 18. Nd2 {0-1 (68) Andersen,L (2141)-Glud,J (2506) Middelfart 2012}) 12... bxa3 13. f4 Rb8 14. Re1 Ne8 15. Bxa3 Nc7 16. Nf3 Rb7 17. Qc2 f5 18. Bc1 Qb8 19. Bd2 Rxb3 {[#]} 20. Nb6 $1 {[%mdl 512]} axb6 21. Qxb3 Bc4 (21... bxc5 $11 22. Qb1 Qc8) 22. Qb2 Nb5 23. cxb6 Qxb6 24. Ba5 Qb8 25. e3 c5 26. Nd2 Bd3 27. Bf1 Bxf1 28. Nxf1 {Threatens to win with Reb1.} Qb7 29. Reb1 Rb8 30. Bc3 (30. dxc5 $14 Bxc5 31. Bb4) 30... Qc7 {[#]} (30... Qc8 $1 $11 {remains equal.}) 31. dxc5 $1 $16 Bxc5 32. Be5 Nd6 33. Qc3 Rxb1 34. Rxb1 Nxe5 35. Qxe5 Qd7 36. Nd2 Ba7 37. Kg2 h6 38. Ra1 Nf7 (38... Kh7 $14) 39. Qc3 d4 40. exd4 $2 (40. Qd3 $16) 40... Bxd4 $11 41. Ra8+ Kh7 $1 42. Qc8 Qb5 43. Qa6 Qd5+ 44. Nf3 $1 {Qa2 is the strong threat.} g5 $2 {[%mdl 8192]} (44... Qe4 $11 45. Re8 Nd6) 45. Qc8 $18 {[%csl Ga8][%cal Rc8g8]} Kg7 {[#]} 46. Qg8+ $1 Kf6 {[#] ( -> ...g4)} 47. Rf8 $1 {[%csl Gg8,LRf7,LRg5][%cal Rf8f7] White is clearly winning.} Qa2+ {[#]} 48. Kh3 $1 {[%csl Gg8][%cal Rf8f7]} g4+ {[#]} 49. Kh4 $1 {Accuracy: White = 89%, Black = 73%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.23"]
[White "Sengupta, Deep"]
[Black "Narayanan.S.L"]
[Result "0-1"]
[ECO "A28"]
[WhiteElo "2534"]
[BlackElo "2637"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,94,4,11,22,22,18,14,8,6,14,5,19,18,28,20,30,22,31,22,35,34,25,27,9,0,0,0,0,-6,0,-46,-12,-35,-26,-33,-9,-22,-23,-46,-32,-29,-26,-29,-26,-60,-39,-105,-105,-105,-97,-114,-99,-203,-217,-256,-192,-430,-416,-719,-660,-824,-935,-803,-520,-1622,-1679,-1569,-1340,-1750,-1695,-29975,-29976,-29976,-29977,-29977,-29978,-29978,-29979,-29979,-29980,-29980,-29981,-29981,-29982]} 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. Be2 {7.d4 is the modern continuation.} d5 {A28: English Opening: Four Knights Variation.} 8. d4 exd4 9. Nxd4 Nxd4 {The position is equal.} 10. Qxd4 c5 11. Qf4 dxc4 12. Bxc4 O-O 13. b3 Rd8 14. Bb2 {[#]} Nd5 $5 $146 {[%mdl 8] An interesting novelty.} ({Predecessor:} 14... Ne8 15. O-O Be6 16. Qe5 Rd2 17. Rfd1 Rad8 18. Rxd2 Rxd2 19. Bc3 Rd7 20. Bb5 Rd8 {½-½ (36) Schulze,G (1999)-Von Wedel,B (2241) GER email 2010}) 15. Qg3 {[%csl Gb2][%cal Rg3g7]} f6 16. O-O {e4! is the strong threat.} Be6 17. Rac1 Rac8 18. Ba3 a5 19. Qh4 b6 20. Rfd1 Bf7 21. Ba6 Rb8 22. Bd3 h6 {White must now prevent ...Nxe3!} 23. Qg3 Nb4 24. Bxb4 axb4 25. Qf4 Qe5 26. Qxe5 fxe5 27. f3 Kf8 28. Be4 Ke7 29. h4 {Black keeps a firm grip on the game.} (29. Rxd8 $15 Rxd8 30. Rc2) 29... Rxd1+ $17 30. Rxd1 {[%mdl 4096] Endgame [#] KRB-KRB} b5 $1 31. g4 c4 32. g5 (32. Kf1 $17) 32... Rb6 $19 ({Not} 32... cxb3 33. axb3 hxg5 34. hxg5 $15) 33. Bf5 Be6 ({Inferior is} 33... cxb3 34. axb3 g6 35. Bc2 $11) 34. Bxe6 $2 (34. Be4) 34... Kxe6 35. gxh6 (35. f4 $142 Ra6 36. Kg2) 35... gxh6 {KR-KR} 36. Rc1 c3 37. Kf2 Rd6 38. Rc2 {[#]} (38. Kg3 $142 Rd2 39. Ra1) 38... e4 $1 {[%mdl 512]} 39. Ke2 (39. fxe4 Ke5) 39... Kf5 40. h5 Rd3 41. fxe4+ Kxe4 {Black mates.} 42. Ke1 Rxe3+ 43. Kd1 Kd3 44. Rg2 Rh3 45. Rg1 c2+ 46. Kc1 Kc3 47. Rf1 Rd3 {Accuracy: White = 52%, Black = 89%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.24"]
[White "Aravindh, Chithambaram VR."]
[Black "Moroni, Luca Jr"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2630"]
[BlackElo "2536"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,57,26,22,20,8,9,9,37,39,27,28,42,41,38,29,67,21,29,36,45,52,47,31,46,19,113,120,128,135,132,145,185,188,522,521,580,580,580,580,558,551,1148,1148,1062,1148]} 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Nbd7 5. Bf4 dxc4 6. e3 Nd5 7. Bxc4 Nxf4 8. exf4 Nb6 {The main line 8...Nb6 scores better than 8...Bd6. D37: Queen's Gambit Declined: 5 Bf4.} 9. Bd3 g6 10. h4 {[#]} Nd5 $146 {The position is equal.} ({Predecessor:} 10... Bg7 11. h5 Qe7 12. h6 Bf8 13. Qe2 f6 14. Nd2 Bd7 15. Nb3 O-O-O 16. Bb5 c6 {0-1 (44) Dedina,M (2297)-Valak,A (2250) ICCF email 2004}) 11. g3 Bg7 12. h5 Nxc3 13. bxc3 c5 {[%cal Rc5d4]} 14. Ne5 Qa5 15. Kf1 ({Much weaker is} 15. hxg6 Qxc3+ 16. Ke2 hxg6 $11) 15... cxd4 $1 16. cxd4 Qd5 17. Kg1 {aiming for Qa4+.} Bd7 $1 18. Bc4 $36 {[%mdl 2048] White is more active.} Qd6 19. Qb3 Bc6 {[#]} (19... O-O $11 {remains equal.}) 20. Re1 $1 $16 {Strongly threatening Nxf7!} Bxe5 ({Not} 20... Bxh1 $2 21. Nxf7 Kxf7 22. Rxe6 $18) 21. dxe5 Qc5 {[#]} 22. hxg6 $1 {[%mdl 512]} Bxh1 (22... fxg6 23. Rh6) 23. gxf7+ Kf8 $2 (23... Kxf7 24. Bxe6+ (24. Kxh1 Qc6+ 25. Kg1 Rac8 $16) 24... Kg7) 24. Kxh1 $18 {White is clearly winning.} Rd8 25. Bxe6 Qxf2 26. Rd1 Kg7 27. Bd5 {And now e6 would win.} Qe2 28. e6 Kh6 29. Qd3 {Accuracy: White = 87%, Black = 54%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.25"]
[White "Raja Harshit"]
[Black "Martirosyan, Haik M."]
[Result "0-1"]
[ECO "C03"]
[WhiteElo "2472"]
[BlackElo "2630"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,76,7,12,9,19,4,36,42,47,42,45,43,21,39,88,54,112,113,135,112,135,-3,-10,-39,-9,-51,2,-83,-113,-102,-112,-113,-77,-164,-156,-156,-167,-144,-94,-123,-50,-63,-39,-263,-124,-176,-178,-174,-83,-163,-161,-209,-141,-728,-695,-964,-949,-1014,-925,-29983,-29984,-29990,-29991]} 1. e4 e6 2. d4 d5 3. Nd2 Be7 4. Ngf3 Nf6 5. e5 Nfd7 6. Bd3 c5 7. c3 Nc6 8. O-O g5 9. Nb1 {C06: French Tarrasch: 3...Nf6 4 e5 Nfd7 5 Bd3 main lines.} g4 10. Ne1 $1 cxd4 11. cxd4 {[#] White is slightly better.} Nxd4 $146 ({Predecessor:} 11... h5 12. Be3 Nf8 13. Nc3 Bd7 14. Rc1 Qa5 15. a3 a6 16. f3 g3 17. hxg3 O-O-O {1-0 (40) Loos,R (2262)-Willim,M (2135) Bayern 2009}) 12. Qxg4 Nc6 13. Qg7 Rf8 14. Bf4 Qb6 15. Nf3 f6 (15... Qb4 $14 16. g3 Nc5 17. Qxh7 Bd7) 16. Bxh7 $16 ({Much worse is} 16. Qxh7 $6 fxe5 17. Bh6 e4 $11) 16... fxe5 17. Bh6 Kd8 18. Qg6 (18. Ng5 $16 Nf6 19. Qg6) 18... Rf6 $1 $11 {[%cal Rf6g6]} 19. Qg8+ Kc7 20. Be3 $1 {[%cal Re3b6]} Bc5 (20... Qxb2 $15 21. Nbd2 b6) 21. Nc3 (21. Bxc5 $11 Qxc5 22. Nc3) 21... Bxe3 $17 22. fxe3 Qxe3+ 23. Kh1 a6 24. Qxe6 (24. Ng5 $17 {was worth a try.} Rxf1+ 25. Rxf1) 24... Qxc3 $1 $19 25. Qxd7+ Bxd7 ({Much less strong is} 25... Kxd7 26. bxc3 Kc7 27. Ng5 $15) 26. bxc3 Raf8 27. Kg1 b5 (27... e4 $17 28. Ng5 Ne5 29. Rxf6 Rxf6) 28. Rad1 e4 $36 {[%mdl 2048] Black is more active.} 29. Nd4 $2 (29. Ng5 $15) 29... b4 (29... Nxd4 $19 {and Black stays clearly on top.} 30. cxd4 b4) 30. Nxc6 (30. Rxf6 $17 Rxf6 31. Nxc6 Bxc6 32. cxb4) 30... Bxc6 ({Don't take} 30... Kxc6 31. cxb4 Bg4 32. Rxf6+ Rxf6 33. Rf1 $15) 31. cxb4 {[#]} Bb5 (31... e3 $1 $19 {[%cal Re3e2] has better winning chances. aiming for ...e2!} 32. Rxf6 Rxf6) 32. Rxf6 (32. Rfe1 $17) 32... Rxf6 $17 {[%mdl 4096] Endgame KRB-KRB} 33. g4 {[#]} e3 $1 {[%mdl 1024] White must now prevent ...Rf4. Black has strong compensation.} 34. g5 $2 {[%mdl 8192]} (34. Bf5 $17 Kd6 35. a4) 34... Rf4 $19 {And now ...e2 would win.} 35. Kg2 e2 36. Re1 d4 37. g6 d3 38. Rc1+ Bc6+ {Accuracy: White = 35%, Black = 52%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.26"]
[White "Stupak, Kirill"]
[Black "Shtembuliak, Evgeny"]
[Result "1/2-1/2"]
[ECO "D38"]
[WhiteElo "2518"]
[BlackElo "2628"]
[Annotator "TA"]
[PlyCount "36"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,36,26,6,18,6,6,6,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Nc3 Bb4 5. Bg5 h6 6. Bxf6 Qxf6 7. e3 O-O 8. Rc1 dxc4 9. Bxc4 c5 10. O-O cxd4 11. Nxd4 Bd7 {The position is equal. D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} 12. Qb3 Nc6 13. Nxc6 Bxc3 $1 14. Rxc3 Bxc6 15. Bb5 Bd5 16. Bc4 Bc6 17. Bb5 Bd5 18. Bc4 Bc6 {An uneventful encounter.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.27"]
[White "Kulaots, Kaido"]
[Black "Smirin, Ilia"]
[Result "0-1"]
[ECO "B41"]
[WhiteElo "2510"]
[BlackElo "2615"]
[Annotator "TA"]
[PlyCount "114"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,114,25,35,31,50,42,44,2,50,-20,0,0,0,0,0,0,0,0,0,0,0,0,0,-14,0,-10,0,-39,-41,-30,-23,-31,13,12,10,15,36,19,29,33,23,31,16,0,21,23,27,12,14,11,18,18,16,12,12,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-315,-374,-360,-360,-549,-539,-29973,-29974,-29980,-29980,-29977,-29978,-29982,-29982,-29982,-29983,-29986,-29987]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Qd3 {B41: Sicilian: Kan Variation: 5 c4.} O-O 8. e5 Ne8 $1 {[#]} 9. Bd2 $146 {White is slightly better.} ({Predecessor:} 9. Bf4 d6 10. Nc2 Bxc3+ 11. Qxc3 dxe5 12. Bxe5 Nc6 13. Bf4 e5 14. Be3 Nf6 15. Bd3 {0-1 (47) Karjakin,S (2754)-Smirin,I (2607) Moscow 2019}) 9... Qc7 10. Nf3 (10. Qg3 $14) 10... Nc6 $11 11. Qe4 f5 12. exf6 Nxf6 13. Qh4 d5 14. Be2 Be7 15. cxd5 exd5 16. O-O Be6 17. Bd3 Qd7 18. Rad1 Bg4 {Strongly threatening ...Bxf3.} 19. Bg5 {And now Bxf6 would win.} (19. Bc2 $5 {[%cal Rc3d5]} h6 20. h3 Bxf3 21. gxf3 $15) 19... h6 {White must now prevent ...Bxf3.} 20. Bxf6 $1 Bxf6 21. Qg3 {aiming for Nxd5!} Ne7 22. Be2 Be6 23. Ne5 $36 {[%mdl 2048] White has some pressure.} Qe8 {Hoping for ...Nf5.} 24. Bg4 Bxg4 25. Nxg4 Bxc3 $1 26. Qxc3 Rd8 27. Ne3 Qc6 28. Qb3 Kh8 29. Rd4 Qf6 30. Qc3 Nf5 31. Nxf5 Qxf5 32. Qd2 Rf6 33. Rc1 Rc6 34. h3 Rxc1+ 35. Qxc1 {[%mdl 4096] Endgame KQR-KQR} Rc8 36. Qe1 Rc2 37. Rb4 d4 38. Rxd4 ({Don't go for} 38. Rxb7 $2 d3 $19) 38... Rxb2 39. a4 Rb1 40. Rd1 Rxd1 41. Qxd1 {KQ-KQ} b5 42. g4 Qe4 43. axb5 axb5 44. Qb3 b4 45. Kf1 $1 Kh7 46. f3 Qd4 47. h4 Qd2 48. h5 Kh8 49. Qf7 $2 {[%mdl 8192] [#]} (49. Qc4 $11 {and White stays safe.}) 49... Qd3+ $1 $19 50. Kg2 {[#] Threatening Qf8+.} Kh7 $1 51. f4 (51. g5 {only move.} hxg5 52. h6 Qe2+ 53. Kg3 Qe1+ 54. Kg2 Qe2+ 55. Kg3 Qe5+ 56. Kg2 Qe2+) 51... b3 {[%cal Bb4b3,Bb3b2][%mdl 32]} 52. g5 hxg5 {Black mates.} 53. f5 Qe4+ 54. Kf2 b2 55. h6 Qc2+ 56. Ke3 Qc3+ 57. Ke2 Qe5+ {Accuracy: White = 82%, Black = 95%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.28"]
[White "Kardashevskiy, Evgeny"]
[Black "Salgado Lopez, Ivan"]
[Result "1/2-1/2"]
[ECO "A40"]
[WhiteElo "2437"]
[BlackElo "2597"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,53,20,21,12,33,0,0,12,14,-10,13,6,0,0,25,26,18,12,12,0,0,-19,0,0,-7,0,-4,-6,0,-15,-16,-18,-13,-18,-14,-17,-14,-28,-21,-15,0,-35,0,-18,0,-34]} 1. d4 e6 2. Nf3 c5 3. c4 cxd4 4. Nxd4 a6 5. g3 Qc7 6. Nc3 {[#] A43: Schmid Benoni.} Qxc4 $146 ({Predecessor:} 6... b6 7. Bg2 Bb7 8. e4 Bb4 9. O-O Nf6 10. Nd5 exd5 11. cxd5 O-O 12. Nf5 a5 {1-0 (21) Nagy,G (2439)-Czebe,A (2490) Zalakaros 2013}) 7. Bg2 (7. e4 $5 {[%cal Rf1c4]} Qc7 8. Bg2 $11) 7... Nc6 8. Nb3 d5 9. O-O Bb4 10. Bf4 {[%cal Rg2d5] With the idea Bxd5!} Bxc3 11. Rc1 {[%mdl 64] [#] Pin} Nf6 12. Rxc3 Qb4 13. Be3 Nd7 14. f4 O-O 15. Bf2 Re8 16. a3 Qe7 17. e4 dxe4 18. Bxe4 Nf6 19. Bf3 e5 20. Bc5 Qe6 21. f5 Qd7 22. Rd3 Qc7 23. Bd6 Qb6+ 24. Bc5 Qc7 {[#] Hoping for ...e4.} 25. Bd6 Qb6+ (25... Qd8 $5 {[%cal Re5e4]} 26. Bc5 Bd7 27. Bxc6 bxc6 $15) 26. Bc5 Qc7 {Threatens to win with ...e4.} 27. Bd6 {An uneventful encounter. Accuracy: White = 100%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.29"]
[White "Shimanov, Aleksandr"]
[Black "Gokerkan, Cem Kaan"]
[Result "1/2-1/2"]
[ECO "D56"]
[WhiteElo "2587"]
[BlackElo "2461"]
[Annotator "TA"]
[PlyCount "122"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,122,28,23,18,32,18,28,22,28,14,14,18,21,22,10,14,10,14,16,31,35,0,1,0,0,0,0,0,0,0,0,-7,0,-2,2,-89,-80,-79,-67,-115,-118,-165,-129,-154,-92,-125,-75,-78,-8,-7,0,-91,-57,-149,-142,-134,-136,-142,0,-47,0,-112,0,-169,-184,-137,-124,-170,-177,-172,-172,-175,-138,-159,-29,-35,0,-25,-13,-12,0,-20,0,-10,-9,-9,-16,-75,-50,-47,0,0,0,-64,-63,-52,-70,-58,-8,-8,-8,-8,0,0,0,-8,0]} 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 Nbd7 8. Rc1 a6 {8...c5 is the modern continuation.} 9. cxd5 exd5 10. Bd3 {D63: Queen's Gambit Declined: Classical: 7 Rc1.} Re8 11. Bg3 c6 12. O-O {White has an edge.} Bf8 13. h3 {[#]} Ne4 $146 ({Predecessor:} 13... b6 14. Ne5 Bb7 15. f4 c5 16. Bh4 Be7 17. Bf5 Nf8 18. Na4 c4 19. b3 N6h7 20. Bxh7+ Nxh7 {1-0 (91) Berkes,F (2630)-Speelman,J (2555) Mallorca 2004}) 14. Bxe4 dxe4 15. Nd2 f5 16. Qb3+ Kh7 17. Qf7 Nf6 18. Be5 {Black must now prevent Bxf6.} Ng8 19. Bc7 (19. Ne2 {keeps more tension.} Qe7 20. Qxe7 Nxe7 21. Nc4 Nd5 22. Nc3) 19... Be6 $132 {[%mdl 2048] Black is not keeping still} 20. Qxe6 Rxe6 21. Bxd8 Rxd8 22. Nc4 Nf6 23. a3 Nd5 24. Na5 Re7 25. b4 f4 26. Nb3 (26. Nxd5 $11 Rxd5 27. exf4) 26... fxe3 $17 27. Nxd5 exf2+ 28. Rxf2 cxd5 29. Rfc2 g6 30. Kf2 h5 (30... Rf7+ $142 31. Ke2 Bd6) 31. Ke2 Kh6 32. Rc8 Rxc8 (32... Red7 $17 {Threatening ...Bd6.} 33. Rxd8 Rxd8) 33. Rxc8 {[%mdl 4096] Endgame KRB-KRN} Bg7 34. a4 (34. Rd8 $11 {remains equal.}) 34... Bf6 35. a5 (35. Ke3 $15) 35... Rf7 36. Rc5 Rd7 37. Rc8 {[#]} Rf7 ({Black should try} 37... Kg5 $1 $17 38. Rf8 Rd6) 38. Rc5 $15 Rd7 (38... Bh4 $15 39. Rxd5 Rf2+ 40. Ke3 Rxg2) 39. Rc8 $1 $17 Bh4 (39... Kg5 $17 40. Rf8 Rd6) 40. Rf8 $2 (40. Nc5 $11 {and White stays safe.} Rf7 41. Ne6) 40... Kg7 $19 41. Rf1 {[#]} b6 $1 {[%mdl 512]} 42. axb6 Rb7 43. Nc5 Rxb6 44. Rb1 Be7 45. Kd2 Rf6 ({Black should play} 45... Kh6 $17 46. Ke2 Kg5) 46. Ke2 $1 $11 Bd6 47. Nd7 Rf5 48. Nc5 Rf6 49. Nd7 Rf5 50. Nc5 Kh6 51. Nxa6 Rg5 52. Kf1 {[#]} (52. Kf2 $11) 52... Bg3 $1 $17 {aiming for ...Rf5+.} 53. Ke2 Bd6 (53... Bh4 $5 {[%cal Rg5g2]} 54. Rg1 Rg3 $17) 54. Kf1 Bg3 (54... Rf5+ $11 55. Ke2 Rg5) 55. Ke2 $15 Bh4 $1 56. Rg1 {And now g4 would win.} Rg3 {...Ra3 is the strong threat.} 57. Nc7 $1 Rb3 {Strongly threatening ...Rb2+.} 58. Rd1 {The position is equal.} Rb2+ 59. Rd2 Rb1 {[%csl Gh4][%cal Rb1e1]} 60. Rd1 Rb2+ 61. Rd2 Rb1 {Whites escaped into a draw. Accuracy: White = 71%, Black = 71%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.30"]
[White "Lazavik, Denis"]
[Black "Sanal, Vahap"]
[Result "0-1"]
[ECO "A50"]
[WhiteElo "2428"]
[BlackElo "2569"]
[Annotator "TA"]
[PlyCount "150"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,150,17,0,10,0,0,0,16,0,0,0,16,0,0,0,19,0,0,0,14,4,11,2,16,10,22,14,4,8,16,23,13,4,12,0,0,-31,-32,-37,-28,-15,0,0,46,45,93,95,103,100,87,100,128,129,138,133,142,127,116,0,148,154,162,135,150,122,112,41,52,6,41,38,112,50,33,0,62,4,54,17,17,17,20,0,15,-2,-3,-6,-7,-17,0,-15,-21,-21,0,0,0,0,0,0,0,-10,-18,-58,-6,-4,0,-59,0,0,0,-18,-14,-64,-39,-120,-112,-429,-422,-424,-423,-479,-474,-1131,-432,-1706,-607,-12846,-659,-566,-487,-495,-450,-579,-531,-12813,-12814,-6714,-6714,-2359,-2166,-29992,-12844]} 1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. Qc2 dxc4 5. Qxc4 Bg4 6. Nbd2 Nbd7 {D23: Queen's Gambit Accepted: 3 Nf3 Nf6 sidelines.} 7. g3 e6 8. Bg2 Be7 {The position is equal.} 9. O-O O-O 10. b3 Rc8 11. Bb2 b5 12. Qc2 {[#]} Bh5 $1 $146 {[%mdl 8] An important novelty.} ({Predecessor:} 12... c5 13. Rfc1 Nd5 14. Qd1 Qb6 15. dxc5 Nxc5 16. Bd4 Rfd8 17. Qc2 Qb8 18. Qb2 f6 {1-0 (40) Predke,A (2650)-Inarkiev,E (2682) Izhevsk 2019}) 13. Rfc1 Bg6 14. Qd1 Qb6 15. e3 Rfd8 16. Qe2 a6 17. a3 a5 18. h3 h6 19. Bf1 Ne4 20. Nxe4 Bxe4 21. Nd2 Bg6 22. a4 {[%cal Ra4b5]} Bb4 23. Nf3 {[%cal Ra4b5]} Be4 24. Ne1 {[%cal Ra4b5]} bxa4 25. bxa4 Bxe1 26. Rxe1 Qb7 27. Bc3 c5 28. Bxa5 Re8 29. Bc3 cxd4 30. exd4 ({Stronger than} 30. Bxd4 e5 $17) 30... Nf6 31. Rec1 Bf3 32. Qb5 Qa8 33. Qa6 Qd5 34. Qb5 Qa8 $1 35. Bd2 Rb8 36. Qa6 Qd5 37. Qc4 Qf5 38. Qc2 (38. Ra3 $16) 38... Be4 $1 $14 {[%cal Re4c2]} 39. Qd1 Rb2 (39... Bf3 $5 {[%cal Rf3d1]} 40. Qe1 Rb2 $14) 40. g4 Qd5 (40... Qg6 $1 $14) 41. Bc3 (41. Bf4 $16) 41... Rb3 42. Be1 Reb8 (42... Bf3 $11 43. Qc2 Be4) 43. Rc5 (43. a5 $14) 43... Qd7 44. Rb5 R8xb5 45. axb5 Qd5 46. Ra8+ Kh7 47. Rd8 Rxh3 48. Bxh3 Qxd8 49. f3 Bb7 50. Qd3+ Kg8 51. Bf1 Qd6 52. Qe3 Qd5 53. Kf2 Qa2+ 54. Be2 Nd5 55. Qd2 Qa3 56. Kg1 Qd6 ({Black should play} 56... g5 $1 $15) 57. Bf1 $11 Qa3 ({Black should try} 57... Qc7 $11) 58. Be2 $15 Qa8 (58... g5 $1 $15) 59. Bg3 $11 Qa1+ 60. Be1 g5 61. Kh2 Nf4 62. Bf2 (62. Bd1 $15) 62... Qa8 $17 63. Bg3 $2 {[%mdl 8192] [#]} (63. Kg3 $17 {is more resistant.}) 63... Nxe2 $19 64. Qxe2 Bxf3 65. Qf2 Qe4 66. d5 (66. Kg1 $142) 66... Qxd5 (66... Qxg4 $142 67. dxe6 Qh5+ {[%mdl 64] Zwischenzug} 68. Bh4 fxe6) 67. b6 (67. Qe3 $142) 67... Qd1 (67... Qd3 $142 68. Kh3 Qe4) 68. Kh3 Bxg4+ (68... h5 $142 69. Qe1 hxg4+ 70. Kh2 Qc2+ 71. Qf2 Qh7+ 72. Bh4 Qxh4+ 73. Qxh4 gxh4 74. b7 Bxb7 75. Kg1 g3 76. Kf1 h3 77. Ke2 g2 78. Kf2 h2 79. Ke1 h1=Q+ 80. Kd2 g1=Q 81. Kc2 Qc5+ 82. Kb2 Qg2+ 83. Kb3 Qgc2#) 69. Kg2 Qd5+ 70. Kh2 Bf3 71. Qc2 h5 {[#] Strongly threatening ...h4.} 72. Qc8+ Kh7 {( -> ...Qd2+)} 73. Qc2+ Qe4 74. Qd2 h4 75. Bd6 g4 {Black used his chance. Accuracy: White = 61%, Black = 78%.} (75... Qb1 $142 76. Qg2 Bxg2 77. Kxg2 Qf5 78. b7 h3+ 79. Kg3 Qf1 80. Kg4 Kg6 81. b8=Q Qg2+ 82. Bg3 f5#) 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.31"]
[White "Basso, Pier Luigi"]
[Black "Aditya Mittal"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2600"]
[BlackElo "2427"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,79,41,25,30,18,22,17,24,23,27,8,12,13,47,46,58,62,60,57,112,100,113,100,128,118,113,74,70,55,86,2,85,79,64,16,143,132,208,95,89,66,267,261,470,427,451,445,620,653,626,608,839,191,856,836,1565,1425,1215,592,554,543,702,706,889,887]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. e4 Bb4 6. Bg5 c5 7. Bxc4 cxd4 8. Nxd4 Qa5 9. Bd2 Qc5 {D39: Queen's Gambit Declined: Ragozin Defence with 5 Bg5 dxc4.} 10. Bb5+ Bd7 11. Nb3 Qe7 {The position is equal.} 12. Bd3 Nc6 13. a3 Bd6 14. Be3 $5 {[%mdl 4] A promising side line.} a6 15. O-O {[#]} h5 $146 {Black wants to play ...Ng4.} ({Predecessor:} 15... O-O 16. f4 e5 17. f5 Nd4 18. Nxd4 exd4 19. Bxd4 Bc5 20. Bxc5 Qxc5+ 21. Kh1 Bc6 22. Qf3 Rfe8 23. Qg3 Rad8 {½-½ (23) Gelfand,B (2695)-Tkachiev,V (2615) Groningen 1997}) 16. h3 Ng4 17. Bb6 $1 {Threatens to win with f4.} (17. hxg4 $2 Bh2+ $1 {[%mdl 512]} 18. Kh1 Qh4 $19) 17... Bh2+ 18. Kh1 Bb8 19. Be2 g5 20. Nc5 Bc8 21. g3 Nge5 22. Bxh5 Qf6 23. N5a4 (23. f4 gxf4 24. N5a4 (24. Rxf4 $2 Qg5 $19 {[%mdl 64] Double Attack}) 24... Rh7 $17) ({White should play} 23. N3a4 $16) 23... Qh6 (23... Nd7 $1 $11 {remains equal.}) 24. g4 $16 Qf6 25. Kg2 $36 {[%mdl 2048] White has the initiative.} Nc4 {[#]} (25... Bd7 $11 {keeps the balance.}) 26. Qe2 $1 {[%cal Re2c4]} N6e5 {[#]} ({Not} 26... Nxb6 $2 27. Nxb6 Qf4 28. Rh1 $18) (26... N4e5 $16) 27. Rad1 (27. b3 $1 $18 {[%cal Rb3c4] and the rest is easy.} Nd6 28. Be3) 27... Bd7 28. b3 Nxa3 $2 {Loses the game.} (28... Nxb6 $14 29. Nxb6 Ra7) 29. Nc5 $18 Nb5 $2 (29... Qf4 30. Nxe6 (30. Nxb7 Rxh5 31. gxh5 Nec4 $15) 30... Ng6 31. Nxf4 Nxf4+ 32. Kg1 Nxe2+ 33. Nxe2 Ba7) 30. Nxd7 Nxd7 31. Rxd7 Kxd7 32. Rd1+ Ke8 33. Nxb5 Qe5 34. Rd8+ Ke7 {( -> ...Qh2+)} 35. Qd3 {Qd7+ would kill now.White is clearly winning.} Bd6 36. Rxd6 {Strongly threatening Rd7+.} Qxb5 37. Qxb5 (37. Qd2 $142 {b4 is the strong threat.} a5 38. Be3) 37... axb5 38. Bc5 Rhc8 39. Bb4 Ke8 40. Rxe6+ {Accuracy: White = 76%, Black = 45%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.32"]
[White "Erigaisi Arjun"]
[Black "Makarian, Rudik"]
[Result "1/2-1/2"]
[ECO "A38"]
[WhiteElo "2563"]
[BlackElo "2414"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,104,25,29,29,27,26,20,44,37,40,36,43,17,18,11,12,0,0,0,0,0,0,0,0,0,0,0,0,13,102,95,109,121,93,114,131,87,86,95,95,87,73,89,110,125,118,18,18,19,22,0,0,0,31,0,0,0,0,0,0,0,0,0,0,0,0,0,150,153,143,185,70,8,18,80,80,0,20,25,80,0,8,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 g6 2. Nc3 c5 3. g3 Bg7 4. Bg2 Nf6 5. Nf3 Nc6 6. d4 cxd4 7. Nxd4 h5 {A38: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3 Nf6.} 8. h3 Nxd4 9. Qxd4 d6 10. b3 O-O {White must now prevent ...Ne4!} 11. Bb2 Be6 12. Bxb7 Rb8 $1 {[%cal Rb8b7]} 13. Bg2 ({Avoid the trap} 13. Qxa7 $2 Qd7 $19) 13... Qa5 $1 14. O-O Nd5 15. Nxd5 {[%csl Gb2][%cal Rd4g7]} Bxd4 16. Nxe7+ Kh7 17. Bxd4 Qc7 18. Nd5 Bxd5 $1 19. Bxd5 h4 20. Bf6 hxg3 (20... Rbe8 $1 $11) 21. fxg3 $16 Qb6+ 22. Kg2 {[%mdl 1024] White has strong compensation.} Qe3 23. Rf2 $1 g5 24. g4 Kg6 25. Raf1 $1 Rbe8 26. Rf5 Qxe2+ 27. R1f2 Qe3 28. Bxg5 Qd3 29. Bf4 (29. R5f3 $16 Qxf3+ 30. Kxf3 (30. Rxf3 Kxg5 31. Rf5+ Kg6 $14) 30... Kxg5 31. h4+ Kf6 32. Kf4) 29... Re2 $11 30. Bxd6 Rxf2+ $1 31. Rxf2 Rd8 $1 {[%cal Rd8d6]} 32. Bxf7+ Kh7 33. Bg3 Qe4+ 34. Rf3 $1 Rf8 {( -> ...Rxf7)} 35. Bd5 Qc2+ 36. Rf2 Rxf2+ 37. Bxf2 Qxa2 38. b4 {[%cal Bb3b4,Bb4b5,Bb5b6,Bb6b7][%mdl 32]} a6 39. b5 a5 (39... axb5 $11 40. Be4+ Kg7 41. cxb5 Qe2) 40. b6 $16 a4 41. b7 $1 {[%cal Rb7b8]} Qb2 42. c5 (42. Kg3 $14 Qe5+ 43. Kf3) 42... a3 $11 43. c6 Qe5 {[#]} 44. Ba2 (44. Kf1 $1 $16) 44... Qe4+ 45. Kg1 Qf4 {[#]} (45... Qe5 $11) 46. Kg2 ({Better is} 46. Bd5 $1 $16) 46... Qd6 {The position is equal.} 47. Kg1 {Hoping for Bd5.} Qd1+ 48. Kg2 Qd6 49. Kf1 {aiming for Ke2.} Qd1+ 50. Be1 Qf3+ 51. Kg1 Qe3+ 52. Kg2 Qxe1 {Accuracy: White = 77%, Black = 94%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.33"]
[White "Chigaev, Maksim"]
[Black "Badelka, Olga"]
[Result "1/2-1/2"]
[ECO "B29"]
[WhiteElo "2616"]
[BlackElo "2404"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,99,51,51,48,50,45,37,40,31,20,27,33,26,35,14,79,0,13,0,31,24,48,36,70,64,66,56,58,56,54,56,65,62,79,63,107,0,8,0,0,0,0,0,0,0,0,0,0,0,0,0,32,35,70,0,14,0,25,33,148,39,40,33,52,39,50,32,39,0,0,0,0,0,0,0,0,0,0,0,0,0,51,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 Nf6 3. Nc3 d5 4. exd5 Nxd5 5. Bb5+ Bd7 6. Ne5 Nf6 {B29: Sicilian: 2 Nf3 Nf6 (Nimzowitsch Variation).} 7. Qf3 Qc8 {7...Qc7 is not played anymore.} 8. Nxd7 {8.a4 injects fresh life into this line. Played by Yangyi Yu in October 2019.} Nbxd7 {White is slightly better.} 9. b3 {[#]} e6 $146 ({Predecessor:} 9... a6 10. Bxd7+ Qxd7 11. Bb2 Qe6+ 12. Ne2 Qe4 13. Qxe4 Nxe4 14. Ng3 Nf6 15. O-O-O e6 {½-½ (45) Yu,Y (2763)-Kovalev,V (2661) Douglas 2019}) 10. Bb2 a6 11. Bxd7+ Qxd7 12. O-O-O Be7 (12... Rc8 $11 {remains equal.}) 13. Qg3 (13. Ne4 $16) 13... O-O {[#]} 14. Ne4 $1 {[%mdl 512]} Kh8 (14... Nxe4 15. Qxg7#) 15. h4 Qd5 16. d3 Rac8 17. Kb1 Qh5 18. f3 b5 19. Qf2 Qd5 20. h5 h6 21. Qe3 {aiming for Nxf6.} Ng8 22. c4 Qc6 23. Rc1 (23. g4 $16) 23... f5 $11 24. cxb5 Qb6 $1 25. Nf2 axb5 26. Nh3 Rfe8 27. g4 $40 {[%mdl 128] Black needs to defend precisely.} Bf6 28. g5 Bxb2 29. Kxb2 e5 30. Rhg1 Qd6 31. gxh6 gxh6 32. Kb1 (32. Rg6 $14 Qd7 33. Ng1) 32... Re6 33. f4 {Hoping for Qg3.} exf4 34. Qd2 Re4 {[#]} (34... f3 $1 $14) 35. Rcf1 (35. Qb2+ $1 $16 Rd4 36. Qg2) 35... c4 $1 $14 {[%cal Rc4c3] ...c3 is the strong threat.} 36. Qc3+ Qd4 37. Qxd4+ Rxd4 38. dxc4 bxc4 39. Nxf4 {Strongly threatening Ng6+.} Ne7 $1 40. Ng6+ Nxg6 41. Rxg6 cxb3 42. axb3 $11 {[%mdl 4096] Endgame KRR-KRR} Rb8 43. Rxh6+ Kg7 44. Rg6+ Kh7 45. Rf3 Rd2 (45... Rh4 $11) 46. Rc6 ({Better is} 46. Rf6 $14) 46... Rh2 {The position is equal.} 47. h6 Rb7 48. Rcc3 Rh5 49. Rc5 Kxh6 50. Rfxf5 {Accuracy: White = 83%, Black = 74%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.34"]
[White "Jumabayev, Rinat"]
[Black "Kozionov, Kirill"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "2646"]
[BlackElo "2466"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,104,17,11,13,10,25,17,19,27,24,29,22,30,30,27,33,39,26,22,21,47,23,32,32,47,2,7,0,41,34,103,110,169,113,258,250,281,264,309,260,378,343,368,302,258,245,249,225,278,244,270,264,275,271,264,278,270,257,247,196,227,224,217,223,216,195,212,226,218,221,187,0,0,0,1,0,119,87,104,0,368,368,368,368,368,6,997,806,29941,0,29950,12178,6327,6283,6287,710,29975]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. Ba4 Ngf6 5. O-O a6 {Hoping for ...b5.} 6. c4 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} g6 7. Nc3 Bg7 8. h3 $5 {[%mdl 4] The position is equal. Exploring less charted territory.} O-O 9. d3 b6 10. Rb1 Bb7 11. b4 Rb8 12. Bg5 h6 13. Be3 e6 14. Qd2 Kh7 {[#]} 15. Rb3 $146 ({Predecessor:} 15. Rfe1 Ba8 16. a3 Qc7 17. Rec1 Nh5 18. g4 Nhf6 19. Bf4 Ng8 20. Kh2 g5 21. Bg3 {½-½ (48) Bartel,M (2602)-Navara,D (2727) Poland 2018}) 15... Qc7 16. Rfb1 Ba8 17. Qc1 Rfc8 18. Qa3 b5 (18... cxb4 {is more complex.} 19. Rxb4 d5 20. Bxd7 Nxd7 21. exd5 Bf8) 19. cxb5 c4 (19... cxb4 $14 20. Qxb4 Nc5) 20. dxc4 $16 Nxe4 (20... Nb6 $16) 21. Nxe4 ({White should try} 21. bxa6 $18 {And now a7 would win.} Nxc3 22. Rxc3) 21... Bxe4 (21... axb5 $16 {was called for.} 22. Nfg5+ (22. Bxb5 Bxe4 23. Qa7 Rb7 $15) 22... hxg5 23. Nxg5+ {[%mdl 64] Double Attack} Kg8 24. Bxb5 Ne5) 22. bxa6 $18 Bxb1 23. Rxb1 Nb6 24. Bb5 d5 (24... Ra8 {keeps fighting.} 25. Rc1 Rcb8) 25. c5 (25. a7 Ra8 $16) 25... Na8 26. Bf1 e5 27. Rd1 d4 28. Bc1 $1 f5 29. Bb2 d3 30. Qxd3 ({Less strong is} 30. Bxd3 e4 $16) 30... Rd8 31. Qc2 Rxd1 32. Qxd1 Rxb4 33. Bc3 Rb8 34. Qd5 {[%cal Rc3e5]} Rd8 35. Qb7 e4 36. Be5 Bxe5 37. Nxe5 Rb8 38. Qd5 $1 {aiming for Nd7.} Rd8 39. Qe6 $1 {[%cal Re6g6]} Qg7 {[#] White must now prevent ...Nc7.} 40. Nf7 $2 ({White should play} 40. Nxg6 $1 $18 Nc7 41. Qb6 (41. Qxf5 Qxg6 42. Qe5 Rc8 $16)) 40... Rd1 $11 41. Qe7 Kg8 ({Don't go for} 41... Rxf1+ $2 42. Kxf1 Kg8 43. Qb7 $18) 42. Qb7 Qxf7 (42... Qa1 $11) 43. Qxa8+ {[%mdl 4096] Endgame KQR-KQB} Kh7 {[#]} 44. Qb8 ({Only move:} 44. Qb7 $1 $16 {[%cal Rb7f7]} Rd7 45. Qb6) 44... Qxa2 $2 {[%mdl 8192]} (44... Qc4 $1 $11 {and Black has nothing to worry.} 45. Qc7+ Kh8 46. Qd8+ Rxd8 47. Bxc4 Ra8) 45. a7 $18 Ra1 46. Qc7+ Kh8 47. Qd8+ $2 (47. Qe5+ $18 Kh7 48. Qe7+ Kh8 49. Qd8+ Kg7 50. c6) 47... Kh7 $2 {[%mdl 8192]} (47... Kg7 $11) 48. c6 Qa6 49. Qd7+ $2 (49. Qc7+ {mates} Kg8 50. Qb8+ Kh7 51. Qb7+ Qxb7 52. cxb7 Rxa7 53. b8=Q Ra1 54. Qb7+ Kg8 55. Qb2) 49... Kh8 $2 {[%mdl 8192] [#]} (49... Kg8 $11 50. a8=Q+ Qxa8) 50. a8=Q+ $1 {[%mdl 512]} Qxa8 {White is clearly winning.} 51. c7 Rxf1+ 52. Kh2 (52. Kxf1 $142 Qa1+ 53. Ke2 Qb2+ 54. Qd2 Qb5+ 55. Kd1 Qa4+ 56. Qc2 Qd7+ 57. Ke1) 52... Rxf2 {Accuracy: White = 76%, Black = 61%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.35"]
[White "Pogosyan, Stefan"]
[Black "Indjic, Aleksandar"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "2455"]
[BlackElo "2622"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,72,47,42,59,16,14,18,18,16,26,26,22,25,16,-9,-15,-24,-24,-76,-74,-47,-76,-66,-54,-43,-14,-10,0,-4,0,0,0,-68,-64,-66,-60,-51,-65,-62,-56,-47,-35,-35,0,-56,-31,-23,-28,-27,-21,-38,0,-18,0,-43,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 b6 7. Bg5 Bb7 8. f3 c5 9. dxc5 bxc5 10. e3 d6 {E32: Nimzo-Indian: Classical (4 Qc2): 4...0-0.} 11. Be2 Nbd7 12. Nh3 Qb6 {The position is equal.} 13. O-O a5 14. Rfd1 d5 15. Rac1 {[#]} Rfc8 $146 ({Predecessor:} 15... Ba6 16. Rd2 Rab8 17. Bh4 Rfc8 18. Bf2 a4 19. Nf4 g5 20. Nh3 h6 21. Bg3 Rb7 {½-½ (71) Ponomariov,R (2743)-Polgar,J (2677) Moscow 2002}) 16. Rd2 h6 17. Bxf6 Nxf6 18. Nf4 {[#]} (18. Nf2 $11) 18... d4 $1 $17 {[%cal Rd4c3][%mdl 512]} 19. exd4 cxd4 20. Qc2 a4 21. c5 Qc7 22. Nd3 $1 Nd7 23. Qd1 Ra5 24. Rdc2 Bd5 {Strongly threatening ...Bb3.} 25. Nb4 (25. Qd2 $11) 25... Bb3 $1 $36 {[%cal Rb3c2][%mdl 2048] Black is pushing.} 26. c6 Nf6 {...Qb6 is the strong threat.} 27. Qxd4 {aiming for Rd2.} Bxc2 28. Rxc2 Rd8 29. Qf2 Raa8 30. Qc5 Ra5 31. Qf2 $1 Rda8 32. g3 Nd5 33. Bc4 Ne7 34. Bf1 Nd5 35. Bc4 Ne7 36. Bf1 Nd5 {Accuracy: White = 81%, Black = 88%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.36"]
[White "Savchenko, Boris"]
[Black "Radovanovic, Mihajlo"]
[Result "1-0"]
[ECO "B78"]
[WhiteElo "2573"]
[BlackElo "2458"]
[Annotator "TA"]
[PlyCount "47"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,47,33,34,13,70,71,75,67,143,139,202,200,191,184,309,277,283,278,366,366,365,352,813,808,29977,29978,29972,6004,3244,3177]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 O-O 9. Bc4 Bd7 10. O-O-O Rb8 11. Be2 {[#] B78: Sicilian Dragon: Yugoslav Attack, 9 Bc4 Bd7 10 0-0-0 Rc8.} a6 $146 (11... Nxd4 $11 12. Bxd4 Qa5) ({Predecessor:} 11... b5 12. Ncxb5 Qc8 13. Kb1 Qb7 14. Nb3 Rfc8 15. g4 a6 16. N5d4 a5 17. Nxc6 Qxc6 18. Nd4 Qb7 {0-1 (52) Cvak,R (2271)-Efendiyev,E (2533) ICCF email 2012}) 12. g4 $14 b5 13. h4 {White is better.} Qa5 (13... Nxd4 $14 14. Bxd4 Qa5) 14. Nb3 $1 $16 {[%cal Rb3a5]} Qc7 (14... Qd8 $16) 15. Bh6 $18 Bxh6 16. Qxh6 Be6 {[#]} (16... Ne5 $142) 17. h5 $1 Bxb3 18. axb3 {Threatens to win with Nd5.} e6 19. g5 Ne8 ({Much worse is} 19... Nxh5 {[#]} 20. f4 $1 $18 {[%mdl 512]}) 20. f4 b4 $2 (20... Rb7 21. Kb1 Ra7) 21. Bc4 {White threatens hxg6 and mate.} Nd8 {[#]} 22. Nd5 $1 {[%mdl 512]} exd5 23. Bxd5 {Threatening mate with hxg6.} Rc8 24. Rd2 {Black got outplayed after the opening. Accuracy: White = 100%, Black = 28%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.37"]
[White "Antipov, Mikhail Al."]
[Black "Krishna C R G"]
[Result "1-0"]
[ECO "C18"]
[WhiteElo "2562"]
[BlackElo "2443"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,51,0,0,0,0,0,0,0,0,0,0,12,104,116,102,88,104,69,160,180,170,149,167,160,458,462,434,427,422,419,419,417,408,367,378,369,467,454]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. h4 Qa5 8. Bd2 Qa4 9. Rb1 {C18: French: 3 Nc3 Bb4: Main line: 7 h4 and 7 Qg4.} Qxa3 10. h5 h6 11. Ra1 {The position is equal.} Qb2 12. dxc5 {aiming for Rh4.} Nd7 13. Rh4 {Strongly threatening Rb4.} Nc6 (13... a5 $11 {keeps the balance.}) 14. Rha4 $1 $36 {[%mdl 2048] White is on the roll.} Nxc5 15. R4a2 Qb6 {And now ...Ne4 would win.} 16. Be3 {[%mdl 1024] Hoping for Rb1. White has strong compensation.} a6 {[#]} (16... a5 $14) 17. Rb1 $1 {[%cal Rb1b6]} Qa7 {[#]} 18. Bb5 $1 {[%cal Rb5c6][%mdl 512]} Bd7 (18... axb5 19. Rxa7) 19. Qg4 b6 $2 ({Avoid the trap} 19... Nxe5 $2 20. Qxg7 O-O-O 21. Bxa6 $18) (19... Qb6 $16) 20. Qxg7 $18 Rf8 21. Bxc5 bxc5 22. Rxa6 {[%mdl 64] Double Attack} Qb7 23. Rxa8+ Qxa8 24. Bxc6 Bxc6 25. Ne2 Kd7 26. Nf4 {Accuracy: White = 100%, Black = 46%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.38"]
[White "Gadimbayli, Abdulla"]
[Black "Ivic, Velimir"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "2460"]
[BlackElo "2558"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,90,21,25,21,21,24,29,35,10,16,21,19,17,20,-9,0,0,0,0,0,0,3,0,12,0,0,-35,-35,-104,-126,-205,-201,-208,-216,-197,-211,-219,-203,-200,-193,-220,-233,-218,-167,-182,-87,-99,-83,-78,-75,-137,-127,-139,-116,-107,-117,-110,-107,-116,-114,-110,-112,-123,-120,-382,-393,-754,-357,-692,-416,-1595,-1385,-29983,-29984,-29983,-29982]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. h3 Nf6 7. Nc3 Nd7 8. Be3 e5 9. Qd2 h6 {B31: Sicilian: 2...Nc6 3 Bb5 g6.} 10. O-O b6 $1 {[%mdl 4] is more profitable than 10...Qe7 at the moment.} 11. a4 a5 {White has an edge.} 12. Nh2 Nf6 $5 {[%mdl 4] [#] Exploring less charted territory.} 13. f4 $146 ({Predecessor:} 13. Rae1 Be6 14. Ne2 g5 15. Qc3 Rg8 16. Ng3 Qc7 17. f3 O-O-O 18. Ng4 Nd7 19. Bf2 {½-½ (45) Idani,P (2604)-Ismagambetov,A (2545) Astana 2019}) 13... exf4 14. Rxf4 Be6 15. Raf1 {aiming for Qf2.} Qe7 16. Ne2 O-O-O 17. Qc1 Nd7 18. R4f2 Ne5 19. Nf4 Bd7 20. Nf3 Rhf8 21. Nxe5 Bxe5 22. c3 ({Better is} 22. b3 $15) 22... Bc7 $17 23. Qc2 {[#]} (23. Ne2 $17 {keeps fighting.} g5 24. Rf3) 23... g5 $1 $19 24. Ne2 {[#]} f5 $1 {[%mdl 512]} 25. d4 (25. exf5 Qxe3) 25... f4 ({Worse is} 25... fxe4 26. Rxf8 Rxf8 27. Rxf8+ Qxf8 28. dxc5 $11) 26. Bd2 Rde8 27. e5 Bf5 28. Qd1 Rd8 29. Re1 Qh7 30. Qc1 Be4 (30... Qd7 $19 31. Qa1 Qd5) 31. b4 $17 c4 32. bxa5 bxa5 33. Qa3 (33. Bxf4 $142 gxf4 34. Nxf4) 33... Bd5 34. Ref1 {[%cal Rd2f4] [#]} f3 $1 {[%mdl 576] Decoy} 35. gxf3 Qd3 36. Ng3 Rxf3 37. Rxf3 Bxf3 38. Rf2 Bd5 39. Kh2 Re8 $40 {[%mdl 128] Black is out for blood.} 40. Qc5 $2 {[%mdl 8192] White does not recover from this.} (40. Qa1 $17 {was necessary.}) 40... h5 $19 41. Bxg5 $2 (41. Nxh5 g4 42. hxg4) 41... Qxc3 (41... h4 $142 42. Bxh4 {[#]} Qe3 $1 {[%mdl 512]}) 42. Bd2 $2 (42. Qa7 Qe1 43. Re2) 42... Qb2 43. Be1 (43. Qa7 $142 c3 44. Be3) 43... Qb1 {Threatens to win with ...h4.} 44. Rf8 Qxe1 45. Rxe8+ Kb7 {Accuracy: White = 46%, Black = 83%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.39"]
[White "Sivuk, Vitaly"]
[Black "Nikitenko, Mihail"]
[Result "1/2-1/2"]
[ECO "D15"]
[WhiteElo "2557"]
[BlackElo "2440"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,78,-14,-14,-23,-18,-31,-15,-40,0,17,41,50,181,164,177,174,139,220,418,428,404,391,400,125,129,118,121,120,89,110,59,0,0,0,0,0,0,8,0,-151,-108,-251,-244,-236,-155,-195,-190,-366,-366,-366,-366,-366,-341,-447,-446,-583,-583,-583,-567,-563,-531,-701,-482,-1198,-1172,-866,0,0,0,0,0]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. e4 b5 $1 6. Be2 {D15: Slav Defence: 4 Nc3 a6 and gambit lines after 4 Nc3 dxc4.} e6 7. O-O Bb7 $1 {7...Bb7 is better than 7...Be7.} 8. b3 b4 (8... Bb4 $15 9. Qc2 cxb3 10. axb3 Bxc3 11. Qxc3 Nxe4) 9. e5 $1 $11 Nfd7 10. Ne4 {[#]} cxb3 $146 {[#]} ({Black should play} 10... c5 $1 $14 11. Nxc5 Nxc5 12. dxc5 Bxc5) ({Predecessor:} 10... c3 11. Bg5 Qc7 12. Bd3 Nb6 13. Nh4 Nd5 14. Qh5 h6 15. f4 Bc8 16. f5 exf5 17. Nd6+ Bxd6 18. exd6 Qxd6 19. Rae1+ Kf8 20. Bxf5 Bxf5 21. Rxf5 Qd7 22. Be7+ {1-0 (22) Secheres,A (2388)-Marjanovic,A (2326) Satu Mare 2018}) 11. Nfg5 $1 $36 {[%mdl 2048] White is on the roll.} (11. axb3 $6 c5 $14) 11... Be7 12. Bc4 (12. axb3 $6 c5 $16) (12. Qxb3 $6 c5 $14) 12... b2 13. Bxb2 {Hoping for Qh5!} Bxg5 $2 (13... O-O) 14. Nd6+ {[%mdl 64] Double Attack} Kf8 15. f4 ({Less strong is} 15. Nxb7 Qe7 $18) 15... Be7 16. f5 $2 (16. Nxb7 $18 {and the rest is easy.} Qc7 17. f5) 16... Bxd6 $16 17. fxe6 {[#]} Nxe5 $1 {[#]} 18. Qh5 $1 (18. dxe5 Bc5+) 18... Ng6 19. Rxf7+ {[%mdl 64] Double Attack} Ke8 {White must now prevent ...Ba6.} 20. e7 (20. Rxb7 $14 Qh4 21. Qxh4 Nxh4 22. Re1 (22. Rxg7 Nf5 $11)) 20... Bxe7 $11 {aiming for ...Kd7.} 21. Re1 a5 22. Rfxe7+ Qxe7 23. Rxe7+ Kxe7 24. Qc5+ $2 (24. h4 $1 $11) 24... Kd7 $17 25. Qb6 (25. h4 $17 {was necessary.}) 25... Ba6 $19 26. Qxa5 Ne7 27. d5 cxd5 ({Don't play} 27... Bxc4 28. Qxa8 Kd6 29. Qb7 $17) 28. Bxd5 $2 {[#]} (28. Bb5+ Nbc6 29. Bxc6+ Kxc6 30. Qxb4) 28... Bb7 $1 29. Qb5+ (29. Bxb7 Rxa5) 29... Bc6 30. Bxc6+ Nbxc6 31. Bxg7 Rhg8 32. Bf6 {Bxe7 is the strong threat.} Rxa2 33. g3 Rb8 34. Qd3+ Ke8 35. Qxh7 b3 {And now ...b2 would win.} 36. Qh5+ (36. Bb2 $142) 36... Kd7 37. Qg4+ Kd6 $2 ({Better is} 37... Kc7 $19 38. Qf4+ Kb7) 38. Qf4+ $11 Ke6 39. Bxe7 $1 Ne5 {Quite a comeback for White. Accuracy: White = 67%, Black = 55%.} (39... Kxe7 $5 40. Qc7+ $8 {[%mdl 64] Double Attack} Kf8 41. Qxc6 b2 42. Qd6+ Kf7 43. Qf4+ Ke6 44. Qg4+ Kf7 45. Qf4+ Ke6 46. Qg4+ Kf7 47. Qf4+ $11) 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.40"]
[White "Murzin, Volodar"]
[Black "Frolyanov, Dmitry"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2442"]
[BlackElo "2556"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,91,14,11,10,12,15,6,9,13,44,11,16,13,52,39,50,44,56,62,61,50,44,1,17,0,0,0,0,0,13,0,17,0,8,13,13,12,12,12,28,20,20,19,29,3,35,12,97,90,124,134,136,134,121,76,140,139,171,117,265,254,246,256,237,234,247,195,604,599,733,698,29983,29983,29979,6095,6087,6087,6079,5162]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 e5 6. Bxc6 dxc6 7. d3 Qe7 8. a4 $1 {[%mdl 4] is recently more successful than 8.Nbd2. Played by Magnus Carlsen in February 2020.} Nf6 {B31: Sicilian: 2...Nc6 3 Bb5 g6.} 9. Bg5 O-O 10. Na3 h6 {The position is equal.} 11. Be3 {[#]} Rd8 $146 ({Predecessor:} 11... b6 12. Nc4 Nd7 13. Nfd2 Ba6 14. Kh1 Rad8 15. Qe2 Rfe8 16. g3 Bc8 17. f4 exf4 18. gxf4 {½-½ (40) Piacun,E (2365)-Adams,J (2387) ICCF email 2018}) 12. Qc1 Kh7 13. Nc4 Nh5 14. a5 Bg4 15. Nfd2 Be6 16. g3 f6 17. Qd1 Bf8 18. f4 exf4 19. gxf4 f5 20. Qf3 Bg7 21. exf5 Bxf5 22. Ne4 Bxe4 23. Qxe4 Qxe4 24. dxe4 Bd4 25. f5 gxf5 26. exf5 Rd5 27. Bxd4 Rg8+ 28. Kh1 {Hoping for Re7+.} cxd4 29. a6 $36 {[%mdl 2048] Black is under pressure.} b5 30. Ne5 Rg7 (30... c5 $11 {remains equal.}) 31. Nxc6 $16 Rxf5 32. Nxd4 Rd5 33. c3 Nf4 34. Rg1 Nd3 (34... b4 $142) 35. Rxg7+ Kxg7 {[%mdl 4096] Endgame KRN-KRN} 36. b4 ({Better is} 36. Nc6 $18 Rd7 37. Ra5) 36... Nf2+ {This move loses the game for Black.} (36... Kg6 $16 {keeps fighting.}) 37. Kg2 $18 Ne4 38. Nc6 Rd7 {[#]} 39. c4 $1 {[%mdl 512]} bxc4 {[#]} 40. b5 $1 {[%cal Rb5b6]} c3 $2 {[#]} (40... Nc5 41. b6 Nxa6 42. bxa7 (42. Rxa6 axb6 43. Rxb6 Rd6 $16) 42... Nc7) 41. b6 $1 {[%mdl 512]} Nc5 (41... axb6 42. a7) 42. bxa7 Nb3 43. a8=Q Nxa1 44. Nb4 (44. Qe8 $142 Rf7 45. a7 Rxa7 46. Nxa7 c2 47. Qe5+ {[%mdl 64] Double Attack} Kg6 48. Qxa1 Kf5 49. Qc3) 44... c2 {[#]} 45. Nxc2 $1 Nxc2 46. Qe4 {Accuracy: White = 81%, Black = 55%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.41"]
[White "Grigoriants, Sergey"]
[Black "Zarubitski, Viachaslau"]
[Result "1/2-1/2"]
[ECO "B47"]
[WhiteElo "2539"]
[BlackElo "2432"]
[Annotator "TA"]
[PlyCount "42"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,42,38,31,37,32,10,8,2,0,1,8,19,13,31,19,43,27,24,15,24,18,17,13,19,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. g3 a6 7. Bg2 Nf6 8. O-O h5 {B47: Sicilian: Taimanov: 5 Nc3 Qc7 6 f4, 6 g3 and 6 Be2.} 9. h3 Bc5 10. Nxc6 dxc6 11. Qf3 e5 12. Na4 {[%cal Bc3a4,Ba4c5,Bc5d3,Bd3f4][%mdl 32] [#]} Ba7 $146 ({Predecessor:} 12... Be7 13. Be3 c5 14. Rfd1 b5 15. Nc3 b4 16. Nd5 Nxd5 17. Rxd5 Be6 18. Rdd1 g6 {0-1 (37) Iturbide Arnedo,O (2182)-Beltran de Heredia Eguiaz,M (2224) Madrid 2017}) 13. Be3 b5 14. Nc5 h4 15. g4 Qe7 16. Nd3 $36 {[%mdl 2048] White has the initiative.} Nh7 17. Bxa7 Rxa7 {The position is equal.} 18. Qe3 {Black must now prevent Nxe5!} Rc7 19. f4 exf4 20. Nxf4 O-O 21. e5 Ng5 {Accuracy: White = 100%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.21"]
[Round "3.42"]
[White "Sreeshwan Maralakshikari"]
[Black "Iljiushenok, Ilia"]
[Result "0-1"]
[ECO "E54"]
[WhiteElo "2440"]
[BlackElo "2519"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,88,0,15,0,12,0,0,0,0,-11,0,-31,25,0,4,0,13,10,25,0,0,0,0,0,0,-11,10,0,0,-22,0,-47,-8,-61,-57,-68,-76,-112,-91,-98,-100,-131,-120,-140,-111,-300,-286,-468,-464,-465,-461,-476,-493,-479,-189,-461,-420,-576,-566,-5597,-5597,-5597,-5593,-5489,-5452]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 dxc4 7. Bxc4 c5 8. O-O cxd4 9. exd4 b6 10. Bg5 Bb7 11. Qe2 Bxc3 12. bxc3 Nbd7 13. Rac1 Qc7 14. Nd2 {is recently more successful than 14.Bd3. E54: Nimzo-Indian: Rubinstein: Main Line: 7...dxc4 8 Bxc4.} Nd5 15. f3 Rac8 16. Rfe1 {The position is equal.} N7f6 17. Qf1 Nh5 18. Bh4 Qd7 (18... Qf4 $15 19. Qf2 Qh6) 19. Bf2 Rc7 20. Bb5 Bc6 21. Bd3 Rfc8 22. g3 Nhf6 23. c4 Ne7 24. Be3 Bb7 25. g4 Rd8 26. Bb1 Ng6 27. Nb3 Qd6 28. Red1 Rcc8 29. g5 ({Better is} 29. Nd2 $11) 29... Nh5 $15 30. Be4 Qe7 31. Qh3 Nhf4 32. Bxf4 {And now d5 would win.} Bxe4 33. Be3 Bb7 34. Qg4 Qa3 35. Rc2 $2 {[#] Loses the game.} (35. h4 $17) 35... Ne5 $1 $19 {[%mdl 576] Double Attack, Pin} 36. Qf4 $2 (36. Qg3 Nxf3+ 37. Kf2) (36. dxe5 Rxd1+) 36... Nxf3+ 37. Kf2 {[#] If White can now play d5 this consolidates a bit.} e5 $1 {[%mdl 512]} 38. Qf5 (38. dxe5 Rxd1) 38... exd4 39. Nxd4 Nxd4 $2 ({But not} 39... Re8 40. Qd3 $19) (39... Qd6 40. Qh3 f5 41. Nxf5 Qe5 42. Rxd8+ Rxd8 43. Nh6+ gxh6) 40. Bxd4 $2 (40. Rxd4 Re8 41. Re2) 40... Qd6 41. Kg1 Qc6 {Hoping for ...Qh1+.Black is clearly winning.} 42. Qe5 {[%csl Gd4][%cal Re5g7]} Qh1+ 43. Kf2 Qf3+ 44. Ke1 Re8 {Accuracy: White = 45%, Black = 86%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.1"]
[White "Sethuraman, S.P."]
[Black "Mamedov, Rauf"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2641"]
[BlackElo "2643"]
[Annotator "TA"]
[PlyCount "33"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,33,17,16,11,12,15,9,14,15,16,6,6,16,3,13,13,11,0,23,0,0,0]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 Nbd7 $1 {[%cal Bb8d7,Bd7f8,Bf8e6][%mdl 32] 7...Nbd7 scores better than 7...0-0.} 8. h3 {D35: Queen's Gambit Declined: Exchange Variation.} Nf8 9. Nf3 Ne6 10. Bh4 g6 11. O-O O-O 12. Rb1 a5 13. a3 {[#]} Ne8 $5 $146 {[%mdl 8] New and interesting.} ({Predecessor:} 13... Ng7 14. b4 axb4 15. axb4 Nf5 16. Bg5 h6 17. Bf4 Bd6 18. Bxd6 Nxd6 19. b5 Nfe4 {1-0 (56) Kharitonov,A (2547)-Le Goff,R (2229) Cattolica 2019}) 14. Bg3 Bd6 15. Bh4 Be7 16. Bg3 Bd6 17. Bh4 {An uneventful encounter. Accuracy: White = 100%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.2"]
[White "Idani, Pouya"]
[Black "Paravyan, David"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2577"]
[BlackElo "2629"]
[Annotator "TA"]
[PlyCount "44"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,44,24,8,11,0,0,0,0,0,16,0,8,17,0,10,10,2,0,0,9,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 Nf6 6. Re1 O-O 7. h3 e5 8. d4 cxd4 9. cxd4 d5 {The position is equal. 9...Nxd4 is a critical line. B31: Sicilian: 2...Nc6 3 Bb5 g6.} 10. dxe5 Nxe4 11. Nc3 Be6 12. Bf4 {[#]} Qb6 $146 {[#] Strongly threatening ...Nxc3.} ({Predecessor:} 12... Nxc3 13. bxc3 Qa5 14. Qd3 a6 15. Bxc6 bxc6 16. Nd4 c5 17. Nb3 Qc7 18. Qe3 Rfc8 {1-0 (34) Timoshenko,G (2560)-Baryshpolets,A (2389) Kiev 2008}) 13. Qe2 Rac8 14. Nxe4 dxe4 15. Bxc6 $1 Rxc6 16. Qxe4 Qxb2 17. Reb1 Bf5 {[#] Threatens to win with ...Qxa1.} 18. Rxb2 ({Not} 18. Qxf5 $2 Qxa1 19. Rxa1 gxf5 $17) 18... Bxe4 19. Rxb7 Rc4 20. Nd2 Bxg2 21. Kxg2 Rxf4 22. Nf3 a6 {A rather calm draw. Accuracy: White = 100%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.3"]
[White "Bharath Subramaniyam H"]
[Black "Zhou, Jianchao"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2402"]
[BlackElo "2622"]
[Annotator "TA"]
[PlyCount "147"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,147,42,21,33,25,32,14,89,85,83,69,81,80,88,84,78,69,70,70,47,46,77,54,55,56,84,31,47,27,29,35,90,90,97,95,110,110,187,129,128,137,143,141,137,123,157,77,459,168,168,168,168,168,179,167,318,317,312,300,310,307,547,509,445,429,1707,536,677,684,684,684,684,677,641,641,611,596,524,479,629,642,508,507,1403,1345,4133,1033,978,922,731,731,29978,516,0,0,29980,29981,29984,29985,29985,29986,29986,29987,29985,29986,29986,29987,29988,29989,29989,29990,29990,0,0,0,0,0,29981,0,29990,0,29983,0,29988,29989,29989,29990,29991,29990,29991,29990,29990,29991,29992,29991]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e6 7. g4 h6 {7...Be7 is a critical line. Played by Jan Krzysztof Duda in February 2020.} 8. Bg2 Be7 {B81: Sicilian Scheveningen: Keres Attack.} 9. Qd3 {[#]} Bd7 $146 ({Predecessor:} 9... Nc6 10. Nxc6 bxc6 11. e5 Nd5 12. exd6 Bxd6 13. Ne4 Bc7 14. c4 Nf4 15. Qxd8+ Kxd8 16. Kf1 {½-½ (45) Nepomniachtchi,I (2775)-Wojtaszek,R (2737) Dortmund 2019}) 10. Be3 g5 (10... Nc6 $11) 11. O-O-O $16 Nc6 12. f4 gxf4 {Strongly threatening ...Ne5.} 13. Nxc6 ({Much worse is} 13. Bxf4 Nxd4 14. Qxd4 e5 $15) 13... Bxc6 14. Bxf4 Qc7 15. Qg3 {[%cal Rf4d6]} O-O-O 16. e5 {[%cal Re5d6]} Ne8 17. Bxc6 Qxc6 18. Rhf1 dxe5 19. Bxe5 f6 20. Bf4 (20. Bd4 $16) 20... h5 21. g5 fxg5 22. Bxg5 $40 {[%mdl 128] Black needs to defend precisely.} Bxg5+ (22... h4 $14 23. Rxd8+ Bxd8) 23. Qxg5 {[%csl Gd1][%cal Rg5d8]} Nd6 24. Rfe1 Nc4 25. b3 Nd2 (25... Nb6 $16 {was worth a try.}) 26. Qe3 ({Better is} 26. Re3 $18 Nf3 27. Qf6) 26... Nf3 27. Rf1 Rxd1+ 28. Rxd1 {Hoping for Ne4.} e5 29. Rf1 Rf8 30. Kb2 (30. Ne4 $142 $1 {[%cal Re4d2]} Rf4 31. Rxf3 Rxe4 32. Rf8+ Kc7 33. Qd2) 30... h4 $2 {[%mdl 8192]} (30... Kb8 $16) 31. Qd3 $2 (31. Ne4) 31... Kb8 $18 32. Nd5 $1 Rd8 {[#]} 33. Nb4 $1 {[%mdl 512]} Qb6 {[#]} 34. Nxa6+ $1 {[%mdl 512]} Ka8 $2 (34... Ka7 35. Qxf3 Qd4+ 36. Qc3 Qxc3+ 37. Kxc3 Kxa6 38. Rf6+ b6) (34... Qxa6 35. Qxd8+) 35. Qxf3 Qxa6 {[%mdl 4096] Endgame KQR-KQR} 36. Re1 Qe6 37. Re4 Re8 $2 (37... Qh6 38. Qc3 Qf6 39. Rxe5 Kb8) 38. Qe3 Kb8 39. Ra4 b6 (39... Qd5 $142 40. Qa7+ Kc7 41. Rc4+ Kd7) 40. Rxh4 (40. Qe4 $142 Rc8 41. Ra8+ Kc7 42. Ra7+ Kd6 43. Rb7) 40... e4 {intending ...Qf6+.} 41. Rh6 Qe5+ 42. Kb1 Re6 43. Rxe6 Qxe6 {KQ-KQ} 44. h4 Kb7 45. h5 Qf5 46. h6 Qf1+ 47. Kb2 Qf6+ 48. Kc1 Qf5 (48... Qf1+ $142 49. Kd2 Qg2+ 50. Kc3 Qg4) 49. Qg3 Ka6 50. Qg7 (50. Qh4 $142 Qe5 51. h7 Qa1+ 52. Kd2 Qd4+ 53. Ke2) 50... e3 51. h7 e2 52. h8=Q {Threatening mate with Qa8+.} (52. Kd2 {is a self mate.} Qf2 53. Kc3 e1=Q+ 54. Kb2 Qfd2 $1 {[%mdl 512]} 55. a4 Qec1+ 56. Ka2 Qdxc2+ 57. Qb2 Q2xb2#) 52... e1=Q+ 53. Kb2 Qxc2+ $2 (53... Qee4 $18 54. Qc7 Qef3) 54. Kxc2 $11 {White threatens Qa8+ and mate.} Qe2+ $2 {[%mdl 8192]} (54... Qf2+ $11 55. Kc3 Qe3+ 56. Kc4 Qc5+ 57. Kd3 Qf5+ 58. Ke3 Qc5+ 59. Kd3 Qd5+ 60. Qd4 Qf3+ 61. Kc4 Qc6+ 62. Kb4 Qb5+ 63. Ka3 Qc6) 55. Kc3 $1 Qe3+ {[#]} 56. Kc4 $1 {[%cal Rh8a8]} Qe2+ 57. Kd5 Qb5+ 58. Kd4 {[%cal Rh8a8]} Qc5+ 59. Kd3 Qf5+ 60. Kc3 Qc5+ 61. Kb2 Qf2+ 62. Ka3 Qc5+ {[#]} 63. Kb2 $2 (63. b4 $1 {mates} Qc1+ 64. Qb2 Qe3+ 65. Qbc3 Qxc3+ 66. Qxc3 b5 67. Qc6+ Ka7 68. Qxb5) 63... Qf2+ 64. Kc3 {White wants to mate with Qa8+.} Qe3+ 65. Kc4 {[%cal Rh8a8]} Qe2+ 66. Kd5 Qb5+ $1 67. Kd4 {[%cal Rh8a8]} Qc5+ 68. Kd3 Qf5+ $1 69. Ke3 {White mates.} Qc5+ 70. Qd4 Qc1+ 71. Qd2 Qg1+ 72. Kd3 Qb1+ 73. Qc2 Qf1+ 74. Qe2 {Accuracy: White = 75%, Black = 53%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.4"]
[White "Praggnanandhaa R"]
[Black "Artemiev, Vladislav"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2602"]
[BlackElo "2728"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,107,28,22,34,10,27,36,30,29,52,43,51,47,42,42,43,52,51,45,51,39,45,0,0,0,0,0,0,0,0,0,0,-35,-48,-41,0,-69,-33,-54,-8,-8,-8,0,0,0,0,0,0,-8,-8,-10,-14,-13,-10,-10,-14,-14,-14,-28,-31,-40,-8,-8,-8,-9,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e6 7. g4 h6 {7...Be7 is a critical line.} 8. Bg2 Be7 {B81: Sicilian Scheveningen: Keres Attack.} 9. b3 Nc6 10. Nxc6 bxc6 {White is slightly better.} 11. e5 dxe5 12. Qxd8+ $1 Kxd8 13. Bxc6 Rb8 14. Bb2 Kc7 15. Bg2 Bb7 {[#]} 16. Bxb7 $146 ({Predecessor:} 16. O-O Rhd8 17. Na4 Nd7 18. Rfe1 Bxg2 19. Kxg2 f6 20. Rad1 Nb6 21. Nxb6 Kxb6 22. Kf3 {½-½ (35) Volokitin,A (2623)-Brkic,A (2573) Austria 2018}) 16... Kxb7 17. O-O-O Rbd8 18. Ne2 Ne4 $36 {[%mdl 2048] Black has the initiative.} 19. Bxe5 Nxf2 20. Rxd8 Rxd8 21. Rf1 f6 (21... Bg5+ {is interesting.} 22. Kb2 Nd1+ 23. Ka3 f6 24. Bd4 Ne3) 22. Rxf2 {Black must now prevent Bb2.} fxe5 $11 {[%mdl 4096] Endgame KRB-KRN} 23. Rf7 (23. Kb2 {feels hotter.} Kc6 24. Rf3 Rd1 25. Rc3+ Kb6 26. Ng3) 23... Rd7 24. Kb1 e4 $1 25. b4 ({White should try} 25. Rxg7 $11 Kc8 26. Rf7) 25... Kc6 $15 26. Rf4 Rd1+ (26... Bf6 $5 {[%cal Rd7d1]} 27. c4 e3 $15) 27. Kb2 Bf6+ 28. Ka3 $1 Rh1 29. Rxe4 Rxh3+ 30. Ka4 $1 e5 31. c4 Rf3 32. b5+ Kb6 33. c5+ $1 Kxc5 34. bxa6 Kb6 35. Kb4 Kxa6 36. Nc3 Kb6 37. a4 Be7+ 38. Kc4 {The position is equal.} Kc6 39. a5 Rf4 40. Rxf4 exf4 $11 {KB-KN} 41. Nd5 Bd6 42. a6 $1 {[%cal Ra6a7]} f3 {Strongly threatening ...Bc5.} 43. a7 Kb7 44. Kd3 Bc5 {[#]} 45. a8=Q+ $1 {[%mdl 576] Decoy} Kxa8 46. Nc7+ Kb7 (46... Ka7 $5 47. Ne6 $8 Bg1 $11) 47. Ne6 Kc6 (47... f2 $5 48. Ke2 $8 Be7 $11) 48. Nxg7 Kd5 {Hoping for ...Ke5.} (48... f2 $5 49. Ke2 $8 Bf8 $11) 49. Nf5 Ke5 50. Nxh6 Kf4 {Threatens to win with ...Kg3.} (50... f2 $5 51. Ke2 $8 Kf4 $11) 51. Nf7 Be7 {[#] ...Kg3 is the strong threat.} 52. Ne5 $1 {[%mdl 512]} f2 (52... Kxe5 $5 53. Ke3 $8 Bh4 54. Kxf3 Bg5 $11) 53. Ke2 Kxe5 54. Kxf2 {Accuracy: White = 93%, Black = 94%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.5"]
[White "Sjugirov, Sanan"]
[Black "Basso, Pier Luigi"]
[Result "*"]
[ECO "D44"]
[WhiteElo "2674"]
[BlackElo "2600"]
[Annotator "TA"]
[PlyCount "46"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,46,21,57,33,57,56,42,39,36,66,50,62,56,-52,-36,-58,-42,-41,41]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 hxg5 10. Bxg5 Be7 11. exf6 Bxf6 12. Bxf6 Qxf6 13. g3 Na6 14. Bg2 Bb7 15. Ne4 Qe7 16. O-O {D44: Semi-Slav: Botvinnik System.} O-O-O 17. h4 c5 18. a4 {White is slightly better.} Rxd4 19. Qe2 b4 $1 20. Rad1 {[%mdl 1024] Black must now prevent Rxd4. White has compensation.} Qc7 21. Rc1 {[#]} ({White should try} 21. Ng5 $14) 21... Qc6 $146 {[%cal Rd4e4] Black is slightly better.} ({Predecessor:} 21... Bd5 22. Nf6 Bxg2 23. Kxg2 e5 24. Ng4 Qb7+ 25. Kh2 f5 26. Qxe5 Qh7 27. Qf6 Rxg4 28. Qxa6+ {1-0 (41) Matlakov,M (2701)-Sandipan,C (2573) Moscow 2017}) 22. f3 $1 Nc7 ({Reject} 22... Qxa4 $6 23. Rxc4 Qc6 24. Rfc1 $11) 23. Rfd1 Qd5 {Accuracy: White = 77%, Black = 89%.} (23... Rhd8 $15 24. Rxd4 Rxd4) *

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.6"]
[White "Sanal, Vahap"]
[Black "Sarana, Alexey"]
[Result "1/2-1/2"]
[ECO "A28"]
[WhiteElo "2569"]
[BlackElo "2656"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,92,0,18,16,17,20,31,0,19,0,0,14,7,0,12,11,23,4,13,0,0,0,15,10,10,8,15,0,0,0,4,0,16,10,7,10,16,-20,12,10,9,-12,0,0,0,0,-6,-6,-6,-6,-6,-6,-6,-6,-8,-53,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. a3 g6 5. g3 Bg7 6. Bg2 O-O 7. O-O Re8 8. d3 d6 9. Nd2 a5 10. Rb1 Ne7 {Recently 10...Nd4 got a lot of attention.} 11. b4 {A26: English Opening vs King's Indian with ...Nc6 and d3.} axb4 12. axb4 c6 13. b5 {White is slightly better.} Be6 14. Bb2 d5 15. bxc6 bxc6 16. Qc2 {[#]} h6 $146 ({Predecessor:} 16... Nf5 17. Rfc1 Bh6 18. cxd5 cxd5 19. Qd1 Ng4 20. e3 Nfxe3 21. fxe3 Bxe3+ 22. Kf1 Nxh2+ {0-1 (28) Zarkua,D (2466)-Lomineishvili,M (2360) Poti 2012}) 17. Rfc1 Nf5 18. Qd1 Nd6 19. Na4 Nd7 20. Ba3 Nf5 {[#] Strongly threatening ...Qa5.} 21. Bb4 Rb8 22. Nc3 {[%cal Rc4d5]} Nf6 23. Qa4 Ra8 24. Qd1 Rb8 25. Na4 Nd7 26. Nc5 Nxc5 27. Bxc5 Qd7 28. Nb3 Rec8 29. Na5 Ra8 30. Bb6 Bf8 31. Qe1 Ra6 32. cxd5 cxd5 {[#] Threatens to win with ...Rb8.} 33. Rxc8 Qxc8 34. e4 dxe4 35. Bxe4 {aiming for Bb7.} Nd6 36. Bg2 Bf5 37. Rc1 Qe6 (37... Qe8 $1 $15 38. Be3 Bxd3) 38. Bc5 $11 {The position is equal.} Bxd3 39. Nc6 Be4 40. Bxe4 Nxe4 41. Bxf8 Rxc6 42. Bxh6 g5 43. Rxc6 Qxc6 44. f3 Qb6+ 45. Kf1 Qa6+ 46. Kg1 Qb6+ {A rather calm draw. Accuracy: White = 91%, Black = 93%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.7"]
[White "Adhiban, B.."]
[Black "Can, Emre"]
[Result "1-0"]
[ECO "B89"]
[WhiteElo "2654"]
[BlackElo "2600"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,83,8,21,0,0,-3,8,0,9,12,10,0,6,15,0,-18,0,-19,0,0,51,56,62,67,105,104,88,87,89,81,164,167,166,102,110,114,110,59,51,60,151,145,219,222,222,222,251,245,243,242,230,189,193,116,394,237,432,432,423,423,1135,1129,1043,1029]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 a6 8. Qe2 Be7 9. O-O-O Nxd4 10. Bxd4 b5 11. Bb3 O-O 12. e5 {B89: Sicilian: Velimirovic Attack.} dxe5 13. Bxe5 Qb6 14. Ne4 $1 {[%cal Re4f6] The position is equal.} Nxe4 15. Qxe4 Bg5+ 16. Kb1 Bb7 17. Qg4 Bh6 $1 {[#]} 18. Rd7 $146 ({Predecessor:} 18. Qg3 Rac8 19. Rd4 Kh8 20. Rhd1 a5 21. Rh4 f6 22. Rxh6 Rcd8 23. Rd6 gxh6 24. Qf4 Rxd6 25. Bxd6 {0-1 (39) Tiba,V (2192)-Ovsejevitsch,S (2561) Koszalin 2012}) 18... Qc6 19. Bxe6 {aiming for Bd5.} Bc8 20. Rd6 $1 $40 {[%cal Rd6c6][%mdl 128] White has some attack.} Qc5 (20... Bxe6 $11 21. Qxe6 Qxg2) 21. Bxc8 $14 Raxc8 22. Qe4 $1 f6 23. Bg3 f5 24. Qd3 f4 25. Bh4 {Strongly threatening Be7.} Qh5 (25... f3 $16) 26. Be7 $18 Rfe8 27. Rd7 (27. Re1 $1 $18) 27... Qe5 $16 28. Bb4 Qe2 29. Qxe2 ({White should try} 29. Qd5+ $16 Kh8 30. Bc5) 29... Rxe2 $14 30. Rd2 $1 {[%cal Rd2e2]} Re4 ({Black should play} 30... Rce8 $14) 31. f3 $1 $16 {[%cal Rf3e4]} Rxb4 {[#]} (31... Re3 $16 {was called for.} 32. h4 g6) 32. b3 $1 $18 Bg5 33. a3 a5 34. axb4 axb4 {[%mdl 4096] Endgame KRR-KRB} 35. Rd6 Bf6 {If only Black now had time for ...Ra8....} 36. Rhd1 Kf7 37. R1d4 ({Better is} 37. Rd7+ $18 Kg6 38. Ra7) 37... Be5 $2 {[%mdl 8192] Loses the game.} (37... Bxd4 $16 38. Rxd4 g5) 38. Rd7+ Ke6 $2 {[#]} (38... Ke8 {is a better defense.} 39. R4d5 {[%mdl 64] Double Attack} Ra8 40. Rxe5+ Kxd7 41. Rxb5 Kc6 42. Rxb4 Rf8 43. Rc4+ Kb6) 39. Rd8 $1 {White is clearly winning.} Rc6 40. Re4 {Threatens to win with Re8+.} Kf6 (40... Rc5 $142 41. Rxb4 h6) 41. Rf8+ Ke7 42. Rf5 {Accuracy: White = 73%, Black = 53%.} ({Weaker is} 42. Rxe5+ Kxf8 43. Rxb5 Ke7 $18) 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.8"]
[White "Cordova, Emilio"]
[Black "Riazantsev, Alexander"]
[Result "0-1"]
[ECO "E06"]
[WhiteElo "2593"]
[BlackElo "2639"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,53,0,0,0,0,0,49,45,35,17,47,0,0,0,-14,-145,-150,-117,-118,-175,-143,-167,-168,-168,-170,-277,-279,-489,-484,-495,-487,-478,-482,-448,-277,-422,-407,-419,-419,-837,-837,-778]} 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 b5 8. a4 {E05: Open Catalan: 5 Nf3 Be7.} b4 9. Nfd2 Nd5 10. Nxc4 {White is slightly better.} c5 11. dxc5 Ba6 12. Rd1 Nd7 $1 13. b3 {e4 is the strong threat.} Rc8 {[#]} 14. Bb2 $146 (14. e4 $1 $11 N5f6 15. e5) ({Predecessor:} 14. e4 N5f6 15. e5 Nd5 16. Bb2 Nxc5 17. Nbd2 Qc7 18. Rac1 Rfd8 19. Bf1 Qb8 20. Bd4 {1-0 (33) Tsolakidou,S (2431)-Solozhenkina,E (2283) New Delhi 2019}) 14... Nxc5 $17 15. Nbd2 Bf6 16. Ne4 (16. Bxf6 $17 Qxf6 17. Nd6) 16... Bxb2 $1 $19 17. Nxc5 Bxa1 18. Nxa6 {[#]} Qf6 $1 19. a5 (19. Rd3 $142) 19... Bd4 20. e4 $2 {[#]} (20. Rf1) 20... Rxc4 $1 {[%mdl 512]} 21. bxc4 {[#]} b3 $1 {[%cal Rb3c2]} 22. Qd2 Nc3 23. Rf1 e5 24. Nc5 (24. Nb4 {was worth a try.}) 24... b2 ({Don't do} 24... Bxc5 25. Qxc3 Rb8 26. Qd2 $19) 25. Qxb2 {[#] aiming for Nd7.} Na4 $1 {[%cal Ra4b2][%mdl 576] Discovered Attack} 26. Qxd4 (26. Nd7 $142 Nxb2 27. Nxf6+ gxf6 28. Ra1) (26. Nxa4 Bxb2) 26... exd4 27. Nxa4 {Accuracy: White = 38%, Black = 83%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.9"]
[White "Narayanan.S.L"]
[Black "Puranik, Abhimanyu"]
[Result "1/2-1/2"]
[ECO "C92"]
[WhiteElo "2637"]
[BlackElo "2597"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,64,17,16,21,30,17,35,27,23,27,25,33,31,27,36,35,30,38,0,3,0,0,0,0,0,0,0,0,0,0,0,-12,-35,-29,-19,-18,-37,-21,-33,0,-112,-20,-125,4,-68,-47]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Bb7 10. d4 Nd7 11. Nbd2 exd4 {C92: Closed Ruy Lopez: 9...Be6, Karpov and Flohr-Zaitsev Variations.} 12. cxd4 Bf6 13. Nf1 Na5 {White is slightly better.} 14. Bc2 Re8 15. Ng3 g6 $1 16. Rb1 c5 17. d5 Nc4 18. b3 Ncb6 {[#]} 19. Be3 $146 ({Predecessor:} 19. Nh2 h5 20. Ngf1 a5 21. g4 hxg4 22. hxg4 b4 23. Nf3 a4 24. g5 Bg7 25. bxa4 {1-0 (46) Vachier Lagrave,M (2789)-Borisek,J (2576) chess.com INT 2018}) 19... b4 20. Nh2 a5 21. Ng4 Bg7 22. Nh6+ Kf8 23. Nhf5 gxf5 24. Nxf5 Re5 {White must now prevent ...Rxf5!} 25. Nxd6 {[#] f4 is the strong threat.} ({Reject} 25. Nxg7 Kxg7 26. Bf4 Qf6 $17) 25... Bxd5 $1 26. f4 Re6 27. Nxf7 $1 Kxf7 28. exd5 Rd6 $1 29. Bxh7 Nxd5 {White should prevent ...N7f6.} 30. Qd3 (30. Bf2 $11 {remains equal.}) 30... Qf6 (30... Bc3 $17 31. Be4 Nxe3 32. Qxd6 Nf6 {[%mdl 64] Discovered Attack}) 31. Rbd1 (31. Bf2 $1 $11 {was the only way to keep the balance.}) 31... Bf8 ({Better is} 31... Re8 $17 32. Kh1 Bf8) 32. Be4 (32. Bf2 $11 N7b6 33. Rc1 Nxf4 34. Qg3) 32... Nxe3 {Accuracy: White = 71%, Black = 81%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.10"]
[White "Vaibhav, Suri"]
[Black "Aravindh, Chithambaram VR."]
[Result "1/2-1/2"]
[ECO "B47"]
[WhiteElo "2591"]
[BlackElo "2630"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,62,31,27,20,31,30,33,25,35,19,27,17,12,16,11,0,0,0,0,0,0,0,0,0,0,-11,0,-87,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. g3 a6 7. Bg2 Nf6 8. O-O Nxd4 9. Qxd4 Bc5 10. Bf4 d6 11. Qd2 h6 12. Rad1 e5 13. Be3 Ke7 14. Bxc5 Qxc5 15. Na4 {B47: Sicilian: Taimanov: 5 Nc3 Qc7 6 f4, 6 g3 and 6 Be2.} Qc7 16. f4 {aiming for fxe5.} Rd8 17. fxe5 {White is slightly better.} dxe5 18. Qb4+ Ke8 $1 19. Nb6 {[#]} Rxd1 $146 ({Predecessor:} 19... Rb8 20. Nd5 Nxd5 21. exd5 Rd6 22. Qe4 Qe7 23. Rde1 f6 24. c4 Rd8 25. b4 b6 26. a3 Bb7 27. Qh7 a5 28. Bh3 Qf8 29. Rxe5+ fxe5 30. Qg6+ {1-0 (30) Hernandez Guerrero,G (2538)-Hernandez Guerrero,Y (2250) Merida 2003}) 20. Rxd1 Rb8 $1 21. Nd5 Nxd5 22. exd5 b5 23. d6 Qxc2 {[#]} 24. d7+ $1 {[%mdl 576] Decoy} Bxd7 25. Qd6 {[%mdl 64] Double Attack} Rd8 26. Bb7 Qe2 27. b4 (27. Bc6 $11 Qg4 28. Rd5 (28. Qxe5+ Qe6 $11)) 27... e4 ({Better is} 27... Qe3+ $17 28. Kh1 Qe2) 28. Qe5+ $11 {[#]The position is equal.} Kf8 $1 {[#]} 29. Rxd7 $1 {[%cal Rd7d8][%mdl 512]} Qe3+ (29... Rxd7 $5 30. Qb8+ $8 Ke7 31. Qe5+ {[%mdl 64] [#] Double Attack} Kf8 $1 {[%mdl 512]} 32. Qb8+ Ke7 33. Qe5+ {[%mdl 64] Double Attack} Kf8 $1 $11 {[%mdl 512]}) 30. Kg2 {[%cal Rd7d8]} Qf3+ (30... Rxd7 $5 31. Qb8+ $8 Ke7 32. Qe5+ {[%mdl 64] Double Attack} Kd8 33. Qb8+ Ke7 34. Qe5+ {[%mdl 64] Double Attack} Kd8 35. Qb8+ Ke7 $11) 31. Kg1 {[%cal Rd7d8]} Qe3+ {Accuracy: White = 94%, Black = 93%.} (31... Rxd7 $5 32. Qb8+ $8 Ke7 33. Qe5+ {[%mdl 64] Double Attack} Kf8 34. Qb8+ Ke7 35. Qe5+ {[%mdl 64] Double Attack} Kf8 $11) 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.11"]
[White "Martirosyan, Haik M."]
[Black "Sargsyan, Shant"]
[Result "1/2-1/2"]
[ECO "B62"]
[WhiteElo "2630"]
[BlackElo "2594"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,70,42,55,42,0,9,0,0,0,0,0,20,0,20,0,71,79,77,85,79,58,91,68,56,64,72,20,29,34,30,42,33,18,34,39,70,60,63,15,54,8,8,8,8,8,8,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd3 a6 8. O-O-O {8.Nxc6 is the hot move.} Bd7 {B62: Sicilian: Richter-Rauzer: 6...e6: Unusual White 7th moves.} 9. Qg3 h6 10. Be3 Nxd4 11. Bxd4 e5 12. Be3 {[#]} Rc8 $146 {Threatening ...Rxc3!} (12... Nh5 $5 13. Qf3 $8 Nf6 $11) ({Predecessor:} 12... Be6 13. f4 Nh5 14. Qf3 Nxf4 15. g3 Ng6 16. Nd5 Rc8 17. Kb1 Ne7 18. Bd3 Ng8 {0-1 (58) Quirhuayo Chumbe,G (2397)-Salinas Herrera,P (2411) Badalona 2017}) 13. Bd3 Be6 (13... Nh5 $5 14. Qf3 $8 Nf6 $11) 14. Nd5 Qa5 (14... Nxd5 $11 15. exd5 Bxd5) 15. Nxf6+ $16 gxf6 16. a3 h5 17. Kb1 Bh6 18. Bxh6 Rxh6 19. Qe3 Rh8 20. Rhf1 ({White should play} 20. Qa7 $16) 20... Qc5 21. Qd2 Ke7 22. f4 h4 23. h3 Rcg8 24. Rf3 Rg3 25. Rxg3 hxg3 26. f5 Bd7 27. Re1 Bc6 {The position is equal.} 28. Qe3 Qxe3 29. Rxe3 $11 {[%mdl 4096] Endgame KRB-KRB} Rh4 30. Kc1 Rf4 31. Kd2 Rf2+ 32. Re2 {And now Rxf2 would win.} Rf1 33. Re3 Rf2+ 34. Re2 {Hoping for Rxf2.} Rf1 35. Re3 Rf2+ {Accuracy: White = 83%, Black = 90%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.12"]
[White "Visakh N R"]
[Black "Deac, Bogdan-Daniel"]
[Result "1/2-1/2"]
[ECO "E42"]
[WhiteElo "2518"]
[BlackElo "2626"]
[Annotator "TA"]
[PlyCount "35"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,35,15,14,0,19,0,0,-3,0,0,0,-44,-22,-33,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nge2 cxd4 6. exd4 d5 7. a3 Be7 8. Nf4 O-O 9. Be3 {E42: Nimzo-Indian: Rubinstein: 4...c5 5 Ne2.} Nc6 {[#]} 10. Rc1 $146 {[%cal Ba1c1,Bc1c4,Bc4d4][%mdl 32]} ({Predecessor:} 10. cxd5 Nxd5 11. Ncxd5 exd5 12. Bd3 Bf6 13. O-O g6 14. Rc1 {½-½ (14) Babula,V (2563)-Movsesian,S (2718) Czechia 2009}) 10... dxc4 11. Bxc4 e5 12. dxe5 Nxe5 13. Ncd5 (13. Qb3 {is more complex.} Bd7 14. Rd1 Nxc4 15. Qxc4 Rc8 16. Qb3) 13... Nxc4 14. Rxc4 Nxd5 15. Nxd5 {The position is equal.} Be6 16. Nxe7+ Qxe7 17. Rd4 Rfd8 {Hoping for ...Bc4!} 18. O-O 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.13"]
[White "Durarbayli, Vasif"]
[Black "Petrosyan, Manuel"]
[Result "0-1"]
[ECO "C65"]
[WhiteElo "2625"]
[BlackElo "2590"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,98,4,14,12,10,8,22,21,18,16,26,21,29,-32,15,16,39,18,27,29,31,-23,0,0,0,-77,-20,-20,-21,-28,-26,-8,-11,-51,-54,-36,-51,-80,-40,-48,-52,-151,-139,-131,-137,-204,-189,-208,-199,-183,-165,-151,-179,-254,-251,-241,-82,-254,-272,-267,-270,-266,-259,-256,-263,-242,-231,-377,-362,-456,-471,-518,-520,-485,-416,-682,-719,-827,-823,-771,-773,-1045,-1045,-961,-908,-1033,-1020,-991,-993,-993,-985]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. c3 O-O 6. O-O {C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5.} Re8 7. Nbd2 a6 8. Bxc6 {The position is equal.} dxc6 9. Nc4 Nd7 10. b4 Bf8 {[#]} 11. Qb3 $146 (11. Qc2 $11) ({Predecessor:} 11. a4 b5 12. Na5 Qf6 13. Be3 Nb6 14. axb5 cxb5 15. Qc2 Bg4 16. Nd2 Qg6 17. f3 {1-0 (58) Caruana,F (2816)-Nakamura,H (2769) Leuven 2018}) 11... Qf6 12. Be3 Rb8 13. Ne1 b5 14. Na5 c5 15. f4 ({White should try} 15. Nf3 $14) 15... cxb4 16. fxe5 Qg6 17. d4 (17. cxb4 $11 Nxe5 18. Nf3) 17... c5 (17... bxc3 $17 {...b4 is the strong threat.} 18. Qxc3 c5) 18. cxb4 $1 $11 c4 19. Qb1 f6 20. Nf3 $1 fxe5 21. d5 Nf6 $1 22. Nc6 Rb7 23. Nfxe5 Qxe4 24. Qxe4 Nxe4 25. Rad1 {[#]} ({White should play} 25. Rfe1 $1 $15) 25... Nc3 $1 $17 {[%cal Rc3d1]} 26. Rd2 {White wants to play d6.} Bd6 27. Bf4 {[#]} (27. Bc5 $17) 27... g5 $1 $36 {[%cal Rg5f4][%mdl 2560] Black is in control.} 28. Bg3 (28. Bxg5 Bxe5) 28... Ne4 29. Re2 Nxg3 30. hxg3 Rc7 31. Nxc4 (31. Rff2 {keeps fighting.}) 31... Rxe2 32. Nxd6 Bb7 $2 (32... Bg4 $19 {is more deadly. And now ...Rd7 would win.} 33. Rf2 Re1+ 34. Rf1 Re3) 33. Nxb7 $2 {This move loses the game for White.} (33. Nd4 $17 {was the only defense.} Rxa2 34. Ne6 Rxg2+ {[%mdl 64] Decoy} 35. Kxg2 Bxd5+ {[%mdl 64] Double Attack} 36. Ne4 Bxe6 37. Nxg5) 33... Rxb7 $17 {[%mdl 4096] Endgame KRR-KRN} 34. d6 Rd7 ({Not} 34... Rxa2 35. Rd1 $15) 35. Ne7+ Kg7 36. Nf5+ Kg6 37. Ne7+ Kh5 38. Rf6 (38. Rd1 $142) 38... Rd2 $19 39. Nf5 {Black must now prevent Rh6+.} g4 40. a3 Kg5 41. Rf8 Rd5 42. Nh4 (42. Ne3 $142 R5xd6 43. Rg8+ Rg6 44. Rc8) 42... R7xd6 {Strongly threatening ...Rf6.Black is clearly winning.} 43. Rg8+ Kh5 44. Rf8 Re5 45. Rf7 Rd1+ 46. Kf2 h6 47. Rc7 Rde1 {[%csl Ge1][%cal Re5e2]} 48. Rc2 Kg5 49. Rd2 Rh1 {Accuracy: White = 52%, Black = 88%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.14"]
[White "Sychev, Klementy"]
[Black "Zvjaginsev, Vadim"]
[Result "1/2-1/2"]
[ECO "C65"]
[WhiteElo "2563"]
[BlackElo "2623"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,50,30,39,42,39,41,40,24,39,29,38,31,35,0,0,12,10,12,11,-1,-8,-56,-60,-50,-52,-64,-61,-70,-60,-70,-31,-47,-39,-41,-30,-43,-29]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. O-O a6 6. Bxc6+ bxc6 7. d4 exd4 8. Nxd4 $1 {8.Nxd4 is better than 8.Qxd4.} c5 9. Nc6 {C79: Ruy Lopez: Steinitz-type lines with 3...a6 4 Ba4 Nf6 5 0-0 d6.} Qd7 10. Na5 $1 Qa4 11. Bd2 {White is slightly better.} Be7 12. Re1 Bg4 13. f3 Be6 $1 14. c4 (14. Qe2 {is more complex.} O-O 15. c4 Rae8 16. f4 Bc8 17. Qf3) 14... Qxd1 15. Rxd1 Nd7 {[#]} 16. Nc3 $146 ({Predecessor:} 16. f4 f5 17. Nc3 Bf6 18. exf5 Bxf5 19. Re1+ Kf8 20. Nd5 Bxb2 21. Rad1 Bc2 22. Nxc7 {½-½ (65) Colucci,P (2305)-Weber Widmer,D (2299) ICCF email 2009}) 16... Bf6 17. Nd5 Bxd5 18. cxd5 Bxb2 19. Rab1 Bd4+ 20. Kf1 {[#]} f5 $1 {[%mdl 512]} 21. Nc6 (21. exf5 Nf6) 21... fxe4 22. Ba5 Nf6 23. Nxd4 cxd4 24. fxe4 O-O {...Nxd5+ is the strong threat.} 25. Kg1 Rae8 {Black took control after the opening. Accuracy: White = 92%, Black = 91%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.15"]
[White "Jobava, Baadur"]
[Black "Aleksandrov, Aleksej"]
[Result "0-1"]
[ECO "C59"]
[WhiteElo "2620"]
[BlackElo "2592"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,58,-12,-12,7,-11,6,-13,0,0,0,-61,-17,-16,-30,-32,-30,-64,-69,-71,-67,-68,-70,-91,-107,-97,-60,-60,-43,-54,-53,-116,-116,-116,-118,-143,-146,-570,-521,-1195,-1164,-29992,-29993]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6 9. Nh3 {is recently more successful than 9.Nf3. Played by Levon Aronian in November 2019.} Bd6 10. d3 Rb8 {C59: Two Knights: 4 Ng5 d5 5 exd5 Na5 5 Bb5+ c6 6 dxc6 bxc6 7 Be2.} 11. Nd2 O-O 12. Ne4 Nxe4 {The position is equal.} 13. dxe4 {[#]} Nb7 $146 ({Predecessor:} 13... f5 14. exf5 Bxf5 15. Bg4 Bxg4 16. Qxg4 Rb4 17. Qe2 Qh4 18. a3 Rg4 19. Kf1 Nc4 20. b3 Re4 {0-1 (20) Letzelter,J-Limbos,P Paris 1972}) 14. c3 (14. O-O $11) 14... Qh4 {[%mdl 1024] Black has compensation.} 15. Qd3 Be7 $36 {[%mdl 2048] Black has some pressure.} 16. Qg3 Nc5 17. f3 Qh5 $1 {[#] ...Bh4 is the strong threat.} 18. f4 Qh4 19. Nf2 exf4 20. Qxh4 Bxh4 21. O-O Bxf2+ 22. Rxf2 g5 $1 23. Bf3 Re8 24. Rd2 (24. g3 $15) 24... Nxe4 $17 25. Bxe4 Rxe4 26. Rd8+ Kh7 {Threatens to win with ...Ba6!} 27. g3 $2 {[%mdl 8192]} (27. c4 $17 {is a better chance.}) 27... f3 $19 {[#] Strongly threatening ...Re2.} 28. Rd2 Bh3 {( -> ...Rbe8)} 29. Kf2 g4 {Accuracy: White = 40%, Black = 89%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.16"]
[White "Smirin, Ilia"]
[Black "Nesterov, Arseniy"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "2615"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,78,12,29,5,12,6,17,12,17,0,15,12,16,0,0,-2,0,0,0,0,13,0,14,0,4,0,0,0,0,0,89,85,97,77,91,68,82,81,80,56,57,67,105,103,114,87,522,493,785,664,831,820,1120,811,1127,1114,1240,1177,1226,1142,1185,1062,29971,29966,6809,5809,1666]} 1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nf3 Bc5 5. O-O d6 6. c3 a5 7. a4 O-O 8. Nbd2 {is the new trend. C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} Be6 9. Bxe6 fxe6 10. Nc4 {The position is equal.} Qd7 {[#]} 11. Qe2 $146 ({Predecessor:} 11. d4 exd4 12. cxd4 Bb4 13. Qd3 Rae8 14. Bd2 Bxd2 15. Ncxd2 Nh5 16. Qb5 Nf4 17. g3 {1-0 (33) Sebastian,D (2447)-Pfreundt,J (2399) Lueneburg 2018}) 11... Rae8 (11... Qe8 {keeps more tension.} 12. Bd2 Qg6 13. h3 h6 14. Kh2 Qh5) 12. Be3 Bxe3 13. Nxe3 Qf7 14. Nd2 Qg6 15. g3 d5 16. Ng2 Qh6 17. Rad1 Rd8 18. f4 Qh5 19. Qxh5 Nxh5 20. fxe5 Nxe5 21. d4 $36 {[%mdl 2048] White has good play.} Nc6 (21... Nd3 $11) 22. e5 {[#] Black must now prevent g4.} Rxf1+ 23. Nxf1 {Hoping for g4.} (23. Rxf1 {feels hotter.} g6 24. g4 Ng7 25. Nf4 Nb8 26. Nf3) 23... Rf8 24. Nfe3 Nd8 25. Ne1 g6 26. Ng4 Kg7 27. Kg2 Nf7 28. Nd3 b6 29. h4 Nxe5 $2 {[%mdl 8192] [#] This costs Black the game.} (29... Nd8 $16 {is more resistant.}) 30. Ngxe5 Kh6 (30... Nf6 $142 31. Nf4 Re8) 31. b4 axb4 32. cxb4 Ng7 33. g4 g5 34. Rf1 Rxf1 35. Kxf1 Ne8 36. a5 bxa5 37. bxa5 c6 38. a6 Nc7 39. a7 Na8 {Accuracy: White = 93%, Black = 57%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.17"]
[White "Kobalia, Mikhail"]
[Black "Suleymanli, Aydin"]
[Result "1/2-1/2"]
[ECO "B14"]
[WhiteElo "2609"]
[BlackElo "2474"]
[Annotator "TA"]
[PlyCount "116"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,116,55,15,33,23,46,12,19,2,13,-17,2,16,27,20,22,19,27,28,24,23,25,17,23,24,29,26,56,58,58,53,76,81,94,89,93,94,91,84,86,84,85,89,95,81,90,90,89,61,62,25,23,18,17,17,59,59,59,37,48,33,32,38,32,29,30,30,34,34,66,29,33,8,12,8,8,8,8,8,8,8,8,8,8,8,8,8,8,0,0,0,0,0,0]} 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 e6 5. Nc3 Nf6 6. Nf3 Bb4 7. cxd5 Nxd5 8. Bd2 Nc6 9. Bd3 O-O 10. O-O Nf6 11. Bg5 Be7 12. Re1 Nb4 13. Bc4 Bd7 {D42: Queen's Gambit Declined: Semi-Tarrasch: 5 cxd5 Nxd5 6 e3 Nc6 7 Bd3 .} 14. Ne5 {[#]} Be8 $146 ({Predecessor:} 14... Bc6 15. Nxf7 Rxf7 16. Bxe6 Be8 17. a3 Na6 18. Qe2 Nc7 19. Bxf7+ Kxf7 20. d5 Bd6 21. Ne4 {1-0 (31) Hovhannisyan,R (2530)-Anastasian,A (2578) Yerevan 2011}) 15. Rc1 Rc8 16. Qb3 Nc6 17. Nxc6 Rxc6 (17... Bxc6 {with more complications.} 18. Red1 Nd5 19. Bxe7 Nxe7 20. d5 exd5 21. Bxd5 Nxd5 22. Nxd5 Re8) 18. d5 exd5 19. Bxf6 dxc4 20. Bxe7 Qxe7 21. Rxe7 cxb3 22. Rxb7 bxa2 23. Rxa7 Rb6 24. Rxa2 Bd7 25. Nd5 $36 {[%mdl 2048] White is pushing.} Rb5 26. Rd1 {Strongly threatening Ne7+.} Rb7 27. b4 $1 Be6 {[#]} 28. Rb2 $1 Rfb8 29. Nf4 Bf5 30. Rd4 h6 31. h4 g5 32. Ne2 Kg7 33. Ng3 Be6 34. Ne4 Rb5 35. hxg5 hxg5 36. Nc3 Rc5 37. bxc5 Rxb2 $14 {[%mdl 4096] Endgame KRB-KRN} 38. Ne4 Rb1+ 39. Kh2 f6 40. Rd6 Kf7 41. Rd3 Rb4 42. f3 g4 43. Kg3 Ke7 44. Ra3 gxf3 45. gxf3 Bd7 46. Re3 Be6 47. f4 Rb2 48. Nd6 {[#] Hoping for Nf5+.} Kd7 {The position is equal.} 49. Ne8 Rb3 $1 {[%cal Rb3e3]} 50. Nxf6+ Kc6 51. Rxb3 (51. Kf2 {seems wilder.} Rxe3 52. Kxe3 Kxc5 53. Ke4 Kd6 54. Ne8+) 51... Bxb3 $11 {KB-KN} 52. Ne4 {aiming for f5.} Bc2 53. Kf3 Kd5 54. Nf6+ (54. Nd2 {keeps more tension.} Bf5 55. Nb3 Kc4 56. Nc1 Kxc5 57. Ke3) 54... Kxc5 55. Ke3 Kd6 56. Ne4+ Bxe4 57. Kxe4 {Kf5 would kill now.} Ke6 58. f5+ Kf6 {Accuracy: White = 90%, Black = 92%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.18"]
[White "Pranesh M"]
[Black "Svane, Rasmus"]
[Result "1/2-1/2"]
[ECO "C89"]
[WhiteElo "2425"]
[BlackElo "2608"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,66,45,47,39,33,34,36,51,52,60,75,56,48,0,8,-29,-35,-31,-22,-51,-27,-28,0,-11,14,13,6,16,27,25,17,21,58,61,55,73,95,0,14]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d3 Bd6 13. Re1 Qh4 14. g3 Qh3 15. Re4 Nf6 {is cutting edge theory.} 16. Rh4 {C89: Closed Ruy Lopez: Marshall Attack.} Qf5 17. Nd2 Ng4 18. f3 {White is slightly better.} Ne3 19. Qe2 Nd5 $1 20. c4 Nc7 21. d4 Qg6 {[#]} 22. Nf1 $146 ({Predecessor:} 22. Qe4 Be6 23. Qxg6 hxg6 24. c5 Be7 25. Re4 Rfd8 26. Bxe6 Nxe6 27. Nb3 a5 28. a4 Bf6 29. axb5 cxb5 30. Rxa5 Rxa5 31. Nxa5 Bxd4+ 32. Be3 Bxe3+ {½-½ (32) Smeets,J (2593)-Hebden,M (2520) Liverpool 2008}) 22... Re8 23. Re4 Bf5 {[%mdl 1024] Black has compensation.} 24. Re3 Ne6 {...Bf4 is the strong threat.} 25. Qf2 Be7 26. Re1 Bb4 27. Bd2 Bxd2 28. Nxd2 Nf4 29. Rxe8+ Rxe8 30. Re1 {[%cal Re1e8] [#]} Rf8 {Threatens to win with ...Nh3+.} 31. Qe3 Nd3 32. Rb1 $1 Nc5 33. Re1 (33. Ra1 $16 Nd3 34. Rb1) 33... Nd3 {Accuracy: White = 70%, Black = 92%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.19"]
[White "Yilmaz, Mustafa"]
[Black "Sindarov, Javokhir"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2607"]
[BlackElo "2537"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,71,52,50,67,62,76,79,91,70,92,95,121,86,115,97,145,134,125,121,130,135,134,118,167,148,148,150,113,110,124,128,128,138,124,131,126,130,233,226,228,228,252,250,253,228,849,590,563,535,29993,29994,29994,29995,29995,29996]} 1. Nf3 Nf6 2. c4 g6 3. Nc3 c5 4. d4 Bg7 5. e4 d6 6. Be2 O-O 7. O-O Bg4 8. d5 Nbd7 9. h3 Bxf3 10. Bxf3 Ne8 {E91: King's Indian: Classical: 6 Be2, unusual replies including 6...c5 and 6...Bg4.} 11. Bg5 $5 {[%mdl 4] A promising side line.} Nc7 12. Be2 a6 {White is better.} 13. Qd2 Re8 14. a4 Qb8 {[#]} 15. Rae1 $146 ({Predecessor:} 15. Bf4 Qa7 16. Bg3 Rad8 17. f4 e6 18. Bh4 Bd4+ 19. Kh1 f6 20. dxe6 Nxe6 21. Nd5 {1-0 (30) Ageichenko,G (2282)-Gorbatov,A (2369) Moscow 2014}) 15... e6 16. Bf4 Ne5 17. Bg3 $1 exd5 18. cxd5 (18. exd5 f5 $14) 18... b5 19. f4 $1 {[%cal Rf4e5]} Nd7 20. e5 $1 {[%cal Re5d6]} c4 {[%cal Rd6e5]} 21. Ne4 (21. exd6 Qb6+ 22. Bf2 Qxd6 $11) 21... dxe5 {[#]} 22. f5 $1 {Hoping for d6.} Rd8 {Black wants to play ...Ne8.} 23. Kh1 Ne8 {[#]} 24. d6 $1 $36 {[%mdl 2048] Black is under strong pressure.} Ra7 25. fxg6 hxg6 26. Bh4 (26. Qd5 $2 Nb6 $19) 26... f5 27. axb5 fxe4 (27... axb5 $16 28. Bxd8 Qxd8) 28. Bxc4+ Kh7 29. Bxd8 ({Stronger than} 29. bxa6 Nxd6 30. Bxd8 Nxc4 $11) 29... Qxd8 30. Rf7 {aiming for Re7.} ({Weaker is} 30. bxa6 Nb6 $16) 30... axb5 31. Be6 {And now Qf2 would win.} Qb6 $2 (31... Qh4 32. Ref1 (32. Rxd7 Rxd7 33. Bxd7 Nxd6 $18) 32... Ra6) 32. Rxe4 {Rh4+ would kill now.} ({Less strong is} 32. Rxd7 Rxd7 33. Bxd7 Nxd6 $16) (32. Bxd7 Nxd6 33. Re7 Nf5 $14) 32... Ra1+ 33. Kh2 {Intending Rh4+ and mate.} Nef6 34. Rh4+ {White mates.} Nh5 {[#]} 35. Rxh5+ $1 {[%mdl 512]} gxh5 {[#]} 36. Rxg7+ $1 {[%mdl 512] Accuracy: White = 87%, Black = 55%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.20"]
[White "Zanan, Evgeny"]
[Black "Karthikeyan, Murali"]
[Result "1/2-1/2"]
[ECO "B67"]
[WhiteElo "2500"]
[BlackElo "2602"]
[Annotator "TA"]
[PlyCount "47"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,47,0,0,0,0,0,0,0,0,0,0,0,0,0,50,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 Bd7 7. Qd2 a6 8. O-O-O e6 9. f4 b5 10. Nxc6 Bxc6 11. Bd3 Be7 12. e5 dxe5 13. fxe5 Nd7 14. Bxe7 Qxe7 15. Be4 {B67: Sicilian: Richter-Rauzer: 7...a6 8 0-0-0 Bd7, lines without 9 f4 Be7.} Nxe5 16. Qf4 Bxe4 $1 17. Qxe5 Bg6 18. Qxg7 Qg5+ 19. Rd2 Ke7 $1 {[#] And now ...Rhd8 would win.} 20. h4 Qe3 {[#]} 21. Rf1 $146 {Hoping for Qf6+.} (21. Nd1 $5 {[%cal Rd1e3]} Qf4 {[#]} 22. g3 $1 $11 {[%mdl 512]}) ({Predecessor:} 21. Rh3 Qg1+ 22. Rd1 {1-0 (22) Solak,D (2552)-Ivanisevic,I (2550) Petrovac 2004}) 21... Rhd8 $1 {The position is equal.} 22. Qf6+ Ke8 23. Qh8+ Ke7 24. Qf6+ {An uneventful encounter. Accuracy: White = 89%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.21"]
[White "Ivic, Velimir"]
[Black "Maghsoodloo, Parham"]
[Result "1/2-1/2"]
[ECO "C70"]
[WhiteElo "2558"]
[BlackElo "2674"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,83,19,35,37,43,33,47,46,26,31,60,60,60,66,65,65,65,65,65,65,75,80,75,75,71,77,64,46,87,85,88,85,88,83,140,146,179,161,183,190,181,180,226,216,267,255,261,245,212,212,196,191,177,157,164,150,210,210,172,51,60,32,38,16,134,32,32,25,25,32,32,51,59,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nge7 5. Nc3 d6 6. O-O {C70: Ruy Lopez: 3...a6 4 Ba4, Norwegian and Delayed Schliemann.} Bd7 7. Re1 g6 8. d4 {White is slightly better.} Bg7 {[%cal Re5d4]} 9. dxe5 {[#]} dxe5 $146 ({Predecessor:} 9... Nxe5 10. Bxd7+ Qxd7 11. Nxe5 Bxe5 12. Bh6 Ng8 13. Bg5 h6 14. Bh4 Ne7 15. Bxe7 Bxc3 16. bxc3 Qxe7 {0-1 (57) Hovhannisyan,R (2560)-Getz,N (2333) Aix les Bains 2011}) 10. Nd5 {Strongly threatening Bg5.} O-O 11. Bg5 f6 12. Be3 Re8 13. c4 Nxd5 14. cxd5 Na5 15. Bxd7 Qxd7 16. Qc2 {[#] b4 is the strong threat.} b5 17. Nd2 Bf8 18. Rac1 Rec8 19. Qc3 Nb7 20. f4 Bd6 21. fxe5 fxe5 (21... Bxe5 $142 22. Bd4 Bxd4+ 23. Qxd4 c6) 22. Nf3 $16 Re8 23. h3 Nd8 24. Nh2 h5 25. Rf1 Nf7 26. Rf6 Nh8 27. Nf3 Qg7 28. Re6 Nf7 29. Rxe8+ Rxe8 30. Qc6 Rb8 31. h4 Qf8 32. Qxa6 Ra8 (32... Qc8 $16 33. Qxc8+ Rxc8) 33. Qxb5 $18 Rxa2 34. Qd7 ({Better is} 34. Rf1 $18 {Threatens to win with Ng5.} Qc8 35. Ng5 Nxg5 36. Bxg5) 34... Rxb2 $14 35. Qe6 Kg7 $1 36. Rf1 {Black must now prevent Nxe5!} Qe7 (36... Rb4 $1 $11 {remains equal.}) 37. Qxe7 (37. Nd4 $1 $16) 37... Bxe7 {[#]} 38. Nxe5 $1 {[%mdl 576] Remove Defender, Decoy} Nxe5 39. Bd4 $1 {[%csl LRb2,LRe5][%mdl 64] Double Attack} Rb4 $1 {[%cal Rb4d4]} 40. Bxe5+ Kg8 $1 41. Bxc7 (41. Rf4 $14 Bd6 42. Bxd6 cxd6 43. Kf2) 41... Rxe4 $11 42. g3 {Blacks defense is rewarded with a draw. Accuracy: White = 81%, Black = 75%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.22"]
[White "Kunin, Vitaly"]
[Black "Kovalev, Vladislav"]
[Result "1/2-1/2"]
[ECO "D56"]
[WhiteElo "2550"]
[BlackElo "2650"]
[Annotator "TA"]
[PlyCount "48"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,23,11,19,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. Rc1 c6 10. Bd3 Nxc3 11. Rxc3 Nd7 12. O-O {[#] Not much happened in this game. D56: Queen's Gambit Declined: Lasker Defence.} {Predecessor:} dxc4 $146 13. Bxc4 e5 14. Qc2 Re8 15. Rd1 exd4 16. Nxd4 Ne5 17. Bb3 Bg4 18. f3 Bh5 19. e4 Rad8 20. Qf2 Qb4 21. Rcc1 a5 22. Nf5 Bg6 23. Rxd8 Rxd8 24. Qc5 Rd1+ {0-1 (24) Nihal,S (2598)-Sevian,S (2666) chess.com INT 2019} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.23"]
[White "Jumabayev, Rinat"]
[Black "Chanda, Sandipan"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2646"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,58,26,38,37,23,14,17,10,19,17,19,5,33,0,0,-25,-37,-27,82,69,64,68,98,116,109,107,94,104,117,129,145,148,414,424,417,417,405,418,547,547,542,536,557,560,709,662,1109,804,29989,29990,29995]} 1. Nf3 f5 2. c4 Nf6 3. Nc3 e6 4. d3 Nc6 5. g3 {[#]} d6 $146 ({Predecessor:} 5... e5 6. Bg2 Bc5 7. e3 a6 8. O-O d6 9. d4 exd4 10. Nxd4 Nxd4 11. exd4 Ba7 12. Re1+ {1-0 (38) Blaschke,M (1479)-Teslin,S Regensburg 2004}) 6. Bg2 {A10: English Opening: Unusual Replies for Black.} g6 7. Rb1 Bg7 8. b4 {[%cal Bb2b4,Bb4b5,Bb5b6][%mdl 32] The position is equal.} Qe7 9. O-O O-O 10. b5 Nd8 11. Ba3 e5 12. Nd5 Nxd5 13. cxd5 a6 (13... b6 $11) 14. b6 $36 {[%mdl 2048] White has some pressure.} c5 15. dxc6 $1 Nxc6 16. Nd2 Be6 17. Nc4 {[#] And now Bxc6 would win.} Rfd8 18. Bxc6 bxc6 19. Na5 {b7 is the strong threat.} Bd5 20. Qc2 f4 $2 {[%mdl 8192] [#] Loses the game.} (20... c5 $16) 21. b7 $18 Rab8 22. Nxc6 Bxc6 23. Qxc6 Rd7 24. Qc8+ Rd8 25. Qc4+ Qf7 26. Rfc1 d5 27. Qc7 Qe6 28. Qe7 Qh3 29. Rc7 {[%csl Gc7][%cal Re7g7]} Bf8 {Accuracy: White = 84%, Black = 50%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.24"]
[White "Iljiushenok, Ilia"]
[Black "Rakhmanov, Aleksandr"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "2519"]
[BlackElo "2645"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,102,32,32,15,27,14,23,18,27,21,41,12,23,-6,-3,-4,0,-117,-116,-140,-131,-145,-112,-169,-137,-140,-151,-138,-139,-141,-145,-145,-139,-146,-146,-142,-130,-122,-104,-116,-114,-125,-128,-134,-114,-134,-135,-140,-132,-133,-136,-138,-105,-125,-125,-116,-97,-96,-93,-101,-62,-92,-81,-92,-85,-93,-9,-14,0,0,0,-38,-38,-196,-195,-195,-195,-194,-194,-194,-51,-51,0,-172,-51,-51,-12,-22,0,-52,-14,-12833,-11281]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nf6 6. d4 Be7 7. Bg5 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves.} h6 8. Bf4 a6 {[#]} 9. Bd3 $146 {White has an edge.} ({Predecessor:} 9. Qd2 Bf5 10. O-O-O Nbd7 11. Bd3 Bxd3 12. Qxd3 Nb6 13. d5 Qd7 14. b3 O-O-O 15. a4 {½-½ (101) Sethuraman,S (2673)-Bruzon Batista,L (2653) Saint Louis 2018}) 9... Be6 10. h3 Nbd7 11. Qe2 Nb6 12. O-O-O Qd7 13. Rhe1 O-O-O 14. Bxa6 (14. Kb1 $11 {remains equal.}) 14... bxa6 $17 15. Qxa6+ Kb8 16. d5 Nfxd5 17. Nxd5 (17. Nb5 $17) 17... Bxd5 18. Rxd5 Nxd5 19. Nd4 Nb4 ({Not} 19... Nxf4 $2 20. Rxe7 $1 {[%mdl 512]} Ne6 21. Rxd7 $18) 20. Qa5 {[#]} c5 $1 {Strongly threatening ...Kb7.} 21. Qb6+ (21. Qxc5 Nd3+) 21... Qb7 22. Qxb7+ Kxb7 23. Rxe7+ Kb6 {And now ...Nd5 would win.} 24. Nf5 Nd5 {[%mdl 64] Double Attack} 25. Re4 g6 26. Ne3 Kc6 27. Nxd5 Kxd5 {[%mdl 4096] Endgame KRR-KRB} 28. Re7 g5 29. Bd2 Ra8 30. a3 f5 31. Kd1 Rhe8 32. Rh7 Re6 33. g3 Rg6 34. Rf7 Ke6 35. Rc7 Rf6 36. Rh7 f4 37. gxf4 gxf4 38. Ke2 f3+ (38... Kd5 $17) 39. Kd3 $11 Ra4 {Threatens to win with ...Rd4+.} 40. c4 d5 41. cxd5+ Kxd5 42. Rxh6 $2 (42. Bxh6 $15 Rd4+ 43. Kc3) 42... Rd4+ $1 $19 43. Kc3 Rxh6 44. Bxh6 {KR-KB} Re4 $1 {[%cal Re4e2] White must now prevent ...Re2.} 45. Bg5 Re5 ({Black should play} 45... Ke6 $1 $19 {aiming for ...Kf5.} 46. Kb3 Kf5) 46. Bf4 $15 Re4 (46... Re1 $15) 47. Bg5 $19 {[#]} Re1 (47... Ke6 $1 $19 {Hoping for ...Kf5.} 48. a4 Rxa4) 48. Bf4 $15 Ke4 {[%mdl 1024] Black has compensation.} 49. Bd6 Kd5 50. Bf4 c4 51. Bc7 $2 {[%mdl 8192] [#]} (51. a4 $11) 51... Re3+ $1 {[%mdl 576] Promotion. Accuracy: White = 68%, Black = 70%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.25"]
[White "Abdusattorov, Nodirbek"]
[Black "Stupak, Kirill"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "2644"]
[BlackElo "2518"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,59,28,28,31,69,68,91,81,103,96,129,122,190,193,187,191,193,167,177,169,176,158,191,41,233,228,237,228,216,216,213,231,230,220,213,227,210,235,245,270,232,254,506,485,506,506,505,506,506,498,423,416]} 1. e4 e6 2. d4 d5 3. Nc3 Nc6 4. e5 f6 5. Nf3 fxe5 6. dxe5 {C10: French with 3 Nc3: Unusual Black 3rd moves and 3...dxe4.} g6 7. h4 Bg7 8. Bb5 {White is better.} Bd7 9. Bg5 {[#]} Nce7 $146 ({Predecessor:} 9... Nge7 10. Bxc6 Bxc6 11. Qd3 Qd7 12. O-O-O O-O-O 13. h5 gxh5 14. Rxh5 h6 15. Bf4 Rdf8 {0-1 (38) Preusser,R (2066)-Babula,M (2349) Passau 1999}) 10. Bd3 $1 c6 (10... a6 $16 {keeps fighting.}) 11. h5 $1 $18 Qc7 12. hxg6 h6 13. Bh4 O-O-O 14. O-O c5 15. b3 Rf8 {[#]} 16. Bg3 (16. a4 $1 $18) 16... Nf5 $2 {Black cannot hold the game after this.} (16... h5 $14) 17. Bxf5 $1 Rxf5 18. Nh4 Rg5 {[#]} 19. Nxd5 $1 exd5 {[#]} 20. e6 $1 {[%mdl 576] Discovered Attack} Qc6 (20... Bxe6 21. Bxc7) 21. exd7+ Qxd7 22. Qf3 Ne7 23. Rae1 Rf8 24. Qe3 {[%mdl 64] Double Attack} Nc6 {With the idea ...Bd4.} 25. Qxc5 Rxg3 $2 (25... Rd8) 26. fxg3 {White is clearly winning.} Bd4+ 27. Qxd4 $1 Rxf1+ 28. Rxf1 {And now Qh8+ would win.} Nxd4 29. Rf8+ Kc7 {Hoping for ...Qg4.} 30. Rf7 {Accuracy: White = 89%, Black = 52%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.26"]
[White "Shtembuliak, Evgeny"]
[Black "Murzin, Volodar"]
[Result "1/2-1/2"]
[ECO "D31"]
[WhiteElo "2628"]
[BlackElo "2442"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,86,22,22,20,23,29,24,25,13,20,20,18,31,7,4,0,12,-5,-10,-12,-12,-10,-6,-28,0,-8,0,-3,0,-22,-13,-31,-18,-26,-28,-30,-30,-39,-44,-58,-60,-55,-53,-86,-50,-72,-42,-46,-43,-50,-25,-28,-29,-78,-20,-29,-41,-33,0,-17,-8,-22,0,-5,-9,-7,-6,-14,-14,-14,-17,-22,-13,-13,0,0,0,0,0]} 1. d4 d5 2. c4 e6 3. Nc3 a6 4. cxd5 exd5 5. Nf3 c6 6. Bf4 {D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+ Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6.} Bd6 7. Bxd6 Qxd6 8. e4 {White has an edge.} dxe4 9. Nxe4 Qe7 {[#] Threatens to win with ...Nf6.} 10. Qe2 $1 {[#]} Nd7 $146 ({Predecessor:} 10... Nh6 11. Nd6+ Kd8 12. Nxc8 Qb4+ 13. Qd2 Re8+ 14. Ne5 Qxd2+ 15. Kxd2 Kxc8 16. Bc4 f6 {½-½ (53) Navara,D (2742)-Hammer,J (2651) Novy Bor 2016}) 11. Nd6+ Kf8 $132 {[%mdl 2048] Black is fighting back} 12. Qxe7+ Kxe7 13. Nxc8+ (13. Nf5+ {is interesting.} Kf6 14. Bd3 Nb6 15. Nd6 Ke7 16. Nc4) 13... Rxc8 14. Bc4 Nb6 15. Bb3 Nf6 16. O-O-O Rhe8 17. Ne5 Nfd5 18. Rhe1 Kf8 19. Nd3 Red8 20. g3 Rc7 21. a3 Nf6 22. Ne5 Nc8 23. Bc2 Nd6 24. Bd3 Nb5 25. Bxb5 axb5 26. Nf3 Nd5 27. Kc2 f6 28. Nd2 Kf7 29. Ne4 Re7 30. Nc5 b6 31. Nb3 Ke8 (31... Red7 $17) 32. Nd2 Rxe1 33. Rxe1+ $11 {[%mdl 4096] Endgame KRN-KRN} Kd7 34. Nf1 {The position is equal.} Ra8 35. Ne3 Nxe3+ 36. Rxe3 {KR-KR} Ra4 37. Kd3 b4 38. axb4 Rxb4 39. Kc3 Ra4 40. Re1 b5 41. h4 Rc4+ 42. Kd3 {Hoping for b3.} Rb4 43. Kc3 Rc4+ {Accuracy: White = 94%, Black = 88%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.27"]
[White "Salgado Lopez, Ivan"]
[Black "Vignesh N R"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2597"]
[BlackElo "2436"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,107,0,15,0,-6,-13,19,0,13,15,12,-4,0,-30,-25,-34,0,-7,0,0,0,0,0,0,25,31,27,2,90,44,39,35,34,34,35,36,45,52,46,39,44,33,54,33,40,33,42,28,38,39,36,33,38,19,22,25,40,22,22,22,66,66,96,75,110,110,110,110,110,110,110,110,112,112,139,86,90,90,102,28,96,0,0,0,0,0,0,0,0,0,47,0,0,0]} 1. g3 d5 2. Nf3 Nf6 3. Bg2 c6 4. O-O Bf5 5. c4 e6 6. cxd5 exd5 7. d3 Be7 8. Nc3 O-O 9. Nh4 {A11: English Opening: 1...c6.} Be6 10. e4 dxe4 11. dxe4 Qxd1 12. Rxd1 Na6 13. h3 Rfd8 14. Nf5 Rxd1+ 15. Nxd1 Bxf5 16. exf5 Rd8 17. Nc3 Nb4 18. Rb1 Bc5 19. Bg5 Nd3 20. Ne4 Be7 21. b4 Nxb4 (21... Nxe4 $11 {remains equal.} 22. Bxe7 Rd4) 22. Bxf6 gxf6 23. a3 Nd5 24. Rxb7 Bxa3 25. Rxa7 Bf8 26. Bf3 Kg7 27. Bh5 Be7 28. Rb7 Ra8 29. Bf3 Kf8 30. h4 Ra2 31. Kf1 h6 32. Bd1 Ra1 33. Ke2 Ra2+ 34. Kd3 Nb4+ 35. Kc3 Ra1 36. Bb3 {Threatens to win with Rb8+.} Nd5+ 37. Kd2 Ra8 38. Ke2 Rd8 39. Bc4 Ra8 40. Bxd5 cxd5 $16 {[%mdl 4096] Endgame KRB-KRN} 41. Nc3 Bc5 42. Rb5 $1 {[%cal Rb5c5]} (42. Nxd5 $6 Ra2+ 43. Kf3 Rxf2+ 44. Ke4 Re2+ 45. Kd3 Rg2 $11) 42... Bd4 43. Nd1 $1 ({Much weaker is} 43. Nxd5 $6 Ra2+ 44. Kf3 Rxf2+ 45. Kg4 Be5 $11) 43... Re8+ 44. Kd3 Re1 45. Kd2 (45. Rxd5 $142 {And now Kd2 would win.} Ba7 46. Kd2) 45... Re5 46. f4 $1 {[%cal Rf4e5]} Re4 {[#]} 47. Rxd5 (47. h5 $1 $16) 47... Kg7 {[#]} (47... h5 $1 $11 {keeps the balance.}) 48. Kd3 (48. h5 $1 $16) 48... Re1 $11 49. Rxd4 (49. Kxd4 {is interesting.} Rxd1+ 50. Kc4 Rc1+ 51. Kb4 Rb1+ 52. Kc3) 49... Rxd1+ 50. Ke3 Rh1 51. Kf3 h5 $1 52. Rd3 Rf1+ 53. Kg2 Ra1 54. Rd5 {Accuracy: White = 81%, Black = 72%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.28"]
[White "Wagner, Dennis"]
[Black "Mendonca, Leon Luke"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2590"]
[BlackElo "2418"]
[Annotator "TA"]
[PlyCount "137"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,137,25,13,2,12,2,20,26,22,22,29,20,27,30,33,37,39,29,25,33,37,21,27,26,48,45,47,46,47,47,48,47,47,47,47,47,47,47,47,59,59,59,59,59,59,59,59,59,59,59,59,59,61,59,65,57,75,75,75,68,75,64,75,75,75,75,75,75,75,75,75,75,75,75,75,75,75,75,75,75,75,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,63,58,63,63,63,63,63,49,49,49,49,0,49,0]} 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 dxc4 5. e4 Bb4 6. Bxc4 {D24: Queen's Gambit Accepted: 3 Nf3 Nf6 4 Nc3.} Nxe4 7. O-O Nf6 8. Qa4+ {The position is equal.} Nc6 9. Ne5 Rb8 10. d5 exd5 11. Nxc6 bxc6 {[#]} 12. Nxd5 $1 {[%mdl 576] Decoy} Nxd5 13. Qxc6+ {[%mdl 64] [#] Double Attack} Bd7 $146 ({Predecessor:} 13... Qd7 14. Qxd5 O-O 15. Qxd7 Bxd7 16. Rd1 Bg4 17. f3 Bc5+ 18. Kf1 Be6 19. Bxe6 fxe6 {½-½ (31) Mamedyarov,S (2817)-Caruana,F (2832) Germany 2019}) 14. Qxd5 {[%csl Gc4][%cal Rd5f7]} O-O $1 15. Bf4 Bd6 16. Bxd6 Be6 17. Qe4 Bxc4 18. Bxf8 Bxf1 19. Bc5 Bd3 20. Qe5 a6 21. Rd1 {Qc3 is the strong threat.} Qe8 22. Bd4 {[%csl Gd4][%cal Re5g7]} Qxe5 23. Bxe5 $14 {[%mdl 4096] Endgame KRB-KRB} Bc2 24. Rc1 Rd8 25. Bxc7 Rd1+ 26. Rxd1 Bxd1 {KB-KB} 27. Kf1 Kf8 28. Ke1 Bg4 29. Kd2 Ke7 30. Kc3 Kd7 31. Be5 g6 32. Kd4 h5 33. Kc5 Be2 34. Bf4 Bf1 35. Kb6 Kc8 36. a4 Be2 37. b4 Bf1 38. Bd2 Be2 39. b5 axb5 40. axb5 Bf1 {[#]} 41. g3 $1 Be2 42. Kc6 Bf3+ 43. Kd6 Kb7 44. Be3 Be4 45. Ke7 Bd5 $1 46. Kf6 Bc4 47. b6 Bd5 48. Kg5 Bf3 49. Kf4 Be2 50. Ke4 Bd1 51. f3 Be2 52. Kf4 Bd1 53. g4 Kc6 54. Kg3 Kb7 55. gxh5 gxh5 56. f4 Kc6 57. Kh4 Kb7 58. Kg5 Kc6 59. Kf6 Bb3 60. f5 Kb7 61. Kg5 Bd1 62. Kh6 Be2 63. Kg7 Bc4 64. h4 Bb3 65. Kh6 Bd1 66. f6 Be2 67. Kg7 Bc4 68. Kh6 Be2 69. Kg7 {Accuracy: White = 98%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.29"]
[White "Kardashevskiy, Evgeny"]
[Black "Shimanov, Aleksandr"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "2437"]
[BlackElo "2587"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,92,35,20,33,14,10,12,20,1,13,14,28,0,11,0,0,0,0,5,35,12,6,-23,0,0,0,-6,-3,-92,-89,-82,-82,-94,-78,-95,-89,-200,-198,-202,-200,-199,-195,-256,-256,-225,-254,-229,-226,-301,-302,-294,-349,-349,-343,-403,-400,-468,-458,-468,-483,-489,-489,-470,-458,-516,-514,-494,-494,-469,-459,-737,-737,-839,-835,-815,-776,-825,-855,-820,-813,-753,-701,-667,-645]} 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Ne4 {E60: King's Indian: Unusual lines and Fianchetto Variation without Nc3.} 7. Nbd2 Nxd2 8. Bxd2 e5 {The position is equal.} 9. Bc3 {[%cal Rd4e5]} Qe7 {[#]} 10. e3 $146 ({Predecessor:} 10. e4 Bg4 11. d5 {½-½ (11) Paunovic,D (2460)-Peev,P (2385) Pancevo 1989}) 10... Nc6 11. Qb3 a5 12. a4 Kh8 13. Rfe1 f5 14. Nd2 Bd7 15. d5 ({Reject} 15. Qxb7 Rfb8 $15) (15. c5 $5) 15... Nd8 {[%cal Bc6d8,Bd8b7,Bb7c5][%mdl 32]} 16. f4 b6 17. e4 Nb7 18. exf5 Nc5 ({Of course not} 18... Rxf5 19. fxe5 Bxe5 20. Nf3 $16) 19. Qd1 (19. Qa3 $11 {remains equal.}) 19... gxf5 $17 {Black keeps a firm grip on the game.} 20. Qc2 Rae8 21. b3 Bf6 22. Re3 Qg7 {...exf4 is the strong threat.} 23. Qb2 (23. fxe5 $17 {might work better.} dxe5 24. Rf1) 23... exf4 $19 24. Bxf6 Rxf6 25. Rxe8+ Bxe8 26. gxf4 (26. Re1 $142 Bd7 27. Qd4) 26... Nd3 27. Qd4 {[#]} Rg6 $1 {[%mdl 512]} 28. Qxg7+ Kxg7 29. Rf1 Rg4 30. Kh1 Rxf4 31. Bf3 Ne5 32. Kg2 Rd4 33. Nb1 f4 {Black is clearly winning.} 34. Rf2 Bg6 35. Rd2 Rxd2+ 36. Nxd2 {[%mdl 4096] Endgame KBN-KBN} Kf6 37. Be4 Bf5 38. Kf2 Bxe4 39. Nxe4+ {KN-KN} Kf5 40. Nc3 (40. Nd2 $142 Kg4 41. Ne4) 40... Nd3+ 41. Kg2 Nc5 42. Nb5 Nxb3 43. Nxc7 Nd2 44. Nb5 Nxc4 45. Kf3 Ke5 46. Nc3 Ne3 {Accuracy: White = 61%, Black = 97%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.30"]
[White "Badelka, Olga"]
[Black "Savchenko, Boris"]
[Result "0-1"]
[ECO "A50"]
[WhiteElo "2404"]
[BlackElo "2573"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,78,41,57,34,36,53,43,36,53,31,52,43,60,19,46,45,39,10,25,33,24,-13,-19,-7,-15,-24,-6,-17,0,0,0,0,-19,-65,-68,-112,-115,-106,-118,-122,-130,-121,-97,-106,-98,-154,-151,-154,-159,-158,-158,-158,-154,-151,-155,-160,-132,-479,-479,-479,-458,-687,-669,-1039,-1037,-1125,-1017,-983,-907,-747,-547]} 1. d4 Nf6 2. c4 g6 3. f3 c5 4. d5 e6 5. Nh3 {[#]} exd5 $146 ({Predecessor:} 5... d6 6. Nf2 b5 7. e4 Bg7 8. dxe6 Bxe6 9. cxb5 O-O 10. Be2 d5 11. O-O a6 12. a4 axb5 13. Bxb5 {1-0 (29) Ding,L (2778)-Vidit,S (2707) Liaocheng 2018}) 6. cxd5 {E60: King's Indian: Unusual lines and Fianchetto Variation without Nc3.} d6 7. Nf2 Bg7 8. e4 {White is slightly better.} O-O 9. Nc3 Na6 10. Be2 Nc7 11. O-O Qd7 12. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} b6 13. f4 Ba6 14. Bxa6 Nxa6 15. e5 Ne8 $1 16. Re1 Nb4 17. a5 Nc7 18. exd6 Qxd6 {[%cal Rc7d5]} 19. Nfe4 Qd7 {[%cal Rc7d5]} 20. d6 Ne6 21. Nd5 f5 $1 {[%cal Rf5e4]} ({Don't blunder} 21... Bd4+ $2 22. Qxd4 $1 {[%mdl 512]} Nxd4 23. Ndf6+ Kg7 24. Nxd7 $18) 22. Nf2 {[#] Black must now prevent Nxb4.} Nd4 $1 23. Nxb4 cxb4 24. Be3 Qxd6 25. Nd3 b3 {And now ...Rad8 would win.} 26. Bxd4 Qxd4+ 27. Kh1 ({White should try} 27. Kf1) 27... Qd5 $17 28. Ra3 bxa5 {...a4! is the strong threat.} 29. Qxb3 Qxb3 30. Rxb3 Rab8 31. Ra3 Rfd8 32. Ne5 Bf8 33. Nc6 $2 {[%mdl 8192] Loses the game.} (33. Ra2 $17) 33... Bxa3 $19 {Black is clearly winning.} 34. Nxd8 Rxb2 {KRB-KRN} (34... Rxd8 $2 35. bxa3 Rd3 36. Kg1 $17) 35. Re8+ (35. g3 $142 Rb6 36. Re8+ Kg7 37. Re5) 35... Kg7 {( -> ...Rb1+)} 36. g3 a4 {[%cal Ba5a4,Ba4a3][%mdl 32]} 37. Nc6 Bf8 38. Ra8 a3 {Threatens to win with ...Bc5.} 39. Rxa7+ Kg8 {Accuracy: White = 56%, Black = 90%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.31"]
[White "Gokerkan, Cem Kaan"]
[Black "Erigaisi Arjun"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2461"]
[BlackElo "2563"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,92,0,11,0,17,15,26,20,27,23,22,9,17,19,22,22,22,24,39,0,0,0,18,0,20,13,24,0,2,-55,-22,-129,-124,-225,-205,-187,-19,-6,-8,-7,-10,-7,0,0,0,0,0,-20,2,0,0,-276,-218,-218,-225,-217,-227,-360,-359,-543,-537,-536,-524,-612,-612,-612,-610,-766,-608,-598,0,-758,-544,-533,-512,-562,-562,-562,-562,-1046,-1010,-918,-560,-1777,-1643]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. Ba4 Ngf6 5. O-O a6 6. c4 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} g6 7. Nc3 Bg7 8. Rb1 {White has an edge.} O-O 9. d3 Nb6 10. Bc2 Bg4 11. h3 Bh5 12. Qe2 Bxf3 13. Qxf3 Nbd7 14. Bd1 Ne5 15. Qg3 Nc6 16. h4 Nd7 17. h5 e6 18. Ne2 b5 19. Qxd6 (19. Bg5 $11 Bf6 20. Bh6) 19... Nce5 {Hoping for ...Re8.} 20. hxg6 (20. b4 $11) 20... hxg6 $17 21. f4 (21. Bf4 $17) 21... Ng4 22. g3 {[#]} Nb6 $2 (22... Rb8 $1 $19 {[%cal Rb8b6] White must now prevent ...Rb6.} 23. Qxa6 Nb6) 23. Qxd8 $11 Rfxd8 24. b4 Rxd3 25. cxb5 c4 26. bxa6 Rxa6 27. a4 $1 {[%cal Ra4a5]} Nxa4 {And now ...Nb6 would win.} 28. b5 Ra8 $36 {[%mdl 2048] Strongly threatening ...Nb6. Black is more active.} 29. Bc2 Bf8 30. Rd1 $2 {[%mdl 8192] White is on the road to losing.} (30. Ra1 $11 Nc3 {[%mdl 64] Double Attack} 31. Rxa8 Nxe2+ 32. Kh1) 30... Bc5+ 31. Kg2 {[#]} Ne3+ $1 32. Bxe3 Rxe3 33. Re1 (33. Ng1 {is the only way for White.} Nc3 {[%mdl 64] Double Attack} 34. Ra1) 33... Nb6 $19 34. Kh3 (34. Rb2 $142) 34... Ra2 35. Bd1 Rxe4 36. Nc3 Rxe1 37. Nxa2 Nd5 38. Rc1 Be3 39. Rb1 Bc5 40. Rc1 Ba3 {Black is clearly winning.} 41. b6 Nxb6 ({Weaker is} 41... Ne3 42. Bf3 $17) 42. Rb1 Nd5 43. Rb8+ Kg7 44. Bc2 Ra1 45. Bb1 c3 46. Rb3 {[#]} Rxa2 $1 {[%mdl 64] Promotion. Accuracy: White = 58%, Black = 76%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.32"]
[White "Makarian, Rudik"]
[Black "Antipov, Mikhail Al."]
[Result "0-1"]
[ECO "D71"]
[WhiteElo "2414"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,66,16,11,16,13,6,19,16,6,21,2,2,0,0,0,0,-12,-4,-15,-12,-16,-10,-42,0,0,0,0,0,0,0,0,0,0,0,-611,-595,-797,-787,-767,-739,-750,-770,-763,-753,-1626,-1556,-3104,-2076,-2469,-1037]} 1. d4 Nf6 2. c4 g6 3. g3 c6 4. Bg2 d5 5. cxd5 cxd5 6. Nc3 Bg7 7. Nf3 O-O 8. Ne5 Bf5 9. O-O Ne4 10. Bf4 {10.Bf4 is better than 10.Qb3.} Nxc3 {D79: Fianchetto Grünfeld: Symmetrical Variation (6 0-0 c6 7 cxd5 cxd5).} 11. bxc3 Nc6 12. Nxc6 bxc6 {The position is equal.} 13. Qa4 e6 14. Qxc6 Rc8 15. Qa6 Rxc3 16. Qxa7 Rc4 {[#]} 17. Rfd1 $146 ({Predecessor:} 17. Be5) 17... g5 (17... Bc2 $5 18. Rd2 $8 Ra4 $11) 18. Be3 Bc2 {Hoping for ...Ra4.} 19. Rd2 h6 20. a4 f5 {[%mdl 1024] Strongly threatening ...f4. Black has compensation.} 21. Rc1 Qc8 {aiming for ...f4.} 22. f4 $1 Rf7 23. Qb6 Rfc7 24. fxg5 Bf8 25. gxh6 Rb7 $36 {[%mdl 2048] Black is more active.} 26. Qa6 $2 {[%mdl 8192]} (26. Qa5 $11 Bb4 {[%mdl 64] Double Attack} 27. Qa6 Bxd2 28. Bxd2) 26... Rb1 $19 {Black is clearly winning.} 27. Qa5 Rxc1+ 28. Kf2 Qd7 29. Qa8 Rc8 30. Qa6 Kh7 31. g4 fxg4 {White must now prevent ...Qf7+.} 32. Bf4 Bxh6 {...Qf7! is the strong threat.} 33. Rxc2 {[#]} Bxf4 {Accuracy: White = 64%, Black = 92%.} (33... Qf7 $142 $1 {[%mdl 512]} 34. Qd3+ {[#]} Kg7 $1 {[%mdl 512]}) 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.33"]
[White "Aryan Chopra"]
[Black "Buksa, Nataliya"]
[Result "1-0"]
[ECO "C80"]
[WhiteElo "2562"]
[BlackElo "2403"]
[Annotator "TA"]
[PlyCount "123"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,122,27,47,38,50,39,32,52,33,21,29,31,25,18,68,68,70,69,77,73,64,77,72,42,72,40,48,60,57,56,60,53,63,62,73,48,53,66,64,0,0,0,77,60,80,75,75,70,73,72,83,63,63,64,71,68,81,60,62,58,61,46,45,46,45,52,45,0,46,48,87,60,62,53,55,66,270,268,270,266,257,250,288,274,264,208,319,309,485,483,499,489,409,437,12843,0,12844,12844,12845,12845,12845,12846,29999]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Nbd2 Nc5 10. c3 Be7 11. Bc2 d4 12. Nb3 {[%cal Rb3d4] C83: Open Ruy Lopez: 9 c3 Be7.} d3 13. Bb1 Nxb3 14. axb3 {White is slightly better.} Bf5 15. Be3 O-O 16. Bd4 Qd5 17. Re1 Nxd4 {17...Rfd8 is setting a new trend.} 18. Nxd4 {[#]} d2 $1 {[%mdl 512]} 19. Bxf5 (19. Qxd2 Bxb1) 19... dxe1=Q+ 20. Qxe1 Rad8 21. Be4 {[%mdl 1024] White has compensation.} Qd7 22. Bc6 (22. Rxa6 Bc5 $11) 22... Qc8 23. e6 Kh8 24. Bd7 Rxd7 25. exd7 Qxd7 26. Rxa6 Bf6 27. Nf3 Re8 28. Qa1 (28. Qf1 {seems wilder.} Qf5 29. b4 Rd8 30. h4 Qc2 31. Qxb5 Qxb2 32. g3) 28... Qd5 29. b4 h6 30. h3 (30. Qf1 $14) 30... Re2 $11 31. Qb1 $40 {[%mdl 128] White mounts an attack.} Re8 (31... Kg8 $11) 32. Qf1 Rd8 33. Ra1 g6 34. Qe2 Kg7 35. Ne1 Be5 36. Kf1 h5 37. Nc2 Bf6 38. Ne3 Qb3 39. Rd1 (39. Kg1 {with more complications.} Bg5 40. Ra6 Bxe3 41. Qxe3 Rd1+ 42. Kh2) 39... Rxd1+ 40. Nxd1 c6 41. Ne3 Bg5 42. Qc2 Qe6 43. Qd3 Qa2 44. Qd2 Qe6 (44... Bxe3 $5 45. fxe3 Qb1+ 46. Kf2 h4 $11) 45. Ke2 Qa2 46. Kf3 {aiming for Nf5+!} Qb1 47. Qc2 Qa1 48. Qe4 f5 $2 ({Black should play} 48... h4 $14) 49. Qe5+ $18 (49. Qxc6 Bxe3 50. Qc7+ (50. fxe3 Qxb2 51. c4 bxc4 $16) 50... Kh6 $16) 49... Kh7 50. Qc7+ Kh6 51. Qxc6 {White threatens Nxf5+ and mate.} Bxe3 52. Kxe3 ({And not} 52. fxe3 h4 $11) 52... Qxb2 {[%mdl 4096] Endgame KQ-KQ} 53. g3 (53. Qxb5 Qxc3+ 54. Ke2 Qc2+ 55. Ke1 Qe4+ 56. Kf1 Qb1+ 57. Ke2 Qe4+ 58. Kf1 Qb1+ 59. Ke2 Qe4+ 60. Kf1 $11) 53... Qc2 (53... Qc1+ $142 54. Ke2 Qc2+ 55. Kf3 Qb1) 54. Qc5 ({Not} 54. Qxb5 Qxc3+ 55. Ke2 Qc2+ 56. Kf1 h4 $16) 54... h4 (54... Kh7 {is a better defense.} 55. Kf4 (55. Qxb5 Qxc3+ 56. Ke2 Qc2+ 57. Kf1 Qe4 $16) 55... Qd2+ 56. Ke5 Qd7) 55. Qd4 {Threatening mate with Qh8+.} Qc1+ 56. Kf3 $1 {Intending Qh8+ and mate.} Qh1+ 57. Ke2 $1 {Qh8+ would kill now.} hxg3 (57... Qa8 $142 58. Qxh4+ Kg7 59. Qe7+ Kh6) 58. Qh8+ $1 Kg5 {[#] Threatening ...Qe4+.} 59. f4+ $1 {[%mdl 576] Deflection, Decoy} Kxf4 {[#]} 60. Qh4+ $1 Ke5 61. Qe7+ Kf4 62. Qe3# {Accuracy: White = 88%, Black = 67%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.34"]
[White "Kulaots, Kaido"]
[Black "Sargissian, Gabriel"]
[Result "0-1"]
[ECO "C65"]
[WhiteElo "2510"]
[BlackElo "2689"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,84,20,19,12,14,8,20,0,7,0,4,0,8,8,1,8,31,19,21,17,31,2,16,21,41,16,45,52,28,35,43,39,35,0,0,0,0,0,0,0,36,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-18,-12,-54,-50,-57,-40,-40,-24,-23,-29,-151,-151,-151,-151,-215,-215,-215,-212,-210,-208]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bxc6 dxc6 6. Nbd2 {[%cal Bb1d2,Bd2c4,Bc4a5][%mdl 32] C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5.} Nd7 7. Nc4 f6 $1 {[%mdl 4] is recently more successful than 7...0-0. Played by Anish Giri in January 2020.} 8. c3 {The position is equal.} Nb6 9. Na5 Bd6 {[#]} 10. O-O $146 ({Predecessor:} 10. b4 c5 11. a3 O-O 12. Be3 Nd7 13. O-O b6 14. Nc4 Be7 15. d4 exd4 16. cxd4 cxb4 17. axb4 Kh8 18. Bd2 Nb8 19. d5 f5 20. exf5 Qxd5 21. Ne3 Qd3 {½-½ (21) Anand,V (2758)-Giri,A (2768) Wijk aan Zee 2020}) 10... O-O 11. b4 c5 12. a3 Rb8 13. Be3 Qe7 14. Nd2 Be6 15. Ndb3 {[%cal Rb4c5]} Nd7 16. Qc2 f5 17. f3 a6 18. exf5 Bxf5 {[%cal Rc5b4]} 19. Nd2 cxb4 20. axb4 c5 21. b5 axb5 {aiming for ...c4!} 22. Qb3+ c4 23. dxc4 {And now c5+ would win.} Nc5 24. Qxb5 Bd3 25. Rf2 Qc7 26. Nab3 b6 27. Nxc5 bxc5 28. Qa5 Qc6 {...Ra8 is the strong threat.} 29. Qa4 Qxa4 30. Rxa4 Ra8 31. Rxa8 Rxa8 32. Nb3 $1 e4 33. g3 Bxc4 34. Nxc5 (34. Nd2 {feels hotter.} Ra1+ 35. Kg2 exf3+ 36. Kxf3 Bd5+ 37. Ke2) 34... exf3 35. Rxf3 Ra1+ 36. Kf2 Ra2+ {[%mdl 1024] Black has compensation.} 37. Kg1 Ra5 38. Nd7 (38. Nb7 $1 $11 Ra1+ 39. Kg2 Ra2+ 40. Bf2) 38... Ra1+ $17 {Black is clearly better.} 39. Kf2 Bd5 $1 {Hoping for ...Ra2+.} 40. Rf5 {[#]} (40. Rf6 $17 {was called for.} Ra2+ 41. Kg1 Rg2+ 42. Kf1 gxf6 43. Nxf6+ Kf7 44. Nxd5 Rxh2 45. Bf2) 40... Ra2+ $1 $19 41. Kg1 Be6 $1 {[%csl LRd7,LRf5][%mdl 64] Double Attack} 42. Nf6+ {[#]} Kf7 $1 {Accuracy: White = 75%, Black = 94%.} ({Much less strong is} 42... gxf6 43. Rxf6 Ra1+ 44. Kf2) 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.35"]
[White "Indjic, Aleksandar"]
[Black "Karthik Venkataraman"]
[Result "1-0"]
[ECO "D52"]
[WhiteElo "2622"]
[BlackElo "2483"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,77,33,18,32,52,36,40,54,50,52,44,44,31,46,16,18,0,0,12,33,38,29,32,46,29,37,34,25,27,28,36,34,18,20,22,22,22,24,25,28,22,21,0,0,0,0,0,46,27,50,61,80,0,0,0,72,68,69,71,84,85,29976,29977,29974,29973,29993,29994]} 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 c6 5. Bg5 Nbd7 6. e3 h6 7. Bh4 g5 {outshines the older 7...Be7. D51: Queen's Gambit Declined: 4 Bg5 Nbd7 sidelines.} 8. Bg3 Nh5 9. Qc2 Nxg3 {White is slightly better.} 10. hxg3 Bg7 11. O-O-O Qe7 12. cxd5 exd5 13. Bd3 Nb6 14. e4 dxe4 15. Nxe4 Be6 16. Nc5 O-O-O 17. Rhe1 Kb8 ({But not} 17... Bxd4 $6 18. Nxe6 fxe6 19. Rxe6 $1 $16 {[%mdl 512]}) 18. Bf5 {[%cal Rf5e6]} Rd6 {[#]} 19. Re4 $146 ({Predecessor:} 19. Bxe6 fxe6 20. Qb3 Re8 21. Re4 Rd5 22. Nxe6 Qd6 23. Nexg5 Rc8 24. Ne6 c5 25. Nxg7 cxd4+ {1-0 (90) Ivanov,S (2540)-Niemi,K (2357) Stockholm 2018}) 19... Nd7 20. Nxe6 fxe6 21. Rde1 {[%cal Re4e6]} Nf8 22. Qb3 {[%cal Rf5e6]} Qd8 23. Bxe6 Nxe6 24. Rxe6 Bxd4 25. Nxd4 Rxd4 26. Rxc6 Qd7 27. Rc3 Rd8 28. a3 Rd2 29. Rf3 a5 30. Kb1 a4 31. Qe6 Qh7+ 32. Ka2 ({White should try} 32. Re4 $16 {Rf7 is the strong threat.} R2d4 33. Rf5) 32... Qc2 $11 {[%csl Gd2][%cal Rc2b2]} 33. Qe5+ Ka8 (33... R8d6 $11) 34. Qb5 $16 R8d5 35. Qb4 $1 {aiming for Rc3.} R2d4 {[#]} 36. Rc3 $1 $40 {[%mdl 128] Threatens to win with Qb6. Black is in trouble.} Qxf2 $2 {[%mdl 8192] [#]} (36... Rxb4 $16 37. Rxc2 Rbd4) 37. Qb6 $1 {[%cal Rc3c8][%mdl 512] White mates.} Rd8 38. Re7 {[%csl Ge7][%cal Rb6b7]} Qxg2 39. Rc5 {Accuracy: White = 93%, Black = 81%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.36"]
[White "Raja Harshit"]
[Black "Chigaev, Maksim"]
[Result "1/2-1/2"]
[ECO "B94"]
[WhiteElo "2472"]
[BlackElo "2616"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,86,10,14,15,14,15,26,13,49,41,62,14,33,23,21,18,14,14,20,16,41,18,31,39,38,8,21,11,20,-42,-56,-48,-46,-35,-33,-62,-12,-27,-60,-53,0,-27,-23,-21,-27,-26,-33,-21,9,-62,-72,-113,-3,-3,11,10,10,10,11,17,17,16,17,16,76,76,76,76,70,66,75,73,39,4,4,3,4]} 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. Bg5 Nbd7 7. Qe2 {B94: Sicilian Najdorf: 6 Bg5 Nbd7.} h6 8. Bh4 g6 9. f4 {White has an edge.} e5 10. fxe5 dxe5 11. Nb3 Bb4 12. Qf3 Bxc3+ 13. bxc3 Qb6 14. Bd3 O-O 15. Bf2 Qc6 16. O-O {[#]} b6 $146 ({Predecessor:} 16... Kg7 17. Be3 Qxc3 18. a4 Qc7 19. a5 Nh5 20. Qf2 Ndf6 21. Qd2 g5 22. Ra4 Re8 {½-½ (41) Boos,M (2376)-Maetzig,R (2088) GER email 2017}) 17. Be3 Kg7 18. Rad1 Bb7 19. c4 {[%cal Bc3c4,Bc4c5][%mdl 32]} a5 20. a4 ({White should play} 20. Nd2 $11) 20... Qxa4 $15 21. c5 Qc6 22. cxb6 a4 23. Nd2 a3 24. Ra1 a2 25. Bc4 Nxb6 (25... Ba6 $1 $15 26. Bd3 (26. Bxa6 Rxa6 27. c4 Nxb6 $17) 26... Bxd3 27. cxd3 Nxb6 28. Qxf6+ Qxf6 29. Bxh6+ Kxh6 30. Rxf6 Nd7) 26. Bb5 Qd6 27. Qxf6+ $1 Qxf6 28. Rxf6 Kxf6 29. Bxb6 Ba6 30. Ba4 (30. Bc6 $11 Rac8 31. Bd5 (31. Rxa2 Rxc6 32. Rxa6 Rfc8 $11) 31... Rxc2 32. Rxa2 Rxa2 33. Bxa2) 30... Rfb8 31. Bc7 Rb2 (31... Rc8 $17 32. Bb6 Rab8) 32. Bb3 $11 Bd3 33. cxd3 {[#] Strongly threatening Bxe5+!} Rxd2 34. Rf1+ Ke7 $1 35. Bxe5 f5 36. exf5 gxf5 37. Re1 {[#] And now Bc3+ would win.} Kd7 (37... Rxd3 $11 {keeps the balance.} 38. Bc4 Rd7) 38. Bc4 $16 Rc2 39. h4 Ra3 40. Bd4 f4 41. Rf1 Ra8 42. Bg7 f3 43. Rxf3 a1=Q+ {Accuracy: White = 78%, Black = 82%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.37"]
[White "Zarubitski, Viachaslau"]
[Black "Sivuk, Vitaly"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2432"]
[BlackElo "2557"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,107,7,8,24,16,24,34,24,0,0,-21,-12,-48,-43,-47,-43,-47,-47,-48,-38,-36,-46,-45,-54,-47,-50,-43,-59,-66,-42,-41,-34,-83,-88,-85,-87,-97,-97,-97,-87,-122,-93,-131,-138,-141,-141,-177,-182,-206,-184,-184,-171,-252,-250,-241,-246,-208,-240,-222,-117,-110,-110,-110,-110,-110,-110,-110,-110,-110,-15,-13,0,0,56,57,56,50,64,52,64,64,64,64,64,63,63,63,63,63,66,27,28,25,26,12,12,11,12,12]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 cxd4 5. Qxd4 a6 6. Bxd7+ Qxd7 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} 7. Nc3 e5 8. Qd3 Qc6 {White is slightly better.} 9. Nd5 {[#]} f5 $146 ({Predecessor:} 9... Be6 10. c4 b5 11. Nd2 Ne7 12. b3 Ng6 13. O-O Rc8 14. a4 bxc4 15. Nxc4 Bxd5 16. exd5 {1-0 (28) Grover,S (2478)-Das,S (2396) Bhubaneswar 2017}) 10. Nd2 Nf6 11. f3 (11. c4 {is more complex.} Be6 12. f3 Rc8 13. b3 Bxd5 14. exd5 Qd7 15. a4) 11... Nxd5 12. exd5 Qc7 13. a4 Be7 14. O-O O-O 15. a5 Bd7 16. c4 b5 17. axb6 Qxb6+ 18. Kh1 a5 19. Rb1 Rfc8 20. b3 Bg5 $36 {[%mdl 2048] Black has the initiative.} 21. Ba3 Qe3 22. Qxe3 Bxe3 23. Rfd1 Ra6 24. Nf1 Bd4 25. Rdc1 Kf7 26. Ng3 g5 27. Ne2 Be3 28. Rc3 f4 29. Rd1 Rb6 30. h3 h5 31. Rdd3 {[#]} (31. Kh2 $142) 31... Bf2 $1 $19 32. Rd1 Bf5 33. Rf1 Be3 34. Ng3 fxg3 ({Black should play} 34... Bh7 $19 {Hoping for ...Bd2.} 35. Ne4 Bxe4 36. fxe4 Ke7) 35. Rxe3 $17 {[#]} a4 $1 {[%mdl 576] Deflection} 36. bxa4 Rxc4 37. a5 Ra6 38. Rb3 Rc2 {Threatens to win with ...Bxh3!} 39. Rb7+ Ke8 ({Black should try} 39... Kg6 $17 40. Rb6 Rxa5 {[%mdl 64] Double Attack} 41. Bxd6 {[#]} Bxh3 $1 {[%mdl 512]} 42. Bb4+ Kf5 43. Bxa5 Bxg2+ {[%mdl 64] Double Attack} 44. Kg1 Bxf1 45. Kxf1 Rf2+ 46. Kg1 Rxf3) 40. Re1 $11 Rxa5 41. Bxd6 Re2 ({Better is} 41... Rxd5 $11 42. Re7+ (42. Bxe5 Re2 $17) 42... Kd8 43. R7xe5 Rxd6 44. Rxf5 Rg6) 42. Re7+ $14 Kd8 {[%cal Re2e1]} 43. Rxe5 Rxe1+ 44. Rxe1 Rxd5 {[%mdl 4096] Endgame KRB-KRB} 45. Be7+ Kd7 46. Bxg5 Bxh3 47. Bf4 Be6 48. Bxg3 Rd4 49. Be5 Rc4 50. Bf6 h4 51. Rd1+ Ke8 $1 52. Be5 Rc2 53. Rd3 h3 54. gxh3 {And White is the lucky defender. Accuracy: White = 79%, Black = 89%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.38"]
[White "Nikitenko, Mihail"]
[Black "Grigoriants, Sergey"]
[Result "0-1"]
[ECO "A20"]
[WhiteElo "2440"]
[BlackElo "2539"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,91,10,7,14,16,0,14,-17,-3,-2,-5,-6,9,8,20,6,51,-156,-150,-175,-173,-160,-148,-181,-181,-166,-159,-159,-162,-120,-122,-214,-214,-223,-181,-186,-175,-177,-176,-183,-183,-177,-149,-141,-156,-205,-133,-166,-169,-157,-151,-134,-146,-168,-162,-162,-168,-161,-67,-72,0,-166,-116,-111,-112,-241,-239,-241,0,0,0,-244,-237,-239,-230,-547,-401,-400,-400,-768,-693,-912,-889,-851]} 1. c4 e5 2. g3 Nf6 3. Bg2 c6 4. d4 e4 5. Nc3 d5 6. cxd5 {A20: English Opening: 1...e5.} cxd5 7. Bg5 Nbd7 8. Nh3 {The position is equal.} h6 9. Bxf6 Nxf6 10. O-O {[#]} Bf5 $146 ({Predecessor:} 10... Bd7 11. f3 exf3 12. Rxf3 Be7 13. Nf4 Bc6 14. Nd3 O-O 15. Ne5 Bd6 16. Nxc6 bxc6 {0-1 (48) Weber,T (2406)-Sadler,M (2653) London 2014}) 11. Qb3 Qd7 12. Nf4 {[%cal Rc3d5]} Rd8 13. Rac1 $2 (13. f3 $1 $14 {stays ahead.}) 13... g5 $17 14. Nb5 {Nc7+ is the strong threat.} gxf4 15. Nc7+ Ke7 16. Qb4+ Qd6 17. Qxb7 {Black must now prevent Nxd5+.} Bd7 $1 18. Qxa7 Bg7 19. Rc5 Rb8 20. Qa3 (20. b3 $17) 20... fxg3 $19 21. fxg3 {Black should prevent Rxf6!} Rhc8 22. e3 Rxc7 23. Rxc7 Qxa3 24. bxa3 Kd6 25. Ra7 Be6 {[%mdl 1024] Black has strong compensation.} 26. h3 h5 $1 27. a4 Nd7 28. a5 {[#]} Bh6 $1 {[%cal Rh6e3]} 29. Re1 Rb2 30. a4 Ra2 31. Bf1 Rxa4 32. Ra8 Ra3 33. Kf2 Ra2+ (33... Ke7 $19 34. Rh8 Bg7) 34. Re2 $1 $15 {[%cal Re2a2]} Ra3 (34... Ra1 $17) 35. a6 $2 (35. Re1 $1 $11 {and White has nothing to worry.}) 35... Nb6 36. Rh8 Bg7 37. Rd8+ (37. Rh7 $17 {might work better.} Bf6 38. Rb2) 37... Ke7 $19 38. Rg8 Bh6 39. Rh8 Bg7 $36 {[%mdl 2048] Black is pushing.} 40. Rg8 $1 {[%cal Rg8g7] [#]} Kf6 $1 41. Rb2 Nc8 42. g4 $2 (42. Kg2) 42... hxg4 43. hxg4 {intending g5+.} Bh6 44. Bh3 (44. Ke1 $142 Bxe3 45. g5+ Bxg5 46. Rf2+ Bf5 47. Rxf5+ {[%mdl 64] Remove Defender} Kxf5 48. Rxc8) 44... Ne7 45. Rgb8 Bxe3+ {[%mdl 64] Double Attack} 46. Kg2 {Accuracy: White = 52%, Black = 81%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.39"]
[White "Asadli, Vugar"]
[Black "Pogosyan, Stefan"]
[Result "1-0"]
[ECO "A28"]
[WhiteElo "2538"]
[BlackElo "2455"]
[Annotator "TA"]
[PlyCount "123"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,123,31,34,46,48,47,48,46,37,50,49,60,43,83,85,244,235,227,238,251,241,239,236,276,267,267,245,220,196,210,214,201,213,206,211,208,197,202,188,192,170,220,213,416,241,218,235,181,166,197,44,51,9,9,0,3,0,0,0,161,160,163,162,179,163,151,133,404,374,638,0,0,0,0,0,0,0,17,0,0,0,0,0,0,-54,-52,-147,-64,-212,0,-475,0,-331,1653,1461,7597,2367,7708,5728,29970,29970,29972,29970,29969,29970]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 Re8 7. Qf5 d6 8. Nxf6+ Qxf6 9. Qxf6 gxf6 10. a3 Bc5 11. b4 Bb6 {A28: English Opening: Four Knights Variation.} 12. Bb2 a5 13. b5 Ne7 {White is slightly better.} 14. d4 Ng6 {[#]} 15. Be2 $5 $146 {[%mdl 8] New and interesting.} ({Predecessor:} 15. a4 Bg4 16. O-O-O exd4 17. Bxd4 Bxd4 18. Rxd4 Bxf3 19. gxf3 b6 20. f4 Ne7 21. Bg2 {1-0 (34) Grischuk,A (2785)-Giri,A (2737) Elancourt 2013}) 15... Bg4 16. Rd1 f5 17. h3 $36 {[%mdl 2048] White has strong initiative.} Bh5 $2 (17... Bxf3 $16 18. Bxf3 e4) 18. g4 $1 $18 {[%cal Rg4h5]} fxg4 19. Ng5 Nf8 20. c5 $1 {[%cal Rc5b6]} (20. Bxg4 Bxg4 21. hxg4 exd4 $14) (20. hxg4 $6 Bg6 $16) 20... dxc5 21. Ne4 (21. dxe5 $6 Bg6) 21... Nd7 22. dxc5 Bg6 23. cxb6 ({Weaker is} 23. Rxd7 Bxe4 24. cxb6 Bxh1 $16) 23... Bxe4 {[#]} 24. f3 $1 {[%mdl 512]} gxf3 (24... Bxf3 25. Bxf3) 25. Rg1+ Kf8 26. Rxd7 Bf5 27. Rxc7 fxe2 28. a4 $1 {White wants to mate with Ba3+.} Bg6 29. Ba3+ Kg7 30. Be7 ({Much less strong is} 30. Kxe2 $6 Rab8 $16) 30... f6 {intending ...Kf7.} 31. Rxb7 ({Don't play} 31. Kxe2 $6 Kf7) 31... Rab8 $2 (31... Kf7) 32. Ra7 (32. Rc7 $142) 32... Kh6 33. Bc5 Red8 {...Rd1+ is the strong threat.} 34. Rxg6+ Kxg6 35. Kxe2 $2 {[%mdl 4096] Endgame KRR-KRB} ({White has to play} 35. Rc7 $1 $18) 35... Kf5 $14 36. Rc7 {[%mdl 1024] Strongly threatening b7. White has compensation.} Ke6 $1 37. e4 {[%csl Gc5][%cal Rc7e7]} Rd7 38. Rc6+ Kf7 39. Be3 h5 $2 (39... Rg8 $11) 40. Rc7 $18 Ke6 41. Ra7 $1 Rc8 42. b7 Rb8 43. Ra6+ Kf7 $2 {[%mdl 8192]} (43... Ke7 $16) 44. Rxa5 Rdxb7 $2 (44... Rbxb7 45. b6 Rd8) 45. Ra6 $2 ({Only move:} 45. Ra7 $18 {Black must now prevent Rxb7+.} Ke6 46. Ra6+ Kf7 47. Kd3) 45... Rd7 $11 46. Rc6 Ra8 47. Rc4 Ke6 48. Bb6 f5 {With the idea ...fxe4.} 49. Rc6+ Kf7 50. a5 fxe4 51. a6 Rd3 {aiming for ...Rb3.} 52. Be3 (52. a7 $11 Rb3 53. Bc5) 52... Rb3 $15 53. Rb6 ({White should try} 53. Rc5 $1 $15) 53... Rb2+ (53... Rg8 $1 $17 {[%cal Rg8g2]} 54. Bf2 Rb2+ 55. Ke3 Rg2 56. Kxe4 Rbxf2) 54. Kd1 (54. Ke1 $15) 54... Rb3 $2 (54... Rd8+ $1 $19 55. Kc1 Ra2 56. Rb7+ Ke6) 55. Bc5 $2 {[%mdl 8192]} (55. Ke2 $1 $11 {and White stays safe.}) 55... Rc3 $2 ({Black should play} 55... Rg8 $1 $19 {[%cal Rg8g2] Threatens to win with ...Rg2.} 56. Rd6 Rxb5 57. Rd7+ Ke6 58. Rd6+ Kf5) 56. Bd6 $2 {[%mdl 8192]} (56. Rc6 $11) 56... Rxh3 $4 {[%mdl 8192] [#]} (56... Rac8 $19 57. Ke2 Rxh3) 57. Rb8 $1 $18 Rxb8 58. Bxb8 Ra3 {[#]} 59. a7 $1 h4 60. b6 {[%cal Bb5b6,Bb6b7][%mdl 32] White mates.} Ke6 61. b7 h3 {[#]} 62. Bxe5 $1 {[%mdl 576] Promotion. What a fight! Accuracy: White = 72%, Black = 49%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.40"]
[White "Moroni, Luca Jr"]
[Black "Soumya, Swaminathan"]
[Result "1-0"]
[ECO "D43"]
[WhiteElo "2536"]
[BlackElo "2369"]
[Annotator "TA"]
[PlyCount "111"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,111,8,31,22,56,16,22,16,37,34,32,21,14,18,8,7,7,9,6,12,14,0,37,36,29,11,35,30,45,30,42,36,72,33,19,12,71,71,70,39,37,27,43,49,64,66,64,67,73,75,72,58,72,51,59,39,38,54,54,40,30,39,51,41,33,22,37,38,46,39,39,40,154,152,132,161,156,168,144,139,141,165,150,150,225,205,227,227,360,359,357,352,352,351,390,373,527,494,1481,1085,29963,12835,5314,5307]} 1. c4 c6 2. d4 d5 3. Nf3 Nf6 4. Nc3 e6 5. Qb3 Qb6 6. Qc2 {D43: Semi-Slav: 5 Bg5 h6.} Nbd7 7. e3 Qc7 8. b3 {The position is equal.} Bd6 9. Bb2 b6 10. Bd3 Bb7 11. O-O O-O 12. Rac1 Rac8 13. Qe2 Qb8 14. h3 {[#]} Rfe8 $146 ({Predecessor:} 14... c5 15. cxd5 exd5 16. Nb5 Be7 17. Ne5 a6 18. Na3 cxd4 19. exd4 Rfe8 20. Nc2 b5 21. Ne3 Nf8 {1-0 (35) Shishkin,V (2475)-Pinski,J (2444) Koszalin 1999}) 15. Bb1 c5 16. cxd5 exd5 17. Rfd1 g6 18. Bd3 cxd4 19. Nxd4 Nc5 20. Bb1 Nce4 21. Ndb5 {Black must now prevent Bxe4.} Bh2+ 22. Kh1 Be5 (22... Ng5 $11 {remains equal.}) 23. Nxe4 $16 dxe4 24. Rxc8 Bxc8 25. Nd4 {[#] Strongly threatening Nc6.} Bd7 26. b4 b5 27. a3 Rc8 28. Nb3 Be6 {[#]} 29. Nc5 $1 {[%cal Rc5a6]} Bc4 30. Qd2 Re8 31. Bc3 h5 32. Qb2 Bxc3 33. Qxc3 Qe5 $1 {[%cal Re5c3]} 34. Rd4 Bd5 $1 35. Qd2 Re7 36. Kg1 Kg7 37. Bc2 Rc7 38. Bd1 a5 39. Be2 axb4 40. axb4 Ra7 {Black is on the road to losing.} (40... Bc6 $14) 41. Bxb5 Ra1+ 42. Bf1 Bc6 {Threatens to win with ...Bb5.} 43. Qb2 $36 {[%mdl 2048] Keeping Black busy.} Re1 44. Qc3 Rb1 {aiming for ...Bb5.} 45. Qc2 Ra1 {intending ...Bb5.} 46. Rd1 Rxd1 (46... Ra3 $16 47. Qc1 Ra8) 47. Qxd1 $18 Nd5 48. b5 Nc3 (48... Bxb5 $142 49. Bxb5 Nc7) 49. Nd7 Bxd7 50. Qxd7 {And now b6 would win.} Qc5 51. Qe8 h4 52. Qd8 {b6 is the strong threat.} Qd5 (52... Nd5 {keeps fighting.} 53. Qxh4 f5) 53. Qc7 Qd2 (53... Nxb5 $142 54. Qa5 Kh6 55. Bxb5 Qe5) 54. Bc4 Qe1+ 55. Kh2 Qxf2 56. b6 {Accuracy: White = 92%, Black = 63%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.41"]
[White "Aditya Mittal"]
[Black "Sengupta, Deep"]
[Result "1/2-1/2"]
[ECO "A40"]
[WhiteElo "2427"]
[BlackElo "2534"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,88,52,77,35,77,36,53,46,44,43,41,45,47,39,41,40,38,38,31,25,67,39,63,37,82,84,65,65,85,67,88,97,88,90,84,60,133,58,141,114,147,157,138,102,99,84,147,129,342,287,370,507,506,503,522,481,1217,1217,1160,1205,1186,1113,1529,1668,1482,1001,334,83,82,0,0,0,8,0,0,0,0,0,0]} 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. d5 d6 5. e4 e6 6. Bd3 Ne7 7. h3 {A43: Schmid Benoni.} a6 8. a4 O-O 9. Nf3 {White is slightly better.} Nd7 10. O-O exd5 11. exd5 Ne5 12. Nxe5 Bxe5 13. Bg5 f6 14. Bd2 Bf5 15. Qf3 Qd7 16. a5 Rae8 17. Rfe1 (17. Rab1 $5) 17... Bxd3 18. Qxd3 g5 19. Rab1 Ng6 20. Ne4 Re7 21. b4 cxb4 22. Bxb4 g4 23. hxg4 Nf4 (23... Rg7 $1 $14) 24. Qd1 (24. Qf3 $16) 24... Rg7 {[#]} (24... f5 $14 25. Ng3 (25. gxf5 Rg7 $11) 25... fxg4) 25. Bd2 $1 $16 Rxg4 26. Bxf4 $1 Rxf4 27. g3 Rg4 28. c5 h5 (28... dxc5 $142 29. Qf3 (29. Nxc5 Qf5 $14) 29... Bd4) 29. Qf3 ({Don't take} 29. cxd6 $6 Qf5 $14) ({Weaker is} 29. Nxd6 Bxg3 30. Kf1 (30. fxg3 $2 Rxg3+ 31. Kf2 Qh3 $19) (30. Nxb7 $2 Bh4+ 31. Kf1 Rf4 $19) 30... Bxd6 $17) 29... Qg7 $2 (29... Rg7 $16) 30. Kg2 $18 ({Not} 30. cxd6 f5 $17) 30... h4 {[#] And now ...f5 would win.} 31. Rxb7 Qg6 32. c6 hxg3 33. fxg3 {Strongly threatening c7.} f5 (33... Rc8 $142) 34. c7 Bxg3 35. Nxg3 f4 36. Qe4 Rxg3+ 37. Kf2 Qxe4 38. Rxe4 {[%mdl 4096] Endgame Rc4 is the strong threat. KRR-KRR} Rc3 39. Re7 $2 (39. Re6 $18 {and White stays clearly on top.} Rc2+ 40. Kf3 Rc3+ 41. Ke4) 39... f3 $16 40. Rg7+ (40. Rb2 $16 {aiming for Rd7.} Rc8 41. Rd7 R3xc7 42. Rxd6) 40... Kh8 $11 {The position is equal.} 41. Rh7+ Kg8 42. c8=Q Rfxc8 43. Rbg7+ Kf8 44. Rf7+ Kg8 $1 {White really could win this. Accuracy: White = 66%, Black = 54%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.22"]
[Round "4.42"]
[White "Kovalevskaya, Ekaterina"]
[Black "Sadhwani, Raunak"]
[Result "0-1"]
[ECO "B08"]
[WhiteElo "2407"]
[BlackElo "2522"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,84,38,53,19,30,13,39,39,42,40,46,51,50,49,49,45,43,0,0,-8,0,-8,-4,-23,-22,-19,-26,-32,-27,-116,-113,-129,-123,-187,-180,-176,-178,-148,-171,-175,-162,-188,-185,-226,-208,-232,-175,-223,-204,-283,-282,-439,-444,-741,-741,-837,-788,-2214,-2231,-2116,-1898,-2043,-1974,-5126,-5081,-6203,-6083,-5126,-5114]} 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. g3 O-O 6. Bg2 c6 7. O-O Bg4 8. h3 Bxf3 9. Qxf3 Nbd7 10. Be3 {A49: 1 d4 Nf6 2 Nf3 g6 3 g3: Anti-King's Indian systems.} e5 11. Rad1 Qc7 {[#]} 12. dxe5 $146 {White is slightly better.} ({Predecessor:} 12. Qe2 a6 13. Rd2 b5 14. a3 Nb6 15. b3 a5 16. dxe5 dxe5 17. Bc5 Rfd8 18. Rfd1 {0-1 (57) Perez Cristobal,A (1728)-Hernandez Gutierrez,J (1854) Madrid 2012}) 12... Nxe5 13. Qe2 $1 b5 14. b3 {Threatens to win with Qd2.} Rfe8 15. Qd2 Bf8 $1 16. Rfe1 Ned7 17. Bh6 ({Better is} 17. Bf4 $14) 17... Bxh6 $11 18. Qxh6 Re6 19. Ne2 Rae8 20. Nd4 Re5 {[%cal Rf6e4]} 21. Qf4 d5 {[%cal Rd5e4]} 22. Nf3 Nh5 23. Qh6 {Black continues to play with concentration.} (23. Qd2 $11 {keeps the balance.} Rxe4 24. Rxe4 Rxe4 25. Nd4) 23... Rxe4 $17 24. Rxe4 dxe4 25. Ng5 (25. Qe3 $17 {was worth a try.}) 25... Ndf6 $19 {[#] And now ...e3 would win.} 26. Bxe4 Rxe4 ({Worse is} 26... Nxe4 27. Qxh7+ Kf8 28. Qh6+ Kg8 29. Qh7+ Kf8 30. Qh6+ Kg8 31. Qh7+ $11) 27. Nxe4 Nxe4 28. Qe3 Nhf6 29. Kg2 Kg7 30. Re1 b4 31. Qf3 Qe5 32. Re3 a5 33. Qd1 Qc5 34. Qd3 {[#]} (34. Qe2 $142 Nc3 35. Re5) 34... Nxf2 $1 {[%mdl 512] Black is clearly winning.} 35. Kxf2 {[%mdl 4096] Endgame KQR-KQN} (35. Qe2 $142 Nd1 36. Rd3) 35... Nd5 {[%mdl 64] Pin} 36. Kf3 Nxe3 37. Qxe3 Qxe3+ 38. Kxe3 {KP-KP} f5 39. Kd4 Kf6 40. h4 h6 41. c3 g5 42. hxg5+ hxg5 {Accuracy: White = 46%, Black = 93%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.1"]
[White "Mamedov, Rauf"]
[Black "Bharath Subramaniyam H"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2643"]
[BlackElo "2402"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,97,12,6,0,15,15,27,10,75,68,77,55,49,42,73,72,75,64,73,31,72,64,77,48,48,48,48,49,50,45,44,52,62,21,28,17,53,49,52,47,47,47,58,39,45,50,77,83,81,69,130,137,133,133,131,131,160,155,312,299,303,302,253,304,387,350,377,364,310,297,560,304,695,695,629,587,5317,5310,5310,5310,5202,5097]} 1. e4 c5 2. Nf3 e6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Na3 {[%cal Bb1a3,Ba3b5,Bb5d6][%mdl 32]} Nc6 7. Nb5 Qd8 8. dxc5 Bxc5 9. Qxd8+ Kxd8 10. b4 {B22: Sicilian: 2 c3.} Bb6 11. Nd6 Ke7 12. Nc4 {Strongly threatening b5.White has an edge.} Bc7 (12... Ne4 $11 {keeps the balance.}) 13. b5 $16 Na5 14. Ba3+ Ke8 15. Nd6+ Bxd6 $1 16. Bxd6 b6 17. Bb4 Bb7 18. Ne5 {[#]} Rc8 $146 ({Predecessor:} 18... Rd8 19. Bxa5 bxa5 20. Nc4 a4 21. Na5 Ba8 22. c4 Ne4 23. Be2 Nc5 24. Bf3 Bxf3 25. gxf3 {1-0 (39) Mestrovic,Z (2328)-Savic,M (2314) Senj 2008}) 19. c4 Ne4 20. f3 Nc5 21. Be2 f6 22. Ng4 Kf7 23. Kf2 Ba8 24. Rhd1 Nab7 25. Rd2 Rhd8 26. Rad1 Ke7 27. Rd3 Nd6 28. Ra3 Rd7 29. Ne3 Rcc7 30. Nc2 e5 31. Na1 Ke6 32. Nb3 Nxb3 33. axb3 ({Much worse is} 33. Rxb3 Nxc4 34. Rxd7 Kxd7 $11) 33... e4 (33... Nf5 $14) 34. Ra2 exf3 35. gxf3 ({Of course not} 35. Bxf3 $6 Bxf3 36. gxf3 (36. Kxf3 Nxc4 {[%mdl 64] Discovered Attack} 37. Rxd7 Ne5+ {[%mdl 64] Double Attack} 38. Ke2 Rxd7 $17) 36... Nf5 $11) 35... Nf5 36. Rxd7 Rxd7 37. c5 Bd5 $2 {This costs Black the game.} (37... bxc5 $16 {was worth a try.} 38. Bxc5 Bd5) 38. c6 Rc7 39. Bc4 Bxc4 40. bxc4 $18 {[%mdl 4096] Endgame KRB-KRN} h5 41. Re2+ Kf7 42. Rd2 {Rd7+ is the strong threat.} Ke8 43. Rd1 a6 $2 (43... h4 44. Ke2 a6 45. bxa6 Ra7) 44. bxa6 {[%cal Bb5a6,Ba6a7][%mdl 32]} Rxc6 $2 (44... Ra7 45. c5 bxc5 46. Bxc5 Rxa6) 45. a7 {White is clearly winning.} Rc8 {[#] intending ...Ra8.} 46. c5 $1 {[%mdl 512]} b5 (46... bxc5 47. Bxc5) 47. Ba5 Ke7 {[#]} 48. Rd8 $1 {[%mdl 576] Promotion} Rxd8 49. Bxd8+ {Accuracy: White = 85%, Black = 53%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.2"]
[White "Aleksandrov, Aleksej"]
[Black "Adhiban, B.."]
[Result "1/2-1/2"]
[ECO "D30"]
[WhiteElo "2592"]
[BlackElo "2654"]
[Annotator "TA"]
[PlyCount "25"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,25,24,31,17,26,10,17,9,27,4,13,11,7,12]} 1. d4 d5 2. c4 e6 3. Nf3 c6 4. e3 Nd7 5. Bd3 Ngf6 6. O-O dxc4 7. Bxc4 Bd6 8. Nbd2 {D30: Queen's Gambit Declined: Systems without Nc3.} O-O 9. Be2 c5 10. Nc4 Bc7 11. b3 b6 {[#]} 12. Bb2 $146 ({Predecessor:} 12. a4 Bb7 13. Ba3 Ne4 14. Rc1 Qf6 15. Ncd2 Rac8 16. Nxe4 Bxe4 17. Nd2 Bb7 18. Bf3 {0-1 (110) Kozul,Z (2612)-Adhiban,B (2682) Zagreb 2018}) 12... Bb7 13. Rc1 {An uneventful encounter.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.3"]
[White "Petrosyan, Manuel"]
[Black "Sethuraman, S.P."]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "2590"]
[BlackElo "2641"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,81,-5,33,33,34,28,41,36,35,7,26,11,35,29,25,26,89,80,89,84,93,87,93,95,141,81,96,51,55,54,188,193,184,115,120,143,120,68,159,191,195,183,191,192,176,147,136,140,226,216,281,285,281,274,275,2,3,7,50,43,50,46,77,7,256,256,256,237,237,237,280,280,486,463]} 1. c4 e6 2. Nc3 d5 3. d4 c6 4. e3 Nf6 5. b3 g6 6. Bd3 {D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+ Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6.} Bg7 7. Ba3 {[#]} Qa5 $146 ({Predecessor:} 7... Qc7 8. Nf3 Nbd7 9. O-O c5 10. Na4 b6 11. dxc5 Nxc5 12. Nxc5 bxc5 13. Bb2 O-O {1-0 (47) Milasius,T-Vaitkus,M (1225) Klaipeda 2015}) 8. Qc1 {White is slightly better.} Na6 9. Nge2 dxc4 10. bxc4 ({Don't play} 10. Bxc4 b5 $17) 10... c5 11. O-O O-O 12. Nb5 Nb4 (12... Bd7 $11) 13. Bxb4 $1 $16 cxb4 14. a3 Bd7 15. axb4 Qxb4 16. Nxa7 e5 17. c5 ({Of course not} 17. dxe5 $6 Ng4 $15) (17. Rb1 $142 $1 {[%cal Rb1b4]} Qa5 18. Nb5) 17... exd4 18. exd4 Nd5 $1 19. Bc4 Be6 (19... Bh6 $14 20. Qc2 Bf5) 20. Rb1 $1 $18 {[%cal Rb1b4]} Qa4 21. Nb5 (21. Bxd5 $1 $18 Bxd5 22. Nb5) 21... Nf4 $16 22. Qxf4 Qxc4 23. Nec3 (23. Rfe1 $16) 23... Rad8 (23... Bf5 $14) 24. Rfd1 Bd7 25. h3 Bc6 {[#]} 26. Qd2 $1 Be5 27. Qd3 Qxd3 28. Rxd3 Bb8 (28... Bxb5 $16 29. Nxb5 Rd5) 29. d5 Rfe8 30. Rdd1 Bd7 31. d6 Re5 {[#]} 32. Nd5 $2 ({Only move:} 32. Rd5 $1 $18 {[%cal Rd5e5]} Rxd5 33. Nxd5) 32... Bc6 $11 33. Ne7+ Kg7 {And now ...Bxb5 would win.} 34. Nxc6 bxc6 35. Nc7 $36 {[%mdl 2048] White fights for an advantage.} Ba7 36. Rb6 (36. Na6 $16) 36... Kf6 $2 (36... Bxb6 $11 {and Black stays safe.} 37. cxb6 Ra5) 37. Rxc6 $18 {Hoping for Na6.} Rxc5 38. Ra6 Bb8 {[#]} 39. Ne8+ $1 {[%mdl 512]} Ke6 (39... Rxe8 40. d7+) 40. Re1+ Re5 $2 (40... Kf5 41. Re7 Rc1+ 42. Kh2 Kg5) 41. Nc7+ {Accuracy: White = 73%, Black = 54%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.4"]
[White "Riazantsev, Alexander"]
[Black "Smirin, Ilia"]
[Result "1/2-1/2"]
[ECO "E73"]
[WhiteElo "2639"]
[BlackElo "2615"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,59,41,57,57,57,55,75,0,57,57,58,57,80,64,75,72,75,66,72,71,105,93,93,87,96,100,98,97,83,66,72,72,73,61,71,65,73,50,73,68,101,71,83,81,66,49,75,46]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Be3 e5 7. d5 Na6 8. g4 {E73: King's Indian: Averbakh Variation without 6...c5.} Nc5 9. f3 $1 h5 10. h4 ({White should try} 10. g5 $16) 10... a5 ({Better is} 10... hxg4 $11 11. Bxc5 gxf3 12. Bxf3 dxc5) 11. g5 $14 Nfd7 12. Nh3 Nb6 13. Qd2 a4 14. Nf2 Bd7 15. O-O-O {[#]} Qe7 $146 ({Predecessor:} 15... Nc8 16. Kb1 Qe7 17. Rhg1 Re8 18. Bf1 Rd8 19. Rg3 Rb8 20. Qc2 Nb6 21. Be2 Ra8 {1-0 (56) Halvax,G (2424)-Schiestl,J (2118) Austria 2019}) 16. Nb5 Qd8 17. Kb1 Re8 18. Na3 Bf8 19. Rc1 c6 20. Rhd1 Qc7 21. Qb4 Bc8 22. Bf1 Nbd7 23. Qd2 Rd8 24. Bh3 Rb8 25. Qe1 Nb6 26. Bf1 Bd7 27. Be2 Be8 28. Rc2 Nbd7 29. Bf1 Ra8 30. Qb4 {Accuracy: White = 87%, Black = 80%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.5"]
[White "Paravyan, David"]
[Black "Yilmaz, Mustafa"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2629"]
[BlackElo "2607"]
[Annotator "TA"]
[PlyCount "35"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,35,27,6,27,8,22,14,23,-2,8,0,0,-43,-35,-31,-23,-33,1,-87,-28,-24,-11,-18,-24,-33,-27,-28]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Nb3 e6 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} 7. g4 b5 8. a3 Bb7 {The position is equal.} 9. Qe2 Nc6 {[%cal Bb8c6,Bc6e5,Be5c4][%mdl 32] [#]} 10. Bf4 $146 ({Predecessor:} 10. Bg2 Be7 11. O-O Rc8 12. g5 Nd7 13. f4 Nc5 14. Be3 Nxb3 15. cxb3 O-O 16. Rad1 {1-0 (58) Annaberdiev,M (2446)-Bubalovic,D (2268) Skopje 2015}) 10... Rc8 11. Bg2 Nd7 12. O-O-O Nce5 13. Kb1 Nc4 14. g5 (14. Na2 $11 {remains equal.}) 14... e5 (14... Nxa3+ $1 $17 15. bxa3 Rxc3) 15. Bd2 $11 Ndb6 16. Bh3 Rc7 17. Rhg1 Be7 18. Rg3 {Accuracy: White = 77%, Black = 91%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.6"]
[White "Artemiev, Vladislav"]
[Black "Idani, Pouya"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2728"]
[BlackElo "2577"]
[Annotator "TA"]
[PlyCount "151"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,151,14,22,16,43,26,24,17,45,17,12,6,13,10,22,14,26,26,29,35,24,0,64,53,46,53,47,12,90,100,98,102,105,86,88,98,90,72,72,76,72,70,66,72,86,81,102,101,104,84,89,87,91,83,90,62,68,68,65,62,122,104,115,110,93,44,40,47,45,0,0,0,64,19,63,63,64,64,63,63,63,63,56,47,47,47,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,52,0,0,0,0,0,0,0,0,0,0,0,0,0,52,52,52,52,52,52,52,52,52,0,0,0]} 1. Nf3 Nf6 2. g3 b5 3. Bg2 Bb7 4. O-O c5 5. Na3 {[%cal Bb1a3,Ba3c4,Bc4e5][%mdl 32]} b4 6. Nc4 {[#] A05: Réti Opening: 1 Nf3 Nf6.} d5 $146 ({Predecessor:} 6... e6 7. b3 d5 8. Nce5 Bd6 9. Bb2 O-O 10. a3 a5 11. axb4 axb4 12. Rxa8 Bxa8 {½-½ (41) Petrosian,T (2606)-Harmon Vellotti,L (2468) chess.com INT 2018}) 7. Nce5 {aiming for Ng5.} Nbd7 8. c4 {White has an edge.} e6 9. d4 {next Ng5 is good for White.} Be7 10. dxc5 Nxc5 11. a3 a5 12. Nd4 O-O 13. Ndc6 Qc7 14. Nxe7+ Qxe7 15. Be3 Rfd8 ({Black should play} 15... bxa3 $11 16. Rxa3 Rfd8) 16. axb4 $14 axb4 17. Rxa8 Bxa8 18. Qd4 Nfe4 (18... Nb3 $11 {keeps the balance.} 19. Qf4 h6) 19. cxd5 $16 exd5 20. Nd3 {[%cal Rd3c5]} Ne6 21. Qxb4 Qxb4 22. Nxb4 d4 23. Bc1 N4c5 24. Rd1 Nb3 25. Bd2 Bxg2 26. Kxg2 h6 27. Nc6 Ra8 28. Bb4 Kh7 29. Ne5 f6 30. Nf3 Rc8 31. Ba3 g5 32. h3 Kg6 33. e3 dxe3 34. Rd3 Rc2 (34... Rb8 $14) 35. Rxe3 Ned4 36. Nxd4 Nxd4 {[%mdl 4096] Endgame KRB-KRN} 37. Bb4 Nf5 38. Rb3 h5 39. Kf1 Rc1+ 40. Kg2 Rc2 41. Ba5 g4 42. Bb6 Nd6 43. Rb4 Nc4 44. Bd4 Kf5 45. b3 Ne5 46. Rb6 Rd2 47. Rd6 gxh3+ 48. Kxh3 Ng4 49. Kg2 $1 Nxf2 {[#] Threatens to win with ...Ne4+.} 50. Rxf6+ Kg5 {Hoping for ...Ng4+.} 51. Be3+ Kxf6 52. Bxd2 $14 {KB-KN} Ne4 53. Be3 Ke5 54. Kf3 Nc3 55. Bg5 Ne4 56. Bh6 Kf5 57. Bf4 Nc3 58. Bc7 Nb5 59. Bb6 Nc3 60. Bd8 Nb5 61. Ke3 $1 Ke5 62. Bg5 Na3 63. Kd3 Kd5 64. Bd8 (64. Be3 $14) 64... Nb5 $11 65. Bf6 Ke6 66. Bb2 Kd5 67. Bc3 Nd6 68. Be1 Nb5 69. Bf2 Nd6 70. Ke3 Ke5 (70... Kc5 $11) 71. b4 Nc4+ 72. Kf3 Nd6 73. Bb6 {[#] And now Bc7 would win.} Nb5 74. Ke3 Kd5 75. Bd8 (75. Kf4 $14 Nc3 76. Bc5) 75... Nd4 76. Ba5 {Accuracy: White = 89%, Black = 87%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.7"]
[White "Puranik, Abhimanyu"]
[Black "Sjugirov, Sanan"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "2597"]
[BlackElo "2674"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,56,0,0,3,0,0,0,0,0,11,3,10,-7,-2,-2,-14,-12,0,0,0,-16,0,0,14,0,0,0,0,0,0,0,0,-7,-4,-404,-8,-8,-8,-2,0,-29993,333]} 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. O-O e5 5. d3 Ne7 6. e4 O-O 7. exd5 Nxd5 8. Re1 Nc6 9. Nc3 {Threatening Nxd5.} Nde7 {A07: Réti Opening: New York and Capablanca Systems.} 10. Rb1 a5 11. b3 Nf5 {The position is equal.} 12. Nb5 Re8 13. Bb2 a4 {[#]} 14. bxa4 $146 ({Predecessor:} 14. c4 axb3 15. axb3 Nd6 16. Ra1 Rxa1 17. Bxa1 Nxb5 18. cxb5 Nd4 19. Bxd4 exd4 20. Rxe8+ Qxe8 {½-½ (31) Carlsen,M (2827)-Vidit,S (2702) Douglas 2017}) 14... Rxa4 15. a3 Ra8 16. c4 Nd6 17. Qb3 Bf5 18. Rbd1 Qd7 19. a4 Rad8 20. c5 Be6 21. Qa3 Nc4 $1 {[%cal Rc4a3]} 22. dxc4 Qxd1 23. Nxc7 (23. Rxd1 $2 Rxd1+ 24. Bf1 Bh3 $19) 23... e4 $36 {[%mdl 2048] Black has good play.} 24. Nxe8 (24. Rxd1 $2 Rxd1+ 25. Bf1 Bh3 $19) 24... exf3 25. Bc3 $2 {[%mdl 8192] [#]} (25. Rxd1 $11 Rxd1+ 26. Bf1 Bxc4 27. Qa1 Rxa1 28. Bxa1 Bxf1 29. Bxg7) 25... Rd3 $2 (25... Nd4 $19 {( -> ...Ne2+)} 26. Bf1 (26. Rxd1 $2 {loses.} Ne2+ {[%mdl 64] Double Attack, Discovered Attack} 27. Kf1 Rxd1+ 28. Be1 Bxc4 $19) (26. Nf6+ $2 Bxf6 27. h3 Nc2 $19 {[%mdl 64] Double Attack}) 26... Nc2 27. Nxg7 (27. Rxd1 $2 Rxd1 28. h4 Nxa3 $19) 27... Nxe1 28. Nxe6 Nc2 29. Nxd8 Nxa3 30. Nxb7 Nb1) 26. Rxd1 $11 Rxd1+ 27. Bf1 {aiming for Qb3.} Bxc3 (27... Bxc4 $5 28. Qa1 $8 Rxa1 29. Bxa1 Bxf1 30. Bxg7 Ba6 $11) 28. Qb3 $2 {[%mdl 8192] [#]} ({Wrong is} 28. Qxc3 $2 Nd4 $19) (28. h3 $11 Nd4 29. Nf6+ Kg7 30. Ne8+ Kg8 31. Nf6+ Kg7 32. Ne8+ Kg8) 28... Rxf1+ $1 {[%mdl 33280] Accuracy: White = 81%, Black = 90%. . Loss on time!?} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.8"]
[White "Sarana, Alexey"]
[Black "Basso, Pier Luigi"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2656"]
[BlackElo "2600"]
[Annotator "TA"]
[PlyCount "189"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,189,14,18,-14,6,12,41,37,37,31,45,44,48,27,74,76,95,112,114,39,57,32,35,26,28,30,32,33,30,31,33,30,30,31,31,31,54,34,66,35,43,29,42,33,56,42,63,50,58,43,72,55,93,79,83,83,100,28,79,33,33,25,30,33,36,30,28,29,40,33,38,35,37,35,34,36,48,24,24,24,24,24,25,25,25,25,25,25,28,20,17,0,28,28,28,22,22,18,20,18,22,0,28,28,30,38,77,57,58,0,0,0,0,0,0,0,10,16,58,58,58,58,57,56,105,105,107,107,105,105,105,105,105,105,108,108,113,108,113,108,108,101,204,200,204,167,345,337,601,601,1052,1001,1348,1352,1112,412,29980,29981,29981,29972,4694,0,29981,29982,29982,29983,29983,29984,29988,29987,29987,29988,29988,29988,29988,29989,29987,205]} 1. c4 c6 2. e4 d5 3. exd5 cxd5 4. d4 Nf6 5. Nc3 Nc6 6. Bg5 Be6 7. Bxf6 exf6 {is now more promising than 7...gxf6.} 8. c5 {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack.} a6 9. Nge2 {[#]} g6 $146 ({Predecessor:} 9... b6 10. b4 Be7 11. Qa4 b5 12. Qb3 a5 13. Nxb5 axb4 14. Nf4 Qa5 15. Bd3 Rb8 16. Nxd5 {1-0 (40) Yurtaev,L (2485)-Dreev,A (2495) Frunze 1988}) 10. g3 {White is slightly better.} Bg7 11. Bg2 O-O 12. O-O f5 13. Qa4 f4 14. Nxf4 Bxd4 15. Ncxd5 Bxd5 16. Bxd5 (16. Nxd5 $16 {And now Nb6 would win.} Bxc5 17. Rfd1) 16... Qf6 $14 17. Bxc6 bxc6 18. Rad1 Rfd8 19. b4 a5 20. bxa5 Bxc5 21. Rxd8+ Qxd8 22. Qxc6 Qxa5 23. Rc1 Bf8 24. Rc2 Rd8 25. Re2 Qf5 26. Qc2 (26. Kg2 {looks sharper.} Bh6 27. Re4 Bf8 28. a4 Rc8 29. Qd5) 26... Qa5 27. Nd3 Bg7 28. Ne1 Qd5 29. Qb3 Qd6 30. Nf3 Rb8 31. Qa4 Qd8 32. Qe4 Bf6 33. Kg2 Ra8 34. Rc2 Kg7 35. Qc6 (35. Rc7 $16) 35... Ra7 (35... Ra3 $11) 36. Nd2 Qd4 37. Qc4 Qd7 38. Qb3 Qd4 39. Qe3 Qa4 40. Qd3 Rd7 41. Qc4 Qa8+ 42. Qe4 Qa6 43. h4 Re7 44. Qf3 Qa4 45. Nb3 h5 46. Re2 Rc7 47. Qd5 Qa6 48. Rd2 Qa7 49. Kh2 Re7 50. Rc2 Re5 51. Qc6 Re6 52. Qc4 Re1 53. Re2 Rd1 54. Qc2 Rd7 55. Qe4 Re7 56. Qf3 Rc7 57. Rd2 Rc3 58. Qe4 Qa6 59. Rc2 Qc8 60. Rxc3 Qxc3 61. Kg2 (61. Qf4 $14) 61... Qb2 $11 62. Qa4 Qc2 63. Qa5 Qe4+ 64. Kg1 Qb1+ 65. Kh2 Qc2 66. Qd2 Qc4 67. Nc1 Be5 68. Kg1 Bd4 {Black is now going downhill.} 69. Nd3 Bf6 70. Nf4 Bd4 71. Qe2 Qc3 {With the idea ...Qxg3+.} 72. Kh2 Qc5 73. Nd3 Qc6 74. Ne1 Qc5 75. Kg2 Bf6 76. Nf3 Qc6 77. Qd3 g5 (77... Qa4 $16) 78. hxg5 $18 Bxg5 {[#]} 79. a4 $1 {[%cal Ba2a4,Ba4a5,Ba5a6][%mdl 544] a5 is the strong threat.} Bf6 $2 {[#]} (79... Qa8 80. Qb5 Bd8) (79... Qxa4 80. Nxg5) 80. a5 $1 Qa4 $2 (80... h4 81. gxh4 Bxh4) 81. a6 h4 82. Nxh4 Bxh4 83. gxh4 {[%mdl 4096] Endgame KQ-KQ} f5 84. Qg3+ (84. Qd6 $142) 84... Kh7 (84... Kf7 $18 85. Qc7+ Kf6) 85. Qc7+ Kh6 86. Qd6+ Kh7 87. Qc7+ (87. Qe7+ $18 Kh6 88. Qe3+ f4 89. Qb6+ Kh5 90. a7 f3+ {[%mdl 64] Decoy} 91. Kxf3 Qd1+ 92. Ke4 Qe2+ 93. Qe3 Qc4+ 94. Ke5 Qc7+ 95. Ke6) 87... Kh6 $1 88. a7 {White mates.} Qe4+ 89. Kh2 Qxh4+ 90. Kg1 Qg5+ 91. Qg3 Qc1+ 92. Kh2 Qc8 93. Qh3+ Kg5 94. Qg2+ Kf4 95. Qg3+ {Accuracy: White = 89%, Black = 71%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.9"]
[White "Sargsyan, Shant"]
[Black "Jumabayev, Rinat"]
[Result "0-1"]
[ECO "A88"]
[WhiteElo "2594"]
[BlackElo "2646"]
[Annotator "TA"]
[PlyCount "141"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,141,-6,16,0,18,24,27,22,12,16,12,18,20,-12,-15,-18,-13,-15,-6,-42,-33,-51,-43,-70,-67,-67,-22,-48,-35,-36,-24,-37,-27,-29,-27,-27,-17,-41,-29,-96,-112,-146,-145,-150,-110,-101,-108,-119,-167,-152,0,0,-6,-27,0,-50,0,-155,-18,-8,-8,-13,-10,-6,-6,-16,-10,-122,-120,-122,-112,-119,-119,-123,-138,-226,-229,-243,-229,-385,-324,-335,-93,-308,-283,-329,-333,-331,-319,-211,-209,-1242,-1242,-1242,0,0,0,-1242,-1242,-1242,-1098,-1242,-1242,-1242,-1242,-1242,-1242,-1235,-1228,-1220,-1213,-1213,-1206,-1199,-1191,-1184,-1177,-1170,-1170,-1140,-1066,-714,-615,-414]} 1. Nf3 d6 2. d4 f5 3. g3 Nf6 4. Bg2 g6 5. O-O Bg7 6. c4 O-O 7. Nc3 c6 8. d5 e5 9. dxe6 Bxe6 10. Qd3 Nbd7 11. Bf4 {A88: Dutch Defence: Leningrad System: 5 Nf3 0-0 6 0-0 d6 7 Nc3 c6.} d5 12. Ng5 Nc5 {[#]} 13. Qd1 $146 {Strongly threatening Na4.White has an edge.} ({Predecessor:} 13. Nxe6 Nxd3 14. Nxd8 Nxf4 15. gxf4 Rfxd8 16. cxd5 cxd5 17. Nb5 Ne4 18. Rfd1 Rac8 19. Nd4 Rd6 20. e3 {0-1 (46) Sroczynski,M (2267)-Stopa,J (2521) Wroclaw 2014}) 13... d4 14. Na4 Nfd7 15. b4 h6 16. Nxe6 Nxe6 17. Bd6 Re8 18. c5 Nf6 19. Be5 Ne4 20. Bxg7 Kxg7 21. Qc2 Qf6 22. Rad1 Rad8 23. Rd3 h5 24. Nb2 {[#]} a5 $1 {[%mdl 512]} 25. a3 (25. bxa5 N6xc5) 25... axb4 26. axb4 Nc7 27. Nc4 Nb5 28. e3 h4 29. f3 (29. Re1 $11) 29... Nec3 $17 {Threatens to win with ...dxe3.} 30. e4 hxg3 31. hxg3 Qe6 32. Na5 Re7 33. Re1 fxe4 34. fxe4 Rf8 $2 (34... Rf7 $17 35. Qd2 Rh8) 35. Nb3 $1 $11 Qf6 36. Qd2 {[%cal Rb3d4]} Rd8 (36... Nxe4 $5 37. Qf4 Rfe8 $15) 37. Qf4 Qe6 38. Nd2 $2 (38. e5 $11) 38... Nd5 (38... Na3 $1 $17 {[%cal Ra3c2] aiming for ...Nc2.} 39. Qg5 Qe5 40. Qxe5+ Rxe5) 39. Qg5 $1 Rh8 $36 {[%cal Bd8h8,Bh8h5,Bh5e5][%mdl 2080] And now ...Rh5 would win. Black has good play.} 40. Nf3 Nxb4 41. Nxd4 Nxd4 42. Rxd4 {Rd6 is the strong threat.} Rh5 43. Qf4 {[#]} (43. Qd2 $11 {keeps the balance.} Na6 44. Bf3) 43... Nd5 $1 $17 {[%cal Rd5f4]} 44. Qd6 {[#]} Qe5 $1 {[%cal Re5d4]} 45. Qxe5+ Rhxe5 46. Rc1 Nf6 47. Rb4 (47. Kf2 $17 {was called for.}) 47... Nxe4 $19 48. Bxe4 Rxe4 49. Rxe4 $2 (49. Rb2) 49... Rxe4 {[%mdl 4096] Endgame KR-KR} 50. Rb1 Re7 $2 (50... Rc4 $19 {is more deadly.} 51. Rxb7+ Kf6) 51. Kf2 $2 (51. Kg2 $17) 51... Kf6 52. Kf3 Kf5 53. Rb4 Rd7 54. Ke3 Rd5 55. Rxb7 $2 (55. Rf4+ Kg5 56. Rc4) 55... Kg4 56. Kf2 Rd2+ $2 ({Black should play} 56... g5 $19 57. Rb4+ Kh3) 57. Ke3 $11 Rd5 $2 {[%mdl 8192]} (57... Rc2 $11) 58. Kf2 $1 $19 g5 {Black is clearly winning.} 59. Rb2 Kh3 60. Rc2 g4 61. Rc1 Rf5+ 62. Kg1 Kxg3 63. Rc2 Rd5 {[%cal Rd5d1]} 64. Rc3+ Kf4 65. Kf2 Rd2+ 66. Ke1 Rd4 67. Ke2 Ke4 68. Rc1 Kd5 69. Ke3 {[#]} Rc4 $1 70. Rh1 Rxc5 71. Rh5+ {Accuracy: White = 63%, Black = 80%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.10"]
[White "Rakhmanov, Aleksandr"]
[Black "Vaibhav, Suri"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2645"]
[BlackElo "2591"]
[Annotator "TA"]
[PlyCount "44"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,44,8,13,12,-2,0,-18,-5,-40,3,3,3,0,-4,-36,-15,-21,-2,-11,-4,-5,-7,-27,-15,-28,-26,-28,0,0,0,0,0]} 1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. b3 c5 5. Bb2 Nc6 6. cxd5 exd5 7. Bb5 Bd6 8. O-O O-O {A13: English Opening: 1...e6.} 9. h3 {[#]} Na5 $146 ({Predecessor:} 9... Re8 10. d4 cxd4 11. Nxd4 Bc7 12. Nd2 Qd6 13. N2f3 Bd7 14. Be2 a6 15. Nc2 Ne4 16. Bd3 {½-½ (36) Karjakin,S (2748)-So,W (2763) Riga 2019}) 10. Be2 Re8 11. d3 d4 12. exd4 cxd4 13. Bxd4 Nc6 14. Bxf6 Qxf6 ({Of course not} 14... gxf6 $6 15. d4 $14) 15. Nbd2 Bf5 16. Ne4 Bxe4 17. dxe4 Rxe4 18. Bb5 Nd4 19. Nxd4 Rxd4 20. Qe2 Rd8 {[#] White must now prevent ...a6.} 21. Rad1 Bc5 {Strongly threatening ...Rxd1.} 22. Rxd4 Bxd4 {An uneventful encounter. Accuracy: White = 90%, Black = 79%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.11"]
[White "Shimanov, Aleksandr"]
[Black "Abdusattorov, Nodirbek"]
[Result "1/2-1/2"]
[ECO "D32"]
[WhiteElo "2587"]
[BlackElo "2644"]
[Annotator "TA"]
[PlyCount "112"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,112,11,0,0,-20,19,27,33,32,25,25,32,-16,-36,-58,-50,-78,-66,-94,-80,-79,-78,-93,-43,-42,-46,-94,-97,-139,-106,-102,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-16,-16,-16,-16,-16,-16,-16,-16,-16,-8,-8,-8,-8,-8,-8,-8,-8,0,-8,0,-8,0,0,0,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 e6 2. Nc3 d5 3. d4 c5 4. e3 Nf6 5. Nf3 Nc6 6. a3 dxc4 7. Bxc4 a6 8. O-O b5 9. Ba2 Bb7 10. d5 exd5 {D40: Queen's Gambit Declined: Semi-Tarrasch with 5 e3.} 11. Nxd5 Be7 12. e4 O-O {White has an edge.} 13. Bf4 c4 14. Re1 Rc8 {[#]} 15. Nxe7+ $146 ({Predecessor:} 15. Qd2 Nxd5 16. exd5 Nb8 17. Rad1 Bf6 18. Bb1 g6 19. Ne5 Nd7 20. Nc6 Bxc6 21. dxc6 {0-1 (53) Kozionov,K (2458)-Vorobiov,E (2566) Moscow 2019}) 15... Nxe7 16. Qc2 Ng6 17. Rad1 {[#]} Qb6 $1 18. Bg5 Rfe8 {[%cal Re8e4]} 19. Bxf6 Qxf6 20. Bb1 Rcd8 21. Rxd8 Rxd8 22. Qc3 Nf4 23. Qxf6 gxf6 24. Kf1 {[#]} Nd3 (24... f5 $1 $17 {[%mdl 512]} 25. Bc2 (25. exf5 Bxf3) 25... Kg7) 25. Rd1 $11 {The position is equal.} Bxe4 26. Ne1 $1 Kg7 27. Bxd3 cxd3 {[%mdl 4096] Endgame KRB-KRN} 28. f3 Bg6 {Threatens to win with ...d2.} 29. Rd2 Kh6 30. Kf2 {[#]} b4 $1 {[%mdl 512]} 31. axb4 Rd4 32. g3 Rxb4 33. Nxd3 (33. Ng2 {with more complications.} a5 34. h4 Bf5 35. Nf4 Kg7 36. Nh5+) 33... Bxd3 34. Rxd3 Rxb2+ {KR-KR} 35. Ke3 a5 36. Rd5 a4 37. Ra5 Rb4 38. g4 Kg7 39. Ra6 f5 40. gxf5 Rh4 41. h3 Rb4 42. Kd3 Rf4 43. Ke3 Rc4 44. Kd3 Rb4 45. Ke3 h6 46. Kf2 h5 47. Ke3 Rb3+ 48. Kf4 a3 49. Kg5 Rxf3 50. f6+ Kh7 51. h4 Rb3 52. Kxh5 Rb5+ 53. Kg4 Rb4+ 54. Kg5 Rb5+ 55. Kg4 Rb4+ 56. Kg5 Rb5+ {Accuracy: White = 90%, Black = 92%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.12"]
[White "Savchenko, Boris"]
[Black "Narayanan.S.L"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2573"]
[BlackElo "2637"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,119,18,18,12,15,11,0,7,5,0,0,30,-2,0,0,0,0,0,-1,2,7,88,79,70,0,0,0,20,21,25,20,50,0,0,0,16,34,81,85,83,69,86,72,79,44,137,131,170,116,110,112,108,118,98,123,425,425,364,39,38,16,49,0,0,0,0,0,0,0,855,843,833,831,763,577,1130,1031,1710,1692,1414,1700,1692,1620,1333,1246,1000,925,29973,29973,29975,29976,29976,29978,29979,29980,29981,29982]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 O-O 10. O-O-O Nbd7 11. g4 b5 12. g5 Nh5 13. Nd5 Bxd5 $1 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} 14. exd5 f6 {[%cal Rf6g5] 14...f6 scores better than 14...f5.} 15. gxf6 Bxf6 {The position is equal.} 16. Kb1 {[#]} Kh8 $146 ({Predecessor:} 16... Nf4 17. Na5 Nb6 18. Nc6 Qc7 19. Bxf4 exf4 20. c3 Rae8 21. Rg1 Re3 22. Rg4 Rxf3 {½-½ (88) So,W (2776)-Wojtaszek,R (2727) Batumi 2018}) 17. Na5 Nf4 18. Nc6 Qe8 19. Rg1 Qh5 20. Bxf4 exf4 21. Qxf4 Be5 22. Qb4 Qxh2 (22... Qxf3 $11 {keeps the balance.} 23. Bd3 Qf4) 23. Bd3 $1 $16 Qf4 24. Qa5 (24. Be4 $14) 24... Nc5 $11 25. Bg6 Qf6 ({But not} 25... hxg6 $2 26. Ne7 $18) ({Avoid the trap} 25... Qxf3 $2 26. Nxe5 dxe5 27. Bxh7 $1 $18 {[%mdl 512]}) 26. Nxe5 dxe5 27. Be4 $36 {[%mdl 2048] Black is under pressure.} Rad8 28. Qc7 Rc8 29. Qa5 Nxe4 30. fxe4 {d6 is the strong threat.} Qf2 31. c3 $1 ({Reject} 31. Qxa6 $6 Qxc2+ 32. Ka1 Ra8 $11) 31... Rf6 32. Qb4 Rf7 33. Qd6 (33. Qa3 {is interesting.} Qb6 34. Rgf1 Rxf1 35. Rxf1 Rg8 36. Qf8) 33... Qf6 34. Qxf6 gxf6 $16 {[%mdl 4096] Endgame KRR-KRR} (34... Rxf6 $14 35. Rg5 Re8) 35. Kc2 Rc4 36. Rg4 ({White should try} 36. Rg2 $18) 36... f5 37. Rg5 Rxe4 38. d6 $1 {[%cal Rd6d7] Black must now prevent d7.} Rd7 39. Rxf5 Kg7 $2 {[%mdl 8192]} (39... h6 $16 {is a better chance.} 40. Rd2 Kh7) 40. Rg1+ $18 Kh6 41. Rf2 $2 (41. Rf6+ $18 Kh5 42. Re6 Re2+ 43. Kc1) 41... Kh5 $1 $14 42. Rh2+ Rh4 43. Rxh4+ (43. Rd2 {keeps more tension.} Rg4 44. Re1 e4 45. c4 bxc4 46. Kc3) 43... Kxh4 {KR-KR} 44. Rd1 Kg4 45. b3 {[%cal Bb2b3,Bb3c4,Bc4c5,Bc5c6,Bc6c7][%mdl 32] With the idea c4.} Kf5 46. c4 bxc4 $2 {[%mdl 8192]} (46... Ke6 $11) 47. bxc4 $18 Ke6 48. c5 h5 49. Kc3 h4 50. Kb4 $1 {[%cal Rb4a5]} h3 51. c6 $1 {[%cal Rc6c7] Threatening mate with c7.} Rxd6 52. Rc1 $1 Rd8 53. c7 Rc8 {[#]} 54. Ka5 $1 h2 {[#]} 55. Kb6 $1 e4 56. Rh1 {White mates.} e3 57. Rxh2 Kd6 58. Rc2 a5 59. Kb7 Kd7 60. a4 {Accuracy: White = 80%, Black = 67%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.13"]
[White "Aravindh, Chithambaram VR."]
[Black "Sanal, Vahap"]
[Result "1-0"]
[ECO "D43"]
[WhiteElo "2630"]
[BlackElo "2569"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,81,18,19,14,18,13,32,0,9,-11,31,23,24,43,50,53,52,49,39,43,44,28,37,0,20,26,64,63,52,80,102,87,99,101,108,101,102,102,88,93,82,96,101,97,97,118,258,176,241,247,247,233,259,135,247,250,258,256,309,297,355,327,322,290,519,489,803,789,785,766]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Qd3 dxc4 6. Qxc4 b5 7. Qd3 Be7 8. g3 {D43: Semi-Slav: 5 Bg5 h6.} Bb7 9. Bg2 Nbd7 {[#]} 10. Be3 $1 $146 {[%mdl 8] White is slightly better. An important novelty.} ({Predecessor:} 10. Bf4 b4 11. Ne4 Nxe4 12. Qxe4 Nf6 13. Qc2 c5 14. dxc5 Rc8 15. O-O Bxc5 16. Qa4+ {0-1 (73) Galaktionov,A (2332)-Popov,I (2581) Moscow 2019}) 10... a6 11. a4 b4 12. Ne4 Nxe4 13. Qxe4 Nf6 14. Qd3 Nd5 15. O-O O-O 16. Rfc1 a5 17. Ne5 Rc8 18. Qb3 Rc7 19. f4 Qc8 20. Rc2 $1 c5 21. Rac1 $1 {[%cal Rd4c5]} cxd4 {[#] Threatens to win with ...Rxc2.} 22. Rxc7 Nxc7 23. Bxd4 Bxg2 24. Kxg2 Qb7+ 25. Qf3 Nd5 {[%cal Bc7d5,Bd5b6,Bb6c4][%mdl 32]} 26. e4 Nb6 27. Nc6 Rc8 28. Nxe7+ Qxe7 29. Qe3 $36 {[%mdl 2048] Black is under strong pressure.} Nc4 {Black cannot hold the game after this.} (29... Rxc1 $16 {was necessary.} 30. Qxc1 Nxa4) 30. Qd3 Nd6 (30... e5 $142) 31. Rxc8+ $18 Nxc8 {[#]} 32. Qb5 $1 Qd6 33. Qe8+ Qf8 34. Qd7 h6 35. Kf3 Kh7 36. b3 Kg6 37. Ke3 Kh7 38. Kd3 Qg8 $2 (38... Kg6 39. Qc7 f5 40. Qxa5 Nd6 41. Qxb4 fxe4+ 42. Ke2 Qc8) 39. Kc4 {White is clearly winning.} Qf8 (39... Kg6 $142 40. Kb5 Kh5) 40. Bc5 Qg8 41. Kb5 {Accuracy: White = 94%, Black = 65%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.14"]
[White "Suleymanli, Aydin"]
[Black "Martirosyan, Haik M."]
[Result "1/2-1/2"]
[ECO "E38"]
[WhiteElo "2474"]
[BlackElo "2630"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,69,50,67,37,46,32,44,47,64,33,53,36,35,41,66,54,67,88,95,94,174,138,144,166,142,147,150,156,166,163,196,196,275,143,122,139,157,157,164,157,175,189,171,34,22,14,22,22,25,12,18,12,10,13,25,15,16,9]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Bxc5 6. Nf3 Qb6 7. e3 Be7 8. g4 {E38: Nimzo-Indian: Classical: 4...c5.} h6 9. Rg1 Nc6 {[#]} 10. h4 $146 {White is slightly better.} ({Predecessor:} 10. a3 d6 11. h4 Nd7 12. g5 Nde5 13. Nd2 h5 14. b4 a5 15. b5 Nb8 16. Bb2 {½-½ (34) Wirig,A (2490)-Levin,F (2504) Germany 2014}) 10... h5 11. gxh5 Nxh5 12. Bd2 d6 13. Be2 Bd7 14. a3 O-O-O 15. b4 {[%cal Bb2b4,Bb4b5][%mdl 32]} Kb8 16. b5 Na5 (16... Ne5 $16) 17. Na4 Qc7 {next ...Bxb5! is good for Black.} 18. Rb1 Nf6 19. b6 axb6 20. Nxb6 Nc6 21. Rg5 {[#] And now Qa4 would win.} d5 22. cxd5 Nxd5 23. Nxd5 (23. Rxd5 $18 exd5 24. Nxd5) 23... exd5 $16 24. Rxd5 Bxh4 25. Nxh4 Rxh4 26. Bf3 {Threatens to win with Rdb5.} Rh6 27. Rdb5 Bc8 28. Ba5 ({White should play} 28. Bc3 $18) 28... Nxa5 $14 29. Qxc7+ Kxc7 30. Rxa5 Rf6 31. Ke2 Kb8 32. Rab5 {[%cal Rf3b7]} Rd7 $1 33. a4 Rc7 34. Be4 Ka7 35. Ke1 {Blacks defense is rewarded with a draw. Accuracy: White = 75%, Black = 93%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.15"]
[White "Deac, Bogdan-Daniel"]
[Black "Aryan Chopra"]
[Result "1/2-1/2"]
[ECO "A34"]
[WhiteElo "2626"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "113"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,113,16,26,15,30,18,17,20,29,26,31,19,18,18,16,8,18,12,8,6,18,13,10,0,12,8,19,29,27,0,0,0,0,0,7,0,0,0,45,48,47,14,43,26,50,49,65,67,65,54,105,62,69,73,75,78,70,66,73,54,54,43,43,43,43,43,43,34,34,2,0,0,17,8,8,8,8,8,8,4,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,0,0,0,0,0,0,-8,0,0,8,8]} 1. c4 Nf6 2. Nc3 c5 3. Nf3 d5 4. cxd5 Nxd5 5. e3 Nxc3 6. dxc3 {A34: Symmetrical English: 2 Nc3, lines with ...d5.} Qxd1+ 7. Kxd1 Nc6 8. e4 Bd7 9. Be3 e6 {[#]} 10. Nd2 $146 ({Predecessor:} 10. Kc2 Be7 11. Rd1 O-O-O 12. Be2 f6 13. Nd2 Ne5 14. f3 Kc7 15. Nc4 Nxc4 {½-½ (15) Miles,A (2555)-Tal,M (2620) Las Palmas 1977}) 10... Be7 11. f4 O-O-O 12. Kc2 h6 13. Bd3 e5 14. g3 exf4 15. gxf4 g5 16. Raf1 gxf4 17. Bxf4 Bh3 18. Rf2 Bh4 19. Bg3 (19. Bf1 {looks sharper.} Be6 20. Rg2 Be7 21. Nc4 Bg5 22. Bg3) 19... Bxg3 20. hxg3 Be6 21. Rh5 b6 22. Rf6 Kc7 23. b3 Rd7 {[#] Threatens to win with ...Rhd8.} 24. Bc4 Rhd8 25. Rf2 (25. Bd5 $5) 25... Re8 26. Bd5 Nd8 27. Rf6 Rg8 28. Nf1 Re7 29. Kd2 Rd7 (29... Rge8 $14) 30. Rfxh6 f5 31. Rh7 fxe4 32. Rxd7+ Kxd7 33. Bxe4 Nf7 34. c4 Kd6 35. Bd5 (35. Ke3 {with more complications.} Ne5 36. Nd2 Nd7 37. Kf4 Rg4+ 38. Kf3) 35... Bxd5 36. Rxd5+ $14 {[%mdl 4096] Endgame KRN-KRN} Ke6 37. Rh5 Nd6 38. Ke2 Ne4 39. Kf3 Nc3 {The position is equal.} 40. Rh7 Ra8 41. a4 {[%cal Ba2a4,Ba4a5,Ba5b6,Bb6b7][%mdl 32]} Rf8+ 42. Kg2 Ne4 $1 43. Rxa7 {Black should prevent Rb7.} Rf2+ 44. Kg1 {next Rb7 is good for White.} Rb2 45. Rb7 Rxb3 46. a5 Nxg3 47. Rxb6+ Rxb6 48. axb6 $11 {[#] Black must now prevent b7. KN-KN} Ne2+ 49. Kf2 Nd4 50. b7 Nc6 51. Nd2 Kd6 52. Ne4+ Kc7 53. Nxc5 Na5 54. Ne6+ Kxb7 55. c5 Nb3 56. Ke3 Nxc5 57. Nxc5+ {Accuracy: White = 93%, Black = 93%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.16"]
[White "Zvjaginsev, Vadim"]
[Black "Pranesh M"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2623"]
[BlackElo "2425"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,89,4,7,9,23,14,32,6,19,15,77,84,74,79,104,99,109,70,93,65,129,11,11,11,12,12,12,12,9,10,9,9,29,29,23,23,26,22,33,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,536,325,397,272,1280,1229,2297,2407,5189,2823,29984,29983,29985,29986,29987,29987,29992,29993]} 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. d4 O-O 6. Nc3 dxc4 7. Ne5 Nc6 8. Bxc6 {E06: Closed Catalan: Early deviations.} bxc6 9. Nxc6 Qe8 10. Nxe7+ {White is slightly better.} Qxe7 11. Qa4 e5 (11... c5 $11 12. dxc5 Qxc5) 12. dxe5 $16 Qxe5 13. Qxc4 Bh3 14. Bf4 {[#]} Qh5 $146 ({Predecessor:} 14... Qe7 15. O-O-O Rab8 16. Rd2 Rb7 17. Bg5 Bf5 18. Nd5 Qe4 19. Qxe4 Bxe4 20. Ne7+ Kh8 {½-½ (61) Rocabert Andreu,G (2234)-Taboas Rodriguez,D (2298) Benidorm 2002}) 15. O-O-O Be6 16. Qd4 ({But not} 16. Qxc7 $6 Ne4 $11) 16... c5 ({Better is} 16... Qa5 $14) 17. Qe5 ({White should play} 17. Qd6 $16) 17... Qxe5 $11 18. Bxe5 Ng4 {[%mdl 64] Double Attack} 19. Bd6 $1 {[%cal Rd6f8]} Nxf2 {[%mdl 64] Double Attack} 20. Bxf8 Kxf8 21. Rhf1 Nxd1 22. Rxd1 {[%mdl 4096] Endgame KRB-KRN} Ke7 23. Nd5+ Bxd5 $1 24. Rxd5 {KR-KR} Rc8 $1 25. Kc2 Rc6 26. Kc3 Rh6 27. Rxc5 Rxh2 28. Rc7+ Ke6 29. Rxa7 Rg2 30. b4 Rxg3+ 31. Kc4 h5 32. b5 h4 {And now ...h3 would win.} 33. b6 {Black must now prevent b7.} Rg1 $1 34. Ra8 Rb1 $1 {[%cal Rb1b6]} 35. Kc5 {a4 is the strong threat.} g5 36. a4 {[%cal Ba2a4,Ba4a5,Ba5a6,Ba6a7][%mdl 32] Strongly threatening a5.} Kf6 $2 {[%mdl 8192] [#] Black cannot hold the game after this.} (36... g4 $11 37. a5 g3) 37. Rg8 $1 $18 {aiming for a5.} h3 38. Rh8 g4 $2 (38... Rc1+ 39. Kd5 Rd1+ 40. Ke4 Rb1) 39. a5 Rb3 40. Kc4 Rb1 41. a6 Kg7 {[#]} 42. a7 $1 {[%mdl 512] White mates.} Kxh8 {[#]} 43. b7 $1 {[%mdl 512]} Rc1+ (43... Rxb7 44. a8=Q+) 44. Kd3 h2 45. b8=Q+ {[%mdl 64] Double Attack. Accuracy: White = 79%, Black = 54%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.17"]
[White "Zhou, Jianchao"]
[Black "Sychev, Klementy"]
[Result "1/2-1/2"]
[ECO "D31"]
[WhiteElo "2622"]
[BlackElo "2563"]
[Annotator "TA"]
[PlyCount "38"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,38,34,25,24,19,21,19,6,23,16,21,-1,-7,0,0,0,1,-2,0,0,0,-17,0,-4,-14,-12,0,-3,-1,-14,0]} 1. d4 d5 2. c4 e6 3. Nc3 Bb4 4. cxd5 exd5 5. Bf4 c6 6. e3 {D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+ Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6.} Ne7 7. Bd3 Bf5 8. Nge2 O-O 9. O-O Bd6 {[#] The position is equal.} 10. Bg5 $146 {[#] Bxf5 is the strong threat.} ({Predecessor:} 10. f3 Bxd3 11. Qxd3 Na6 12. e4 Bxf4 13. Nxf4 Rc8 14. Rad1 Nc7 15. e5 Ne6 16. Nh5 {0-1 (62) Moiseenko,A (2648)-Sanikidze,T (2548) Almaty 2016}) 10... Bxd3 11. Qxd3 Na6 12. f3 f6 13. Bh4 Ng6 14. Bf2 f5 15. Kh1 Nc7 16. e4 fxe4 17. fxe4 Qd7 18. exd5 cxd5 19. Bg3 Rxf1+ {An uneventful encounter. Accuracy: White = 100%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.18"]
[White "Erigaisi Arjun"]
[Black "Kobalia, Mikhail"]
[Result "1/2-1/2"]
[ECO "D11"]
[WhiteElo "2563"]
[BlackElo "2609"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,93,26,40,17,22,20,26,-6,39,37,45,39,54,48,49,43,19,32,19,24,34,21,26,23,27,10,24,24,23,27,24,17,18,0,0,6,22,11,37,14,22,0,0,0,0,-7,0,0,0,0,45,46,87,78,73,73,78,27,76,52,44,41,42,34,50,18,51,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 a6 5. Bd3 Bg4 6. Nbd2 {D11: Slav Defence: 3 Nf3 sidelines and 3...Nf6 4 e3 Bg4.} e6 7. O-O Nbd7 8. Qc2 {White has an edge.} Bd6 9. b3 Bh5 10. Bb2 Qb8 11. h3 Bg6 12. e4 dxe4 13. Nxe4 Nxe4 14. Bxe4 O-O 15. Rad1 {[#]} Re8 $146 ({Predecessor:} 15... a5 16. a4 Qc7 17. Rfe1 Rfd8 18. Bc3 Be7 19. Bxg6 hxg6 20. Nd2 b6 21. Re2 Nf6 {1-0 (43) Malaniuk,V (2525)-Berry,N (2300) Krakow 2003}) 16. Rfe1 Qc7 17. Nd2 Nf6 18. Bxg6 hxg6 19. c5 Bh2+ 20. Kh1 {Threatens to win with g3.} Bf4 21. Nc4 Qe7 22. Bc1 Bc7 23. Bg5 Qd7 24. Qc1 Nd5 25. Ne5 Qc8 26. Bh4 (26. Bd2 {is more complex.} a5 27. Kg1 Rd8 28. a4 Qb8 29. Qc4) 26... a5 27. a3 Bxe5 28. dxe5 b6 29. Re4 Rb8 30. Bf6 Ne7 ({And not} 30... gxf6 31. Qh6 g5 {[#]} 32. Rxd5 $1 {[%mdl 512]} Qd8 33. Rxd8 fxe5 34. Qxg5+ Kf8 35. Rh4 $1 {[%mdl 512]} f5 36. Qf6+ Kg8 37. Rh8#) 31. Bxe7 Rxe7 32. cxb6 Re8 33. Red4 (33. Qc5 $16 {And now b4 would win.} Qa6 34. Qxc6) 33... Qb7 34. Rd7 Qxb6 35. Qf4 Rf8 36. R1d3 Rb7 37. R7d4 Qc5 38. b4 (38. a4 $1 $14) 38... axb4 $11 {The position is equal.} 39. axb4 Qc2 40. Qe3 Rb5 41. Rc3 Qb2 42. Rcc4 Rd5 43. Kh2 Ra8 44. Rc3 Rxd4 45. Qxd4 g5 46. Qe3 Qxb4 47. Rxc6 {Accuracy: White = 89%, Black = 82%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.19"]
[White "Svane, Rasmus"]
[Black "Zanan, Evgeny"]
[Result "1/2-1/2"]
[ECO "A04"]
[WhiteElo "2608"]
[BlackElo "2500"]
[Annotator "TA"]
[PlyCount "43"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,43,15,21,0,0,-6,33,11,22,11,12,0,0,0,0,0,14,5,18,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,5]} 1. Nf3 c5 2. c4 Nc6 3. Nc3 e5 4. e3 Nf6 5. d4 e4 6. d5 {A34: Symmetrical English: 2 Nc3, lines with ...d5.} exf3 7. dxc6 bxc6 8. e4 {White is slightly better.} Qc7 {The position is equal.} 9. Qxf3 Bd6 10. g3 Be5 11. Bg2 O-O {[#]} 12. Bf4 $146 ({Predecessor:} 12. O-O Ba6 13. Qd3 Rab8 14. Rb1 Rb4 15. b3 Bxc4 16. bxc4 Bxc3 17. Bf4 Be5 18. Bxe5 Qxe5 {1-0 (33) Khismatullin,D (2621)-Fier,A (2561) Moscow 2019}) 12... Rb8 13. Bxe5 Qxe5 14. Qe2 d5 15. f4 Qd4 {[#] Threatens to win with ...Bg4.} 16. Rd1 $1 {[%cal Rd1d4]} Bg4 17. Rxd4 Bxe2 18. Rd2 Bxc4 {Hoping for ...dxe4.} 19. b3 Ba6 20. exd5 cxd5 21. Nxd5 c4 22. Nxf6+ {An uneventful encounter. Accuracy: White = 93%, Black = 92%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.20"]
[White "Karthikeyan, Murali"]
[Black "Visakh N R"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2602"]
[BlackElo "2518"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,68,12,12,-10,27,25,25,27,43,21,17,10,21,0,23,9,16,-13,59,44,50,36,51,52,64,71,76,77,74,74,77,78,81,74,98,88,109,91,128,43,39,47,62,58,59,52,54,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nf3 Be7 8. Nd2 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} Ng4 9. Nc4 {[#] Black must now prevent Bb6.} Nxe3 10. Nxe3 {White has an edge.} O-O 11. Ncd5 Be6 12. Be2 Nd7 13. O-O {[#]} Rc8 $146 ({Predecessor:} 13... Bg5 14. c3 g6 15. Qc2 Rc8 16. a4 f5 17. exf5 gxf5 18. Rad1 Kh8 19. f4 exf4 20. Nxf4 {0-1 (53) Pensimus,P (1731)-Sanchez Carol,J (2231) ICCF email 2017}) 14. c3 Bg5 15. Nf5 Bxf5 (15... Nc5 $11) 16. exf5 $14 Re8 17. Qb3 Nc5 18. Qc2 e4 19. Rad1 Re5 20. Rd4 g6 21. fxg6 hxg6 22. Rfd1 f5 23. Ne3 Bxe3 24. fxe3 Qg5 25. Qd2 Rd8 26. Rxd6 ({White should try} 26. h4 $16 Qe7 27. Rxd6 Rxd6 28. Qxd6) 26... Rxd6 27. Qxd6 Qxe3+ 28. Kh1 Nd3 $1 {[%cal Rd3f2]} 29. Qxg6+ Kh8 30. Qf6+ (30. Bxd3 $1 $14 exd3 31. h3) 30... Kh7 $11 {[#] ( -> ...Nf2+). The position is equal.} 31. Bxd3 exd3 32. h3 {Threatens to win with Rxd3.} Qg3 33. Qf7+ Kh6 34. Qf6+ Kh7 {Accuracy: White = 80%, Black = 83%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.21"]
[White "Antipov, Mikhail Al."]
[Black "Praggnanandhaa R"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "2562"]
[BlackElo "2602"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,77,24,9,22,10,23,9,10,0,5,0,46,45,54,60,73,59,58,60,104,92,114,104,91,78,87,80,230,186,186,186,186,179,208,210,218,205,221,203,218,205,262,251,325,289,323,307,308,290,273,267,298,283,529,519,1929,1890,1846,1846,1884,1897,29985,29986,29990,29991]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. O-O d6 6. c3 O-O 7. Re1 {Nowadays more popular than 7.Bb3.} h6 8. h3 a6 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 9. a4 a5 10. Nbd2 Be6 {[#] The position is equal.} 11. Ra2 $1 $146 {[%mdl 8] An important novelty.} ({Predecessor:} 11. b3 Re8 12. Bb5 Bd7 13. Bb2 Ba7 14. Nf1 Ne7 15. Bxd7 Qxd7 16. Ng3 Ng6 17. d4 {1-0 (40) Le,Q (2713)-Vidit,S (2721) Moscow 2019}) 11... Re8 12. b3 Bxc4 (12... d5 {feels hotter.} 13. Bb5 Bd6 14. Bb2 Qe7 15. exd5 Nxd5 16. Nc4 Qf6) 13. bxc4 Bb6 14. Nf1 Ne7 15. Nh4 Ng6 16. Nf5 Re6 17. Qf3 c6 18. Rb2 d5 19. Bd2 dxe4 20. dxe4 Nd7 (20... Rb8 $16 {keeps fighting.}) 21. Rd1 {Hoping for Bxh6!} Nh4 22. Nxh4 Qxh4 23. Be1 $40 {[%mdl 128] Black is in trouble.} Rd8 {[#]} (23... Rf6 $2 24. Qg4 $18) 24. Rxd7 $1 {[%mdl 576] Remove Defender} Rxd7 25. Rxb6 Qe7 26. Rb3 Qc5 27. Ne3 g6 28. Qe2 Red6 29. Kh2 Kg7 30. Qb2 Re6 31. Bd2 Qd6 32. Bc1 Qd3 33. f3 ({Don't take} 33. Rxb7 $6 Rxb7 34. Qxb7 Qxc3 $18) 33... f5 $2 (33... h5 {was called for.} 34. c5 (34. Rxb7 Rxb7 35. Qxb7 Qxc3 $18) 34... Re8) 34. Rxb7 $18 f4 {[#]} (34... Ree7 $142) 35. Nd5 $1 Red6 (35... cxd5 36. Rxd7+) 36. c5 {[%cal Bc4c5,Bc5d6][%mdl 32]} Qa6 37. Rb6 Qf1 38. cxd6 Qe1 {[#]} 39. Bxf4 $1 {Black got outplayed after the opening. Accuracy: White = 100%, Black = 47%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.22"]
[White "Sargissian, Gabriel"]
[Black "Ivic, Velimir"]
[Result "1-0"]
[ECO "D91"]
[WhiteElo "2689"]
[BlackElo "2558"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,100,21,31,25,33,33,31,32,27,9,19,12,30,30,29,38,30,36,40,27,33,26,27,31,37,38,45,27,30,27,37,39,62,61,65,68,57,64,171,172,162,159,161,156,315,301,288,261,517,491,668,658,645,648,801,698,810,805,683,675,3292,1752,866,432,1644,1275,29950,3310,29956,29957,29958,29959,29968,29968,29973,29972,29972,29972,29971]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bg5 Ne4 6. Bf4 Nxc3 7. bxc3 c5 8. cxd5 Qxd5 9. e3 O-O 10. Be2 cxd4 11. cxd4 Nc6 12. O-O Bf5 13. Qa4 {D80: Grünfeld: Unusual White 4th moves and 4 Bg5.} Qa5 14. Qxa5 {14.Qb3 is vanishing.} Nxa5 15. Nd2 {White is slightly better.} Rac8 16. g4 $5 {[%mdl 4] An interesting side line.} Be6 17. Rfc1 {[#]} Rxc1+ $146 ({Predecessor:} 17... Bd5 18. g5 Rfe8 19. h4 Bc6 20. Rc3 e5 21. dxe5 Rxe5 22. Rac1 Ree8 23. R3c2 Bf8 {½-½ (54) Noble,M (2465)-Castro Salguero,R (2396) ICCF email 2016}) 18. Rxc1 Rc8 19. Rxc8+ Bxc8 20. d5 Bc3 21. Ne4 Bb4 22. Bb8 f5 23. Ng3 Bc5 24. gxf5 gxf5 25. Bd3 e6 26. e4 fxe4 27. Nxe4 Bd4 28. Nd6 Bd7 29. Bb5 $1 {[%cal Rb5d7]} Bxb5 30. Nxb5 e5 (30... Bc5 $14) 31. Bxa7 ({Don't take} 31. Nxd4 $6 exd4 32. Bxa7 d3 $14) 31... Bxa7 32. Nxa7 $18 {[%mdl 4096] Endgame KN-KN} Nc4 33. Nb5 e4 $2 {Loses the game.} (33... Kf7 $16) 34. Nc3 e3 35. fxe3 Nxe3 $2 (35... Kf7 36. Kf2 Kf6 37. Ne4+ Ke5) 36. Kf2 Nc4 37. Kf3 Kf7 38. Kf4 Ke7 39. h4 Kd6 40. Kg5 Ne3 {[#]} 41. h5 $1 Nf1 42. Kf6 Ng3 43. h6 Nh5+ (43... b5 $142 44. Nxb5+ Kxd5 45. Nc3+ Kd4) 44. Kf7 Nf4 45. Kg7 (45. Kg8 $142 Ke7 {[#]} 46. d6+ $1 {[%mdl 512]} Kf6 47. d7 Ke7 48. Kxh7 Ne6 49. Ne4 Kf7 50. Nd6+ Ke7 51. Kg8 Kxd6 52. h7 Kxd7 53. h8=Q) 45... Ke7 {[#]} 46. d6+ $1 {[%mdl 512] White mates.} Kxd6 47. Kxh7 Ke5 48. Kg8 Nh5 {[#]} 49. Ne4 $1 {[%mdl 576] Promotion} Kxe4 50. Kf7 Kd5 {Accuracy: White = 100%, Black = 49%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.23"]
[White "Maghsoodloo, Parham"]
[Black "Kunin, Vitaly"]
[Result "1-0"]
[ECO "B56"]
[WhiteElo "2674"]
[BlackElo "2550"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,85,31,28,20,22,18,32,23,39,31,45,27,116,46,60,49,39,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-107,-106,-106,-122,-114,-106,-79,-33,-45,0,-75,-64,-115,-97,-125,-123,-100,-53,-81,-66,-52,0,0,26,0,0,0,0,0,0,-153,0,0,0,-78,0,0,0,0,2024,1458,1541,1579]} 1. e4 c5 2. Nc3 d6 3. Nf3 Nf6 4. d4 cxd4 5. Nxd4 Bd7 6. Bg5 e6 7. Ndb5 {B56: Classical Sicilian: Unusual Lines.} Bxb5 {is recently more successful than 7...Bc6. Played by Magnus Carlsen in December 2019.} 8. Bxb5+ Nc6 9. Qf3 {White is slightly better.} Be7 10. e5 Nd5 11. Bxe7 {[#]} Qxe7 $146 (11... Ndxe7 $11 12. Ne4 O-O) ({Predecessor:} 11... Ndxe7 12. exd6 Qxd6 13. O-O O-O 14. Rfd1 Qc5 15. Qe4 Rad8 16. Bxc6 Nxc6 17. Na4 Qh5 {½-½ (31) Shytaj,L (2466)-Kogan,A (2541) La Massana 2010}) 12. Qg3 (12. exd6 $16 Qxd6 13. O-O-O Qf4+ 14. Qxf4 Nxf4 15. Rd4) 12... dxe5 13. Qxg7 Qf6 14. Qg3 O-O-O 15. Bxc6 bxc6 16. Qd3 Nb4 17. Qe2 Qg6 18. O-O $1 Nxc2 19. Ne4 Nd4 (19... Rhg8 $5 20. g3 $8 Nd4 21. Qa6+ {[%mdl 64] Double Attack} Kd7 $11) 20. Qa6+ {[%mdl 64] Double Attack} Kd7 21. f3 Rhg8 $40 {[%csl Gg8][%cal Rg6g2][%mdl 128] Black has some attack.} 22. Rf2 {[#]} (22. g3 $11) 22... Nxf3+ $1 $17 {[%mdl 576] Pin} 23. Kh1 (23. Rxf3 Qxg2#) 23... Qxe4 24. Rxf3 Ke8 25. Qxa7 {[%csl Gf3][%cal Ra7f7]} Rg7 26. Rg1 Rd7 27. Qa3 (27. Qa8+ $11 {remains equal.} Rd8 28. Qb7) 27... f5 28. h3 ({Only move:} 28. Qc3 $1 $15) 28... Kf7 29. Re3 Qd4 30. Rc3 Ra7 31. Qb3 Qd5 32. Qb8 Rxa2 (32... Rd7 $15) 33. Rb3 $1 $11 {[%cal Rb3b7]} h6 34. h4 Kg6 {Strongly threatening ...Ra4.} (34... Ra4 $5 35. Rb7+ $8 Kg6 36. Qe8+ Kh7 $1 {[%mdl 512]} 37. Rxg7+ Kxg7 38. Qe7+ Kg8 39. Qe8+ Kh7 40. Qf7+ Kh8 41. Qe8+ Kh7 42. Qf7+ Kh8 43. Qe8+ Kh7 $11) 35. Qe8+ Kh7 $1 {( -> ...Ra1)} 36. Rb8 {Intending h5 and mate.} Qd7 37. Qh8+ $1 Kg6 {And now ...Kh5 would win.} 38. g4 $1 {[%cal Rg4g5] Threatens to win with g5.} Ra4 39. b4 {[#]} (39. gxf5+ {gets mated.} Kh5 40. Qxh6+ Kxh6 41. Rh8+ Rh7 42. Rg6+ Kh5 $1 {[%mdl 512]} 43. Rhg8 Rxh4+ 44. Kg2 Qd2+ 45. Kg1 Qe1+ 46. Kg2 Qh1+ 47. Kg3 Rh3+ 48. Kf2 Rf3+ {[%mdl 64] Double Attack} 49. Ke2 Qf1+ 50. Kd2 Rd7+ 51. Kc2 Qd1#) (39. Rd8 $11 {keeps the balance.} Qe7 40. gxf5+ Kh5 41. Rxg7 Qxh4+ 42. Kg2 Qe4+ 43. Kg3 Qh4+ 44. Kg2 Qe4+ 45. Kg3 Qh4+ 46. Kg2) 39... Qd5+ (39... f4 $1 $17 {Hoping for ...Ra3.} 40. Rd8 {[#]} Qe7 $1 {[%mdl 512]}) 40. Rg2 {Black must now prevent gxf5+.} Raa7 41. g5 Rh7 $2 {[%mdl 8192]} (41... hxg5 $11 42. h5+ Kf6 43. Rf8+ Raf7) 42. Qf6+ $18 Kh5 43. gxh6 {Accuracy: White = 73%, Black = 74%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.24"]
[White "Kovalev, Vladislav"]
[Black "Moroni, Luca Jr"]
[Result "1/2-1/2"]
[ECO "C78"]
[WhiteElo "2650"]
[BlackElo "2536"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,58,15,7,18,36,28,19,29,30,22,18,10,0,-18,-16,-19,-31,-29,-28,-38,-66,-43,-39,-43,-59,-67,-75,-60,-100,-79,-126,-86,-95,-99,-113,-58]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Bc5 7. c3 d6 8. a4 Rb8 9. d4 Bb6 10. axb5 axb5 11. Na3 O-O 12. Nxb5 Bg4 13. Bc2 Bxf3 {C78: Ruy Lopez: Archangelsk and Möller Defences.} 14. gxf3 Nh5 15. f4 Nxf4 {[#] ( -> ...Qg5+). The position is equal.} 16. Bxf4 exf4 17. Qg4 Qf6 18. Kh1 Ne7 19. Na3 {[#]} c5 $146 ({Predecessor:} 19... Ng6 20. Nc4 Rfe8 21. Ra6 Kf8 22. e5 dxe5 23. d5 Qd8 24. Be4 {½-½ (24) Joba,A (1980)-Forgacs,A (1729) Gyor 2016}) 20. e5 dxe5 21. dxe5 Qxe5 22. Rad1 Rbd8 23. Nc4 Qf6 24. Qf3 Bc7 25. Rfe1 Ng6 26. Be4 Rxd1 {Black is better.} 27. Rxd1 Qe7 28. Bxg6 hxg6 29. Kg2 Qg5+ {Accuracy: White = 75%, Black = 84%.} ({Black should play} 29... g5 $17 30. h3 g6) 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.25"]
[White "Grigoriants, Sergey"]
[Black "Shtembuliak, Evgeny"]
[Result "1/2-1/2"]
[ECO "B08"]
[WhiteElo "2539"]
[BlackElo "2628"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,100,31,29,25,57,33,34,6,22,-4,30,17,20,1,14,0,6,0,0,0,0,0,0,0,0,-21,14,17,6,0,0,0,0,-10,-5,-5,21,-6,-11,-12,16,16,16,0,0,-22,-20,-21,0,0,4,0,0,0,0,0,0,0,0,0,25,8,41,0,0,0,0,0,0,-8,0,-21,0,-11,-3,-77,-23,0,0,0,0,0,0,0,8,0,0,0,8]} 1. e4 d6 2. d4 g6 3. Nf3 Nf6 4. Nc3 Bg7 5. Be2 O-O 6. O-O a6 $1 {[%mdl 4] is recently more successful than 6...c6.} 7. Re1 Nc6 8. h3 {B08: Pirc Defence: Classical System.} e6 9. Bf4 b5 10. a3 {White is slightly better.} Bb7 {[#]} 11. Qd2 $146 ({Predecessor:} 11. Bg5 Ne7 12. e5 Nd7 13. Qd2 dxe5 14. dxe5 f6 15. exf6 Bxf6 16. Bxf6 Nxf6 17. Qe3 {1-0 (42) Abdelmoumen,A (1824)-Kaufmann,M (2167) IECG email 2001}) 11... Ne7 12. Bf1 c5 13. dxc5 dxc5 14. Bd6 Rc8 15. Rad1 Ne8 $1 16. Be5 Qxd2 17. Rxd2 Nf6 18. Bd6 Rfe8 19. e5 Nfd5 20. Ne4 c4 21. Nc5 Ba8 22. Nd4 Nc6 23. Nxc6 Rxc6 24. Ne4 Rd8 25. Be7 Rd7 26. Bf6 Rcc7 27. Bxg7 Kxg7 28. c3 Kf8 29. g3 Nb6 {And now ...Bxe4 would win.} 30. Nd6 Rc5 31. f4 Rd5 32. Red1 Na4 33. Bg2 Rxd2 34. Rxd2 Bxg2 35. Kxg2 $11 {[%mdl 4096] Endgame KRN-KRN} Ke7 36. Kf3 Rc7 37. Ne4 Rd7 38. Nd6 h6 39. Nc8+ Kd8 40. Nd6 {Black should prevent Nxf7+.} Kc7 41. Ke3 Kc6 42. h4 Nc5 43. Rh2 f6 44. Rd2 (44. h5 $1 $11 g5 45. fxg5 fxg5 46. Rd2) 44... h5 (44... Nd3 $17) 45. a4 f5 {The position is equal.} 46. axb5+ axb5 47. Rd4 Nb3 48. Rd1 Nc5 49. Rd4 Nb3 50. Rd1 Nc5 {Accuracy: White = 84%, Black = 76%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.26"]
[White "Sindarov, Javokhir"]
[Black "Durarbayli, Vasif"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2537"]
[BlackElo "2625"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,98,11,44,11,16,16,11,13,17,0,8,-5,0,0,0,0,0,0,10,0,0,0,0,-18,-25,-81,-54,-79,-26,-46,-42,-31,-41,-51,-52,-55,-72,-83,-80,-172,-178,-247,-234,-238,-96,-111,-116,-112,-108,-248,-217,-252,-259,-239,-252,-245,-247,-245,-235,-335,-337,-351,-345,-273,-258,-258,-258,-261,-269,-269,-261,-568,-553,-553,-539,-539,-536,-519,-324,-485,-460,-752,-669,-29981,-29982]} 1. e4 c5 2. Nc3 a6 3. Nge2 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Be3 e5 7. Nf3 Be7 8. Bc4 Be6 9. Bb3 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} Nbd7 $1 {[%mdl 4] outshines the older 9...0-0. Played by Anish Giri in November 2019.} 10. O-O Rc8 11. Re1 {The position is equal.} b5 {[#]} 12. Qe2 $146 ({Predecessor:} 12. Bg5 O-O 13. Bxf6 Nxf6 14. a3 Rc6 15. Qd3 Qc8 16. Rac1 Bxb3 17. cxb3 Bd8 18. Rc2 {½-½ (41) Afanasiev,N (2508)-Sakaev,K (2595) Khanty-Mansiysk 2019}) 12... Qc7 13. h3 Bc4 14. Bxc4 Qxc4 15. Qxc4 Rxc4 16. Nd2 Rc6 17. Rac1 O-O 18. a3 Rfc8 19. Red1 Bd8 20. f3 (20. Rb1 $11 {keeps the balance.}) 20... Ba5 $17 21. Ndb1 h6 ({Black should play} 21... Nb6 $17 22. b3 Kf8) 22. Rd3 Kf8 23. Rcd1 Ke7 24. Kh2 Bb6 25. Bxb6 Nxb6 26. b3 Nh5 27. Na2 (27. g3 $17) 27... Rxc2 $19 28. Nb4 (28. Nbc3 $142 Nf4 29. R3d2 Rxd2 30. Rxd2) 28... Rb2 $1 {aiming for ...a5.} 29. Nc3 a5 (29... Nf4 $19 {is more deadly.} 30. Rxd6 Rxc3 31. Nc6+ Rxc6 $1 {[%mdl 512]} 32. Rxc6 Rxg2+ 33. Kh1 Rg6 34. Rc7+ Ke8) 30. Ncd5+ $17 Nxd5 31. Nxd5+ Kf8 32. Ne3 {Loses the game.} (32. R1d2 $17 Rb1 33. Rd1 Rxd1 34. Rxd1) 32... g6 33. Rxd6 Nf4 $1 (33... Rxb3 34. Nf5 $17) 34. R1d2 {[#]} Rxd2 $1 ({Don't take} 34... Rxb3 35. Ng4 $17) 35. Rxd2 $19 {[%mdl 4096] Endgame KRN-KRN} Rc3 {[%mdl 64] Double Attack} 36. Ng4 {[#]} Nd3 $1 ({But not} 36... Rxb3 37. Nxe5 Rxa3 38. Rd7 $17) 37. Nxe5 (37. a4 $142 b4 38. Ne3) 37... Nxe5 {KRN-KR} 38. Rd5 Nd3 ({Less strong is} 38... Rxb3 39. Rxe5 a4 40. Kg3 $15) 39. Rxb5 {[#]} a4 $1 40. bxa4 Rxa3 41. a5 Ra2 42. Kg3 Kg7 43. e5 $2 (43. Rb1) 43... g5 44. h4 Nf4 {[%csl Gf4][%cal Ra2g2]} 45. hxg5 hxg5 {[%csl Gf4][%cal Ra2g2]} 46. Kg4 Rxg2+ 47. Kf5 Ne6 {White must now prevent ...Nd4+.} 48. Rb6 (48. Ke4 $142) 48... Ra2 49. a6 Ra4 {Accuracy: White = 57%, Black = 90%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.27"]
[White "Sadhwani, Raunak"]
[Black "Indjic, Aleksandar"]
[Result "0-1"]
[ECO "E06"]
[WhiteElo "2522"]
[BlackElo "2622"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,82,20,5,31,11,24,18,18,14,27,28,35,12,22,0,33,32,68,63,62,61,93,59,67,27,20,-77,0,0,0,-87,-75,-64,-72,-89,-73,-102,-118,-114,-70,-69,-89,-81,-50,-56,-58,-46,-46,-65,-65,-91,-6,-172,-143,-208,-206,-188,-188,-290,-179,-834,-817,-1206,-1154]} 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. d4 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 a6 8. a4 Bd7 9. Qxc4 Bc6 10. Bg5 Nbd7 $1 {[%mdl 4] now scores much better than the old 10...Bd5. Played by Levon Aronian in December 2019.} 11. Nc3 a5 {E05: Open Catalan: 5 Nf3 Be7.} 12. Rfe1 h6 13. Bxf6 Nxf6 {The position is equal.} 14. e4 Bb4 15. Ne5 Ra6 {[%cal Ba8a6,Ba6b6,Bb6b4][%mdl 32] [#]} 16. Re3 $146 ({Predecessor:} 16. Re2 Nd7 17. Nxd7 Bxd7 18. e5 Bxc3 19. bxc3 Bc6 20. Rd2 Bxg2 21. Kxg2 Rc6 22. Qb3 {1-0 (60) Tratar,M (2439)-Struk,J (2268) Pula 2000}) 16... Be8 17. Rd1 Rb6 18. Qa2 Be7 19. Nc4 Rb4 20. b3 c6 {[#] With the idea ...b5.} 21. Red3 $1 Nd7 22. d5 Nc5 23. Re3 (23. Rf3 $11 {remains equal.}) 23... Qb8 (23... Nxb3 $17 {White must now prevent ...Bc5.} 24. d6 Bg5) 24. d6 $11 Bg5 25. f4 (25. Rf3 $1 $11) 25... Bd8 $17 26. Kh1 Rxb3 27. Ne5 {And now d7 would win.} f6 28. Nf3 Bh5 29. f5 e5 30. Nd2 $1 {[%cal Rd2b3][%mdl 64] Pin} Bf7 {Strongly threatening ...Rxc3!} ({Weaker is} 30... Bxd1 31. Nxd1 Qxd6 32. Bf3 $16 (32. Rxb3 Nxb3 33. Qxb3+ {[%mdl 64] Double Attack} Kh7 $17)) 31. Nxb3 Bxb3 32. Qa3 Bxd1 33. Qxc5 Bh5 34. Bf1 b5 $1 $36 {[%cal Bb7b5,Bb5a4][%mdl 2080] Black is more active.} 35. Qxc6 {[#]} ({But not} 35. axb5 $2 Bb6 $19) 35... Qa7 (35... Qb6 $1 $17 {[%cal Rb6e3]} 36. Qxb6 Bxb6) 36. Qd5+ $2 {This move loses the game for White.} (36. Nd5 $11 {and White is okay.} b4 37. Bb5) 36... Bf7 37. Qd3 (37. Qd2 $17 {was the only chance.} b4 38. Nb5) 37... Qc5 38. Nd5 bxa4 39. Qa3 (39. Qb5 $142 Qxd6 40. Bc4) 39... Qd4 40. d7 $2 (40. Qd3) 40... Bxd5 $19 41. exd5 Bb6 {Accuracy: White = 61%, Black = 64%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.28"]
[White "Nesterov, Arseniy"]
[Black "Jobava, Baadur"]
[Result "1-0"]
[ECO "D17"]
[WhiteElo "2501"]
[BlackElo "2620"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,87,16,19,8,43,35,63,38,37,15,11,14,14,0,35,41,41,30,39,38,87,80,54,41,23,32,64,44,54,45,55,15,124,43,46,12,12,12,12,12,12,0,0,-36,41,41,41,41,41,41,41,41,42,41,41,37,362,348,588,517,512,0,0,0,508,493,500,495,472,459,638,627,638,638,631,631]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 Nbd7 7. Nxc4 Qc7 8. g3 {D17: Slav Defence: 5 a4 Bf5: Lines with 6 Nh4 and 6 Ne5.} Rd8 9. Bf4 Qc8 10. Bg2 {White is slightly better.} Be6 11. Nd2 {[#]} Nb6 $146 ({Predecessor:} 11... g6 12. O-O Bg7 13. Qc2 O-O 14. e4 Nb6 15. a5 Nc4 16. Nxc4 Bxc4 17. Rfd1 h6 {1-0 (42) Sarana,A (2663)-Jobava,B (2604) Moscow 2019}) 12. a5 Nbd5 13. Bg5 Nc7 14. Qa4 $36 {[%mdl 2048] White has good play.} Bh3 15. O-O Bxg2 16. Kxg2 Nfd5 17. e4 h6 {Hoping for ...Nxc3.} 18. Be3 Nxe3+ 19. fxe3 e5 20. Qc4 {[%csl Gf1][%cal Rc4f7]} Ne6 {[%cal Re5d4]} 21. d5 Ng5 22. Nf3 cxd5 {[#]} (22... Nxf3 $11 {keeps the balance.} 23. Rxf3 cxd5 24. Qb5+ Qd7) 23. Qa4+ ({White should try} 23. Qb5+ $1 $16 Qd7 24. Nxe5 Qxb5 25. Nxb5 dxe4 26. a6) 23... Qd7 $1 $14 24. Nb5 {[%cal Bc3b5,Bb5c7,Bc7e6][%mdl 32]} Be7 {Threatens to win with ...Nxf3.} ({Not} 24... dxe4 $2 25. Nxe5 Qh3+ 26. Kh1 $18) 25. Nc7+ {[%mdl 64] Double Attack} Kf8 26. Qxd7 Rxd7 27. Nxg5 hxg5 28. Rac1 dxe4 (28... d4 $15) 29. Ne6+ $1 Kg8 $1 30. Rc8+ Kh7 31. Rxh8+ Kxh8 32. Rxf7 {[%mdl 4096] Endgame KRB-KRN} g4 33. Kf1 {[%mdl 1024] White has compensation.} g6 34. Ke2 a6 $2 {[%mdl 8192]} (34... Kg8 $14 35. Rg7+ {[%mdl 64] Double Attack} Kh8) 35. Rg7 $18 g5 $2 (35... Rc7 {is a better defense.} 36. Kd1 Rd7+ 37. Kc2 Rc7+ 38. Kb1 Rd7) 36. b3 Rc7 37. Rf7 $2 (37. Kd1 $18) 37... Kg8 $1 $11 38. Rg7+ $2 {[%mdl 8192]} (38. Nxg5 $11 Rc2+ 39. Kd1 Bxg5 40. Rf5 {[%mdl 64] Double Attack}) 38... Kh8 $18 39. Kd1 {White is clearly winning.} Rd7+ {[#]} 40. Kc2 $1 Rc7+ 41. Kb1 Rd7 42. b4 Rc7 43. Kb2 Rd7 44. Kc2 {Accuracy: White = 78%, Black = 55%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.29"]
[White "Can, Emre"]
[Black "Asadli, Vugar"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "2600"]
[BlackElo "2538"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,68,9,22,10,18,0,0,0,0,0,0,0,10,0,9,0,19,-24,-14,-43,-35,-32,-33,-176,-166,-222,-208,-199,-203,-202,-183,-202,-192,-236,-158,-168,-169,-164,-160,-243,-231,-325,-246,-465,-437,-1294,-1268,-5343,-5314,-5302,-4997]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 Bb4+ 5. Bd2 Be7 6. Bg2 c6 7. Qc2 b6 8. O-O O-O 9. Rd1 Bb7 10. Bf4 Na6 {[%cal Bb8a6,Ba6c7,Bc7d5][%mdl 32]} 11. a3 {E06: Closed Catalan: Early deviations.} Rc8 12. Nc3 dxc4 13. Ne5 {The position is equal.} Nd5 14. Nxc4 Nxf4 15. gxf4 Nc7 16. e3 Nd5 17. b4 Qc7 {[#]} 18. Ne4 $146 ({Predecessor:} 18. Ne5 f6 19. Nd3 Kh8 20. Rac1 Qd7 21. Ne4 Qe8 22. Ng3 Bd6 23. Qe2 {½-½ (23) Zontakh,A (2568)-Shimanov,A (2550) Olginka 2011}) 18... f5 19. Ng5 Bxg5 $1 20. fxg5 f4 21. Bh3 {This move loses the game for White.} (21. g6 $15) 21... Qe7 $19 22. e4 {[#]} (22. Qe4 {was called for.} Qxg5+ 23. Kh1) 22... f3 $1 ({Not} 22... Qxg5+ 23. Kh1 $11) 23. Kh1 Nf4 24. Bg4 Qxg5 25. Rg1 {[#] And now Bxe6+! would win.} Qe7 $1 26. Bxf3 c5 27. dxc5 bxc5 28. b5 Rcd8 29. Rg3 (29. Bg2 $17) 29... Nd3 {Strongly threatening ...Rxf3!} 30. Qe2 (30. Kg1 $142 Qh4 31. Qc3) 30... Qh4 {Hoping for ...Rxf3!} 31. Nd2 $2 {[#]} (31. Kg1) 31... c4 $1 {[%cal Bc5c4,Bc4c3][%mdl 544] ...c3 is the strong threat.Black is clearly winning.} 32. Rag1 (32. Kg1 $142 Nf4 33. Qe1) (32. Nxc4 Rxf3) 32... c3 33. Nb1 {[#]} Rxf3 $1 {[%mdl 512]} 34. Rxf3 (34. Qxf3 Bxe4) 34... Qxe4 {Accuracy: White = 35%, Black = 93%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.30"]
[White "Murzin, Volodar"]
[Black "Salgado Lopez, Ivan"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "2442"]
[BlackElo "2597"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,85,33,25,33,44,53,27,63,56,64,53,60,66,61,47,60,63,100,64,91,87,84,56,60,60,50,58,97,89,132,132,137,132,133,0,149,114,127,105,109,108,108,95,124,116,118,84,134,134,170,161,166,157,147,94,97,92,113,72,128,100,239,220,385,370,903,895,841,853,29984,29985,29992,29993,29993,29994]} 1. d4 g6 2. Nf3 Bg7 3. e4 c6 4. Bd3 d6 5. Nbd2 {[%cal Bb1d2,Bd2c4,Bc4b6][%mdl 32]} Nf6 6. O-O O-O 7. Re1 $1 {7.Re1 is better than 7.c3.} Qc7 {B07: Pirc Defence: Miscellaneous Systems.} 8. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} b6 9. Qe2 {[#]} a6 $146 {White has an edge.} ({Predecessor:} 9... e5 10. c3 Nbd7 11. dxe5 dxe5 12. b4 Nh5 13. Nf1 c5 14. g3 Bb7 15. Ne3 Nhf6 {0-1 (53) Brazina,D (1929)-Kocian,M (2015) Czechia 2013}) 10. Nc4 d5 11. exd5 Nxd5 12. a5 {Nxb6 is the strong threat.} b5 13. Nb6 Ra7 14. Bg5 e6 15. Qe4 Nd7 {[#]} 16. Nxd5 $1 (16. Nxc8 Rxc8 17. c4 Nb4 $11) 16... cxd5 17. Qh4 Re8 18. Re2 f6 19. Bf4 Qd8 20. Qg3 Nf8 21. h4 Kh8 22. Qh2 Kg8 23. Qg3 Kh8 $1 24. Ra3 Rd7 25. b4 Bb7 26. Ra1 Qe7 27. c3 Qf7 28. Rae1 Rc8 29. Bd2 Rdd8 30. Qh3 Re8 31. g4 h5 32. gxh5 gxh5 33. Nh2 (33. Qg3 $142) 33... e5 $16 34. Bf5 Ng6 35. Nf1 Ne7 ({Black should try} 35... Rc7) 36. Ng3 {[%cal Rd4e5]} ({Of course not} 36. dxe5 $6 fxe5 37. Ng3 (37. Bxc8 Bxc8 38. Qh2 e4 $15) 37... Nxf5 $11) ({Don't play} 36. Bxc8 $6 Bxc8 37. Qh1 Rg8 $11) 36... Rcd8 {Loses the game.} (36... Nxf5 $16 37. Qxf5 Rc7) 37. dxe5 $18 fxe5 $2 {[#]} (37... d4 38. Be6 Qg6) 38. Be6 $1 {[%cal Re6f7]} Qg6 $2 (38... Bc8) 39. Rxe5 Bxe5 40. Rxe5 Qb1+ 41. Kh2 {White mates.} Ng6 42. Rxh5+ Kg7 43. Bh6+ {Accuracy: White = 76%, Black = 48%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.31"]
[White "Mendonca, Leon Luke"]
[Black "Cordova, Emilio"]
[Result "0-1"]
[ECO "A57"]
[WhiteElo "2418"]
[BlackElo "2593"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,88,22,15,19,20,10,21,4,20,4,0,3,0,0,8,0,0,0,16,14,18,9,0,-20,-7,-10,-16,-16,-16,-16,-16,-13,-13,-10,-12,-40,-43,-42,-38,-48,-63,-71,-62,-95,-64,-54,-31,-96,-96,-153,-124,-148,-80,-78,-72,-72,-66,-239,-235,-317,-308,-462,-470,-493,-487,-472,-486,-481,-496,-557,-461,-706,-655,-12832,-12833,-2801,-1437,-12841,-12841,-12841,-12840]} 1. d4 Nf6 2. c4 c5 3. d5 b5 4. Qc2 bxc4 5. e4 e6 6. Bxc4 {A57: Benko/Volga Gambit.} exd5 7. exd5 d6 8. Nc3 {The position is equal.} Be7 9. Nge2 O-O 10. O-O Nbd7 11. Ng3 Nb6 12. b3 Nxc4 13. bxc4 Re8 {[#]} 14. Rb1 $146 ({Predecessor:} 14. Re1 Bf8 15. Bg5 Rxe1+ 16. Rxe1 h6 17. Bf4 Bg4 18. f3 Bh5 19. Qe2 Bg6 20. Nce4 {½-½ (37) Van Schijndel,Z-Strating,H Netherlands 1993}) 14... Bf8 15. Bf4 h6 16. Qa4 Ng4 17. h3 Ne5 18. Rfe1 Bxh3 19. Bxe5 Bd7 20. Qa6 dxe5 21. Nb5 Qc8 22. Qxc8 Rexc8 23. Rxe5 Rab8 24. Re3 a6 25. Na3 Rb4 26. Ne4 f5 27. Nd2 Bd6 28. Nf3 (28. Reb3 $15) 28... f4 $36 {[%mdl 2048] White is under strong pressure.} 29. Rc3 ({White should play} 29. Reb3) 29... Bf5 30. Re1 Rb2 (30... Kf7 $142 31. Nh4 Bg4) 31. Rb3 Rxb3 32. axb3 Rb8 33. Nd2 $2 {This costs White the game.} (33. Nb1 $15) 33... Bc7 $1 $19 34. Nab1 {[#]} Ba5 $1 35. Rd1 (35. g4 $142 fxg3 36. Re3) 35... Bc2 {Black is clearly winning.} 36. Rc1 Bxb1 $1 {[%mdl 64] Overworked Piece} 37. Nxb1 Rxb3 {[%mdl 4096] Endgame KRB-KRN} 38. Kf1 Bb4 39. Rd1 Kf8 40. Nd2 (40. g3 $142 fxg3 41. fxg3) 40... Rd3 41. Ke2 {[#]} Rxd2+ $1 {[%mdl 64] Remove Defender} 42. Rxd2 {[#]} f3+ $1 {[%mdl 512]} 43. gxf3 (43. Kxf3 Bxd2) 43... Bxd2 44. Kxd2 a5 {Accuracy: White = 52%, Black = 89%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.32"]
[White "Vignesh N R"]
[Black "Wagner, Dennis"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "2436"]
[BlackElo "2590"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,68,10,23,20,22,20,24,24,15,-93,-97,-97,-94,-91,-91,-94,-96,-168,-162,-155,-166,-164,-166,-183,-193,-178,-157,-143,-141,-137,-118,-187,-187,-187,-137,-352,-345,-362,-379,-426,-430,-435,-364,-456,-486,-480,-415,-477,-462,-753,-736,-571,-465,-29988,-29989,-29989,-29990,-29993,-29994]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 d6 6. c3 a6 7. a4 {outshines the older 7.Bb3. Played by Alireza Firouzja in February 2020. C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} Ba7 8. Nbd2 Nh5 $5 {[%mdl 4] [#] An interesting side line.} 9. Nb3 $146 {Hoping for Ng5.White has an edge.} ({Predecessor:} 9. Re1 Qf6 10. Nf1 Bg4 11. Be3 Nf4 12. Bxf4 Qxf4 13. Ne3 Bxf3 14. Qxf3 Qxf3 15. gxf3 {0-1 (44) Radovanovic,N (2438)-Predke,A (2603) Sarajevo 2018}) 9... Qf6 10. Nxe5 (10. Be3 $11 {remains equal.}) 10... Nxe5 $17 ({Weaker is} 10... Qxe5 11. d4 $16) 11. Qxh5 Bg4 12. Qg5 Be2 $1 13. Qxf6 gxf6 14. Bf4 (14. Nd2 $17 {is a better defense.}) 14... Nxc4 $19 15. dxc4 Bxc4 16. Nd2 Bxf1 17. Nxf1 {[#]} O-O-O $1 18. Rd1 Rhe8 19. Ng3 {[#]} f5 $1 20. exf5 {[#]} d5 $1 21. Bg5 (21. Kf1 $17) 21... Rd6 22. Bf4 Rd7 23. Nh5 $2 {Now White is beyond hope.} (23. Kf1 $17) 23... Re2 24. Bg3 Rde7 ({Don't take} 24... Rxb2 25. Nf6 $19) 25. Kf1 Rxb2 26. Nf6 c6 27. Nxh7 Ree2 {[%cal Ra7f2]} 28. Re1 Rxe1+ 29. Kxe1 {[%mdl 4096] Endgame KRB-KBN} a5 30. Ng5 (30. Kd1 $142) 30... b5 {[%cal Bb7b5,Bb5a4,Ba4a3,Ba3a2][%mdl 32]} 31. Nxf7 bxa4 {( -> ...a3)} 32. f6 (32. Bd6 $19) 32... a3 {Black mates.} 33. Nd6+ Kd7 34. f7 a2 {Accuracy: White = 49%, Black = 96%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.33"]
[White "Chigaev, Maksim"]
[Black "Gokerkan, Cem Kaan"]
[Result "1/2-1/2"]
[ECO "B72"]
[WhiteElo "2616"]
[BlackElo "2461"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,99,21,10,15,12,23,6,18,16,51,55,52,54,45,31,41,30,21,37,52,45,50,46,50,60,73,64,73,66,71,52,69,63,64,56,60,46,46,46,56,63,54,0,43,44,32,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 a6 7. a4 Bg7 8. Be2 O-O 9. O-O Nc6 10. Qd2 Bd7 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} 11. Rfd1 Rc8 12. f3 Ne5 13. a5 Nc4 14. Bxc4 $1 Rxc4 15. Nde2 Rc8 {[#]} 16. Bb6 $146 ({Predecessor:} 16. b3 Bc6 17. Bb6 Qe8 18. Bd4 Nd7 19. Nd5 Bxd4+ 20. Nxd4 Bxd5 21. exd5 Nf6 22. c4 {1-0 (33) Hou,Y (2629)-De Filomeno,S (2430) Florence 2014}) 16... Qe8 17. Rac1 Bc6 18. b3 h5 19. Nd5 Bxd5 20. exd5 Qb5 21. Rb1 Kh7 22. c4 Qd7 23. Re1 Rfe8 24. Nd4 e5 25. dxe6 $1 fxe6 26. Rbd1 d5 27. f4 dxc4 28. bxc4 Rxc4 29. Qe2 Qa4 30. Nxe6 (30. Qf1 $14) 30... Rc6 (30... Rxf4 $5 31. Qd2 Rf5 $11) 31. Ng5+ $1 Kh6 32. Qf1 Rxe1 {The position is equal.} 33. Qxe1 Ng4 {White must now prevent ...Bc3.} 34. h3 Rxb6 ({Not} 34... Qxf4 $2 35. hxg4 Qxg4 36. Nf3 $18) 35. hxg4 ({Of course not} 35. axb6 Bd4+ 36. Rxd4 Qxd4+ 37. Kh1 Nf2+ 38. Kh2 Qxf4+ 39. g3 Qxg5 $15) 35... Rb2 36. Nf7+ Kh7 37. Ng5+ Kh6 38. gxh5 {[#] Intending Nf7+ and mate.} Qxf4 39. Ne6 Qg4 {[%csl Gb2][%cal Rg4g2]} 40. Rd2 Rxd2 41. Qxd2+ Kh7 42. hxg6+ (42. Nxg7 {is interesting.} Kxg7 43. Qb2+ Kh6 44. Qh8+ Kg5 45. hxg6 Qd1+ 46. Kh2) 42... Kxg6 43. Nxg7 (43. Qd6 {seems wilder.} Bf6 44. Qd3+ Kh6 45. Qe3+ Kh7 46. Nf4) 43... Kxg7 $11 {[%mdl 4096] Endgame KQ-KQ} 44. Qc3+ Kg6 45. Qd3+ Kg7 $1 46. Qc3+ Kg6 47. Qc2+ Kf6 48. Qb2+ Kf5 49. Qb1+ Kg5 50. Qxb7 {Accuracy: White = 94%, Black = 93%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.34"]
[White "Sivuk, Vitaly"]
[Black "Krishna C R G"]
[Result "0-1"]
[ECO "A80"]
[WhiteElo "2557"]
[BlackElo "2443"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,74,30,30,30,32,30,27,26,15,17,20,26,42,53,45,35,26,29,67,55,55,52,60,58,87,85,82,70,64,62,75,74,127,92,90,63,71,92,79,92,80,0,0,0,0,0,0,0,0,-5,0,-8,-6,-259,-248,-284,-250,-904,-570,-1358,-1275,-29990,-29991,-29997,-29998,-29998,-29999]} 1. d4 f5 2. Nc3 d5 3. Bf4 a6 4. e3 Nf6 5. Nf3 e6 6. Bd3 {A80: Dutch Defence: Unusual White second moves.} c5 7. dxc5 Bxc5 8. O-O {White has an edge.} Nc6 $1 {8...Nc6 is better than 8...0-0.} 9. Ne2 O-O 10. c4 Qe7 {Black wants to play ...e5.} 11. cxd5 Nxd5 12. Bg5 Nf6 13. Rc1 Bd7 14. Nf4 Bd6 15. Qb3 Kh8 16. Rfd1 ({Avoid the trap} 16. Qxb7 $2 Rfb8 $19) 16... Rad8 17. Be2 b5 18. Nh4 Ne5 19. Rc2 Bb8 20. Rcd2 Qf7 (20... Bc8 $142) 21. Qa3 Rde8 22. Qxa6 {Hoping for Bxf6.} Ne4 23. Bh5 g6 24. Nhxg6+ hxg6 {[#]} 25. Nxg6+ (25. Rxd7 $1 $16 {[%mdl 512]} Qg8 (25... Nxd7 26. Nxg6+) 26. Nxg6+ Nxg6 27. h4) 25... Nxg6 $11 26. Rxd7 Qg8 27. Bh6 {And now Bxg6 would win.} Rf7 28. Qxb5 {Black must now prevent Rxf7.} Nf6 $40 {[%mdl 128] Black attacks.} ({Not} 28... Nh4 $2 29. g3 $18) 29. Rxf7 Qxf7 30. Bf3 Nh4 $1 {[%cal Rh4f3]} 31. Bc6 $2 {[%mdl 8192] [#] Now White is beyond hope.} (31. Qe2 $11) 31... Qh5 $1 $19 {[%csl LRd1,LRh6][%mdl 512]} 32. Rd4 {[#]} Bxh2+ $1 {[%mdl 512]} 33. Kh1 $2 (33. Kf1 Rb8 34. Qa5 Qxh6 35. Rd8+ Kh7 36. Qa7+ Qg7 37. Rxb8 Qxa7 38. Rb7+ Qxb7 39. Bxb7) (33. Kxh2 Nf3+) 33... Rb8 34. Qc4 Be5 35. g4 Nxg4 {[%mdl 64] Double Attack. Black mates.} 36. Qxe6 Nf3+ 37. Kg2 Qh2+ {Accuracy: White = 65%, Black = 81%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.35"]
[White "Radovanovic, Mihajlo"]
[Black "Frolyanov, Dmitry"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "2458"]
[BlackElo "2556"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,94,6,1,6,10,9,5,13,0,8,3,7,0,0,0,0,0,0,-8,0,-6,0,-33,-39,-43,0,13,13,11,2,0,18,17,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-3,-10,-175,-175,-175,-175,-164,-35,-399,-372,-581,-489,-926,-727,-791,-779,-1027,-916,-2071,-1850,-5389,-2991,-29974,-29976]} 1. Nf3 d5 2. c4 e6 3. g3 dxc4 4. Qa4+ Nd7 5. Qxc4 a6 6. Bg2 b5 7. Qc2 Bb7 8. O-O Ngf6 9. a4 c5 10. d3 Be7 11. Nc3 Qb6 {A13: English Opening: 1...e6.} 12. Qb3 {[%cal Ra4b5]} b4 13. Nb1 {[%cal Bc3b1,Bb1d2,Bd2c4][%mdl 32]} a5 {The position is equal.} 14. Nbd2 O-O 15. Nc4 Qa6 16. e4 Nb6 17. Nfe5 Nxc4 18. Nxc4 Nd7 {[#]} 19. Be3 $146 ({Predecessor:} 19. Bf4 Nb8 20. Qd1 Nc6 21. Qg4 Kh8 22. Rad1 Rad8 23. Qh5 Kg8 24. Be3 Nd4 25. f4 {1-0 (63) Manor,I (2445)-Lukacs,P (2460) Borsodtavho 1991}) 19... Rac8 20. Rac1 Rfd8 21. Bh3 Bf6 22. f4 Bd4 (22... g6 $15) 23. Bxd4 $11 cxd4 24. f5 Nc5 25. Qd1 $1 Nxe4 26. fxe6 fxe6 {And now ...Ng5 would win.} 27. dxe4 Rxc4 28. Rxc4 Qxc4 29. Qf3 {White threatens Qf7+ and mate.} Qc8 $1 ({Not} 29... e5 $2 30. b3 $18) 30. Qf7+ Kh8 {Hoping for ...Qa8.} 31. Bxe6 Qa8 $36 {[%mdl 2048] Black fights for an advantage.} 32. Bf5 {Intending Qh5! and mate.} Bc8 $1 33. Rc1 Bxf5 34. Rc7 {[%csl Gc7][%cal Rf7g7]} Rg8 35. Qxf5 {[%mdl 4096] Endgame KQR-KQR} d3 36. Rd7 Qc8 {aiming for ...Rf8.} 37. Rxd3 $2 (37. Kg2 $1 $11 {and White stays safe.}) 37... Qc1+ $19 38. Qf1 Qxb2 39. Rd5 {[#]} Qc2 ({Black should play} 39... h6 $1 $19 {...b3 is the strong threat.} 40. Qd1 Rf8) 40. Qd3 $2 {[%mdl 8192]} (40. Rxa5 $15 h6 41. Rf5) 40... Qxa4 41. Qd4 (41. Qb5 {was called for.} Qb3 42. Qxa5) 41... Qa2 42. Rd7 (42. Rd8 $142 h6 43. Rxg8+ Qxg8 44. g4) 42... Qb1+ 43. Kg2 h6 44. Rb7 Qc2+ 45. Kg1 b3 46. h4 {[#]} a4 $1 {[%mdl 576] Deflection} 47. Qxa4 Rd8 {Accuracy: White = 56%, Black = 88%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.36"]
[White "Chanda, Sandipan"]
[Black "Kardashevskiy, Evgeny"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2552"]
[BlackElo "2437"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,89,8,16,12,26,24,23,20,25,20,39,35,48,43,39,35,33,32,29,14,18,0,116,123,123,123,131,126,133,49,66,60,112,0,147,145,157,166,242,242,242,234,237,231,339,302,593,585,575,574,558,551,447,26,26,26,26,24,25,23,1015,1014,1011,465,989,989,1822,1813,1729,1616,29964,29969,29964,1772,29974,29975]} 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 Nbd7 8. Nge2 h6 9. Bh4 {D35: Queen's Gambit Declined: Exchange Variation.} Nh5 10. Bxe7 Qxe7 11. Qd2 $1 {[%mdl 4] White has an edge. outshines the older 11.0-0.} Nb6 12. f3 Be6 13. O-O O-O 14. g4 Nf6 15. Kh1 Rfe8 16. Rae1 Bd7 17. Ng3 c5 18. Rg1 Nc4 (18... Rad8 $11) 19. Bxc4 $1 $16 dxc4 20. Nf5 $1 {[%cal Rf5e7]} Bxf5 21. gxf5 cxd4 22. exd4 ({White should play} 22. e4 $1 $16) 22... Qf8 $14 23. Ne4 Kh8 (23... Kh7 $1 $14) 24. Rg2 ({Better is} 24. Nxf6 $16 gxf6 25. Re4) 24... Rad8 (24... Qe7 $11) 25. Reg1 $1 $16 {Hoping for Nxf6.} Nxe4 26. fxe4 $40 {[%mdl 128] Black is in trouble.} f6 (26... g5 $142) 27. Rxg7 $18 Qxg7 28. Rxg7 Kxg7 {[%mdl 4096] Endgame KQ-KRR} 29. Qe3 Kf7 (29... Rd7 $142 30. Kg2 Kh7) 30. Kg2 ({Less strong is} 30. Qxh6 Rxe4 31. Qh7+ Kf8 $16) 30... Rd7 $2 (30... Rd5 31. Qxh6 Rxe4) 31. e5 fxe5 32. dxe5 Rd5 33. e6+ $1 Ke7 {[#]} 34. Qxh6 $2 ({White must play} 34. Qe4 $1 $18 {[%cal Re4d5]} Kd6 35. f6 Rd2+ 36. Kf3 Rd3+ 37. Kg4 Rxe6 38. Qf4+ {[%mdl 64] Double Attack} Kd5 39. f7) 34... Rg8+ $11 35. Kh3 Rd3+ 36. Kh4 {Threatens to win with Qh7+.} Rd4+ 37. Kh5 {Strongly threatening Qh7+.} Rgg4 $2 {[%mdl 8192] Loses the game.} (37... Rdg4 $11) 38. Qh7+ $18 Kf6 39. Qf7+ Ke5 {( -> ...Rh4+)} 40. h3 Rh4+ 41. Kg5 Rxh3 42. Qc7+ Kd5 43. Qxb7+ Ke5 44. Qc7+ (44. Qb8+ $142 Kd5 45. e7 Re3 46. e8=Q Rxe8 47. Qxe8 Kc5 48. Qc8+ Kb6 49. Qe6+ Kc5 {[#]} 50. Qe3 $1 {[%mdl 512]}) 44... Kd5 45. e7 {Accuracy: White = 79%, Black = 48%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.37"]
[White "Sengupta, Deep"]
[Black "Zarubitski, Viachaslau"]
[Result "1/2-1/2"]
[ECO "B44"]
[WhiteElo "2534"]
[BlackElo "2432"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,81,3,14,0,24,17,21,18,55,42,53,25,25,11,20,16,24,16,42,47,41,39,45,41,70,59,49,25,29,23,15,23,10,0,12,0,0,0,0,-7,-7,-8,0,-8,-5,-16,-15,-17,-11,-15,-8,-13,0,0,0,0,0,-10,-8,-8,-8,-8,-8,-59,0,0]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. c4 Nf6 6. Nc3 Bb4 7. Nxc6 bxc6 8. Bd3 e5 9. O-O O-O 10. Qe2 $1 {[%mdl 4] is recently more successful than 10.Bg5. B44: Sicilian: Taimanov: 5 Nb5.} Qe7 11. Na4 d5 12. Bg5 {[#]} dxc4 $146 ({Predecessor:} 12... dxe4 13. Bxe4 h6 14. Bxf6 Qxf6 15. c5 Rd8 16. Rfd1 Bf5 17. g3 Bxe4 18. Qxe4 Rd2 {½-½ (41) Edouard,R (2636)-Baramidze,D (2614) Germany 2019}) 13. Bxc4 h6 14. Bxf6 Qxf6 15. Rfd1 Ba5 16. Rd3 Qe7 17. Rc1 Bb7 18. Qe3 Rfd8 19. Rxd8+ Bxd8 20. Bb3 Qg5 21. Qxg5 (21. Nc5 {is interesting.} Qxe3 22. fxe3 Bb6 23. Kf2 Rb8 24. Kf3) 21... Bxg5 22. Rc5 Bf6 23. Ra5 Bc8 24. h3 Kf8 25. Kf1 g6 26. Ke2 Be7 27. a3 ({Reject} 27. Rxe5 f6 $17) 27... f6 28. Bc4 Bd8 29. Rc5 Ke7 30. h4 Rb8 {next ...Kd6 is good for Black.} 31. b4 Kd6 {[#] aiming for ...Bb6.} 32. Bf7 g5 33. hxg5 hxg5 34. Be8 Bb7 {And now ...Bb6 would win.} 35. Rc2 Bb6 36. Nxb6 axb6 37. Bg6 c5 38. Rd2+ Ke7 39. Bf5 {[#] Threatens to win with Rd7+.} Bc6 40. Rc2 ({White should try} 40. bxc5 $11 bxc5 41. Kd3) 40... Kd6 (40... Ba4 $15 41. Rc1 c4) 41. Rd2+ {Accuracy: White = 93%, Black = 84%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.38"]
[White "Stupak, Kirill"]
[Black "Badelka, Olga"]
[Result "0-1"]
[ECO "A04"]
[WhiteElo "2518"]
[BlackElo "2404"]
[Annotator "RC"]
[PlyCount "80"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/6000+30:20/3000+30:900+30"]

1. Nf3 {[%emt 0:06:58]} c5 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:35]} g6 {[%emt 0:00:16]} 3. d4 {[%emt 0:05:53]} Bg7 {[%emt 0:00:33]} 4. d5 {[%emt 0:04:42]} d6 {[%emt 0:00:48]} 5. g3 {[%emt 0:05:17]} e6 {[%emt 0:00:28]} 6. Nc3 {[%emt 0:00:26]} Ne7 {[%emt 0:02:05]} 7. Bg2 {[%emt 0:01:57]} O-O {[%emt 0:03:10]} 8. O-O {[%emt 0:00:13]} a6 {[%emt 0:00:41]} 9. a4 {[%emt 0:04:18]} e5 {[%emt 0:07:30]} 10. Ne1 {[%emt 0:04:04]} f5 {[%emt 0:00:51]} 11. Nd3 {[%emt 0:01:28]} Nd7 {[%emt 0:03:11]} 12. e4 {[%emt 0:04:00]} Nf6 {[%emt 0:03:50]} 13. f4 {[%emt 0:01:43]} fxe4 {[%emt 0:06:26]} 14. Nxe4 {[%emt 0:00:56]} Nxe4 {[%emt 0:09:04]} 15. Bxe4 {[%emt 0:01:03]} exf4 {[%emt 0:01:52]} 16. Nxf4 {[%emt 0:04:43]} Qa5 {[%emt 0:07:56]} 17. Ra3 {[%emt 0:11:52]} Qb4 {[%emt 0:09:51]} 18. Qb3 {[%emt 0:40:54]} g5 {[%emt 0:14:58]} 19. Ng2 {[%emt 0:00:28]} Bf5 {[%emt 0:15:34]} 20. Bxf5 {[%emt 0:06:36]} Nxf5 {[%emt 0:00:06]} 21. Qxb4 {[%emt 0:01:18]} cxb4 {[%emt 0:00:06]} 22. Raf3 {[%emt 0:01:04]} Nd4 {[%emt 0:02:03]} 23. Rxf8+ {[%emt 0:00:25]} Rxf8 {[%emt 0:00:05]} 24. Rxf8+ {[%emt 0:00:07]} Kxf8 {[%emt 0:00:05]} 25. Kf2 {[%emt 0:00:44]} Nb3 {[%emt 0:07:36]} 26. Bxg5 {[%emt 0:00:01]} Bxb2 {[%emt 0:00:04]} 27. Nf4 {[%emt 0:00:26]} Na5 {[%emt 0:01:15]} 28. Ke2 {[%emt 0:01:13]} b3 {[%emt 0:04:49]} 29. Kd3 {[%emt 0:00:34]} Be5 {[%emt 0:00:43]} 30. Ne6+ {[%emt 0:00:26]} Ke8 {[%emt 0:00:32]} 31. Bc1 {[%emt 0:00:33]} b2 {[%emt 0:00:16]} 32. Bxb2 {[%emt 0:00:12]} Bxb2 {[%emt 0:00:05]} 33. c5 {[%emt 0:00:07]} Ke7 {[%emt 0:02:06]} 34. Ke4 {[%emt 0:01:10]} dxc5 {[%emt 0:00:53]} 35. Nxc5 {[%emt 0:00:08]} Kd6 {[%emt 0:00:15]} 36. Ne6 {[%emt 0:00:33]} Nb3 {[%emt 0:00:40]} 37. Ng5 {[%emt 0:00:27]} Nc5+ {[%emt 0:00:47]} 38. Kf5 {[%emt 0:00:05]} h5 {[%emt 0:02:02]} 39. Kg6 {[%emt 0:00:14]} Kxd5 {[%emt 0:00:45]} 40. Kxh5 {[%emt 0:00:00]} Nxa4 {[%emt 0:00:00]} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.39"]
[White "Buksa, Nataliya"]
[Black "Raja Harshit"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2403"]
[BlackElo "2472"]
[Annotator "ChessBase"]
[PlyCount "56"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/6000+30:20/3000+30:900+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} d6 {[%emt 0:00:06]} 3. d4 {[%emt 0:00:00]} cxd4 {[%emt 0:00:07]} 4. Nxd4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:23]} 5. Nc3 {[%emt 0:00:00]} a6 {[%emt 0:00:13]} 6. Bd3 {[%emt 0:00:30]} e5 {[%emt 0:00:31]} 7. Nde2 {[%emt 0:00:06]} Be7 {[%emt 0:00:07]} 8. O-O {[%emt 0:00:21]} Be6 {[%emt 0:00:05]} 9. f4 {[%emt 0:00:32]} O-O {[%emt 0:00:45]} 10. a4 {[%emt 0:01:44]} Qc7 {[%emt 0:01:16]} 11. Kh1 {[%emt 0:12:49]} Nbd7 {[%emt 0:09:14]} 12. f5 {[%emt 0:14:27]} Bc4 {[%emt 0:00:06]} 13. b3 {[%emt 0:00:05]} d5 {[%emt 0:25:57]} 14. exd5 {[%emt 0:25:52]} Bxd5 {[%emt 0:00:32]} 15. Nxd5 {[%emt 0:00:08]} Nxd5 {[%emt 0:00:07]} 16. Ng3 {[%emt 0:05:25]} N7f6 {[%emt 0:07:58]} 17. c4 {[%emt 0:06:12]} Nb4 {[%emt 0:06:14]} 18. Be4 {[%emt 0:00:04]} Rad8 {[%emt 0:02:26]} 19. Qe2 {[%emt 0:00:04]} Nxe4 {[%emt 0:09:36]} 20. Nxe4 {[%emt 0:01:33]} f6 {[%emt 0:00:05]} 21. Ba3 {[%emt 0:09:50]} Nc6 {[%emt 0:02:01]} 22. Bxe7 {[%emt 0:01:14]} Qxe7 {[%emt 0:03:12]} 23. c5 {[%emt 0:01:28]} Qf7 {[%emt 0:05:46]} 24. Nd6 {[%emt 0:06:47]} Qd5 {[%emt 0:02:50]} 25. b4 {[%emt 0:09:50]} Nd4 {[%emt 0:03:02]} 26. Qd2 {[%emt 0:06:38]} Rd7 {[%emt 0:01:35]} 27. a5 {[%emt 0:00:28]} g6 {[%emt 0:03:40]} 28. Ra3 {[%emt 0:05:28]} g5 {[%emt 0:05:42]} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.40"]
[White "Aditya Mittal"]
[Black "Iljiushenok, Ilia"]
[Result "1/2-1/2"]
[ECO "D85"]
[WhiteElo "2427"]
[BlackElo "2519"]
[Annotator "TA"]
[PlyCount "125"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,125,9,9,9,10,14,67,64,74,70,64,66,72,69,66,58,66,66,66,65,83,83,76,79,91,87,90,90,91,91,111,112,133,119,266,258,237,197,179,114,179,179,179,172,161,131,179,179,186,181,180,175,169,154,172,133,144,132,165,135,200,195,195,174,177,162,214,208,209,203,186,34,39,0,178,155,177,177,156,0,155,153,147,101,36,0,131,125,138,27,32,0,127,38,43,37,30,32,62,54,196,10]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Be3 Qa5 9. Qd2 Nc6 10. Rb1 a6 11. Rc1 cxd4 12. cxd4 Qxd2+ 13. Kxd2 f5 14. e5 {D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 Nf3.} O-O $1 {[%mdl 4] is now more promising than 14...Be6.} 15. Bc4+ Kh8 {[#]} (15... e6 $11) 16. g3 $146 {White is slightly better.} ({Predecessor:} 16. Bf4 h6 17. h4 Rd8 18. Ke3 e6 19. Bb3 Bd7 20. Rc3 Bf8 21. Rhc1 Kg7 22. d5 exd5 23. Bxd5 {0-1 (38) Smirnova,E (2165)-Gorozhanin,M (2332) Kostroma 2014}) 16... Na5 17. Bd5 $1 e6 18. Rc5 exd5 19. Rxa5 Bd7 20. Rc5 Rfc8 21. Rb1 Bc6 22. Ng5 Kg8 23. Ne6 Bf8 24. Nxf8 Rxf8 25. Bg5 Rae8 26. Ke3 Re6 27. Kf4 Rf7 28. h4 Kg7 29. Rb3 h5 (29... h6 $16 {was called for.}) 30. f3 Kh7 31. Rb2 Kg7 32. Rh2 (32. Bf6+ $18 Rfxf6 33. exf6+ Kxf6 34. Rc1) 32... Kh7 (32... Rf8 $16 33. Rb2 Rb8) 33. Bf6 $18 Kh6 34. Rc1 Rf8 35. Rg2 Rf7 36. g4 fxg4 37. fxg4 hxg4 38. Rxg4 Bb5 39. Rg3 Be2 40. Re3 Bc4 41. a3 b5 42. Rg1 a5 (42... Be2 $16 {was worth a try.} 43. Rxe2 Rfxf6+ 44. Ke3 (44. exf6 Rxe2 45. Rf1 a5 $14) 44... Rf5) 43. Reg3 Rfxf6+ 44. exf6 Rxf6+ {[%mdl 4096] Endgame KRR-KRB} 45. Ke5 Rb6 (45... Ra6 $142 46. h5 gxh5) 46. h5 $1 gxh5 47. Rg8 {[%cal Rg8h8]} Kh7 48. R8g7+ $2 (48. R1g7+ $1 $18 Kh6 49. Rg3) 48... Kh6 $14 49. Rg8 (49. R1g3 $14) 49... Kh7 $18 50. R1g7+ $1 {[%mdl 1024] White has strong compensation.} Kh6 51. Rg3 {[%cal Rg8h8]} Kh7 52. R3g7+ Kh6 53. Rg2 $1 {[%cal Rg8h8]} Kh7 54. R8g5 Kh6 55. Rg8 (55. Rf5 $14) 55... Kh7 $16 56. Ra8 b4 {[#]} 57. Ra7+ ({White must play} 57. axb4 $1 $16 axb4 58. Rh2) 57... Kh6 $11 58. Ra8 (58. Rxa5 $14 b3 59. Ra8) 58... Kh7 $16 {[#]} 59. Rxa5 (59. axb4 $1 $16 axb4 60. Rh2) 59... b3 $14 {Hoping for ...b2.} 60. Ra7+ Kh6 61. Ra8 {[%cal Ra8h8]} Kh7 {aiming for ...b2.} 62. Rb2 $1 {a4 is the strong threat.} h4 ({Better is} 62... Bd3 $1 $14) 63. Kf4 $2 {Accuracy: White = 80%, Black = 71%.} ({White has to play} 63. a4 $18) 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.41"]
[White "Karthik Venkataraman"]
[Black "Makarian, Rudik"]
[Result "1-0"]
[ECO "C25"]
[WhiteElo "2483"]
[BlackElo "2414"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,105,18,12,20,0,0,10,15,7,0,-6,0,0,0,-2,0,-6,4,-14,21,10,23,0,0,4,75,63,62,74,62,62,102,100,113,104,106,87,159,138,135,149,326,322,312,292,280,183,181,189,187,202,180,184,322,222,210,215,219,173,182,143,143,143,143,143,143,143,136,136,136,136,136,135,215,144,134,109,135,145,196,182,163,168,450,439,688,658,785,729,669,686,641,549,5722,3651]} 1. e4 e5 2. Nc3 Nc6 3. Bc4 Bc5 4. d3 d6 5. Nf3 Nf6 6. h3 h6 7. Na4 Bb6 {C50: Hungarian Defence and Giuoco Pianissimo.} 8. O-O Na5 9. Bb3 O-O {The position is equal.} 10. Nxb6 axb6 11. Be3 (11. Ba4 {is interesting.} Bd7 12. Bxd7 Qxd7 13. c4 Nc6 14. a4) 11... Nxb3 12. axb3 Rxa1 13. Qxa1 Bd7 {[#]} 14. Qa7 $146 ({Predecessor:} 14. Nd2 Kh7 15. f4 exf4 16. Rxf4 Qe7 17. Qf1 Nd5 18. exd5 Qxe3+ 19. Qf2 Qxf2+ 20. Kxf2 {0-1 (56) Neferanovic,I (1732)-Patarcic,D (2001) Sv Filip i Jakov 2007}) 14... Bc6 15. c4 Nd7 16. b4 b5 17. cxb5 Bxb5 18. Qxb7 Qb8 (18... Bxd3 $11 {keeps the balance.} 19. Rd1 Be2) 19. Qd5 $16 Nf6 20. Qb3 Qa8 21. Rc1 $36 {[%mdl 2048] Black is under pressure.} c6 22. Nh4 d5 23. Bc5 Re8 24. Nf5 Qa6 ({Better is} 24... Re6) 25. Nd6 Re6 26. Qd1 Bxd3 $2 (26... Qa8 $16 {is a better defense.} 27. Ra1 Qd8) 27. Ra1 $18 Be2 28. Rxa6 Bxd1 29. Rxc6 Nxe4 30. Rc8+ Kh7 31. Nxe4 ({Don't do} 31. Nxf7 Bh5 $16) 31... dxe4 {[%mdl 4096] Endgame KRB-KRB} 32. b5 {[%cal Bb4b5,Bb5b6][%mdl 32] b6 is the strong threat.} Bb3 (32... e3 $142) 33. b6 {aiming for b7.} Bd5 34. Rd8 Bc6 35. b4 e3 36. Bxe3 {Black must now prevent b5!} Re7 37. Bc5 Rb7 38. f3 f6 39. Kf2 Kg6 40. Ke3 Kf7 41. Rd6 Bd7 42. Ke4 Be6 (42... Ke8 $16 43. h4 h5) 43. Rd8 Bc4 44. Rc8 Rd7 45. Bd6 Ba6 (45... Bb3 $16 {was called for.}) 46. Rc6 $1 Bb7 47. Kd5 f5 $2 (47... h5 48. b5 h4) 48. Kc5 $1 {White is clearly winning.} e4 {[#]} (48... Ke8 $142 49. Bxe5 h5) 49. fxe4 $1 {[%mdl 512]} fxe4 50. Rc7 Ke6 {[#]} 51. Rxb7 $1 Rxb7 {[#]} 52. Bc7 $1 {Hoping for Kc6.} Kd7 53. Kd4 {Accuracy: White = 84%, Black = 51%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.23"]
[Round "5.42"]
[White "Kozak, Adam"]
[Black "Nikitenko, Mihail"]
[Result "1/2-1/2"]
[ECO "D11"]
[WhiteElo "2523"]
[BlackElo "2440"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,85,19,15,10,27,43,31,26,30,16,23,12,23,0,28,23,28,28,31,-25,2,0,10,0,21,-25,0,0,0,-10,0,0,10,16,3,9,34,34,43,-18,0,0,0,0,0,-80,-80,-180,0,-7,0,0,61,66,86,71,52,64,39,34,37,-10,54,35,35,42,45,47,41,36,37,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. g3 Bf5 5. Nc3 e6 6. Nh4 {D11: Slav Defence: 3 Nf3 sidelines and 3...Nf6 4 e3 Bg4.} Bg4 7. h3 Bh5 8. g4 {White is slightly better. 8.Qb3 is the fancy move.} Bg6 9. Qb3 Qb6 10. Nxg6 hxg6 11. Bg2 Nbd7 12. e3 Qc7 13. cxd5 exd5 14. Qc2 (14. Bd2 $14) 14... Bd6 15. Bd2 Nb6 16. b3 {[#]} Qe7 $146 ({Predecessor:} 16... a5 17. a4 Nc8 18. Bf3 Qb6 19. h4 Bb4 20. g5 Nd7 21. O-O-O Nd6 22. Kb2 Kf8 23. Ka2 Re8 {½-½ (127) Gretarsson,H (2530)-Gretarsson,H (2462) Kopavogur 2014}) 17. Qd3 Nbd7 18. O-O-O Bb4 19. Kb1 Bxc3 20. Bxc3 a5 21. f3 a4 22. e4 O-O 23. e5 Ne8 24. b4 ({Better is} 24. h4 $14) 24... a3 25. f4 Nb6 26. Rdf1 Nc7 27. f5 (27. h4 $1 $11) 27... Nb5 $17 28. Ka1 {[#]} (28. h4 $17) 28... Nxc3 $2 (28... Na4 $1 $19 29. f6 gxf6 30. exf6 Qd6) 29. Qxc3 $11 Ra4 30. Rb1 $1 gxf5 (30... Nc4 $11) 31. gxf5 $14 {Hoping for f6!} Qg5 {[#]} 32. Bf1 $1 Qxf5 33. Bd3 Qf2 34. Bc2 Raa8 35. Qd3 {[%csl Gc2][%cal Rd3h7]} Qh4 (35... f5 $1 $11) 36. Rhg1 {aiming for Rg4!} f5 $1 37. exf6 $1 Rxf6 38. Rg4 Qh6 39. Rbg1 {[%mdl 1024] White has compensation.} Rf7 40. Rg6 (40. Qg3 $5 {[%cal Rc2g6]} Nd7 41. Rg6 $11) 40... Qh4 $1 {[#]The position is equal.} 41. R6g4 $1 {[%mdl 512]} Qf6 42. Rg6 ({But not} 42. Qh7+ Kf8 $15) 42... Qh4 $1 {[#]} 43. R6g4 $1 {[%mdl 512] Accuracy: White = 78%, Black = 77%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.1"]
[White "Petrosyan, Manuel"]
[Black "Mamedov, Rauf"]
[Result "1/2-1/2"]
[ECO "E73"]
[WhiteElo "2590"]
[BlackElo "2643"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,71,21,30,57,24,26,4,8,4,7,8,24,27,36,7,37,26,21,0,0,0,0,6,8,-27,-22,-32,11,0,0,11,5,18,19,29,20,8,4,15,9,8,0,2,8,8,12,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Be3 Nc6 7. d5 Ne5 {E73: King's Indian: Averbakh Variation without 6...c5.} 8. Nf3 (8. f4 $5 {[%cal Rf4e5]} Ned7 9. g4 $11) 8... Nfg4 9. Bd2 e6 10. Nxe5 Nxe5 11. O-O {[#]} exd5 $146 ({Predecessor:} 11... f5 12. f4 Ng4 13. Bxg4 fxg4 14. Be3 e5 15. Qd2 Bd7 16. fxe5 Bxe5 17. Rxf8+ Qxf8 18. Bd4 Bf4 19. Be3 Be5 20. Bd4 Bf4 {½-½ (21) Parkhov,Y (2354)-Zanan,E (2505) Netanya 2019}) 12. cxd5 f5 13. f4 Nf7 14. exf5 Bxf5 15. Be3 c5 16. dxc6 bxc6 17. Qd2 d5 {[#] Threatens to win with ...d4.} 18. Rfd1 Re8 19. Rac1 Qe7 (19... Qd6 $5 {[%cal Rd5d4]} 20. Bf2 Bh6 $15) 20. Bd4 Bxd4+ 21. Qxd4 Rab8 {Strongly threatening ...Rb4.} 22. Bf3 Qb4 23. Qxb4 Rxb4 24. Rd2 {The position is equal.} Rxf4 25. Ne2 Rc4 26. Rxc4 dxc4 27. Bxc6 Rc8 28. Bd5 Kg7 29. Bxf7 Kxf7 $11 {[%mdl 4096] Endgame KRB-KRN} 30. Kf2 Kf6 31. Ke3 Ke5 32. Nc3 Bd3 33. Rf2 Bf5 34. Rd2 Bd3 35. Rf2 Bf5 36. Rd2 {Accuracy: White = 92%, Black = 95%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.2"]
[White "Sjugirov, Sanan"]
[Black "Zvjaginsev, Vadim"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "2674"]
[BlackElo "2623"]
[Annotator "TA"]
[PlyCount "109"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,109,0,0,-6,34,33,24,0,0,0,0,-44,-45,-31,-33,-36,-38,-46,0,-7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,12,-24,0,0,33,0,70,0,62,-8,-31,-78,-2,-37,18,22,18,0,0,0,1,1,1,1,1,1,1,1,1,2,66,71,68,68,58,58,174,163,154,176,252,264,257,257,261,265,259,258,193,179,320,330,308,289,531,520,730,692,788,908,883,864,1079,1063,1339,1237,1216,1215]} 1. c4 e6 2. g3 d5 3. Bg2 a6 4. Nf3 dxc4 5. O-O Nf6 6. Qc2 {A13: English Opening: 1...e6.} Nbd7 7. a4 Nc5 8. Na3 {[#]White has an edge.} b5 $146 {[%mdl 512]} ({Predecessor:} 8... Nb3 9. Rb1 Bxa3 10. bxa3 b5 11. Bb2 Bb7 12. d3 O-O 13. axb5 axb5 14. dxc4 bxc4 {1-0 (31) Tomashevsky,E (2688)-Sjugirov,S (2585) Ulan Ude 2009}) 9. axb5 axb5 {[#]} 10. Nd4 $1 {[%mdl 512]} Rxa3 $1 ({Avoid the trap} 10... Qxd4 $2 11. Nxb5 (11. Bxa8 Nb3 $11) 11... Rxa1 12. Nxd4 $18) 11. Bc6+ Ke7 12. Rxa3 Qxd4 13. Bxb5 h5 14. Rc3 Bb7 {Threatens to win with ...h4.} 15. Rxc4 {[%mdl 64] Double Attack} Qd5 {[%csl Gb7][%cal Rd5h1]} 16. f3 Ncd7 17. Bc6 Bxc6 18. e4 $1 {[%cal Re4d5]} Qb5 19. Rxc6 h4 {...hxg3 is the strong threat.} 20. g4 Ne8 21. d4 f6 22. Be3 Kf7 23. h3 Bb4 24. Ra1 {[%mdl 1024] White has compensation.} Ba5 (24... g5 $11) 25. Kg2 (25. d5 $1 $14 e5 26. Qa4 Qxa4 27. Rxa4) 25... Nd6 {[#]} ({Better is} 25... Bb6 $11) 26. Bf2 (26. e5 $1 $14 {[%mdl 512]} Nb7 (26... fxe5 27. Rxa5) 27. b4) 26... Bb6 $11 27. Ra3 {[#]} Rb8 ({Black should play} 27... Rd8 $1 $17) 28. Rcc3 Rb7 ({Black should try} 28... Rc8 $15) 29. Rcb3 Qc4 30. Rc3 Qb5 31. Rcb3 Qc4 32. Qxc4 Nxc4 33. Ra4 $36 {[%mdl 2048] White is pushing.} Nd6 34. Bxh4 e5 35. Bf2 exd4 36. Bxd4 c5 (36... g5 $11) 37. Bf2 $14 g5 38. Ra6 Nc4 39. h4 Rc7 {Black is on the road to losing.} (39... gxh4 $14 40. Bxh4 Nf8) 40. h5 Rc6 41. Bg3 Nce5 (41... Re6 $142 42. Bh2 Rc6) 42. Bxe5 $1 $18 fxe5 43. Rd3 Ke7 44. Rd5 c4 45. Kf1 Re6 46. Rb5 Kd8 (46... Rf6 $142) 47. Ra8+ Kc7 48. Rg8 Kc6 $2 (48... Rf6 49. Ke2 (49. Rxg5 Rxf3+ 50. Kg2 Rf2+ 51. Kg3 Be3 $16) 49... Nc5 50. Rg7+ (50. Rxg5 Ne6 $18) 50... Kc6) 49. Rd5 {White is clearly winning.} Re7 50. Rg6+ Kc7 51. h6 Bd4 52. Ke2 Bxb2 53. Rg7 Rxg7 54. hxg7 Nf6 55. Ra5 {Accuracy: White = 81%, Black = 54%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.3"]
[White "Smirin, Ilia"]
[Black "Sarana, Alexey"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "2615"]
[BlackElo "2656"]
[Annotator "TA"]
[PlyCount "25"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,25,27,21,29,35,15,10,0,0,0,7,0,0,0,0,-18,-13,-13]} 1. e4 c5 2. Nc3 d6 3. Nge2 Nf6 4. h3 a6 5. g4 b5 {[#]} 6. Bg2 $146 {[#] e5! is the strong threat. B23: Closed Sicilian: Lines without g3.} ({Predecessor:} 6. g5 Nfd7 7. Ng3 Bb7 8. Bg2 e6 9. d3 Be7 10. f4 d5 11. O-O b4 12. Nce2 dxe4 13. Nxe4 {0-1 (36) Bartel,M (2513)-Magalashvili,D (2448) Istanbul 2005}) 6... Bb7 7. O-O Nc6 {The position is equal.} 8. d4 cxd4 9. Nxd4 Nxd4 10. Qxd4 e5 11. Qd3 Be7 12. a3 O-O 13. Be3 {A rather calm draw.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.4"]
[White "Adhiban, B.."]
[Black "Savchenko, Boris"]
[Result "1/2-1/2"]
[ECO "C18"]
[WhiteElo "2654"]
[BlackElo "2573"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,64,12,45,0,34,0,13,2,18,0,0,-8,0,0,28,28,17,0,21,22,20,-158,-60,-86,-25,-16,-29,-29,-29,-116,-91,-75,-35,-29,-35,-31,0,0,0,-156,-172,-124,0,0,0,0,0,0,0,0,0]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qa5 7. Bd2 Qa4 8. Qg4 g6 9. h4 {C18: French: 3 Nc3 Bb4: Main line: 7 h4 and 7 Qg4.} h6 {[#]} 10. Qd1 $146 (10. h5 $5 {[%cal Rh5g6]} g5 11. f4 $14) ({Predecessor:} 10. Bd3 Nc6 11. Qf4 c4 12. Be2 Bd7 13. Bd1 Rh7 14. Qg3 Rg7 15. h5 g5 16. f4 g4 {1-0 (59) Jacobson,B (2470)-Narayanan,S (2185) Charlotte 2020}) 10... Nc6 {[%cal Bb8c6,Bc6e5,Be5c4][%mdl 32]} 11. dxc5 Nxe5 {[#]} 12. c4 $1 {[%mdl 512]} Nxc4 (12... dxc4 13. Bc3) 13. Bc3 f6 14. Bd3 Kf7 15. Qf3 {Strongly threatening Ne2.} Qc6 16. Rd1 e5 17. Bxc4 $1 dxc4 18. Rd6 $2 (18. Qxc6 $11 bxc6 19. Rd8) 18... Qxf3 (18... Qxc5 $17 19. Bb4 Qc7 20. Qd5+ Kg7) 19. Nxf3 Be6 (19... Bf5 $17 {aiming for ...Ne7.} 20. Nd2 Ne7) 20. O-O $11 Ne7 {Hoping for ...Nf5.} 21. Rb1 Bd5 $36 {[%mdl 2048] Black is pushing.} 22. Nd2 (22. Nh2 $11) 22... g5 23. Nf1 gxh4 24. Ne3 Bc6 25. f4 $1 {[%cal Rf4e5]} Rhg8 (25... Nc8 $5 {[%cal Rc8d6]} 26. Rxf6+ {[%mdl 64] Remove Defender} Kxf6 27. Bxe5+ Kg6 28. Bxh8 Ne7 $15) 26. fxe5 Rg3 27. e6+ $2 {[#]} ({White should try} 27. Rxf6+ $11 Kg8 28. Bd4) 27... Kg6 $1 $17 28. Re1 Nf5 (28... Rg8 $17 {White must now prevent ...Nf5.} 29. Re2 h3) 29. Nxf5 $11 {The position is equal.} Kxf5 30. e7 {With the idea Re2.} Re8 ({But not} 30... Rxc3 $6 31. Rd8 $16) (30... Bxg2 $6 31. Bxf6 Bc6+ 32. Kh2 $16) 31. Rxf6+ Kg5 32. Ree6 {Bd2+ is the strong threat.} Rxc3 {[%mdl 64] Double Attack. Accuracy: White = 71%, Black = 60%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.5"]
[White "Jumabayev, Rinat"]
[Black "Aleksandrov, Aleksej"]
[Result "1/2-1/2"]
[ECO "D39"]
[WhiteElo "2646"]
[BlackElo "2592"]
[Annotator "TA"]
[PlyCount "116"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,116,27,39,39,34,8,13,35,34,2,33,33,25,40,26,29,30,33,35,26,33,26,31,17,29,27,20,32,41,0,0,0,0,0,61,39,51,21,100,56,64,15,15,8,8,-8,-8,-8,-8,-349,0,0,0,0,0,0,0,0,0,0,0,-39,0,-18,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-8,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 dxc4 6. e4 c5 7. Bxc4 cxd4 8. Nxd4 Bxc3+ 9. bxc3 Qa5 10. Bb5+ Nbd7 {[%cal Bb8d7,Bd7e5,Be5g6][%mdl 32]} 11. Bxf6 Qxc3+ 12. Kf1 gxf6 13. h4 a6 14. Rh3 {[%mdl 1024] White has compensation. D39: Queen's Gambit Declined: Ragozin Defence with 5 Bg5 dxc4.} Qb4 15. Be2 Ne5 16. Rb1 Qd6 17. Rc3 Bd7 {17...0-0 is the modern continuation.} 18. Rxb7 O-O 19. f4 Ng6 20. g3 Rfb8 21. Rxb8+ Rxb8 22. Nb3 Qxd1+ 23. Bxd1 {[#]} Kf8 $146 ({Predecessor:} 23... Ne7 24. Kf2 Kf8 25. Bc2 h6 26. Ke1 Be8 27. Ke2 Rb4 28. a3 Rb6 29. Kd2 f5 {½-½ (43) Mehlhorn,U (2376)-Zinoviev,P (2235) ICCF email 2018}) 24. Rc7 Bb5+ 25. Ke1 Ne7 26. Nc5 f5 27. e5 Nd5 28. Ra7 Rc8 29. Nb7 Rc7 (29... Rc1 $11 30. Kd2 Rc3) 30. Ra8+ $14 Kg7 31. Nd6 Kh6 (31... Rc3 $11) 32. a4 Nb6 $1 {[%cal Rb6a8]} 33. Rg8 ({Of course not} 33. Nxb5 axb5 34. Ra5 Nxa4 $15) 33... Bxa4 34. Bxa4 Nxa4 $11 {[%mdl 4096] Endgame KRN-KRN} 35. Rg5 {[#] Ne8 is the strong threat.} Nc3 36. g4 Ne4 37. Rxf5 $2 {[%mdl 8192]} (37. Nxe4 $11 {and White stays safe.} fxe4 38. f5) 37... Nxd6 $2 (37... Rc1+ $19 38. Ke2 Ng3+ {[%mdl 64] Double Attack} 39. Kd2 exf5 40. g5+ Kh5 41. Kxc1 Ne2+ 42. Kd1 Nxf4 43. Nxf5 Ng6) 38. exd6 {KR-KR} Rd7 39. Ra5 Rxd6 40. Ke2 Kg7 41. Ke3 h6 42. Ke4 Rb6 43. h5 Kf6 44. Rc5 {The position is equal.} Rb4+ 45. Kf3 Rb3+ 46. Kf2 Rb5 47. Rc6 a5 48. Ra6 Rb2+ 49. Kg3 Rb3+ 50. Kh4 Rb4 51. Kg3 $1 Rb3+ 52. Kh4 Rb4 53. Kg3 $1 Ra4 54. Ra7 Ra1 55. Kh4 Ra4 56. Kg3 Ra1 57. Kh4 a4 58. g5+ hxg5+ {Accuracy: White = 83%, Black = 86%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.6"]
[White "Yilmaz, Mustafa"]
[Black "Riazantsev, Alexander"]
[Result "1-0"]
[ECO "D38"]
[WhiteElo "2607"]
[BlackElo "2639"]
[Annotator "TA"]
[PlyCount "181"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,181,21,20,27,11,19,19,17,0,23,22,28,14,18,13,20,19,28,19,22,0,23,18,29,14,28,0,61,55,54,53,47,50,50,50,55,61,115,109,142,106,152,145,157,158,158,143,143,112,112,112,112,112,112,112,112,112,112,112,112,112,112,112,112,112,112,112,112,112,112,0,112,0,112,112,112,112,112,112,137,137,137,137,137,137,137,137,137,137,137,137,137,137,137,137,142,137,137,137,137,0,137,137,142,0,137,0,142,142,142,142,142,142,142,142,142,142,142,142,366,142,142,142,142,142,142,142,142,142,142,142,262,0,142,142,237,142,142,142,142,142,142,43,62,116,116,123,29967,29969,29966,29968,29969,29969,29972,29973,29973,29974,29973,29974,29975,29974,29974,29975,29975,29976,29975,29975,29971,29972]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Bb4 5. Bg5 h6 6. Bxf6 Qxf6 7. Qa4+ Nc6 8. e3 O-O {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} 9. Rc1 Rd8 {is cutting edge theory.} 10. Be2 dxc4 {[#] The position is equal.} 11. Qb5 $5 $146 {[%mdl 8] New and interesting.} ({Predecessor:} 11. Bxc4 Bxc3+ 12. bxc3 Bd7 13. Be2 e5 14. Qc2 Bf5 15. Qb2 e4 16. Nd2 Na5 17. O-O {1-0 (47) Ding,L (2805)-Giri,A (2779) Saint Louis 2019}) 11... Bd6 12. Qxc4 Qe7 13. a3 e5 14. d5 Nb8 15. Nd2 Nd7 16. O-O a6 17. Nde4 (17. Qb3 {keeps more tension.} Nc5 18. Qc2 a5 19. Rfd1 Bd7 20. Nce4) 17... Nf8 18. Nxd6 cxd6 19. Qb4 b5 20. Qa5 Bb7 (20... Bf5 $11) 21. a4 $36 {[%mdl 2048] White is pushing.} Nh7 22. axb5 axb5 23. Qb4 Nf6 24. e4 (24. Bxb5 Nxd5 25. Nxd5 Bxd5 $15) (24. Qxb5 Ba6 $11) 24... Ba6 25. Ra1 (25. Bxb5 Qb7 $15) 25... Qb7 (25... Nd7 $14) 26. Ra5 $16 Ne8 27. Nd1 {[%cal Bc3d1,Bd1e3,Be3c4][%mdl 32]} (27. Bxb5 Nc7 $16) 27... Rdc8 28. Ne3 (28. Bxb5 $2 Rc5 $19) 28... g6 29. Rfa1 Qb6 30. h4 (30. Bxb5 Nc7 $11) 30... h5 31. Bxb5 {[%cal Ra5a6]} Nc7 {[%cal Ra6b5]} 32. Nc4 $1 {[%csl LRb6,LRd6]} Qd4 33. Rxa6 Rxa6 34. Bxa6 Nxa6 35. Rxa6 (35. Qxd6 $6 Nc5 $11) 35... Qxc4 36. Qxc4 (36. Qxd6 {gets mated.} Qc1+ 37. Kh2 Qf4+ $1 {[%mdl 512]} 38. Kh3 Qg4+ 39. Kh2 Qxh4+ 40. Kg1 Rc1#) 36... Rxc4 {[%mdl 4096] Endgame KR-KR} 37. f3 ({Of course not} 37. Rxd6 $6 Rxe4 38. Rd8+ Kg7 $11) 37... Rb4 38. Rxd6 Kf8 39. Ra6 Rxb2 40. Ra8+ Ke7 41. Ra7+ Kf6 42. Ra8 Ke7 $1 43. Ra7+ Kf6 $1 44. Ra3 Rd2 45. Kh2 Ke7 46. Kh3 Rd1 47. g4 hxg4+ 48. Kxg4 Rg1+ 49. Kh3 Rh1+ 50. Kg3 Rg1+ 51. Kh2 Rd1 52. Ra6 Rd2+ 53. Kg3 Rd1 54. Ra2 Rd4 55. Ra7+ Kf6 56. Ra6+ Kg7 57. Ra7 Kf6 $1 58. Ra8 Ke7 59. Ra6 Rd1 $1 60. Ra8 Rd4 $1 61. h5 gxh5 62. Rh8 f6 63. Rxh5 Kf7 64. Kf2 Rd2+ 65. Ke3 Ra2 66. Rh7+ Ke8 $2 (66... Kg6 $16 67. Rb7 Ra6) 67. Rb7 $2 (67. Kd3 $1 $18 {is the precise move to win.} Ra4 68. Ke2) 67... Ra4 68. Kd3 Rd4+ 69. Ke2 Ra4 70. Ke3 Rc4 71. Ra7 Rb4 72. Ra6 Kf7 (72... Ke7 $16 {was necessary.} 73. Ra7+ Ke8) 73. Ra7+ (73. Kd3 $1 $18) 73... Ke8 74. Rh7 Rb2 (74... Rb3+ $16 {keeps fighting.} 75. Kf2 Ra3) 75. Rh1 (75. Kd3 $1 $18) 75... Ke7 76. Rd1 Ra2 77. Rd2 Ra4 78. Kf2 ({White should play} 78. Rc2 $16) 78... f5 $1 $14 79. Ke3 Ra3+ {[#]} 80. Rd3 $1 {[%cal Rd3a3]} Ra2 $2 {[%mdl 8192] [#]} (80... Ra4 $16 81. Rb3 (81. exf5 Kd6 $11) 81... Kf6) 81. d6+ $1 {White mates.} Kd7 82. exf5 Ra4 83. Rd5 Rh4 84. Rxe5 Kxd6 85. Re4 Rh8 86. Kf4 Rf8 87. Kg5 Rg8+ 88. Kh6 Rf8 89. Kg6 Rg8+ 90. Kf7 Rg3 91. Re3 {Accuracy: White = 86%, Black = 82%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.7"]
[White "Idani, Pouya"]
[Black "Aravindh, Chithambaram VR."]
[Result "1/2-1/2"]
[ECO "B33"]
[WhiteElo "2577"]
[BlackElo "2630"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 26,100,15,19,22,17,22,16,18,21,14,7,20,0,0,0,17,19,21,11,27,11,8,0,0,0,0,0,0,0,0,-14,-14,-19,-12,-12,-12,-12,-12,-12,0,0,0,0,0,-13,0,-8,-6,-7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 d6 7. Bf4 e5 8. Bg5 a6 9. Na3 b5 10. Nd5 Be7 11. Bxf6 Bxf6 12. c3 Rb8 13. Nc2 Bg5 14. a4 {14.Ncb4 is a critical line.} bxa4 {B33: Sicilian: Pelikan and Sveshnikov Variations.} 15. Ncb4 Nxb4 16. cxb4 Bd7 17. Bxa6 O-O 18. O-O Qe8 19. Nc7 Qd8 $1 {[%cal Rd8c7]} 20. Nd5 $1 Qe8 21. b3 axb3 $1 22. Qxb3 Kh8 23. Bd3 {[#]} Be6 $146 {The position is equal.} ({Predecessor:} 23... Bd8 24. Ra6 Qe6 25. Rb1 Bc8 26. Ra7 Bb7 27. Bc4 Qg6 28. Re1 f5 29. exf5 Qxf5 30. Ra2 Rc8 31. f3 Qg5 32. Kh1 Qh4 {0-1 (71) Zawadzka,J (2419)-Dubov,D (2660) Minsk 2017}) 24. b5 Bd8 $1 25. Bc4 Bxd5 26. Bxd5 Rxb5 27. Qd3 Rb8 28. Qa3 Qe7 29. Qa7 Qxa7 30. Rxa7 f5 31. Rd7 fxe4 32. Rxd6 Rb4 33. Re6 g6 34. g3 Kg7 35. Bc6 Rf5 36. Rd6 Bb6 {aiming for ...e3.} 37. Bxe4 {[#]} Bxf2+ $1 {[%mdl 512]} 38. Rxf2 Rxe4 $11 {[%mdl 4096] Endgame KRR-KRR} 39. Rd7+ Kh6 40. Kg2 Re1 41. h4 Re3 42. Rf7 Rxf7 43. Rxf7 {KR-KR} Kh5 44. Kf2 Ra3 45. Rxh7+ Kg4 46. Rg7 Kf5 47. g4+ {[%mdl 64] [#] Decoy} Kxg4 48. Rxg6+ Kxh4 49. Re6 Ra5 50. Ke3 Kg4 {Not much happened in this game. Accuracy: White = 100%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.8"]
[White "Bharath Subramaniyam H"]
[Black "Paravyan, David"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2402"]
[BlackElo "2629"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,100,16,14,33,16,16,12,24,11,14,1,25,0,0,10,-4,-62,-60,-84,-68,-62,8,0,0,-58,0,-66,-41,-72,-38,-64,-6,-94,20,-20,0,-34,-24,-83,-83,-90,-90,-78,-83,-83,-86,-107,0,0,17,0,81,91,115,106,110,113,239,47,116,127,120,0,0,0,70,87,102,63,192,81,101,62,38,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. O-O Bb6 7. a4 $1 {[%mdl 4] is currently scoring better than 7.Bb3.} a5 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 8. Re1 O-O 9. h3 Be6 10. Nbd2 h6 11. b3 {[#]} Kh8 $146 ({Predecessor:} 11... d5 12. Bb5 Ne7 13. exd5 Nfxd5 14. Bb2 c6 15. Bc4 Ng6 16. Nxe5 Bxh3 17. Ndf3 Bf5 18. d4 Ngf4 19. Nd3 Bc7 20. Nxf4 Nxf4 21. Ne5 Nxg2 22. Kxg2 Qg5+ {½-½ (22) Kazantsev,R (2421)-Kevicky,M (2406) ICCF email 2017}) 12. Bb2 Nh5 13. d4 Nf4 14. Bf1 (14. d5 $11 Qf6 15. Kh2 (15. dxe6 $2 Qg6 $17)) 14... f5 $15 15. exf5 Bxf5 16. Nc4 e4 (16... Ba7 $1 $15) 17. Nh2 Ba7 18. Ne3 (18. Qd2 $11 Qg5 19. Kh1) 18... Be6 (18... Bd7 $1 $15) 19. Bc1 (19. Neg4 $1 $11) 19... Qf6 $36 {[%mdl 2048] Black fights for an advantage.} 20. Ra2 Qf7 21. Rb2 Rad8 (21... Qg6 $15 22. Kh1 Ne7) 22. Neg4 (22. f3 $11) 22... d5 (22... Nd5 $17 23. Qc2 h5) 23. g3 Ng6 24. Bg2 Nb8 25. f4 (25. Nxh6 $11 {keeps the balance.} gxh6 26. Bxh6) 25... c5 $1 $17 26. dxc5 Bxc5+ 27. Be3 Qc7 28. Rd2 Ne7 29. Nf1 Bxg4 (29... Nd7 $17 {aiming for ...Bxe3+.} 30. Rc2 Qb6) 30. hxg4 $11 Na6 31. Kh2 Rc8 (31... Qb6 $11 {remains equal.}) 32. Ree2 Qb6 33. c4 $1 dxc4 34. bxc4 Qg6 {[#]} (34... Ng8 $16 {is a better defense.}) 35. Rf2 $2 (35. Bxe4 $1 $18 {[%mdl 512]} Qb6 (35... Qxe4 36. Bxc5) 36. Bb1) 35... Nc6 (35... Ng8 $14) 36. Rd5 $16 Ncb4 {[#] And now ...Bxe3 would win.} 37. Bxc5 (37. Rh5 $1 $16) 37... Nxc5 $11 ({Wrong is} 37... Rxc5 $2 38. Rd6 $16) 38. Rd6 Qf7 (38... Rf6 $11 39. Rd8+ Rf8) 39. Qd4 $14 Kg8 40. Ne3 Nbd3 ({Black should play} 40... Qc7 $14) 41. Rf1 (41. Re2 $18 {has better winning chances.}) 41... Rfe8 42. Rb1 Rc6 43. Rb6 Ne6 {The position is equal.} 44. Qd5 Ndxf4 45. gxf4 Qxf4+ 46. Kh1 Qxe3 47. Rxe6 Qe1+ 48. Kh2 Qh4+ 49. Kg1 Qe1+ 50. Kh2 Qh4+ {Accuracy: White = 58%, Black = 63%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.9"]
[White "Abdusattorov, Nodirbek"]
[Black "Antipov, Mikhail Al."]
[Result "1/2-1/2"]
[ECO "C67"]
[WhiteElo "2644"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "110"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,110,17,22,9,26,18,15,17,19,19,16,17,17,14,19,16,20,15,19,16,18,19,17,17,21,16,16,13,13,14,15,7,24,16,22,17,24,0,20,0,24,10,20,21,18,17,16,16,13,7,10,16,17,17,17,8,19,16,30,30,80,68,56,47,43,44,89,87,87,0,8,0,62,52,47,60,58,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bf1 Nxe5 8. Rxe5 O-O 9. Nc3 {[%cal Bb1c3,Bc3d5,Bd5e3,Be3f5,Bf5e7][%mdl 32] C67: Ruy Lopez: Berlin Defence: 4 0-0 Nxe4.} Ne8 10. Nd5 Bd6 11. Re1 c6 12. Ne3 $1 Be7 13. Nf5 Bf6 14. Qe2 Kh8 15. Ne7 Nc7 16. Nxc8 {[#] aiming for Nd6.} Re8 $146 ({Predecessor:} 16... Qxc8 17. c3 d5 18. d4 Re8 19. Be3 Bg5 20. Qf3 Bxe3 21. fxe3 f5 22. Bd3 g6 {½-½ (38) L'Ami,E (2606)-Van Foreest,L (2523) Wijk aan Zee 2020}) 17. Qd1 Rxe1 18. Qxe1 Rxc8 19. c3 d5 20. d4 Bg5 21. Qe5 Bxc1 22. Rxc1 Qe8 23. g3 f6 24. Qd6 Qf8 25. Qd7 {And now Bh3 would win.} Qe8 26. Qd6 Qf8 $1 {[%cal Rf8d6]} 27. Qd7 {Strongly threatening Bh3.} Qe8 28. Qh3 Rd8 29. Bd3 {[%csl Gd3][%cal Rh3h7]} g6 30. Qh6 Qf8 31. Qf4 Ne6 32. Qf3 Re8 33. h4 f5 34. Rc2 Nd8 35. Re2 Nf7 36. c4 Rxe2 37. Qxe2 Qd6 {[#]} 38. cxd5 $1 cxd5 39. Bc2 f4 $1 40. Qf3 Kg7 41. gxf4 Nh6 42. Bb3 (42. h5 $16) 42... Nf5 $11 43. Bxd5 b6 ({Black should play} 43... Nxd4 $11 44. Qe4 Qxf4) 44. Qe4 $14 Qf6 $1 45. Qe5 Nxd4 46. Qc7+ (46. Kg2 $14) 46... Kh6 $11 {The position is equal.} 47. Bg8 {[%csl Gg8][%cal Rc7h7]} Kh5 $1 48. Qxh7+ Kg4 {Threatens to win with ...Nf3+.} 49. Bb3 {Black must now prevent Bd1+.} ({But not} 49. Qxa7 $2 Nf3+ 50. Kg2 (50. Kf1 {leads to mate.} Qf5 51. Be6 Qxe6 52. Kg2 Nxh4+ 53. Kh2 Qd5 54. Qd7+ Qxd7 55. f3+ Nxf3+ 56. Kg2 Qd1 57. Kf2 Qe1+ 58. Kg2 Qg1#) 50... Nxh4+ 51. Kf1 Qd6 $19) 49... Qc6 {( -> ...Kh3)} 50. Qe7 $1 {[%cal Re7g5] Qg5+ is the strong threat.} ({Avoid the trap} 50. Bd1+ $2 Kh3 $19) 50... Nf3+ 51. Kg2 Nd2+ 52. Kh2 Nf3+ {[%mdl 64] [#] Double Attack} 53. Kg2 Nd2+ 54. Kh2 {Qg5+ would kill now.} Nf3+ {[%mdl 64] Double Attack} 55. Kg2 {White threatens Be6+ and mate.} Nd2+ {Accuracy: White = 95%, Black = 93%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.10"]
[White "Vaibhav, Suri"]
[Black "Artemiev, Vladislav"]
[Result "1-0"]
[ECO "B54"]
[WhiteElo "2591"]
[BlackElo "2728"]
[Annotator "TA"]
[PlyCount "109"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,109,31,22,30,25,33,18,24,10,47,39,38,32,66,54,110,96,116,111,109,120,123,122,177,161,203,193,185,199,187,193,194,172,231,221,222,206,259,244,299,304,300,301,356,365,427,418,362,324,293,298,278,219,239,218,202,205,359,268,579,577,544,537,929,924,1039,1011,929,762,1299,1268,967,804,618,0,1323,1308,1437,1552,2153,2090,29978,29979,29980,29981,29981,29982,29982,29983,29981,29982,29988,29988]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 Nc6 6. Nc3 e5 7. Nb3 Be7 8. Be3 O-O 9. Qd2 a5 10. Bb5 Na7 {B56: Classical Sicilian: Unusual Lines.} 11. Bxa7 Rxa7 12. a4 Be6 {The position is equal.} 13. O-O-O Ne8 {Strongly threatening ...Bg5.} 14. Kb1 Nc7 {[#]} 15. f4 $146 (15. Be2 {is interesting.} Qa8 16. h4 Rd8 17. Qe3 b6 18. f4) ({Predecessor:} 15. Qd3 Nxb5 16. Nxb5 Ra6 17. c4 Qc8 18. Nd2 Qc5 19. Rhe1 Rc6 20. b3 Bd8 21. Nf1 {1-0 (42) Lagarde,M (2616)-Soumya,S (2428) Sitges 2018}) 15... exf4 16. Qxf4 Bxb3 (16... Qb8 $14) 17. cxb3 $16 Nxb5 18. Nxb5 (18. axb5 Ra8 $14) 18... Ra6 19. Rd5 Rc6 20. Rhd1 Qb6 (20... Qe8 $16 21. Qg4 (21. Nxd6 Bxd6 22. Rxd6 b5 $16) 21... Rc5) 21. Nd4 $1 $18 Rc5 22. Nf5 $1 {[%cal Rf5e7]} Bf6 23. Qxd6 Rxd5 (23... Qxb3 24. Qxf8+ $1 {[%mdl 512]} Kxf8 25. Rd8+ $1 {[%mdl 512]} Bxd8 26. Rxd8#) 24. Qxd5 ({Don't take} 24. Qxb6 $6 Rxd1+ 25. Ka2 Rd2 $14) 24... Qf2 {[%csl Gf6][%cal Rf2b2] [#]} 25. Rd2 $1 {[%cal Rd2f2]} Qg1+ 26. Ka2 {Hoping for e5.} Qxh2 27. Qxa5 ({Much less strong is} 27. Qxb7 $6 h6 $16) 27... Qf4 28. Qd5 g6 29. Nd6 b6 30. Re2 Qf1 31. Rc2 Bg7 32. e5 h5 33. Rc8 Rxc8 34. Nxc8 Qf2 35. b4 Qf4 36. Nxb6 {aiming for Nc4.} Qxb4 37. a5 {[%cal Ba4a5,Ba5a6][%mdl 32]} h4 $2 (37... Bf8 {keeps fighting.} 38. Nc4 Qa4+ 39. Kb1 Be7) 38. Nc4 Kh7 $2 (38... Qa4+ 39. Kb1 Kh7) 39. b3 {[%cal Bb2b3,Bb3b4][%mdl 32]} Qe1 40. a6 Qf2+ {[#]} 41. Ka3 $1 Bf8+ 42. b4 Kh8 43. Nd6 Qc2 44. Nxf7+ Kh7 45. Ng5+ Kh6 46. Nf7+ (46. Ne4 $142 Qc8 47. Qd3) 46... Kh7 47. Nd6 Bg7 {[#]} 48. Qe4 $1 Qf2 49. Nb5 Bh6 50. a7 {White mates.} Bc1+ 51. Kb3 Qb2+ 52. Kc4 Qa2+ 53. Kc5 Qf2+ 54. Kc6 Qf8 55. Nc7 {White took control after the opening. Accuracy: White = 97%, Black = 41%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.11"]
[White "Cordova, Emilio"]
[Black "Sargissian, Gabriel"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2593"]
[BlackElo "2689"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,81,11,20,1,8,17,15,14,22,17,14,1,4,9,8,0,0,0,0,0,77,77,83,89,102,56,56,56,56,56,56,45,104,104,104,104,104,105,121,55,114,53,57,43,69,0,54,39,94,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. g3 Bb4+ 5. Nbd2 O-O 6. Bg2 b6 7. O-O Bb7 8. b3 {E16: Queen's Indian: 4 g3 Bb7 5 Bg2 Bb4+.} Nbd7 9. Bb2 Qe7 10. e3 a5 11. a3 Bd6 12. Ne5 Bxe5 13. dxe5 Ne4 {[#]} 14. Nxe4 $146 ({Predecessor:} 14. Bd4 Ndc5 15. Nxe4 dxe4 16. Bxc5 Qxc5 17. Qd4 Rfd8 18. Qxc5 bxc5 19. Rfd1 Kf8 20. Kf1 {½-½ (30) Heyken,E (2325)-Rother,C Germany 1987}) 14... dxe4 15. b4 axb4 16. axb4 Rxa1 (16... Qxb4 $11 {remains equal.} 17. Rxa8 Bxa8) 17. Bxa1 $16 Rd8 18. Qb1 Nb8 19. Rd1 ({Much weaker is} 19. Bxe4 $6 Bxe4 20. Qxe4 Qxb4 $11) 19... Rxd1+ 20. Qxd1 Na6 21. Bc3 g6 22. Qb1 Qf8 (22... Qd7 $14) 23. b5 Nc5 24. Bb4 Qa8 25. Bxc5 $1 bxc5 {[#]} 26. h4 (26. Qd1 $1 $16) 26... Kg7 (26... Qa4 $14) 27. Kh2 (27. Qd1 $16) 27... h5 28. Qc2 Kf8 29. Qb1 Kg7 30. Kh3 Kf8 ({Black should play} 30... Qa3 $14) 31. b6 ({Better is} 31. Qd1 $16) 31... Qa5 $11 {The position is equal.} 32. bxc7 Qxc7 33. Bxe4 Ba6 34. Bd3 Qxe5 35. Qb6 Bxc4 $1 36. Bxc4 Qf5+ {[%mdl 64] [#] Double Attack} 37. Kh2 {Threatens to win with Qb2.} Qxf2+ {[%mdl 64] Double Attack} 38. Kh1 Qxe3 {White must now prevent ...Qc1+.} 39. Qd6+ Kg7 {And now ...Qe4+ would win.} 40. Qf4 Qxf4 41. gxf4 {Accuracy: White = 79%, Black = 80%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.12"]
[White "Wagner, Dennis"]
[Black "Maghsoodloo, Parham"]
[Result "0-1"]
[ECO "D38"]
[WhiteElo "2590"]
[BlackElo "2674"]
[Annotator "TA"]
[PlyCount "114"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,114,8,2,33,25,20,8,8,19,32,25,39,35,40,36,42,19,61,54,89,64,89,80,76,15,16,25,39,-16,-12,-7,-12,-3,-10,-45,-45,-45,-45,-45,-45,-45,-37,-45,-38,-37,-37,-51,-41,-42,-37,-37,-37,-37,-37,-37,-37,-61,-61,-61,-61,-61,-61,-61,-61,-61,-61,-61,-61,-61,-29,-29,-29,-29,-29,-29,-29,-29,0,0,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-4,-8,-4,-1661,-1578,-1060,-1039,-5310,-5436,-29968,-29969,-29967,-29947,-29974,-29975,-29975,-29976]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Qa4+ Nc6 6. e3 Bd7 {White must now prevent ...Nxd4! D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} 7. Qc2 O-O 8. a3 Bxc3+ {The position is equal.} 9. Qxc3 a5 10. b3 {[#]} Ne4 $146 ({Predecessor:} 10... a4 11. b4 dxc4 12. Bxc4 Na7 13. Qc2 Bc6 14. O-O Bb5 15. Nd2 Bxc4 16. Nxc4 Nb5 {1-0 (32) Lupulescu,C (2643)-Baratosi,D (2403) Calimanesti 2014}) 11. Qc2 f5 12. Bd3 Be8 13. Bb2 Bg6 14. O-O f4 15. Rae1 Qe7 16. exf4 Rxf4 {[#]} 17. Nd2 (17. cxd5 $1 $16 exd5 18. Nd2) 17... Nxd2 $1 $11 18. Qxd2 {Bxg6 is the strong threat.} Bxd3 19. Qxf4 (19. Qxd3 $14 Qf6 20. cxd5 exd5 21. Qb5) 19... Qf7 $36 {[%mdl 2048] Black has good play.} 20. Qxf7+ Kxf7 21. cxd5 exd5 22. Re3 Bxf1 23. Kxf1 $15 {[%mdl 4096] Endgame KRB-KRN} a4 24. b4 Na7 25. Rf3+ Kg8 26. Rf5 Rd8 27. Re5 Kf7 28. Ke2 g6 29. Kd3 h5 30. Bc1 Rd6 31. f3 Nb5 32. h3 c6 33. Re2 h4 34. Re1 Re6 35. Rxe6 Kxe6 {KB-KN} 36. Ke3 Kf5 37. Kd3 Nc7 38. Ke2 g5 39. Kf2 b6 40. g4+ hxg3+ 41. Kxg3 Nb5 42. Bb2 Nd6 43. Bc1 Nc4 44. Kf2 Kg6 45. Kg3 Nd6 {next ...Kh5 is good for Black.} 46. f4 Nf5+ 47. Kg4 gxf4 ({Much weaker is} 47... Nxd4 $6 48. fxg5 Kf7 49. h4 $16) 48. Bb2 {[#]} f3 $1 {[%mdl 512]} 49. Kxf3 Kg5 50. Bc1+ Kh4 51. Kf4 $2 {[%mdl 8192] Now White is beyond hope.} (51. Bb2 $11) 51... Nxd4 $19 52. Ke5 Nb5 53. Ke6 {[#]} Nxa3 $1 {[%mdl 512]} 54. Kd6 (54. Bxa3 d4) 54... Nc4+ {Black mates.} 55. Kxc6 a3 56. Bxa3 Nxa3 57. Kxd5 b5 {Accuracy: White = 75%, Black = 88%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.13"]
[White "Visakh N R"]
[Black "Rakhmanov, Aleksandr"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2518"]
[BlackElo "2645"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,59,6,4,4,16,16,16,17,11,14,18,16,16,16,22,12,21,17,24,13,21,0,0,0,0,0,0,0,0,0,0,-22,-29,-20,-16,-30,0,-1,0,0,1,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 a6 5. c5 b6 6. cxb6 {D37: Queen's Gambit Declined: 5 Bf4.} cxb6 7. Bf4 Bd6 8. e3 Bxf4 9. exf4 O-O 10. Bd3 {[#]} Nc6 $146 ({Predecessor:} 10... Qd6 11. g3 Bb7 12. Qe2 Nc6 13. O-O Nb4 14. Bb1 Rfc8 15. Ne5 Rc7 16. Rd1 Rac8 {½-½ (60) Georgiev,K (2582)-Nevednichy,V (2518) Bucharest 2019}) 11. O-O Qd6 12. g3 Bd7 13. Rc1 Rfc8 14. Re1 b5 15. Bb1 Ne7 16. Ne5 b4 17. Ne2 Bb5 18. Rxc8+ Rxc8 19. Nc1 Qb6 20. Qd2 a5 21. f3 Bc4 22. Kg2 Nc6 23. Nxc6 {The position is equal.} Qxc6 24. g4 Nd7 25. f5 Nf8 26. fxe6 Nxe6 27. Bf5 Re8 28. Bxe6 Rxe6 29. Rxe6 Qxe6 30. Nb3 {An uneventful encounter. Accuracy: White = 100%, Black = 94%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.14"]
[White "Sethuraman, S.P."]
[Black "Shimanov, Aleksandr"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2641"]
[BlackElo "2587"]
[Annotator "TA"]
[PlyCount "153"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,153,31,29,32,22,48,27,24,27,49,63,53,45,68,62,68,68,60,61,77,61,73,68,73,66,66,59,66,68,67,66,86,62,101,97,83,95,107,73,97,97,83,44,44,34,131,123,160,134,144,133,136,137,143,70,72,79,86,64,60,65,67,70,72,66,164,158,148,149,162,152,159,0,0,0,0,0,1,0,71,0,0,0,0,3,8,8,8,0,0,0,23,41,85,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8]} 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 c6 6. Bc4 Bf5 7. Bd2 Nbd7 8. Qe2 Qc7 9. O-O-O e6 10. Nh4 Bg6 11. Nxg6 hxg6 12. h3 O-O-O 13. Bb3 Nb6 {B01: Scandinavian Defence.} 14. Bg5 Be7 15. Qf3 {[#]} Nfd5 $146 {White has an edge.} ({Predecessor:} 15... Nbd5 16. Bxd5 Nxd5 17. Bxe7 Qxe7 18. Ne4 Nf6 19. Nc5 Rd5 20. Rd3 Rhd8 21. Rb3 Rxd4 22. Nxb7 R8d5 23. Na5 Qc7 24. Nb7 Ne4 25. Qe3 Qd7 26. Qe2 Rd2 27. Qf1 Nxf2 {0-1 (27) Balajayeva,K (2397)-Ning,K (2224) Moscow 2019}) 16. Ne4 Bxg5+ 17. Nxg5 Qe7 18. Qg3 ({Wrong is} 18. Nxf7 $2 Rhf8 $19) 18... Nf6 19. h4 Nh7 20. Nf3 Nf6 {White must now prevent ...Ne4.} 21. Rhe1 Nbd5 22. Ng5 Rd7 23. Kb1 Qd8 24. c4 Nb6 25. Nf3 Rf8 26. Qf4 Qc7 27. Ne5 c5 28. g3 Rxd4 29. Rxd4 cxd4 30. Qxd4 Rd8 31. Qe3 Kb8 32. c5 $36 {[%mdl 2048] White has strong initiative.} Nbd5 33. Qd4 Ne7 $1 34. Qf4 Rf8 (34... Nc6 $14) 35. c6 $16 bxc6 36. Qb4+ Ka8 37. Nxc6 Re8 38. Ne5 Rb8 39. Qc3 ({White should play} 39. Qd2 $16) 39... Qxc3 $14 40. bxc3 Rf8 41. Kc2 Kb7 42. Ba4 Nfd5 43. Bb5 Kc7 44. a4 {[%cal Ba2a4,Ba4a5,Ba5b6][%mdl 32]} Nb6 (44... Nf5 $14) 45. c4 $18 a6 46. a5 $1 {[%cal Ra5b6]} ({Don't take} 46. Bxa6 Nxa4 47. Bb5 Nc5 $14) 46... axb5 47. axb6+ $16 {[%mdl 4096] Endgame KRN-KRN} Kb7 48. c5 $2 ({Only move:} 48. cxb5 $16 Nd5 49. Kb3) 48... Nc6 $11 49. Nd3 Ra8 50. Re4 Ra2+ 51. Kb3 Rd2 {[#]} (51... Ra8 $11 {remains equal.}) 52. Kc3 (52. Re3 $1 $16) 52... Ra2 53. g4 Ra3+ 54. Kc2 Ra8 55. g5 Rd8 56. Kc3 Rd5 $1 57. Rf4 Rd7 58. Rf3 e5 {[#] Hoping for ...e4.} 59. Re3 (59. Nc1 $1 $16) 59... Rd5 {The position is equal.} 60. Re4 f5 61. gxf6 $1 gxf6 62. Rg4 Ne7 63. Rb4 Kc6 64. Re4 Kb7 65. Rb4 Kc6 66. f4 {fxe5 is the strong threat.} Rd7 {Strongly threatening ...Nd5+.} 67. Re4 Nd5+ 68. Kb3 (68. Kc2 {is more complex.} Nxf4 69. Nxf4 exf4 70. Rxf4 Rf7 71. Rg4) 68... Nxb6 {[#]} 69. Nxe5+ $1 {[%mdl 512]} fxe5 70. cxb6 exf4 71. Rxf4 {KR-KR} Rd6 72. Rg4 Kxb6 73. Rg5 $1 Ka5 74. h5 gxh5 75. Rxh5 Rd3+ 76. Kc2 Rf3 77. Rh4 $1 {Accuracy: White = 90%, Black = 88%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.15"]
[White "Martirosyan, Haik M."]
[Black "Erigaisi Arjun"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "2630"]
[BlackElo "2563"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,90,14,0,0,0,7,6,17,6,10,-6,4,-39,-17,-11,0,0,19,14,26,0,39,25,24,2,16,0,29,-11,0,0,0,-134,-126,-145,-147,-147,-137,-152,-149,-151,-151,-175,-162,-170,-172,-160,-115,-143,-85,-86,-72,-76,-75,-68,-71,-98,-102,-114,-110,-133,-123,-191,-162,-292,-310,-341,-341,-341,-341,-341,-341,-341,-341,-1163,-961,-6087,-5065]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 e5 6. c3 Nge7 7. d3 O-O 8. Nbd2 d6 {B31: Sicilian: 2...Nc6 3 Bb5 g6.} 9. a3 h6 10. b4 Be6 {The position is equal.} 11. Bb2 a6 {[#]} 12. Ba4 $146 ({Predecessor:} 12. Bc4 Qd7 13. Qe2 b5 14. Bxe6 Qxe6 15. Nf1 cxb4 16. cxb4 Rad8 17. N1d2 Rfe8 18. Rac1 {½-½ (26) Martin Rueda,D (2277)-Amigo Villalta,J (2130) Mondariz 2003}) 12... Qd7 13. b5 axb5 14. Bxb5 Nc8 15. a4 N8a7 16. Bc4 Rad8 17. Qc2 f5 18. Bxe6+ Qxe6 19. Rad1 d5 20. Ba3 b6 21. Qa2 Qf7 22. Rb1 Nc8 23. h3 (23. exf5 $11 {remains equal.} Qxf5 24. c4) 23... dxe4 $17 {[%mdl 64] Discovered Attack} 24. Qxf7+ Rxf7 25. dxe4 Ra7 26. a5 Rxa5 27. Bc1 Ra4 28. g4 fxg4 29. hxg4 Rd3 30. Bb2 Nd6 31. Re2 {intending Ne1.} Nc4 (31... Nb5 $142 32. Kg2 Nc7) 32. Nxc4 Rxc4 33. Ne1 Rd6 34. Ra1 b5 35. Nc2 b4 36. cxb4 cxb4 37. f3 Rd3 38. Kf2 (38. Ra8+ $17 Rd8 39. Rxd8+ Nxd8 40. Ne3) 38... Bf8 $1 $19 39. Ra6 (39. Kg3 $142) 39... b3 40. Ne3 Bc5 $1 {Hoping for ...Nb4.} 41. Rxc6 Rxe3 42. Rxg6+ {[#]} Kf7 $1 43. Rc6 {[#] If only White now had time for Kf1....} Ke7 $1 44. Rc7+ $2 (44. Kf1 Rxe2 45. Kxe2 Rc2+ 46. Kd3) 44... Kd8 45. Bxe5 Rexe4+ $1 {[%mdl 64] Discovered Attack. Accuracy: White = 53%, Black = 90%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.16"]
[White "Asadli, Vugar"]
[Black "Deac, Bogdan-Daniel"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "2538"]
[BlackElo "2626"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,101,-6,-9,-29,-17,-35,-33,-18,0,0,0,0,0,0,0,0,24,29,20,22,55,53,50,48,80,36,27,0,24,25,30,23,43,28,35,29,34,79,79,81,81,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nc3 d6 3. f4 g6 4. Nf3 Bg7 5. d4 cxd4 6. Nxd4 Nc6 7. Be3 Nf6 8. Be2 O-O 9. Nb3 e5 10. O-O {B72: Sicilian Dragon: 6 Be3, lines with h3+Bc4 and sidelines.} exf4 11. Bxf4 Re8 12. Qxd6 {Black is slightly better.} Qxd6 13. Bxd6 Nxe4 14. Nxe4 Rxe4 15. Bf3 Re6 16. Ba3 {[#]} Nd4 $146 ({Predecessor:} 16... Re8 17. Rad1 Ne5 18. Bd5 Bg4 19. Rd4 Be6 20. Bxb7 Bxb3 21. Bxa8 Nf3+ 22. Bxf3 Bxd4+ {0-1 (45) Jones,G (2688)-Abdusattorov,N (2608) Douglas 2019}) 17. Nxd4 $1 Bxd4+ 18. Kh1 {Threatening Rad1.} Rb6 19. Rad1 Bf6 20. c4 Kg7 $1 21. c5 Re6 22. Rd3 a5 23. b3 Raa6 24. Bg4 {[#] Threatens to win with Rdf3.} Rec6 25. Bxc8 Rxc8 26. Rdf3 {Hoping for Rxf6!} g5 27. Rxf6 {[%mdl 64] Remove Defender} Rxf6 $14 {[%cal Rf6f1][%mdl 4096] Endgame KRR-KRB} 28. Bb2 {[%mdl 64] Pin} Rcc6 {[#]} 29. h3 (29. h4 $1 $16 gxh4 30. Rf4 {[%mdl 64] Pin}) 29... Kg6 {The position is equal.} 30. Bxf6 Rxf6 $11 {KR-KR} 31. Rd1 Rf5 32. Rd7 Rxc5 33. Rxb7 h5 34. a4 Rc1+ 35. Kh2 h4 36. Rb6+ f6 37. Rb5 Rb1 38. Rxa5 Rxb3 39. Rb5 Ra3 40. a5 Ra1 41. Rc5 Ra2 42. Rb5 f5 43. Rb6+ Kh5 44. Rb5 Kg6 45. Rb6+ Kf7 46. a6 g4 {( -> ...g3+)} 47. hxg4 fxg4 48. Rb4 h3 49. Rxg4 hxg2 50. a7 Rxa7 51. Kxg2 {Accuracy: White = 91%, Black = 97%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.17"]
[White "Durarbayli, Vasif"]
[Black "Suleymanli, Aydin"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2625"]
[BlackElo "2474"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,81,37,48,15,19,16,18,0,0,0,1,15,16,15,10,-21,-35,-57,-46,-114,-47,-124,-35,0,20,24,50,0,0,0,0,-32,-20,-69,-74,-238,-202,-256,-8,-13,-2,-69,-6,-7,-22,-10,0,-9,0,-263,-269,-274,-270,-255,-239,-253,-262,-231,-200,-202,0,-922,-908,-845,-886,-1132,-1120,-1099,-1063,-972]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 c5 6. Be3 Qb6 $1 {[%mdl 4] is more profitable than 6...cxd4 at the moment. Played by Vladislav Artemiev in January 2020.} 7. Nc3 Nc6 8. Na4 {B12: Caro-Kann: Advance Variation.} (8. O-O $5 {[%cal Rd4c5]}) 8... Qa5+ 9. c3 {[%cal Rd4c5]} c4 10. Nh4 {The position is equal.} b5 11. Nxf5 exf5 12. Nc5 Bxc5 13. dxc5 Nge7 {[#]} 14. b4 $146 ({Predecessor:} 14. O-O b4 15. Qc2 O-O 16. f4 Rab8 17. Bf3 bxc3 18. Qxc3 Qb5 19. Rf2 Rfd8 20. Rd2 h6 21. Rad1 Qa4 22. Ra1 Qb5 23. Rad1 Qa4 24. Ra1 {½-½ (24) Bartel,M (2600)-Admiraal,M (2504) Benasque 2019}) 14... Qa3 15. Qc2 d4 16. cxd4 (16. Bxd4 $15 Nxd4 17. cxd4) 16... Qxb4+ (16... f4 $17 17. Qc1 (17. Bxf4 Nxd4 18. Qd2 Rd8 $17) 17... Qxc1+ 18. Bxc1 Nxd4) 17. Qd2 (17. Kf1 $15 Rd8 18. Rb1) 17... a5 (17... Qxd2+ $17 18. Kxd2 O-O-O) 18. a4 $1 $15 {[%cal Ra4b5] Black must now prevent axb5.} f4 19. axb5 c3 20. Qd3 {And now Rb1 would win.} fxe3 21. fxe3 (21. bxc6 $2 c2+ 22. Kf1 Qb2 $19) 21... Qb2 $1 {[%cal Rb2a1]} 22. O-O Nb4 23. Qe4 O-O 24. Bc4 $2 (24. Bd3 $17 {was forced.} g6 25. Bc4) 24... c2 $1 $19 25. Rac1 Rad8 $2 ({Black should play} 25... a4 $1 $19 26. Bd3 g6) 26. Bd3 $1 $11 {[%csl Gd3][%cal Re4h7]} g6 $1 {next ...Ned5 is good for Black.} (26... Nxd3 $6 27. Qxd3 Qb4 28. Rxc2 $16) 27. b6 $1 {[%cal Rd3c2]} Ned5 ({Black should try} 27... Qa3 $1 $15 28. Bxc2 Ned5) 28. Bc4 $1 Qc3 29. Bxd5 $1 Rxd5 30. b7 {Hoping for e6.} Rb8 {aiming for ...Qc4.} 31. e6 $2 {[%mdl 8192]} (31. g4 $1 $11 {and White has nothing to worry.} Rd7 32. e6) 31... f5 $19 32. Rxc2 Qxc2 ({And not} 32... fxe4 33. Rxc3 Rxb7 34. c6 $16) 33. Qxc2 Nxc2 34. c6 Rb5 ({But not} 34... Nxe3 $2 35. c7 $18) 35. d5 {Strongly threatening d6.} Kg7 36. d6 {[#]} Kf6 $2 ({Avoid the trap} 36... Nxe3 $2 37. d7 $18) (36... Nb4 $1 $19 {[%cal Rb4c6]} 37. Rc1 {[#]} Nxc6 $1 {[%mdl 512]} 38. Rxc6 R5xb7) 37. d7 $2 {[%mdl 8192]} (37. e7 $11 R5xb7 38. cxb7) 37... Rc5 {Black is clearly winning.} 38. Rd1 Rd8 39. e4 Ke7 40. exf5 gxf5 41. Rd5 {Accuracy: White = 57%, Black = 66%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.18"]
[White "Indjic, Aleksandar"]
[Black "Nesterov, Arseniy"]
[Result "1/2-1/2"]
[ECO "E21"]
[WhiteElo "2622"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,81,10,20,16,26,31,20,10,27,0,0,0,0,-41,-8,0,65,96,87,75,91,75,62,62,106,100,131,80,107,63,63,63,60,52,52,54,57,52,62,63,63,59,55,36,63,59,85,0,66,63,48,51,51,0,0,0,0,0,0,0,0,0,126,0,0,0,-40,-101,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. Qb3 c5 6. Bg5 h6 7. Bh4 Nc6 8. d5 {E21: Nimzo-Indian: 4 Nf3.} Na5 9. Qc2 $1 exd5 10. cxd5 O-O 11. O-O-O {[#]} Bxc3 $146 ({Predecessor:} 11... g5 12. Bg3 Bxc3 13. bxc3 Re8 14. Nd2 d6 15. e4 a6 16. Be2 b5 17. h4 g4 {½-½ (25) Schenk,A (2325)-Tan,D (2203) Oropesa del Mar 2000}) 12. bxc3 Qe7 13. g4 Qe4 14. Bxf6 Qxc2+ (14... Qf4+ $11 {keeps the balance.} 15. Nd2 Qxf6) 15. Kxc2 $16 gxf6 16. e4 d6 17. Nh4 Bd7 18. Rb1 Kg7 19. Rg1 Rad8 20. c4 (20. Bb5 $142) 20... Rg8 21. Ng2 Kf8 22. Ne3 h5 {[%cal Rh5g4]} 23. Be2 hxg4 24. Kd3 {[%cal Re2g4]} ({Not} 24. Bxg4 Nxc4 25. Nxc4 Rxg4 $17) 24... Rh8 25. Bxg4 {aiming for h4.} Bxg4 26. Nxg4 Ke7 27. Rg3 $1 Rh5 28. Rf3 Rdh8 29. Rg1 Rg5 30. Rgg3 (30. h3 $16) 30... Rhh5 (30... a6 $1 $11) 31. Nxf6 Rxg3 32. hxg3 $14 {[%mdl 4096] Endgame KRN-KRN} Rh1 33. g4 ({Better is} 33. Ng4 $1 $14) 33... Rd1+ $11 34. Ke2 Rh1 $1 35. g5 {Threatens to win with Ng8+.} Nxc4 36. Ng8+ Ke8 37. Nh6 Ne5 (37... Rh4 $1 $11) 38. Ra3 (38. Rf6 $16) 38... a5 39. f4 Rh2+ 40. Kd1 {[#]} ({White should try} 40. Ke1 $1 $15 Nc4 41. Rc3) 40... Rh1+ (40... Nc4 $1 $17 {[%cal Rc4a3]} 41. Rc3 b5) 41. Kc2 {Accuracy: White = 69%, Black = 70%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.19"]
[White "Zanan, Evgeny"]
[Black "Zhou, Jianchao"]
[Result "0-1"]
[ECO "B96"]
[WhiteElo "2500"]
[BlackElo "2622"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,50,21,11,6,13,16,0,42,-9,4,4,11,-10,-11,-83,-79,-82,-75,-85,-77,-190,-172,-195,-148,-247,-254,-471,-422,-542,-510,-595,-450,-478,-466,-447,-350]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 h6 8. Bh4 Qb6 $1 {8...Qb6 is better than 8...Be7.} 9. a3 Be7 {B96: Sicilian Najdorf: 6 Bg5 e6 7 f4, lines other than 7...Qb6 and 7...Be7.} 10. Bf2 Qc7 11. Qf3 b5 {The position is equal.} 12. O-O-O (12. g4 $14) 12... Bb7 13. g4 d5 14. e5 Ne4 {[#]} 15. Be1 $146 (15. Nxe4 $1 $11 {remains equal.} dxe4 16. Qe3) ({Predecessor:} 15. Nxe4 dxe4 16. Qe3 Nd7 17. Bg2 Nxe5 18. Bxe4 Nxg4 19. Qf3 Bxe4 20. Qxe4 O-O 21. Bg3 {0-1 (53) Dai,C (2506)-Zhou,J (2623) Tianjin 2020}) 15... Nc6 $17 16. Nxc6 Bxc6 17. Nxe4 dxe4 18. Qe3 (18. Qe2 $17) 18... a5 $19 19. Bg2 b4 {[%cal Bb5b4,Bb4a3,Ba3a2][%mdl 32]} 20. Bxe4 (20. a4 $17) 20... bxa3 21. Qc3 $2 (21. b3 {is a better defense.} O-O 22. Qc3) 21... a2 {Black is clearly winning.} (21... axb2+ $2 22. Kb1 $19) 22. Bxc6+ Kf8 23. b3 {[#] Threatens to win with Kb2.} Ba3+ 24. Kd2 {Strongly threatening Ke2.} Bb4 25. Qxb4+ axb4 {Black took control after the opening. Accuracy: White = 42%, Black = 87%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.20"]
[White "Kobalia, Mikhail"]
[Black "Murzin, Volodar"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "2609"]
[BlackElo "2442"]
[Annotator "TA"]
[PlyCount "31"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,31,16,23,9,14,0,11,12,20,6,10,0,13,12,12,2,13,11,9,6,6,0,8,12]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 O-O 6. a4 {C50: Hungarian Defence and Giuoco Pianissimo.} a5 {The position is equal.} 7. Nbd2 d6 8. c3 Be6 9. h3 h6 10. Re1 Ba7 11. Bxe6 fxe6 12. Nf1 Nh5 13. Be3 Bxe3 {[#]} 14. Rxe3 $146 ({Predecessor:} 14. fxe3 b6 15. N1d2 d5 16. Rc1 Qd6 17. g4 Nf6 18. g5 hxg5 19. Nxg5 Nd8 20. Kh1 {½-½ (32) Cvak,R (2322)-Ferre Perez,A (2118) ICCF email 2016}) 14... Nf4 15. Kh2 g5 16. g3 {Not much happened in this game. Accuracy: White = 100%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.21"]
[White "Sychev, Klementy"]
[Black "Svane, Rasmus"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "2563"]
[BlackElo "2608"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,77,20,21,20,14,4,14,0,0,0,0,0,0,0,0,0,0,0,0,0,16,8,18,20,61,82,97,91,125,131,125,116,97,104,141,147,139,92,180,172,181,159,159,146,162,118,146,115,197,185,187,169,672,652,946,983,648,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 a6 6. O-O d6 7. a4 h6 8. a5 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} O-O 9. h3 Ba7 10. Be3 d5 11. exd5 Nxd5 12. Bxa7 Rxa7 13. Re1 Nf4 14. Nxe5 Qg5 $1 {[%csl Gf4,LRe5,LRg2,LRh3][%cal Rg5g2][%mdl 64] Double Attack} 15. Ng4 h5 16. Ne3 {[#]} Ne5 $146 ({Predecessor:} 16... Bxh3 17. Qf3 Ne5 18. Qg3 Bg4 19. Nd5 Nxc4 20. Qxf4 Qxf4 21. Nxf4 Nxb2 22. Ra2 g5 23. Rxb2 gxf4 {1-0 (47) Svidler,P (2719)-Harikrishna,P (2731) Hamburg 2019}) 17. Nd2 $1 Nxc4 18. dxc4 {aiming for Nf3.} Rd8 19. Kh2 Bxh3 {[#] White must now prevent ...Rxd2!} 20. Ne4 $1 {[%cal Re4g5]} ({Much worse is} 20. gxh3 $6 Qh4 $15) 20... Qh4 {( -> ...Bxg2+)} 21. g3 {[%mdl 64] Double Attack} Rxd1 22. gxh4 Rxa1 23. Rxa1 Bg4 24. Nxg4 hxg4 $16 {[%mdl 4096] Endgame KRN-KRN} 25. Rd1 Ne6 (25... f5 $16) 26. Ng5 $18 Nxg5 {KRN-KR} 27. Rd8+ Kh7 28. hxg5 $16 {Strongly threatening Rd7. KR-KR} b6 {[#]} 29. axb6 $1 cxb6 30. Rd6 Rb7 (30... a5 $16) 31. Kg3 $18 a5 32. Kxg4 b5 $2 (32... a4 33. f4 Rb8) 33. c5 b4 34. c6 Rb5 35. c4 $2 ({White should try} 35. c7 $18 Rc5 36. cxb4 Rxc7 37. bxa5) 35... Rc5 $11 {The position is equal.} 36. b3 {And now Rd5 would win.} a4 $1 37. bxa4 {f4 is the strong threat.} b3 38. Rd3 Rxc6 39. Rxb3 {Accuracy: White = 93%, Black = 64%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.22"]
[White "Aryan Chopra"]
[Black "Karthikeyan, Murali"]
[Result "1/2-1/2"]
[ECO "B34"]
[WhiteElo "2562"]
[BlackElo "2602"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,69,7,13,-1,21,15,31,24,25,22,29,19,31,19,18,-7,-21,0,-25,-34,14,18,18,23,16,16,16,16,13,13,15,14,18,5,6,13,19,35,35,8,8,8,6,2,4,2]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Nd5 Nxd5 8. exd5 Nb8 9. a4 Be7 10. Be2 O-O 11. O-O Nd7 12. Kh1 a6 13. Na3 f5 14. f4 {B33: Sicilian: Pelikan and Sveshnikov Variations.} b6 {Recently 14...exf4 got a lot of attention.} 15. a5 {[#]} Rb8 $146 ({Predecessor:} 15... b5 16. c4 Qxa5 17. Bd2 Qb6 18. Nxb5 Qb8 19. Nc3 exf4 20. Bxf4 Qxb2 21. Nb5 Qb4 {1-0 (65) Gallagher,J (2565)-Cherniaev,A (2503) Saas Almagell 2005}) 16. axb6 {White is slightly better.} Nxb6 17. c4 Bf6 18. Nc2 Nd7 19. b4 exf4 20. Bxf4 Bxa1 21. Qxa1 Re8 22. Bh5 Re4 {[#] ...Qh4 is the strong threat.} (22... g6 $5 {[%cal Rg6h5]} 23. Bf3 Ne5 $11) 23. Bxd6 Rb6 24. c5 Rxd6 $1 25. cxd6 Nf6 26. Bf3 Re8 27. Qc3 Qxd6 28. Qc5 Qe5 29. d6 Bd7 30. Nd4 Qe3 31. Nc6 {aiming for Ne7+.} Qd3 32. Kg1 Bxc6 {The position is equal.} 33. Bxc6 Rd8 34. d7 {[%mdl 64] [#] Decoy} Nxd7 35. Qd5+ {An uneventful encounter. Accuracy: White = 89%, Black = 95%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.23"]
[White "Sanal, Vahap"]
[Black "Kovalev, Vladislav"]
[Result "1/2-1/2"]
[ECO "C77"]
[WhiteElo "2569"]
[BlackElo "2650"]
[Annotator "TA"]
[PlyCount "139"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,139,18,25,22,14,24,17,16,12,17,0,4,-1,0,-12,18,10,32,23,24,0,27,22,66,30,33,34,27,20,24,2,11,8,5,13,18,0,0,-38,-24,-18,-15,-52,-27,-23,-11,-4,-12,-29,-19,-75,-76,-92,-91,-106,-84,-106,-104,-101,-104,-116,-116,-115,-115,-117,-117,-116,-116,-168,-169,-180,-169,-120,-50,-50,-58,-143,-149,-149,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. c3 g6 7. Nbd2 Bg7 8. O-O O-O 9. Re1 Re8 {C77: Ruy Lopez: 3...a6 4 Ba4 Nf6, unusual lines.} 10. Nf1 b5 11. Bc2 Bb7 12. Ng3 Nb8 13. d4 Nbd7 14. Bg5 h6 15. Bd2 {[#]} Qe7 $146 ({Predecessor:} 15... c5 16. d5 c4 17. h3 Nc5 18. Be3 Nfd7 19. Qd2 h5 20. Bg5 Bf6 21. Bxf6 Qxf6 {½-½ (30) Neelotpal,D (2514)-Sriram,J (2453) Canberra 2009}) 16. h3 Nh7 17. Qc1 h5 18. a4 c5 {[%cal Re5d4]} 19. d5 Nb6 20. Qd1 (20. a5 $5 {[%cal Ra5b6]} Nd7 21. b3 $14) 20... Bc8 21. axb5 axb5 22. Qe2 Bd7 23. Bd3 c4 24. Bc2 Rec8 25. Rxa8 Rxa8 26. Be3 Qd8 27. Qf1 Na4 28. Bxa4 Rxa4 29. Nd2 Ra2 (29... h4 $5 {[%cal Rh4g3]} 30. Ne2 f5 $15) 30. Ra1 Qa8 31. Rxa2 Qxa2 32. Qc1 Qa8 33. f3 (33. f4 $11) 33... f5 $36 {[%mdl 2048] Black is really pushing.} 34. Ne2 f4 35. Bf2 g5 $1 36. Kf1 g4 37. hxg4 hxg4 38. fxg4 Bxg4 39. Ng1 Nf6 40. Ngf3 Bh5 41. Nh4 Bf8 42. Qe1 (42. Qb1 $17 {might work better.}) 42... Qa4 $19 43. g3 fxg3 $1 44. Be3 Ng4 ({Better is} 44... Bg4 $17 {Strongly threatening ...Qa2.} 45. Kg2 Qc2) 45. Nf5 $15 Qc2 46. Qxg3 (46. Nxg3 $15 Bg6 47. Qe2 Nxe3+ 48. Qxe3) 46... Qxb2 $17 47. Kg1 {[#]} Kf7 ({Much worse is} 47... Qxc3 $6 48. Qh4 $11) (47... Qc2 $1 $17 {Threatens to win with ...b4.} 48. Bg5 {[#]} b4 $1 {[%mdl 512]}) 48. Qh3 $11 {The position is equal.} Nf6 {aiming for ...Bg4.} 49. Nh6+ Bxh6 50. Qe6+ {[%mdl 64] [#] Double Attack} Kg6 $1 51. Qf5+ {[#]} Kf7 $1 52. Qe6+ {[#]} Kg6 $1 53. Qf5+ Kg7 54. Bxh6+ Kxh6 55. Qxf6+ {[%mdl 64] Double Attack} Bg6 56. Nf3 Qc1+ 57. Kf2 Qc2+ {[%mdl 64] Double Attack} 58. Kg3 {White threatens Qf8+ and mate.} Qxe4 {White should prevent ...Qf5.} 59. Qxd6 {Hoping for Qf8+.} Qf4+ 60. Kf2 {[#]} b4 $1 {[%mdl 512]} 61. Qxe5 (61. cxb4 c3) 61... Qxe5 62. Nxe5 bxc3 {[%mdl 4096] Endgame KB-KN} 63. Ke3 c2 64. Kd2 c3+ 65. Kc1 Bf5 66. d6 Kg7 67. d7 Bxd7 $1 68. Nxd7 Kh8 69. Kxc2 Kh7 70. Kxc3 {Accuracy: White = 84%, Black = 88%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.24"]
[White "Narayanan.S.L"]
[Black "Frolyanov, Dmitry"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2637"]
[BlackElo "2556"]
[Annotator "TA"]
[PlyCount "128"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,128,32,16,0,-1,0,0,0,0,0,0,0,0,-43,6,-10,-14,-33,64,57,58,87,228,239,339,332,341,323,304,273,273,273,304,306,322,242,253,243,431,436,436,436,428,302,297,298,427,207,203,147,156,143,197,137,140,138,137,139,138,139,138,145,152,152,169,162,151,151,170,170,232,239,281,274,274,274,274,274,274,274,274,274,274,274,274,274,518,497,786,491,708,693,7123,7163,5943,6064,5239,5658,2020,4950,3501,1728,6420,6081,4947,3562,1502,799,1003,696,696,518,518,475,279,240,204,207,300,8,8]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 dxc4 5. e4 Bb4 6. Bxc4 {D24: Queen's Gambit Accepted: 3 Nf3 Nf6 4 Nc3.} Nxe4 7. O-O Nxc3 8. bxc3 Be7 9. Qe2 O-O 10. Rd1 Nd7 11. Rd3 c5 12. Ne5 cxd4 {[#]} 13. Bf4 $146 ({Predecessor:} 13. cxd4 Nb6 14. Rh3 Bg5 15. Bd3 f5 16. Ba3 Rf6 17. Qh5 h6 18. Ng6 Rxg6 19. Qxg6 {½-½ (40) Murtazin,B (2358)-Korovin,M (2269) Kazan 2016}) 13... b5 (13... Nf6 $15) 14. Bxb5 $14 Nxe5 15. Bxe5 Bb7 (15... Qd5 $16 {is a better defense.} 16. Rxd4 Qc5) 16. Rxd4 $40 {[%mdl 128] White attacks with force.} Bd5 (16... Qb6 {was called for.} 17. Rd7 Bf6) 17. c4 f6 18. Bg3 (18. cxd5 fxe5 19. Rd2 (19. Qxe5 Bf6 $11) 19... Bg5 $14) 18... Qb6 19. Rxd5 (19. cxd5 Qxd4 20. Rd1 (20. Qxe6+ Kh8 $11) 20... Qc5 $16) 19... exd5 20. Qxe7 a6 21. Bd7 Qd4 22. Rb1 {[%cal Ba1b1,Bb1b7,Bb7d7][%mdl 32]} dxc4 23. h4 {Rb7 is the strong threat.} c3 $2 (23... Kh8 24. Rb7 Rg8) 24. Rb7 {White wants to mate with Be6+.} (24. Be6+ Kh8 $18) 24... Kh8 {Hoping for ...c2.} 25. Bf5 {[%csl Gb7][%cal Re7g7]} Rg8 {next ...Qd1+ is good for Black.} 26. Rd7 Qc4 {White must now prevent ...c2.} 27. Rc7 Qxa2 {[#]} (27... Qd5 $142) 28. Qe3 (28. Qxf6 $142 $1 {[%mdl 512] Threatening mate with Qh6!} Qd5 (28... gxf6 29. Rxh7#) 29. Qe5 Qxe5 30. Bxe5) 28... Qd5 29. Bg4 Qd2 30. Qc5 c2 (30... a5 $16) 31. Qxc2 (31. Bf3 $18) 31... Qxc2 $16 32. Rxc2 a5 33. Rc3 a4 {With the idea ...a3.} 34. Bd6 Rgd8 35. Ba3 Rd4 36. Bf3 Rad8 {And now ...Rd3 would win.} 37. Be7 Rb8 38. h5 h6 {[#]} 39. Rc7 $1 Rd2 (39... Rf4 {was worth a try.} 40. Ra7 Rb1+ 41. Kh2 Rb5) 40. Ra7 $18 Ra2 41. g4 Re8 {[#]} 42. Bc6 $1 Rc8 43. Bd7 (43. Rxa4 Rxa4 44. Bxa4 Rc4 $16) (43. Bxa4 Rc4 $14) 43... Rb8 44. Kg2 ({But not} 44. Rxa4 $6 Rxa4 45. Bxa4 Kg8 $18) ({Weaker is} 44. Bxa4 Rc8 $16) 44... Rd2 45. Kg3 Re2 46. Bf5 Ra2 47. f3 Ra1 $2 (47... Rab2 48. Rxa4 Kg8 49. Be6+ Kh8) 48. Kf4 Re8 (48... Rd1 $142 49. Rxa4 Re1) 49. Bg6 Rb8 (49... Rc8 $142 50. Be4 Rac1 51. Rxa4 Re8) 50. Be4 a3 51. Kf5 a2 52. Kg6 Rd1 53. Rxa2 Rd7 54. Kf7 (54. Bc5 $142 Rbd8 55. Bc6) 54... Rc7 55. Ra4 (55. Bf5 $142 Rg8 56. Bg6) 55... Rd8 56. Bf5 Rg8 57. Rd4 Ra8 58. f4 Rb8 59. Rd6 Ra7 60. Rc6 Rg8 61. Re6 Rb8 62. g5 fxg5 63. fxg5 Rbb7 64. gxh6 $2 (64. Be4 $18 Rc7 65. g6 (65. gxh6 Rxe7+ 66. Rxe7 Rxe7+ 67. Kxe7 gxh6 $11)) 64... Rxe7+ $1 {Accuracy: White = 74%, Black = 60%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.25"]
[White "Shtembuliak, Evgeny"]
[Black "Chanda, Sandipan"]
[Result "1-0"]
[ECO "A81"]
[WhiteElo "2628"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "127"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,127,34,42,39,39,43,43,47,47,2,52,39,36,34,29,28,31,43,31,18,22,29,22,14,17,16,35,23,42,37,36,37,54,53,69,56,103,102,133,133,133,133,133,133,133,116,118,118,130,128,166,161,161,103,80,0,154,129,129,113,113,117,118,117,208,185,491,454,446,187,670,649,630,247,247,247,1405,516,1374,1221,1305,1218,907,743,4133,1537,1149,1292,5028,4133,3297,4002,2380,2189,1756,1567,6158,5189,6211,6211,6211,6211,6211,6179,6067,5812,5722,5722,2654,228,29974,29975,29977,29978]} 1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. c4 g6 5. Nf3 Bg7 6. O-O O-O 7. Nc3 d5 8. Bf4 c6 9. Qc1 $5 {[%mdl 4] [#] A promising side line. A87: Dutch Defence: Leningrad System: 5 Nf3.} Nbd7 $146 ({Predecessor:} 9... Ne4 10. Be5 Nd7 11. Bxg7 Kxg7 12. b4 Qc7 13. cxd5 Nxc3 14. Qxc3 exd5 15. e3 Qd6 16. Rab1 a6 {0-1 (28) Fernandes,M (1939)-Garcia Garcia,A (2158) Coimbra 2016}) 10. Bd6 Re8 11. Ne5 {White is slightly better.} Nxe5 12. Bxe5 (12. dxe5 {with more complications.} Ng4 13. f4 Bf8 14. Bxf8 Rxf8 15. Kh1) 12... Ne4 13. Nxe4 Bxe5 14. dxe5 fxe4 15. f3 exf3 16. Rxf3 Rf8 17. Rxf8+ Qxf8 18. Qe3 Bd7 19. c5 Qe7 20. h4 Kh8 21. Rf1 Rf8 22. b4 Rxf1+ 23. Bxf1 Qf8 24. Qg5 Bc8 25. Bh3 Kg7 26. h5 Bd7 27. Kg2 Bc8 28. a3 Bd7 29. Bg4 Bc8 30. e3 Bd7 31. Bh3 Qf7 32. h6+ Kf8 33. Qd8+ Qe8 {[#]} 34. Qf6+ ({Better is} 34. Qc7 $1 $18 {[%cal Rc7b7]} Qc8 35. Qd6+ Kf7 36. Kf3) 34... Qf7 $16 {Strongly threatening ...Qxf6.} 35. Qd8+ (35. Qf4 $142) 35... Qe8 $1 {[%cal Re8d8] [#] Black is on the road to losing.} 36. Qc7 $1 ({Don't do} 36. Qf6+ $6 Qf7 $16) 36... Qc8 37. Qd6+ Kf7 38. e4 dxe4 39. Kf2 Be8 (39... Ke8 $16 {was necessary.} 40. Ke3 Qd8) 40. Ke3 Qd7 $2 (40... b5 41. Bg2 (41. Kxe4 Bd7 $18) 41... Kg8 42. Bxe4 (42. Kxe4 Kf7 $18) 42... Kf7) 41. Kxe4 Qe7 42. Bg4 (42. a4 $142 Bd7 43. Bf1) 42... Qd7 $2 (42... b6 43. Kd4 b5) 43. Be2 $18 Qe7 44. Qd2 $2 (44. a4 Qg5 45. Qc7+ Qe7 46. Qb8) 44... Kg8 45. Qf4 Qf8 $2 (45... b5 46. Qf6 Qf7) 46. Qxf8+ Kxf8 {[%mdl 4096] Endgame KB-KB} 47. Kf4 Ke7 48. Kg5 Kf7 49. a4 a6 50. Bc4 (50. Bf3 $142 Ke7 51. Kf4) 50... Ke7 51. Bd3 Bf7 52. Bc2 Be8 53. Be4 Kf7 54. b5 cxb5 55. axb5 axb5 56. Bxb7 Ke7 57. Be4 b4 58. Kf4 b3 59. Ke3 b2 60. Kd2 Bc6 61. Bb1 Bf3 62. Kc3 Bg4 $2 (62... Bc6 $18 63. Kxb2 Be8) 63. Kxb2 Bf5 64. Bxf5 {Accuracy: White = 82%, Black = 60%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.26"]
[White "Praggnanandhaa R"]
[Black "Grigoriants, Sergey"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2602"]
[BlackElo "2539"]
[Annotator "TA"]
[PlyCount "47"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,47,5,29,22,24,24,21,27,26,22,22,21,30,20,33,21,24,20,34,-8,-5,-5,-8,-50,-2,-47,-35,-32,11,-40,-52,-45,-49,-72]} 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. O-O c6 6. b3 O-O 7. Bb2 a5 8. c4 Ne4 9. e3 {D78: Fianchetto Grünfeld: 6 0-0 c6.} Bg4 10. h3 Bxf3 {[#]} 11. Bxf3 $146 {The position is equal.} ({Predecessor:} 11. Qxf3 e6 12. Qe2 f5 13. Nc3 Qd6 14. a3 Nd7 15. b4 axb4 16. c5 Qe7 17. axb4 {½-½ (39) Darcyl,T (2350)-Bruno,A (2290) Buenos Aires 1990}) 11... e6 12. Nc3 Nxc3 13. Bxc3 Nd7 14. Rb1 Qc7 15. Qe2 Rfd8 16. Rfc1 Nf6 17. cxd5 exd5 18. b4 axb4 19. Rxb4 Ne8 20. Be1 Ra7 21. Qc2 Bf8 22. Rb3 ({Better is} 22. Ra4 $11 Rda8 23. Rxa7 Rxa7 24. a4) 22... Qd7 $15 23. Bg4 f5 24. Be2 {Accuracy: White = 70%, Black = 84%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.27"]
[White "Basso, Pier Luigi"]
[Black "Moroni, Luca Jr"]
[Result "1/2-1/2"]
[ECO "D55"]
[WhiteElo "2600"]
[BlackElo "2536"]
[Annotator "TA"]
[PlyCount "45"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,45,24,24,20,28,29,41,31,40,19,23,22,21,24,26,24,19,23]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bg5 h6 6. Bxf6 Bxf6 7. e3 O-O 8. Rc1 c6 9. Bd3 Nd7 10. O-O dxc4 11. Bxc4 e5 12. Ne4 exd4 13. Nxf6+ Nxf6 14. Qxd4 Qxd4 15. Nxd4 Re8 16. Rfd1 {D55: Queen's Gambit Declined: 4 Bg5 Be7: Lines without ...h6 and 6...h6 7 Bxf6.} Bd7 17. b4 a5 18. b5 {White is slightly better.} cxb5 19. Bxb5 Bxb5 20. Nxb5 {[#] Black must now prevent Nc7.} Red8 21. Rd4 Rac8 22. Rxd8+ Rxd8 23. Nd4 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.28"]
[White "Pranesh M"]
[Black "Puranik, Abhimanyu"]
[Result "1/2-1/2"]
[ECO "C78"]
[WhiteElo "2425"]
[BlackElo "2597"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,78,48,45,43,41,31,25,22,-19,-20,-14,-17,-18,0,-1,0,0,0,0,0,-29,-22,-34,0,0,0,-23,-23,-21,-27,-43,-26,-26,-26,-25,-21,-123,-51,-51,-51,-51,-52,-54,-54,-54,-54,-52,-53,-56,-17,-25,-26,-108,-8,-8,-8,-15,-15,-17,-15,-54,-17,-40,-47,-55,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. c3 b5 7. Bc2 d5 {C78: Ruy Lopez: Archangelsk and Möller Defences.} 8. d4 {[#] exd5 is the strong threat.} dxe4 {[%cal Re5d4]} 9. dxc5 {Threatens to win with Qxd8+.} Qxd1 {White has an edge.} 10. Rxd1 {Strongly threatening Nh4.} (10. Bxd1 {with more complications.} exf3 11. Bxf3 e4 12. Be2 Bg4 13. Bxg4 Nxg4 14. a4) 10... exf3 11. gxf3 {[#]} O-O $146 ({Predecessor:} 11... Bh3 12. f4 O-O 13. f3 Rad8 14. Rxd8 Rxd8 15. fxe5 Nxe5 16. Kf2 Nd3+ 17. Bxd3 Rxd3 {½-½ (28) Raeuchle,D-Viskin,V (2126) Stuttgart 2004}) 12. Bg5 Nd8 13. a4 Rb8 14. axb5 axb5 15. b4 Ne6 16. Bxf6 gxf6 17. h4 Bb7 18. Nd2 Rfd8 19. Be4 Bxe4 20. Nxe4 Kg7 21. Ng3 Kg6 22. h5+ Kh6 23. Kh2 Kg5 24. c6 {[#]} (24. Ne4+ $11 Kf5 25. Kg3) 24... Rxd1 (24... f5 $1 $17 25. Rd7 Rxd7 26. cxd7 Rd8) 25. Rxd1 $17 {[%mdl 4096] Endgame KRN-KRN} f5 $1 26. Rd5 $1 {[%cal Rd5e5]} Kf6 $1 27. h6 $1 Rb6 28. Nh5+ $1 Kg6 29. Ng7 $1 Rxc6 30. Rxe5 Rxc3 {And now ...Nd4 would win.} 31. Nxe6 fxe6 $15 {KR-KR} 32. Kg3 (32. Rxe6+ $11 {keeps the balance.} Kh5 33. Kg3) 32... c6 ({Black should try} 32... Kxh6 $17 {White should prevent ...c6.} 33. Rxb5 Kg5) 33. Rxe6+ $11 Kg5 34. Rd6 Rc4 35. Re6 f4+ 36. Kg2 Kf5 (36... Rxb4 $5 {[%cal Rb4c4]} 37. Rxc6 Rb1 38. Rc5+ Kxh6 $15) 37. Re7 Kg6 38. Re6+ Kf7 (38... Kh5 $15) 39. Rd6 $1 Rxb4 {Accuracy: White = 77%, Black = 74%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.29"]
[White "Krishna C R G"]
[Black "Sargsyan, Shant"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2443"]
[BlackElo "2594"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,105,0,8,5,20,5,14,0,3,0,8,4,13,4,31,22,23,14,31,39,49,6,14,0,37,33,81,57,47,29,89,64,64,42,44,54,46,60,142,58,70,40,96,26,46,39,106,75,77,72,75,78,87,62,61,59,72,64,64,68,74,63,67,61,93,91,104,43,33,13,19,0,9,0,0,0,8,0,161,162,250,244,239,245,300,240,247,133,151,103,97,0,42,41,68,8,8,12]} 1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 O-O 5. e5 Nh5 6. Bc4 {A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems.} d6 {[#]} 7. exd6 $146 ({Predecessor:} 7. O-O Nc6 8. Qe2 Na5 9. Qe3 dxe5 10. dxe5 Nxc4 11. Nxc4 Qd5 12. Ncd2 h6 13. b3 g5 {½-½ (31) Al Sayed,M (2502)-Ganguly,S (2631) Sharjah 2014}) 7... exd6 8. O-O d5 9. Bb3 Be6 10. Re1 Nd7 11. Nf1 {[%cal Bd2f1,Bf1e3,Be3g4,Bg4e5][%mdl 32]} Ndf6 12. Ng5 Bc8 13. h3 {next g4 is good for White.} h6 14. Nf3 Ne4 15. Ne3 Be6 16. Ng4 Kh7 17. Nge5 b6 18. Be3 f5 19. Qe2 Nhf6 (19... c5 $11) 20. Rad1 g5 21. c3 Qe8 22. Bc2 Kg8 23. Bc1 f4 (23... c6 $14) 24. Nh2 (24. c4 $16) 24... Bf5 $14 25. Nf1 Qe6 (25... Nd6 $14) 26. f3 (26. Ba4 $16) 26... Nd6 $11 27. Ba4 Nc4 (27... b5 $1 $14 28. Bxb5 Nxb5 29. Qxb5 Rfe8) 28. b3 Nxe5 29. Qxe5 Qc8 30. Bc6 Rb8 31. Bxd5+ Kh8 {And now ...Re8 would win.} 32. Be6 $1 {[%cal Re6c8]} Bxe6 33. Qxe6 Qxe6 34. Rxe6 Nd5 35. Bb2 b5 36. Nd2 b4 37. cxb4 Nxb4 38. Nc4 ({White should play} 38. a3 $16 Nc2 39. Re7) 38... Nxa2 $14 39. Ra1 Nb4 40. Ne5 {Black must now prevent Ng6+.} Kh7 41. Rxa7 Nd5 42. Ra5 Ne3 43. Ba3 Rf5 $2 (43... Rg8 $11 {and Black has nothing to worry.}) 44. Re7 $36 {[%mdl 2048] Black is under strong pressure.} Rxb3 (44... Rc8 $142 45. Bc1 Kg8 46. Bxe3 fxe3) 45. Rxc7 {Hoping for Raa7.} Rf6 46. Raa7 Nf5 47. Kf2 Rb1 {[#]} 48. Ke2 ({White should try} 48. Bc5 $1 $18) 48... Nxd4+ $16 49. Kd2 Ne6 50. Rc6 (50. Re7 $16 {Strongly threatening Nd7.} Ra1 51. Nd7 Ra2+ 52. Kd1) 50... Rb5 51. Be7 Rf5 52. Rxe6 (52. Nd3 $1 $14 Nd4 {[#]} 53. Bf6 $1 {[%mdl 512]} Nxc6 54. Rxg7+ Kh8 55. Rxg5+ Kh7 56. Rg7+ Kh8 57. Bc3) 52... Rfxe5 $11 53. Rxe5 {Accuracy: White = 65%, Black = 65%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.30"]
[White "Badelka, Olga"]
[Black "Can, Emre"]
[Result "1-0"]
[ECO "A37"]
[WhiteElo "2404"]
[BlackElo "2600"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,75,3,-10,-5,-12,25,19,25,22,15,20,24,31,37,37,39,39,40,41,46,41,96,86,89,87,83,79,89,83,87,93,93,106,131,112,115,100,117,113,89,89,113,55,60,67,56,27,31,5,70,0,92,0,217,237,924,911,761,753,1622,1496,29994,29990,29991,29992]} 1. c4 g6 2. Nc3 c5 3. Nf3 Bg7 4. g3 Nc6 5. Bg2 e5 6. O-O Nge7 7. Ne1 O-O {A37: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3.} 8. a3 a5 9. Nc2 d6 {The position is equal.} 10. d3 Be6 11. Ne3 Rb8 12. Ned5 Bc8 13. Rb1 Nxd5 {[#]} 14. cxd5 $146 ({Predecessor:} 14. Bxd5 Bh3 15. Re1 Qd7 16. Bd2 Be6 17. Qa4 Ra8 18. Bg2 Rfb8 19. Nd5 Qd8 20. Qd1 {1-0 (62) Schwarzmeier,K (2149)-Steiner,M (1990) Bayern 2008}) 14... Nd4 15. e3 Nf5 16. b4 cxb4 ({Black should play} 16... axb4 $14 17. axb4 Bd7) 17. axb4 $16 Bd7 18. Ba3 b5 19. bxa5 Qxa5 {[%mdl 64] Double Attack} 20. Bb4 Qb6 21. Ne4 h5 22. h3 Rfd8 23. g4 hxg4 24. hxg4 Nh6 25. Qd2 {Hoping for g5.} (25. Bxd6 $6 Bxg4 26. Bc5 Bxd1 $11) 25... Ra8 26. g5 ({Much weaker is} 26. Bxd6 $6 f5 $11) 26... Nf5 27. Nf6+ (27. Ra1 $16) 27... Bxf6 $1 $14 28. gxf6 Kh7 $1 29. e4 Nd4 30. Kh2 Rg8 $1 31. f4 {Kg3 is the strong threat.} (31. Kg3 $5 {[%cal Rf1h1]} g5 32. Rh1+ Kg6 33. Bh3 $14) 31... Rh8 {[#]} 32. Kg3 $1 $40 {[%mdl 128] White attacks.} exf4+ $2 (32... Kg8 $11 {and Black has nothing to worry.}) 33. Rxf4 $18 {White wants to mate with Rh4+.} ({Worse is} 33. Kxf4 g5+ 34. Kg3 Kg6 $11) 33... g5 $2 {[#]} (33... Kg8 34. Rh4 Rxh4 35. Kxh4 Qd8) 34. Rg4 $1 {[%mdl 512] Intending Rh1+ and mate.} Ne2+ (34... Bxg4 35. Qxg5) 35. Qxe2 Kg6 {[#]} 36. e5 $1 {Threatening mate with Be4+.} dxe5 37. Be4+ Kxf6 38. Rf1+ {Accuracy: White = 88%, Black = 66%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.31"]
[White "Karthik Venkataraman"]
[Black "Chigaev, Maksim"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "2483"]
[BlackElo "2616"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,60,24,37,17,16,11,11,16,1,8,15,4,5,6,4,-105,-112,-108,-110,-111,-108,-119,-102,-219,-246,-227,-229,-234,-232,-239,-235,-327,-311,-327,-208,-189,-209,-172,-206,-188,-141,-321,-320,-318,-303,-297,-151,-1035,-1027,-1298,125]} 1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 7. Bf4 {D90: Grünfeld: 4 Nf3 Bg7 sidelines.} Be6 8. Qa3 c5 9. e4 {The position is equal.} cxd4 10. Nb5 O-O 11. Nc7 $1 {[%cal Rc7a8]} Nc6 12. Nxa8 Qxa8 {[#]} 13. Be2 $146 (13. Rc1 $11) ({Predecessor:} 13. Rc1 f5 14. e5 Nd5 15. Bd2 Nxe5 16. Nxd4 Bf7 17. Be2 Nb6 18. b3 Qd8 19. Nf3 {½-½ (66) Navara,D (2729)-Wei,Y (2675) Wijk aan Zee 2015}) 13... Nc4 $1 $36 {[%cal Rc4a3][%mdl 2048] Black is really pushing.} 14. Bxc4 Bxc4 15. Rc1 Bb5 $1 {[%mdl 1024] Black has strong compensation.} 16. Qb3 Ba6 $1 17. e5 {[#]} (17. Bd2 $17) 17... b6 $1 $19 {...Nxe5! is the strong threat.} 18. Kd1 Na5 19. Qc2 d3 20. Qa4 Bb7 21. Nd4 Bxg2 22. Re1 {[#]} d2 $1 {[%mdl 512]} 23. Bxd2 (23. Kxd2 Rd8) 23... Rd8 ({Inferior is} 23... Bf3+ 24. Nxf3 Qxf3+ 25. Re2 $11) 24. Rc2 Qd5 $1 {[%csl LRd4,LRe5][%mdl 64] Strongly threatening ...Be4. Double Attack} 25. Nb3 {[%cal Rb3a5]} Nxb3 26. axb3 $2 (26. Qxb3 $17 {was the only defense.} Be4 27. Qxd5 Bxc2+ 28. Kxc2 Rxd5 29. f4) 26... Bh6 {[%cal Rh6d2]} ({But not} 26... Bxe5 27. Kc1 $17) 27. f4 b5 28. Qb4 {[#]} a5 ({Better is} 28... Bh3 $1 $19 {Threatens to win with ...Bf5.} 29. Qe4 Qe6) 29. Qxe7 $2 (29. Qc5 $17) 29... Bxf4 {[%cal Rd5d2]} 30. e6 Qxd2+ {[%mdl 32768] Black took control after the opening. Accuracy: White = 60%, Black = 77%. . Loss on time!?} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.32"]
[White "Ivic, Velimir"]
[Black "Raja Harshit"]
[Result "1/2-1/2"]
[ECO "C65"]
[WhiteElo "2558"]
[BlackElo "2472"]
[Annotator "TA"]
[PlyCount "147"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,147,19,24,19,12,10,20,26,26,4,12,10,25,31,24,0,16,3,25,20,19,19,26,25,35,32,35,19,35,33,35,35,50,38,94,93,117,114,131,129,127,121,121,118,122,118,157,131,138,139,142,35,40,36,28,-22,0,0,40,48,31,77,88,0,0,-72,-70,-65,0,-26,-14,-87,0,0,0,-41,-16,-40,-31,-20,-22,-32,-23,-29,-34,-129,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-226,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bxc6 dxc6 6. O-O {C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5.} Nd7 {6...Qe7 deserves study. Played by Jeffery Xiong in January 2020.} 7. c3 O-O 8. d4 Bd6 9. Bg5 f6 10. Bh4 c5 11. Bg3 Qe7 12. dxe5 {[#]} Nxe5 $146 ({Predecessor:} 12... fxe5 13. Nbd2 Nb6 14. Qe2 Bg4 15. h3 Bh5 16. Rfe1 Kh8 17. Qe3 h6 18. Nh4 Qf6 {0-1 (47) Wang,H (2758)-Paravyan,D (2629) Caleta 2020}) 13. Nxe5 fxe5 14. Nd2 Be6 15. Qe2 Qf7 16. b3 c6 17. Rfd1 Bc7 18. f3 Rfd8 19. Bf2 Qe7 20. Nc4 b5 21. Nb2 Ba5 (21... c4 $14) 22. c4 $1 $16 Bc3 23. Rac1 b4 24. Nd3 Rd4 25. Bxd4 Bxd4+ 26. Kh1 Rf8 27. Ne1 Qh4 28. Rxd4 cxd4 29. Nd3 Rf6 30. Nxe5 (30. Qe1 $16 Qg5 31. Nxb4 (31. Qxb4 Qe3 $14)) 30... Rh6 $1 $14 {[%csl Gh6][%cal Rh4h2]} 31. g4 Qg3 $1 {[%cal Rg3e5]} 32. Nxc6 d3 $36 {[%mdl 2048] Black fights for an advantage.} 33. Qg2 d2 (33... Qd6 $5 {[%cal Rd6c6]}) 34. Qxd2 (34. Qxg3 $2 {too greedy.} dxc1=Q+ 35. Kg2 Qd2+ 36. Kg1 Qd1+ 37. Kf2 Qd2+ 38. Kg1 Qd1+ 39. Kf2 Qd2+ 40. Kg1 $19) 34... Qxf3+ 35. Qg2 $1 {[%cal Rg2f3]} Qf4 36. Rg1 (36. Re1 $1 $16) 36... Bxg4 $11 37. Nd4 (37. Ne7+ $11 Kf7 38. Nd5 Rxh2+ 39. Qxh2 Bf3+ {[%mdl 64] Double Attack} 40. Rg2 Qc1+ 41. Qg1 Qh6+ 42. Qh2 Qc1+ 43. Qg1 Qh6+ 44. Qh2 Qc1+) 37... Rh4 $1 $17 {[%mdl 1024] Black has strong compensation.} 38. Re1 $1 Qe5 (38... h5 $15) 39. Qf2 Rh6 40. Qg2 (40. Nf5 $1 $11 {remains equal.} Bxf5 41. exf5 Rxh2+ 42. Qxh2 Qxe1+ 43. Kg2) 40... Rh4 (40... Rg6 $1 $17 41. Nf3 Qh5) 41. Qf2 Rh6 42. Nf5 Bxf5 43. exf5 Rxh2+ $1 44. Qxh2 Qxe1+ $15 {[%mdl 4096] Endgame KQ-KQ} 45. Kg2 $1 Qe4+ 46. Kg3 $1 Qxf5 47. Qe2 {[#]} ({Better is} 47. Qh4 $15) 47... h5 (47... Kf7 $1 $17 48. Qd2 a5) 48. Qe7 $11 Qg4+ 49. Kh2 h4 50. Qxb4 Qg3+ 51. Kh1 Qf3+ 52. Kh2 Qg3+ 53. Kh1 g5 54. Qe7 h3 {[%csl Gh3][%cal Rg3g2]} 55. Qe4 g4 {...Qf3+ is the strong threat.} 56. Qg6+ Kf8 {[%csl Gh3][%cal Rg3g2]} 57. Qf6+ Ke8 {[%csl Gh3][%cal Rg3g2]} 58. Qe6+ Kd8 {[%csl Gh3][%cal Rg3g2]} 59. Qf6+ $1 Kc7 {[%csl Gh3][%cal Rg3g2]} 60. Qe7+ Kc6 {[%csl Gh3][%cal Rg3g2]} 61. Qe4+ $2 {[#]} (61. Qe6+ $11 {and White has nothing to worry.} Kc5 62. Qd5+ Kb4 63. Qd2+ Ka3 64. c5) 61... Kc5 $2 {[#]} (61... Kd7 $1 $19 {Strongly threatening ...Qf3+.} 62. Qf5+ Ke7 63. Qg5+ Ke6 64. Qd5+ Kf6) 62. b4+ $1 {[%mdl 576] Decoy. The position is equal.} Kxb4 63. Qe7+ $1 Kxc4 {[%csl Gh3][%cal Rg3g2]} 64. Qf7+ Kd4 {[%csl Gh3][%cal Rg3g2]} 65. Qxa7+ Ke4 {[%csl Gh3][%cal Rg3g2]} 66. Qb7+ Kd4 {( -> ...Qf3+)} 67. Qb4+ Kd5 {[%csl Gh3][%cal Rg3g2]} 68. Qb5+ Ke6 {[%csl Gh3][%cal Rg3g2]} 69. Qe8+ Kf5 {[%csl Gh3][%cal Rg3g2]} 70. Qd7+ Ke4 {[%csl Gh3][%cal Rg3g2]} 71. Qa4+ Kf3 {[%csl Gf3,Gh3][%cal Rg3g2]} 72. Qb3+ Kf2 {[%csl Gf2,Gh3][%cal Rg3g2]} 73. Qc2+ Kf1 {[%csl Gf1][%cal Rg3g1]} 74. Qc4+ {Accuracy: White = 85%, Black = 88%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.33"]
[White "Kunin, Vitaly"]
[Black "Gadimbayli, Abdulla"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2550"]
[BlackElo "2460"]
[Annotator "TA"]
[PlyCount "142"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,142,12,0,7,0,0,2,4,17,16,8,0,0,0,-5,-19,-6,-6,-42,-8,-10,-6,-23,-16,-16,-20,-58,-28,-20,-11,-22,4,0,0,0,0,0,10,0,0,0,20,34,27,20,37,33,20,22,16,22,31,8,7,0,0,0,2,0,32,32,28,16,18,5,112,102,102,100,139,127,215,209,218,193,191,195,266,268,243,259,240,210,257,252,482,481,464,206,195,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-164,-140,-220,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Qb3 dxc4 5. Qxc4 Bg4 6. Nbd2 Nbd7 {D23: Queen's Gambit Accepted: 3 Nf3 Nf6 sidelines.} 7. g3 e6 8. Bg2 Be7 9. O-O O-O 10. Qb3 Nb6 11. Rd1 {[#]} a5 $146 ({Predecessor:} 11... Qd5 12. Qc3 Qb5 13. e4 c5 14. Re1 Rac8 15. Bf1 Qd7 16. Qa5 cxd4 17. Qxa7 Qc7 {0-1 (32) Kazimova,N (2165)-Tarasova,V (2257) St Petersburg 2009}) 12. Nc4 Nxc4 13. Qxc4 Qd5 14. Qc3 Bb4 15. Qe3 Qb5 16. a3 Be7 17. h3 Bf5 18. Ne5 Bc2 19. Re1 c5 20. Qc3 Bb3 21. dxc5 Bxc5 22. Be3 Bxe3 23. Qxe3 Bd5 24. Bxd5 Nxd5 25. Qd4 Qb6 26. Rad1 Rfd8 27. e4 Qxd4 28. Rxd4 {Black must now prevent Red1.} Nf6 29. Red1 Rxd4 30. Rxd4 $11 {[%mdl 4096] Endgame KRN-KRN} Kf8 31. Kg2 Rc8 32. Kf3 Rc5 33. Nd3 Rc8 34. Rd6 Rc4 35. Rb6 Nxe4 36. Rxb7 Nd6 37. Ra7 a4 (37... Rc2 $11) 38. Nb4 g5 39. Rxa4 Nf5 40. Ra7 Kg7 (40... h5 $16 41. Ke2 h4) 41. Nd3 $18 Rc2 42. Rd7 Kf6 43. g4 Ne7 (43... Nh4+ $142 44. Ke4 Rc4+ 45. Ke3 Ra4) 44. h4 h6 45. hxg5+ hxg5 46. a4 $1 Rc4 47. b4 $1 e5 $2 (47... Nc6 48. b5 Na5) 48. Nc5 Ng6 49. Ne4+ (49. a5 $142 {And now a6 would win.} Rf4+ 50. Ke3 Rxb4 51. a6) 49... Ke6 {[#]} 50. Rb7 $2 (50. Rd6+ $1 $18 Ke7 51. Rb6) 50... Nh4+ $11 51. Ke3 Ng2+ 52. Ke2 Rxe4+ {KRN-KR} 53. Kf3 {[%mdl 64] Double Attack} Kd5 {Strongly threatening ...Nh4+.} 54. Rb5+ Kd4 55. Kxg2 Rxg4+ {KR-KR} 56. Kf3 Rg1 57. a5 {Hoping for a6.} g4+ 58. Ke2 {aiming for a6.} Ra1 59. Rb6 f5 60. a6 $2 {[#]} (60. Rd6+ $11 {and White stays safe.} Kc4 61. Rg6) 60... f4 $1 $19 {[%cal Rf4f3] Threatens to win with ...f3+.} 61. Rd6+ Kc3 $2 (61... Kc4 $19 {...f3+ is the strong threat.} 62. Rc6+ Kb5) 62. Rc6+ $1 $11 {The position is equal.} Kxb4 63. Kd3 {[#]} Kb5 $1 64. Re6 {[#]} e4+ $1 {[%mdl 512]} 65. Rxe4 (65. Kxe4 Re1+) 65... g3 66. fxg3 fxg3 67. Rg4 Ra3+ 68. Ke2 g2 69. Rxg2 Ra2+ 70. Kf3 Rxg2 71. Kxg2 {Intending a7 and mate.} Kxa6 {White used his chance. Accuracy: White = 89%, Black = 76%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.34"]
[White "Gokerkan, Cem Kaan"]
[Black "Sindarov, Javokhir"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "2461"]
[BlackElo "2537"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,86,0,-6,0,0,-32,-14,-12,-7,-21,-20,-8,-13,-33,-38,-45,-46,-37,-44,-62,-36,-62,-66,-72,-37,-103,-83,-75,-96,-189,-198,-205,-152,-225,-220,-211,-211,-210,-206,-250,-263,-327,-317,-295,-325,-344,-342,-307,-299,-296,-172,-247,-247,-325,-318,-292,-292,-442,-440,-969,-960,-1585,-1555,-1387,-1327]} 1. Nf3 d5 2. g3 c6 3. Bg2 Bg4 4. O-O Nd7 5. d3 Ngf6 6. Nbd2 e5 7. h3 Bh5 8. e4 dxe4 9. dxe4 Be7 10. b3 O-O 11. Bb2 Qc7 12. Qe2 Rfe8 13. a4 {A07: Réti Opening: New York and Capablanca Systems.} Bc5 {[#]} 14. Rad1 $146 ({Predecessor:} 14. Qc4 a5 15. Nh4 Rab8 16. Nf5 b5 17. Qd3 Bb4 18. Qe3 Rbd8 19. Nf3 Bg6 20. N3h4 bxa4 21. Rxa4 {1-0 (44) Dvoirys,S (2615)-Delemarre,J (2395) Leeuwarden 1997}) 14... Nf8 15. Nc4 {The position is equal.} N6d7 16. Rd3 f6 17. Rfd1 Red8 18. Ne3 Ne6 19. Nf5 Bf8 20. R3d2 a5 21. Bc3 Kh8 (21... b5 $5) 22. Qe1 b5 23. g4 Be8 24. Nd6 ({White should play} 24. g5 $15) 24... Ndc5 $17 25. Nxe8 Rxe8 26. axb5 (26. Ra1 $17 {might work better.}) 26... cxb5 $19 27. Bf1 Qc6 28. Re2 {[#]} (28. Rd5 $17) 28... Nf4 $1 29. Re3 b4 30. Bb2 Nce6 31. Bc4 Rad8 32. Rxd8 Rxd8 33. Qf1 Bc5 34. Re1 Qb6 {Strongly threatening ...Bxf2+!} 35. Kh2 Bxf2 36. Rd1 Nd4 (36... Rc8 $142 37. Bc1 Be3) 37. Bxd4 ({Don't go for} 37. Qxf2 $2 Nxf3+ 38. Kg3 Qxf2+ 39. Kxf2 Rxd1 $19) (37. Nxd4 $142 Bxd4 38. Bc1) 37... Bxd4 38. Qe1 g5 39. h4 Kg7 {White must now prevent ...Bf2.} 40. h5 (40. Qf1 {was called for.}) 40... Bf2 {Black is clearly winning.} 41. Qh1 {[#]} (41. Qf1 $142 Rxd1 42. Qxd1) 41... Be1 $1 {[%mdl 512] ( -> ...Qf2+)} 42. Rd4 (42. Rxe1 Qf2+) 42... Bc3 43. h6+ Kg6 {White did not feel at home in the position after the opening. Accuracy: White = 45%, Black = 84%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.35"]
[White "Sreeshwan Maralakshikari"]
[Black "Sengupta, Deep"]
[Result "1/2-1/2"]
[ECO "E43"]
[WhiteElo "2440"]
[BlackElo "2534"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,84,22,12,10,14,5,-16,-4,-12,-6,0,6,3,26,12,41,25,25,11,43,38,42,23,28,24,26,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 Ne4 7. O-O f5 8. Qc2 {[%cal Rc3e4]} Nxc3 {E43: Nimzo-Indian: Rubinstein: 4...b6.} 9. bxc3 Bxf3 $1 10. cxb4 Qg5 {[%csl Gf3][%cal Rg5g2] [#]} 11. g3 Qg4 {( -> ...Qh3)} 12. Re1 $1 Nc6 13. a3 {[#]} O-O $146 ({Predecessor:} 13... h5 14. Be2 h4 15. Bxf3 Qxf3 16. Qe2 Qxe2 17. Rxe2 hxg3 18. hxg3 d5 19. Rc2 Kd7 20. Bd2 Ne7 21. cxd5 Nxd5 22. Re1 Rh3 23. e4 fxe4 24. Rxe4 Rh5 25. Rg4 {½-½ (25) Ponomarjov,R (2279)-Siigur,J (2429) ICCF email 2018}) 14. Be2 Ne7 15. Bxf3 Qxf3 16. Qe2 Qb7 (16... Qxe2 {is interesting.} 17. Rxe2 c6 18. a4 Rfb8 19. b5 Kf7) 17. a4 a6 18. Bd2 (18. Bb2 {seems wilder.} c6 19. Bc3 Rac8 20. f3 Ra8 21. Kg2) 18... b5 19. cxb5 axb5 20. Qxb5 (20. a5 {looks sharper.} Nc8 21. f3 Nd6 22. e4 Nc4 23. Qd3) 20... Qxb5 {The position is equal.} 21. axb5 Rxa1 22. Rxa1 $11 {[%mdl 4096] Endgame KRB-KRN} Rb8 23. Ra7 Nd5 24. f3 Rxb5 25. Kf2 Kf7 26. e4 fxe4 27. fxe4 Nxb4 28. Rxc7 Ke7 29. Bxb4+ (29. Rc3 {with more complications.} Nc6 30. Ke3 Rb1 31. Rd3 Rh1 32. h4) 29... Rxb4 {KR-KR} 30. Ke3 g5 31. Rc5 h6 32. h4 Rb3+ 33. Kf2 g4 34. Rh5 Rf3+ 35. Kg2 Rf6 36. Ra5 Rf8 37. Rh5 Rh8 38. Rb5 Kd6 39. Rb6+ Kc7 40. Rb5 Kc6 41. Rc5+ Kd6 42. Rh5 Ke7 {Accuracy: White = 96%, Black = 93%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.36"]
[White "Vignesh N R"]
[Black "Sadhwani, Raunak"]
[Result "0-1"]
[ECO "A88"]
[WhiteElo "2436"]
[BlackElo "2522"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,78,41,22,35,34,31,22,21,11,18,0,20,30,16,13,29,0,31,-67,-47,-64,-56,-99,-96,-100,-99,-167,-172,-142,-160,-174,-176,-150,-50,-182,-76,-70,-84,-347,-364,-362,-354,-469,-485,-474,-463,-460,-452,-441,-451,-594,-579,-760,-737,-888,-876,-950,-930,-931,-929,-888,-883,-857,-840]} 1. d4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. c4 d6 7. Nc3 c6 8. Re1 {8.b3 is a critical line.} Na6 9. b3 Qc7 {A88: Dutch Defence: Leningrad System: 5 Nf3 0-0 6 0-0 d6 7 Nc3 c6.} 10. Ba3 Qa5 {[#]} 11. Qc1 $146 ({Predecessor:} 11. Bb2 e5 12. Qd2 exd4 13. Nxd4 Nc5 14. Rad1 Qc7 15. b4 Nce4 16. Nxe4 Nxe4 17. Qc2 {½-½ (78) Sadzikowski,D (2546)-Vovk,A (2632) Gallipoli 2016}) 11... Bd7 {The position is equal.} 12. e4 fxe4 13. Nxe4 Nxe4 14. Rxe4 Rae8 15. Bb2 Bf5 16. Bc3 Qb6 17. Re2 (17. Rh4 $14) 17... Bg4 $36 {[%mdl 2048] White is under pressure.} 18. Qe3 {[#]} e5 $1 {[%cal Re5e4][%mdl 512]} 19. c5 {[#]} (19. dxe5 Bxf3) 19... exd4 $1 ({Much worse is} 19... dxc5 $6 20. dxe5 Nc7 21. Qe4 $11) 20. Qxe8 Qxc5 21. Bb2 (21. Bxd4 $17 Bxd4 22. Nxd4 Qxd4 23. Rf1 Bxe2 24. Qxe2) 21... Rxe8 $19 22. Rxe8+ Kf7 23. Re4 Bxf3 $1 24. Bxf3 Nb4 (24... Nc7 $17 {Strongly threatening ...d5.} 25. Rd1 Nb5) 25. Rd1 (25. Rf4+ $1 $15 Ke7 26. Rd1) 25... Nc2 (25... Nxa2 $19 {has better winning chances. aiming for ...Nc3.} 26. Rf4+ Kg8 27. Bxd4 Bxd4 28. Rfxd4 d5) 26. Bg4 $17 Be5 27. Rd3 $2 {[%mdl 8192]} (27. Be2 $17 Qa5 28. Bc4+ Kg7 29. a4) 27... Qd5 $19 28. Bf3 {[#] And now Rf4+! would win.} Qa5 $1 29. a3 Ne1 {Black is clearly winning.} 30. b4 Qb5 ({Weaker is} 30... Nxd3 31. bxa5 Nxb2 32. Re1 $17) 31. Rb3 Qc4 32. Bd1 Nd3 33. Ba1 Kg7 34. f4 d5 35. Re2 Nc1 {[%mdl 64] Double Attack, Discovered Attack} 36. Rxe5 Nxb3 37. Bb2 Qd3 38. Bxb3 Qb1+ 39. Bd1 Qxb2 {Accuracy: White = 38%, Black = 84%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.37"]
[White "Lobanov, Sergei"]
[Black "Aditya Mittal"]
[Result "0-1"]
[ECO "B96"]
[WhiteElo "2507"]
[BlackElo "2427"]
[Annotator "TA"]
[PlyCount "140"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,140,50,18,41,52,44,-16,-10,-107,-97,-104,52,0,0,0,0,-654,-610,-708,-696,-675,-679,-623,-454,-480,-522,-499,-417,-410,-193,-194,-210,-194,-145,-227,-138,-222,-236,-221,-233,-784,-745,-6543,-6402,-6195,-5381,-2370,-2103,-1420,-829,-731,0,-1216,-652,-652,-645,-5114,-318,-645,-276,-294,0,0,0,-273,-297,-365,-352,-314,-293,-366,-218,-904,-166,-162,0,0,-8,-8,0,-131,-128,-126,-117,-87,-8,-8,0,-84,-16,-16,-12,-29,0,0,0,0,0,0,0,0,0,-10,-12,-252,-246,-383,-376,-322,-321,-436,-238,-393,-377,-364,-237,-29982,-29983,-29983,-29984,-29993,-29994,-29994,-29995,-29998,-29999]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nbd7 8. Qe2 Qc7 9. O-O-O Be7 {B96: Sicilian Najdorf: 6 Bg5 e6 7 f4, lines other than 7...Qb6 and 7...Be7.} 10. g4 b5 11. Bg2 ({White should try} 11. Bxf6 $14 Bxf6 12. g5 Bxd4 13. Rxd4) 11... b4 $11 {The position is equal.} 12. Nd5 (12. e5 $11 bxc3 13. Bxa8) 12... exd5 $17 13. Nf5 Nc5 $2 ({Inferior is} 13... dxe4 14. Bxe4 Rb8 15. Bc6 $1 $16 {[%mdl 512]} (15. Nxg7+ Kd8 $14)) (13... Nb6 $17 14. Nxg7+ Kd8) 14. e5 (14. Nxg7+ $14 Kf8 15. Bh6) 14... Bxf5 $11 15. exf6 {[%mdl 64] Pin} Be4 $1 ({Much weaker is} 15... gxf6 $6 16. gxf5 fxg5 17. f6 $16) 16. fxe7 $4 {[%mdl 8192] [#]} (16. fxg7 $11 Rg8 17. Rxd5 Bxg2 18. Qxg2) 16... b3 $146 ({Predecessor:} 16... f6 17. Bh4 Qxe7 18. Rhe1 Qb7 19. Bxe4 dxe4 20. Rxd6 Rc8 21. Bf2 O-O 22. Qc4+ Qf7 23. Qxf7+ Kxf7 24. Bxc5 Rxc5 25. Rxe4 {1-0 (41) Fleck,J (2310)-Nielsen,P Esbjerg 1980}) 17. Bxe4 bxa2 {[%cal Rc5b3]} 18. Kd2 Nxe4+ 19. Ke3 h6 20. Bh4 Qb6+ 21. Kf3 Qxb2 {...Nc3 is the strong threat.} 22. Rxd5 a1=Q (22... Nc3 $142 23. Rxd6 g5 {[%mdl 64] Promotion}) 23. Rxa1 Qxa1 24. Kxe4 Qa4+ 25. c4 (25. Kf3 $17 Qc6 26. c4) 25... g5 26. fxg5 (26. Bg3 $17 {keeps fighting.}) 26... hxg5 ({Much less strong is} 26... Rc8 27. Rxd6 hxg5 28. Rd8+ Rxd8 29. exd8=Q+ Kxd8 30. Bxg5+ Kc8 31. Kf4) 27. Bxg5 Rc8 28. Rd4 $2 (28. Kd4 Qa1+ 29. Ke4) 28... Rh3 29. Kf5 Rc5+ 30. Kf4 Qa1 31. Bf6 Qc1+ 32. Ke4 Qh1+ 33. Kf4 Qc1+ (33... Qg1 $142 34. Rxd6 Rxc4+ $3 {[%mdl 512]} 35. Kg5 Qc1+ 36. Qd2 Rc5+ 37. Be5 Rxe5+ 38. Kf4 Qxd2+ 39. Rxd2 Rb5) 34. Ke4 $1 Qc3 35. Rxd6 {[%csl Ge7,Gf6][%cal Rd6d8]} Rxc4+ 36. Bd4 {[#] intending Rd8+.} Qb4 $2 (36... f5+ $1 {[%mdl 512]} 37. Kxf5 Rxd4 38. Rxd4 Qxd4) 37. Rd8+ Kxe7 38. Rd5 {Kf5+ would kill now.} Kf8 39. Rd8+ Ke7 40. Rd5 $1 {White wants to mate with Kf5+.} Rc8 $1 41. Kf5+ Kf8 42. Qe4 {Strongly threatening Bg7+!} Qa3 43. Be5 Kg8 (43... Rf3+ $142 44. Bf4 Re8) 44. g5 $2 (44. Rd6) 44... Qe7 $2 (44... Re8 45. Kg4 Rxh2 $1 {[%mdl 576] Pin}) 45. Bg3 Qf8 $2 ({Better is} 45... Qxe4+ $19 46. Kxe4 Ra8) 46. Kg4 $36 {[%mdl 2048] White is pushing.} Rh7 47. h4 Re8 48. Qa4 (48. Re5 $11 Rb8 49. Kh3) 48... Re3 $17 49. Qc4 Qe8 $1 50. Rd4 Qa8 (50... Kg7 $17 51. Qd5 Qc8+ 52. Kf4 Re8) 51. Rd5 $11 Qe8 (51... Rc3 $11 52. Qxc3 Qxd5 53. Qc8+ Kg7) 52. Rd4 $1 $17 Rg7 (52... Kg7 $17 {Threatening ...Ra3.} 53. Qd5 a5 $1 {[%mdl 512]}) 53. Bf4 $11 Re1 54. Qd3 Qc8+ 55. Kg3 {Hoping for Rd8+.} Re8 56. h5 Qc5 57. Kh4 Qa5 58. Re4 {[%cal Re4e8]} Rd8 59. Qe2 {aiming for Re8+.} Qf5 60. Ra4 $2 {White does not recover from this.} (60. Qc4 $11) 60... Rd3 $19 {[%csl Gd3][%cal Rf5h3]} 61. Qg4 {[#]} (61. Qg2 $142) 61... Qd5 $1 {[%cal Rd5h1] ( -> ...Qh1+)} 62. Ra1 Qe4 63. Qc8+ Kh7 64. Rf1 a5 {[%cal Ba6a5,Ba5a4][%mdl 32]} 65. Rf2 a4 {White must now prevent ...a3.} 66. Kg4 $2 (66. Qg4 $19 Rd4 67. Kg3) 66... Rd5 {Black mates.} 67. Kh3 Qh1+ 68. Bh2 Rdxg5 {[%cal Rg5h5]} 69. Qc2+ f5 70. Rxf5 Rg3+ {Accuracy: White = 53%, Black = 66%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.38"]
[White "Iljiushenok, Ilia"]
[Black "Mendonca, Leon Luke"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2519"]
[BlackElo "2418"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,80,10,20,14,29,11,8,0,6,-4,15,15,29,2,9,23,27,21,18,4,16,0,59,41,91,50,53,41,48,39,42,38,41,36,60,57,48,50,81,79,77,63,62,36,59,0,0,0,0,0,0,0,0,0,0,-17,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-20,0]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. Ba4 a6 5. c4 Ngf6 6. Nc3 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} e6 7. O-O Qc7 8. Qe2 Be7 9. d4 cxd4 10. Nxd4 O-O 11. Kh1 {[#]} Ne5 $146 ({Predecessor:} 11... Nb6 12. Bb3 Bd7 13. f4 Rac8 14. e5 Ne8 15. Ne4 Nxc4 16. f5 dxe5 17. fxe6 fxe6 18. Rxf8+ Bxf8 {½-½ (30) Barle,J (2360)-Tratar,M (2455) Bled 2003}) 12. Bb3 $1 Nc6 13. Nxc6 Qxc6 14. Bg5 h6 15. Bh4 Qc7 (15... b5 $11) 16. Rad1 Re8 17. Bc2 e5 18. Ba4 Rf8 19. Bxf6 Bxf6 20. Nd5 Qd8 $1 21. b4 Be6 22. c5 ({Of course not} 22. Nxf6+ Qxf6 23. Rc1 a5 $11) 22... dxc5 23. bxc5 Qa5 24. Nxf6+ gxf6 25. Bb3 Bxb3 26. axb3 Rfd8 27. Rd6 (27. Qg4+ $14 Kf8 28. Rc1) 27... Rxd6 $1 $11 {The position is equal.} 28. cxd6 {[%mdl 4096] Endgame KQR-KQR} Rd8 29. Rd1 Qb6 30. Qd3 Qxf2 31. h3 Qc5 32. Kh2 Kf8 33. Qd2 Ke8 34. b4 Qd4 {[#] Strongly threatening ...Rxd6.} 35. Qc1 $36 {[%mdl 2048] White is pushing.} Qb6 36. Qd2 Qd4 {Threatens to win with ...Rxd6.} 37. Qc2 Qb6 38. Qd2 Qd4 {[#] White must now prevent ...Rxd6.} 39. Qc1 Qb6 40. Qd2 Qd4 {Accuracy: White = 90%, Black = 91%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.39"]
[White "Zarubitski, Viachaslau"]
[Black "Kulaots, Kaido"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2432"]
[BlackElo "2510"]
[Annotator "TA"]
[PlyCount "134"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,134,33,25,44,63,63,63,61,66,67,75,72,87,77,121,76,108,108,91,75,104,25,56,25,30,-34,-35,-40,-28,-25,-39,-43,-34,-37,-30,-21,-27,-43,-19,-14,-27,-20,-24,-26,-15,-21,0,0,8,0,17,16,22,-81,-85,-103,-98,-101,-87,-79,-78,-85,-75,-81,-4,-4,-5,-5,-5,-7,0,-51,-45,-51,-52,-47,-35,-31,-35,-182,-123,-131,-87,-101,-101,-94,-102,-101,-98,-96,-77,-64,-71,-71,-14,-43,-10,-11,-8,-9,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,0]} 1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 g6 5. Nf3 Bg7 6. Na3 cxd4 7. Nb5 {And now Nc7+ would win. B06: Modern Defence.} Qd8 8. Bf4 (8. cxd4 $6 Nf6 $11) (8. Nfxd4 a6 $11) 8... Na6 9. Nbxd4 {White is slightly better.} Nf6 10. Bc4 O-O 11. O-O {[#]} Nc5 $146 ({Predecessor:} 11... Qb6 12. Qe2 e6 13. a4 Nd5 14. Be5 Qd8 15. Rfd1 Bxe5 16. Nxe5 Nac7 17. Nb5 Qe7 18. Nxc7 Nxc7 {1-0 (40) Bujnoch,R (2207)-Blazek,J (2212) Czechia 2013}) 12. Re1 a6 13. a4 Bd7 14. a5 Rc8 15. Ne5 Be8 16. Qf3 (16. Ba2 $16) 16... Nh5 $1 $11 17. Bg5 (17. Nf5 $5 {[%cal Ra1d1]} Nxf4 18. Nxg7 Kxg7 19. Qxf4 $14) 17... Qc7 18. Ng4 (18. g4 $11 Bxe5 19. gxh5) 18... e5 $15 19. Nc2 Kh8 {Hoping for ...f5.} 20. Nf6 {Strongly threatening Nd5.} e4 21. Nxe8 ({Wrong is} 21. Nxe4 $2 Bc6 $19) 21... Rcxe8 22. Qh3 Ne6 23. Bxe6 $1 Rxe6 24. f3 Re5 25. Be3 Rxa5 26. Rxa5 Qxa5 27. fxe4 Qb5 $36 {[%mdl 2048] Black fights for an advantage.} 28. Bc1 Nf6 29. Nd4 Qb6 30. e5 Nd5 31. Qd7 Nb4 32. Rf1 (32. e6 $11 fxe6 33. Be3 (33. Rxe6 Nc6 $11)) 32... Nd3 $1 $17 {[%cal Rd3c1][%mdl 64] Discovered Attack} ({But not} 32... Bxe5 $2 33. Bh6 $18) 33. Be3 Nxe5 34. Qe7 Kg8 35. Nf5 {[#]} Qd8 $1 36. Qxd8 Rxd8 37. Bg5 {[#]} f6 (37... Re8 $1 $17 38. Nxg7 Kxg7) 38. Nxg7 $11 fxg5 {[%mdl 4096] Endgame KRN-KRN} 39. Ne6 {[%mdl 64] Double Attack} Re8 40. Nxg5 Nc4 41. b3 (41. b4 $11) 41... Nd2 $1 $15 {[%cal Rd2f1]} 42. Rd1 Nxb3 43. Rd7 Nc5 44. Rc7 $1 {[%cal Rc7c5]} b6 45. Nf7 (45. Nxh7 $15 Ne4 46. h4) 45... Re1+ $19 46. Kf2 Rd1 47. Nh6+ Kf8 48. Rxh7 Ne4+ 49. Ke3 Nxc3 50. Ng4 b5 51. Ra7 Rd6 52. Ne5 Nd5+ ({Black should play} 52... b4 $17 {Threatens to win with ...Re6.} 53. Nc4 Rf6) 53. Kd4 {Black must now prevent Kc5.} Nf4+ 54. Ke4 {The position is equal.} Nxg2 55. Nd7+ Ke7 56. Nc5+ Kf6 57. Rxa6 Rxa6 58. Nxa6 $11 {KN-KN} Kg5 59. Nc7 b4 60. Kd4 Nf4 61. Kc4 Kh4 62. Kxb4 Kh3 63. Ne8 Kxh2 64. Nf6 Nh5 65. Nh7 Kg3 66. Kc4 Kf4 67. Nf8 Ke5 {White happily takes the draw. Accuracy: White = 79%, Black = 89%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.40"]
[White "Kozak, Adam"]
[Black "Buksa, Nataliya"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2523"]
[BlackElo "2403"]
[Annotator "TA"]
[PlyCount "106"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,106,17,2,13,0,0,0,12,0,0,10,2,0,41,44,50,-67,223,53,69,72,78,6,22,15,74,27,40,34,30,29,40,0,25,10,23,0,64,0,0,0,0,0,0,0,0,0,0,0,0,-3,0,0,8,8,8,0,0,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Nbd7 7. Bd3 Be7 8. Qc2 Nh5 9. Bxe7 Qxe7 10. O-O-O Nb6 11. h3 g6 12. Nf3 Be6 {D36: Queen's Gambit Declined: Exchange Variation: Main line (5 Bg5 c6 6 Qc2).} 13. Kb1 Ng7 14. g4 O-O-O 15. Na4 Nxa4 16. Qxa4 Kb8 17. Rc1 h5 18. Ne5 $36 {[%mdl 2048] And now Rc3 would win. White has good play.} hxg4 19. Rc3 {[#]} (19. hxg4 $14 Qc7 20. Qb4) 19... Bf5 $146 {[%mdl 8192] [#]} (19... Rc8 $1 $15 {stays ahead.}) ({Predecessor:} 19... Qc7 20. Rhc1 gxh3 21. Ra3 a5 22. Nxc6+ Qxc6 23. Rxc6 Bd7 24. Rb3 h2 25. Rxb7+ {1-0 (25) Sadorra,J (2572)-Hungaski,R (2471) Middleton 2013}) 20. Rhc1 $2 (20. e4 $1 $18 Bc8 21. Ra3) 20... Rc8 $14 21. hxg4 Bxd3+ 22. Rxd3 (22. Nxd3 $16 {Hoping for Ra3.} Ne6 23. Nb4) 22... Ne6 23. Rb3 {[%cal Re5c6] Strongly threatening Nxc6+.} Nd8 (23... Ka8 $1 $11 {keeps the balance.}) 24. g5 (24. Rxc6 $5 Nxc6 25. Nxc6+ Rxc6 26. Qxc6 $14) 24... Rh7 25. f4 f6 26. gxf6 Qxf6 27. Ra3 (27. a3 {feels hotter.} Ka8 28. Rg1 Rg7 29. Qb4 g5 30. Rxg5 Rxg5 31. fxg5 Qxg5 32. Qf8) 27... a6 28. Qc2 Rg7 29. Rg1 Ne6 ({Black should try} 29... Rcc7 $11) 30. Rxg6 (30. Rc3 $14) 30... Rxg6 $11 {The position is equal.} 31. Qxg6 Qxg6+ 32. Nxg6 $14 {[%mdl 4096] Endgame KRN-KRN} Rg8 33. Nh4 Rh8 34. Nf3 Rh3 35. Nd2 Ng7 36. e4 Rxa3 (36... Rh4 {keeps more tension.} 37. exd5 cxd5 38. Rf3 Nf5 39. Rf2 Kc7) 37. bxa3 dxe4 38. Nxe4 $11 {KN-KN} Ne6 39. Kc2 Nxf4 40. a4 a5 41. Nd2 Ka7 42. Nb3 b6 43. a3 Kb7 44. Kc3 Kc7 45. Nd2 Ne6 46. Kc4 Nf4 47. Kc3 Nd5+ 48. Kd3 Kd6 49. Nc4+ Ke6 50. Ne5 Ne7 51. Nc4 Nc8 52. Ne3 Nd6 53. d5+ cxd5 {Accuracy: White = 75%, Black = 83%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.41"]
[White "Makarian, Rudik"]
[Black "Sivuk, Vitaly"]
[Result "1/2-1/2"]
[ECO "A37"]
[WhiteElo "2414"]
[BlackElo "2557"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 26,59,-41,-47,-35,-30,-28,-91,-101,-122,-96,-109,-55,-48,-22,-89,-85,-87,-33,-43,-36,-36,-36,-36,-36,-38,-15,-18,4,8,12,4,123,96,90,95]} 1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2 e5 6. O-O Nge7 7. a3 a5 8. d3 d6 9. Rb1 O-O 10. Ne1 Be6 11. Nc2 d5 12. cxd5 Nxd5 13. Ne3 Nde7 14. Nc4 $1 {14.Nc4 is better than 14.Bd2.} Rb8 {A37: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3.} 15. Be3 Nd4 {[#]} 16. b4 $146 (16. a4 $11) ({Predecessor:} 16. f4 Nec6 17. Ne4 b6 18. fxe5 Nxe5 19. Bg5 f6 20. Nxe5 fxg5 21. Rxf8+ Qxf8 22. Nc4 {0-1 (52) Alvarez Pedraza,A (2445)-Abreu Delgado,A (2473) Santa Clara 2007}) 16... axb4 $17 {Black is better.} 17. axb4 b5 18. Nd2 c4 ({Black should try} 18... Nef5 $17 19. Bxd4 (19. bxc5 Nxe3 20. fxe3 Nf5 $17) 19... exd4) 19. Nde4 $15 Nef5 20. Nc5 (20. Bg5 $11 {keeps the balance.} f6 21. Bc1) 20... Nxe3 $17 21. fxe3 Bh6 (21... Nf5 $17 22. Qd2 Bh6) 22. exd4 $15 Qxd4+ {[%mdl 64] [#] Double Attack} 23. Kh1 Qxc3 24. Nxe6 fxe6 25. Rxf8+ Rxf8 26. dxc4 bxc4 27. b5 {[%cal Bb4b5,Bb5b6][%mdl 32] With the idea b6.} Qd4 28. b6 {And now b7 would win.} Qxd1+ (28... Rb8 $11) 29. Rxd1 $16 c3 {[#] White must now prevent ...c2.} 30. Be4 {Accuracy: White = 78%, Black = 59%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.24"]
[Round "6.42"]
[White "Nikitenko, Mihail"]
[Black "Stupak, Kirill"]
[Result "0-1"]
[ECO "A37"]
[WhiteElo "2440"]
[BlackElo "2518"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,98,0,0,-13,-12,-17,-10,-26,-15,-25,-23,-33,-32,-43,-24,-22,-17,-25,-20,-25,1,0,-4,-76,-14,1,62,-25,31,0,0,0,0,-66,-16,-15,-19,-112,-7,-220,-50,-46,-18,-46,-44,-36,-39,-128,-149,-146,-152,-142,-149,-152,-145,-148,-142,-323,-307,-318,-322,-301,-310,-289,-298,-462,-449,-598,-615,-597,-612,-620,-620,-618,-614,-604,-604,-627,-614,-668,-668,-672,-672,-660,-655,-1409,-1409,-1064,-1064]} 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. Nf3 e6 6. d3 Nge7 7. Bg5 {A37: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3.} h6 8. Bd2 O-O 9. Qc1 {The position is equal. is the legacy move (9.a3).} Kh7 10. Rb1 d5 11. h4 b6 12. a3 Bb7 13. b4 cxb4 14. axb4 dxc4 15. dxc4 {[#]} Rc8 $146 {White must now prevent ...Nd4.} ({Predecessor:} 15... Nd4 16. Ng5+ hxg5 17. hxg5+ Kg8 18. Bxb7 Rb8 19. Bg2 Rc8 20. Ne4 Nec6 21. c5 Ne5 22. Bc3 Nxe2 23. Kxe2 Qd3+ 24. Ke1 Nf3+ 25. Bxf3 Qxf3 26. Rh4 bxc5 27. Bxg7 {1-0 (27) Moskalenko,A (2490)-Reshetnikov,A (2492) Moscow 2016}) 16. h5 g5 17. Ne4 (17. c5 $11) 17... Kh8 (17... g4 $17 18. Nh4 f5) 18. Bc3 $11 Nf5 (18... e5 $1 $11) 19. Qb2 (19. Bxg7+ $1 $14 Nxg7 20. Qc3) 19... Bxc3+ (19... e5 $11) 20. Qxc3+ f6 21. g4 Nd6 22. Ned2 (22. Nxd6 $11 Qxd6 23. c5) 22... a5 23. bxa5 Nxa5 {[%cal Bc6a5,Ba5c4,Bc4d2][%mdl 32]} 24. Qd3 (24. O-O $11 {remains equal.}) 24... Rg8 ({Black should try} 24... e5 $1 $17 {[%cal Re5e4] And now ...e4 would win.} 25. Qg6 Rc7 26. Rxb6 Rg8) 25. Rc1 $2 (25. O-O $1 $11 {and White has nothing to worry.}) 25... b5 $2 ({Black should play} 25... e5 $19 26. e4 Nxe4 27. Nxe5 Qxd3 28. Nxd3 Rge8 29. Bxe4 Bxe4 30. Nxe4 Rxe4+ {[%mdl 64] Double Attack} 31. Kf1 Nxc4) 26. c5 $15 Ndc4 {Hoping for ...Nxd2.} 27. Nxc4 Nxc4 28. O-O Bxf3 29. Bxf3 {Black keeps a firm grip on the game.} ({Better is} 29. Qxd8 $15 Rgxd8 30. Bxf3) 29... Qxd3 $1 $17 ({Don't do} 29... Rxc5 30. Rfd1 $15) 30. exd3 Nd2 31. Bb7 Rc7 $36 {[%mdl 2048] Keeping White busy.} 32. Rfd1 Nb3 {[%mdl 64] Double Attack} 33. Rb1 {[#]} Nd4 $1 34. Rb4 $2 {[#]} (34. c6 $17) 34... Ne2+ $1 $19 35. Kf1 Nc3 36. Re1 Rxb7 37. Rxe6 Kg7 38. c6 (38. Rd4 $142) 38... Rc7 {Black is clearly winning.} 39. Rb3 Kf7 40. Rd6 Ke7 41. Rd7+ Rxd7 42. cxd7 {[%mdl 4096] Endgame KRN-KR} Nd5 43. Rxb5 Nf4 44. Rb3 Ra8 {( -> ...Ra1+)} 45. Kg1 Rd8 46. Kh2 Rxd7 47. Rb8 Rxd3 48. Rh8 {[#]} f5 $1 49. Rh7+ (49. gxf5 Rh3+) 49... Kf6 {Accuracy: White = 47%, Black = 71%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.1"]
[White "Mamedov, Rauf"]
[Black "Sjugirov, Sanan"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2643"]
[BlackElo "2674"]
[Annotator "TA"]
[PlyCount "113"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,113,0,7,7,5,7,8,-16,-8,-35,33,28,31,19,29,22,23,19,70,54,70,64,54,66,68,56,79,69,72,82,73,69,75,36,57,55,54,53,68,72,67,64,72,64,77,71,75,73,67,22,22,3,22,16,17,0,22,0,14,15,15,16,19,0,14,0,0,0,0,0,0,0,0,0,10,4,23,23,17,3,3,0,3,3,3,3,8,8,8,8,8,8,8,8,8,3,8,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 d5 7. Bb5 Ne4 8. cxd4 Bb6 9. Nc3 O-O 10. Be3 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} Bg4 11. h3 Bh5 12. Qa4 Ne7 13. Bd3 Bg6 (13... Nxc3 $15 14. bxc3 Bxf3 15. gxf3 Qc8) 14. Qc2 $14 Nxc3 15. bxc3 Qd7 {[#]} 16. O-O $146 ({Predecessor:} 16. Nh4 Bxd3 17. Qxd3 f6 18. exf6 Rxf6 19. O-O h6 20. g4 Raf8 21. f4 Nc8 22. f5 {1-0 (49) Moe,M (2233)-Matthiesen,M (2330) Ballerup 2018}) 16... Nf5 17. Rae1 {[%cal Ba1e1,Be1e3,Be3d3][%mdl 32]} (17. a4 {keeps more tension.} c5 18. Qd2 Rac8 19. a5 cxd4 20. cxd4 Nxe3 21. Qxe3 Bxd3 22. Qxd3 Bd8 23. Rfb1) 17... c5 (17... Rac8 $11) 18. dxc5 Nxe3 19. Rxe3 Bxc5 20. Bxg6 hxg6 21. Rd3 Qc6 22. Qb3 Rfd8 23. Rfd1 Qb6 24. R1d2 Rd7 25. Qxb6 (25. Qa4 {feels hotter.} Rad8 26. Qh4 Be7 27. Qg3 Bc5 28. Rd1) 25... axb6 26. Rxd5 Rxd5 27. Rxd5 $16 {[%mdl 4096] Endgame KRB-KRN} Kf8 28. Rd2 Ra4 29. Kf1 Rc4 30. Rc2 Re4 31. g3 Ke7 32. h4 Ke8 33. c4 Ke7 34. Kg2 Ke8 35. Kg1 Kf8 36. Kf1 Ke7 37. Kg2 Ke8 38. Kh3 Ke7 39. Kh2 Kf8 40. Kh3 Ke7 41. a4 Ke8 42. Kg2 Kf8 43. Kf1 Ke7 44. Ne1 Rxe5 45. Nd3 Rf5 46. a5 Bd4 47. axb6 Kd6 $1 48. Ra2 {The position is equal.} Bxb6 49. Ra8 Ra5 50. c5+ Ke7 51. Rc8 Bd8 {aiming for ...Kd7.} 52. Ne5 f6 $132 {[%mdl 2048] Black is not holding back} 53. c6 ({Not} 53. Nxg6+ $2 Kd7 $19) 53... bxc6 54. Nxc6+ {[%mdl 64] [#] Double Attack} Kd7 55. Rxd8+ Kxc6 56. Ke2 g5 57. hxg5 {Accuracy: White = 95%, Black = 94%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.2"]
[White "Yilmaz, Mustafa"]
[Black "Petrosyan, Manuel"]
[Result "1/2-1/2"]
[ECO "D38"]
[WhiteElo "2607"]
[BlackElo "2590"]
[Annotator "TA"]
[PlyCount "37"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,37,16,20,-1,12,8,24,20,20,20,16,15,29,24,22,21,11,30,50,0,0,0,0,0,0,0,0,-3,-3,0]} 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Bb4 5. cxd5 exd5 6. Bf4 {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} O-O {6...Ne4 is the modern continuation. Played by Viswanathan Anand in January 2020.} 7. e3 c5 8. dxc5 {White has an edge.} Ne4 9. Rc1 Qa5 {[%cal Re4c3]} 10. Bd3 Nd7 {[%cal Bb8d7,Bd7c5,Bc5d3][%mdl 32]} 11. O-O Bxc3 12. bxc3 {Black must now prevent c4.} Ndxc5 13. Bb1 Be6 {[#]} 14. Qe1 $146 ({Predecessor:} 14. Qd4 Rfd8 15. Qb4 Qa6 16. Nd4 Rac8 17. Rfd1 Nd6 18. Nb3 Qb6 19. Bxd6 Rxd6 20. Qh4 {1-0 (69) Guo,Q (2435)-Dauletova,G (2269) Abu Dhabi 2016}) 14... Qa6 $1 {The position is equal.} 15. Nd4 {Threatens to win with f3.} Nd3 $1 {[%cal Rd3e1]} 16. Bxd3 $1 Qxd3 17. f3 Nc5 18. Qg3 Qg6 19. Qxg6 {Not much happened in this game. Accuracy: White = 92%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.3"]
[White "Maghsoodloo, Parham"]
[Black "Aleksandrov, Aleksej"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2674"]
[BlackElo "2592"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,83,17,20,10,14,11,11,12,12,12,19,17,20,16,20,16,19,19,22,21,22,19,20,16,15,18,27,3,3,8,6,3,4,5,3,14,25,19,27,0,0,0,17,0,8,12,39,0,-7,-10,23,-107,-83,-152,-106,-141,-78,-89,0,0,0,-34,-34,-53,-61,-54,-62,-102,-2,-6,8,8,8,0]} 1. Nf3 Nf6 2. g3 b5 3. Bg2 Bb7 4. O-O e6 5. d3 c5 6. e4 d6 7. e5 {A05: Réti Opening: 1 Nf3 Nf6.} dxe5 8. a4 b4 9. Nxe5 Bxg2 10. Kxg2 Qd5+ 11. Qf3 Qxf3+ 12. Kxf3 {[#]} Be7 $146 ({Predecessor:} 12... Nfd7 13. Nxd7 Nxd7 14. Bf4 Be7 15. Nd2 O-O 16. a5 Rfc8 17. Nc4 f6 18. Kg2 Rc6 {1-0 (66) Niermann,M (2280)-Erkay,A Germany 1996}) 13. Be3 Nfd7 14. Nc4 Nc6 15. Nbd2 O-O 16. Ke2 Rfd8 17. a5 Nde5 18. a6 Rd5 19. Nb3 Rc8 20. f4 Ng4 21. Bg1 Rh5 22. h4 Rd5 23. c3 h5 24. Nba5 Nxa5 25. Nxa5 bxc3 26. bxc3 Nh6 27. Nb7 Nf5 $36 {[%mdl 2048] Black is more active.} 28. Bf2 Bf6 29. Rfc1 e5 30. c4 Nd4+ 31. Bxd4 (31. Kf1 $11 {keeps the balance.} Rd7 32. fxe5 Bxe5 33. Ra5) 31... Rxd4 $17 32. Ra5 (32. f5 $142) 32... exf4 33. Nxc5 Bd8 ({Black should try} 33... fxg3 34. Ne4 Re8) 34. Nb3 Bxa5 ({Much weaker is} 34... fxg3 $6 35. Nxd4 Bxa5 36. c5 $11) (34... Rd6 $17 35. Rxh5 fxg3) 35. Nxd4 $11 fxg3 $17 {[%mdl 4096] Endgame KRB-KRN} 36. Nb5 Rc6 37. c5 g2 {[#] Strongly threatening ...Rxc5!} 38. d4 Rxa6 {...Be1! is the strong threat.} 39. Rg1 Rg6 ({Black should play} 39... Re6+ $17 40. Kf3 a6) 40. Nxa7 $11 {The position is equal.} Kf8 41. Kf3 Bd8 42. d5 {Accuracy: White = 73%, Black = 83%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.4"]
[White "Sarana, Alexey"]
[Black "Idani, Pouya"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2656"]
[BlackElo "2577"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,56,20,4,7,25,16,18,32,4,4,5,15,10,14,22,24,28,46,39,41,39,45,45,43,12,25,9,14,18,20,14,52,-22,-21,-20,-19,-22,-9,-18,-8,-16,-21,-18,-5]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nf3 Qc7 8. Be2 Be7 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} 9. a4 {is now debated instead of 9.0-0.} h6 10. O-O Be6 11. a5 Qc6 12. Nd2 Nbd7 13. Bf3 O-O 14. Qe2 Rac8 15. Rfd1 Rfe8 16. Nf1 {[#]} Nf8 $146 ({Predecessor:} 16... Bf8 17. Ng3 g6 18. Qd2 Kh7 19. h3 Qc7 20. Qe1 Qc6 21. Nf1 Qc7 22. Nh2 Ra8 {1-0 (63) Rambaldi,F (2544)-Brunello,M (2361) Bergamo 2016}) 17. Ng3 N8d7 18. Rd2 Bf8 19. h4 Qc7 20. Qd1 b5 21. axb6 Nxb6 {With the idea ...Nc4.} 22. b3 ({Reject} 22. Rxa6 Nc4 $17) 22... Qb7 23. Na4 (23. Nd5 $14 Nbxd5 24. exd5) 23... Nxa4 $11 {The position is equal.} 24. Rxa4 Bd7 25. Ra2 Bc6 26. Qe2 Nxe4 27. Nxe4 Bxe4 28. Bxe4 Qxe4 {Accuracy: White = 79%, Black = 94%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.5"]
[White "Erigaisi Arjun"]
[Black "Adhiban, B.."]
[Result "0-1"]
[ECO "E04"]
[WhiteElo "2563"]
[BlackElo "2654"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,120,26,47,6,6,19,10,11,11,0,0,0,0,0,0,0,0,0,0,-9,0,0,20,-2,0,-40,-40,-52,-54,-50,-31,-58,-53,-41,-13,-43,0,0,0,0,0,0,-23,-110,-98,-164,-164,-164,-164,-164,-164,-164,-164,-188,-164,-164,-164,-201,-156,-215,-215,-215,-206,-208,-207,-251,-258,-258,-251,-326,-334,-355,-251,-365,-365,-651,-650,-618,-586,-637,-662,-647,-620,-592,-496,-1481,-1454,-1571,-1406,-1852,-1829,-1510,-587,-29977,-5691,-5077,-4133,-29973,-29976,-29976,-29977,-29977,-29978,-29977,-29978,-29979,-29980,-29980,-29979]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 a6 6. O-O Nc6 7. e3 Rb8 8. Qe2 {E04: Open Catalan: 5 Nf3.} b5 9. b3 {9.b3 scores better than 9.Rd1.} cxb3 10. axb3 {The position is equal.} Be7 11. Bb2 O-O 12. Nbd2 Bb7 13. Rfc1 Nb4 14. Ne5 Bxg2 15. Kxg2 Rb6 {[#]} 16. Kg1 $146 ({Predecessor:} 16. Qf3 Nd7 17. Nc6 Nxc6 18. Rxc6 Rxc6 19. Qxc6 Nb8 20. Qc2 c5 21. dxc5 Qd5+ 22. Nf3 Qxc5 23. Qxc5 Bxc5 {1-0 (53) Theodorou,N (2513)-Baron,T (2530) Rio Achaea 2018}) 16... Nd7 17. Ne4 f6 18. Nf3 e5 19. dxe5 fxe5 20. Rd1 Qc8 21. Rac1 (21. Nxe5 Nxe5 22. Bxe5 Qf5 $17) 21... c5 22. Ne1 Nf6 23. Nxf6+ Bxf6 24. Ba3 Qe6 25. Rxc5 Qxb3 26. Bxb4 $1 Qxb4 27. Nd3 Qa3 28. Qc2 (28. Rd5 $11) 28... Rd6 $17 {Black converts the advantage convincingly.} 29. Rc3 (29. Rc6 $17) 29... Qa4 $19 30. Qxa4 bxa4 31. e4 Rfd8 {Strongly threatening ...Be7.} 32. Kf1 Rd4 {Hoping for ...Be7.} 33. f3 Be7 {[#] And now ...Bb4 would win.} 34. Ke2 Bb4 $36 {[%mdl 2048] White is under strong pressure.} 35. Rc2 a5 36. Nf2 (36. h4 $17) 36... Rxd1 37. Nxd1 {[%mdl 4096] Endgame KRB-KRN} a3 {[#] White must now prevent ...Rd2+!} 38. Nc3 Bc5 39. Nd5 Bd4 40. Ra2 Bb2 41. Kd3 Kf7 42. Kc4 Rc8+ 43. Kb5 (43. Kd3 $142) 43... Rc2 44. Nb6 $2 (44. h4) 44... Rxh2 45. Nc4 Rh3 46. Nxa3 Bxa3 47. Rxa3 Rxg3 {KR-KR} 48. Kc4 h5 49. Kd5 (49. Rxa5 $142 Rxf3 50. Rxe5) 49... h4 50. Rxa5 h3 51. Ra8 Rxf3 52. Kxe5 g5 53. Kd5 g4 (53... h2 $142 54. Rh8 Rf2 55. e5 Kg7 56. Rh5 g4 57. Rh4 g3 58. Ke4 g2 59. Rxh2 g1=Q 60. Rxf2 Qxf2 61. Kd3 Kf7 62. Kc3 Ke6 63. Kc4 Kxe5 64. Kd3 Qd4+ 65. Kc2 Kd5 66. Kc1 Qf2 67. Kd1 Kd4 68. Kc1 Kc3 69. Kd1 Qf1#) 54. Rh8 Rf1 55. e5 Rd1+ {Black mates.} 56. Ke4 g3 57. Rh7+ Ke8 58. Rh8+ Kd7 59. Rh7+ Kc6 60. Rh6+ Kc5 {Accuracy: White = 52%, Black = 90%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.6"]
[White "Savchenko, Boris"]
[Black "Jumabayev, Rinat"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "2573"]
[BlackElo "2646"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,62,39,25,29,31,0,0,0,0,0,-7,-47,-47,-47,-47,-47,-52,-53,-57,-58,-54,-53,-41,-82,-61,-83,-56,-77,-77,-130,-144,-536,-548,-529,-542,-587,-571,-585,-575,-573,-547,-521,-511,-595,-593,-583,-580,-779,-772,-760,-763]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. a4 d5 7. exd5 Nxd5 8. Re1 {C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack.} Bg4 9. h3 Bxf3 10. Qxf3 {The position is equal.} Nb6 11. Ba2 Nxa4 {[#]} 12. Nc3 $146 (12. Nd2 {with more complications.} Nb6 13. Qg3 Bh4 14. Qg4 Bg5 15. Ne4) ({Predecessor:} 12. c3 Nb6 13. b4 Bf6 14. Nd2 Nxb4 15. cxb4 e4 16. Nxe4 Bxa1 17. Bg5 Qd4 18. Rb1 {0-1 (50) Boschetti,C (2140)-Mouflih,C (2023) Robecchetto 2014}) 12... Nd4 {[%cal Bc6d4,Bd4b5,Bb5d6][%mdl 32]} 13. Qd1 Nxc3 14. bxc3 Nb5 15. Bb2 Bf6 $1 16. Rb1 Rb8 17. Bc4 Nd6 18. Ba3 Re8 19. Ba2 Qd7 20. Qg4 Qc6 21. d4 (21. Bb3 $142) 21... exd4 $17 {Hoping for ...Rxe1+.} 22. cxd4 $2 {[%mdl 8192]} (22. Bxd6 $17 Rxe1+ 23. Rxe1 Qxd6 24. cxd4) 22... Rxe1+ $19 {Black is clearly winning.} 23. Rxe1 Qc3 {[%mdl 64] [#] Double Attack} 24. Re3 Qa1+ {[%mdl 64] Double Attack} 25. Kh2 Qxa2 26. Qd7 Bxd4 27. Qxc7 {[#]} Ra8 $1 28. Rd3 Be5+ 29. g3 Qc4 30. Qd7 Qxc2 31. Rf3 Qc6 {White got outplayed after the opening. Accuracy: White = 50%, Black = 93%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.7"]
[White "Aravindh, Chithambaram VR."]
[Black "Bharath Subramaniyam H"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2630"]
[BlackElo "2402"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,63,17,21,22,39,12,21,0,24,0,0,0,0,0,56,78,135,145,147,136,171,118,128,135,190,179,258,272,336,231,305,326,302,340,328,316,342,337,575,599,599,588,583,576,851,834,802,727,715,714]} 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 O-O 7. Bd3 Re8 8. Qc2 h6 9. Bh4 {D35: Queen's Gambit Declined: Exchange Variation.} c5 10. Nge2 Nc6 11. O-O {The position is equal.} c4 {[#] Threatens to win with ...Nb4.} (11... g5 $5 12. Bg3 $8 c4 $11) 12. Bf5 Nb4 13. Qb1 Bxf5 14. Qxf5 g6 {[#]} (14... g5 $1 $11 15. Bg3 Qc8) 15. Qh3 $146 ({Predecessor:} 15. Qf3 Ne4 16. Bxe7 Rxe7 17. Nf4 Nd2 18. Qh3 Nxf1 19. Rxf1 g5 20. Nh5 {½-½ (20) Bok,B (2640)-Buhmann,R (2589) Berlin 2018}) 15... Kg7 (15... Nh5 $142) 16. Bxf6+ $16 Bxf6 17. Qf3 Re6 18. Nf4 (18. a3 $18 Nc6 19. Nxd5) 18... Rb6 19. Rab1 Rd6 (19... Rc8 $16 20. Nfxd5 (20. Ncxd5 Nxd5 21. Nxd5 Ra6 $16) 20... Nxd5) 20. a3 $18 {[%cal Ba2a3,Ba3a4][%mdl 32]} Nd3 (20... Nc6 $142 21. Nfxd5 Rb8) 21. Nfxd5 ({Not} 21. Ncxd5 Nxf4 22. Nxf4 b5 $16) 21... Rb8 22. a4 a6 23. b3 b5 24. bxc4 bxc4 25. Rxb8 Qxb8 26. Ne4 $1 {[%csl LRd6,LRf6][%mdl 64] [#] Double Attack} Rxd5 $2 (26... Bd8) 27. Qxf6+ {[%mdl 64] Double Attack. White is clearly winning.} Kg8 28. Qxa6 {aiming for Nf6+.} Nb4 29. Qxc4 {Strongly threatening Nf6+.} Ra5 30. Rb1 Rxa4 31. Nc3 Ra3 32. Nd5 {Accuracy: White = 74%, Black = 43%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.8"]
[White "Paravyan, David"]
[Black "Vaibhav, Suri"]
[Result "1-0"]
[ECO "B94"]
[WhiteElo "2629"]
[BlackElo "2591"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,75,13,8,13,15,16,0,6,0,0,0,61,45,34,59,95,95,98,99,179,172,268,268,314,300,328,332,314,326,328,308,322,318,326,329,312,252,342,335,339,287,460,464,552,524,1214,1120,839,807,3352,2435,4829,4821,29936,12584,29968,29970,29970,29971,29971,29972,29970,29971,29963,29965]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Bc4 Qb6 {7...Qb6 scores better than 7...Qa5. B94: Sicilian Najdorf: 6 Bg5 Nbd7.} 8. Bb3 e6 9. f4 Be7 $1 {The position is equal.} 10. f5 Nc5 11. Qf3 Ncxe4 (11... Nxb3 $11 12. Nxb3 Bd7) 12. Nxe4 $14 Qxd4 {[%mdl 64] Double Attack} 13. Bxf6 $1 gxf6 14. c3 $36 {[%mdl 2048] [#] White is on the roll.} Qe5 $146 {[#]} ({Predecessor:} 14... Qb6 15. O-O-O d5 16. fxe6 dxe4 17. exf7+ Kf8 18. Qxe4 f5 19. Qf4 Qg6 20. Rhe1 Be6 21. Qe5 Qg5+ 22. Kb1 Bxb3 23. Qxh8+ Kxf7 24. Qxh7+ Kf8 25. axb3 {1-0 (25) Gashimov,V (2717)-Volokitin,A (2672) Poikovsky 2008}) 15. O-O-O $1 Bd7 (15... exf5 $2 {[#]} 16. Nxd6+ $1 {[%mdl 512]} Bxd6 17. Rhe1 $18) (15... Qxf5 $16 16. Qxf5 (16. Nxd6+ Bxd6 17. Qxf5 exf5 $16) 16... exf5 17. Nxd6+ Bxd6 18. Rxd6 Be6) 16. fxe6 $18 Bc6 (16... fxe6 {keeps fighting.} 17. Rhe1 O-O 18. Nxd6 Bc6 19. Qg4+ (19. Rxe5 Bxf3 20. Bxe6+ Kh8 $16) (19. Bxe6+ Kh8 $18) 19... Qg5+ 20. Qxg5+ fxg5 21. Nxb7 (21. Rxe6 Bxd6 22. Rexd6+ Kh8 $16) (21. Bxe6+ Kh8 $16) 21... Rf6 22. Bxe6+ Kf8) 17. exf7+ Kd8 18. Rhe1 {Strongly threatening Qd3.} f5 {[%cal Rc6e4]} 19. Nxd6 $1 {[%mdl 64] Double Attack} Bg5+ 20. Kc2 Bxf3 21. Rxe5 Bxd1+ 22. Kxd1 Kc7 {aiming for ...Rad8.} 23. Nxf5 Rad8+ 24. Ke2 Kb8 25. h4 Bc1 26. Ng7 Bxb2 $2 (26... Rhf8 {was necessary.} 27. g4 Rc8) 27. Re8 Ba3 28. g4 h6 29. g5 hxg5 30. hxg5 Ka7 31. Rxd8 Rxd8 {[%mdl 4096] Endgame KRB-KBN} 32. Ne6 Rd6 33. g6 Rxe6+ 34. Bxe6 {White mates.} Bf8 35. Kd3 Kb8 36. Ke4 Kc7 37. Kf5 Bg7 38. Bd5 {Black did not feel at home in the position after the opening. Accuracy: White = 100%, Black = 41%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.9"]
[White "Zhou, Jianchao"]
[Black "Antipov, Mikhail Al."]
[Result "1/2-1/2"]
[ECO "A36"]
[WhiteElo "2622"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "35"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,35,6,6,10,10,13,18,8,12,3,7,7,36,29,39,39,39,32,44,14,48,58,63,17,20,14,12,-15]} 1. g3 g6 2. Bg2 Bg7 3. c4 c5 4. Nc3 Nc6 5. d3 a6 6. e3 {A36: Symmetrical English vs ...g6: 4 Bg2 Bg7.} b5 7. Nge2 Rb8 8. O-O Nf6 9. b3 O-O 10. Bb2 bxc4 11. dxc4 Bb7 12. Qd2 {[#]} Nb4 $146 ({Predecessor:} 12... d6 13. Nd5 Nxd5 14. cxd5 Ne5 15. f4 Nd7 16. Bxg7 Kxg7 17. e4 Qc7 18. Rac1 a5 {1-0 (45) Gascon del Nogal,J (2291)-Guerrero Vargas,A (2279) Lecheria 2014}) 13. e4 d6 14. Nd5 Nbxd5 15. exd5 Bc8 16. Nc3 Bd7 17. Rae1 a5 18. Ne4 {Accuracy: White = 72%, Black = 85%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.10"]
[White "Suleymanli, Aydin"]
[Black "Smirin, Ilia"]
[Result "1-0"]
[ECO "A41"]
[WhiteElo "2474"]
[BlackElo "2615"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,65,0,27,8,47,22,15,17,29,-8,0,-8,50,41,54,34,33,29,50,43,32,48,83,96,83,77,511,491,502,487,514,516,516,516,508,505,427,488,504,332,345,0,509,480,465,468,481,483,475,459,1845,1767,1355,1083]} 1. d4 d6 2. c4 e5 3. e3 Nd7 4. Nc3 g6 5. g3 Bg7 6. Bg2 Ne7 7. Nge2 O-O 8. O-O {A21: English Opening: 1...e5 2 Nc3.} f5 9. dxe5 dxe5 10. e4 {The position is equal.} c6 {[#]} 11. Be3 $146 ({Predecessor:} 11. Bg5 h6 12. Bxe7 Qxe7 13. b3 f4 14. gxf4 exf4 15. f3 Ne5 16. Qc2 g5 17. Rad1 g4 18. Qd2 gxf3 19. Bxf3 Bh3 20. Rf2 Nxf3+ {0-1 (20) Zubia Aramburu,M (1726)-Alonso Bouza,J (2385) San Sebastian 2017}) 11... Qc7 {With the idea ...f4.} 12. Qd2 Nb6 ({Black should try} 12... Nf6 $11) 13. b3 $1 $36 {[%mdl 2048] White has good play.} f4 14. gxf4 exf4 15. Nxf4 Bxc3 16. Qxc3 {Strongly threatening Bc1.} Rxf4 17. Rad1 Be6 {[#]} 18. c5 $1 {[%mdl 1024] Hoping for Rd6. White has strong compensation. White now steadily converts the win.} Rh4 {[%csl Gh4][%cal Rc7h2]} 19. Rd6 Nd7 $2 {[%mdl 8192]} (19... Nec8 $16) 20. f4 $18 Bh3 21. Qc4+ Kf8 {Black wants to play ...Rg4.} 22. Bxh3 Rxh3 23. Qe6 {[%mdl 64] [#] Double Attack} Rxe3 24. Rxd7 Qxd7 25. Qxd7 Rxe4 26. Qd3 Re6 27. Qd7 (27. Qh3 $142 Nf5 28. Qxh7) 27... Re4 $1 28. f5 {White is clearly winning.} gxf5 29. Rxf5+ Kg7 30. Rg5+ Kf6 31. Rg3 {aiming for Qd6+.} b5 (31... Nf5 $142 32. Rf3 Rg8+ 33. Kf2 Re5 34. Qxb7 Rxc5 35. Qxh7 Rg4) 32. Qd6+ Kf7 33. Qh6 {Accuracy: White = 84%, Black = 63%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.11"]
[White "Sargissian, Gabriel"]
[Black "Sychev, Klementy"]
[Result "1/2-1/2"]
[ECO "E46"]
[WhiteElo "2689"]
[BlackElo "2563"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,101,0,21,12,5,10,10,8,10,13,8,10,0,0,0,0,0,0,6,6,8,1,24,20,33,27,35,20,23,0,8,0,0,0,0,0,0,0,0,0,0,0,22,18,30,0,0,0,0,0,83,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 b6 6. Nf3 Bb7 7. Bd3 d6 8. a3 {E21: Nimzo-Indian: 4 Nf3.} Bxc3 $1 9. Bxc3 Ne4 10. Bxe4 Bxe4 11. O-O Nd7 12. Nd2 Bb7 13. e4 f5 14. Qe2 fxe4 15. Nxe4 Qh4 16. f3 Rae8 {[#]} 17. Rfe1 $146 ({Predecessor:} 17. Be1 Qh5 18. Ng3 Qg6 19. Rc1 e5 20. d5 Nc5 21. Rc3 c6 22. b4 Nd7 23. dxc6 Bxc6 {0-1 (40) Degtiarev,E (2424)-Bindrich,F (2583) Germany 2015}) 17... Rf5 18. Qf2 Qh6 19. Ng3 Rf7 20. a4 Nf6 {[#] Hoping for ...Ng4!} 21. Qd2 Qg6 22. d5 e5 23. f4 exf4 24. Qxf4 Ref8 25. Bxf6 Rxf6 26. Qe4 Qh6 27. Rf1 Qg6 28. Qxg6 Rxg6 29. Nf5 {[#] Intending Ne7+ and mate.} Rgf6 30. Nd4 Rxf1+ 31. Rxf1 Rxf1+ 32. Kxf1 $11 {[%mdl 4096] Endgame KB-KN} Bc8 $1 {The position is equal.} 33. b4 Bd7 34. a5 Kf7 35. a6 Kf6 {Strongly threatening ...Ke5.} 36. Ke2 Ke5 37. Ke3 b5 38. Nf3+ Kf6 39. Kd4 g5 40. c5 Bc8 41. Nd2 h6 42. Ne4+ Ke7 43. c6 Bxa6 44. Nc3 Kf6 45. Ke4 Kg6 46. g4 Kf6 47. h3 Kg6 48. Kd4 Kf7 49. Ke4 Kg6 50. Kd4 Kf7 51. Ke4 {Accuracy: White = 97%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.12"]
[White "Rakhmanov, Aleksandr"]
[Black "Cordova, Emilio"]
[Result "1-0"]
[ECO "A36"]
[WhiteElo "2645"]
[BlackElo "2593"]
[Annotator "TA"]
[PlyCount "125"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,125,27,12,26,0,15,-14,7,-16,14,0,-2,0,0,0,0,-14,0,-8,-6,-12,0,0,16,11,11,12,9,0,0,0,0,0,0,0,28,12,16,0,0,0,26,26,37,47,67,64,64,84,91,82,90,20,193,199,193,190,177,85,96,95,78,83,198,222,289,36,299,308,279,299,260,285,290,275,397,368,366,312,487,437,527,528,508,487,423,0,496,479,849,878,1020,1006,1672,650,935,934,871,826,6357,6350,6350,6350,5043,4960]} 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. b3 d6 6. Bb2 a6 7. d3 e5 8. e3 Nge7 9. Nge2 Rb8 10. Qd2 b5 11. Nd5 O-O 12. O-O {[#]} a5 $146 {A36: Symmetrical English vs ...g6: 4 Bg2 Bg7.} ({Predecessor:} 12... Be6 13. Rae1 Qd7 14. f4 f5 15. Nec3 Kh8 16. Nxe7 Nxe7 17. Nd5 Rbe8 18. Qa5 Nc6 19. Qd2 Ne7 20. Kh1 Nxd5 21. cxd5 {0-1 (47) Topalov,V (2740)-Wei,Y (2736) Abidjan 2019}) 13. Rab1 Ba6 14. Rfc1 h5 {The position is equal.} 15. Ba1 (15. Ndc3 {feels hotter.} b4 16. Ne4 Bh6 17. f4 f5 18. Nf2) 15... Kh7 (15... b4 {is interesting.} 16. f4 Bc8 17. Bb2 Bd7 18. Qc2 Qc8) 16. Nec3 Nxd5 17. Bxd5 Ne7 18. Bg2 b4 19. Ne4 Nf5 20. a3 Bb7 21. Bb2 Qe7 22. Ra1 Bh6 23. Qe2 Rfc8 24. axb4 axb4 25. Ra7 Rc7 26. Rca1 Ng7 27. f4 Nf5 28. Bh3 {Black must now prevent Bxf5.} f6 29. Bg2 Bg7 30. Qf2 Nh6 31. h3 Kh8 (31... Re8 {with more complications.} 32. Re1 Bxe4 33. Rxc7 Qxc7 34. dxe4 exf4 35. exf4 f5) 32. d4 $36 {[%mdl 2048] White has the initiative.} exd4 33. exd4 Bxe4 34. Rxc7 {[%mdl 64] Overworked Piece} Qxc7 35. Bxe4 f5 36. Bd5 Re8 37. dxc5 (37. Ra6 $16) 37... Qxc5 $2 (37... dxc5 $11 38. Bxg7+ Qxg7) 38. Bxg7+ $18 Kxg7 39. Ra7+ Kf8 40. Qxc5 (40. Ra6 $18 {has better winning chances. aiming for Qxc5.} Kg7 41. Kg2) 40... dxc5 {[%mdl 4096] Endgame KRB-KRN} 41. Kf2 Rc8 42. Ke3 Ng8 (42... Re8+ $16 {was necessary.} 43. Kf2 Rc8) 43. Be6 $1 {[%cal Re6c8]} Rd8 44. Rf7+ Ke8 {[#]} 45. Rg7 $1 {[%cal Rg7g8]} Ne7 {[#]} 46. Rh7 $1 {[%cal Rh7h8] And now Rh8+ would win.} Nc6 {Black wants to play ...Rd6.} 47. Bf7+ {[%mdl 64] Double Attack} Kf8 48. Bxg6 {[%mdl 64] Double Attack} Rd1 (48... Nd4 $142 49. Rxh5 Nc2+ 50. Ke2 Nd4+ 51. Kf2 Ke7 52. Bxf5 Nxb3) 49. Rf7+ Kg8 {intending ...Nd4.} 50. Rxf5 h4 (50... Ne7 {might work better.} 51. Rg5 (51. Rxc5 Nxg6 52. Rb5 Rc1 $11) 51... Nxg6 52. Rxg6+ Kf7) 51. Rxc5 Ne7 52. Be4 Re1+ 53. Kd4 Rd1+ 54. Ke3 Re1+ $1 55. Kf3 {White is clearly winning.} Rc1 (55... hxg3 $142 56. Rg5+ Kf7) 56. gxh4 Rc3+ 57. Kg4 Rxb3 58. Rb5 Kg7 59. Rb7 {Hoping for h5.} Kf6 60. Rb6+ Kg7 61. f5 Ng8 62. Rg6+ Kf8 63. f6 {Accuracy: White = 85%, Black = 63%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.13"]
[White "Svane, Rasmus"]
[Black "Abdusattorov, Nodirbek"]
[Result "1-0"]
[ECO "E17"]
[WhiteElo "2608"]
[BlackElo "2644"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,81,23,25,33,6,25,6,33,33,39,20,48,37,37,42,95,116,100,37,40,37,78,98,91,96,94,102,110,109,101,101,133,135,221,234,219,228,244,239,237,232,270,260,407,226,341,343,329,323,306,324,556,539,616,708,12840,12840,12848,12848,12849,12849,12850,12850,12850,27999,27999,27999,27999,27999]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Re1 $1 {[%mdl 4] now scores much better than the old 7.Nc3. Played by Wesley So in October 2019.} Na6 8. Nc3 Ne4 {E18: Queen's Indian: Old Main Line (4 g3 Bb7 5 Bg2 Be7 6 0-0 0-0 7 Nc3).} 9. Bf4 Qc8 10. h4 {[#]} f5 $146 {The position is equal.} ({Predecessor:} 10... d6 11. Qc2 Nb4 12. Qb3 c5 13. d5 exd5 14. Nxd5 Nxd5 15. cxd5 Re8 16. Rad1 h6 {1-0 (32) Stepanov,V (2263)-Walther,J (2193) ICCF email 2018}) 11. Nxe4 Bxe4 12. Bh3 c5 13. dxc5 bxc5 14. Qd2 d6 (14... d5 $14) 15. Rad1 $16 Rd8 16. h5 ({Better is} 16. Ng5 $16) 16... Nb4 $14 17. h6 Nc2 18. Rf1 {White leaves nothing to chance now.} Bxf3 19. Qxc2 ({Of course not} 19. exf3 $6 Nd4 $11) 19... Be4 20. Qc1 $40 {[%mdl 128] Black is in trouble.} Qb7 21. hxg7 Bf6 22. Bxd6 Qxb2 23. Qh6 {Threatens to win with Be7!} ({Don't do} 23. Bxc5 Rxd1 24. Qxd1 (24. Rxd1 Qxe2 25. Bg2 Bg5 $14) 24... Rd8 $14) 23... Bxg7 (23... Re8 $16) 24. Qxe6+ $18 {[%mdl 64] [#] Double Attack} Kh8 25. Bxf5 Re8 26. Qf7 Bxf5 27. Qxf5 Qxe2 28. Qxc5 Qxa2 (28... Rac8 $142) 29. Bc7 (29. Rfe1 $142) 29... Qa4 (29... Qe2 {was worth a try.} 30. Rd7 Re4) 30. Rfe1 Rac8 31. Rxe8+ Qxe8 32. Qxa7 Qe2 $2 (32... Qf7 {might work better.} 33. c5 Kg8) 33. Rd7 Qxc4 {intending ...Qc1+.} 34. Bf4 Qg8 {[#]} 35. Be3 $1 {[%cal Re3d4] Intending Bd4 and mate.} Rd8 36. Bd4 {Threatening mate with Rxd8.} Rxd7 37. Qxd7 h6 38. Qxg7+ Qxg7 39. Bxg7+ Kxg7 40. Kg2 Kg6 41. Kh3 {Accuracy: White = 84%, Black = 49%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.14"]
[White "Karthikeyan, Murali"]
[Black "Sethuraman, S.P."]
[Result "1/2-1/2"]
[ECO "B92"]
[WhiteElo "2602"]
[BlackElo "2641"]
[Annotator "TA"]
[PlyCount "143"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,143,10,0,10,6,12,22,20,16,19,19,11,22,28,0,0,0,0,0,0,0,-6,-8,-11,0,-10,0,0,-23,-24,-37,-22,-27,-25,-56,-50,-53,-42,-54,-41,-49,-17,-79,-79,-96,-47,-57,-57,-57,-57,-52,-51,-53,-53,-53,-50,-48,-50,-51,-51,-51,-53,-62,-49,-48,-38,-45,0,-52,-52,-60,-60,-60,-56,-56,-56,-56,-56,-66,-66,-66,-66,-66,-65,-65,-58,-62,-59,-104,-104,-104,-104,-109,-109,-109,-109,-136,-136,-136,-136,-136,-136,-136,-136,-136,-136,-136,-136,-136,-136,-136,-136,-136,0,0,0,-136,-8,-136,-136,-136,-8,-8,-8,-8]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. Be3 Be6 9. O-O O-O 10. Bf3 Nbd7 11. a4 Qc7 $1 {[%mdl 4] outshines the older 11...Rc8. B92: Sicilian Najdorf: 6 Be2.} 12. Re1 Rfc8 13. a5 b5 14. axb6 $1 Nxb6 15. Na5 Nc4 16. Nxc4 Bxc4 {[#]} 17. Qd2 $146 ({Predecessor:} 17. Na4 Rab8 18. b3 Bb5 19. c4 Bxa4 20. Rxa4 Qb7 21. Bg5 Qxb3 {½-½ (21) Ye,J (2632)-Zhou,J (2572) China 2007}) 17... Rab8 18. Reb1 h6 19. h3 Qc6 20. Ra4 Bd8 21. Ra3 a5 22. Qe1 Be6 23. Bd2 Bb6 24. Na4 Bd4 ({Not} 24... Qxc2 $2 25. Rc1 $18) 25. c3 Ba7 26. b4 Qc7 27. Raa1 axb4 28. cxb4 Bd4 29. Rc1 Qb7 30. Nc3 Bd7 31. b5 (31. Rab1 $11) 31... Bxb5 $17 32. Rab1 Bxc3 (32... Qd7 {with more complications.} 33. Nxb5 Rxc1 34. Qxc1 Rxb5 35. Rb4 Qb7) 33. Rxc3 {next Rcb3 is good for White.} Rxc3 34. Bxc3 Qc7 35. Ba5 Qc6 36. Rc1 Qa6 37. Ra1 Ra8 38. Bc3 Qc6 39. Rxa8+ Qxa8 40. Bb4 Qc6 41. Qd2 Ne8 42. Kh2 Ba4 43. Qa2 Bb5 44. Qd2 Ba6 45. Bd1 Qxe4 46. Ba4 Nf6 {Hoping for ...Nd5.} 47. f3 Qc4 {And now ...d5 would win.} 48. Qxd6 Nd5 {[#] Strongly threatening ...Qf4+.} 49. Bc2 Qxc2 50. Qxd5 Bf1 {[%csl Gf1][%cal Rc2g2]} 51. Qd2 Qc4 52. Qc3 Qe6 53. Qe1 Bc4 54. f4 exf4 55. Qxe6 Bxe6 {[%mdl 4096] Endgame KB-KB} 56. Bd2 g5 57. h4 f6 58. hxg5 fxg5 59. g3 fxg3+ 60. Kxg3 Kf7 61. Ba5 Kg6 62. Bd8 h5 63. Be7 h4+ 64. Kf2 Kh5 65. Bd8 g4 66. Bc7 Kg5 (66... Bd7 $17) 67. Bd8+ $11 Kh5 (67... Kf4 $11 68. Bxh4 Bf7) 68. Bc7 $1 $17 Kg6 (68... Bc4 $17) 69. Bb8 (69. Bd8 $11 {was the only way to keep the balance.}) 69... Kf5 70. Bc7 g3+ {[#]} (70... Bd5 $17) 71. Bxg3 $1 $11 {[%mdl 512]} hxg3+ 72. Kxg3 {Accuracy: White = 85%, Black = 84%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.15"]
[White "Riazantsev, Alexander"]
[Black "Aryan Chopra"]
[Result "1/2-1/2"]
[ECO "D86"]
[WhiteElo "2639"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "46"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,46,8,8,7,8,14,15,26,22,0,0,8,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 Nc6 9. Be3 O-O 10. O-O e6 {10...Bg4 is setting a new trend. Played by Shakhriyar Mamedyarov in December 2019.} 11. dxc5 {D87: Exchange Grünfeld: Classical Line: Variations without ...cxd4.} Qa5 12. Bb3 b6 13. cxb6 axb6 {[#]} 14. Nd4 $146 {The position is equal.} ({Predecessor:} 14. f4 Ba6 15. Qe1 Bxe2 16. Qxe2 Qxc3 17. e5 Nd4 18. Qe1 Qxe1 19. Rfxe1 Rfd8 20. Red1 Nxb3 21. Rxd8+ {½-½ (21) Manaenkov,V (2425)-Belka,W (2497) ICCF email 2014}) 14... Bb7 15. Nxc6 (15. Qg4 {with more complications.} Qxc3 16. Rac1 Ne5 17. Qg5 Qd3 18. Rc7) 15... Bxc6 16. Qc2 Rfc8 17. Rac1 Bb5 {[%cal Rc8c3]} 18. c4 Bxc4 19. Bxc4 {[#] Hoping for Qb1.} b5 20. Qe2 bxc4 21. Rxc4 Rxc4 22. Qxc4 Qxa2 23. Qxa2 Rxa2 {A rather calm draw. Accuracy: White = 100%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.16"]
[White "Shimanov, Aleksandr"]
[Black "Shtembuliak, Evgeny"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2587"]
[BlackElo "2628"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,95,15,28,22,62,30,43,33,41,37,56,53,28,36,50,45,15,0,20,0,21,0,88,0,0,0,0,0,0,0,0,0,0,0,0,0,26,12,44,21,51,50,57,57,64,69,66,53,217,214,264,260,248,247,256,247,249,0,183,0,243,242,266,248,311,333,353,353,421,427,847,858,862,827,1301,1250,5277,5277,4902,4481,4133,4133]} 1. d4 g6 2. e4 Bg7 3. Nc3 d6 4. Be3 a6 5. Qd2 b5 6. f3 Nd7 7. h4 h5 8. Nh3 Bb7 9. Ng5 {B06: Modern Defence.} e6 10. O-O-O Ngf6 11. Kb1 {White is slightly better.} Qe7 12. a3 Rd8 13. Rg1 O-O 14. g4 c5 $1 {[#]} 15. gxh5 $146 ({Predecessor:} 15. Qh2 hxg4 16. fxg4 b4 17. axb4 cxb4 18. Ne2 Nxe4 19. Nxe4 Bxe4 20. Ng3 Nf6 21. Nxe4 Nxe4 {½-½ (47) Parshin,V (2384)-Neto,H (2580) ICCF email 2017}) 15... Nxh5 16. Be2 cxd4 17. Bxd4 Bxd4 18. Qxd4 Nf4 {[#]} (18... Nc5 $11) 19. Qe3 ({Much weaker is} 19. Qxd6 Qxd6 20. Rxd6 Ne5 $15) (19. h5 $1 $16) 19... e5 $11 {And now ...f6 would win.} 20. Bf1 Nf6 21. Nh3 Nxh3 22. Bxh3 {Strongly threatening Qh6.} Kg7 $1 23. Rdf1 Rh8 24. f4 {next f5 is good for White.} Rxh4 25. f5 $1 {[%cal Rf5g6] Hoping for fxg6.} Bxe4 26. fxg6 Bxg6 27. Bf5 $1 Rdh8 28. Ne2 R8h6 29. Ng3 $1 {Bxg6 is the strong threat.} Kh7 30. Bxg6+ fxg6 31. Qg5 $1 Rf4 $2 {[#]} (31... Rg4 $1 $14 32. Qxf6 Qxf6 33. Rxf6 Rh3) 32. Ne2 $1 $18 {[%cal Re2f4]} Rf5 33. Rxf5 gxf5 34. Qxf5+ Kh8 35. Qc8+ Kh7 36. Qf5+ (36. Qxa6 Qd7) 36... Kh8 37. Qc8+ $40 {[%mdl 128] White attacks.} (37. Nc3 $142 {Black must now prevent Nd5!} Qf8 38. Rd1) 37... Kh7 38. Qxa6 Rg6 39. Rh1+ ({Don't do} 39. Qxb5 $6 Rxg1+ 40. Nxg1 Kg7 $16) 39... Rh6 40. Rd1 d5 41. Qxb5 Kg6 42. Nc3 {White is clearly winning.} d4 (42... Qd7 $142 43. Qe2 Qg4 44. Qxe5 Rh5) 43. Rg1+ Kf7 44. Qc4+ Ke8 45. Nd5 Nxd5 46. Qc8+ Kf7 47. Qg8+ Kf6 48. Qg5+ {[%mdl 64] Double Attack. Accuracy: White = 92%, Black = 56%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.17"]
[White "Deac, Bogdan-Daniel"]
[Black "Badelka, Olga"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2626"]
[BlackElo "2404"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,99,24,5,55,38,53,50,77,77,77,72,81,51,71,74,80,77,76,66,72,68,118,112,123,121,112,111,153,136,118,118,166,166,153,146,141,127,133,88,79,91,75,74,88,89,94,91,85,80,189,177,168,130,196,189,220,219,220,199,215,204,274,261,536,542,531,520,464,404,398,389,464,450,450,441,578,569,554,565,565,557,613,543,704,697,1441,1275]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. Qa4+ c6 6. Qxc4 b5 7. Qd3 Nbd7 8. e4 a6 {D43: Semi-Slav: 5 Bg5 h6.} (8... b4 $5 {[%cal Rb4c3]} 9. Na4 Be7 $11) 9. Be2 $5 {[%mdl 4] A promising side line.} (9. e5 $5 {[%cal Re5f6]} Nd5 10. Nxd5 exd5 11. Be2 $14) 9... Be7 {[#]} 10. O-O $146 ({Predecessor:} 10. e5 Nd5 11. Nxd5 cxd5 12. O-O Nb8 13. Bd2 Nc6 14. Rac1 Bd7 15. Rc2 Qb6 16. Rfc1 {0-1 (49) Ishee,J (1900)-Laine,E (1889) ICCF email 2008}) 10... Bb7 {[#]White is slightly better.} 11. e5 $1 {[%cal Re5f6]} Nd5 12. Nxd5 cxd5 13. Bd2 O-O 14. Rfc1 Qb6 15. Bg5 Rfe8 16. Bxe7 Rxe7 17. Rc2 f6 18. Qe3 Ree8 19. Rac1 Rac8 20. exf6 gxf6 21. Qh6 {Bd3 is the strong threat.} Rxc2 22. Rxc2 Qd6 23. Bd3 Re7 24. h4 Rf7 25. g3 Nb8 26. Qh5 Nc6 27. a3 Qe7 28. Rc1 Rg7 29. Qh6 Nd8 30. Qf4 Nc6 31. Re1 h5 {[#]} (31... Bc8 $16) 32. Bf5 $1 {[%mdl 512]} Bc8 (32... exf5 33. Rxe7) 33. Kh2 Nd8 (33... Bd7 $16 {is a better defense.} 34. b4 Bc8) 34. Qh6 $18 Qf7 35. Bh3 Bd7 36. Qf4 Qe7 37. Qc7 Be8 38. Qb6 Bg6 $2 (38... Kf8 {was worth a try.} 39. Bxe6 Qc7 40. Qxa6 Qc6 41. Qxc6 Bxc6) 39. Bxe6+ Nxe6 40. Rxe6 {[%mdl 64] Double Attack} Qc7 41. Rxf6 Qxb6 42. Rxb6 {[%mdl 4096] Endgame KRB-KRN} Be4 43. Rb8+ {White is clearly winning.} Kh7 44. Ng5+ Kg6 45. f3 Bb1 46. Rb6+ Kf5 47. Rxa6 Rc7 48. Rd6 Ba2 49. Kh3 Bc4 50. g4+ {Accuracy: White = 93%, Black = 45%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.18"]
[White "Zvjaginsev, Vadim"]
[Black "Asadli, Vugar"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "2623"]
[BlackElo "2538"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,68,2,4,14,11,14,13,16,17,19,29,21,25,20,37,33,31,30,35,28,32,25,33,20,33,38,53,13,33,27,60,60,57,50,58,4,5,3,8,0,8,7,8,0,2,1,10,8,55,39,36,24,24,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nxc6 Qf6 6. Qf3 dxc6 7. Nc3 {C45: Scotch Game.} Be6 8. Be3 Qxf3 9. gxf3 Bxe3 10. fxe3 Nf6 {10...Ne7 is a critical line.} 11. Rg1 g6 12. Ne2 {[#]} Nh5 $146 ({Predecessor:} 12... O-O-O 13. Nd4 Rhe8 14. e5 Nd7 15. Nxe6 Rxe6 16. f4 f6 17. Bh3 Re7 18. O-O-O fxe5 19. fxe5 Rxe5 {1-0 (35) Oviedo Araujo,A (1862)-Kokarev,A (1970) ICCF email 2017}) 13. Rd1 Ke7 14. Nd4 Bd7 15. Rg5 b6 16. Rg2 Rhd8 17. Rgd2 Ng7 18. Bc4 a5 19. a3 Be8 20. f4 c5 21. Nb5 $1 Rxd2 22. Rxd2 Rc8 23. Bf1 (23. e5 $14) 23... Bxb5 24. Bxb5 $11 {[%mdl 4096] Endgame KRB-KRN} c6 $1 {[%cal Rc6b5]} 25. Bf1 f6 $1 26. h4 Rd8 27. Rg2 b5 28. b3 Ne8 29. h5 Kf7 30. hxg6+ hxg6 31. Rh2 Kg7 32. Bh3 Nd6 {The position is equal.} 33. Rd2 Kf8 34. Bf1 Ke7 {Accuracy: White = 91%, Black = 93%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.19"]
[White "Murzin, Volodar"]
[Black "Indjic, Aleksandar"]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "2442"]
[BlackElo "2622"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,100,8,4,8,49,19,18,26,14,26,31,8,9,0,0,0,0,0,0,-13,-7,-13,-2,-3,-2,-5,0,-4,0,-10,-10,-11,-13,-17,0,-39,-35,-41,-38,-47,-42,-47,-34,-35,-38,-43,-47,-64,-56,-57,-56,-58,-57,-70,-59,-44,-37,-26,-37,-125,-125,-112,-74,-83,-71,-250,-239,-1027,-990,-1076,-1083,-923,-1127,-1047,-1114,-1107,-1089,-1534,-1261,-1226,-1144,-2237,-2145,-2084,-2014]} 1. d4 Nf6 2. Nf3 e6 3. Bf4 d5 4. Nbd2 Bd6 5. e3 O-O 6. Bd3 c5 7. c3 Qc7 8. Bxd6 Qxd6 9. O-O Nbd7 10. Re1 {D03: 1 d4 d5 2 Nf3 Nf6 3 Bg5, including Torre Attack with early ...d5.} e5 $5 {[%mdl 4] An interesting side line.} 11. dxe5 Nxe5 12. Nxe5 {The position is equal.} Qxe5 13. e4 Bg4 14. exd5 (14. f3 {looks sharper.} Bh5 15. exd5 Qxd5 16. Bf1 Rad8 17. Nc4) 14... Qxd5 {[#]} 15. Be2 $146 ({Predecessor:} 15. Nf3 Rad8 16. Be2 Qc6 17. Qc2 Rfe8 18. Rad1 Rxd1 19. Rxd1 Qe6 20. Kf1 Qxa2 21. Bb5 {0-1 (28) Esteve Lopez,J (2035)-Sanchez Bernardino,M (2205) Tarragona 2003}) 15... Bxe2 16. Rxe2 Rfe8 17. Rxe8+ Rxe8 18. Nf3 Qf5 19. Qd2 h6 20. Rd1 b6 21. h3 g5 22. Qd3 Re4 23. Qb1 Qe6 24. a3 Re2 25. Re1 Nd5 26. Qd1 Nf4 {...g4 is the strong threat.} 27. Rxe2 Nxe2+ 28. Kf1 Nf4 29. Ne1 Qc4+ 30. Kg1 Qe4 31. Kf1 c4 32. f3 Qe3 33. Nc2 Qd3+ 34. Qxd3 Nxd3 $15 {[%mdl 4096] Endgame KN-KN} 35. Ke2 Nxb2 36. Ke3 f5 37. Kd4 f4 38. Nb4 ({White should try} 38. Kd5 $15) 38... Kg7 $17 39. Nc6 a6 $1 40. Ne7 b5 41. Nd5 $2 {This costs White the game.} (41. Nc6 $17 {was forced.}) 41... Kg6 $1 $19 42. Nc7 $2 {[#]} (42. h4) 42... Kh5 $1 {[%cal Rh5h4] Black is clearly winning.} 43. Nxa6 {[#]} Kh4 $1 {[%cal Rh4g3]} 44. Nc7 Kg3 45. Nxb5 Kxg2 46. Ke4 Na4 47. Nd6 Nxc3+ 48. Kd4 Na4 49. Kxc4 Kxf3 50. Kb5 Nb2 {Accuracy: White = 71%, Black = 97%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.20"]
[White "Nesterov, Arseniy"]
[Black "Kobalia, Mikhail"]
[Result "1/2-1/2"]
[ECO "D30"]
[WhiteElo "2501"]
[BlackElo "2609"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,91,19,30,29,35,18,17,27,25,10,4,3,10,8,0,0,10,0,7,0,0,-6,0,0,0,0,0,0,0,0,0,0,18,0,0,0,0,-12,-1,-18,-33,-19,0,-2,-2,-2,-2,-5,-7,-8,-8,-9,0,0,0,0,0,0,0,0,0,0,0,-2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 e6 3. Nf3 a6 4. Bg5 Be7 5. Bxe7 Nxe7 6. e3 {D30: Queen's Gambit Declined: Systems without Nc3.} O-O 7. Nbd2 {[%cal Bb1d2,Bd2c4,Bc4e5][%mdl 32]} Nd7 8. Rc1 b6 {[#]} 9. cxd5 $146 ({Predecessor:} 9. Be2 Bb7 10. O-O a5 11. cxd5 Bxd5 12. Qa4 c5 13. Bb5 Ra7 14. Bxd7 Rxd7 15. dxc5 Bc6 16. Qh4 bxc5 17. Ne4 Bxe4 18. Qxe4 Rd5 19. Rc3 {½-½ (19) Erdos,V (2604)-Grandelius,N (2678) Daventry 2019}) 9... Nxd5 10. Be2 Bb7 11. O-O c5 12. Nc4 Qe7 13. Nfe5 Rad8 14. Nxd7 Rxd7 15. Bf3 cxd4 16. Ne5 Rdd8 17. Qxd4 f6 18. Nc4 Nb4 19. Qxb6 Bxf3 20. gxf3 Nxa2 21. Rcd1 Nb4 22. Rxd8 Rxd8 23. Na5 Rd5 {[#] And now ...Rb5 would win.} 24. Nc6 Qd6 25. Qxb4 {Threatens to win with Ne7+.} Rg5+ {The position is equal.} 26. Kh1 Qxc6 $11 {[%cal Rc6f3][%mdl 4096] Endgame KQR-KQR} 27. Qb8+ Kf7 {[%cal Rc6f3]} 28. Qa7+ Kg6 {[%cal Rc6f3]} 29. e4 {[#]} Qb5 $1 {[%cal Rb5f1][%mdl 512]} 30. Rg1 Qe2 31. Rxg5+ fxg5 {[%cal Re2f1] KQ-KQ} 32. Kg2 g4 33. fxg4 $1 Qxg4+ 34. Kf1 Qh3+ 35. Kg1 Qd3 36. Qb7 Qb5 37. Qc8 Qxb2 {White must now prevent ...Qb1+.} 38. Qxe6+ Qf6 39. Qe8+ Kg5 40. Qb8 Qf4 41. Qb7 Qf6 42. Qc7 Kg4 43. Qg3+ Kh5 44. Kf1 Qa1+ 45. Kg2 Qf6 46. Kf1 {Accuracy: White = 100%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.21"]
[White "Kovalev, Vladislav"]
[Black "Visakh N R"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2650"]
[BlackElo "2518"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,95,-6,-2,-28,-23,-9,-10,-34,-36,-50,0,-11,-16,-14,0,0,12,21,15,0,4,0,0,3,24,29,28,0,30,25,71,67,74,34,112,110,131,104,167,167,709,133,126,125,141,135,137,131,137,124,125,111,125,128,138,129,115,132,316,292,310,319,318,277,298,322,405,405,509,479,510,472,514,514,503,490,577,478,541,544,535,502]} 1. e4 c5 2. Nc3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. f4 g6 6. Nf3 Bg7 7. O-O Nc6 8. d3 Nf6 9. Kh1 {B23: Closed Sicilian: Lines without g3.} O-O 10. Be3 b5 {[%cal Bb7b5,Bb5b4][%mdl 32] [#]} 11. Qe1 $146 {The position is equal.} ({Predecessor:} 11. Bg1 Nh5 12. Qd2 b4 13. Nd1 f5 14. e5 dxe5 15. fxe5 Nxe5 16. Bxc5 a5 17. a3 bxa3 18. Rxa3 {½-½ (26) Rahimli,I (1992)-Gasimov,P (2342) Sivas 2019}) 11... b4 12. Nd1 c4 13. Nf2 cxd3 14. cxd3 e5 15. fxe5 dxe5 16. Rc1 Rfc8 17. Qd1 Qb7 18. Qa4 Nd7 19. Rc4 Nb6 20. Qb5 Rab8 21. Rc2 Qa8 22. Qa6 b3 {[%mdl 64] Decoy} 23. axb3 Nd4 24. Rc3 Nd7 {[#]} ({Black should play} 24... Qb7 $14 25. Qa2 Nd7) 25. b4 $1 $16 {[%mdl 512]} Rc6 (25... Rxb4 26. Rxc8+) 26. Qa4 {And now Bxd4 would win.} Nb6 {[#]} (26... Rd6 $16 {might work better.}) 27. Qa2 $1 $18 Rbc8 $2 {[#]} (27... Nxf3 28. gxf3 Qb7) 28. Ng4 $2 (28. Nxe5 $1 $18 {[%mdl 512] and the rest is easy.} Bxe5 29. Ng4) 28... Nxf3 $16 29. Rxf3 {White wants to mate with Nh6+.} Qb7 30. Qb3 h5 31. Nh6+ Bxh6 32. Bxh6 Qe7 33. Rf1 Qe6 34. Qc2 Nd7 35. Rc1 {[%cal Rc3c6]} Rxc3 36. bxc3 a5 $2 {This costs Black the game.} (36... Qb6 $16 37. Qb3 Qf2) 37. bxa5 $18 Qa6 38. Ra1 Nc5 39. d4 Nb7 40. Qa4 Ra8 41. Qb4 Nd6 42. dxe5 {White is clearly winning.} Nc4 43. Qe7 Qe6 44. Qxe6 fxe6 45. a6 {[%cal Ba5a6,Ba6a7][%mdl 32]} Kf7 46. a7 Ke7 47. Bf4 Kd7 48. Ra6 {Accuracy: White = 80%, Black = 63%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.22"]
[White "Artemiev, Vladislav"]
[Black "Sanal, Vahap"]
[Result "1-0"]
[ECO "A15"]
[WhiteElo "2728"]
[BlackElo "2569"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,85,9,0,-2,21,12,16,21,17,14,33,21,65,58,75,62,93,66,64,64,70,73,65,75,75,70,75,75,77,69,58,79,79,83,139,147,140,147,149,138,144,124,125,109,122,122,132,114,111,102,120,122,112,129,225,213,224,135,202,196,319,315,305,262,247,213,353,348,331,308,327,340,585,582,576,559,538,536]} 1. c4 Nf6 2. g3 e5 3. Bg2 g6 4. d4 exd4 5. Qxd4 Nc6 6. Qe3+ {A20: English Opening: 1...e5.} Ne7 (6... Be7 {feels hotter.} 7. Nc3 O-O 8. Nh3 d5 9. cxd5 Bxh3 10. Bxh3 Nxd5 11. Qf3 Nxc3 12. bxc3 Bg5) 7. Nc3 Bg7 8. Qd2 {The position is equal.} O-O 9. e4 {[#]} d6 $146 ({Predecessor:} 9... Nc6 10. Nge2 Re8 11. O-O d6 12. b3 Nxe4 13. Bxe4 Rxe4 14. Nxe4 Bxa1 15. Nf4 Bg7 {½-½ (29) Gritsenko,V-Kislov,S (2365) Voronezh 1997}) 10. Nge2 Ng4 11. h3 Ne5 12. b3 f5 {Threatening ...fxe4.} 13. Bb2 fxe4 14. Nxe4 Nd3+ 15. Qxd3 Bxb2 16. Rd1 Bg7 17. O-O Kh8 18. Nf4 Bf5 19. Qe3 Nc6 20. c5 {[%cal Rc5d6]} Be5 21. cxd6 Bxe4 ({Better is} 21... cxd6 22. Rfe1 Bxe4 23. Qxe4 (23. Bxe4 Bxf4 24. gxf4 Qf6 $11) 23... Bxf4 24. gxf4 Rc8) 22. dxc7 $1 $16 (22. Bxe4 $6 Bxf4 23. gxf4 cxd6 $14) 22... Qxc7 23. Ne6 $1 {[%cal Re6c7]} Qf7 {[#] Strongly threatening ...Bxg2.} 24. Ng5 $1 {[%cal Rg5f7]} (24. Qxe4 Qxe6 25. f4 {[#]} Bd4+ $1 {[%mdl 512]} 26. Rxd4 Nxd4 $17) 24... Qg7 {Hoping for ...Bxg2.} 25. Qxe4 {And now Ne6 would win.} Rae8 26. Qc4 Nd4 27. Rfe1 {Black must now prevent Rxd4!} h6 28. Ne4 Rc8 29. Qd3 Rfd8 30. Rd2 Qf8 {intending ...Nc2.} 31. Red1 Bg7 (31... Rc7 $16 32. Qe3 Rcd7) 32. Qe3 $18 Qb4 33. Kh2 a5 {[#]} (33... Rd7 $16 34. a3 Qb6) 34. Nf6 $1 {[%mdl 512]} Qd6 (34... Qf8 $142) (34... Bxf6 35. Qxh6+) 35. Nd5 ({But not} 35. Rxd4 Qxf6 36. Rf4 (36. Bxb7 Rxd4 37. Rxd4 Qxd4 $16) 36... Qe5 $18) (35. Qxd4 Qxd4 36. Rxd4 Bxf6 $16) ({Much less strong is} 35. Bxb7 Rb8 $18) 35... Nf5 36. Qe4 Re8 37. Qf3 b6 (37... Nh4 $142 38. Qg4 Nxg2) 38. Nf4 Qf6 39. Rd5 Rf8 40. Qg4 Kh7 $2 (40... Ne7 {was called for.} 41. Rd6 Qg5) 41. Be4 {White is clearly winning.} Rc5 42. Rxc5 bxc5 43. Rd7 {Black did not feel at home in the position after the opening. Accuracy: White = 92%, Black = 61%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.23"]
[White "Grigoriants, Sergey"]
[Black "Narayanan.S.L"]
[Result "1-0"]
[ECO "C70"]
[WhiteElo "2539"]
[BlackElo "2637"]
[Annotator "TA"]
[PlyCount "115"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,115,52,51,44,53,54,25,30,34,29,22,32,25,35,27,72,64,75,73,89,75,75,61,92,81,80,74,119,114,128,117,132,136,135,126,145,149,161,154,150,146,156,174,158,169,163,151,175,166,167,168,171,169,161,123,122,129,154,145,163,164,165,156,164,172,168,167,364,351,368,368,344,329,439,335,329,326,299,306,273,257,228,30,30,50,55,22,87,50,50,50,50,0,0,0,0,0,0,0,1797,1468,926,897,29984,29985,29984,29985]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bc5 5. c3 Nge7 6. O-O Ng6 {is now debated instead of 6...b5. C64: Ruy Lopez: Classical Defence (3...Bc5) except 4 0-0 Nf6.} 7. d4 Ba7 8. Bg5 f6 {White has an edge.} 9. Be3 O-O 10. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1g3][%mdl 32]} d6 11. Re1 Kh8 12. h3 Qe7 13. Nf1 $36 {[%mdl 2048] [#] White fights for an advantage.} Nd8 $146 ({Predecessor:} 13... Nf4 14. Ng3 g5 15. Nh2 Qg7 16. Qd2 Ne7 17. Bd1 Neg6 18. Bxf4 gxf4 19. Nh5 Qf7 {0-1 (34) Demianjuk,A (2317)-Rodin,M (2365) Zvenigorod 2008}) 14. Ng3 Ne6 15. h4 Qf7 16. Bb3 Qe8 17. Qd2 Bd7 18. Rad1 Rd8 19. h5 Ngf4 {[#]} 20. h6 $1 {[%mdl 512]} Qg6 (20... gxh6 21. dxe5) 21. hxg7+ $1 Qxg7 22. Bxe6 Bxe6 23. Bxf4 exf4 24. Qxf4 Rg8 25. b3 Rdf8 26. Nh4 Qg5 27. Qxg5 fxg5 28. Nhf5 g4 29. Kf1 Rg5 30. Ne3 a5 31. Ke2 a4 32. d5 ({Don't take} 32. bxa4 Ra5 $16) 32... Bd7 33. Rh1 Rf4 34. Rh6 Rg6 35. Rdh1 Rxh6 36. Rxh6 axb3 37. axb3 Bb5+ 38. c4 Be8 $2 (38... Bd7 {is a better defense.} 39. Rh1 Rf8) 39. Re6 $18 Bg6 40. Ngf5 Bxf5 41. exf5 Bxe3 42. Kxe3 ({Less strong is} 42. Rxe3 Rxf5 43. Re7 c6 $16) 42... Rxf5 {[%mdl 4096] Endgame [#] KR-KR} 43. Re8+ $1 Kg7 {[#]} 44. Re7+ $1 Kg6 45. Rxc7 h5 46. f3 $2 (46. Rd7 $18) 46... gxf3 $11 47. gxf3 h4 $1 48. Kf2 h3 (48... Rg5 $11 {keeps the balance.}) 49. Kg3 ({Don't play} 49. Rxb7 $6 Rg5 $11) 49... Rh5 {( -> ...h2)} 50. Kh2 Rf5 $1 51. Rxb7 {Black must now prevent Rd7.} Rxf3 52. Rb6 {b4 is the strong threat.} Kf5 53. Rxd6 {And now b4 would win.} Rxb3 54. c5 {Hoping for c6.} Kg4 $2 {[%mdl 8192]} (54... Rc3 $11) 55. Rg6+ $18 Kh4 56. d6 {Strongly threatening d7.} Rb2+ 57. Kh1 Rd2 58. Rg1 {Accuracy: White = 82%, Black = 75%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.24"]
[White "Frolyanov, Dmitry"]
[Black "Martirosyan, Haik M."]
[Result "1/2-1/2"]
[ECO "C17"]
[WhiteElo "2556"]
[BlackElo "2630"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,81,-8,20,20,23,19,20,14,20,19,25,31,18,0,1,0,0,0,0,-12,-18,-11,5,0,0,-32,0,0,0,0,0,0,9,0,0,0,0,0,0,0,46,53,12,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Ba5 6. Qg4 Ne7 7. dxc5 Bxc3+ 8. bxc3 O-O 9. Bd3 {C18: French: 3 Nc3 Bb4: Main line: 7 h4 and 7 Qg4.} Nd7 10. Nf3 {[#] And now Bxh7+! would win.} Nf5 11. O-O Nxc5 12. a4 b6 {[#]} 13. Ba3 $146 ({Predecessor:} 13. Nd4 Qc7 14. Bxf5 exf5 15. Qf4 Ba6 16. Re1 Ne6 17. Qg3 Nxd4 18. cxd4 Qc6 19. a5 {½-½ (37) Leko,P (2730)-Grischuk,A (2783) Beijing 2013}) 13... Re8 14. Bxc5 bxc5 15. c4 dxc4 16. Qxc4 Bb7 17. Be4 Bxe4 18. Qxe4 Qd5 19. Rfe1 Rab8 20. Rad1 Qxe4 21. Rxe4 Red8 22. Rxd8+ Rxd8 $11 {[%mdl 4096] Endgame KRN-KRN} 23. Kf1 Kf8 24. Rc4 Rd5 25. Rc3 h6 26. Rb3 g5 27. Rb7 Nd4 28. c4 Rd8 29. Rxa7 {The position is equal.} Nxf3 30. gxf3 {KR-KR} Rd4 31. a5 {[%cal Ba4a5,Ba5a6,Ba6a7][%mdl 32]} Rxc4 32. Rc7 Rc2 33. a6 Kg7 34. a7 Ra2 35. Ke1 c4 36. Kd1 c3 37. Kc1 c2 38. Kd2 Kg6 39. Re7 h5 40. h3 h4 41. Rc7 {Accuracy: White = 100%, Black = 93%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.25"]
[White "Moroni, Luca Jr"]
[Black "Durarbayli, Vasif"]
[Result "0-1"]
[ECO "D43"]
[WhiteElo "2536"]
[BlackElo "2625"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,102,14,0,-7,10,0,0,-16,-10,-6,0,0,7,-17,-16,-29,-11,-6,-12,-9,-23,-27,-26,-23,-25,-77,-34,-37,0,0,0,0,0,-3,0,0,0,-73,-70,-118,-110,-111,-113,-115,-79,-76,-84,-94,0,0,0,0,0,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,0,-1102,-770,-10316,-8,-10309,-10309,-8364,-8289,-6788,-6079,-29949,-29949,-29956,-29957,-5114,-5069]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Qd3 dxc4 6. Qxc4 b5 7. Qd3 a6 8. e4 {D43: Semi-Slav: 5 Bg5 h6.} c5 9. e5 c4 10. Qc2 {The position is equal.} Nd5 11. a4 {[#]} Nxc3 $146 ({Predecessor:} 11... Bb7 12. axb5 Nxc3 13. bxc3 axb5 14. Rxa8 Bxa8 15. Be2 Be7 16. O-O O-O 17. Nd2 Bd5 {1-0 (81) Nabaty,T (2582)-Umanec,F (2303) Pardubice 2012}) 12. bxc3 Bb7 13. Qb1 Qd5 14. Be2 Be7 15. Ba3 Nc6 16. Bxe7 Nxe7 17. axb5 axb5 18. Rxa8+ Bxa8 19. Nd2 (19. Qb2 $11 {remains equal.}) 19... Qd7 (19... O-O $5 {[%cal Rd5g2]} 20. Bf3 Qd7 $11) 20. O-O h6 (20... O-O {is interesting.} 21. Rc1 Rc8 22. Qb2 h6 23. g3 Bc6) 21. Ne4 {Nd6+ is the strong threat.} Bxe4 22. Qxe4 O-O 23. Bf3 Rb8 24. Rb1 Qa7 25. Qe2 {[#]} (25. g3 $11 {keeps the balance.}) 25... b4 $1 $17 26. Qxc4 bxc3 27. Rxb8+ Qxb8 28. Be4 Qb2 29. g3 g6 {And now ...Qd2 would win.} 30. Kg2 Nf5 (30... Qd2 $17 {White must now prevent ...Nf5.} 31. Qc5 Qe1) 31. Qc8+ $11 Kg7 {( -> ...Ne3+)} 32. Qd8 $1 Qb4 33. Qf6+ Kg8 34. Qd8+ Kh7 35. Qf6 $1 {[%cal Rf6f7]} Qe7 36. Qxe7 Nxe7 {[%mdl 4096] Endgame KB-KN} 37. Kf3 $132 {[%mdl 2048] White is not keeping still} Nc6 {Threatens to win with ...c2.} 38. Ke3 Nb4 39. h4 h5 40. f3 Kg7 41. g4 g5 42. hxg5 h4 {Hoping for ...h3.} (42... c2 $5 43. Kd2 $8 h4 $11) 43. f4 Nd5+ 44. Kf3 $2 {[%mdl 8192]} (44. Kd3 $11) 44... h3 $19 45. f5 h2 $2 (45... c2 $1 $19 {[%cal Rc2c1]} 46. Bxc2 h2) 46. Kg2 $2 {[%mdl 8192] White does not recover from this.} (46. Ke2 $11) 46... c2 47. Bxc2 Ne3+ {[%mdl 64] [#] Double Attack} 48. Kxh2 Nxc2 49. d5 exd5 50. Kg3 Nd4 51. Kf4 Nc6 {Accuracy: White = 73%, Black = 82%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.26"]
[White "Chigaev, Maksim"]
[Black "Krishna C R G"]
[Result "1/2-1/2"]
[ECO "C05"]
[WhiteElo "2616"]
[BlackElo "2443"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,77,14,15,0,0,0,37,17,78,0,9,0,21,18,27,35,29,25,20,6,10,10,10,0,0,0,0,0,0,0,0,0,0,-2,0,0,0,0,0,-22,-19,-32,-16,-32,-22,-16,-20,-37,-37,-29,-35,-26,-4,-4,-4,-4,-4,-4,-6,-8,0,0,0,0,0,0]} 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. c3 c5 6. f4 Nc6 7. Ngf3 a5 8. a4 {C05: French Tarrasch: 3...Nf6 4 e5 Nfd7, 5 f4 and 5 Bd3 sidelines.} cxd4 9. cxd4 Qb6 10. Nb3 {White is slightly better.} f6 (10... Bb4+ $11 11. Kf2 f6) 11. Bd3 (11. Bd2 $16) 11... Bb4+ 12. Ke2 Be7 13. Be3 Nb4 14. Bb5 O-O {[#]} 15. Kf2 $146 ({Predecessor:} 15. Nc1 Nb8 16. Kf2 Bd7 17. Be2 N8c6 18. Nb3 Be8 19. exf6 Rxf6 20. Qd2 Bg6 21. Rhc1 {1-0 (36) Hauge,L (2322)-Hjelmaas,L (2302) Oslo 2014}) 15... Qd8 16. Re1 Nb6 17. exf6 Bxf6 18. Nc5 Nc4 19. b3 b6 20. Nd3 Nxd3+ 21. Qxd3 Nd6 $1 22. Kg1 Nxb5 23. Qxb5 Ba6 24. Qc6 Re8 {[#] ...Rc8 is the strong threat.} 25. Qc2 Rc8 26. Qb2 Bd3 {Threatens to win with ...Rc2.} 27. Rac1 Be4 28. Ne5 h6 29. h3 Qe7 30. Kh2 Qb7 31. b4 axb4 32. Qxb4 Bxe5 (32... Bh4 {looks sharper.} 33. Rxc8 Rxc8 34. Re2 Be7 35. Qb5 Qc7) 33. dxe5 {The position is equal.} d4 34. Qxd4 Bxg2 {[#] Strongly threatening ...Qf3.} 35. Rg1 $132 {[%mdl 2048] White is not keeping still} Rxc1 36. Bxc1 Be4 37. f5 $1 Bxf5 {Hoping for ...Kh7.} 38. Bxh6 $1 Re7 ({But not} 38... Qf3 $2 39. Rxg7+ Kh8 40. Qh4 $18 (40. Rg3 Qe4 $16)) 39. Bxg7 {Accuracy: White = 96%, Black = 91%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.27"]
[White "Sindarov, Javokhir"]
[Black "Praggnanandhaa R"]
[Result "1/2-1/2"]
[ECO "B33"]
[WhiteElo "2537"]
[BlackElo "2602"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,76,27,7,2,0,13,16,8,0,0,0,12,0,5,0,0,-45,-28,-40,-33,-35,-30,-47,-59,-49,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,176,169,223,-504,-500,-432,-404,-337,0,0,0,0,0,0,0]} 1. e4 c5 2. Nc3 Nc6 3. Nge2 Nf6 4. d4 cxd4 5. Nxd4 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c4 b4 {B33: Sicilian: Pelikan and Sveshnikov Variations.} 12. Nc2 O-O 13. g3 a5 {[%cal Ba6a5,Ba5a4][%mdl 32]} 14. h4 Be6 15. Bh3 g6 16. Kf1 h5 {[#]} 17. Nxf6+ $146 ({Predecessor:} 17. Kg2 Bg7 18. Qd3 Ra7 19. b3 Qd7 20. Rad1 Qb7 21. Nde3 a4 22. Rhe1 Ra6 23. Nd5 {½-½ (36) Podvoysky,E (2269)-Sergeev,V (2419) ICCF email 2010}) 17... Qxf6 18. b3 a4 19. Kg2 $1 Nd4 20. Nxd4 exd4 21. Rc1 axb3 22. axb3 Ra2 {[%csl Ga2][%cal Rf6f2]} 23. Rc2 Rfa8 24. Bxe6 fxe6 25. Rf1 e5 26. Rxa2 Rxa2 $11 {[%mdl 4096] Endgame KQR-KQR} 27. Qe1 g5 28. hxg5 Qxg5 {aiming for ...h4.} 29. Qxb4 h4 30. Qb8+ Kh7 31. Qc7+ Kh6 $2 (31... Kg8 $11 {and Black has nothing to worry.}) 32. Qxd6+ $18 Kh5 (32... Kh7 {keeps fighting.} 33. Qd7+ Kg6) 33. Kg1 $4 {[%mdl 8192]} (33. Kh1 $1 $18 {was the only winning move. Threatens to win with g4+!} Ra7 34. g4+ $1 {[%mdl 576] Deflection} Qxg4 35. Qxe5+ Kh6 36. Qh8+ Rh7 37. Qf6+ Qg6 38. Qxd4) 33... hxg3 $19 34. f4 exf4 35. Qxd4 {[#]} Re2 $2 (35... Ra8 $1 $19 36. b4 Rd8) 36. Qh8+ $11 {The position is equal.} Kg4 {( -> ...Qc5+)} 37. Qc8+ Kh4 {White must now prevent ...Qf6.} 38. Qh8+ Kg4 {Accuracy: White = 82%, Black = 80%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.28"]
[White "Sadhwani, Raunak"]
[Black "Basso, Pier Luigi"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "2522"]
[BlackElo "2600"]
[Annotator "TA"]
[PlyCount "153"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,153,-13,10,-9,-5,-12,-10,-36,-47,-35,-42,-55,-59,-58,-14,-79,-63,-110,-115,-143,-91,-121,-111,-171,-121,-152,-168,-185,-168,-164,-152,-199,-204,-241,-229,-239,-130,-250,-241,-242,-241,-236,-235,-283,-281,-321,0,0,0,0,33,16,44,123,189,49,111,59,52,41,41,-14,-17,-25,18,18,67,67,67,83,82,29,25,21,28,23,56,42,56,56,56,56,47,8,8,8,8,8,8,8,25,8,8,8,8,8,8,8,80,8,8,8,8,8,8,8,85,85,220,75,77,79,79,91,139,139,147,140,29959,29961,29967,29959,29967,29968,29969,29970,29970,0,0,0,29970,29971,29972,29973,29973,29974,29974,29975,29977,29978,29978,29979,29981,29982,29982,29983]} 1. f4 d5 2. Nf3 g6 3. g3 Bg7 4. Bg2 Nh6 5. O-O Nf5 6. e3 {A03: Bird's Opening with 1...d5.} c6 {[#]} 7. Qe1 $146 ({Predecessor:} 7. d4 Nd7 8. Ne5 Nf6 9. b3 O-O 10. c4 dxc4 11. bxc4 c5 12. g4 Nh4 13. Bh1 cxd4 14. exd4 Nxg4 {0-1 (34) Mrsevic,M (2315)-Popovic,M (2396) Sombor 2009}) 7... h5 8. d3 {The position is equal.} h4 9. g4 h3 10. Bh1 Nh6 $36 {[%mdl 2048] Black has good play.} 11. g5 Nf5 12. d4 (12. Nc3 $11 {keeps the balance.}) 12... Nd6 13. Nbd2 Bf5 14. Qd1 f6 (14... Na6 $142 15. Ne1 f6) 15. b3 Na6 {[%cal Bb8a6,Ba6c5,Bc5e4][%mdl 32]} 16. a3 (16. Ba3 $17) 16... Nf7 17. Re1 fxg5 18. Nf1 gxf4 19. exf4 {[#]} Nc5 $1 {[%mdl 512]} 20. Ng3 (20. dxc5 Bxa1) 20... Ne4 21. Nxe4 dxe4 (21... Bxe4 22. Ne5 $17) 22. Ne5 c5 (22... Rh4 $19 {Threatens to win with ...g5!} 23. Be3 g5 $1 {[%mdl 512]} 24. Nxf7 Kxf7 25. fxg5 Rg4+ 26. Kf1 e5 27. dxe5 Bxe5) 23. Bb2 (23. Bxe4 $17 {was worth a try.} Nxe5 24. fxe5) 23... Rh4 $19 24. Bxe4 Bxe4 25. Rxe4 Qd5 26. Qe2 Bxe5 $1 27. c4 {[#]} Qc6 $2 ({Weaker is} 27... Bxd4+ 28. Bxd4 Qd6 29. Bf2 $15) ({Black should try} 27... Rg4+ $1 $19 {[%mdl 512]} 28. Kh1 (28. Qxg4 Qxe4) 28... Qe6) 28. d5 $11 Qf6 $1 29. Bxe5 Qf5 30. Bc3 Kf8 {Strongly threatening ...Rg4+.} 31. Kh1 Rg4 (31... b5 $16) 32. Rg1 (32. Rxe7 $18 {Hoping for Re1.} Rxf4 33. Re1 (33. Rxb7 $2 Re8 $19)) 32... Rxg1+ $14 33. Kxg1 Re8 34. Re3 b5 35. Be5 (35. cxb5 $14 Qxf4 36. Rxh3) 35... bxc4 $11 36. bxc4 Kg8 37. Qd3 Nxe5 38. Qxf5 Nf3+ 39. Rxf3 gxf5 40. Rxh3 $14 {[%mdl 4096] Endgame KR-KR} ({White should play} 40. Rg3+ $16 Kf7 41. Rxh3) 40... Rb8 $1 $11 41. Re3 Kf7 42. Re5 Rb1+ 43. Kf2 Rc1 44. Rxf5+ Kg6 45. Re5 Rxc4 46. Rxe7 Rxf4+ 47. Ke3 Rd4 48. Rxa7 Rxd5 49. Ra4 Rd1 50. h4 Kf5 51. Rc4 Rh1 52. a4 {[%cal Ba3a4,Ba4a5,Ba5a6,Ba6a7][%mdl 32]} Ke6 53. a5 {And now Ra4 would win.} Kd7 $1 54. Ra4 ({Don't play} 54. Rxc5 Rxh4 55. Rg5 Kc6 $11) (54. Rg4 $16) 54... Kc7 55. a6 {a7 is the strong threat.} Kb8 56. a7+ Ka8 57. Kf3 Rc1 (57... Re1 $1 $11) 58. Ke4 $1 $16 Rd1 (58... Rf1 $16 {was called for.} 59. Rc4 Kxa7) 59. Ke5 (59. Rc4 $1 $18 {is the precise move to win.}) 59... Rd8 60. Rc4 $1 {[%cal Rc4c5]} Rh8 {[#]} 61. Kd6 $1 Rh5 62. Ra4 Rf5 {[#]} 63. Kc6 $1 c4 $2 {[%mdl 8192]} (63... Re5 $16 64. Kd7 Rd5+ 65. Kc7 Re5) 64. Rxc4 Kxa7 65. Rb4 Re5 66. Rb5 Re1 67. h5 Ka6 68. Rb6+ $2 (68. Rf5 {mates} Rh1 69. Kd6 Re1 70. Re5 Rf1 71. Ke6 Kb7 72. Rf5 Rh1 73. Kf7) 68... Ka5 $11 {( -> ...Re6+)} 69. Rb5+ $2 {[%mdl 8192]} (69. Rb2 $11 Rc1+ 70. Kd5) 69... Ka6 $1 70. Rg5 {White mates.} Rc1+ 71. Kd7 Kb7 72. h6 Rc7+ 73. Ke8 Kc6 74. Rh5 Rh7 75. Kf8 Kd6 76. Kg8 Re7 77. h7 {Quite a comeback for White. Accuracy: White = 67%, Black = 71%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.29"]
[White "Puranik, Abhimanyu"]
[Black "Zanan, Evgeny"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2597"]
[BlackElo "2500"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,90,14,23,36,12,14,18,31,11,44,41,31,37,41,28,48,35,47,40,75,0,0,0,0,0,0,-8,-4,-57,0,-367,-355,-368,-368,-647,-646,-616,-619,-612,-572,-562,-522,-459,-204,-196,-200,-197,-191,-216,-227,-212,-84,-270,-263,-400,-363,-391,-280,-291,-292,-282,-277,-243,-201,-181,-135,-162,-164,-182,-182,-175,-129,-112,-68,-68,-68,-68,-68,-68,-69]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e6 7. g4 Nfd7 {B81: Sicilian Scheveningen: Keres Attack.} 8. Be3 b5 9. a3 Bb7 {The position is equal.} 10. g5 Be7 11. h4 Nc6 12. Qd2 Rc8 13. Nxc6 Rxc6 {13...Bxc6 might become the main line.} 14. O-O-O O-O 15. Kb1 {[#]} Qc7 $146 {[#]} ({Predecessor:} 15... Ne5 16. Rh3 Nc4 17. Qe1 Nxe3 18. Rxe3 Qc8 19. f4 Bd8 20. f5 Ba5 21. b4 Bb6 {1-0 (38) Nepomniachtchi,I (2703)-Grischuk,A (2752) Sochi 2016}) 16. f3 ({Better is} 16. Bd4 $1 $16) 16... Ne5 $11 17. Rh3 Rc8 18. h5 Nc4 19. Bxc4 $1 Rxc4 20. g6 (20. h6 $11 g6 21. Rh2) 20... Bf6 ({Black should play} 20... b4 $1 $15 21. axb4 Rxb4) 21. Qxd6 $2 {[%mdl 8192] [#]} (21. gxf7+ $11 {and White is okay.} Kxf7 22. h6) 21... Rxc3 $1 $19 {[%mdl 64] Double Attack} 22. gxf7+ Kxf7 23. bxc3 $2 (23. Qxc7+ R3xc7 24. Rh2) 23... Qxc3 {[%csl Gc8][%cal Rc3c2][%mdl 64] Double Attack} 24. Qd7+ {[#]} Kg8 $1 {[%csl Gc8][%cal Rc3c2][%mdl 512]} 25. Qxe6+ {[#]} Kh8 $1 {[%csl Gc8][%cal Rc3c2][%mdl 512]} 26. Qa2 Qxe3 27. Qb3 Qxb3+ (27... Qc5 $142 {...Qe5 is the strong threat.} 28. h6 g5) 28. cxb3 h6 29. Rd7 Bc6 30. Ra7 {[#]} b4 $1 {[%mdl 512]} 31. a4 (31. axb4 Bd4) 31... Be8 (31... Kh7 $19 {has better winning chances.} 32. Rg3 Be5) 32. Rh1 $2 (32. f4 $17 {is a better defense.}) 32... Bc3 33. Rh2 (33. f4 {keeps fighting.}) 33... Kg8 34. f4 Bc6 35. Re2 Re8 36. e5 Bf3 37. Re3 Bd4 38. Rxg7+ Kxg7 39. Rxf3 {[%mdl 4096] Endgame KRB-KR} Rf8 40. Kc2 Kh7 41. e6 Kg7 42. Kd3 Bc3 {Strongly threatening ...Rf5.} 43. Rg3+ $1 {Black is slightly better.} Kf6 44. Rg6+ $1 Ke7 {Threatens to win with ...Rf5.} 45. Ke4 Rf6 $1 {Accuracy: White = 69%, Black = 71%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.30"]
[White "Sargsyan, Shant"]
[Black "Pranesh M"]
[Result "1-0"]
[ECO "C58"]
[WhiteElo "2594"]
[BlackElo "2425"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,78,40,23,28,25,28,35,32,22,12,10,18,12,16,6,22,22,37,39,39,41,79,104,104,62,72,68,74,81,130,135,145,140,129,105,122,124,230,230,250,195,285,251,465,456,633,635,626,619,660,668,661,454,972,820,801,792,789,774,757,747,866,860,4918,1231,29999]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Bd3 Nd5 {C58: Two Knights: 4 Ng5 d5 5 exd5 Na5 sidelines.} 9. Nf3 Bd6 10. O-O Nf4 {White is slightly better.} 11. Nc3 Nxd3 12. cxd3 O-O 13. b3 $5 {[%mdl 4] Exploring less charted territory.} Re8 14. Re1 c5 15. Ba3 {[#]} Nb7 $146 ({Predecessor:} 15... Ba6 16. Qc2 Rc8 17. Ne4 Bf8 18. Nxc5 Qd5 19. Rac1 Bxc5 20. Bxc5 Bxd3 21. Qc3 Nc6 {½-½ (68) Varga,Z (2460)-Pacher,M (2471) Heviz 2015}) 16. Rc1 Qa5 17. Bb2 Bg4 18. h3 Bh5 19. Ne4 f6 $1 20. Bc3 $36 {[%mdl 2048] White fights for an advantage.} Qa6 21. g4 (21. Nxd6 Nxd6 22. b4 cxb4 $15) 21... Bf7 22. g5 Be7 23. gxf6 Bxf6 24. Nxf6+ gxf6 25. Nh4 Kh8 {[#]} (25... Rad8 $16) 26. f4 $1 $18 {[%mdl 512]} Rad8 (26... exf4 $2 27. Qf3 $18) 27. Re3 {[%cal Rf4e5]} Rg8+ (27... Rxd3 {might work better.} 28. Qf1 e4) 28. Kf2 Nd6 $2 ({But not} 28... exf4 29. Re7 $18) (28... Rxd3 29. Rxd3 Qxd3) 29. fxe5 {aiming for e6.} Nb5 30. e6 Nxc3 31. Qf3 Nd5 32. exf7 Rgf8 33. Rg1 {White wants to mate with Qg2!} f5 {[#]} ({Much worse is} 33... Nxe3 {[#]} 34. Qh5 $1 {[%mdl 512]}) (33... Qb7 $142 34. Qh5 Qxf7 35. Ng6+ Qxg6 {[%mdl 64] Decoy} 36. Rxg6 Nf4) 34. Qxd5 $3 {[%mdl 512] Intending Qe5+ and mate.} Qf6 (34... Rxd5 35. Re8) 35. Qe5 {[%cal Re5f6]} Rxf7 36. Qxf6+ Rxf6 37. Nf3 f4 38. Re7 a6 39. Rgg7 Rg8 40. Rxh7# {Accuracy: White = 85%, Black = 59%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.31"]
[White "Aditya Mittal"]
[Black "Wagner, Dennis"]
[Result "1/2-1/2"]
[ECO "E20"]
[WhiteElo "2427"]
[BlackElo "2590"]
[Annotator "TA"]
[PlyCount "109"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,109,-6,0,1,4,0,0,0,0,0,6,23,17,10,27,0,0,-4,-9,-20,-16,-16,0,0,-11,-29,-29,-29,-29,-27,-29,-33,-7,-11,0,-39,-35,-25,-39,-32,-35,-33,-29,-36,-36,-36,-36,-37,-37,-37,-37,-38,-41,-41,-41,-41,-37,-44,-35,-36,-30,-34,-25,-28,-27,-33,-9,-14,-9,-38,-34,-36,-36,-38,-32,-38,-38,-40,-22,-42,-42,-42,-42,-42,-42,-42,-42,-42,-42,-49,-49,-49,-49,-49,-42,-42,-30,-41,-29,-29,-29,-49]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 c5 5. d5 b5 6. e4 {E20: Nimzo-Indian: 4 g3 and 4 f3.} d6 {6...0-0 is the recent fashion. Played by Magnus Carlsen in October 2019.} 7. Bd3 O-O 8. Nge2 {The position is equal.} bxc4 9. Bxc4 exd5 10. Bxd5 Nxd5 11. Qxd5 Be6 12. Qd1 d5 13. exd5 Bxd5 {[#]} 14. a3 $146 ({Predecessor:} 14. Kf2 Bc6 15. Bf4 Nd7 16. Nd5 Ba5 17. Rc1 Re8 18. Ne3 Qf6 19. Rc2 Bb6 20. Qc1 c4 21. Kf1 Bxf3 {0-1 (21) Nechaeva,M (2374)-Kotsur,P (2528) Cheliabinsk 2019}) 14... Bxc3+ 15. Nxc3 Qh4+ 16. g3 Qe7+ 17. Qe2 Be6 18. O-O Nc6 19. Be3 Rfe8 20. Qf2 c4 {With the idea ...Ne5.} 21. Bf4 Rad8 22. Rad1 Rd3 23. Ne4 Red8 24. Rxd3 cxd3 25. Qc5 Qb7 26. Nd6 Qxb2 27. Qxc6 {[#] Hoping for Qc7.} Bh3 {[%csl Gh3][%cal Rb2g2]} 28. Rf2 Qa1+ 29. Qc1 Qxc1+ 30. Bxc1 {Strongly threatening Rb2.} Rxd6 $15 {[%mdl 4096] Endgame KRB-KRB} 31. Rb2 {[#] Threatening mate with Rb8+.} h5 32. Kf2 a6 33. Be3 Rc6 34. Bd2 f6 35. Rb4 Bf5 36. Rf4 Rc5 37. Ra4 Rc2 38. Ke3 Rc6 39. Kf2 Kf7 40. Ra5 Kg6 41. Rd5 Rb6 42. h4 Re6 {Threatens to win with ...Re2+.} 43. Be3 Re5 44. Rxe5 fxe5 $11 {KB-KB} 45. Bd2 Kf6 46. Bc3 Ke6 47. Ke3 Kd5 48. Kd2 g6 49. Bb2 e4 50. fxe4+ Kxe4 51. Bf6 Kf3 52. Be5 Kg4 53. Bf4 g5 54. Bxg5 Kxg3 55. Be7 {Accuracy: White = 92%, Black = 97%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.32"]
[White "Kardashevskiy, Evgeny"]
[Black "Ivic, Velimir"]
[Result "1-0"]
[ECO "E62"]
[WhiteElo "2437"]
[BlackElo "2558"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,94,17,30,24,43,41,40,29,38,24,25,37,32,24,46,48,45,55,42,60,151,140,186,183,303,186,156,164,171,180,147,105,163,158,158,127,113,60,224,237,233,230,243,172,170,173,171,182,175,176,182,174,144,147,184,162,257,264,427,427,406,412,466,454,408,412,456,257,257,257,257,257,257,239,379,370,342,308,1589,588,962]} 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O c6 7. Nc3 Bf5 8. Ne1 Be6 9. d5 {E62: King's Indian: Fianchetto: 6...c6 and Panno Variation (6...Nc6) without ...a6.} cxd5 10. cxd5 Bd7 11. Nd3 {White is slightly better.} Na6 12. h3 {was the old line (12.e4).} Qc8 13. Kh2 b5 14. a3 {[#]} Qb7 $146 ({Predecessor:} 14... Nc5 15. Nxc5 Qxc5 16. e4 b4 17. axb4 Qxb4 18. Re1 Rfc8 19. Ra3 a5 20. f4 Be8 {0-1 (75) Mason,I (2286)-Borisovs,L (2210) ICCF email 2017}) 15. e4 b4 16. axb4 Nxb4 17. e5 dxe5 (17... Nh5 $14) 18. Nxe5 $16 {Black must now prevent d6.} Rad8 19. Qb3 a5 (19... Rb8 $142 20. Bf4 Qb6 21. Nxd7 {[%mdl 64] Discovered Attack} Nxd7) 20. Rxa5 Qc7 21. Qxb4 Qxe5 22. Bf4 Qh5 23. f3 $36 {[%mdl 2048] Hoping for d6. White is on the roll.} g5 {[#]} (23... Rfe8 $16 24. Re1 g5) 24. d6 $1 $18 Rb8 25. Qa3 e5 26. Bxe5 ({Better is} 26. Rxe5 $16 h6 27. Be3) 26... Rfe8 $2 {Loses the game.} (26... Bxh3 $1 $14 27. Bxh3 g4 {[%mdl 64] Pin}) 27. Bxf6 Bxf6 28. Ne4 Qh6 29. Nxf6+ Qxf6 30. Qc3 Qxc3 31. bxc3 Re2 32. Rxg5+ Kf8 33. g4 Rbb2 34. Rg1 Red2 35. Kg3 f5 (35... Rbc2 $142 36. Rc5 Rxd6) 36. Bf1 Rb1 $2 {[#]} (36... Be6 {might work better.} 37. gxf5 Bf7) 37. Rg8+ $1 {[%mdl 576] Decoy} Kxg8 38. Bc4+ {[%mdl 64] Discovered Attack} Kg7 39. Rxb1 Rxd6 {[%mdl 4096] Endgame KRB-KRB} 40. Rb7 {Bb5 is the strong threat.} Kg6 41. Bb5 (41. Kf4 $142) 41... Bxb5 42. Rxb5 fxg4 43. hxg4 {KR-KR} ({Much less strong is} 43. Kxg4 $6 Rc6 $16) 43... Rc6 44. Rb3 h5 (44... h6 {was necessary.} 45. Kf4 h5) 45. gxh5+ Kxh5 46. Kf4 Kh4 $2 (46... Kg6 47. Ke5 Rc8) 47. Ke5 Kg3 {Accuracy: White = 83%, Black = 45%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.33"]
[White "Raja Harshit"]
[Black "Chanda, Sandipan"]
[Result "1/2-1/2"]
[ECO "A90"]
[WhiteElo "2472"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,50,43,45,31,40,41,33,41,38,19,27,31,46,47,45,37,79,33,55,44,50,42,64,0,0,0,0,0,87,82,77,81,84,82,82,81,72]} 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 g6 5. Nf3 Bg7 6. O-O O-O 7. Nc3 d5 8. Bf4 c6 9. Qc1 {[#] A87: Dutch Defence: Leningrad System: 5 Nf3.} Re8 $146 ({Predecessor:} 9... Ne4 10. Be5 Nd7 11. Bxg7 Kxg7 12. b4 Qc7 13. cxd5 Nxc3 14. Qxc3 exd5 15. e3 Qd6 16. Rab1 a6 {0-1 (28) Fernandes,M (1939)-Garcia Garcia,A (2158) Coimbra 2016}) 10. Rd1 Nbd7 11. Rb1 {White is slightly better.} Ne4 12. b4 Nb6 13. Nxe4 fxe4 14. Ne5 Qe7 15. h4 Nd7 16. f3 Nxe5 17. dxe5 exf3 18. Bxf3 b5 19. c5 (19. cxd5 $14 cxd5 20. Qc5) 19... a5 $11 20. a3 Rf8 21. Qe3 a4 (21... axb4 $11 22. axb4 Ra4) 22. Kg2 {White is better.} Qc7 23. Bg4 Bd7 24. Rf1 Rf7 25. Rf3 Raf8 {Accuracy: White = 88%, Black = 88%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.34"]
[White "Mendonca, Leon Luke"]
[Black "Kunin, Vitaly"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2418"]
[BlackElo "2550"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,68,-2,19,6,12,0,0,0,31,0,18,4,21,0,0,0,6,0,8,-10,0,-10,0,-22,48,26,27,0,0,-100,-98,-101,-68,-158,-161,-156,-157,-166,-141,-154,-154,-158,-160,-158,-140,-180,-179,-333,-310,-304,-180,-345,-154,-143,-133,-352,-365,-2037,-1983,-1859,-1783]} 1. d4 d5 2. Bf4 c5 3. e3 cxd4 4. exd4 Nc6 5. c3 f6 6. Nf3 {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack.} g5 7. Bg3 (7. Nxg5 fxg5 8. Qh5+ Kd7 $17) 7... Bg7 {[#]} 8. h3 $146 {The position is equal.} ({Predecessor:} 8. Na3 a6 9. Nd2 Nh6 10. Bd3 e5 11. dxe5 fxe5 12. Qh5+ Nf7 13. h4 e4 14. Bc2 {0-1 (70) Agrest,E (2580)-Beerdsen,T (2460) Porto Carras 2018}) 8... Bf5 9. Bd3 e6 10. O-O Nge7 11. c4 Qd7 12. Nc3 O-O 13. Re1 Rad8 14. Na4 b6 15. cxd5 Nxd5 16. Nc3 Nce7 ({Better is} 16... Ncb4 $11 17. Bb1 (17. Bxf5 exf5 18. a3 Nc6 $11) 17... Bxb1 18. Rxb1 Rfe8) 17. Bf1 h5 18. Rc1 Bh6 19. Nd2 (19. Ra1 $11) 19... g4 $17 20. hxg4 hxg4 21. Nde4 (21. Nce4 $15) 21... Bxc1 22. Qxc1 Nxc3 23. bxc3 Qc6 $1 24. Bd3 {[#]} Ng6 $1 25. Qh6 {[#] White wants to play Nc5!} Rd7 $1 26. Qe3 Kg7 27. a4 Qxa4 28. Nd6 $2 (28. Qe2 Qa5 29. Nd6 Bxd3 30. Qxd3) 28... Bxd3 $19 29. Qxd3 Qa5 (29... f5 $142 {White must now prevent ...f4.} 30. f3 gxf3 31. gxf3 Qb3) 30. Qe2 $2 (30. Rxe6 Qa1+ 31. Qf1 Qxf1+ 32. Kxf1) 30... Rh8 ({Not} 30... Qxc3 31. Qxe6 Kh8 32. Nf5 $15) (30... f5 $19 {Strongly threatening ...f4.} 31. Nc4 (31. Qxe6 $2 Re7 $19) 31... Qb5) 31. Qxg4 $17 Re7 ({And not} 31... Qxc3 32. Qxe6 Rxd6 33. Bxd6 $14) 32. Qe4 $2 (32. f3 $17 {might work better.}) 32... Qxc3 $19 33. d5 $2 (33. Rf1) 33... exd5 {[%mdl 64] Pin} 34. Nf5+ {[#]} Kf8 $1 {Accuracy: White = 48%, Black = 69%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.35"]
[White "Sengupta, Deep"]
[Black "Kozionov, Kirill"]
[Result "1-0"]
[ECO "A49"]
[WhiteElo "2534"]
[BlackElo "2466"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,81,20,21,13,44,32,31,10,35,0,0,0,0,0,4,0,6,-13,0,-9,14,0,0,9,2,12,11,9,21,0,19,4,0,-4,-4,-28,14,14,16,11,18,12,11,11,27,28,25,39,72,42,188,177,206,125,128,122,125,116,174,154,227,227,366,227,220,159,29970,29971,29988,1070]} 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. a4 Nbd7 7. a5 c6 8. Re1 {A49: 1 d4 Nf6 2 Nf3 g6 3 g3: Anti-King's Indian systems.} Qc7 9. e4 e5 10. Nc3 {White is slightly better.} Rb8 11. dxe5 dxe5 12. Be3 b5 13. axb6 axb6 {[#]} 14. Nd2 $146 ({Predecessor:} 14. Qd2 b5 15. b4 Rd8 16. Red1 Bf8 17. Nxe5 Bxb4 18. Bf4 Nh5 19. Nxd7 Nxf4 20. Nf6+ {1-0 (31) Saeed,I (2312)-Perez Ponsa,F (2585) Doha 2016}) 14... Rd8 15. b4 Nf8 16. b5 Bb7 17. Ra7 Ra8 18. Rxa8 Bxa8 19. bxc6 Bxc6 20. Qb1 b5 21. Bg5 Rc8 22. Bxf6 Bxf6 23. Nf1 Qa5 24. Bh3 (24. Nd5 {is interesting.} Bxd5 25. exd5 Rxc2 26. Qxc2 Qxe1 27. Qc6) 24... Bd7 (24... Rd8 {with more complications.} 25. Qa1 Qb4 26. Rb1 Qc5 27. Ne3 Bg5) 25. Bxd7 $1 Rxc3 26. Bxb5 Rxc2 27. Qxc2 Qxe1 28. Bc4 Kg7 29. Qa2 {[#] Threatens to win with Qa7.} Qxe4 30. Bxf7 Bg5 31. h4 Bh6 (31... Bd8 $14) 32. Bd5 $18 Qf5 33. Qc4 {g4 is the strong threat.} Qd7 34. Nh2 $36 {[%mdl 2048] White is on the roll.} Kh8 35. Nf3 Qd6 (35... Bg7 $16 {keeps fighting.} 36. Ng5 Bf6) 36. Qa2 Kg7 (36... Nd7 $16 37. Qa8+ Qf8) 37. Qa8 Qe7 (37... Bc1 $142 38. Bc4 Ba3 39. Qb7+ Qd7) 38. Kg2 Bc1 39. Qa1 Bh6 $2 {[#]} (39... Ba3 $16 40. Nxe5 Qf6) 40. Nxe5 Qf6 41. f4 {Accuracy: White = 77%, Black = 60%.} (41. Qa7+ $142 Kh8 42. Nf7+ Kg8 43. Nxh6+ {[%mdl 64] Discovered Attack (Double check)} Kh8 44. Nf7+ Kg7 45. Nd6+ Kh6 46. Qe3+ g5 47. hxg5+ Kg7 48. gxf6+ Kxf6 49. f4 h5 50. Qe5+ {[%mdl 64] Double Attack} Kg6 51. Be4+ Kh6 52. Qg5#) 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.36"]
[White "Buksa, Nataliya"]
[Black "Iljiushenok, Ilia"]
[Result "1/2-1/2"]
[ECO "C07"]
[WhiteElo "2403"]
[BlackElo "2519"]
[Annotator "TA"]
[PlyCount "106"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,106,9,12,6,16,22,12,10,18,0,0,-4,0,8,4,17,18,13,17,-10,-8,-10,28,10,27,5,27,0,13,0,24,20,25,21,18,10,20,22,21,3,26,0,0,0,29,0,0,0,0,0,0,0,0,0,0,0,0,0,-1,-8,-8,-19,-19,-10,-12,-12,-12,-12,-10,-32,-8,-8,-8,-16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 cxd4 5. Nxd4 Nf6 6. exd5 Qxd5 7. Nb5 {[#] aiming for Nc7+. C07: French Tarrasch: 3...c5, 4 Ngf3 and 4 exd5 Qxd5.} Na6 {[%cal Bb8a6,Ba6c7,Bc7d5,Bd5c3][%mdl 32]} 8. Nc3 Qd6 9. a3 {9.Bc4 is not played anymore.} Bd7 10. Qf3 Bc6 11. Qg3 Qxg3 12. hxg3 Nc7 13. Nc4 Ncd5 14. Bd2 {[#]} Bc5 $146 ({Predecessor:} 14... Nxc3 15. Bxc3 Ne4 16. Bd4 Bc5 17. Bxc5 Nxc5 18. b4 Ne4 19. Bd3 Nf6 20. f3 Ke7 {1-0 (38) Bok,B (2591)-Fridman,D (2627) Rosmalen 2014}) 15. Ne5 Nxc3 $1 16. Bxc3 Bd5 17. f3 Ke7 18. Bd3 Rac8 19. Ke2 h6 20. Rh4 b6 21. Ng4 Ne8 22. Ne3 Bc6 23. Bb4 Nf6 24. Bxc5+ bxc5 25. b4 Rb8 26. bxc5 Rhc8 27. Rb4 a5 28. Rxb8 Rxb8 29. Nc4 Rb5 30. Ne5 Rxc5 31. Nxc6+ Rxc6 $11 {[%mdl 4096] Endgame KRB-KRN} 32. Rb1 Nd5 {[#] Hoping for ...Nc3+.} 33. Rb7+ Rc7 34. Rb8 Rc3 35. Rb3 Kd6 36. Kd2 Rxb3 37. cxb3 {KB-KN} Kc5 38. Be4 Nc7 39. Bd3 Kd4 40. Bc4 f6 41. g4 {The position is equal.} e5 42. g3 g5 43. Be2 Nd5 44. Bf1 Ne3 45. Be2 Nd5 46. Bf1 Ne7 47. Bd3 Nc6 48. Be4 Nd8 49. Bd3 Nb7 50. Be4 Nc5 51. Bc2 Ne6 52. Bf5 Nc7 53. Bd3 Nd5 {Not much happened in this game. Accuracy: White = 90%, Black = 95%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.37"]
[White "Stupak, Kirill"]
[Black "Zarubitski, Viachaslau"]
[Result "1/2-1/2"]
[ECO "D15"]
[WhiteElo "2518"]
[BlackElo "2432"]
[Annotator "TA"]
[PlyCount "39"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,39,-29,-16,-33,-29,0,-8,-26,0,0,0,0,0,0,0,0,0,0,0,0,0,0,19,0,0,-30,-27,-42,-27,-29,-17,0]} 1. Nf3 Nf6 2. c4 c6 3. d4 d5 4. Nc3 dxc4 5. e4 b5 $1 6. Be2 {D15: Slav Defence: 4 Nc3 a6 and gambit lines after 4 Nc3 dxc4.} e6 7. O-O Bb7 {7...Bb7 is better than 7...Be7.} 8. b3 cxb3 9. Qxb3 Be7 {[#]} 10. e5 $146 ({Predecessor:} 10. a4 b4 11. e5 Nd5 12. Ne4 a5 13. Bg5 O-O 14. Bxe7 Qxe7 15. Nfg5 h6 16. f4 hxg5 17. fxg5 {0-1 (60) Mikaelyan,A (2476)-Andriasian,Z (2611) Yerevan 2020}) 10... Nd5 11. Ne4 h6 12. Bd2 a5 13. Ne1 Qb6 14. Nc2 Nd7 15. Qg3 g6 16. Rab1 Ba6 17. Rfc1 b4 18. Bxa6 Qxa6 19. Ne3 Nxe3 20. Qxe3 {Accuracy: White = 100%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.38"]
[White "Kulaots, Kaido"]
[Black "Sreeshwan Maralakshikari"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "2510"]
[BlackElo "2440"]
[Annotator "TA"]
[PlyCount "125"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,125,48,42,32,14,26,36,33,33,32,0,0,0,26,-21,47,47,60,41,50,48,47,22,61,61,61,61,61,53,59,61,92,92,97,79,68,85,92,83,149,59,59,59,59,59,66,10,58,58,58,58,57,0,58,58,58,57,58,60,60,60,60,60,56,60,60,60,60,57,57,54,66,57,60,64,252,122,122,122,122,122,122,122,122,122,122,108,231,241,363,363,362,354,338,328,491,492,473,431,451,445,382,338]} 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Nbd7 6. Qc2 b6 7. Bd3 Bb7 8. O-O Be7 9. Rd1 O-O 10. b3 h6 11. Bb2 Qc7 12. Rac1 Rac8 13. Qe2 Qb8 {D46: Semi-Slav: 5 e3 Nbd7 6 Bd3, Black avoids the Meran.} 14. Bb1 Rfd8 15. Ne5 Nf8 {[#] White is slightly better.} 16. f4 $146 ({Predecessor:} 16. e4 dxe4 17. Nxe4 c5 18. dxc5 bxc5 19. Nxf6+ Bxf6 20. Qe3 Rxd1+ 21. Rxd1 Rd8 22. Bc2 Rxd1+ 23. Bxd1 {½-½ (59) Girya,O (2454)-Nechaeva,M (2408) Khanty-Mansiysk 2018}) 16... c5 17. f5 cxd4 18. exd4 Re8 19. Rf1 Rcd8 (19... dxc4 $11 20. bxc4 Rcd8) 20. fxe6 $14 Nxe6 21. Nxd5 Bxd5 22. cxd5 Rxd5 23. Qc2 Nxd4 24. Bxd4 $40 {[%mdl 128] Black needs to defend precisely.} Rxe5 25. Bxe5 Qxe5 26. Qf5 Bc5+ 27. Kh1 Qb8 28. Rce1 Bd4 29. Bd3 Rxe1 30. Rxe1 g6 31. Qf3 {And now Bc4 would win.} Kg7 ({Black should play} 31... Qc7) 32. a4 (32. Re7 $16 {Hoping for Bc4.} Bc5 33. Rb7) 32... Qc7 33. Bc4 a5 34. Rf1 Qe7 35. g4 (35. Qd3 $14 Be5 36. Qe3) 35... g5 36. Kg2 Bc5 37. Qf5 Qd6 38. Qf3 Qe7 $1 39. Rd1 Bd6 40. Rd2 Bc5 41. h3 Qe1 {[%csl Gc5][%cal Re1g1]} 42. Rd1 Qe7 $1 43. Kf1 Bd6 44. Re1 Qc7 45. Re2 Bc5 46. Ke1 Qd7 47. Qd3 Qc7 48. Kd1 Qf4 49. Kc2 Qf1 $2 {[#]} ({Black should try} 49... h5 $1 $14) 50. Qg3 (50. b4 $1 $18 {[%cal Rb4c5][%mdl 512] and the rest is easy.} Bxb4 (50... axb4 51. Bxf7) 51. Bxf7 $1 {[%mdl 512]}) 50... Qa1 $16 {Strongly threatening ...Qa2+.} 51. Qe1 Qd4 52. Qh1 Qd7 53. Qf3 Qc7 54. Qf5 Bd4 55. h4 Nh7 {[#]} (55... Qg3 $16) 56. Rd2 $1 $18 {[%cal Rd2d4]} Bf6 (56... Bc5 $142 57. Kd1 Qf4 58. Qxf4 gxf4) 57. Qd7 Qxd7 58. Rxd7 gxh4 59. Rxf7+ {KRB-KBN} Kh8 (59... Kg6 {was worth a try.} 60. Rb7 Nf8 61. Rxb6 h3) 60. Bd3 Bg7 61. Rb7 h3 62. Rxb6 h2 63. Be4 {Accuracy: White = 82%, Black = 65%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.39"]
[White "Gadimbayli, Abdulla"]
[Black "Gokerkan, Cem Kaan"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "2460"]
[BlackElo "2461"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,79,11,7,0,11,10,21,20,23,10,18,16,62,57,60,54,68,1,10,11,72,37,71,60,56,78,61,58,73,59,89,80,79,85,91,93,115,109,146,135,141,130,174,184,356,355,344,342,483,481,429,272,259,262,254,191,262,258,247,243,354,354,352,358,408,408,404,397,456,456,414,380]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. O-O a6 5. Be2 Ngf6 6. d3 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} e6 {now scores much better than the old 6...g6.} 7. a4 Be7 8. a5 {The position is equal.} O-O 9. Nc3 {[#]} Nb8 $146 ({Predecessor:} 9... d5 10. exd5 Nxd5 11. Nxd5 exd5 12. d4 c4 13. b3 cxb3 14. c4 dxc4 15. Bxc4 b5 {½-½ (28) Rendle,T (2373)-Bates,R (2378) Daventry 2018}) 10. e5 Ne8 11. exd6 Nxd6 12. d4 cxd4 13. Nxd4 (13. Qxd4 $14 Nc6 14. Qf4) 13... e5 $11 14. Nb3 Nc6 (14... Bf5 $11) 15. Nd5 Be6 16. Nb6 Nxa5 17. Nxa8 Nxb3 18. cxb3 Qxa8 19. Bg5 f6 {White stays focused until the end.} 20. Be3 Rd8 21. Bb6 Rd7 {[#] And now ...Nc8 would win.} 22. Rc1 Bd8 23. Bc5 Be7 24. Bxd6 Rxd6 25. Qc2 Rd4 26. Rfd1 {[#] Strongly threatening Rxd4.} Rf4 $2 (26... Qd8 {might work better.} 27. Bc4 Rxd1+ 28. Rxd1 Qc8 29. Bxe6+ Qxe6) 27. Qc7 $18 Kf8 28. Bc4 Bg4 (28... Qc8 $142 29. Bxe6 Qxe6 30. Qxb7 Rd4) 29. f3 Bf5 30. Rd2 b5 31. Bd5 Qd8 32. Qxd8+ Bxd8 33. Rc6 Ba5 34. Rd1 Rd4 (34... Bb4 $142 35. Kf2 (35. Rxa6 Rd4 $18) 35... Rh4) 35. Rxd4 exd4 36. Be4 ({Less strong is} 36. Rxa6 d3 $18) 36... Bxe4 37. fxe4 Bd2 38. Rxa6 Bc1 39. Rb6 Ke7 40. Kf1 {Accuracy: White = 83%, Black = 51%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.40"]
[White "Can, Emre"]
[Black "Radovanovic, Mihajlo"]
[Result "0-1"]
[ECO "E94"]
[WhiteElo "2600"]
[BlackElo "2458"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,88,68,45,44,52,64,56,92,82,87,79,79,79,82,78,88,72,79,65,75,42,51,18,16,18,29,0,0,-1,0,-6,-2,-2,-2,-2,22,22,14,0,-2,-2,41,0,35,0,0,0,0,-25,-28,-29,-29,-231,-222,-324,-324,-306,-312,-305,-298,-568,-562,-817,-809,-1202,-1197,-1203,-874,-2595,-1200,-2595,-2485,-29983,-5489]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O Na6 8. Be3 c6 {now supersedes 8...Ng4.} 9. Re1 Re8 {E94: King's Indian: Classical: 6 Be2 e5 7 0-0: Various Black 7th moves.} 10. d5 Ng4 11. Bc1 {[#]} c5 $146 {White is slightly better.} ({Predecessor:} 11... f5 12. exf5 gxf5 13. Ng5 Nf6 14. c5 h6 15. Bxa6 bxa6 16. dxc6 d5 17. c7 Qd7 {½-½ (27) Gelfand,B (2747)-Ding,L (2755) Tsaghkadzor 2015}) 12. h3 Nh6 13. Bd3 f6 14. a3 Nf7 15. Qc2 Bd7 16. Bd2 Rf8 17. Rab1 Qc8 18. Nb5 Nc7 19. b4 Nxb5 20. cxb5 cxb4 21. Qb3 bxa3 22. Qxa3 f5 23. Rec1 Qd8 24. Ba5 b6 25. Bd2 f4 26. Be2 Bf6 27. Rc2 Qb8 28. Ne1 h5 29. Nd3 {[%mdl 1024] White has compensation.} Qe8 30. Qa6 Bc8 31. Qa1 Bh4 32. Nb4 Ng5 $36 {[%mdl 2048] Black fights for an advantage.} 33. f3 Qe7 34. Kf1 $2 {This move loses the game for White.} (34. Nc6 $11 {and White has nothing to worry.} Nxh3+ 35. gxh3 Bf2+ {[%mdl 64] Decoy} 36. Kxf2 Qh4+ {[%mdl 64] Double Attack} 37. Kg1 Bxh3 38. Bf1 Qg3+ {[%mdl 64] Double Attack} 39. Kh1 Qxf3+ 40. Kg1 Qg4+ 41. Kh2 Bxf1 42. Rxf1 Qh4+ 43. Kg1 Qg3+ 44. Kh1 Qh4+ 45. Kg1 Qg3+ 46. Kh1 Qh4+ 47. Kg1) 34... Bxh3 $1 $19 35. Be1 {[#]} (35. Qc3 $142 Qd7 36. Be1 Bxe1 37. Rxe1) 35... Nxe4 $1 {[%mdl 512]} 36. gxh3 {[#]} (36. fxe4 Bxg2+) 36... Qd7 $1 {[%cal Rd7h3]} 37. Kg1 Qxh3 {Strongly threatening ...Bxe1.} 38. Bf1 $2 (38. Bxh4 Qxh4 39. Bd3 Qg3+ 40. Rg2 Qxf3 41. Rf1 Qe3+ 42. Kh2) 38... Qxf3 39. Bxh4 Qg4+ {[%mdl 64] Double Attack} 40. Rg2 Qxh4 41. Rbb2 Ng3 {And now ...Qh1+ would win.} 42. Qe1 Qh1+ 43. Kf2 e4 44. Nc2 Rae8 {Accuracy: White = 57%, Black = 88%.} (44... e3+ $142 45. Nxe3 {[#]} Rae8 $1 {[%mdl 576] Pin} 46. Qb1 Ne4+ 47. Qxe4 fxe3+ 48. Kxe3 Rxe4+ 49. Kxe4 Qxf1 50. Rxg6+ Kh7 51. Rg3 Qc4+ 52. Ke3 Qc3+ {[%mdl 64] Double Attack} 53. Ke2 Qxg3 54. Kd2 Rf2+ 55. Ke1 Qg1#) 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.41"]
[White "Sivuk, Vitaly"]
[Black "Pogosyan, Stefan"]
[Result "1-0"]
[ECO "E20"]
[WhiteElo "2557"]
[BlackElo "2455"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,89,0,19,41,51,52,54,49,50,50,52,41,77,76,66,67,73,65,100,106,127,129,127,127,115,113,172,175,222,213,209,220,225,213,188,134,304,231,297,231,441,364,348,339,339,339,345,258,258,258,258,254,254,254,254,254,257,258,6279,6187,6111,141,5978,5177,5958,1103,5958,5137,6370,5501,6370,6370,6110,6103,6103,6103,5057,1175]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. g3 O-O 5. Bg2 d6 6. Nf3 Nc6 7. O-O e5 (7... Bxc3 $5 8. bxc3 e5 $11) 8. Na4 {Strongly threatening a3. E20: Nimzo-Indian: 4 g3 and 4 f3.} exd4 9. a3 Bc5 10. b4 {White is slightly better.} Bb6 $1 {[#]} 11. Bb2 $5 $146 {[%mdl 8] New and interesting.} ({Predecessor:} 11. Nxb6 axb6 12. Nxd4 Nxb4 13. e4 Nc6 14. f4 Nxd4 15. Qxd4 Ra4 16. Bb2 b5 17. Rac1 {0-1 (28) Kaliuzhny,A (2238)-Zavgorodniy,S (2423) Alushta 2006}) 11... Re8 12. Re1 Bd7 13. Nxb6 axb6 14. Nxd4 Nxd4 15. Qxd4 Bc6 16. e4 b5 17. cxb5 Bxb5 18. e5 $1 {[%cal Re5f6]} dxe5 19. Qxd8 $1 Raxd8 (19... Rexd8 $16 20. Bxb7 (20. Rxe5 c6 $14) 20... Ra7) 20. Bxb7 $18 Rd2 21. Bxe5 (21. Rxe5 Ba4) 21... Ng4 22. Bf4 Rxe1+ 23. Rxe1 Ra2 24. Ba6 ({Much less strong is} 24. Bxc7 Nxf2 25. Bb6 (25. Re5 Nh3+ 26. Kh1 Nf2+ 27. Kg1 Nh3+ 28. Kh1 Nf2+ 29. Kg1 $11) 25... Nd3 $16) (24. Bd5 $18 Rc2 25. Re7 Rxf2 26. Bc4 $1 {[%mdl 576] Back Rank} (26. Bxc7 Rf1+ 27. Kg2 Rf2+ 28. Kh3 h5 $11)) 24... Ba4 $2 (24... g5 $16 {keeps fighting.}) 25. Bxc7 {And now b5 would win.} h5 26. f3 Nf2 $2 (26... Nf6 27. b5 Nd5) 27. Re2 Nh3+ 28. Kg2 Rxa3 29. b5 Ng5 30. Rb2 Bd1 {[#]} 31. Bb7 $1 {b6 is the strong threat.} Ra7 32. Bd5 Rxc7 33. b6 Rc8 34. b7 Rb8 35. Ra2 {Threatens to win with Ra8.} Bb3 $2 (35... Kh7) 36. Ra8 Bxd5 37. Rxb8+ Kh7 {[#] With the idea ...Kg6.} 38. Rh8+ $3 {[%mdl 576] Decoy, Clearance, Promotion. White is clearly winning.} Kxh8 39. b8=Q+ Kh7 40. Qe5 Bxf3+ 41. Kf2 f6 42. Qf5+ Kg8 43. Qc8+ Kh7 44. h4 Bg4 45. Qc2+ {White took control after the opening. Accuracy: White = 89%, Black = 63%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.25"]
[Round "7.42"]
[White "Lazavik, Denis"]
[Black "Kozak, Adam"]
[Result "0-1"]
[ECO "A64"]
[WhiteElo "2428"]
[BlackElo "2523"]
[Annotator "TA"]
[PlyCount "110"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,110,0,-4,0,0,0,0,4,12,8,12,7,7,10,0,-7,-15,-10,-18,-10,0,0,0,-43,0,0,0,0,0,-38,-43,-40,-24,-24,-24,-24,-23,-100,-104,-108,-112,-166,-159,-154,-166,-166,-159,-158,-222,-2007,-933,-12829,-12829,-12829,-12830,-12830,-12831,-12832,-12832,-12831,-12829,-12829,0,-7311,-894,-12837,-12838,-12838,-9029,-5651,-9016,-1566,-7154,-1737,-720,-12843,-12844,-12843,-12844,-12845,-12845,-12848,-12848]} 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. g3 Bg7 8. Bg2 O-O 9. O-O Re8 10. Nd2 a6 11. a4 Nbd7 12. h3 Rb8 13. Nc4 Ne5 14. Na3 Nh5 15. e4 Bd7 16. a5 {A64: Modern Benoni: Fianchetto Variation: 9...Nbd7 10 Nd2 a6 11 a4 Re8.} b5 {White must now prevent ...b4.} 17. axb6 $1 Bb5 ({Don't play} 17... Rxb6 $6 18. f4 $16) ({Reject} 17... Qxb6 18. g4 $14) 18. Naxb5 {The position is equal.} axb5 19. Nxb5 {Black should prevent Ra6.} Qxb6 20. Na3 {[%cal Bb5a3,Ba3c2,Bc2e3][%mdl 32]} Qb3 21. Qxb3 Rxb3 22. Nc2 Nd3 23. Ra6 {[#]} Nxc1 $146 ({Predecessor:} 23... Be5 24. Na1 Nxc1 25. Nxb3 Nxb3 26. f4 Bd4+ 27. Kh2 Rd8 28. Rf3 c4 29. Ra4 Bxb2 30. Rxc4 {0-1 (41) Wukits,R (2321)-Brunello,S (2545) Vienna 2015}) 24. Rxc1 Rxb2 25. Ne3 Bd4 {And now ...Nxg3! would win.} 26. Rc2 (26. Nc2 {feels hotter.} Bf6 27. Ne1 Bd4 28. Nc2) 26... Reb8 (26... Rb3 {keeps more tension.} 27. Kh2 Bxe3 28. fxe3 Rxe3 29. g4 Nf4) 27. Rxb2 Rxb2 28. Rxd6 Nxg3 {Threatens to win with ...Rb1+.} 29. fxg3 (29. Bf3 {is interesting.} Ne2+ 30. Bxe2 Bxe3 31. Kf1 Bd4 32. Rc6) 29... Bxe3+ $11 {[%mdl 4096] Endgame KRB-KRB} 30. Kh2 $1 Rb1 31. h4 Bg1+ 32. Kh3 Rb3 33. Rf6 {[#]} (33. Rd8+ $11 Kg7 34. d6) 33... Bd4 $1 $17 {[%cal Rd4f6] Black continues to play with concentration.} 34. Rf3 c4 {...c3 is the strong threat.} 35. Rxb3 (35. d6 $17) 35... cxb3 {KB-KB} 36. Bf1 h5 37. g4 Kg7 38. gxh5 gxh5 39. Bc4 $2 (39. Kg3) 39... b2 $19 40. Bd3 Kf6 41. Kg3 Ke5 42. Bb1 Bc5 43. Kf3 Be7 44. Kg3 Bd8 45. Bc2 Be7 46. Bb1 $1 Bf6 (46... Kd4 $142 47. Bc2 Ke5) 47. Kf3 Bxh4 48. Kg2 Kf4 49. Kh3 Be1 50. Bc2 h4 51. Bb1 Bg3 52. Bc2 Ke3 53. e5 Bxe5 54. Kxh4 Bf6+ 55. Kh5 {[#]} Kd2 $1 {Accuracy: White = 65%, Black = 91%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.1"]
[White "Adhiban, B.."]
[Black "Mamedov, Rauf"]
[Result "1/2-1/2"]
[ECO "D10"]
[WhiteElo "2654"]
[BlackElo "2643"]
[Annotator "TA"]
[PlyCount "147"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,147,19,14,16,18,17,31,22,36,36,31,19,39,22,20,12,17,4,8,10,11,4,8,0,14,14,14,14,25,15,8,2,16,10,8,0,16,0,0,0,11,10,16,19,12,11,14,0,10,17,16,0,0,0,35,34,39,0,36,36,39,39,41,35,42,0,25,25,25,29,70,56,57,8,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. cxd5 cxd5 5. Bf4 Nc6 6. e3 Bf5 7. Qb3 Na5 $1 {[%cal Ra5b3]} 8. Qa4+ {D10: Slav Defence: 3 cxd5 (without early Nf3) and 3 Nc3.} Bd7 9. Qc2 e6 10. Nf3 {[#] White is slightly better.} Ne4 $146 ({Predecessor:} 10... Nc6 11. a3 Nh5 12. Bg5 f6 13. h4 Qc7 14. g4 fxg5 15. gxh5 gxh4 16. Rg1 {½-½ (16) Dubov,D (2676)-Duda,J (2748) Hamburg 2019}) 11. Bd3 f5 12. O-O Rc8 13. Ne5 {[%cal Rd3e4]} Bb4 14. Qe2 O-O 15. Nxe4 fxe4 16. Bb5 Bxb5 17. Qxb5 Bd6 18. Rac1 a6 19. Qd7 Qxd7 20. Nxd7 Rxc1 $1 21. Rxc1 Rd8 $132 {[%mdl 2048] Black puts up resistance} 22. Bxd6 Rxd7 $11 {[%mdl 4096] Endgame KRB-KRN} 23. Rc8+ Kf7 24. Bc5 Nc6 25. f3 exf3 26. gxf3 Ne7 (26... e5 {is interesting.} 27. dxe5 Nxe5 28. Kf1 Nc6 29. Ke2 d4) 27. Bxe7 Kxe7 {KR-KR} 28. Kf2 Rd8 29. Rc1 Kd7 30. Kg3 Rf8 31. h4 Rf5 32. f4 Rf6 33. Kf3 Rf5 34. Rg1 g6 35. Rg5 Ke7 36. Rg2 Rf8 37. Rc2 Kd7 38. Kg4 a5 39. a4 h6 40. b3 b6 41. Rg2 Rf5 42. Kh3 Rf6 43. h5 gxh5 {The position is equal.} 44. Kh4 Rf8 45. Rg7+ Kd6 46. Rb7 Kc6 47. Rh7 Rg8 48. Rxh6 {[%mdl 64] [#] Double Attack} Kd7 $1 49. Rxh5 Rg1 50. Rh7+ Kd6 {White must now prevent ...Rh1+.} 51. Rh6 {Threatens to win with f5.} Ke7 52. Rh7+ Kd6 53. Rh5 (53. Rb7 {seems wilder.} Kc6 54. Rf7 Re1 55. Rf6 Kd7 56. Rf7+) 53... Ke7 54. Re5 {[#] And now f5 would win.} Kd6 55. Kh5 Rg3 56. Kh6 Rg1 57. Rg5 Re1 58. Re5 Rg1 59. Rg5 Re1 60. Rg3 Ke7 61. Kg6 Rf1 62. Rg5 Rf3 63. Re5 {f5 is the strong threat.} Rg3+ $1 64. Kh5 Kd6 65. Kh4 Rg1 66. e4 dxe4 67. Rxe4 Rg2 68. Kh5 Rg3 69. Re5 Rxb3 {Strongly threatening ...Rb4.} 70. Kg5 Rf3 71. Rb5 Kc6 72. Re5 Kd6 73. Rb5 Kc6 74. Re5 {Accuracy: White = 95%, Black = 93%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.2"]
[White "Sjugirov, Sanan"]
[Black "Paravyan, David"]
[Result "1/2-1/2"]
[ECO "C65"]
[WhiteElo "2674"]
[BlackElo "2629"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,74,17,1,0,6,28,28,39,26,28,35,37,29,55,31,39,11,25,9,49,40,106,93,131,119,119,114,109,128,115,116,104,95,98,84,100,102,108,108,95,66,78,78,75,82,93,90,86,83,75,82,69,83,103,3,109,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. c3 O-O 6. O-O d6 7. Bg5 h6 {C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5.} 8. Bh4 Bb6 9. Nbd2 g5 {White has an edge.} 10. Bg3 Nh5 11. Nc4 Ne7 12. d4 Nxg3 13. hxg3 c6 14. Ba4 {[#]} exd4 $146 ({Predecessor:} 14... Be6 15. Ne3 exd4 16. Nxd4 Bxd4 17. Qxd4 f5 18. Rad1 fxe4 19. Qxe4 Qd7 20. Bc2 Rf7 {1-0 (36) Smirin,I (2660)-Zanan,E (2257) Beersheba 2014}) 15. cxd4 Ng6 16. Bb3 g4 {[#]} (16... Be6 $14) 17. Nh2 $1 $16 Kh7 18. Nxb6 Qxb6 19. Nxg4 Bxg4 20. Qxg4 Qxd4 21. Rad1 Qb4 22. Qf5 Kg7 23. Rfe1 a5 24. e5 dxe5 25. Rxe5 {Threatens to win with Rd7!} a4 26. Re4 (26. Rd7 {seems wilder.} Nxe5 27. Qxe5+ Kg8 28. Rd4 Qxd4 29. Bxf7+ Rxf7 30. Qxd4 a3 31. b4) 26... Qb5 27. Qxb5 cxb5 28. Bd5 Rfd8 29. Red4 Rac8 30. Bxb7 Rxd4 31. Rxd4 {[%mdl 4096] Endgame KRB-KRN} Rc1+ 32. Kh2 Ne5 {[#]} 33. a3 (33. f3 $1 $16) 33... h5 (33... Rc2 $11) 34. Bf3 (34. f3 $16) 34... Nxf3+ $11 {The position is equal.} 35. gxf3 Rc2 36. Rb4 Rxf2+ 37. Kh3 Rxf3 {Accuracy: White = 82%, Black = 74%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.3"]
[White "Jumabayev, Rinat"]
[Black "Yilmaz, Mustafa"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2646"]
[BlackElo "2607"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,100,2,2,10,0,22,0,0,0,0,0,0,-3,-4,-4,0,6,12,-4,0,-10,7,-16,-13,-18,20,0,10,-30,0,-25,-14,-16,0,-13,41,36,92,81,91,86,91,88,117,125,100,119,110,74,62,68,74,77,61,68,70,50,42,55,57,22,87,72,81,52,48,30,11,0,32,0,0,-18,14,-46,0,-42,12,-66,0]} 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Be7 7. Bd3 Nbd7 8. Nge2 O-O 9. Qc2 Re8 10. O-O Nf8 11. f3 g6 12. Bh4 Ne6 {D36: Queen's Gambit Declined: Exchange Variation: Main line (5 Bg5 c6 6 Qc2).} 13. a4 {[#] 13.Kh1 gains popularity.} Nh5 $146 ({Predecessor:} 13... Bd7 14. Qd2 Ng7 15. Bf2 Bb4 16. Bh4 Be7 17. Bc2 Bf5 18. Bb3 Qb6 19. Ba2 Qd8 20. Rae1 {½-½ (48) Bucsa,I (2279)-Lundberg,C (2289) ICCF email 2017}) 14. Bf2 a5 {The position is equal.} 15. Rad1 Nc7 16. e4 Na6 17. Qd2 Nb4 18. Bb1 Be6 19. Be3 Qd7 20. Nc1 Rad8 21. Qf2 Ng7 22. N1e2 f6 23. h3 Bf7 24. g4 b6 25. Ng3 Qc8 26. Kh2 Qb8 27. Kh1 c5 28. exd5 c4 (28... f5 $11 29. Nge2 (29. dxc5 f4 $17 {[%mdl 64] Double Attack}) (29. gxf5 Bh4 $15) 29... Nxd5) 29. Nge4 Nxd5 (29... Bxd5 $14 30. Nxd5 Nxd5) 30. Nxd5 $16 Rxd5 {[#]} 31. Nc3 $1 Rd7 32. d5 Rc8 33. d6 ({Resist} 33. Bxb6 Rb7 $14) 33... Bxd6 34. Ne4 Ne8 35. Bf4 Bxf4 36. Rxd7 b5 37. axb5 Qxb5 38. Rfd1 Rb8 39. Rd8 {[#] Hoping for Nxf6+.} Be5 40. Rxb8 Qxb8 41. Nc3 Nc7 (41... Qb3 $11 42. Ba2 Qb7) 42. Ba2 Qb7 43. Qe2 Kg7 44. Rd2 Ne6 45. Qe4 Qa7 {Threatens to win with ...Ng5.} 46. h4 Nf4 47. Nd1 Qc7 48. Nc3 (48. Ne3 $11) 48... Qa7 {[%mdl 1024] Black has compensation.} 49. Nd1 Qc7 (49... Qe7 $15) 50. Nc3 ({White should play} 50. Ne3 $11) 50... Qa7 {Accuracy: White = 86%, Black = 70%.} (50... h5 $15 51. g5 f5) 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.4"]
[White "Petrosyan, Manuel"]
[Black "Aravindh, Chithambaram VR."]
[Result "1/2-1/2"]
[ECO "D26"]
[WhiteElo "2590"]
[BlackElo "2630"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,74,26,27,10,18,10,12,7,27,0,0,0,0,0,0,-2,0,-6,0,0,0,-12,2,0,0,2,1,0,0,-3,-1,-6,0,0,0,-8,0,-12,-7,-13,-6,-10,-1,-4,0,-2,0,-52,0,0,0,0,0,-1,0,0,24,8,16]} 1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. Nf3 c5 6. O-O Nc6 7. Nc3 a6 8. dxc5 Qxd1 9. Rxd1 Bxc5 10. Nd2 {10.a3 is not played anymore. D27: Queen's Gambit Accepted: Classical main line: 7 e4!? and 7 a4.} O-O 11. Nb3 Ba7 12. Be2 Ne5 {[#]} 13. Na5 $146 ({Predecessor:} 13. Bd2 Bd7 14. Na5 Rab8 15. Rac1 Rfd8 16. Be1 Bb6 17. b4 Be8 18. Rxd8 Bxd8 19. f3 {1-0 (38) Vitiugov,N (2720)-Rublevsky,S (2678) Olginka 2011}) 13... b6 14. Nc4 Nxc4 15. Bxc4 Bb7 16. a4 Rfd8 17. Bd2 Rac8 18. Be2 Bb8 19. Be1 g5 20. f3 Be5 21. Rxd8+ Rxd8 22. Rd1 Rxd1 23. Bxd1 Kf8 24. h3 h6 25. Kf1 Nd7 26. Ke2 Ke7 27. Kd2 f5 28. Kc2 Bd6 29. Be2 Nf6 30. Bd2 Bc5 31. Bd3 Nd7 32. b4 (32. e4 $11) 32... Bd6 (32... Bxb4 $15 33. Nd5+ exd5 34. Bxb4+ Ke6) 33. e4 $11 Kf6 34. exf5 exf5 35. Ne2 h5 36. Bc3+ Be5 37. Be1 Bc6 {An uneventful encounter. Accuracy: White = 92%, Black = 95%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.5"]
[White "Maghsoodloo, Parham"]
[Black "Suleymanli, Aydin"]
[Result "0-1"]
[ECO "D31"]
[WhiteElo "2674"]
[BlackElo "2474"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,54,0,0,0,10,-2,-3,-2,21,20,22,-33,-39,-26,-29,-62,-54,-66,-60,-65,-53,-62,0,0,0,0,0,-122,-120,-239,-222,-318,-330,-455,-455,-793,-767,-785,-775,-1091,-1042]} 1. c4 e6 2. Nc3 d5 3. d4 Be7 4. cxd5 exd5 5. Bf4 Nf6 6. e3 Bf5 7. Qb3 Nc6 8. Qxb7 Nb4 {aiming for ...Nc2+.} 9. Rc1 {And now a3 would win. D35: Queen's Gambit Declined: Exchange Variation.} (9. Bxc7 Qc8 $17) 9... O-O 10. Qxc7 Qxc7 11. Bxc7 {The position is equal.} Rfc8 (11... Rac8 $5 {[%cal Rc8c7]} 12. Bf4 Ne4 $11) 12. Bf4 Ne4 {[#]} 13. f3 $146 (13. a3 $11 Nxc3 14. bxc3 Nd3+ 15. Bxd3 Bxd3 16. Kd2) ({Predecessor:} 13. g4 Bxg4 14. f3 Bh4+ 15. Bg3 Nxg3 16. hxg3 Bxg3+ 17. Kd2 Bf5 18. a3 Nc6 19. Nxd5 {1-0 (35) Osmak,I (2355)-Buksa,N (2385) Zhitomir 2017}) 13... Nxc3 $15 14. bxc3 {e4 is the strong threat.} ({But not} 14. Rxc3 Nxa2 15. Rc7 Rxc7 $17) 14... g5 15. Bg3 a5 $1 ({Don't play} 15... Nxa2 $6 16. Ra1 $14) 16. a4 $1 Na2 17. Ra1 Nxc3 18. Ne2 Bb4 (18... Nxe2 $15 19. Bxe2 Rc2) 19. Kf2 $11 Bc2 $36 {[%mdl 2048] Strongly threatening ...Nd1+. White is under pressure.} 20. Nxc3 Bxc3 21. Ra2 (21. Ra3 $11) 21... Bb1 $17 22. Re2 {[#]} (22. Ra3 $17 {was the only defense.} Bb4 23. Be2) 22... Rc4 $1 $19 23. Rc2 {[#]} (23. Be5 $142) 23... Be1+ $1 {[%mdl 512]} 24. Kxe1 Rxc2 {Black is clearly winning.} 25. h4 (25. Be2 $142 Ra2 26. h4) 25... Rac8 26. Bd6 R8c3 27. hxg5 Rb2 {Accuracy: White = 33%, Black = 94%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.6"]
[White "Svane, Rasmus"]
[Black "Sarana, Alexey"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2608"]
[BlackElo "2656"]
[Annotator "TA"]
[PlyCount "33"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,33,22,18,29,14,26,13,2,0,24,19,33,34,39,34,30,31,41,25,31,31,36,32,30,17]} 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. O-O c6 6. c4 dxc4 {D73: Fianchetto Grünfeld: 5 Nf3 .} 7. a4 Ne4 8. Qc2 Nd6 {The position is equal.} 9. e4 a5 10. Na3 Na6 11. Qe2 {[%mdl 1024] White has compensation.} Bg4 12. Rd1 $1 Nb4 {[#]} 13. Bd2 $146 ({Predecessor:} 13. h3 Bxf3 14. Bxf3 O-O 15. Nxc4 Nxc4 16. Qxc4 e6 17. Be3 Qe7 18. Rd2 Rfd8 19. Rad1 Rd7 20. b3 h5 {½-½ (20) Diermair,A (2507)-Bartel,M (2609) Batumi 2018}) 13... O-O 14. Bc3 Qc7 15. h3 Bxf3 16. Bxf3 e6 17. Nxc4 {Accuracy: White = 100%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.7"]
[White "Aleksandrov, Aleksej"]
[Black "Rakhmanov, Aleksandr"]
[Result "1/2-1/2"]
[ECO "D30"]
[WhiteElo "2592"]
[BlackElo "2645"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,65,20,26,23,22,18,22,21,17,22,19,17,17,14,18,0,0,0,0,-7,-7,-6,16,11,48,25,26,14,12,0,0,0,0,0,20,16,18,0,0,0,0,0,6,0,0,0]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. e3 a6 5. a3 dxc4 6. Bxc4 c5 7. O-O Nc6 8. dxc5 Qxd1 9. Rxd1 Bxc5 10. b4 Be7 {10...Ba7 is not played anymore.} 11. Bb2 O-O 12. Nbd2 {D27: Queen's Gambit Accepted: Classical main line: 7 e4!? and 7 a4.} Rd8 13. Nb3 Bd7 14. Be2 Nd5 15. Rac1 {[#]} Be8 $146 ({Predecessor:} 15... Rac8 16. Nc5 Bxc5 17. Rxc5 f6 18. Nd2 Na7 19. Rxc8 Rxc8 20. Ne4 Rc2 {½-½ (32) Ulbig,S (2300)-Dothan,Y (2582) ICCF email 2015}) 16. Nc5 Bxc5 17. Rxc5 Na7 18. g3 Bb5 19. Bxb5 Nxb5 20. Ra1 Rac8 21. Rac1 Rxc5 22. bxc5 Ne7 23. a4 Na7 24. Rb1 Nac6 {The position is equal.} 25. Bc3 Rd3 26. Be1 Rd7 27. Kf1 Ng6 28. Bc3 Rc7 29. Nd2 Nf8 30. Nb3 Nd7 31. Ke2 f6 32. e4 Kf7 33. Bd2 {Accuracy: White = 100%, Black = 95%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.8"]
[White "Antipov, Mikhail Al."]
[Black "Deac, Bogdan-Daniel"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "2562"]
[BlackElo "2626"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,91,12,16,10,8,12,0,14,10,23,5,8,7,8,17,15,0,1,11,11,3,18,18,11,0,6,9,12,2,45,29,78,86,118,79,81,80,72,75,72,64,70,25,28,30,30,20,28,28,25,25,15,19,33,33,33,33,33,29,35,35,45,37,35,43,36,41,39,14,14,14,14,14,14,15,15,0,0,0,8,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 d6 6. Nbd2 a5 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 7. O-O O-O 8. h3 h6 9. Re1 a4 10. Nf1 Ra5 11. Bd2 b5 12. Bd5 Ne7 {[#]} 13. d4 $146 ({Predecessor:} 13. b4 axb3 14. Bxb3 Ng6 15. d4 Bb6 16. Ng3 c5 17. Qc1 Ra7 18. Bxh6 gxh6 19. Qxh6 {½-½ (32) Eastlake,P (2133)-Cornelisse,J (2249) ICCF email 2017}) 13... exd4 14. b4 $1 {[%cal Rb4a5]} ({Of course not} 14. cxd4 Bb6 $17) 14... axb3 $1 15. cxd4 b2 16. Bxa5 {aiming for Rb1.} bxa1=Q 17. Qxa1 Nfxd5 18. dxc5 Nf4 19. Rd1 $36 {[%mdl 2048] Threatens to win with cxd6. White is more active.} d5 (19... Bxh3 $5 20. cxd6 (20. gxh3 Qc8 $11) 20... Nc6 21. Bxc7 (21. gxh3 Nxa5 22. d7 Nxh3+ 23. Kg2 Nf4+ 24. Kh2 Nc4 $17) 21... Qd7 $16) 20. Ne3 Bb7 21. Qe5 {[%mdl 64] [#] Double Attack} Neg6 22. Qxc7 Qxc7 23. Bxc7 Ne2+ 24. Kf1 dxe4 {[#]} 25. Ne5 $1 {[%cal Re5g6]} Nc3 26. Nxg6 (26. Rd7 $5 {[%cal Re5g6]} Bc8 27. Rd2 $14) 26... fxg6 27. Rd6 Rc8 28. Rd7 {And now Be5 would win.} Bc6 29. Re7 {Hoping for Be5.} Re8 30. Rxe8+ Bxe8 $11 {[%mdl 4096] Endgame KBN-KBN} 31. a3 Kf7 32. Be5 Nb1 33. Nc2 Nd2+ $1 34. Ke2 Nc4 35. Bd4 h5 36. Nb4 g5 37. c6 Ke6 38. Bxg7 Kd6 39. Bh6 Bxc6 {The position is equal.} 40. Bxg5 Nxa3 41. Ke3 Nc4+ 42. Kd4 {With the idea Bf4+.} Bb7 43. Nc2 Nb2 44. Bf4+ Ke6 45. Be3 Nd3 46. f3 {Accuracy: White = 91%, Black = 89%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.9"]
[White "Indjic, Aleksandar"]
[Black "Shimanov, Aleksandr"]
[Result "0-1"]
[ECO "E97"]
[WhiteElo "2622"]
[BlackElo "2587"]
[Annotator "TA"]
[PlyCount "114"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,114,20,17,1,10,-26,-18,-6,-13,-50,-37,-40,-15,-18,-14,-34,25,36,29,43,33,0,0,0,-4,0,0,0,-28,-15,110,33,38,30,29,37,29,46,29,29,29,29,33,31,32,32,26,0,0,0,0,0,0,-30,-29,-50,-10,-93,-23,-30,-21,-30,0,0,0,0,0,0,0,-85,-86,-97,-81,-699,-696,-832,-847,-1441,-1197,-1304,-1300,-5812,-2951,-12840,-12840,-12841,-12841,-12841,-12842,-12842,-12843,-12843,-12843,-12844,-12844]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. e4 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. b4 Nh5 10. g3 f5 11. Ng5 Nf6 12. Bf3 {E97: King's Indian: Classical Main Line (6...e5 7 0-0 Nc6): 8 Be3 and 8 d5 Ne7, not 9 Ne1.} c6 {[#]} 13. dxc6 $146 ({Predecessor:} 13. Bg2 h6 14. Ne6 Bxe6 15. dxe6 Nxe4 16. Nxe4 fxe4 17. b5 Rf6 18. Bxe4 Rxe6 19. Qa4 d5 {1-0 (29) Kramnik,V (2801)-Grischuk,A (2761) Moscow 2012}) 13... bxc6 14. exf5 {The position is equal.} gxf5 15. b5 h6 $1 {[%cal Rh6g5]} 16. Nh3 Be6 {And now ...Ne4 would win.} 17. bxc6 Bxc4 18. Re1 Qc7 (18... d5 $15 19. Ba3 Nxc6) 19. Ba3 $11 Rfd8 $1 20. Qa4 $36 {[%mdl 2048] White is more active.} d5 21. Nf4 {Hoping for Ne6.} (21. Bxe7 $5 Qxe7 22. Rac1 $11) 21... Nxc6 22. Ne6 {[%mdl 64] Double Attack} Qd7 23. Nxd8 Rxd8 24. Be2 Bxe2 25. Nxe2 Ne4 (25... f4 $11 26. Qb3 (26. gxf4 Qg4+ 27. Ng3 Nd4 $17) 26... fxg3 27. Qxg3 (27. hxg3 Na5 $17) 27... Kh8) 26. Rec1 (26. Rac1 $16 Nd4 27. Qxd7 Nf3+ {[%mdl 64] Double Attack} 28. Kh1 Rxd7 29. Rc8+ Kh7 30. Rec1) 26... Nd4 $14 27. Qxd7 Nxe2+ 28. Kf1 N2xg3+ 29. hxg3 Rxd7 30. Rc8+ Kf7 31. Rac1 Nd2+ $1 32. Ke2 {[%mdl 1024] White has compensation.} Nc4 33. Bc5 e4 34. Rd1 Nb2 35. Rb1 d4 36. Ba3 Na4 {White must now prevent ...Nc3+.} 37. Kd2 Nc3 38. Rb3 Bf6 39. Rcb8 {[#]} (39. Ke1 $11) 39... Bg5+ ({Of course not} 39... Nxa2 $6 40. R3b7 $11) (39... Kg6 $1 $17 40. R3b7 Rd5) 40. Ke1 $1 $11 Kg6 41. Bb2 $1 Nxa2 42. R3b7 Rd5 43. Rxa7 Nc3 44. Rc7 Na4 45. Bc1 {[#]} (45. Ba3 $1 $11 {keeps the balance.}) 45... Kh5 $1 $17 46. Rg8 Kg4 {aiming for ...Kf3.} 47. Rc4 $2 {[%mdl 8192] This move loses the game for White.} (47. Kf1 $17) 47... Nc5 $19 {Black is clearly winning.} 48. Bxg5 hxg5 {[%mdl 4096] Endgame KRR-KRN} 49. Rc8 Nd3+ 50. Ke2 Ne5 51. R4c5 d3+ 52. Kd1 Rxc5 53. Rxc5 Nf3 54. Rd5 Kh3 55. Ra5 Kg2 56. Ra2 Kf1 57. Rb2 d2 {Accuracy: White = 56%, Black = 81%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.10"]
[White "Idani, Pouya"]
[Black "Zhou, Jianchao"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2577"]
[BlackElo "2622"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,85,5,14,0,0,0,0,0,0,0,0,0,0,0,0,-2,49,49,45,33,52,45,51,38,80,70,53,62,47,50,53,58,52,52,39,48,48,45,68,69,59,63,56,66,133,122,81,69,79,66,65,0,76,0,58,62,68,62,64,0,3,10,10,0,8,6,34,19,19,18,62,-8,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nf3 Be7 8. Nd2 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} b5 9. a4 b4 10. Nd5 Nxd5 11. exd5 Nd7 12. a5 O-O 13. Nc4 f5 14. f3 {[#]} Bg5 $146 ({Black should play} 14... Rb8 $11) ({Predecessor:} 14... Nf6 15. Be2 Qe8 16. f4 Bb7 17. Nb6 Rd8 18. O-O Ne4 19. Ra4 exf4 20. Bxf4 b3 21. cxb3 {½-½ (38) Smirnov,A (2604)-Keymer,V (2527) Wijk aan Zee 2020}) 15. Bxg5 $14 Qxg5 16. Qd2 Qxd2+ 17. Kxd2 Rd8 18. Nxd6 Nf6 19. Nc4 Rxd5+ 20. Kc1 {[#] And now Nb6 would win.} Rb8 21. Nb6 Rc5 22. Bc4+ Kf8 {White should prevent ...Rxb6!} 23. b3 $36 {[%mdl 2048] White has the initiative.} Bb7 24. Rd1 Ke7 25. Kb2 Rd8 26. Rxd8 Kxd8 27. c3 bxc3+ 28. Kxc3 f4 (28... Kc7 $14) 29. Rd1+ Ke7 30. Kb4 Rc7 31. Re1 Kd6 32. Rd1+ Ke7 33. Re1 Kd6 34. Bd3 e4 35. Nc4+ Ke6 36. Bxe4 ({Better is} 36. fxe4 $14 g5 37. Bc2) 36... Bxe4 $11 37. fxe4 $14 {[%mdl 4096] Endgame KRN-KRN} g5 38. h3 h5 39. Kc3 Rd7 40. Nb2 Rc7+ 41. Kd2 Nd7 42. e5 (42. b4 $1 $14) 42... Rc5 $11 43. b4 {Accuracy: White = 92%, Black = 82%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.11"]
[White "Sargsyan, Shant"]
[Black "Artemiev, Vladislav"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2594"]
[BlackElo "2728"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,90,32,12,20,26,32,25,21,36,1,18,19,19,14,11,11,14,10,9,6,12,12,7,7,22,7,21,8,12,13,37,24,66,62,67,67,108,106,102,102,100,87,85,52,51,28,28,28,28,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qb3 Nb6 6. d4 Bg7 7. e4 O-O 8. Be3 Bg4 9. Rd1 {[%cal Ba1d1,Bd1d5,Bd5b5][%mdl 32]} Bxf3 10. gxf3 e6 11. d5 {D99: Grünfeld: Russian System: 7 e4 Bg4 8 Be3 Nfd7 9 Qb3.} exd5 12. Nxd5 Nxd5 13. Rxd5 {White has an edge.} Qf6 $1 14. Bg2 Qxb2 15. Qxb2 Bxb2 16. Rb5 Bc3+ 17. Ke2 b6 18. Rc1 Ba5 19. Bh6 Rd8 20. Rxc7 Na6 $132 {[%mdl 2048] Black is fighting back} 21. Rc4 Rdc8 22. Rxc8+ $1 Rxc8 {[#]} 23. Rd5 $146 ({Predecessor:} 23. Re5 Bc3 24. Re7 Ra8 25. Be3 Kf8 26. Rd7 Nc5 27. Rd5 Rc8 28. f4 {½-½ (37) Van Gysel,M (2125)-Ederer,K (2183) LSS email 2011}) 23... b5 24. Re5 Nc7 25. Bh3 Re8 26. Rxe8+ Nxe8 $14 {[%mdl 4096] Endgame KBB-KBN} 27. Be3 Bb6 28. Bxb6 axb6 $16 {KB-KN} 29. Kd3 Kf8 30. Kc3 Ke7 31. Kb4 Nc7 32. e5 g5 33. Bf5 h6 34. Bc8 f6 {The position is equal.} 35. exf6+ Kxf6 36. Bd7 Nd5+ 37. Kxb5 {[#] aiming for a4.} Nc3+ 38. Kxb6 Nxa2 39. Kc5 Ke5 40. Kc4 Kf4 41. Bg4 Nc1 42. h3 Ne2 43. Kd5 Ng1 44. Ke6 Nxf3 45. Bxf3 Kxf3 {Accuracy: White = 91%, Black = 92%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.12"]
[White "Vaibhav, Suri"]
[Black "Sargissian, Gabriel"]
[Result "1/2-1/2"]
[ECO "C67"]
[WhiteElo "2591"]
[BlackElo "2689"]
[Annotator "TA"]
[PlyCount "27"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,27,20,11,27,29,34,28,34,19,25,17,7,-1,29,27,20,27]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bf1 Nf5 {C67: Ruy Lopez: Berlin Defence: 4 0-0 Nxe4.} 8. Nf3 d5 9. d4 O-O {White has an edge.} 10. Nc3 Bb4 11. h3 Nce7 {[#]} 12. a3 $146 ({Predecessor:} 12. Bd3 c6 13. a3 Ba5 14. Bd2 Ng6 15. Ne2 Bc7 16. Qc1 Re8 17. c4 dxc4 18. Bxc4 {0-1 (73) Wei,Y (2737)-Rapport,R (2735) China 2019}) 12... Ba5 (12... Bxc3 $5 13. bxc3 Nd6 $14) 13. b4 Bb6 14. Na4 {Accuracy: White = 100%, Black = 86%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.13"]
[White "Sychev, Klementy"]
[Black "Kovalev, Vladislav"]
[Result "1/2-1/2"]
[ECO "E06"]
[WhiteElo "2563"]
[BlackElo "2650"]
[Annotator "TA"]
[PlyCount "156"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,156,31,31,37,44,31,30,27,14,43,29,30,26,31,37,33,34,35,32,41,40,33,31,38,35,37,38,60,31,42,42,59,53,61,60,50,33,48,27,18,12,54,4,26,19,50,7,24,18,36,22,32,0,35,6,41,34,59,57,83,70,102,83,76,89,112,119,89,74,114,103,141,112,139,133,136,128,117,76,60,60,115,109,95,97,135,80,85,88,77,74,79,71,129,109,109,99,109,109,109,109,109,109,106,79,102,0,104,20,28,20,20,20,27,20,20,21,39,37,31,12,12,9,12,0,0,0,46,45,41,38,30,44,45,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Ne5 c5 8. dxc5 Qc7 $1 {The main line 8...Qc7 scores better than 8...Bxc5. E05: Open Catalan: 5 Nf3 Be7.} 9. Nxc4 Rd8 10. Qb3 Nc6 {White has an edge.} 11. Be3 {Strongly threatening Nc3.} Nd4 12. Bxd4 $1 Rxd4 13. Nbd2 {[%cal Bb1d2,Bd2b3,Bb3a5][%mdl 32]} Bxc5 14. Rac1 Rd8 {[#]} 15. Qf3 $146 ({Predecessor:} 15. Ne4 Nxe4 16. Bxe4 g6 17. Rc2 Bf8 18. f4 Qc5+ 19. e3 Rb8 20. Rfc1 Bd7 21. Ne5 {1-0 (32) Enchev,I (2482)-Drnovsek,G (2388) Zagreb 2019}) 15... Rb8 16. Nb3 Bf8 17. Qe3 Ra8 18. Qe5 Qxe5 19. Nxe5 Rb8 20. Rfd1 Be7 21. Na5 Kf8 22. a3 Ke8 23. b4 Nd5 24. Rd3 Nb6 25. Kf1 f6 26. Rxd8+ Bxd8 27. Nd3 Nd7 28. Bf3 Ke7 29. h4 Bb6 30. Rc2 Bd8 31. Ke1 Bb6 32. g4 h6 33. h5 Kd8 (33... Bxa5 $5 34. bxa5 Kd8 $11) 34. Nb3 Ke7 35. Be4 Kd8 36. a4 a6 37. e3 $36 {[%mdl 2048] Black is under pressure.} Bc7 38. Nd4 Nf8 39. Nc5 Bd6 40. a5 Ke8 41. b5 axb5 42. Nxb5 Be7 43. Ke2 f5 44. gxf5 exf5 45. Bd5 Kd8 46. f4 Bxc5 47. Rxc5 Nd7 (47... Bd7 $14) 48. Rc1 $16 Nf6 49. Bf3 Ne4 50. Nd4 ({White should try} 50. Bxe4 fxe4 51. Rg1) 50... Ra8 51. Bxe4 fxe4 {[%mdl 4096] Endgame KRB-KRN} 52. Rc5 Ke7 53. Kf2 Kf6 ({Better is} 53... Bd7) 54. Kg3 Bd7 55. Rd5 Be8 56. Rf5+ Ke7 57. Re5+ Kf6 58. Nb3 Bc6 59. Nc5 Kf7 60. Nb3 Kf6 $1 61. Rc5 (61. Kg4 $16) 61... Rd8 $1 $11 {[#]} 62. a6 $1 {[%mdl 512] And now Na5 would win.} Ra8 $1 (62... bxa6 63. Rxc6+) 63. axb7 Bxb7 64. Na5 Ba6 65. Rc6+ Kf7 66. Nc4 Kg8 67. Rc7 Rd8 68. Ne5 Be2 69. Nc6 Rd1 70. Ne7+ Kh8 71. Ng6+ Kh7 72. Nf8+ Kh8 $1 73. f5 Bxh5 74. Rc8 {[#] Intending Ng6+! and mate.} g5 {The position is equal.} 75. fxg6 {White wants to mate with Ne6+.} Kg7 76. Ne6+ Kf6 77. g7 {Hoping for Nf4.} Bf7 78. Rc6 Bxe6 {Accuracy: White = 82%, Black = 79%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.14"]
[White "Sethuraman, S.P."]
[Black "Savchenko, Boris"]
[Result "1-0"]
[ECO "C18"]
[WhiteElo "2641"]
[BlackElo "2573"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,71,8,37,32,53,39,49,53,52,46,52,50,58,38,64,41,52,24,35,32,17,16,17,7,185,165,277,270,289,276,530,531,563,580,574,574,534,202,562,572,894,886,808,534,1472,1386,29992,29993,29993,29994,29994,2114,29992,29993,29993,29994,29995,29996]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qa5 7. Bd2 Qa4 8. Qg4 g6 9. Nf3 {C18: French: 3 Nc3 Bb4: Main line: 7 h4 and 7 Qg4.} Nc6 10. Be2 c4 11. Ra2 {White is slightly better.} Bd7 12. Qh4 h6 13. O-O b6 {13...Rh7 gains popularity.} 14. Bg5 Nce7 15. Rb1 Qa5 {[#]} 16. a4 $146 ({Predecessor:} 16. Bf6 Nxf6 17. exf6 Nc6 18. Rb4 Nxb4 19. cxb4 Qa6 20. Ne5 b5 21. Bd1 Qb6 22. c3 {1-0 (37) Jandek,S (2327)-Jovanovic,B (2079) LSS email 2014}) 16... Nf5 17. Qh3 Bxa4 18. Nd2 {next Nb3 is good for White.} Kf8 19. Bf4 g5 $2 {[#] Black cannot hold the game after this.} (19... Rc8 $1 $11 {and Black has nothing to worry.}) 20. Bxg5 $1 $18 {[%mdl 512]} hxg5 (20... Nxd4 $142 21. cxd4 hxg5 22. Qxh8 Qxd2) 21. Qxh8 Qxc3 22. Nf3 (22. Rxa4 Qxc2 23. Rba1 Qxd2 $11) 22... g4 $2 (22... Bxc2 23. Rc1 Nxd4 24. Nxd4 Qxd4) 23. Ng5 ({Stronger than} 23. Rxa4 Qxc2 24. Rba1 gxf3 $11) 23... Nxd4 24. Bxg4 (24. Rxa4 Nxe2+ 25. Kf1 (25. Kh1 Qxc2 26. Rba1 Qg6 $11) 25... Qxc2 $16) 24... Bxc2 25. Rba1 a5 26. h4 $2 $40 {[%mdl 128] White is out for blood.} (26. Bh5 Nb3 27. Rf1) 26... Bb3 $2 (26... Nc6 {is more resistant.} 27. Bxe6 (27. Nxe6+ Ke7 $16) 27... Qxe5 28. Qxe5 Nxe5) 27. Ra3 Qd2 28. Bh5 Ke7 29. Bxf7 {And now Qg7 would win.} Qf4 30. Qh7 {Intending Bxe6+ and mate.} Kd7 31. Bxe6+ {[%mdl 64] Double Attack} Kc6 32. Qd7+ {[%mdl 64] Double Attack} Kc5 33. Qxd5+ Kb4 34. Ra4+ {White mates.} Kc3 35. Ne4+ Kd3 {[#]} 36. Rd1+ $1 {[%mdl 576] Decoy. Accuracy: White = 76%, Black = 49%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.15"]
[White "Bharath Subramaniyam H"]
[Black "Riazantsev, Alexander"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2402"]
[BlackElo "2639"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,96,0,0,2,-26,-20,-29,-37,-57,-60,-56,-50,-112,-45,-67,-68,-79,-93,-70,-63,-91,-91,-85,-87,-89,-88,-75,-78,-109,-104,-156,-95,-168,-72,-102,-70,-68,-68,-53,-54,-53,-60,-55,-39,-56,-54,-55,-52,-58,0,-40,-40,-40,-40,-40,-45,-49,-34,-49,-18,-18,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 d5 2. g3 Nd7 3. Bg2 e5 4. d3 Ngf6 5. O-O c6 6. e4 dxe4 7. dxe4 Bc5 8. Qe2 O-O 9. Nbd2 Re8 {A00: Irregular Openings.} 10. b3 a5 11. Bb2 b5 {Black has an edge.} 12. a4 Ba6 13. axb5 cxb5 {[#]} 14. h3 $146 (14. c3 $15) ({Predecessor:} 14. Ne1 Qb6 15. Kh1 b4 16. Nd3 Bd4 17. Bxd4 Qxd4 18. f4 Qc3 19. Nf3 exf4 20. gxf4 Rxe4 {1-0 (40) Keskinen,S (2239)-Frenklakh,V (2275) Helsinki 2001}) 14... Qb6 (14... b4 $17 15. Nc4 {[%mdl 64] Double Attack} Rc8) 15. Rfd1 {[#]} a4 $1 {[%mdl 512]} 16. Qe1 (16. bxa4 bxa4) 16... Bb7 17. bxa4 bxa4 {...a3 is the strong threat.} 18. Nc4 Qc7 19. Nfd2 Nb6 {[%cal Bd7b6,Bb6c8,Bc8d6,Bd6b5][%mdl 32] aiming for ...Nxc4.} 20. Na3 Ba6 21. Nf1 Nc8 22. Ne3 Nd6 23. Bc3 {[#]} (23. f3 $142) 23... Bb7 ({Stronger than} 23... Ndxe4 24. Bxe4 Nxe4 25. Nd5 $11) (23... Nfxe4 24. Nd5 $14) ({Black should try} 23... Rab8 $1 24. Nd5 Nxd5 25. Rxd5 Bb7) 24. Nd5 (24. Bb4 $17 {was necessary.}) 24... Nxd5 (24... Bxd5 $19 {is more deadly.} 25. exd5 e4) 25. exd5 $17 Bxa3 26. Rxa3 Nb5 {Hoping for ...Qc8.} 27. d6 $1 {[%cal Rd6c7]} Nxd6 {And now ...Bxg2 would win.} 28. Bxb7 Nxb7 29. Qe4 Nd6 30. Bxe5 Nxe4 31. Bxc7 Rec8 32. Rd4 f5 ({Don't play} 32... Rxc7 $6 33. Raxa4 Rf8 34. Rxe4 $14) (32... Nxf2 $1 $15 33. h4 Nh3+ 34. Kh2 Rxc7) 33. f3 Ng5 34. Bf4 Nxh3+ 35. Kg2 Nxf4+ 36. Rxf4 Rxc2+ $15 {[%mdl 4096] Endgame KRR-KRR} 37. Kh3 Rf2 38. Rxf5 {The position is equal.} Ra6 39. Rf4 Rh6+ 40. Rh4 Rf6 41. Rf4 Rh6+ 42. Rh4 Rf6 43. Rf4 Rh6+ 44. Rh4 Rf6 45. Rf4 Rxf4 46. gxf4 Kf7 47. Kg3 Re2 48. Rxa4 Kf6 {Accuracy: White = 76%, Black = 76%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.16"]
[White "Durarbayli, Vasif"]
[Black "Erigaisi Arjun"]
[Result "1/2-1/2"]
[ECO "B91"]
[WhiteElo "2625"]
[BlackElo "2563"]
[Annotator "TA"]
[PlyCount "179"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,179,9,30,-8,-9,-9,20,32,21,14,13,10,10,0,38,52,54,40,13,17,60,47,59,55,53,60,161,141,191,185,198,198,188,195,178,187,180,184,184,191,185,31,38,35,38,38,45,38,43,20,21,0,45,0,32,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,0,0,0,-8]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nb3 Be6 8. Bg5 {B91: Sicilian Najdorf: 6 g3.} Nbd7 {[#]} 9. f4 $146 ({Predecessor:} 9. Bg2 Be7 10. a4 O-O 11. O-O Qc7 12. h3 Rac8 13. Kh2 Nb6 14. a5 Nc4 15. Bc1 {0-1 (46) Yap,K (2361)-Salubre,J (2282) Bacolod 2017}) 9... exf4 (9... h6 $5 {[%cal Rh6g5]} 10. Bh4 Qc7 $11) 10. gxf4 h6 11. Bxf6 Qxf6 12. Qf3 h5 13. Qg3 Rc8 14. O-O-O g6 15. Be2 h4 16. Qe3 Bh6 17. Rhf1 g5 {[%cal Rg5f4]} 18. Nd5 Bxd5 $1 19. exd5+ Kf8 ({Better is} 19... Qe7 $14 20. Qxe7+ Kxe7) 20. Qh3 $1 $18 {[%cal Rh3d7]} Rc7 {[#]} 21. fxg5 $1 Qxg5+ 22. Kb1 Bg7 {[#]} 23. Rxf7+ $1 {[%mdl 576] Remove Defender, Decoy} Kxf7 24. Qe6+ {[%mdl 64] Double Attack} Kf8 25. Qxd6+ {[%mdl 64] Double Attack} Qe7 26. Qxc7 Qxe2 {[#]} 27. Qd8+ $2 (27. Rg1 $1 $18 Qe5 28. Qd8+ Qe8 29. Qxe8+ {[%mdl 64] Overworked Piece} Kxe8 30. Rxg7) 27... Qe8 $14 28. Rf1+ Nf6 29. Rxf6+ Bxf6 30. Qxf6+ {[%mdl 4160] Endgame Double Attack. KQR-KQN} Kg8 31. Qg5+ Kf8 32. Qf6+ Kg8 33. Qg5+ Kf8 34. a3 Rh5 {The position is equal.} 35. Qf4+ Qf7 36. Qb4+ Kg8 37. Qg4+ Kf8 38. Qb4+ Kg8 39. Qg4+ Kf8 40. Qc8+ Kg7 41. d6 Rd5 42. Qc7 b5 43. Ka2 Kg6 44. Qd8 h3 45. Qc8 Rxd6 46. Qxh3 {Black must now prevent Qg3+.} Kg7 47. Qg3+ Rg6 48. Qe5+ Kh7 49. Qe4 Kg7 50. a4 bxa4 51. Qxa4 Rh6 52. Qd4+ Qf6 53. Qa7+ Qf7 54. Qc5 Kh7 55. Qe5 Qc4 56. Qe7+ Kg8 57. Qe8+ Kh7 58. Qd7+ Kg8 59. Qd8+ Kh7 60. Qe7+ Kg8 61. Qg5+ Kh7 62. Qf5+ Kg8 63. h3 Qf7 64. Qc8+ Qf8 65. Qg4+ Qg7 66. Qf4 Qf6 67. Qg4+ Qg7 68. Qe4 Qg6 69. Qa8+ Kg7 70. Qc8 Qe6 71. Qc7+ Kg6 72. Qg3+ Kh7 73. Qd3+ Kg7 74. Qc3+ Kh7 75. Qd3+ Kg7 76. Qg3+ Kh7 77. Qc7+ Kg6 78. Qg3+ Kh7 79. Qd3+ Kg7 80. Qd4+ Qf6 81. Qd7+ Qf7 82. Qg4+ (82. Qd4+ {seems wilder.} Qf6) 82... Qg6 83. Ka3 (83. Qc4 {keeps more tension.} Qe6 84. Qc5 Rxh3 85. c4 Kh6 86. Qd4) 83... Qxg4 84. hxg4 $11 {KR-KN} Kf6 85. Kb4 Ke5 86. Nc5 Rb6+ 87. Kc4 {Hoping for Nd7+.} Rg6 88. Kb4 Rb6+ 89. Kc4 {aiming for Nd7+.} Rg6 90. Kb4 {Black escapes into a draw. Accuracy: White = 94%, Black = 92%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.17"]
[White "Aryan Chopra"]
[Black "Zvjaginsev, Vadim"]
[Result "1/2-1/2"]
[ECO "C65"]
[WhiteElo "2562"]
[BlackElo "2623"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,80,0,0,0,0,-4,0,1,6,0,3,-10,-9,-15,-12,-16,-7,-18,0,-11,-7,-22,-17,-39,-24,-25,-26,-33,-36,-64,-58,-61,-37,-108,-76,-106,-70,-72,-76,-85,-28,-27,-25,-29,-26,-31,-14,-31,-31,-20,0,-7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. O-O a6 6. Ba4 b5 7. Bb3 Na5 8. Nc3 Be7 9. Bd2 {has lost popularity (9.h3). C84: Closed Ruy Lopez: Unusual White 6th moves.} c6 10. Ne2 Nxb3 11. axb3 Bg4 12. Ng3 {[#]} Nh5 $146 ({Predecessor:} 12... h5 13. h3 h4 14. Nf5 Bxf5 15. exf5 Qd7 16. Qe2 Qxf5 17. Rfe1 Rh5 18. b4 Kf8 {1-0 (31) Bichik,A (1868)-Herzog,K (1911) LSS email 2012}) 13. Nf5 Bxf5 14. exf5 Nf6 15. Ng5 O-O 16. Re1 Re8 17. Qf3 h6 18. Ne4 d5 19. Nxf6+ Bxf6 20. Qg3 Qd7 21. Bxh6 Qxf5 22. Bd2 e4 23. Bc3 d4 24. Bd2 (24. Ba5 $15) 24... Qc5 (24... e3 {keeps more tension.} 25. fxe3 dxe3 26. Bc3 Bxc3 27. bxc3 Qc5) 25. c3 dxc3 (25... b4 {is interesting.} 26. dxe4 bxc3 27. bxc3 dxc3 28. Bf4 Bd4) 26. Bxc3 Bxc3 27. bxc3 Qxc3 ({Black should try} 27... e3 $17 {aiming for ...exf2+.} 28. c4 Qd4 29. fxe3 Qxd3 30. cxb5 cxb5) 28. dxe4 $11 Qxg3 29. hxg3 $17 {[%mdl 4096] Endgame KRR-KRR} a5 30. Kf1 c5 31. Rec1 Rec8 32. Ke2 f6 {The position is equal.} 33. b4 cxb4 34. Rxc8+ Rxc8 35. Rxa5 $11 {KR-KR} Rc5 36. Kd3 b3 {[#] ( -> ...b2)} 37. Ra3 Rc2 38. Rxb3 Rxf2 39. Ke3 Rxg2 40. Kf3 Ra2 {Accuracy: White = 86%, Black = 88%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.18"]
[White "Smirin, Ilia"]
[Black "Grigoriants, Sergey"]
[Result "1-0"]
[ECO "C78"]
[WhiteElo "2615"]
[BlackElo "2539"]
[Annotator "TA"]
[PlyCount "143"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,143,49,42,28,5,12,4,8,17,7,6,0,27,0,9,17,30,-7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,25,13,37,29,26,21,46,46,36,55,58,43,52,16,86,51,92,86,84,79,100,90,90,60,81,66,75,41,46,-52,74,0,0,0,0,0,24,0,980,0,0,0,160,146,240,240,237,226,228,235,230,217,189,42,62,45,87,0,44,0,294,294,291,230,222,116,366,366,343,350,351,350,334,306,263,226,220,0,406,395,524,504,817,772,770,772,733,680,6179,5691,6354,6079,5591,5189,4710,4133]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Bc5 7. c3 d6 8. a4 Rb8 9. d4 Bb6 10. a5 $1 {[%mdl 4] is recently more successful than 10.axb5. C78: Ruy Lopez: Archangelsk and Möller Defences.} Ba7 $1 11. h3 O-O 12. Re1 {The position is equal.} Re8 13. Ng5 Rf8 $1 {[%cal Re5d4]} 14. Be3 Ra8 15. Nf3 Re8 16. Nbd2 Bb7 17. Bc2 h6 18. d5 Ne7 19. c4 c6 {[#]} 20. b4 $5 $146 {[%mdl 8] An interesting novelty.} ({Predecessor:} 20. b3 Ng6 21. Bd3 cxd5 22. Bxa7 Rxa7 23. exd5 Nf4 24. Bf1 bxc4 25. bxc4 Bc8 26. Qa4 Bf5 27. Qa3 Qc7 28. Rac1 {½-½ (39) Lu,S (2611)-Predke,A (2676) Moscow 2019}) 20... Bxe3 21. Rxe3 bxc4 22. dxc6 Nxc6 23. Nxc4 d5 $1 {[%cal Rd5c4]} 24. Nb6 {[%cal Re4d5]} d4 25. Rb3 Rb8 26. Bd3 Na7 27. Nd2 Nb5 28. Bxb5 axb5 29. Qe2 Bc6 30. Rc1 Re6 31. Rc5 Qe7 (31... Rxb6 $11 {remains equal.} 32. axb6 Nd7) 32. Rb1 Qb7 {[%cal Rc6e4]} 33. Rbc1 Rd8 34. Kh2 Rdd6 ({Avoid the trap} 34... Bxe4 $2 35. Rc7 $18) 35. f3 Kh7 36. g4 Ng8 37. Nd5 Ne7 38. Qd3 {aiming for f4.} Kg8 {[%cal Re7d5]} 39. a6 (39. Nxe7+ $14 Qxe7 40. Nf1) 39... Qa7 (39... Qxa6 $15 {keeps the upper hand.} 40. Nc7 {[%mdl 64] Double Attack} Qc8 41. Nxe6 Qxe6) 40. Nxe7+ (40. f4 $16 exf4 41. Nxf4 Qxa6 42. Nxe6 Rxe6 43. Qxd4) 40... Qxe7 $11 41. Nb3 Be8 42. Rc7 Qh4 43. a7 $36 {[%mdl 2048] White has good play.} Qf2+ $1 44. Kh1 Ra6 $1 45. Qf1 Qb2 $2 (45... Qe3 $11 46. Ra1 (46. Nc5 Rf6 $11) 46... Qxb3) 46. Rb1 Qa2 (46... Qa3 $16) 47. Nc5 $18 Rxa7 48. Rxa7 ({Don't play} 48. Nxe6 $6 fxe6 49. Rxa7 Qxa7 $16) 48... Qxa7 49. Nxe6 fxe6 {[%mdl 4096] Endgame KQR-KQB} 50. Ra1 Qe7 51. Qc1 (51. Qe1 $18) 51... Qxb4 $14 52. Qc8 Kf7 {[#]} 53. Qc7+ ({White should play} 53. Rc1 $1 $16) 53... Kf6 54. h4 {[%mdl 1024] White has compensation.} Bf7 $2 {[%mdl 8192]} (54... Qc3 $1 $11 55. Qd8+ {[%mdl 64] Double Attack} Kf7 56. Ra7+ Kg8) 55. h5 $18 Qe7 56. Qb8 {Threatens to win with f4.} Qe8 57. Qb6 (57. Qd6 $18) 57... Bxh5 $2 (57... g6 $16) 58. gxh5 Qxh5+ 59. Kg2 {Hoping for Qd8+.} Qg5+ 60. Kf1 Qe3 61. Qd8+ Kg6 62. Qe8+ Kh7 {[#]} 63. Qf7 $2 (63. Kg2 $1 $18) 63... d3 $2 {[%mdl 8192]} (63... Qc3 $11 {and Black is okay.} 64. Rd1 Qc2) 64. Re1 Qd4 {White must now prevent ...Qc4.} 65. Qxe6 {White is clearly winning.} d2 (65... Qb2 $142 66. Qf5+ Kh8 67. Qc8+ Kh7) 66. Rd1 Qe3 67. Qf5+ Kh8 68. Qh3 Qd3+ 69. Kf2 b4 70. Qc8+ Kh7 71. Qf5+ {[%mdl 64] Double Attack} Kh8 72. Qxe5 {Accuracy: White = 70%, Black = 60%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.19"]
[White "Kobalia, Mikhail"]
[Black "Sadhwani, Raunak"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2609"]
[BlackElo "2522"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,99,25,29,20,17,15,38,35,31,24,29,32,61,59,85,68,102,68,94,23,26,19,28,20,22,0,0,0,49,52,60,45,162,143,216,202,211,188,377,393,370,258,243,158,280,278,289,0,0,0,0,0,0,0,0,0,20,20,60,59,85,85,85,85,85,60,60,60,60,60,60,35,60,60,60,60,60,60,60,35,35,35,35,35,35,35,35,-8]} 1. Nf3 c5 2. e4 Nc6 3. Bb5 g6 4. Bxc6 bxc6 5. O-O Bg7 6. Re1 Nh6 7. c3 O-O 8. d3 {B31: Sicilian: 2...Nc6 3 Bb5 g6.} d6 9. h3 e5 10. d4 {[#]} exd4 $146 ({Predecessor:} 10... cxd4 11. cxd4 f6 12. Nc3 Nf7 13. dxe5 fxe5 14. Qb3 Kh8 15. Be3 Qf6 16. Qc4 Bxh3 17. Qxc6 Bxg2 18. Kxg2 {0-1 (34) Gagare,S (2026)-Castrillon Gomez,M (2231) Moscow 2019}) 11. cxd4 f5 12. Nc3 fxe4 13. Nxe4 Nf5 {[%cal Rf5d4]} 14. dxc5 d5 15. Nd6 Qa5 16. Ne5 ({Don't play} 16. Nxc8 $6 Raxc8 17. Qe2 Rc7 $11) (16. Bg5 $16) 16... Qxc5 $11 17. Nxc8 Rfxc8 18. Bf4 Re8 19. Bh2 Rac8 20. Rc1 Qa5 21. a3 Re6 22. b4 $36 {[%mdl 2048] Black is under pressure.} Qa6 {[#]} (22... Qd8 $1 $14) 23. Nf3 $1 $18 Rce8 (23... Ree8 $16 {was worth a try.}) 24. Rxe6 Rxe6 25. g4 Ne7 $2 (25... Nh6 26. a4 Nf7) 26. Ng5 Rf6 27. Be5 h6 28. b5 cxb5 (28... Qxa3 $16 29. Bxf6 Bxf6) 29. Rc7 Qb6 {[#]} 30. Rxe7 $2 (30. Qd2 $1 $18 Rxf2 31. Qxf2 Bxe5 32. Rxe7 Bh2+ 33. Kg2 Qxf2+ 34. Kxf2 hxg5 35. Rxa7) 30... Qxf2+ $11 31. Kh1 hxg5 32. Bxf6 Qxf6 33. Qxd5+ {[%mdl 4096] Endgame KQR-KQB} Kh7 34. Qf7 {Qxf6 would kill now.} Qa1+ 35. Kg2 Kh6 36. h4 Qb2+ 37. Qf2 Qxf2+ 38. Kxf2 $16 {And now hxg5+ would win. KR-KB} Bf8 39. Re5 (39. Rf7 {is interesting.} Bxa3 40. hxg5+ Kxg5 41. Kf3 a5 42. Rb7) 39... gxh4 {White is slightly better.} 40. Rxb5 {Hoping for Ra5.} Bxa3 41. Kg2 Bc1 42. Kf3 g5 43. Ra5 Bf4 44. Ra6+ Kg7 45. Rxa7+ Kf6 46. Ke4 h3 47. Ra6+ Ke7 48. Rh6 h2 49. Kf5 Kd7 50. Rxh2 {Black defended with fortune. Accuracy: White = 68%, Black = 62%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.20"]
[White "Asadli, Vugar"]
[Black "Karthikeyan, Murali"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2538"]
[BlackElo "2602"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,91,2,13,6,23,-39,-34,-33,-18,-18,-18,-17,-11,-12,7,7,7,7,5,10,0,0,18,28,20,20,16,6,19,29,43,47,32,16,22,21,22,22,22,20,152,154,1407,1319,1435,1448,1410,0,1427,1450,1306,1391,1423,1369,12835,12835,12836,11745,12837,12837,12838,12839,12839,12839,12841,12841,12841,12842,12842,12843,12843,12843,12845,12845]} 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 d6 5. Bc4 e6 6. d4 Nc6 7. O-O cxd4 8. cxd4 Be7 9. Qe2 O-O 10. Rd1 $1 {[%mdl 4] is currently scoring better than 10.Nc3. Played by Nikita Vitiugov in September 2019.} Na5 11. Bb5 {B22: Sicilian: 2 c3.} a6 12. Ba4 ({Better is} 12. Bd3 $11) 12... b5 13. Bc2 {Black is slightly better.} Nb4 14. exd6 Qxd6 15. Be4 ({Avoid the trap} 15. Bxh7+ $2 Kxh7 16. Bg5 (16. Qe4+ $2 Kg8 $19) 16... Kg8 $19) 15... Bb7 {[#]} 16. Nc3 $146 ({Predecessor:} 16. Bxb7 Nxb7 17. Nc3 Rac8 18. Bg5 f6 19. Bf4 Qd7 20. Re1 Rc6 21. d5 Nxd5 22. Nxd5 Qxd5 {½-½ (58) Sahin,O (2146)-Lazov,T (2290) Palic 2016}) 16... Nd5 17. Nxd5 Bxd5 18. Bf4 Qxf4 19. Bxd5 Rad8 20. Be4 Bf6 {[#]} 21. Ne5 $1 {[%mdl 512]} Bxe5 22. g3 Qg5 23. dxe5 Nc4 24. f4 Qe7 $1 25. b3 $36 {[%mdl 2048] White has good play.} Nb6 26. Qf2 Rxd1+ 27. Rxd1 Rd8 28. Rc1 Nd5 29. Qc5 Kf8 {[#] White stays focused until the end.} (29... Qe8 $11) 30. Bxd5 $1 $16 ({Weaker is} 30. Bxh7 g6 $17) 30... Rxd5 $2 (30... exd5 $16 31. Kf2 d4) 31. Qxd5 $18 exd5 $16 {[%mdl 4096] Endgame KQ-KR} 32. Rc8+ Qe8 33. Rxe8+ Kxe8 $18 {KP-KP} 34. Kf2 {White is clearly winning.} Kd7 35. Ke3 Ke6 36. Kd4 b4 37. g4 g6 38. h4 h5 {[#]} 39. g5 $1 Ke7 40. Kxd5 Kd7 41. Kc5 Ke6 42. Kxb4 Kf5 43. Kc5 Kg4 44. Kd6 Kxh4 {[#]} 45. f5 $1 {[%mdl 512]} Kxg5 (45... gxf5 46. e6) 46. e6 {Accuracy: White = 95%, Black = 72%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.21"]
[White "Martirosyan, Haik M."]
[Black "Nesterov, Arseniy"]
[Result "1/2-1/2"]
[ECO "D19"]
[WhiteElo "2630"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 28,57,20,0,16,11,19,8,52,30,34,60,56,0,6,0,0,-12,-11,-20,-23,-5,-15,-18,-21,-8,0,0,0,-10,0,0]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O O-O 9. Qe2 Nbd7 10. e4 Bg6 11. Bd3 Bh5 12. e5 Nd5 13. Nxd5 cxd5 14. Qe3 Be7 15. Bd2 Nb8 {D19: Slav Defence: 5 a4 Bf5 6 e3: Main line with 9 Qe2.} 16. Ne1 Bg6 17. Bxg6 fxg6 18. Nd3 Nc6 19. b4 a6 {[#]} 20. Nc5 $146 ({Predecessor:} 20. Rfb1 b5 21. Rb2 bxa4 22. Rxa4 Qb6 23. Bc3 Qb5 24. Ra1 Rab8 25. Nc5 Bxc5 26. bxc5 {0-1 (44) Johanson,F (1993)-Warren,R (1973) IECG email 2005}) 20... Bxc5 $1 21. dxc5 Qh4 22. b5 axb5 23. axb5 Rxa1 24. Rxa1 Nd4 {[#] ...Nc2 is the strong threat.The position is equal.} 25. Rb1 {Hoping for Rb4.} Nc2 26. Qe2 $1 Nd4 27. Qe3 {Black must now prevent Rb4.} Nc2 28. Qe2 $1 Nd4 29. Qe3 {Accuracy: White = 90%, Black = 92%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.22"]
[White "Abdusattorov, Nodirbek"]
[Black "Kulaots, Kaido"]
[Result "1/2-1/2"]
[ECO "B91"]
[WhiteElo "2644"]
[BlackElo "2510"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,79,21,17,16,13,21,21,18,25,20,22,12,14,18,8,0,0,0,0,0,0,0,0,0,0,0,0,-16,0,0,0,-19,3,11,27,27,27,27,27,29,20,23,18,12,18,17,21,14,39,28,39,0,32,16,35,4,4,0,3,-56,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be7 8. Bg2 b5 9. Nd5 {B91: Sicilian Najdorf: 6 g3.} Nbd7 10. Nec3 Nb6 11. Nxe7 Qxe7 12. O-O O-O 13. Bg5 h6 14. Bxf6 Qxf6 15. a4 b4 16. Nd5 Nxd5 17. Qxd5 Be6 18. Qxd6 a5 19. Qb6 Rfc8 20. Rfc1 Qe7 {[#]} 21. c3 $146 ({Predecessor:} 21. Qe3 Rc5 22. Bf1 Rac8 23. Ba6 R8c6 24. Bb5 Rc8 25. Ba6 R8c6 26. Bb5 Rc8 27. Ba6 {½-½ (27) Navara,D (2745)-Wojtaszek,R (2744) Shamkir 2018}) 21... bxc3 22. Rxc3 Rcb8 23. Qc5 Qxc5 (23... Qd7 {is interesting.} 24. Qxe5 Rxb2 25. Rd3 Qxd3 26. Qxb2 Rc8) 24. Rxc5 f6 25. f4 Rxb2 26. fxe5 fxe5 27. Rxe5 Bd7 28. Rc5 Ra7 29. e5 {White wants to play Bd5+.} Kf7 30. Bd5+ Ke7 31. Rf1 {[#] Strongly threatening Rf7+.} Be8 32. Rc8 Rd2 33. Rc5 Re2 34. Bg8 Re4 35. e6 {[#] Threatens to win with Rc8.} Re2 36. Bf7 Bxa4 37. Rc8 ({Better is} 37. Bh5 $11 Rxe6 38. Rf7+ Kd6 39. Rxa7 Kxc5 40. Rxa5+ Kb4 41. Rf5) 37... Rb7 (37... Rc2 $15 38. Bg6 Rxc8 39. Rf7+ Kxe6 40. Rxa7 Rc5) 38. Bh5 $11 {The position is equal.} Reb2 39. Rc4 Be8 40. Bxe8 {Accuracy: White = 87%, Black = 93%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.23"]
[White "Shtembuliak, Evgeny"]
[Black "Sengupta, Deep"]
[Result "1/2-1/2"]
[ECO "A10"]
[WhiteElo "2628"]
[BlackElo "2534"]
[Annotator "TA"]
[PlyCount "118"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,118,43,36,43,36,83,56,69,69,71,74,72,72,64,59,71,62,106,89,101,101,99,55,98,106,84,101,98,22,70,-4,133,141,133,120,103,43,68,68,71,66,83,77,66,14,17,0,0,0,0,0,0,0,0,0,0,0,55,8,8,8,8,8,8,8,8,8,8,0,0,0,8,8,8,8,8,8,8,8,21,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,0,0,0,8]} 1. c4 g6 2. d4 Bg7 3. e4 d6 4. Nc3 Nd7 5. Nge2 e5 6. Be3 Ne7 7. Qd2 a6 {[#] A42: Modern Defence: Averbakh Variation.} 8. h4 $146 ({Predecessor:} 8. Bh6 O-O 9. O-O-O b5 10. h4 Nb6 11. Ng3 b4 12. Nb1 Nc6 13. Bxg7 Kxg7 14. d5 Nd4 15. Bd3 {½-½ (35) Kania,P (2242)-Barburzynska,M (1887) Polanica Zdroj 2008}) 8... h6 9. Ng3 Nc6 {[%cal Re5d4] White is slightly better.} 10. d5 Nd4 11. Nge2 Nxe2 12. Bxe2 h5 13. O-O-O Qe7 14. f3 Nf6 15. Kb1 Bd7 16. Rc1 Ng8 17. Nd1 Bh6 18. Bxh6 Nxh6 19. c5 dxc5 20. Ne3 (20. b4 $16) 20... Bb5 21. Bd1 ({White should play} 21. Rhd1 $14) 21... a5 (21... f5 $11 {keeps the balance.}) 22. g4 hxg4 23. fxg4 f6 {[#]} 24. g5 $1 {[%mdl 512]} Nf7 (24... fxg5 25. hxg5) 25. gxf6 Qxf6 26. Rxc5 {[%mdl 64] Double Attack} Qb6 $1 {[%cal Rb6c5]} 27. Qc3 O-O-O 28. Bc2 (28. d6 $1 $14 Rxd6 29. Nd5 (29. Rxb5 $2 Qxb5 30. Nd5 c6 $19) 29... Rxd5 30. exd5 (30. Rxd5 Bc6 $11)) 28... Kb8 $11 29. a4 Ba6 30. Rxa5 Qd4 31. Qb3 {aiming for Rxa6.} Qb6 32. Qc3 {Rc5 is the strong threat.} Qd4 33. Rc5 Nd6 34. Ng4 {[%cal Be3g4,Bg4e5,Be5c6][%mdl 32]} Nc4 ({Black should try} 34... Bc4 $11 35. Qxd4 exd4) 35. Rxc4 {[%mdl 64] [#] Remove Defender} Bxc4 {The position is equal.} 36. Nxe5 {[%mdl 64] Double Attack} Rxh4 $1 37. Qxd4 Rxh1+ 38. Bd1 Bb3 $1 39. Nc6+ $1 {[%mdl 64] Double Attack} Kc8 $1 40. Na7+ Kb8 41. Nc6+ $1 {[%mdl 64] Double Attack} Kc8 $1 $132 {[%mdl 2048] Black puts up resistance} 42. Nxd8 {Hoping for Kc1.} Rxd1+ 43. Qxd1 Bxd1 {[%mdl 4096] Endgame KB-KN} 44. Ne6 Bxa4 45. Kc1 b6 46. Kd2 c6 47. dxc6 Bxc6 48. Ke3 Kd7 49. Nf8+ Kd6 $1 50. Nxg6 Kc5 51. Ne5 Bb5 52. Nf3 Kc4 53. Nd2+ Kc5 54. b3 Ba6 55. e5 Bc8 56. Nf3 Kb4 57. Nd4 Kc3 58. Ke4 Bb7+ 59. Ke3 {And now e6 would win.} Bd5 {Accuracy: White = 81%, Black = 82%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.24"]
[White "Visakh N R"]
[Black "Chigaev, Maksim"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2518"]
[BlackElo "2616"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,86,27,17,33,29,39,39,36,0,15,12,16,11,20,0,21,21,28,33,56,58,61,0,52,52,44,54,54,46,38,54,53,48,68,75,76,66,60,58,56,53,85,79,103,103,247,175,176,168,302,302,267,16,16,28,48,0,0,0,0,0,0,0,0,-1922,-1922,-1812,-1794,-1750,-1765,-1712,-1568,-953,-946]} 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 c6 6. h3 Bf5 7. Bc4 e6 8. Bd2 Qc7 {B01: Scandinavian Defence.} 9. Nh4 Bg6 10. Nxg6 hxg6 {White is slightly better.} 11. O-O Nbd7 12. Qf3 Bd6 {[#]} 13. Rfd1 $146 ({Predecessor:} 13. Rfe1 O-O 14. Ne4 Nxe4 15. Rxe4 Nf6 16. Re2 Rad8 17. Bb3 c5 18. dxc5 Bxc5 19. Rae1 {½-½ (61) Kovalev,V (2639)-Lumiste,R (2084) Tallinn 2018}) 13... Rh5 14. g4 Rh7 15. Bf1 Nb6 16. Bg5 Be7 17. Bf4 Bd6 18. Bg5 (18. Bxd6 $14 Qxd6 19. Bg2) 18... O-O-O (18... Be7 $11) 19. a4 $14 a5 20. Ne4 Nxe4 21. Bxd8 Qxd8 22. Qxe4 Nd5 23. Rd3 Bc7 24. Re1 Qd6 {[%csl Gc7][%cal Rd6h2]} 25. Bg2 Rh8 26. c4 Nf4 27. Rf3 {Black must now prevent c5.} g5 28. d5 cxd5 (28... Nxg2 $2 29. Kxg2 exd5 30. cxd5 $18) 29. cxd5 e5 (29... Qxd5 $16 30. Qxd5 exd5) 30. Qf5+ Kb8 31. Qxf7 (31. Qxg5 $6 g6 $14) 31... Qb4 (31... g6 $142 32. Rc3 Qd8) 32. Rc3 $18 Bb6 {[#]} 33. d6 $2 ({Not} 33. Qxg7 Bxf2+ 34. Kh1 Bxe1 $14) (33. Ree3 $1 $18) 33... Bxf2+ $1 $11 34. Kf1 Nxg2 35. Qc7+ Ka8 36. Kxf2 Nxe1 $40 {[%mdl 128] Black mounts an attack.} 37. Kxe1 {[%mdl 4096] Endgame d7 is the strong threat. KQR-KQR} Rf8 {( -> ...Qe4+)} (37... Qxa4 $6 38. d7 $16 (38. Rc4 Qa1+ 39. Rc1 Qa4 $16)) 38. Qc5 {Strongly threatening Qxb4.} Qe4+ ({Don't play} 38... Qxa4 $6 39. d7 $16) 39. Kd2 $2 {[%mdl 8192]} (39. Qe3 $11 Qg2 40. Qe2 Qg1+ 41. Kd2) 39... Qg2+ $19 {Black is clearly winning.} 40. Kd3 Rf3+ {[%mdl 64] Double Attack} 41. Kc4 Rf4+ 42. Kd3 {[#]} e4+ $1 43. Kc4 e3+ $1 {Black used his chance. Accuracy: White = 81%, Black = 79%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.25"]
[White "Praggnanandhaa R"]
[Black "Zanan, Evgeny"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2602"]
[BlackElo "2500"]
[Annotator "TA"]
[PlyCount "111"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,111,5,1,7,6,10,20,28,18,21,17,0,0,0,19,18,52,35,68,35,64,30,72,64,95,86,95,95,107,91,107,106,130,130,130,114,122,108,126,120,130,113,141,131,124,97,112,98,107,82,81,71,214,200,184,139,180,183,186,181,169,176,292,338,341,329,310,326,358,370,369,52,93,91,91,90,147,170,167,95,98,106,554,548,883,824,808,782,685,234,798,1004,812,742,1397,552,676,544]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bd3 e5 7. Nde2 Be7 8. O-O O-O 9. Ng3 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} Be6 10. Nd5 Bxd5 11. exd5 {The position is equal.} g6 12. Bh6 Re8 13. c4 Nbd7 14. Rc1 Bf8 {[#]} 15. Be3 $146 ({Predecessor:} 15. Bg5 h6 16. Bd2 a5 17. b3 h5 18. Re1 Bg7 19. h3 Qe7 20. Be3 Qf8 21. Qd2 {1-0 (43) Anand,V (2774)-Keymer,V (2516) Karlsruhe/Baden Baden 2019}) 15... a5 16. b3 Bg7 17. a3 Qc7 18. Bb1 h5 19. h3 Nc5 20. b4 axb4 21. axb4 Na6 22. Qb3 b6 23. Ne2 Qb7 24. Nc3 Nc7 25. Rfd1 Rec8 26. Bd3 Kh7 27. Bg5 Qa7 28. Qb1 Ng8 29. Be2 Bh6 30. h4 Kg7 31. Ne4 Ne8 32. c5 bxc5 33. bxc5 dxc5 (33... Ngf6 $16) 34. d6 $18 Nef6 35. Bc4 Rab8 36. Qd3 $36 {[%mdl 2048] And now d7 would win. Black is under strong pressure.} Qd7 37. Ba6 Rd8 38. Nxc5 Qg4 (38... Qf5 {was called for.} 39. Qxf5 gxf5) 39. Qe3 e4 40. Be2 Qf5 41. Na6 Rb2 42. Rc7 Qe5 43. d7 $2 (43. Qc5 $1 $18 {[%cal Rc5e5]} Qxc5 44. Nxc5) 43... Ra2 44. Rc5 Qb2 45. Bb5 Rxd7 ({Black should try} 45... Bxg5 46. hxg5 Ng4 47. Qc3+ Qxc3 48. Rxc3 Ne7) 46. Bxd7 $16 Rxa6 {[#]} 47. Bh3 (47. Rb5 $1 $18 {[%cal Rb5b2]} Qc2 48. Rc1) 47... Ra3 48. Qf4 {Black must now prevent Rd6.} Qe2 $2 {[%mdl 8192]} (48... e3 $16 {is more resistant.} 49. fxe3 Qe2) 49. Rd6 $18 Qe1+ 50. Kh2 {Bxh6+ would kill now.} Rf3 51. gxf3 {[%cal Rd6f6]} Qxf2+ 52. Bg2 $2 (52. Kh1 Bxg5 53. hxg5 Qxc5 54. gxf6+ Kh7 {[#]} 55. Rd7 $1 {[%mdl 512]}) 52... exf3 $2 (52... Ng4+ 53. Kh3 (53. fxg4 Qxf4+ 54. Bxf4 Bxf4+ 55. Kg1 Bxd6 $14) 53... exf3 54. Bxh6+ (54. Bxf3 Qf1+ 55. Kg3 Qf2+ 56. Kh3 Qf1+ 57. Kg3 Qf2+ 58. Kh3 $11) (54. Qxf3 Qxc5 {[%mdl 64] Double Attack} 55. Qf4 Bxg5 $11) 54... N8xh6 55. Rxg6+ (55. Bxf3 $2 Qf1+ 56. Kg3 Qg1+ {[%mdl 64] Double Attack} 57. Bg2 Qe1+ 58. Kf3 Qf2+ {[%mdl 64] Double Attack} 59. Ke4 f5+ 60. Kd5 Qxf4 $19) (55. Qd4+ Kh7 $11) 55... Kxg6 56. Rg5+ Kh7 57. Qe4+ Kh8 58. Qxf3 Qxf3+ 59. Bxf3 Nf6 60. Bxh5 Nh7) 53. Bxf6+ {White is clearly winning.} Kh7 54. Qxf3 Qxc5 55. Rd5 Qb4 56. Bg5 {Accuracy: White = 72%, Black = 53%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.26"]
[White "Badelka, Olga"]
[Black "Puranik, Abhimanyu"]
[Result "1/2-1/2"]
[ECO "A31"]
[WhiteElo "2404"]
[BlackElo "2597"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,85,33,38,38,51,37,47,37,50,56,67,50,46,41,50,0,43,44,44,40,43,44,39,39,54,51,75,64,68,64,67,61,72,77,81,83,87,95,95,95,84,78,79,68,68,68,68,58,58,58,60,59,59,59,59,44,44,22,23,23,46,17,17,17,17,17]} 1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. e4 Nc6 7. Be3 d6 8. Be2 O-O 9. O-O Bd7 10. h3 Nxd4 11. Bxd4 Bc6 12. Qc2 {B38: Sicilian: Maroczy Bind with 5...Bg7 and 7...0-0.} Qa5 13. a3 Rfc8 14. b4 {[#] White is slightly better.} Qc7 $146 ({Predecessor:} 14... Qd8 15. Rad1 Qf8 16. e5 dxe5 17. Bxe5 b6 18. Rd4 Nh5 19. Bxg7 Nxg7 20. Rfd1 e5 {0-1 (64) Espinosa Aranda,A (2497)-Cori,J (2686) Linares 2019}) 15. Qd3 b6 16. Rac1 a5 {[%cal Ba7a5,Ba5b4][%mdl 32]} 17. Qe3 axb4 18. Nd5 (18. axb4 {seems wilder.} Ra3 19. Bf3 Nd7 20. Bxg7 Kxg7 21. Qd4+) 18... Rxa3 (18... Bxd5 $5 19. cxd5 Nxd5 20. Rxc7 Nxe3 21. Rxc8+ Rxc8 22. fxe3 bxa3 $11) 19. Nxc7 Rxe3 20. Bxe3 {[#] Strongly threatening Nd5.} Rxc7 21. Rb1 $1 Nxe4 22. Rxb4 Nc3 23. Bd3 Be4 24. Bxe4 Nxe4 25. Bxb6 Rc6 26. Be3 {[#] White threatens Rb8+ and mate.} h5 27. Rc1 Nc3 {With the idea ...Ne2+.} 28. Kf1 Na2 29. Rb8+ Kh7 30. Rc2 Nc3 31. Rb7 Bf6 32. g4 hxg4 33. hxg4 {Hoping for g5.} Nd5 $1 34. Bc1 g5 35. Be3 Kg6 36. Ke2 Nc3+ 37. Kd3 Na4 $1 38. Rb5 Nc5+ 39. Bxc5 dxc5 40. Re2 Rd6+ 41. Kc2 Bd4 42. Rxe7 {Black must now prevent f3.} Rf6 43. Kd3 {Accuracy: White = 92%, Black = 96%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.27"]
[White "Cordova, Emilio"]
[Black "Gadimbayli, Abdulla"]
[Result "1/2-1/2"]
[ECO "D30"]
[WhiteElo "2593"]
[BlackElo "2460"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,64,23,10,18,13,20,19,24,0,8,5,6,0,40,35,31,31,46,33,56,47,56,56,54,50,50,41,57,59,72,78,55,47,56,27,48,18,30,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. e3 e6 5. Nbd2 Nbd7 6. b3 b6 7. Bd3 Bb7 8. O-O Be7 9. Bb2 O-O 10. Qe2 Rc8 {D30: Queen's Gambit Declined: Systems without Nc3.} 11. e4 dxe4 12. Nxe4 c5 {[#]} 13. Ng3 $146 ({Predecessor:} 13. Rad1 Nxe4 14. Bxe4 Bxe4 15. Qxe4 Bf6 16. Ne5 cxd4 17. Bxd4 Rc7 18. Rd3 Qa8 19. Qe2 Nxe5 20. Bxe5 Bxe5 21. Qxe5 {1-0 (59) Santiago,Y (2477)-Torres,F (2150) Villa Tehuelches 2017}) 13... Bxf3 14. Qxf3 cxd4 15. Bxd4 Nc5 16. Rad1 {Threatens to win with Bxf6.} Nxd3 17. Rxd3 {[#] And now Bxf6 would win.} Qc7 18. Nh5 e5 19. Nxf6+ Bxf6 20. Be3 Rfd8 21. Rfd1 Rxd3 22. Rxd3 Rd8 23. Rxd8+ Qxd8 24. g3 h6 25. h4 g5 26. h5 Kg7 27. Kg2 Qd3 28. Qb7 e4 {The position is equal.} 29. Qxa7 Qd1 30. Qxb6 Qf3+ 31. Kg1 {[#] aiming for Qd6.} Qd1+ 32. Kg2 Qf3+ {Accuracy: White = 80%, Black = 94%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.28"]
[White "Wagner, Dennis"]
[Black "Murzin, Volodar"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2590"]
[BlackElo "2442"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,119,0,8,6,8,17,36,38,32,32,29,25,31,25,44,44,35,6,4,8,14,-21,-18,-11,-11,-17,0,0,17,-2,0,-21,-8,-41,0,-16,-22,-22,0,0,18,0,0,0,-1,-19,-21,-25,-9,-12,-14,-18,0,-7,0,-4,37,39,68,72,73,71,81,74,71,78,81,67,75,39,114,114,114,114,114,114,114,114,114,114,114,114,114,114,114,115,158,158,130,158,145,139,128,95,99,97,159,143,176,77,85,86,87,87,87,77,77,77,77,77,77,77]} 1. c4 e6 2. g3 d5 3. Bg2 a6 4. b3 Nf6 5. Nf3 Be7 6. Bb2 {A13: English Opening: 1...e6.} O-O 7. O-O Nbd7 8. Nc3 {White is slightly better.} dxc4 9. bxc4 c5 {[#]} 10. d3 $146 ({Predecessor:} 10. e3 Qc7 11. Qc2 Nb6 12. a4 Rd8 13. a5 Nbd7 14. d4 Nb8 15. Na4 Nbd7 16. Rfb1 {1-0 (26) Hild,D (1966)-Hartmann,V (1854) Germany 2012}) 10... Qc7 11. Nd2 Rb8 12. a4 b6 13. Qc2 Bb7 14. Bxb7 Rxb7 15. Rfb1 Nb8 16. Qd1 Nc6 17. Qf1 Ne8 18. Qg2 Nd6 19. Rc1 Nf5 20. Rab1 Nfd4 21. Kf1 Rd8 22. Nf3 Nxf3 23. Qxf3 Nd4 24. Qg2 Rbb8 25. Rd1 Qd7 26. Bc1 Bd6 27. Bg5 f6 28. Bd2 Bc7 29. Rb2 Nc6 30. f4 Nb4 31. Qf3 Re8 32. Be3 a5 33. Rbd2 e5 34. f5 g6 35. g4 gxf5 36. Qxf5 Qxf5+ 37. gxf5 Kf7 38. Kf2 Rg8 39. Rb2 Rg4 (39... e4 $14) 40. h3 $16 Rgg8 41. Rbb1 Bd6 42. Bd2 Rb7 43. Rg1 Rxg1 44. Rxg1 Bf8 45. Rb1 Rd7 46. Be3 Rb7 47. Nd5 Bd6 48. Kf3 Nxd5 49. cxd5 {[%mdl 4096] Endgame KRB-KRB} Ke8 50. Bd2 Rb8 51. Ke4 Kd7 52. Rg1 Re8 (52... b5 $142) 53. Bh6 Be7 54. Rb1 (54. Rg7 $18 {has better winning chances.}) 54... Bd8 {White is better.} 55. Kf3 Rg8 56. e4 Kd6 57. Be3 Kc7 58. Rb2 Be7 59. Bf2 Kb7 60. Rb1 {Accuracy: White = 86%, Black = 85%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.29"]
[White "Frolyanov, Dmitry"]
[Black "Kardashevskiy, Evgeny"]
[Result "0-1"]
[ECO "B34"]
[WhiteElo "2556"]
[BlackElo "2437"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,66,16,38,42,45,35,41,50,43,40,20,70,56,63,63,56,9,29,-12,-12,-22,0,0,-10,-183,-191,-174,-191,-197,-194,-202,-180,-160,-124,-398,-152,-1925,-1869,-1584,-1814,-1697,-1734,-1639,-1618,-29982,-29983,-29983,-29984]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Nd5 Nxd5 8. exd5 Ne7 9. c4 Ng6 10. Qa4 Bd7 11. Qb4 Qb8 {B33: Sicilian: Pelikan and Sveshnikov Variations.} 12. h4 h5 {12...a6 is not played anymore.} 13. Be3 a6 {White is slightly better.} 14. Nc3 Be7 15. g3 {[#]} a5 $146 ({Predecessor:} 15... O-O 16. Be2 b5 17. cxb5 axb5 18. Bxh5 Rc8 19. Rc1 Bd8 20. Bxg6 fxg6 21. O-O Ba5 22. Qb3 Bxc3 23. Rxc3 Rxc3 24. bxc3 {½-½ (24) Pecka,J (2429)-Pravec,L (2380) ICCF email 2016}) 16. Qb3 a4 17. Qc2 f5 18. c5 O-O 19. Bb5 Qe8 20. Qe2 Bxb5 21. Nxb5 f4 $36 {[%mdl 2048] Black has good play.} 22. Nc7 $2 {[#]} (22. Bd2 $1 $11 {and White is okay.}) 22... Qc8 $1 $19 {[%cal Rc8c7]} 23. Nxa8 {Threatens to win with Nb6.} fxe3 24. Qxe3 {Nb6 is the strong threat.} Qxa8 25. O-O Qc8 ({But not} 25... dxc5 26. Rae1) 26. cxd6 Bxd6 27. Qg5 $2 {[%mdl 8192] [#]} (27. Qe4 $17 Qe8 28. Rad1) 27... Rf6 $2 (27... Nf4 $1 $19 {[%mdl 512] is more deadly. Strongly threatening ...Nh3+.} 28. gxf4 Rxf4 29. Qxh5 Rg4+ 30. Kh1 g6) 28. Qxh5 $2 (28. Rae1 $17) 28... Qh3 29. Rac1 e4 30. Rc3 Ne5 31. Qe8+ Kh7 {( -> ...Nf3+)} 32. Qh5+ Rh6 33. Qe2 {[#]} Rxh4 $1 {[%mdl 512] Accuracy: White = 50%, Black = 81%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.30"]
[White "Kunin, Vitaly"]
[Black "Aditya Mittal"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2550"]
[BlackElo "2427"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,71,-15,-7,7,10,16,16,6,11,13,19,22,15,27,20,41,37,44,29,25,24,26,28,23,37,47,27,68,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,229,240,787,776,1816,1796,5261,5257,2682,1260]} 1. e4 c5 2. Nc3 Nc6 3. Nge2 Nf6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. d3 d6 8. h3 Rb8 9. Be3 b5 10. Qd2 b4 11. Nd1 Nd7 {B26: Closed Sicilian: 3 g3, lines with early Be3.} 12. Bh6 Bxh6 13. Qxh6 Nd4 {The position is equal.} 14. Qd2 a5 15. Ne3 {[#]} Bb7 $146 ({Predecessor:} 15... Nb6 16. f4 f5 17. exf5 Nxe2+ 18. Qxe2 gxf5 19. a3 Qd7 20. axb4 axb4 21. g4 e6 22. gxf5 exf5 {1-0 (52) Rublevsky,S (2678)-Areshchenko,A (2687) Olginka 2011}) 16. f4 f5 17. c3 bxc3 18. bxc3 Nxe2+ 19. Qxe2 c4 20. exf5 {[#] Strongly threatening Bxb7.} cxd3 $1 21. Qxd3 {Black must now prevent Bxb7.} Bxg2 22. Kxg2 gxf5 23. Qd5+ Kh8 24. Nxf5 (24. Rf2 $14) 24... Rb2+ $11 25. Rf2 $1 {[%cal Rf2b2]} Rxf2+ 26. Kxf2 {Hoping for g4.} e6 $1 {[%cal Re6d5]} 27. Qxe6 {Re1 is the strong threat.} Qb6+ 28. Kf3 Qc6+ 29. Kg4 Nf6+ 30. Kh4 {Intending Qe7 and mate.} Qf3 {[%csl Gf6][%cal Rf3h5]} 31. g4 {aiming for Qe7.} Qf2+ $2 {[#]} (31... Ne4 $1 $11 {and Black is okay.} 32. Rf1 Qg2) 32. Ng3 $1 $18 {And now Qe7 would win.} ({Worse is} 32. Kg5 Rg8+ 33. Kxf6 Rg6+ 34. Kf7 Rxe6 $11) 32... Nxg4 $2 (32... Nh5 33. Kxh5 Qxg3) 33. Rf1 {White is clearly winning.} ({And not} 33. hxg4 Qh2+ 34. Kg5 Qxg3 $11) 33... Qe3 34. Qxd6 {[%cal Rd6f8]} Rf6 35. Qd8+ Kg7 36. Nh5+ {Accuracy: White = 93%, Black = 70%.} (36. hxg4 $142 Rh6+ 37. Nh5+ Kf7 38. Qd1) 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.31"]
[White "Krishna C R G"]
[Black "Sindarov, Javokhir"]
[Result "1/2-1/2"]
[ECO "A56"]
[WhiteElo "2443"]
[BlackElo "2537"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,96,0,0,0,0,0,0,0,-14,-38,-33,-53,-53,-116,-107,-219,-121,-126,-133,-156,-119,-119,-127,-115,-127,-202,-193,-203,-196,-175,-175,-185,-210,-150,68,50,47,30,412,407,355,377,377,391,445,341,506,452,456,447,454,410,400,417,372,310,303,297,393,400,353,18,41,22,36,22,39,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 c5 3. d5 g6 4. Nc3 Bg7 5. Nf3 O-O 6. e4 d6 7. Bd3 e6 8. O-O exd5 9. cxd5 Bg4 10. h3 Bxf3 11. Qxf3 Nbd7 12. Qd1 a6 13. a4 Re8 14. Bf4 {A70: Modern Benoni: 6 e4 g6 7 Nf3.} c4 15. Bc2 Nc5 {[%cal Rf6e4]} 16. Re1 Qb6 {[#]} 17. Rb1 $146 ({Predecessor:} 17. Ra2 Nfd7 18. Qe2 Ne5 19. Bxe5 Bxe5 20. Qxc4 Rac8 21. a5 Qd8 22. Qb4 Qh4 23. Ne2 {1-0 (52) Ioannidis,E (2292)-Gulamali,K (2309) Budapest 2015}) 17... Nfd7 18. Be3 Qa5 19. f4 (19. Bd2 $15) 19... b5 $36 {[%mdl 2048] Black is in control.} 20. Bd2 (20. axb5 $17 axb5 21. Ra1 Qxa1 22. Qxa1 Rxa1 23. Rxa1) 20... b4 (20... Qb6 $1 $19 21. a5 Qxa5) 21. Na2 Rab8 22. Kh1 Rb7 23. Re2 Reb8 {White must now prevent ...c3.} 24. Nc1 Nf6 25. b3 (25. Be1 $17) 25... c3 $19 26. Be1 Re8 {[%cal Rc5e4]} 27. e5 dxe5 28. fxe5 Nh5 29. Qd4 {Threatening g4.} Nd7 $2 (29... Rbe7 $1 $17 {[%cal Rg7e5]} 30. Na2 (30. Bf2 $2 Bxe5 31. Qc4 Bb8 $19) 30... Rxe5 31. Rxe5 Bxe5 32. Qxb4 Ng3+ 33. Bxg3 Qxb4 34. Nxb4 Bxg3) 30. Nd3 $14 Nxe5 31. Rxe5 Rbe7 $2 {[%mdl 8192]} (31... Bxe5 $11 {and Black stays safe.} 32. Nxe5 Rbe7) 32. Rxe7 $18 Bxd4 33. Rxe8+ Kg7 34. Re4 Qb6 35. a5 Qa7 (35... Qf6 $142 36. Bh4 g5) 36. Nxb4 Bf2 {...Ng3+ is the strong threat.} 37. Bxc3+ f6 {Hoping for ...Ng3+.} 38. Rg4 Ng3+ {[#]} 39. Rxg3 $1 ({Wrong is} 39. Kh2 $2 Qb8 $19) 39... Bxg3 40. Rf1 Qc5 41. Bxf6+ Kh6 42. Rf3 Bc7 {[#]} 43. Rc3 $2 ({Weaker is} 43. Nxa6 Qxc2 44. Nxc7 Qc1+ 45. Kh2 Qxc7+ 46. Rg3 Qxa5 $14) (43. Bc3 $1 $18 Qd6 44. g3) 43... Qd6 $11 {[%csl Gc7][%cal Rd6h2]} 44. Rxc7 $1 Qxc7 45. Nc6 {Strongly threatening Nd8.} Qf4 $1 {[%cal Rf4f1]} 46. Ne5 {White wants to mate with Nf7+.} (46. Bb2 $5 {[%cal Rc6e5]} Qd2 47. Nd4 $16) 46... Qc1+ {The position is equal.} 47. Kh2 {Intending Nf7+ and mate.} Qf4+ $1 {[%mdl 64] Double Attack} ({Not} 47... Qxc2 $2 48. d6 $18) 48. Kh1 {Threatening mate with Nf7+.} Qc1+ {Black escapes into a draw. Accuracy: White = 71%, Black = 66%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.32"]
[White "Sanal, Vahap"]
[Black "Karthik Venkataraman"]
[Result "1-0"]
[ECO "A36"]
[WhiteElo "2569"]
[BlackElo "2483"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,89,14,2,17,15,26,-8,-6,-21,3,0,15,8,6,2,6,2,5,0,12,7,25,8,55,39,92,92,118,116,118,115,116,112,177,185,189,181,170,179,317,170,173,156,132,147,215,219,478,470,460,460,588,579,573,567,768,772,745,766,747,708,719,705,661,647,29989,29990,29990,29991,29993,29994,29994,29995,29996,114]} 1. c4 g6 2. Nc3 c5 3. g3 Bg7 4. Bg2 Nc6 5. d3 d6 6. e3 e5 7. Nge2 Nge7 8. O-O O-O 9. a3 a6 {A36: Symmetrical English vs ...g6: 4 Bg2 Bg7.} 10. Rb1 Rb8 11. b3 $5 {[%mdl 4] Exploring less charted territory.} b5 {The position is equal.} 12. Bb2 {[#]} h6 $146 ({Predecessor:} 12... Be6 13. Nd5 Qd7 14. Re1 Bh3 15. Bh1 Rfc8 16. Qd2 bxc4 17. Nxe7+ Nxe7 18. bxc4 Qc7 {1-0 (83) Popchev,M (2455)-Ostojic,N (2440) Jagodina 1998}) 13. Nd5 Kh7 14. Qc2 Be6 15. f4 f5 16. Kh1 Qd7 17. Ba1 Rf7 18. Rbd1 Qc8 19. Rfe1 Ng8 20. fxe5 Nxe5 ({Black should play} 20... dxe5 $14 21. d4 bxc4) 21. Nef4 $16 Bd7 22. d4 Ng4 23. h3 N4f6 24. dxc5 Qxc5 (24... dxc5 $16 {keeps fighting.} 25. Be5 Rb7) 25. Bd4 $36 {[%mdl 2048] White has strong initiative.} Qc8 26. Nb6 Qc7 27. Nxd7 Rxd7 (27... Qxd7 $142 28. c5 Qc7 29. Bxf6 Rxf6) 28. Ne6 (28. g4 $142) 28... Qc8 29. Nxg7 Rxg7 30. Ba1 Qc5 (30... Qc7 $16 {was worth a try.} 31. Qc3 bxc4) 31. e4 bxc4 $2 {[#]} (31... fxe4 32. Rf1 (32. Bxe4 bxc4 33. b4 Qc7 $16) 32... bxc4) 32. b4 Qb5 33. Rxd6 Rf8 34. exf5 Qxf5 35. Qxc4 Qf2 36. Rf1 Qxg3 37. Rxa6 Rgf7 38. Qc3 Qh4 39. Qd4 Qg3 40. Ra7 g5 {[#]} 41. Qe4+ $1 {[%mdl 576] Pin. White mates.} Kg7 (41... Nxe4 42. Bxe4#) 42. Rxf6 Nxf6 43. Bxf6+ Kxf6 44. Ra6+ Kg7 45. Qg6+ {[%mdl 64] Double Attack. Accuracy: White = 89%, Black = 56%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.33"]
[White "Radovanovic, Mihajlo"]
[Black "Sivuk, Vitaly"]
[Result "1/2-1/2"]
[ECO "D33"]
[WhiteElo "2458"]
[BlackElo "2557"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,51,45,47,38,27,30,47,32,0,10,11,9,0,33,-76,-62,-55,-60,-76,-34,-85,-64,-83,-18,-17,-20,-31,-34,-32,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c5 5. cxd5 exd5 6. g3 Nc6 7. Bg2 cxd4 8. Nxd4 Bc5 9. Nb3 Bb6 {D33: Tarrasch Defence: 6 g3 sidelines.} 10. O-O ({Reject} 10. Bxd5 Nb4 $15) 10... d4 11. Na4 O-O {White is slightly better.} 12. Bxc6 bxc6 13. Nxb6 axb6 14. Qxd4 c5 {[#]} 15. Qc3 $146 (15. Qxd8 $14 {keeps the upper hand.} Rxd8 16. Bg5) ({Predecessor:} 15. Qxd8 Rxd8 16. Bf4 Be6 17. Bc7 Rdc8 18. Be5 Nd5 19. Nc1 f6 20. Bf4 Nxf4 21. gxf4 {½-½ (38) Ben Menachem,I (2316)-Galburd,Y (2450) Israel 2020}) 15... Bb7 $17 {[%mdl 1024] Black has strong compensation.} 16. f3 Nd5 17. Qd2 f5 18. a3 (18. a4 $15) 18... Qe8 19. Qc2 Qa4 (19... Rf6 $17) 20. Bd2 $1 $11 Rae8 {[#] And now ...Ne3 would win.} 21. Rae1 f4 22. Rf2 Rf6 23. Na1 $1 {The position is equal.} Qd4 {Strongly threatening ...fxg3.} 24. Nb3 Qa4 25. Na1 Qd4 {[#] White must now prevent ...fxg3.} 26. Nb3 {Accuracy: White = 83%, Black = 68%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.34"]
[White "Chanda, Sandipan"]
[Black "Zarubitski, Viachaslau"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2552"]
[BlackElo "2432"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,81,-2,-1,2,0,-8,12,-6,14,-41,10,9,14,27,40,31,45,-8,-10,-9,-14,-85,-90,-106,-121,-114,0,0,0,0,0,0,15,17,43,35,50,0,0,0,0,0,0,0,0,8,7,0,5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 e6 5. Nbd2 Nc6 6. c3 Bd6 7. Bg3 O-O 8. Bb5 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Be7 9. Qe2 {[#]} Bd7 $146 ({Predecessor:} 9... Qb6 10. dxc5 Bxc5 11. Rb1 Ne7 12. Bd3 Bd6 13. Bh4 Nd7 14. c4 Ng6 15. Bg3 Nf6 {1-0 (34) Nabaty,T (2692)-Movsesian,S (2633) Czech Republic 2019}) 10. Bd3 Nh5 11. Ng5 ({Better is} 11. Ne5 $11 g6 12. Nxd7 Qxd7 13. Nf3) 11... Bxg5 (11... Nxg3 $2 12. Bxh7+ Kh8 13. Nxf7+ $1 {[%mdl 512]} (13. hxg3 $2 Bxg5 14. dxc5 Bh6 $17) 13... Rxf7 14. hxg3 $18) (11... g6 $15 12. Ngf3 c4) 12. Qxh5 $11 {[%csl Gd3][%cal Rh5h7]} g6 13. Qe2 Qe7 14. h4 Bf6 {[%cal Rc5d4]} 15. f4 (15. dxc5 $14 Qxc5 16. h5) 15... h5 16. Bf2 Bg7 17. dxc5 (17. O-O $11) 17... e5 $17 {White must now prevent ...Bg4.} (17... Qxc5 $6 18. e4 $14) 18. e4 Bg4 19. Nf3 {[#]} dxe4 ({Black should try} 19... Rae8 $1 $17 {...dxe4 is the strong threat.} 20. exd5 e4 {[%mdl 64] Double Attack}) 20. Bxe4 $11 Rfe8 21. O-O-O exf4 22. Rhe1 Qe6 23. Qb5 Qxa2 {Threatens to win with ...a6.} 24. Bd5 $1 {[%cal Rd5a2]} Qa5 $1 {[%cal Ra5b5]} 25. Qxa5 ({Of course not} 25. Qxb7 Reb8 $15) 25... Nxa5 {The position is equal.} 26. b4 Nc6 27. b5 Na5 28. Ng5 Bxd1 ({But not} 28... Bxc3 $6 29. Rxe8+ (29. Bxf7+ Kf8 $16) 29... Rxe8 30. Rd3 $16) 29. Bxf7+ Kf8 30. Bxe8 Rxe8 31. Rxe8+ Kxe8 32. Kxd1 {[%mdl 4096] Endgame KBN-KBN} Nc4 33. Ke2 Kd7 34. Kd3 Nb2+ 35. Ke4 Nd1 36. c6+ bxc6 37. bxc6+ Kxc6 38. Bxa7 Nxc3+ 39. Kxf4 Nd5+ 40. Kf3 Kd6 41. Bb8+ {Accuracy: White = 84%, Black = 92%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.35"]
[White "Moroni, Luca Jr"]
[Black "Buksa, Nataliya"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "2536"]
[BlackElo "2403"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,53,20,10,40,36,35,23,32,19,28,26,31,19,28,27,28,28,53,66,78,87,135,120,135,75,129,136,254,245,481,502,468,474,572,558,584,569,557,553]} 1. c4 e6 2. Nc3 d5 3. d4 Be7 4. Nf3 Nf6 5. Bg5 Nbd7 {[%cal Bb8d7,Bd7f8,Bf8e6][%mdl 32]} 6. cxd5 exd5 7. e3 c6 8. Bd3 Nf8 9. O-O Ne6 {D36: Queen's Gambit Declined: Exchange Variation: Main line (5 Bg5 c6 6 Qc2).} 10. Bh4 g6 11. Rb1 a5 {[#] White has an edge.} 12. Na4 $146 ({Predecessor:} 12. a3 Ng7 13. b4 axb4 14. axb4 Bf5 15. b5 Ra3 16. Bxf5 Nxf5 17. Bxf6 Bxf6 18. Rb3 Ra5 19. bxc6 bxc6 20. Qd3 O-O {½-½ (20) Danner,G (2389)-Zilberman,Y (2383) Vienna 2015}) 12... O-O 13. Rc1 Re8 14. Qb3 b5 15. Nc3 a4 16. Qd1 Nh5 17. Bxe7 Rxe7 18. Ne5 Bd7 {[#]} 19. f4 $1 Nhg7 20. Qf3 ({White should play} 20. f5 {And now f6 would win.} gxf5 21. Ne2 (21. Bxf5 f6 $16)) 20... f5 (20... f6 $142) 21. a3 $16 Qe8 {[#]} (21... Ra6 $16 22. h3 Rb6) 22. Bxb5 $1 $18 {[%mdl 576] Deflection} cxb5 $2 (22... Rb8 {is a better defense.} 23. Bxa4 Rxb2) 23. Nxd5 {White is clearly winning.} Rf7 24. Nxd7 Qxd7 25. Nb6 $1 {[%csl LRa8,LRd7][%mdl 64] Double Attack, Discovered Attack} Qa7 26. Qxa8+ Qxa8 27. Nxa8 {Accuracy: White = 94%, Black = 43%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.36"]
[White "Kozak, Adam"]
[Black "Raja Harshit"]
[Result "1/2-1/2"]
[ECO "A37"]
[WhiteElo "2523"]
[BlackElo "2472"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,61,0,10,0,0,0,3,8,1,0,0,0,0,-3,-3,-8,0,0,39,29,75,14,7,7,21,27,30,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-5,-16,-100,-97,-65,-79,-112,0,0]} 1. Nf3 c5 2. c4 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nc3 d6 6. O-O Bf5 {6...e6 is setting a new trend. Played by Peter Svidler in December 2019.} 7. d3 {A37: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3.} Qd7 8. Rb1 Bh3 9. Bxh3 Qxh3 10. Nd5 {[#] Hoping for Nc7+.} Qd7 11. Bd2 Nf6 {[#]} 12. Nxf6+ $146 ({Predecessor:} 12. Bc3 O-O 13. e4 Rab8 14. Bxf6 Bxf6 15. Nxf6+ exf6 16. d4 Rfd8 17. d5 Ne5 18. Nd2 {½-½ (39) Kutlu,H (2125)-Cheek,C (2118) ICCF email 2016}) 12... Bxf6 13. b4 b6 14. bxc5 bxc5 15. Bh6 Qc7 16. Qd2 (16. e3 $16) 16... Rb8 $11 17. Qf4 Kd7 18. Qg4+ Kd8 19. Rb5 a6 20. Rbb1 Qc8 21. Qe4 Kc7 22. Qe3 Qf5 23. Qd2 Rxb1 24. Rxb1 Rb8 $36 {[%mdl 2048] Black is more active.} 25. Rxb8 Kxb8 26. Be3 Qc8 27. h4 Qb7 28. Ng5 (28. Qc2 $11 {remains equal.}) 28... Qb1+ 29. Kg2 Bxg5 $1 30. hxg5 {[#]} Nb4 (30... Kc7 $1 $17) 31. a3 {Accuracy: White = 79%, Black = 87%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.37"]
[White "Iljiushenok, Ilia"]
[Black "Makarian, Rudik"]
[Result "1-0"]
[ECO "C26"]
[WhiteElo "2519"]
[BlackElo "2414"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,99,14,16,27,14,11,25,35,11,18,6,62,49,102,103,114,92,110,106,113,121,162,108,111,101,98,98,96,105,139,133,131,127,148,144,212,212,212,210,210,210,209,209,170,124,327,327,365,361,327,246,248,255,1792,1718,1726,1616,1718,1562,1474,1474,1159,1148,29953,29959,29964,29967,29967,29968,29968,29968,29968,29969,29970,29971,29971,29972,29971,29975,29976,29977,29977,29977,29975,29975]} 1. e4 e5 2. Nc3 Nf6 3. g3 d5 4. exd5 Nxd5 5. Bg2 Nxc3 6. bxc3 Nc6 7. Nf3 Bd6 8. O-O O-O 9. d4 h6 {C47: Scotch Four Knights and Four Knights with 4 g3.} 10. Re1 {[%cal Rf3e5]} exd4 11. cxd4 {[#]} Bf5 $146 {White has an edge.} ({Predecessor:} 11... Re8 12. Rb1 Rb8 13. Be3 Ne7 14. c4 Nf5 15. c5 Nxe3 16. fxe3 Bf8 17. Ne5 Be6 18. Rxb7 Rxb7 19. Bxb7 {1-0 (35) Laveryd,P (2390)-Jepson,C (2380) Haninge 1997}) 12. Rb1 Rb8 13. d5 Na5 ({Black should play} 13... Nb4 $11 14. Nd4 Bg6) 14. Bb2 c5 (14... Qd7 $14) 15. dxc6 $16 bxc6 16. Qd4 {[%csl Gb2][%cal Rd4g7] [#]} Qf6 17. Qxf6 gxf6 18. Bc3 $40 {[%mdl 128] Black is in trouble.} Bc7 19. Nd4 (19. Rxb8 $18 Rxb8 20. Bxf6) 19... Rxb1 20. Rxb1 Bg6 21. Nxc6 Nxc6 22. Bxc6 Be5 23. Bxe5 fxe5 {[%mdl 4096] Endgame KRB-KRB} 24. Rb7 Rc8 25. Ba4 Bxc2 (25... a5 $16 {might work better.}) 26. Bxc2 $18 ({Don't do} 26. Rxa7 $6 Be4 $16) 26... Rxc2 27. Rxa7 $16 {KR-KR} Kg7 28. a4 {[%cal Ba2a4,Ba4a5,Ba5a6,Ba6a7][%mdl 32]} Ra2 29. a5 Kg6 30. a6 f6 $2 {Black cannot hold the game after this.} (30... Ra1+ $16 {was called for.} 31. Kg2 Kf6) 31. Ra8 $18 h5 32. Kg2 Kf5 33. a7 Ra3 34. h3 Ra2 $2 (34... Ra4 35. h4 e4) 35. g4+ hxg4 36. hxg4+ Ke4 37. Kg3 Ra1 38. Rf8 Rxa7 39. Rxf6 Ra1 40. g5 {White mates.} Rg1+ 41. Kh4 Kd5 42. g6 e4 {[#]} 43. Kh5 $1 Ke5 44. Rf8 Ke6 45. Kh6 Rh1+ 46. Kg7 Rh4 47. Kg8 Kd7 48. g7 Ke7 49. Rf5 Rh2 50. Rf4 {Accuracy: White = 97%, Black = 64%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.38"]
[White "Pranesh M"]
[Black "Stupak, Kirill"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2425"]
[BlackElo "2518"]
[Annotator "TA"]
[PlyCount "146"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,145,28,20,31,45,19,16,12,21,14,34,33,42,43,43,43,41,41,47,44,31,26,50,50,65,62,72,39,43,0,0,0,0,0,0,0,-10,0,0,-20,-25,-24,-18,-35,-25,-103,-103,-106,-60,-51,-42,-102,-102,-100,-95,-79,-83,-156,-138,-171,-152,-151,-160,-179,-181,-190,-169,-179,-120,-120,-119,-119,-119,-123,-89,-94,-87,-90,-94,-129,-129,-129,-102,-99,-134,-132,-136,-131,-64,-137,-131,-142,-130,-132,-137,-1816,-1767,-29962,-29965,-29968,-29969,-29968,-29969,-29969,-29970,-29975,-29976,-29976,-29976,-29976,-29971,-29966,-29961,-29978,-29979,-29980,-29981,-29981,-29982,-29983,-29984,-29984,-29985,-29985,-29986,-29986,-29987,-29994,-29995,-29995,-29996,-29996,-29997,-29997,-29998,-29998,-29999,-29999]} 1. e4 c6 2. d4 d5 3. e5 c5 4. dxc5 Nc6 5. Nf3 Bg4 6. c3 {B12: Caro-Kann: Advance Variation.} a6 7. Be3 Nxe5 8. Nbd2 {The position is equal.} Nf6 9. Be2 Nxf3+ 10. Nxf3 e6 {[#]} 11. Qa4+ $146 ({Predecessor:} 11. Bd4 Be7 12. Bxf6 Bxf3 13. Bxg7 Bxe2 14. Qxe2 Rg8 15. Be5 Bxc5 16. g3 Qg5 17. Rd1 Qf5 18. O-O Rg4 19. Bd4 Bxd4 20. cxd4 Rc8 21. Rd3 h5 22. Rc3 {½-½ (22) Zhigalko,S (2661)-Bernadskiy,V (2565) Minsk 2014}) 11... Qd7 12. Qf4 Bxf3 13. Bxf3 Be7 14. O-O O-O 15. b4 Rfd8 16. Bd4 Qa4 17. Bd1 Qc6 18. Bc2 Nd7 19. Rae1 Bf6 20. Bxf6 Nxf6 21. Re3 h6 22. Qd4 (22. Rh3 {keeps more tension.} a5 23. Rxh6 gxh6 24. Qxf6 e5 25. Qxe5 axb4 26. cxb4 Rxa2 27. Bf5) 22... b6 23. cxb6 {And now a4 would win.} Rab8 24. Bd3 Qxb6 25. a3 Rdc8 26. Ree1 Ne8 27. Bb1 (27. Ra1 $11) 27... Qxd4 $17 28. cxd4 a5 29. bxa5 Ra8 30. Rc1 (30. f4 $1 $15) 30... Rxc1 31. Rxc1 Rxa5 {[%mdl 4096] Endgame KRB-KRN} 32. Rc3 Ra4 33. Bd3 (33. Bc2 $142 Rxd4 34. a4) 33... Nd6 34. f3 Kf8 35. Kf2 Rxd4 36. Ke3 Ra4 {White must now prevent ...d4+.} 37. Kd2 Ke7 38. Kc2 d4 ({Black should play} 38... Nc4 $19 39. Bxc4 dxc4) 39. Kb3 {[#] aiming for Rc7+.} Rxa3+ $1 {[%mdl 512]} 40. Kxa3 dxc3 {KB-KN} 41. Kb3 Kf6 42. Kxc3 Ke5 43. g3 g5 44. Ba6 h5 45. Kd3 Nf5 46. Ke2 h4 47. Kf2 Kd4 48. Bb5 Kc3 ({Black should try} 48... e5 $17 49. Bc6 f6) 49. Be8 (49. f4 $15) 49... hxg3+ 50. hxg3 Nd6 51. Bc6 Kd2 52. f4 $2 {[%mdl 8192] [#] Now White is beyond hope.} (52. Bd7 $17) 52... g4 $1 $19 53. Bd7 Ne4+ {Black mates.} 54. Kg2 Ke1 55. Be8 {[#]} Nd6 $1 56. Bd7 Nf5 57. Be8 f6 58. Bd7 Ne3+ 59. Kg1 Ke2 60. Bc6 e5 61. fxe5 fxe5 62. Be4 Nd1 63. Bf5 Nf2 64. Kg2 e4 65. Bd7 e3 66. Bb5+ Kd2 67. Bf1 e2 68. Kh2 exf1=R 69. Kg2 Ke2 70. Kh2 Nd3 71. Kg2 Ne5 72. Kh2 Nf3+ 73. Kg2 Rg1# {Accuracy: White = 74%, Black = 90%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.39"]
[White "Ivic, Velimir"]
[Black "Vignesh N R"]
[Result "1-0"]
[ECO "B96"]
[WhiteElo "2558"]
[BlackElo "2436"]
[Annotator "TA"]
[PlyCount "123"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,123,7,4,10,7,16,0,0,0,12,4,33,0,0,5,11,6,1,0,0,0,7,22,43,4,27,18,35,26,30,27,41,20,47,39,65,0,0,0,0,0,22,6,0,-4,10,12,35,0,26,10,11,16,16,0,0,0,0,0,0,0,0,0,0,0,130,130,133,89,133,133,315,126,133,96,96,0,130,96,275,101,96,73,130,129,129,130,170,103,103,103,96,96,96,96,96,96,766,756,724,682,1174,1083,2315,1849,5502,2034,2386,1659]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 h6 8. Bh4 Qb6 9. a3 Be7 {B96: Sicilian Najdorf: 6 Bg5 e6 7 f4, lines other than 7...Qb6 and 7...Be7.} 10. Bf2 {Strongly threatening Nxe6!} Qc7 11. Qf3 Nbd7 {[%cal Bb8d7,Bd7c5,Bc5d3][%mdl 32] The position is equal.} 12. O-O-O b5 13. g4 Bb7 14. h4 $1 {[%mdl 4] is more profitable than 14.Bg2 at the moment.} Nc5 {[%cal Rc5e4]} 15. Bd3 d5 {[%cal Rd5e4]} 16. e5 Nfe4 {Hoping for ...Nxc3.} 17. Be1 Nxd3+ 18. Rxd3 O-O-O 19. g5 {[#]} Bc5 $146 ({Predecessor:} 19... hxg5 20. hxg5 Qb6 21. Nce2 Kb8 22. Qg2 g6 23. Rxh8 Rxh8 24. Bb4 Bxb4 25. axb4 a5 {½-½ (37) Anand,V (2768)-Vachier Lagrave,M (2779) Saint Louis 2018}) 20. Nce2 (20. g6 $5) 20... hxg5 21. hxg5 g6 22. Kb1 Kb8 23. Rh6 Rc8 24. Qh3 Rhe8 25. Rh7 Bb6 26. Qe3 ({White should try} 26. Qh2 $14) 26... Rh8 $11 27. Rh6 Qd7 28. Qc1 Rhe8 29. Qd1 a5 30. b4 axb4 31. axb4 Re7 32. Rdh3 Bc6 33. Rh8 Ree8 34. Rxe8 Qxe8 35. Kb2 Bd7 36. Qd3 Rc4 37. c3 Qc8 38. Rh7 Be8 39. Rh8 Qd7 40. Bd2 Nxd2 (40... Nf2 $11 {keeps the balance.} 41. Qf3 Bxd4 42. Nxd4 Ne4) 41. Qxd2 $16 Rc8 42. Qd3 Kb7 43. Rh7 Rc4 $2 {[#]} (43... Rc7 $16 44. Nb3 Rc4) 44. Qh3 (44. f5 $1 $18 {[%cal Rf5e6][%mdl 512] is the precise move to win.} exf5 45. e6) 44... Rc7 45. Rh8 Rc8 46. Rh7 {[%cal Bh8h7,Bh7g7,Bg7g8][%mdl 32]} Rc7 $1 47. Rg7 Kb8 $2 (47... Ka6 $16 {is a better defense.}) 48. Qh8 $2 (48. f5 $1 $18 {[%cal Rf5e6] and the rest is easy.} gxf5 49. g6) 48... Rc8 49. Rg8 Bxd4 (49... Kb7 $142) 50. Nxd4 ({Don't go for} 50. cxd4 $2 Qc6 $19) 50... Qc7 51. Qh3 Qc4 {[#]} 52. Rh8 (52. Qe3 $1 $18) 52... Kc7 {White must now prevent ...Ra8.} 53. Qe3 Ra8 {And now ...Ra2+ would win.} 54. Nb3 Qc6 55. Qc5 Qxc5 56. Nxc5 {[%mdl 4096] Endgame KRB-KRN} Kd8 $2 {[%mdl 8192] [#]} (56... Kc6 $16) 57. Nb7+ $1 $18 {White is clearly winning.} Ke7 58. Nd6 Rb8 59. Kc2 Rd8 60. Kd3 Bd7 61. Rxd8 Kxd8 62. Kd4 {Accuracy: White = 73%, Black = 62%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.40"]
[White "Kozionov, Kirill"]
[Black "Mendonca, Leon Luke"]
[Result "1-0"]
[ECO "E06"]
[WhiteElo "2466"]
[BlackElo "2418"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,107,20,18,31,27,33,22,38,12,49,45,46,46,43,35,64,58,68,61,52,66,102,94,97,78,70,79,77,77,89,78,92,73,67,80,60,46,81,81,81,81,81,81,81,81,81,81,85,85,82,68,115,126,154,139,167,162,161,151,150,106,113,128,169,142,254,254,241,248,210,187,338,352,336,330,458,442,454,448,448,440,382,380,334,358,469,566,5632,5624,4652,12822,4614,4610,29971,29972,29971,4618]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 b6 {E05: Open Catalan: 5 Nf3 Be7.} 8. Bg5 Nd5 9. Bxe7 Qxe7 {The position is equal.} 10. Ne5 c5 11. dxc5 Qxc5 12. Qxc4 Qxc4 13. Nxc4 {[#]} Ba6 $146 ({Predecessor:} 13... Nd7 14. Rd1 Ba6 15. Bxd5 exd5 16. Rxd5 Bxc4 17. Rxd7 Rfd8 18. Rxd8+ Rxd8 19. Nc3 Rd2 {½-½ (34) Yankelevich,L (2445)-Stijve,T (2333) Bad Ragaz 2019}) 14. Ne3 $1 {[%cal Re3d5]} Nd7 15. Nxd5 exd5 16. Nc3 Nf6 17. Rfd1 ({Don't play} 17. Nxd5 Rad8 $11) 17... Rfd8 18. Nxd5 Nxd5 19. Rxd5 Rac8 20. e3 Bc4 21. Rxd8+ Rxd8 $16 {[%mdl 4096] Endgame KRB-KRB} 22. Bf3 Rd2 23. b3 $1 {[%cal Rb3c4]} Be2 24. Rc1 {White threatens Rc8+ and mate.} (24. Bxe2 {keeps more tension.} Rxe2 25. a4 Rb2 26. Rd1 g5 27. Rd5) 24... g6 25. Bxe2 Rxe2 {KR-KR} 26. a4 Rb2 27. Rc3 h5 28. Kg2 Kg7 29. h4 Kf6 30. Kf3 Ke6 31. e4 Kf6 32. Ke3 Ke6 33. f4 Rb1 34. Kd4 Rd1+ 35. Kc4 $1 a6 36. Rd3 Rc1+ 37. Kb4 Rc5 38. Ka3 $1 a5 {[#]} (38... Ke7 $16 {might work better.} 39. Kb2 b5) 39. Kb2 $1 $18 Rc6 {[#]} 40. Rc3 $1 {[%cal Rc3c6]} Rd6 41. Kc2 Ke7 $2 (41... f6 42. Rc8 Rd4) 42. Rc7+ Kf8 43. Rb7 Rd4 44. Rxb6 Rxe4 45. Rb5 Re2+ 46. Kb1 Re3 47. Kb2 Rxg3 48. Rxa5 Rg4 49. Rc5 Rxh4 50. a5 Rxf4 51. a6 Rf6 52. Ra5 Rxa6 53. Rxa6 h4 54. Kc2 {Accuracy: White = 98%, Black = 55%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.41"]
[White "Sreeshwan Maralakshikari"]
[Black "Shubin, Kirill"]
[Result "0-1"]
[ECO "E48"]
[WhiteElo "2440"]
[BlackElo "2427"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,64,32,41,35,37,36,36,15,15,15,20,0,12,2,11,-22,-24,-31,-27,-27,-25,-24,-28,-308,-337,-308,-312,-351,-364,-301,-130,-130,-113,-456,-439,-521,-481,-781,-766,-29989,-29990,-29990,-29979,-29979,-29978,-29996,-29997,-29997,-29998]} 1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 dxc4 7. Bxc4 Nc6 8. O-O Bd6 9. e4 e5 10. d5 {E51: Nimzo-Indian: Rubinstein: 4...0-0 5 Nf3 d5.} Ne7 11. Bg5 Ng6 12. h3 {White is slightly better.} h6 13. Be3 a6 14. a3 {[#]} b5 $146 ({Predecessor:} 14... Nh5 15. Re1 Ngf4 16. Bf1 g5 17. g3 Nxh3+ 18. Bxh3 Bxh3 19. Nxg5 hxg5 20. Qxh5 g4 {1-0 (45) Sabas,J (2215)-Soppe,G (2435) Buenos Aires 1988}) 15. Ba2 Bd7 16. Qc2 Nh5 17. Rac1 f5 18. exf5 Bxf5 19. Ne4 Nhf4 20. Rfe1 $2 {[%mdl 8192] [#]} (20. Bb1 $11 {and White stays safe.}) 20... Nxg2 $1 $19 {[%mdl 512]} 21. Kxg2 {Black must now prevent Bb1.} Nh4+ 22. Nxh4 Qxh4 {[%mdl 64] Double Attack} 23. Bb1 {Strongly threatening Rh1.} Qxh3+ (23... Bxh3+ $19 {is more deadly.} 24. Kg1 Rf3) 24. Kg1 $17 Qf3 {Threatens to win with ...Bh3.} 25. Kh2 $4 {[%mdl 8192] [#]} (25. Bxh6 $17 Qg4+ 26. Kf1) 25... Rf6 $1 $19 {[%mdl 512]} 26. Nxf6+ gxf6 27. Qc6 (27. Rg1+ $142 Kh8 28. Rg3 Qh5+ 29. Kg2 Bxc2 30. Bxc2) 27... e4+ 28. Kg1 {[#]} Bh3 $3 {[%csl Gh3][%cal Rf3g2][%mdl 512] Black mates.} 29. Qxa8+ Kf7 {[%csl Gh3][%cal Rf3g2]} 30. Rxc7+ Bxc7 {[%csl Gh3][%cal Rf3g2]} 31. Bxe4 Qg4+ {[%mdl 64] Zwischenzug} ({But not} 31... Qxe4 $2 {[#]} 32. Qf8+ $1 {[%mdl 512]} Kxf8 33. Bc5+ {[%mdl 64] Discovered Attack} Ke8 34. Rxe4+ Kd7 35. Re7+ Kc8 36. Bd4 $18) 32. Kh1 Qxe4+ {Accuracy: White = 43%, Black = 87%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.26"]
[Round "8.42"]
[White "Pogosyan, Stefan"]
[Black "Can, Emre"]
[Result "1-0"]
[ECO "A26"]
[WhiteElo "2455"]
[BlackElo "2600"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,95,-8,-7,-7,-35,-42,-47,-44,-35,-35,-41,-31,-84,-94,-93,-96,-258,-256,-252,-255,-232,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,373,352,479,444,444,444,475,314,469,463,491,491,1072,1024,1189,588,29961,29965,29963,29963,29964,29965,29947,29947,29973,29973,5636,4133]} 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nf3 Nf6 7. O-O O-O 8. Rb1 a5 9. a3 Re8 10. Bg5 h6 11. Bxf6 Bxf6 12. b4 axb4 13. axb4 Bg7 {A26: English Opening vs King's Indian with ...Nc6 and d3.} 14. Nd2 e4 {Threatens to win with ...exd3.} 15. b5 Ne7 {Black is slightly better.} 16. Qc2 e3 17. fxe3 Nf5 18. Rxf5 (18. Nd1 $1 $15) 18... Bxf5 $17 19. Bxb7 Rxe3 {[#]} 20. Bxa8 $146 (20. Bf3 $17) ({Predecessor:} 20. Nf1 Bxc3 21. Qxc3 Rxe2 22. Bf3 Rea2 23. Bxa8 Qxa8 24. Rb2 Rxb2 25. Qxb2 Bxd3 26. Ne3 {0-1 (46) Recuero Guerra,D (2454)-Miton,K (2609) Linares 2013}) 20... Qxa8 $19 (20... Bd4 21. Kf1 $17) 21. Nde4 {[#] Hoping for Nd5.} Bd4 $1 {[%csl LRd3,LRe2,LRe4,LRg3] ( -> ...Rxe2+)} 22. Nf2 h5 $2 ({Black should play} 22... Bxc3 $1 $19 23. Qxc3 Rxe2) 23. Nd5 $36 {[%mdl 2112] Double Attack. White is more active.} h4 24. Qd2 (24. Nxe3 $2 Bxe3 25. Qd1 Bh3 $19) (24. Nxc7 $2 Qd8 $19) (24. gxh4 Qe8 $17) 24... hxg3 25. Nxe3 gxf2+ 26. Kxf2 Qd8 {Strongly threatening ...Qg5.} 27. Ke1 Qg5 28. Nf1 Qg1 {aiming for ...Bh3.} 29. Qf4 Be5 30. Qf3 Bg4 $1 {[%cal Rg4f3]} 31. Qa8+ Kg7 {...Bc3+ is the strong threat.} 32. Kd2 Qf2 {[#]} 33. Ng3 $1 Bf4+ ({Reject} 33... Bxg3 $6 34. hxg3 Qxe2+ 35. Kc3 $16) 34. Kc3 {And now Qe4 would win.} Bxe2 $2 {[%mdl 8192]} (34... Be5+ $11 {and Black is okay.} 35. Kb3 Qd4) 35. Qa2 $18 Be5+ 36. Kb3 Bxg3 37. hxg3 {[%mdl 4096] Endgame KQR-KQB} Qf3 38. Qa1+ f6 (38... Kf8 $142 39. Re1 (39. Qh8+ Ke7 $18) 39... Qxd3+ 40. Qc3 Qxc3+ 41. Kxc3 Bg4) 39. Qd4 Bxd3 40. Re1 Kf7 (40... d5 $142 41. Re7+ Kf8) 41. Kb4 Be2 42. Qd2 (42. Qd5+ $142 Qxd5 43. cxd5) 42... Bf1 43. Qd5+ Qxd5 44. cxd5 Bg2 45. Rc1 Bxd5 46. Rxc7+ Ke6 47. Kc3 Kf5 48. Kd4 {Never resign too early! Accuracy: White = 71%, Black = 65%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.1"]
[White "Mamedov, Rauf"]
[Black "Suleymanli, Aydin"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "2643"]
[BlackElo "2474"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,58,28,13,27,30,36,23,40,37,50,35,42,36,41,45,60,27,22,16,22,29,16,3,12,0,18,13,7,0,4,6,5,19,7,0,0,0,0,0,25,0,10,0,12,0,10,0,5,0,0]} 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Qc7 6. h3 e6 {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack.} 7. Nf3 Bd6 8. O-O Nge7 {White has an edge.} 9. Re1 a6 {[#] 9...0-0 is setting a new trend.} 10. Nbd2 $146 {[%cal Bb1d2,Bd2f1,Bf1e3][%mdl 32]} ({Predecessor:} 10. b3 h6 11. Ba3 Bxa3 12. Nxa3 Bd7 13. Qd2 O-O 14. Nc2 Rfe8 15. Rac1 Rac8 16. Ne3 {½-½ (40) Goryachkina,A (2495)-Ushenina,A (2422) Stary Smokovec 2018}) 10... f6 11. c4 O-O 12. a3 Ng6 13. Nf1 Qf7 14. Bd2 Nf4 15. Bxf4 Bxf4 16. Ne3 Kh8 17. Qc2 g6 18. Re2 Bd7 19. cxd5 exd5 20. Rae1 Rad8 21. Qc5 Be6 22. Nd1 Bd6 23. Qb6 Bc7 24. Qb3 Bc8 25. Ne3 Bb8 {The position is equal.} 26. Qc3 Bd7 27. Qb3 Bc8 28. Qc3 Bd7 29. Bb1 Bd6 {Accuracy: White = 91%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.2"]
[White "Aravindh, Chithambaram VR."]
[Black "Sjugirov, Sanan"]
[Result "1-0"]
[ECO "A50"]
[WhiteElo "2630"]
[BlackElo "2674"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,95,17,15,17,12,17,22,22,20,16,30,20,25,6,62,75,62,41,43,49,68,68,55,60,95,87,94,93,102,86,88,87,77,72,71,77,75,51,61,56,94,62,79,58,78,37,91,76,76,75,83,90,127,121,155,162,373,368,337,209,175,198,204,185,260,251,331,311,457,467,635,770,774,764,713,656,660,628,670,599,2993,2777,6083,4771]} 1. d4 Nf6 2. c4 c6 3. Nc3 d5 4. cxd5 cxd5 5. Bf4 Nc6 6. e3 Bf5 7. Qb3 Na5 8. Qa4+ {D10: Slav Defence: 3 cxd5 (without early Nf3) and 3 Nc3.} Bd7 9. Qc2 e6 10. Nf3 {The position is equal.} Nh5 11. Be5 Nc6 12. a3 (12. Be2 {looks sharper.} Be7 13. Nd2 Nf6 14. O-O O-O 15. a3) 12... Be7 13. Bd3 Nxe5 (13... f6 $11 14. Bg3 (14. Bxh7 fxe5 15. dxe5 Qb6 $15) 14... g6) 14. Nxe5 $14 Nf6 {[#]} 15. f4 $146 ({Predecessor:} 15. Nxd7 Nxd7 16. Bxh7 Qc7 17. Rc1 Rc8 18. h3 f5 19. Bg6+ Kf8 20. O-O Nf6 21. Bxf5 exf5 22. Qxf5 {0-1 (48) Ju,W (2514)-Sebag,M (2501) Beijing 2013}) 15... g6 16. g4 Bc6 17. h4 Nd7 18. Nf3 Rc8 19. g5 Bd6 20. h5 {[%cal Rh5g6]} Rg8 21. Ke2 a6 22. hxg6 hxg6 23. Rh6 Qe7 24. Qb3 Kd8 25. Nd1 Kc7 26. Nf2 Rh8 27. Rah1 Rxh6 28. Rxh6 Rg8 29. Qc2 Qe8 (29... Rc8 $14) 30. Qc1 {White stays focused until the end.} Bf8 31. Rh7 $36 {[%mdl 2048] Black is under strong pressure.} Bg7 32. Ng4 Qf8 {[#]} 33. b4 $1 Kb6 {[#]} 34. Nfe5 $1 Nxe5 $2 (34... Bxe5 {is a better defense.} 35. fxe5 (35. dxe5 Ka7 $14) (35. Nxe5 Nxe5 36. fxe5 Kc7 $16) 35... Rh8 36. Rxh8 Qxh8) 35. Qc5+ $18 ({Weaker is} 35. Nxe5 Bxe5 36. fxe5 (36. dxe5 Ka7 $16) 36... Kc7 $16) (35. fxe5 Kc7 $16) 35... Qxc5 36. dxc5+ Kc7 37. fxe5 {And now Nh6 would win.} ({Resist} 37. Nxe5 $6 Be8 $16) 37... Kd8 38. Kf3 Ke8 (38... Bb5 $142) 39. Nf6+ Bxf6 40. exf6 {[%mdl 4096] Endgame KRB-KRB} ({Less strong is} 40. gxf6 Ba4 $16) 40... e5 (40... d4+ {might work better.} 41. Ke2 dxe3 42. Kxe3 Rf8) 41. e4 {White is clearly winning.} dxe4+ 42. Bxe4 Rf8 43. Bxc6+ bxc6 44. Ke4 Kd7 {intending ...Ke6.} 45. Kxe5 Re8+ 46. Kf4 Rf8 47. Rh3 Re8 48. Re3 {Accuracy: White = 94%, Black = 52%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.3"]
[White "Yilmaz, Mustafa"]
[Black "Adhiban, B.."]
[Result "1/2-1/2"]
[ECO "A67"]
[WhiteElo "2607"]
[BlackElo "2654"]
[Annotator "TA"]
[PlyCount "220"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,220,50,76,54,68,69,67,64,95,87,143,134,140,115,127,127,122,115,117,120,135,135,135,135,135,135,135,135,135,135,135,135,154,135,135,129,135,103,135,0,135,0,135,135,135,135,135,101,135,135,135,135,135,0,135,-14,-17,-57,-51,-66,-71,-14,-19,-86,-71,-92,-76,-86,-91,-75,-71,-83,-51,-78,-9,-11,-15,-29,-25,-11,0,-97,-98,-100,-89,-89,-89,-88,-88,-88,-88,-93,-63,-81,-78,-66,-42,-66,-14,-10,0,-45,-49,-42,-49,-39,-31,-98,-77,-76,-8,-8,-22,-10,0,0,0,-18,-24,-25,0,0,0,0,0,-8,-8,-8,-8,-16,-16,-16,-16,-16,0,0,0,-16,0,0,0,0,0,0,0,0,0,0,0,-8,-8,-8,-8,-8,0,0,0,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-80,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+ Nfd7 9. a4 Qh4+ 10. g3 Qe7 {[#]} 11. Nf3 $1 {A67: Modern Benoni: Taimanov Variation.} a6 12. Be2 O-O 13. O-O {White is slightly better.} b6 14. Re1 {[#]} Bb7 $146 (14... Nf6 $142) ({Predecessor:} 14... Ra7 15. Bf1 Re8 16. Be3 Rb7 17. Rb1 Qd8 18. Bf2 Nf8 19. h3 h5 20. Qc2 Bd7 {½-½ (40) Neuman,P (2410)-Pribyl,J (2409) Czechia 2002}) 15. Bf1 Re8 16. Be3 Nf6 17. Nd2 Nbd7 18. Bf2 h5 19. h3 Qf8 20. Bg2 Nh7 21. Nc4 Rab8 22. Ra3 Ba8 23. Rb3 Bh8 24. Bf3 Bg7 25. Kg2 Bh8 26. Qd3 Bg7 27. Be3 Bf6 28. Qd2 Bg7 29. Qd3 Bf6 $1 30. Bf2 Bg7 $1 31. Re2 Bf6 32. Qd2 Bg7 33. Be3 Bf6 34. Bg1 Bg7 35. Re1 Bf6 36. Be3 Bg7 $1 37. Rh1 (37. Bf2 $16) 37... Bxc3 $11 38. Qxc3 b5 $1 {[%cal Rb5c4]} 39. axb5 axb5 40. Nd2 f5 41. exf5 (41. Qc2 $1 $11) 41... Nhf6 $17 42. Qc2 ({Not} 42. fxg6 $2 Nxd5 43. Bxd5+ Bxd5+ 44. Kh2 Bxh1 $19) 42... Nxd5 43. Bf2 Qxf5 44. Qxf5 gxf5 45. Ra1 Nb4 46. Nf1 {[#]} Bxf3+ ({Black should try} 46... Bd5 $1 $17 {[%cal Rd5b3]} 47. Rxb4 Bxf3+ 48. Kxf3 cxb4) 47. Kxf3 $11 Nb6 48. Ne3 Nc4 {White must now prevent ...Nd2+.} 49. Rd1 $1 Rf8 $36 {[%mdl 2048] Black is pushing.} 50. Be1 (50. Rc3 $11) 50... Nxe3 $17 51. Rxe3 {Hoping for Bxb4.} Nc2 52. Red3 Nd4+ 53. Kg2 b4 54. Bf2 Nb5 55. Rd5 Rf6 56. Kf3 Kf7 57. Ra1 Rb7 58. Rdd1 Re6 ({Black should play} 58... Ke7 $15) 59. Rd5 $11 Rf6 60. Rdd1 $1 Nc7 61. g4 fxg4+ 62. hxg4 Ne6 63. Be3 (63. gxh5 $15 Rxf4+ 64. Kg2) 63... hxg4+ $17 64. Kxg4 Ng7 (64... Rg6+ $17 65. Kf3 Ng7) 65. f5 $1 $11 Nxf5 (65... Re7 $5 66. Bg5 $8 Nxf5 $11) 66. Bg5 Kg6 67. Bxf6 Ne3+ {[%mdl 64] Double Attack} 68. Kf3 Nxd1 69. Bd4 $1 Nxb2 70. Bxb2 {[%mdl 4096] Endgame KRB-KR} Kf5 71. Rh1 Rf7 72. Ke3 Ke6 73. Kd3 Rf4 74. Rh6+ Kd5 75. Rh5+ Kc6 76. Rh6 Kd5 77. Rh5+ Kc6 78. Rh6 Rf3+ 79. Kc4 Re3 80. Bg7 Re7 81. Rg6 Re1 82. Rh6 Re8 83. Bb2 Re2 84. Bg7 Rc2+ 85. Kd3 b3 {...c4+ is the strong threat.} 86. Bc3 Rc1 87. Kd2 Rc2+ 88. Kd3 Rc1 89. Kd2 Rg1 90. Bh8 Rg2+ 91. Kc1 $1 Rc2+ 92. Kb1 Rd2 93. Bc3 Re2 94. Bg7 c4 95. Bc3 Kc5 96. Rh5+ Kc6 97. Rh6 Kd5 98. Bb4 Re6 99. Rxe6 Kxe6 {KB-K3P} 100. Kb2 d5 101. Bc5 Ke5 {And now ...d4 would win.} 102. Kc3 Ke4 103. Bb6 Kf4 104. Bc5 Kf3 105. Bb6 (105. Bd4 $11 {keeps the balance.}) 105... Ke2 (105... Ke4 $17) 106. Bd4 {The position is equal.} Ke1 107. Bc5 Kd1 108. Be3 Ke2 109. Bc5 Kd1 110. Be3 Ke2 {Accuracy: White = 87%, Black = 87%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.4"]
[White "Shimanov, Aleksandr"]
[Black "Jumabayev, Rinat"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2587"]
[BlackElo "2646"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,108,0,13,-20,32,9,12,14,19,0,0,11,7,0,0,0,0,0,0,0,0,-35,-39,-87,-93,-87,-83,-90,-71,-85,-74,-66,-69,-65,-51,-48,-35,-39,-14,-11,-9,-20,-5,-8,-12,-26,-12,-12,-12,-32,-29,-25,-30,-95,-85,-114,-124,-206,-206,-206,-206,-228,-140,-382,-386,-391,-222,-265,0,-389,-367,-452,-452,-409,-334,-341,-343,-311,-304,-452,-400,-597,-597,-6093,-5937,-2030,-411,-1959,-2628,-1408,-1714,-12363,-6111,-29971,-29974,-29974,-29975,-29969,-29969]} 1. d4 d5 2. Bf4 c5 3. e3 Nc6 4. c3 Nf6 5. Nd2 Bf5 6. Ngf3 e6 7. Qb3 {D00: 1 d4 d5: Unusual lines.} Qb6 (7... Qc8 $11) 8. Qxb6 axb6 9. Bb5 {The position is equal.} Nd7 10. Ne5 Ndxe5 11. Bxe5 Kd7 12. O-O {[#]} Bd6 $146 ({Predecessor:} 12... f6 13. Bg3 Be7 14. Rfe1 Bg6 15. dxc5 bxc5 16. e4 Bd6 17. Bxd6 Kxd6 18. Rad1 Kc7 19. exd5 exd5 {0-1 (51) Sahil,T (2224)-Dietmayer Kraeutler,M (2311) Krakow 2018}) 13. Bxd6 Kxd6 14. Rfd1 Bc2 15. Rdc1 Bg6 16. Rd1 c4 17. e4 Na7 18. Ba4 Bxe4 19. Nxe4+ dxe4 20. Re1 f5 21. Bd1 Nc6 22. f3 e5 23. d5 Nb8 {Hoping for ...exf3.} 24. fxe4 fxe4 25. Rxe4 b5 26. b3 cxb3 (26... Kxd5 27. Bf3 $16) 27. Bxb3 Nd7 $36 {[%mdl 2048] Black fights for an advantage.} 28. Rg4 g6 29. Rb4 Ra5 30. c4 Rf8 31. cxb5 Nc5 32. Bc2 {[#]} (32. a4 $11 {remains equal.}) 32... Ra3 $1 $17 33. h4 e4 34. Bxe4 (34. Rf1 $17 {was worth a try.} Rxf1+ 35. Kxf1) 34... Rf4 $1 $19 {[%csl LRe4,LRh4][%mdl 64] Double Attack} 35. Re1 Rxh4 (35... Rxe4 36. Rexe4 Nxe4 37. Rxe4 $14) 36. Re2 Ra8 ({Don't play} 36... Nxe4 37. Rexe4 Rxe4 38. Rxe4 $17) (36... Rxe4 37. Rexe4 Nxe4 38. Rxe4 $17) 37. a3 $2 (37. Rc4 $17) 37... Rxa3 (37... Rxe4 38. Rexe4 Nxe4 39. Rxe4 $15) 38. Rc4 Rf4 (38... Nxe4 39. Rexe4 Rxe4 40. Rxe4 $17) (38... g5 $142 39. Rxc5 Kxc5) 39. Kh2 Rh4+ ({Much less strong is} 39... Rxe4 40. Rexe4 Nxe4 41. Rxe4 $17) (39... Rb3 $142 40. g3 Rxe4 41. Rexe4 Nxe4 42. Rxe4 Rxb5 43. Re6+ Kxd5) 40. Kg1 g5 ({Weaker is} 40... Nxe4 41. Rexe4 Rxe4 42. Rxe4 $17) (40... Rxe4 41. Rexe4 Nxe4 42. Rxe4 $17) 41. Rxc5 Kxc5 {[%mdl 4096] Endgame KRR-KRB} 42. d6 Kxd6 43. Bxb7 Ra1+ 44. Kf2 Rf4+ 45. Kg3 (45. Bf3 {was the only defense.}) 45... h5 46. Rd2+ (46. Re4 $142 h4+ 47. Kh2) 46... Kc7 47. Bc6 Rh1 {[%csl Gf4,Gg5,Gh1][%cal Rh5h4]} 48. Bf3 h4+ 49. Kf2 g4 {[%mdl 64] Pin} 50. Ke3 {[#]} Rxf3+ $1 {[%mdl 512]} 51. gxf3 g3 52. Rg2 h3 {Black mates.} 53. Rxg3 h2 54. Rg7+ Kb6 {Accuracy: White = 58%, Black = 87%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.5"]
[White "Paravyan, David"]
[Black "Petrosyan, Manuel"]
[Result "1/2-1/2"]
[ECO "C65"]
[WhiteElo "2629"]
[BlackElo "2590"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,80,17,25,18,20,14,19,-9,0,-6,-11,0,2,0,0,0,0,0,2,0,45,34,47,37,80,75,73,74,85,75,75,63,65,54,64,28,56,46,37,21,27,26,62,34,42,40,61,42,29,17,28,33,35,16,18,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bxc6 dxc6 6. Nbd2 {C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5.} O-O {6...Nd7 is the recent fashion. Played by Hikaru Nakamura in February 2020.} 7. Nc4 Nd7 8. Ne3 Re8 {[#]} 9. h4 $146 ({Predecessor:} 9. g4 Bxe3 10. Bxe3 Nf8 11. Rg1 Qd6 12. Qd2 a5 13. Nh4 Ne6 14. Nf5 Qb4 15. c3 {½-½ (55) Sunilduth Lyna,N (2611)-Anton Guijarro,D (2674) Khanty-Mansiysk 2019}) 9... Nf6 10. Nh2 Bb4+ 11. Kf1 h5 12. Qf3 Bc5 13. Nf5 Bxf5 14. Qxf5 Qd7 15. Qxd7 Nxd7 16. Bd2 Nf8 17. g4 hxg4 18. Nxg4 f6 19. h5 Be7 20. f4 exf4 21. Bxf4 Ne6 22. Bg3 Rad8 23. Kg2 Nd4 24. c3 ({But not} 24. Bxc7 Rd7 $17) 24... Ne6 25. d4 Bd6 26. Rae1 c5 {[#] And now ...Bxg3 would win.} 27. d5 Nf4+ 28. Bxf4 Bxf4 29. h6 Bd2 30. Reg1 Bg5 31. Kf3 g6 {The position is equal.} 32. e5 Kh7 33. exf6 {Black must now prevent Re1.} Rxd5 {Strongly threatening ...Rf5+.} 34. Rd1 Rf5+ {[%mdl 64] [#] Double Attack} 35. Kg3 Bf4+ 36. Kg2 $1 Re2+ 37. Kf3 Re8 38. Kg2 Re2+ 39. Kf3 Re8 {( -> ...Bh2+)} 40. Rd7+ Kh8 {Accuracy: White = 91%, Black = 88%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.6"]
[White "Sarana, Alexey"]
[Black "Aleksandrov, Aleksej"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2656"]
[BlackElo "2592"]
[Annotator "TA"]
[PlyCount "228"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,228,0,2,0,4,0,12,14,17,-17,-16,-27,0,0,17,18,59,70,60,55,54,63,68,61,72,31,52,32,66,40,201,211,212,206,212,203,180,179,191,187,195,185,192,193,182,191,170,160,157,86,86,100,110,100,130,33,150,158,156,148,152,152,145,-283,-296,-283,-284,-321,-317,-313,-304,-314,-310,-310,-289,-286,-214,-239,-234,-232,-206,-177,-33,-104,-98,-233,-29,-187,-187,-193,-193,-202,-202,-536,-536,-536,-536,-536,-529,-529,-529,-529,-529,-529,-529,-529,-8,-529,-529,-529,-529,-529,-529,-529,-529,-12808,-510,-12811,-529,-12804,-12811,-12820,-549,-12819,-12816,-12829,-12832,-12832,-12834,-12827,-12831,-12847,-12847,-29947,-29949,-29948,-29950,-29949,-29951,-29953,-29955,-29956,-29952,-29957,-29956,-29955,-29955,-29954,-29956,-29955,-29955,-29954,-29957,-29957,-29958,-29956,-29959,-29957,-29957,-29958,-29957,-29962,-29964,-29961,-29963,-29959,-29961,-29961,-29962,-29960,-29962,-29959,-29954,-29965,-29950,-29960,-4137,-29967,-29968,-29968,-29966,-29966,-29967,-29967,-29968,-29968,-29969,-29967,-29970,-29969,-29970,-29969,-29971,-29970,-29971,-29971,-29970,-29995,-29969,-29986,-29973,-29991,-29983,-29972,-29971,-29972,-29974,-29995,-29971,-29996,-29997]} 1. g3 d5 2. Bg2 Nf6 3. Nf3 e6 4. O-O Be7 5. c4 O-O 6. b3 c5 7. Bb2 Nc6 8. e3 b6 9. Qe2 Bb7 10. d3 Re8 11. Nbd2 {[#] A14: English Opening: 1...e6 with b3 by White.} a5 $146 ({Predecessor:} 11... Bf8 12. Rfd1 e5 13. cxd5 Nxd5 14. a3 Qd7 15. Rac1 f6 16. Ne4 Na5 17. Qc2 Rac8 18. Ba1 Qf7 {½-½ (41) Jianu,V (2565)-Shengelia,D (2543) Warsaw 2013}) 12. a4 Bf8 13. Rad1 {The position is equal.} Nd7 14. Nh4 d4 15. f4 dxe3 16. Qxe3 Qc7 17. Ne4 {[%cal Bd2e4,Be4c3,Bc3b5][%mdl 32]} f5 18. Nc3 Rad8 19. Nb5 Qc8 20. h3 Ndb8 21. Rf2 Na6 22. g4 Nab4 23. Qg3 Qd7 24. Kh2 g6 $2 (24... Qf7 $14) 25. gxf5 $1 $18 exf5 {[#]} 26. Nxg6 $1 {[%mdl 512]} hxg6 27. Qxg6+ Bg7 28. Rg1 $1 {Bxg7 is the strong threat.} Re7 29. Bf6 Qe6 30. Bd5 $1 Rxd5 ({Avoid the trap} 30... Nxd5 $2 31. cxd5 Rxd5 32. Qh6 $18) 31. cxd5 Nxd5 32. Bxe7 {[%csl Gg1][%cal Rg6g7]} Qxg6 33. Rxg6 Ncxe7 34. Rg5 (34. Rd6 $142 $1) 34... Kf8 $16 35. Nd6 Ba6 36. Nxf5 Bf6 37. Rf3 (37. h4 $16) 37... Nb4 (37... Nc6 $1 $14) 38. Nxe7 Kxe7 39. Rg8 Bxd3 40. Rb8 $1 Bd4 41. Rxb6 $2 {[%mdl 8192]} (41. Rb7+ $1 $16 {and life is bright.} Kf8 42. Rxb6) 41... c4 $1 $19 42. Rb7+ Kd6 $1 43. Rg3 {Threatens to win with bxc4.} Be4 44. Rb5 c3 45. Rxc3 Bxc3 46. Rxa5 Bd5 47. h4 Bxb3 48. h5 Nd5 49. Ra6+ Kc5 50. h6 Nxf4 ({Better is} 50... Bc2 $19 {aiming for ...Nc7.} 51. Ra8 Be4) 51. Ra8 (51. h7 $15) 51... Be5 $1 $17 {White must now prevent ...Ne2+.} 52. Kg3 (52. h7 $17 Ng6+ 53. Kg1) 52... Bd1 $2 (52... Nd5+ $19 53. Kh4 Bc2 54. Rc8+ Bc7) 53. a5 $2 (53. h7 $11 Ng6+ 54. Kf2) 53... Ne6+ 54. Kf2 Nc7 $1 {[%cal Rc7a8]} 55. Rb8 Bc2 56. Kf3 $2 (56. Rg8 {is more resistant.}) 56... Bc3 $19 57. a6 Nxa6 58. Rc8+ Kb4 59. Kf4 Bd2+ 60. Ke5 Nc5 61. Kd5 Bb3+ 62. Kd4 {[#]} Bc3+ $1 ({Weaker is} 62... Ne6+ 63. Ke5 $17) 63. Ke3 {[#]} Bc2 $1 64. Rg8 Kc4 65. Rg4+ Kd5 66. Rh4 {intending h7.} Bh7 67. Kf4 Ke6 (67... Bd2+ $142 68. Kf3 Ke6) 68. Rh5 (68. Ke3 $142) 68... Ne4 69. Kf3 Bd2 70. Rh1 Nf6 71. Rh4 Bg5 72. Ra4 Bxh6 73. Ra6+ Ke5 74. Ra5+ Nd5 75. Ra4 Bc2 76. Rc4 Bd1+ 77. Kf2 Be3+ 78. Kg3 Nf6 79. Rc8 Ne4+ 80. Kg2 Be2 81. Rf8 Nf6 82. Kg3 Kf5 83. Rf7 Bc5 84. Kg2 Kg5 85. Rc7 Ne4 86. Rg7+ Kf4 87. Rf7+ Ke3 88. Rf5 Bd6 89. Rf7 Ng5 90. Rf6 Bf3+ 91. Kf1 Ne4 92. Re6 Bg4 93. Re8 Kf3 94. Ke1 Kf4 95. Kf1 Bf3 96. Rd8 Be7 97. Rb8 Bh4 (97... Kg3 $142 98. Rg8+ Bg4 99. Re8 Nd2+ 100. Ke1 Bb4 101. Re3+ Kh2 102. Rd3 Nc4+ 103. Kf1 Ba5 104. Kf2 Bc7 105. Kf1 Bb6 106. Ke1 Kg2 107. Rd2+ Nxd2 108. Kxd2 Kf3 109. Kd3 Bd7 110. Kc4 Ke4 111. Kc3 Bb5 112. Kb4 Ba6 113. Kc3 Ba5+ 114. Kc2 Bb5 115. Kb3 Kd3 116. Kb2 Bd2 117. Kb1 Kc3 118. Ka2 Bc1 119. Kb1 Kd2 120. Ka2 Kc2 121. Ka1 Bb2+ 122. Ka2 Bc4#) 98. Rb2 Bf6 {Black mates.} 99. Rb8 Ng3+ 100. Kf2 Bd4+ 101. Ke1 Bc3+ 102. Kf2 Ne4+ 103. Kf1 Kg3 104. Rg8+ Bg4 105. Re8 Nd2+ 106. Ke1 Nc4+ 107. Kf1 Bd2 108. Kg1 Ne3 109. Re7 Bh3 110. Kh1 Nf5 111. Re2 Bc1 112. Kg1 Nh4 113. Rc2 Nf3+ 114. Kh1 Bd2 {Accuracy: White = 60%, Black = 70%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.7"]
[White "Rakhmanov, Aleksandr"]
[Black "Smirin, Ilia"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2645"]
[BlackElo "2615"]
[Annotator "NA RC"]
[PlyCount "9"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/6000+30:20/3000+30:900+30"]

{[%evp 8,9,26,11]} 1. Nf3 {[%emt 0:00:00]} Nf6 {[%emt 0:08:19]} 2. g3 {[%emt 0:00:00]} g6 {[%emt 0:00:05]} 3. Bg2 {[%emt 0:00:00]} Bg7 {[%emt 0:00:13]} 4. O-O {[%emt 0:00:01]} O-O {[%emt 0:00:26]} 5. d4 $11 {[%emt 0:00:13]} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.8"]
[White "Sethuraman, S.P."]
[Black "Svane, Rasmus"]
[Result "1/2-1/2"]
[ECO "C84"]
[WhiteElo "2641"]
[BlackElo "2608"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,72,16,25,12,1,4,3,5,5,0,0,0,1,3,2,0,8,6,11,0,8,6,3,5,10,6,0,8,10,7,0,0,10,0,0,0,0,0,0,0,0,0,20,20,18,20,20,16,22,14,26,27,27,27,42,12,12,6,3,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 d6 8. Bd2 {8.a3 is setting a new trend. C84: Closed Ruy Lopez: Unusual White 6th moves.} Bg4 9. c3 Na5 10. Bc2 c5 11. Bc1 O-O 12. h3 Bh5 13. Re1 {[#]} Qc7 $146 ({Predecessor:} 13... h6 14. Nbd2 Re8 15. Nf1 Bg6 16. g4 Nh7 17. Ng3 Ng5 18. Nxg5 Bxg5 19. Bxg5 Qxg5 {½-½ (42) Tiemann,H (2312)-Laurenc,P (2360) ICCF email 2018}) 14. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1g3][%mdl 32]} Rad8 15. Nf1 d5 {[#] And now ...dxe4 would win.} 16. exd5 Rxd5 17. Ng3 Bg6 18. Qe2 {[%cal Rf3e5]} Re8 19. Nh4 ({Avoid the trap} 19. Nxe5 $2 Bd6 $19) 19... c4 20. dxc4 Nxc4 21. Nxg6 hxg6 22. a4 b4 23. b3 Na5 24. c4 Rdd8 25. Bb2 Bc5 26. Rad1 ({Don't go for} 26. Bxe5 $2 Qb6 $19) 26... Rxd1 27. Rxd1 Nc6 28. Ne4 Nxe4 29. Bxe4 Nd4 30. Bxd4 exd4 31. Qf3 Re6 32. Bd5 Rf6 33. Qd3 Qe5 34. a5 g5 {The position is equal.} 35. g3 g6 36. Kf1 Kg7 {Accuracy: White = 96%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.9"]
[White "Deac, Bogdan-Daniel"]
[Black "Idani, Pouya"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2626"]
[BlackElo "2577"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,66,9,4,10,11,11,11,12,14,4,14,10,15,0,0,0,17,30,47,35,22,11,16,18,35,8,20,0,2,-16,0,-9,-6,0,29,31,34,0,0,13,77,68,82,0,0,0,0,16,42,47,56,55,50,0,0,0,32,0,0]} 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 {A13: English Opening: 1...e6.} c5 7. Ne5 Qc8 8. Qd3 Nc6 9. Nxd7 Nxd7 10. Nc3 Be7 11. Qb5 a6 12. Qa4 Nd4 {[#]} 13. e3 $146 ({Predecessor:} 13. O-O O-O 14. d3 Nb6 15. Qd1 Rd8 16. Bd2 Qd7 17. Rc1 Rac8 18. b3 h6 19. Kh1 {1-0 (33) Aronian,L (2797)-Sethuraman,S (2646) Caleta 2018}) 13... Nf5 14. O-O O-O 15. d3 Rd8 16. Rd1 Qc7 17. Qc2 Ne5 18. Ne4 Rd7 19. f4 Nc6 20. a3 Qb6 21. Rb1 c4 22. d4 $1 Na5 23. Bd2 Nb3 24. g4 Nfxd4 (24... Nh4 $11 {remains equal.}) 25. exd4 $16 Qxd4+ 26. Kf1 ({Better is} 26. Kh1 $16 Rad8 27. Bf3) 26... Rad8 $1 $11 27. g5 {Hoping for Be1.} Bc5 $1 $36 {[%mdl 2048] [#] ( -> ...Qg1+). White is under pressure.} 28. Ke2 $1 Bb6 29. Qc3 Ba5 30. Qxd4 Nxd4+ 31. Ke1 (31. Kf2 $5 {[%cal Rd2a5]} Bb6 32. Rbc1 $11) 31... Nc2+ 32. Ke2 Nd4+ $1 33. Ke1 (33. Kf2 $5 {[%cal Rd2a5]} Bb6 34. Ke3 $11) 33... Nc2+ {Accuracy: White = 86%, Black = 86%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.10"]
[White "Zhou, Jianchao"]
[Black "Asadli, Vugar"]
[Result "0-1"]
[ECO "E12"]
[WhiteElo "2622"]
[BlackElo "2538"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,77,4,26,37,34,18,30,24,27,32,16,0,0,0,60,25,37,22,35,21,21,20,28,19,37,37,37,31,40,0,29,32,15,30,27,0,0,0,-5,0,-8,-54,-57,-60,-48,-57,-58,-56,-57,-72,-66,-88,-97,-138,-140,-338,-335,-332,-334,-748,-748,-1032,-1031,-931,-895,-29990,-29990,-29990,-29990,-29996]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Bf4 g6 6. Nc3 {E12: Queen's Indian: Unusual White 4th moves, 4 a3, 4 Nc3 Bb7 5 a3 and 4 Nc3 Bb7 .} Bg7 7. Qc2 Nh5 8. Bg5 {White has an edge.} f6 9. Bd2 {Black must now prevent g4.} f5 $1 {[#]} 10. d5 $146 ({Predecessor:} 10. Bg5 Nf6 11. e3 O-O 12. Be2 d6 13. O-O Nbd7 14. Rac1 h6 15. Bh4 Rc8 16. Nd2 {1-0 (41) Deidun,J (2239)-Sladek,V (2080) ICCF email 2006}) 10... O-O 11. Rd1 c5 (11... Qe8 $11) 12. g3 (12. Bg5 $5 {[%cal Rg5d8]} Bf6 13. Bh6 $14) 12... exd5 13. cxd5 Na6 14. Bg2 d6 15. O-O Nc7 16. Rfe1 Qd7 ({Of course not} 16... Nxd5 $6 17. Qb3 $16) 17. e4 fxe4 18. Ng5 Rae8 19. Ngxe4 (19. Bh3 {looks sharper.} Qd8 20. Ngxe4 h6 21. Be3 Kh7 22. Bg2) 19... Bd4 ({Don't blunder} 19... Nxd5 $2 20. Qb3 $18) 20. Be3 Bxe3 21. Rxe3 Ng7 22. b4 (22. g4 $5) 22... Nf5 23. Red3 Ba6 $36 {[%mdl 2048] Black has some pressure.} 24. R3d2 Nd4 25. Rxd4 cxd4 26. Rxd4 Nb5 27. Nxb5 Bxb5 ({Much weaker is} 27... Qxb5 28. Bh3 $14) 28. h4 Qe7 29. Kh2 Rc8 {[%cal Be8c8,Bc8c7,Bc7c2][%mdl 32]} 30. Qb2 Bd7 31. b5 Bf5 32. f4 $2 {This move loses the game for White.} (32. Bh3 $17) 32... Rc7 $19 33. Rb4 Rfc8 34. Nf6+ $2 (34. Qf6 Bxe4 35. Qxe7 Rxe7 36. Bxe4) 34... Kf7 {...Rc2! is the strong threat.} 35. Nxh7 {[#]} Rc2 $1 {[%mdl 512]} 36. Ng5+ Kg8 {( -> ...Qe2!)} 37. Qa1 {[#]} Qe2 $1 {[%csl Gc2][%cal Re2g2][%mdl 512]} 38. Qg1 Rc1 39. Qd4 {Accuracy: White = 58%, Black = 93%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.11"]
[White "Artemiev, Vladislav"]
[Black "Antipov, Mikhail Al."]
[Result "1/2-1/2"]
[ECO "A10"]
[WhiteElo "2728"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,77,20,7,16,8,8,12,9,10,20,0,0,0,0,0,0,0,11,7,6,0,12,0,12,0,2,0,19,4,0,0,0,0,0,0,0,0,0,0,0,0,18,2,2,0,2,2,4,7,5,0,0,0,4,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 g6 2. Nf3 Bg7 3. d4 Nf6 4. g3 c6 5. Bg2 d5 6. Nbd2 O-O 7. O-O a5 $1 {[%mdl 4] is more profitable than 7...Bf5 at the moment. Played by Maxime Vachier Lagrave in January 2020.} 8. b3 {The position is equal.} a4 {D78: Fianchetto Grünfeld: 6 0-0 c6.} 9. Ba3 Re8 10. Re1 Ne4 11. e3 Bg4 {[#]} 12. cxd5 $146 ({Predecessor:} 12. Qc1 Nxd2 13. Nxd2 e5 14. dxe5 Bxe5 15. Bb2 Bxb2 16. Qxb2 {½-½ (28) Laurusas,T (2439)-Malisauskas,V (2431) Vilnius 2016}) 12... cxd5 13. h3 Bxf3 14. Bxf3 axb3 15. axb3 f5 16. Nxe4 fxe4 17. Be2 Nc6 18. Qd2 h5 19. Kg2 h4 20. Bc5 Rc8 21. Bg4 e6 22. gxh4 Ne5 23. dxe5 Rxc5 24. Qb4 Rc7 25. Qd6 Qxd6 26. exd6 Rd7 27. Ra7 Be5 28. Rd1 {[#] Strongly threatening Rxd5!} Rf7 29. h5 Kg7 30. Ra5 Bxd6 31. Rb5 {With the idea Rb6.} Rfe7 32. Rb6 Rd8 33. hxg6 Kxg6 34. Ra1 Kf6 35. Rb5 Ke5 36. Ra7 Rb8 37. Rba5 Ree8 38. Rb5 Re7 39. Rba5 {A rather calm draw. Accuracy: White = 100%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.12"]
[White "Sargissian, Gabriel"]
[Black "Sargsyan, Shant"]
[Result "1-0"]
[ECO "D86"]
[WhiteElo "2689"]
[BlackElo "2594"]
[Annotator "TA"]
[PlyCount "123"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,123,24,18,0,0,0,52,33,28,0,15,32,22,29,9,10,25,29,122,155,141,126,122,125,127,129,121,128,112,97,122,112,104,108,88,86,89,94,77,0,0,0,0,0,0,0,0,0,370,355,315,147,152,125,110,118,211,107,76,98,89,80,100,83,85,101,96,73,150,146,138,142,141,144,323,310,440,449,437,443,454,460,430,414,528,528,532,537,536,524,524,477,697,697,2288,1974,29971,29969,29988,29989,29989,29988,29987,29988]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 Nc6 9. Be3 O-O 10. O-O Qc7 {10...Bg4 is a critical line. Played by Shakhriyar Mamedyarov in December 2019.} 11. Rc1 b6 12. h4 {D87: Exchange Grünfeld: Classical Line: Variations without ...cxd4.} Bb7 13. h5 Rfd8 {[#]} ({Better is} 13... Rad8 $11) 14. h6 $146 {White is slightly better.} ({Predecessor:} 14. hxg6 hxg6 15. Nf4 Na5 16. Bd5 Bxd5 17. Nxd5 Qb7 18. Bg5 Rxd5 19. exd5 Qxd5 20. Bxe7 {1-0 (38) Shabalov,A (2563)-Flores Rios,M (2529) chess.com INT 2017}) 14... Bf8 15. Qe1 e5 {[%cal Rc5d4]} 16. d5 Na5 17. Bd3 $36 {[%mdl 2048] White fights for an advantage.} c4 18. Bc2 f6 19. f4 Bc5 (19... Bxh6 $11 20. Qh4 Qg7) 20. Bxc5 $16 Qxc5+ 21. Qf2 Qxf2+ 22. Rxf2 Bc8 23. fxe5 fxe5 24. Kh2 $1 Nb7 25. Ng1 {Nf3 is the strong threat.} Nd6 26. Rcf1 $1 Rb8 27. Rf6 $1 Rb7 28. Nf3 Nf7 29. Kg3 Re7 30. Nd2 ({White should play} 30. Ba4 $1 $16) 30... Nxh6 $11 31. Nxc4 Kg7 32. Rc6 Ba6 33. d6 Red7 34. Ba4 $1 Kh8 $2 {[%mdl 8192]} (34... Rb7 $11) 35. Nxe5 $18 Rxd6 36. Rxd6 (36. Rh1 $18) 36... Rxd6 $16 37. Rf8+ $1 Kg7 38. Ra8 Bd3 {[#]} (38... Kf6 $16 39. Nf3 (39. Rxa7 Kxe5 40. Rxa6 Kxe4 $15) 39... Nf7 40. Rxa7 Bc4 41. Rxf7+ {[%mdl 64] Remove Defender} Kxf7) 39. Rxa7+ ({Only move:} 39. Kf4 $1 $18 Rf6+ 40. Ke3) 39... Kf6 40. Nd7+ ({But not} 40. Rxh7 $6 Kxe5 41. Rxh6 Bxe4 $11) 40... Kg5 41. e5 Re6 42. Rb7 Bc4 43. a3 Nf5+ 44. Kf2 b5 (44... Nh6 $142) 45. Bxb5 Bxb5 46. Rxb5 {[%mdl 4096] Endgame KRN-KRN} Ra6 47. Rb3 Ra4 $2 {This move loses the game for Black.} (47... Ne7 $16 48. c4 Rc6) 48. Nc5 $18 Rc4 (48... Rf4+ $142 49. Ke2 Rg4 50. Ne6+ Kh6) 49. Ne6+ Kh6 {[#]} 50. g4 $1 Ne7 (50... Rxg4 51. Rb4) 51. Rb1 {[%cal Rb1h1]} g5 52. Nd4 {And now Rb7 would win.} Rxc3 53. Nf5+ Nxf5 54. gxf5 Rxa3 {KR-KR} 55. Rb8 Ra5 {[#]} 56. Re8 $1 Kg7 (56... Ra7 $142 57. Kg3 Ra3+ 58. Kg2 Re3) 57. f6+ Kf7 58. Re7+ Kf8 59. Kf3 {White mates.} h5 60. Ke4 g4 61. Rh7 g3 62. e6 {Accuracy: White = 86%, Black = 60%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.13"]
[White "Vaibhav, Suri"]
[Black "Maghsoodloo, Parham"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2591"]
[BlackElo "2674"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,51,18,10,10,12,21,13,15,14,9,15,16,0,0,0,0,-2,9,4,10,12,15,15,37,0,0,-4,-21,-32,-7,-8,0,0,0,0,15,13,6,7,12,12,51,36]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. O-O a5 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 7. Re1 O-O 8. h3 h6 {The position is equal.} 9. Nbd2 Be6 10. Bb5 Qb8 11. Bxc6 bxc6 12. d4 exd4 13. cxd4 Bb4 14. a3 Bxd2 $1 15. Nxd2 {[#]} Nd7 $146 ({Predecessor:} 15... Re8 16. b3 d5 17. e5 Nd7 18. Qh5 c5 19. Re3 f5 20. exf6 Bf7 21. Qh4 Rxe3 22. fxe3 {½-½ (43) Giri,A (2797)-Ding,L (2809) Shenzhen 2019}) 16. Nf1 a4 17. Qh5 {With the idea Bxh6!} Qb6 18. Bxh6 {[#] Qg5! is the strong threat.} Qxd4 19. Re3 {Threatens to win with Bxg7!} Qe5 20. Qxe5 dxe5 21. Rg3 Kh7 $1 {[%cal Rh7h6]} 22. Bd2 Nc5 23. Bb4 $36 {[%mdl 2048] White is pushing.} Nxe4 24. Re3 c5 25. Be1 Bd5 26. f3 {Accuracy: White = 95%, Black = 86%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.14"]
[White "Kovalev, Vladislav"]
[Black "Aryan Chopra"]
[Result "1-0"]
[ECO "C07"]
[WhiteElo "2650"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "166"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,166,20,14,10,29,21,21,27,10,12,8,12,12,12,12,4,8,14,0,11,4,14,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,12,12,16,0,12,12,12,13,16,4,4,0,7,0,14,0,1,0,0,0,0,0,0,0,0,5,41,20,27,29,33,29,29,31,35,25,46,41,49,33,41,41,41,39,54,59,210,210,227,185,213,213,221,224,222,205,306,321,313,311,272,262,352,349,415,322,313,310,323,305,268,259,12837,12838,12838,12839,12840,12840,12842,12842,12844,12843,12846,12843,12845,12843,12843,0,12845,12845,12845,12842,12842,12843,12843,12843,29974,29975,12851,27999,27991,27991,27992,27992,27993,27993,27994,27994,27995]} 1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 Nf6 5. exd5 exd5 6. Bb5+ Bd7 7. Bxd7+ Nbxd7 {[%cal Bb8d7,Bd7c5,Bc5e4,Be4d6,Bd6c4][%mdl 32]} 8. O-O Be7 9. dxc5 Nxc5 10. Nb3 Nce4 11. Nfd4 Nd6 {C08: French Tarrasch: 3...c5 4 exd5 exd5 sidelines.} 12. Re1 {12.c3 is the modern continuation.} O-O 13. c3 Re8 {The position is equal.} 14. Qc2 Nc4 15. Bg5 h6 16. Bh4 Qb6 17. f3 Bf8 18. Bf2 Qa6 19. a3 $5 {[%mdl 4] [#] Leaves trodden paths.} Nh5 $146 ({Predecessor:} 19... Qa4 20. Nf5 Nd7 21. Nfd4 Nde5 {½-½ (21) Ponomarev,A (2237)-Peuraniemi,P (2446) ICCF email 2011}) 20. g3 Qg6 21. Qxg6 fxg6 22. Rxe8 Rxe8 23. Ra2 Nf6 24. a4 g5 25. h3 a6 26. Nc1 Ne5 27. b3 Rc8 28. Rc2 g6 29. Kg2 Kf7 30. Nde2 Ba3 31. Be3 Bc5 (31... Bf8 {with more complications.} 32. Rd2 Re8 33. Bd4 Bd6 34. Be3 Ba3) 32. Bxc5 Rxc5 33. Rd2 Ke7 34. Rd1 Kd6 35. Na2 Nc6 36. Nac1 Ne5 37. Na2 Nc6 38. Nec1 Ne5 39. Kf2 a5 40. Ne2 b5 41. axb5 Rxb5 42. Nd4 Rc5 43. Nc1 Kd7 44. Nce2 Nc6 45. Nxc6 Kxc6 $14 {[%mdl 4096] Endgame KRN-KRN} 46. Ke3 Kd6 47. Kd2 Rc8 48. Nd4 h5 49. g4 hxg4 50. hxg4 Nd7 $1 51. Ra1 Ra8 52. Re1 {And now Re6+ would win.} Nf8 $2 {Black is now going downhill.} ({Better is} 52... Nc5 $14) 53. Kc2 Rb8 54. Re2 Ra8 55. Kb2 Rb8 56. Ka3 Rc8 57. Re3 Kd7 (57... Kc5 {might work better.} 58. Re5 a4 59. bxa4 Kc4 60. Rxg5 Re8) 58. Ka4 $18 Rc5 59. Re5 Rxc3 60. Rxd5+ Ke8 61. Kxa5 ({Less strong is} 61. Rxa5 Nd7 $16) ({Not} 61. Rxg5 Rd3 $18) 61... Rd3 62. Kb4 Nd7 63. Kc4 Re3 {Threatening ...Nb6+.} 64. Rxg5 Ne5+ {[#]} 65. Kd5 $1 Nxf3 $2 (65... Nd3 66. Kd6 Re7) 66. Nxf3 Rxf3 {KR-KR} 67. b4 Rf6 68. Kc5 Kd7 69. b5 Kc7 70. Re5 Rf4 71. g5 Rf7 72. Kb4 Rf4+ 73. Kc5 Rf7 74. Rd5 Re7 75. Kb4 Re4+ {[#]} 76. Ka5 $1 Re6 {[#]} 77. b6+ $1 {[%mdl 512]} Rxb6 78. Rc5+ Kb7 79. Rb5 Rxb5+ {White mates.} 80. Kxb5 Kc7 81. Kc5 Kd7 82. Kd5 Ke7 83. Ke5 Kf7 {Accuracy: White = 97%, Black = 78%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.15"]
[White "Riazantsev, Alexander"]
[Black "Sychev, Klementy"]
[Result "1-0"]
[ECO "D38"]
[WhiteElo "2639"]
[BlackElo "2563"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,83,0,0,-17,0,-37,14,17,30,21,45,25,22,20,35,35,20,27,12,6,11,2,22,28,33,46,82,76,170,169,184,183,166,169,320,312,248,130,136,132,129,117,110,66,64,57,293,293,275,281,261,252,358,357,357,357,349,311,403,406,545,535,618,618,608,339,378,0,610,605,529,514]} 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Bb4 5. e3 O-O 6. Bd2 b6 7. cxd5 exd5 8. Bb5 $5 {[%mdl 4] [#] Exploring less charted territory. E51: Nimzo-Indian: Rubinstein: 4...0-0 5 Nf3 d5.} Bd6 $146 ({Predecessor:} 8... a6 9. Ba4 Bg4 10. h3 Bh5 11. g4 Bg6 12. Ne5 c5 13. O-O Qd6 14. Rc1 Nbd7 15. Bxd7 Nxd7 16. Nxg6 hxg6 17. dxc5 Bxc5 {0-1 (33) Oliveira,F (2178)-Bernasek,J (2536) Katowice 2014}) 9. O-O Bg4 (9... c6 $15 10. Bd3 Qe7) 10. h3 $11 {The position is equal.} Bh5 11. g4 Bg6 12. Ne5 Bxe5 13. dxe5 Ne4 14. Nxe4 Bxe4 15. f3 Bg6 16. Bc3 c6 17. Ba4 Qc7 18. e4 Rd8 19. exd5 Rxd5 20. Qe1 Na6 (20... Bd3 $16) 21. Bb3 $18 Rdd8 22. f4 $1 {[%cal Rf4f5]} Bd3 23. e6 fxe6 $2 (23... c5) 24. Qxe6+ Kh8 {Hoping for ...Nc5.} 25. Rae1 ({White has to play} 25. Rfe1 $1 $18 Qxf4 26. Re3) 25... Bxf1 $16 {[#]} 26. Qe7 $1 {[%csl Ge7][%cal Rc3g7]} Rg8 (26... Qxe7 $2 27. Rxe7 Rg8 28. Bxg8) 27. Bxg8 $40 {[%mdl 128] Black is in trouble.} Kxg8 28. Qxc7 Nxc7 29. Re7 $1 {[%cal Re7g7]} Nb5 $2 ({Avoid the trap} 29... Nd5 $2 30. Rxg7+ Kf8 31. Rxh7 $18 (31. Kxf1 Nxc3 32. Rxh7 Kg8 $15)) (29... Bxh3 $14 30. Rxc7 Re8) 30. Rxg7+ $18 ({Weaker is} 30. Kxf1 Kf8 $11) 30... Kf8 31. Rxh7 {Black must now prevent Rh8+.} Bc4 {[#]} 32. Bg7+ $1 Kg8 (32... Ke7 $142) 33. Rh8+ Kxg7 34. Rxa8 Bxa2 35. h4 Bd5 36. Kf2 c5 37. Rd8 Bf7 38. h5 Kh6 39. Rh8+ Kg7 40. Rd8 $2 (40. Ra8) 40... Kh6 41. Kg3 Nd4 42. Rd6+ {Accuracy: White = 78%, Black = 50%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.16"]
[White "Sadhwani, Raunak"]
[Black "Durarbayli, Vasif"]
[Result "1-0"]
[ECO "B62"]
[WhiteElo "2522"]
[BlackElo "2625"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,89,26,41,0,18,15,10,18,46,11,53,45,84,79,186,181,163,167,169,177,195,205,237,237,263,246,259,247,294,300,382,390,367,370,362,0,0,0,0,0,0,0,0,0,0,0,31,16,120,114,129,135,220,212,216,220,199,195,272,286,465,449,551,479,731,721,633,595,826,695,710,519,740,727,951,913,1834,1784]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Bb5 Bd7 8. Qd3 $1 {[%mdl 4] is more profitable than 8.Bxc6 at the moment. B62: Sicilian: Richter-Rauzer: 6...e6: Unusual White 7th moves.} h6 9. Bh4 Be7 10. O-O-O {The position is equal.} Ne5 11. Qe2 {[#]} O-O $146 ({Predecessor:} 11... a6 12. Bxd7+ Qxd7 13. f4 Ng6 14. Bg3 Qc8 15. h4 h5 16. Nf3 b5 17. f5 exf5 18. Bxd6 {0-1 (36) Giurumia,S (2220)-Ghinda,M (2450) Romania 1993}) 12. f4 Ng6 13. Bg3 a6 (13... e5 $16) 14. Bxd7 $18 Nxd7 15. f5 $36 {[%mdl 2048] Black is under strong pressure.} exf5 16. Nxf5 Re8 17. Bxd6 ({Don't take} 17. Nxd6 $6 Bxd6 18. Rxd6 (18. Bxd6 Qb6 $14) 18... Qg5+ 19. Kb1 Nf6 $16) 17... Bf6 18. Nd5 $1 {Bc7 is the strong threat.} Rc8 19. Rhf1 Re6 20. Kb1 Qe8 21. Nc7 Rxe4 22. Qf3 ({Worse is} 22. Nxe8 Rxe2 23. Nxf6+ Nxf6 $11) 22... Rxc7 23. Bxc7 Kh7 24. Rxd7 $2 (24. Bg3 $18 {Strongly threatening Nd6.} Rb4 25. c3) 24... Qxd7 $11 25. Qxe4 Qb5 {[%csl Gf6][%cal Rb5b2][%mdl 64] Double Attack} 26. c3 Qxf1+ 27. Kc2 b5 28. Bb6 Bg5 29. a3 Qc1+ 30. Kb3 Qf4 (30... Qh1 $11) 31. Qxf4 $16 Nxf4 {[%mdl 4096] Endgame KBN-KBN} 32. Kb4 Nxg2 (32... Nd5+ $16 {was called for.} 33. Ka5 Bc1) 33. Ka5 $1 $18 Bc1 {[#]} 34. b4 $1 Bxa3 35. Kxa6 Bb2 {[#]} (35... Kg6 {was necessary.}) 36. Bd4 $1 g6 $2 (36... Bc1 37. Kxb5 Bf4) 37. Nd6 {White is clearly winning.} f5 38. Kxb5 f4 (38... Nf4 $142 39. Kc4 Ne6) 39. Kc6 f3 40. Ne4 Nf4 41. Be3 ({Not} 41. Nf6+ Kg7 $18) 41... Ne2 42. c4 Be5 43. b5 {[%cal Bb4b5,Bb5b6][%mdl 32]} Bxh2 44. b6 g5 45. Nd6 {Accuracy: White = 88%, Black = 32%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.17"]
[White "Zvjaginsev, Vadim"]
[Black "Kunin, Vitaly"]
[Result "1/2-1/2"]
[ECO "B24"]
[WhiteElo "2623"]
[BlackElo "2550"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,82,13,42,41,39,30,33,15,27,0,0,-2,0,0,-2,0,-1,-2,20,0,0,-14,-12,-29,-32,-26,-11,-13,-23,-21,-6,-14,0,0,0,0,17,0,12,0,7,8,8,8,4,0,5,5,2,0,0,0,10,11,11,0,0,0,15,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Nf3 Nxb5 5. Nxb5 d5 6. exd5 {B23: Closed Sicilian: Lines without g3.} a6 7. Nc3 {[%cal Bb5c3,Bc3e4,Be4c5][%mdl 32]} Nf6 8. d4 {White is slightly better.} Nxd5 9. Ne4 cxd4 10. Qxd4 {[#]} Bf5 $146 ({Predecessor:} 10... Nf6 11. Qxd8+ Kxd8 12. Nxf6 gxf6 13. Be3 e5 14. O-O-O+ Ke8 15. Nd2 Bf5 16. f4 Rc8 {½-½ (27) Ampie,M (2318)-Kaufman,R (2252) Burlingame 2019}) 11. O-O Nf6 12. Nc5 Qxd4 13. Nxd4 Bc8 14. Na4 {[#] Nb6 is the strong threat.} b5 15. Nc5 e6 16. Nd3 Bb7 17. f3 Bd6 18. Be3 Rc8 19. Rfd1 O-O {The position is equal.} 20. c3 Nd5 21. Bf2 Rfd8 22. Nb3 Ba8 23. a3 h5 24. Nb4 Nxb4 25. axb4 Bd5 26. Nc5 Bxc5 27. bxc5 Bb7 28. b4 f6 29. h4 (29. Bd4 {is interesting.} Kf7 30. f4 h4 31. Re1 Rd7 32. Re2) 29... Kf7 30. Bg3 Rxd1+ 31. Rxd1 $11 {[%mdl 4096] [#] Endgame And now Rd7+ would win. KRB-KRB} Bd5 32. Bf2 Ra8 33. Ra1 Ke7 34. Be3 Bb7 35. Kf2 Rd8 36. Ke2 e5 37. Bf2 Ke6 38. Be3 Rd7 39. Bf2 Rd8 40. Be3 Rd7 41. Bf2 Rd8 {Accuracy: White = 97%, Black = 100%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.18"]
[White "Erigaisi Arjun"]
[Black "Indjic, Aleksandar"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "2563"]
[BlackElo "2622"]
[Annotator "TA"]
[PlyCount "137"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,137,-6,-11,-12,-8,0,0,30,17,81,79,68,70,95,107,95,46,113,113,120,135,126,104,160,162,153,203,201,202,161,163,205,206,206,201,206,195,171,154,171,151,234,243,242,243,275,286,262,10,10,9,9,0,9,0,83,83,83,83,83,83,83,59,68,64,83,83,83,83,83,69,69,32,83,83,83,83,83,59,153,153,144,139,414,414,414,398,375,161,255,249,293,289,277,240,201,132,270,270,247,103,304,304,296,285,285,285,277,277,188,147,409,395,483,443,537,553,560,551,530,447,520,449,389,360]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. h4 Qe6 {C45: Scotch Game.} 9. Nd2 Nb4 10. Nf3 Ba6 {The position is equal.} 11. c4 $1 {next Nd4 is good for White.} d5 (11... Qg6 $11 12. Kd1 c5) 12. a3 $1 $16 {Hoping for Qd1.} Bxc4 13. Qd1 $1 {aiming for Bxc4.} Bxf1 14. Kxf1 Na6 {[#]} 15. Rh3 $146 {[%mdl 1024] Black must now prevent Ng5. White has strong compensation.} ({Predecessor:} 15. b4 c5 16. Qa4+ Kd8 17. Ng5 Qg6 18. e6 Qd3+ 19. Kg1 Bd6 20. Qd7# {1-0 (20) Morozevich,A (2683)-Sychev,K (2445) Moscow 2016}) 15... Be7 ({Black should play} 15... Nc5 $14) 16. Bg5 $1 Bc5 17. Rc1 $36 {[%mdl 2048] Threatens to win with Qa4. White is in control.} Bb6 18. a4 $1 Rb8 (18... h6 $142 19. Bd2 O-O) 19. Qe2 Nb4 20. Bd2 $1 {[%cal Rd2b4]} a5 21. Ng5 $1 {[%cal Rg5e6]} Qe7 22. e6 f6 23. Nf7 $1 {[%cal Rf7h8]} O-O {[#]} 24. Rg3 $1 {[%cal Rg3g7][%mdl 512] White wants to mate with Rxg7+!} Rxf7 25. exf7+ Qxf7 26. Bxb4 $1 axb4 27. Rxc6 Bd4 (27... Qd7 $16 28. Qe6+ Qxe6 29. Rxe6 Kf7) 28. Qc2 $1 $18 Be5 29. Rd3 Qd7 30. Rc5 d4 31. Rb5 $2 (31. Qc4+ $18 Kh8 32. Rb5) 31... Rxb5 $11 32. axb5 Qxb5 {[%mdl 4096] Endgame KQR-KQB} 33. b3 Qd5 34. Rd1 c5 (34... g6 $11) 35. Qd3 $16 Bd6 36. Ra1 h5 37. Ra7 Bf8 38. Ra6 Be7 39. Kg1 Bf8 40. Ra1 Kf7 41. Kf1 Kg8 42. Rc1 Kf7 43. Re1 Kg8 (43... f5 $14) 44. Re8 {Black is now going downhill.} Kf7 45. Rb8 Kg8 46. Rc8 Kf7 (46... f5 $14) 47. Qe2 {And now Qe8+ would win.} Be7 48. Rc7 Qd8 $2 {[%mdl 8192]} (48... Qe5 $16 49. Qc4+ Kg6) 49. Qxh5+ $18 Kg8 50. Ra7 d3 51. Ra1 (51. Ke1 $142) 51... d2 (51... Qd4 $142 52. Qe8+ Kh7 53. Qh5+ Kg8) 52. Qe2 Qd5 {[#]} 53. Qc4 $1 Qxc4+ 54. bxc4 {KR-KB} f5 55. Rd1 Bxh4 (55... Bf6 $16 {is a better defense.} 56. Rxd2 b3) 56. Rxd2 Be7 {[#]} 57. Rd5 (57. Ke2 $1 $18 {and White stays clearly on top.}) 57... g6 $2 (57... b3 $16 {was necessary.}) 58. Ke2 Kf7 59. Kd3 Kf6 60. f3 Ke6 61. Kc2 Bd6 62. Kb3 Be7 $2 {[%mdl 8192]} (62... Kd7 $16 {was worth a try.} 63. f4 Kc6) 63. Ka4 Bd6 64. Kb5 Be7 65. Kc6 Bf8 66. Rd8 Be7 67. Rd1 Bf8 68. Re1+ Kf7 69. Kd5 {Accuracy: White = 80%, Black = 58%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.19"]
[White "Chigaev, Maksim"]
[Black "Bharath Subramaniyam H"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "2616"]
[BlackElo "2402"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,58,-12,-9,-4,18,0,16,-133,-123,-156,-165,-162,-105,-96,-100,-110,-102,-118,-88,-100,-86,-110,-87,-63,0,-137,-151,-164,-151,-167,-147,-158,-118,-120,-87,-225,-143,-428,-428,-428,-428,-428,-422,-409,-395,-672,-692,-658,-654]} 1. e4 c5 2. Nf3 e6 3. d3 Nc6 4. g3 g6 5. d4 cxd4 6. Nxd4 Bg7 {was the old line (6...d5).} 7. Nb5 {B40: Sicilian: 2...e6, Unusual lines.} d5 8. exd5 exd5 9. Bf4 (9. Qxd5 $11 {keeps the balance.} Qe7+ 10. Be2) 9... Bxb2 $17 10. N1c3 {[#]} (10. Nd6+ $2 Kf8 $19) 10... Nf6 $1 (10... Bxa1 11. Qxa1 Kf8 12. Nc7 $11 (12. Bd6+ Kg7 $11)) 11. Bg2 {[#]} Qe7+ $146 (11... O-O $19 12. O-O Bg4) ({Predecessor:} 11... O-O 12. O-O d4 13. Ne2 d3 14. cxd3 Nh5 15. Bh6 Bg7 16. Bxg7 Nxg7 17. d4 a6 {1-0 (43) Dzhumaev,M (2498)-Harika,D (2329) Mumbai 2004}) 12. Kf1 {Hoping for Bd6.} O-O {Strongly threatening ...Bg4.} 13. Bd6 {[#]} Qd8 $1 14. Rb1 Bxc3 15. Bxf8 Bg4 ({But not} 15... Qxf8 $6 16. Nxc3 Be6 17. Qf3 $11 (17. Nxd5 Nxd5 18. Bxd5 Rd8 $17) (17. Rxb7 Qc5 $11) (17. Bxd5 $2 Rd8 $19)) 16. Bf3 Bh3+ {[%mdl 1024] Black has strong compensation.} 17. Bg2 Bg4 (17... Ba5 $15 18. Bc5 Bxg2+ 19. Kxg2 Ne4) 18. Qc1 (18. Bf3 $1 $11) 18... Be5 $36 {[%mdl 2048] Black is on the roll.} ({Not} 18... Kxf8 19. Nxc3 Qa5 20. h3 $14) 19. Bh6 a6 20. h3 Bf5 21. Na3 Ne4 22. Rxb7 Qf6 {aiming for ...Bxg3!} 23. Bf4 (23. g4 $17 Ng3+ 24. fxg3 Bc8+ {[%mdl 64] Discovered Attack} 25. Kg1 Bxb7 26. Kh2) 23... Bd4 {And now ...g5 would win.} 24. c4 $2 {[%mdl 8192] Now White is beyond hope.} (24. Rh2 $17) 24... Nxf2 $19 {( -> ...Bd3+)} 25. Bxd5 Nxh1 26. Rxf7 Qxf7 ({Weaker is} 26... Bxh3+ 27. Ke2 $17) 27. Bxf7+ Kxf7 28. g4 $2 (28. Nc2 Re8 29. Nxd4 Nxd4 30. Qd1 Bxh3+ 31. Kg1 Re1+ {[%mdl 64] Deflection} 32. Qxe1 Nf3+ {[%mdl 64] Double Attack} 33. Kxh1 Nxe1 34. Kg1) 28... Bd3+ 29. Kg2 Re8 {Accuracy: White = 52%, Black = 67%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.20"]
[White "Kardashevskiy, Evgeny"]
[Black "Kobalia, Mikhail"]
[Result "0-1"]
[ECO "D45"]
[WhiteElo "2437"]
[BlackElo "2609"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,80,34,40,22,50,60,66,41,44,23,53,-11,67,88,54,83,68,-4,-3,-7,0,0,0,-39,-27,-42,0,0,12,0,4,-7,21,0,0,0,0,-54,-32,-101,-85,-81,-75,-125,-96,-466,-414,-460,-428,-407,-95,-5257,-2338,-29995,-29995,-29996,-29995,-29995,-29996,-29996,-29997]} 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. b3 O-O 8. Be2 Re8 9. O-O dxc4 10. bxc4 e5 11. Rd1 Qe7 12. a4 {D45: Semi-Slav: 5 e3.} e4 13. Nd2 Nf8 14. Nf1 {White is slightly better.} Ng6 15. Qb3 {[#]} Ng4 $146 ({Predecessor:} 15... h5 16. Ba3 h4 17. Bxd6 Qxd6 18. h3 Qe6 19. Nd2 Qf5 20. c5 Re7 21. a5 Qg5 {1-0 (43) Spassov,L (2376)-Tsvetkov,I (2307) Pernik 2003}) 16. Ba3 ({Better is} 16. Ng3 $14) 16... Bxa3 (16... Qf6 $11 17. Bxg4 Bxg4) 17. Qxa3 $14 Qf6 18. Bxg4 $1 Bxg4 19. Ng3 ({White should try} 19. Rdb1 $14) 19... Bxd1 $11 20. Rxd1 Qh4 21. Qb3 b6 22. Qc2 Rad8 23. a5 bxa5 24. Ra1 Rb8 25. Rxa5 {[%cal Rg3e4]} Qe7 26. Ngxe4 Rb4 27. Qa2 Qe6 28. h3 Reb8 29. Rc5 (29. Rxa7 $11 Qxc4 30. Qa5) 29... f5 $36 {[%mdl 2048] White is under pressure.} 30. Ng5 (30. Ng3 $1 $15) 30... Qf6 $17 31. Nf3 {[#]} f4 $1 {[%cal Rf4e3]} 32. Ne4 {[#]} Qe7 $1 {[%cal Re7e4]} 33. Ne5 $2 {[%mdl 8192]} (33. Nfd2 $17 {nothing else works.}) 33... fxe3 {Threatens to win with ...Rb2.} 34. fxe3 Rb1+ 35. Kh2 R1b2 $2 (35... R8b2 $19 {and Black stays clearly on top.} 36. Qa5 Qf8) 36. Qa6 $2 {[%mdl 8192]} (36. Qa5 $17) 36... Nh4 $19 37. Nc3 Rxg2+ {Black mates.} 38. Kh1 Qe6 {[%cal Re6h3]} 39. Ng4 Rf8 {[%cal Rf8f1]} 40. Qa1 Rf3 {Accuracy: White = 43%, Black = 77%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.21"]
[White "Nesterov, Arseniy"]
[Black "Praggnanandhaa R"]
[Result "0-1"]
[ECO "E04"]
[WhiteElo "2501"]
[BlackElo "2602"]
[Annotator "TA"]
[PlyCount "42"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,42,43,47,42,50,58,45,61,48,76,0,0,0,0,0,0,-20,-16,-6,-16,-289,-285,-280,-280,-346,-341,-347,-349,-352,-333]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 a6 6. O-O Nc6 7. e3 Rb8 8. Nfd2 e5 {E04: Open Catalan: 5 Nf3.} 9. Bxc6+ bxc6 10. dxe5 Ng4 {White is slightly better.} 11. Nxc4 Be6 {[#] ...Qxd1 is the strong threat.} 12. Qxd8+ (12. Nbd2 $16) 12... Rxd8 $11 13. Nbd2 Bb4 14. b3 h5 15. h3 {[#]} Bc3 $5 $146 {[%mdl 8] White is under pressure. New and interesting.} ({Predecessor:} 15... Bxd2 16. Bxd2 Bxc4 17. bxc4 Rxd2 18. hxg4 hxg4 19. Rfd1 Rxd1+ 20. Rxd1 Rh5 21. Rd4 Rxe5 22. Rxg4 {½-½ (35) Sargsyan,S (2580)-Praggnanandhaa,R (2567) Mumbai 2019}) 16. Rb1 {And now Ne4 would win.} Nxe5 17. Ne4 $2 {[%mdl 8192]} (17. Nxe5 $11 Bxe5 18. f4) 17... Bxh3 $19 {aiming for ...Nf3+.} 18. Nxe5 Bxe5 19. Re1 Bf5 20. f3 {[#]} Bxg3 $1 {[%mdl 512]} 21. Rf1 (21. Nxg3 Bxb1) 21... Rh6 {White did not feel at home in the position after the opening. Accuracy: White = 50%, Black = 100%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.22"]
[White "Sindarov, Javokhir"]
[Black "Abdusattorov, Nodirbek"]
[Result "1-0"]
[ECO "C89"]
[WhiteElo "2537"]
[BlackElo "2644"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 26,55,26,19,25,-12,-10,-15,-12,0,0,-10,-9,-8,-5,-4,44,44,122,132,180,175,204,197,241,204,206,199,432,428,520,497]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d3 Bd6 13. Re1 Bf5 {The main line 13...Bf5 scores better than 13...Qh4.} 14. Qf3 Re8 {[%cal Re8e1] C89: Closed Ruy Lopez: Marshall Attack.} 15. Bd2 {[#]} Qg5 $1 {[%mdl 512] ...Rxe1+ is the strong threat.} 16. Bxd5 (16. Bxg5 Rxe1#) 16... cxd5 {The position is equal.} 17. Rxe8+ Rxe8 18. g3 $1 Qg6 19. Be3 $1 {[#]} d4 $146 ({Predecessor:} 19... Be6 20. Nd2 Qxd3 21. Bf4 Qc2 22. Qd1 Qxd1+ 23. Rxd1 Bxf4 24. gxf4 d4 25. cxd4 Bxa2 {½-½ (39) Kasperek,R (2370)-Kireev,S (2312) LSS email 2010}) 20. cxd4 Bg4 21. Qc6 $1 {[%csl LRa6,LRe8][%mdl 64] Double Attack} Rc8 (21... Re6 $14) 22. Qxa6 $16 Qxd3 {( -> ...Qd1+)} 23. Nc3 (23. Qxd6 {is a self mate.} Qd1+ 24. Kg2 Qf3+ 25. Kg1 Bh3 26. Qf8+ Kxf8 27. Bg5 Qg2#) 23... Bf8 {[#] White must now prevent ...Rxc3.} 24. a4 $1 ({Don't blunder} 24. Nxb5 $2 Qe4 $19) 24... Bh3 {And now ...Rxc3 would win.} 25. Qxb5 Rxc3 26. Qh5 ({But not} 26. bxc3 $2 Qe4 $19) 26... Rc2 $2 (26... Rc4) 27. Qxh3 $18 Rxb2 28. Qf1 {Accuracy: White = 83%, Black = 38%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.23"]
[White "Sengupta, Deep"]
[Black "Martirosyan, Haik M."]
[Result "1/2-1/2"]
[ECO "C47"]
[WhiteElo "2534"]
[BlackElo "2630"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,98,8,8,41,45,47,48,37,54,68,28,37,24,34,34,28,33,40,4,24,24,10,0,16,13,35,0,0,0,0,-41,-29,-44,-50,-47,-37,-32,-43,-32,-39,-33,-44,-34,0,0,0,-45,-17,-60,-60,-60,-54,-60,-60,-60,-215,-60,-60,-60,-59,-59,-60,-60,-60,-58,-35,-43,-43,-49,-39,-8,0,0,0,-9,-8,-8,0,0,0,0,0,0,4132]} 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 d5 5. exd5 Nxd5 6. Bg2 Nxc3 7. bxc3 Bd6 8. O-O O-O 9. d4 e4 {C47: Scotch Four Knights and Four Knights with 4 g3.} 10. Ng5 f5 11. f3 h6 {White is slightly better.} 12. Nh3 exf3 13. Qxf3 Qf6 14. Rb1 {[#]} Rb8 $146 ({Predecessor:} 14... Ne7 15. Qd3 c6 16. c4 b6 17. d5 Ba6 18. Bb2 Qf7 19. Nf4 Bxf4 20. Rxf4 cxd5 {0-1 (45) Piuva,M (2205)-Jonsson,M (2290) Sweden 1999}) 15. Bf4 g5 16. Bxd6 cxd6 17. Qe2 {Hoping for Bxc6.} Bd7 18. Nf2 Kh8 19. Ng4 Qg6 20. Ne3 f4 21. Nd5 {[%cal Rg3f4]} Rbe8 22. Qd2 {[%cal Rg3f4]} Bg4 {...Re2 is the strong threat.} 23. gxf4 Re2 24. Qd3 {[#]} Rxg2+ $1 {[%mdl 512]} 25. Kxg2 Bf5 26. Qg3 $1 {Strongly threatening Ne3.} (26. Qf3 $2 Be4 $19) 26... Be4+ 27. Kg1 {aiming for f5.} Bxd5 28. fxg5 Rg8 {White must now prevent ...Qh5.} 29. Rf6 Qxg5 (29... Qxf6 $5 30. gxf6 Rxg3+ 31. hxg3 Nd8 $11) 30. Qxg5 Rxg5+ 31. Kf2 (31. Kf1 $5 {[%cal Rb1b7]} Kg7 32. Rxd6 $11) 31... Na5 {White should prevent ...Rg2+.} 32. Rxh6+ ({Of course not} 32. Rxd6 Rg2+ 33. Ke1 (33. Kf1 $2 Nc4 $19) 33... Rg1+ 34. Kd2 Rxb1 $17) 32... Kg7 33. Rxd6 Rg2+ 34. Kf1 Nc4 $1 {[%cal Rc4d6]} 35. Rxd5 $15 {[%mdl 4096] Endgame KRR-KRN} ({But not} 35. Rd7+ $2 {[#]} Kf6 $1 $19 {[%mdl 512]}) 35... Ne3+ {[%mdl 64] Double Attack} 36. Ke1 Nxc2+ 37. Kf1 Ne3+ {[%mdl 64] Double Attack, Discovered Attack} 38. Ke1 Nxd5 39. Rxb7+ {KRN-KR} Kf6 40. Rxa7 Kf5 41. c4 Ne3 {[%mdl 1024] Black has compensation.} 42. d5 Ke4 43. d6 Nc2+ {The position is equal.} 44. Kf1 Ne3+ 45. Ke1 Rxh2 46. c5 Rg2 47. Ra8 Nc2+ (47... Kd3 $5 48. Ra3+ $8 Ke4 $11) 48. Kf1 Ne3+ 49. Ke1 Ke5 $2 {[%mdl 40960] Accuracy: White = 81%, Black = 88%. . An unexpected result.} (49... Nc2+ $11 50. Kf1 Ne3+ 51. Ke1) 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.24"]
[White "Kulaots, Kaido"]
[Black "Shtembuliak, Evgeny"]
[Result "0-1"]
[ECO "B15"]
[WhiteElo "2510"]
[BlackElo "2628"]
[Annotator "TA"]
[PlyCount "132"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,132,43,27,50,0,30,27,21,0,3,1,22,14,18,11,16,0,1,5,15,-12,-8,-6,0,-39,0,-21,0,-2,0,0,0,-56,-8,-8,0,0,0,-4,-4,-2,-3,-3,-4,-13,-13,-13,-13,-14,-13,-22,-22,-18,-6,-8,-4,-4,-8,-6,-6,-6,-6,-6,-6,-14,-4,-4,-4,-6,-6,-51,-51,-51,-65,-59,-59,-114,-114,-121,-122,-660,-652,-560,-535,-455,-280,-280,-280,-1477,-1562,-1674,-670,-770,-670,-29975,-29968,-29969,-29970,-29969,0,-29963,0,-29968,-29963,-29963,-2589,-1809,-1650,-1378,-423,-29970,-29949,-12538,-5687,-5612,-4618,-1824,-1691]} 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. c3 Bd6 7. Bd3 O-O 8. Qc2 Re8+ 9. Be3 h5 {B15: Caro-Kann: 3 Nc3: 3...g6 and 3...dxe4 4 Nxe4 Nf6 5 Nxf6+ exf6.} 10. Nf3 {[#]} Be6 $146 (10... Bf4 $5) ({Predecessor:} 10... Qa5 11. Nd2 Nd7 12. Nc4 Qc7 13. Nxd6 Qxd6 14. O-O Nf8 15. Rfe1 Be6 16. c4 h4 17. h3 {1-0 (35) Maki,V (2339)-Torkkola,H (2216) Finland 2019}) 11. O-O Nd7 {White has an edge.} 12. c4 Nf8 13. Bf5 Qd7 14. Bxe6 fxe6 15. Rad1 Rad8 16. d5 cxd5 17. cxd5 e5 18. Nd2 Bb8 19. Ne4 Qf7 20. Nc3 Ng6 21. Rd2 h4 22. Qf5 Ne7 23. Qf3 f5 24. Bg5 (24. d6 $11 Nc8 25. Bc5) 24... e4 (24... Qg6 $5 {[%cal Rg6g5]} 25. Bxh4 Qh6 26. Bxe7 e4 $11) 25. Qh3 $1 Be5 26. Rfd1 Bxc3 27. bxc3 {And now d6 would win.} Rxd5 28. Bxe7 Rxd2 29. Rxd2 e3 30. fxe3 Qxe7 31. Qxf5 Qxe3+ $11 {[%mdl 4160] [#] Endgame Double Attack. KQR-KQR} 32. Rf2 $1 Re5 33. Qf7+ Kh7 34. Qf4 Kg6 35. Qf7+ Kh6 36. Qf4+ Qxf4 37. Rxf4 {KR-KR} g5 38. Rf7 Rb5 39. Kf2 Kg6 40. Rd7 $1 Kf5 {Threatening ...Rb2+.} 41. h3 $1 a6 42. Kf3 Rc5 43. Rxb7 Rxc3+ 44. Kf2 Rc2+ 45. Kf3 Rxa2 46. Rb6 {White is now going downhill.} (46. Rf7+ $15 Ke6 47. Rg7) 46... Ra3+ $17 47. Kf2 a5 {[%cal Ba6a5,Ba5a4][%mdl 32]} 48. Rb5+ $2 {[%mdl 8192]} (48. Rc6 $17) 48... Kf4 $19 49. Rc5 Ra2+ 50. Kg1 a4 51. Rc4+ Ke3 52. Kh2 $2 (52. Rc5) 52... Kd3 53. Rb4 Kc3 (53... a3 $142 54. Ra4 Kc3) 54. Re4 Ra1 55. g4 Ra2+ 56. Kg1 Kd3 57. Rb4 Kc3 58. Re4 $1 Kd3 59. Rb4 $1 Ke3 60. Rc4 Ra3 (60... Ra1+ $142 61. Kg2 a3 62. Rc3+ Kd2 63. Rf3 Kc2 64. Rf2+ Kb3 65. Rf5 a2 66. Rf3+ Kc2 67. Rf2+ Kb3 68. Rf3+ Kb4 69. Rf2 Kb3 70. Rf3+) 61. Kg2 Kd3 62. Rb4 Ra1 (62... Kc2 $142 {Hoping for ...Rg3+.} 63. Kf2 Ra2) 63. Kh2 {[#]} (63. Rb5 $19 Kc4 64. Rxg5) 63... Ke2 64. Kg2 Ra2 {Black is clearly winning.} 65. Kh1 Kf3 66. Rc4 Rf2 {Accuracy: White = 74%, Black = 83%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.25"]
[White "Karthikeyan, Murali"]
[Black "Moroni, Luca Jr"]
[Result "1/2-1/2"]
[ECO "C78"]
[WhiteElo "2602"]
[BlackElo "2536"]
[Annotator "TA"]
[PlyCount "145"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,145,33,39,0,6,9,2,16,11,0,5,0,0,0,9,0,4,-10,-10,-22,0,0,0,0,18,19,25,24,42,45,40,38,38,38,40,39,44,0,0,0,51,51,51,51,51,51,51,38,38,38,60,61,64,16,122,122,316,308,272,258,205,156,149,149,156,62,62,62,62,62,63,63,97,8,18,8,8,8,8,8,41,0,0,0,2,2,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Bc5 7. a4 Rb8 8. c3 d6 9. d4 Bb6 10. a5 {C78: Ruy Lopez: Archangelsk and Möller Defences.} Ba7 $1 11. h3 {11.Be3 deserves study.} O-O 12. Be3 Ra8 13. Nbd2 h6 14. Bc2 $5 {[%mdl 4] Leaves trodden paths.} Re8 15. Re1 exd4 16. Nxd4 {[#]} Ne5 $146 ({Predecessor:} 16... Ne7 17. Qf3 c5 18. Ne2 Bb7 19. Bxh6 gxh6 20. Qxf6 Ng6 21. Qxd8 Raxd8 22. Ng3 d5 23. exd5 Bxd5 24. Rxe8+ Rxe8 {1-0 (40) Idani,P (2583)-Tilicheev,V (2526) Konya 2018}) 17. N4f3 Bxe3 18. Rxe3 Bb7 19. Nxe5 dxe5 20. b4 Qe7 21. Nb3 Red8 22. Qe1 Bc8 23. Rd1 Be6 24. Nc5 Rxd1 25. Qxd1 Rd8 26. Rd3 Rd6 $1 27. Nb7 Rxd3 28. Qxd3 Qd7 (28... Nd7 $11) 29. Nc5 $14 Qxd3 30. Bxd3 {[%mdl 4096] Endgame KBN-KBN} Bc8 31. Be2 Kf8 32. Kf1 Ke7 33. Ke1 c6 34. Kd2 Kd6 35. Ke3 g5 (35... Nd7 $11 {remains equal.}) 36. g3 $16 Nd7 $2 (36... Ne8 $16) 37. Bg4 $18 h5 38. Bxd7 ({Weaker is} 38. Bxh5 Nxc5 39. bxc5+ Kxc5 $16) 38... Bxd7 39. Nxa6 Bxh3 {KB-KN} 40. Nc5 Kc7 {[#]} 41. Nd3 (41. f4 $1 $16) 41... f6 $14 42. f4 exf4+ 43. gxf4 gxf4+ 44. Nxf4 Bg4 45. Kf2 (45. Ng6 $16) 45... h4 $11 46. Ng6 h3 47. Kg3 Bc8 48. Nf4 Kd6 (48... c5 $5) 49. Nxh3 c5 $1 {The position is equal.} 50. Nf4 cxb4 51. cxb4 {[#] Hoping for Nd5.} Ke5 52. Nd3+ Kxe4 53. Nc5+ Kd5 54. Kf4 Kc6 55. Ke4 Kd6 $1 56. Kd4 {And now Ne4+ would win.} f5 $1 57. Kd3 {Strongly threatening Kd4.} Kd5 58. Ke2 Kd6 59. Ke3 {Kd4 is the strong threat.} Kc6 60. Kf4 {Threatens to win with Ke5.} Kd5 61. a6 {Intending a7 and mate.} Kc6 62. a7 Bb7 $1 63. Nxb7 (63. Ne6 {keeps more tension.} Kb6 64. Nd4 Kxa7 65. Nxb5+ Kb6 66. Nd4) 63... Kxb7 64. Kxf5 Kxa7 {KP-KP} 65. Ke5 Kb8 66. Kd6 Kb7 67. Kc5 Kc7 68. Kxb5 {Threatening mate with Ka6.} Kb7 69. Ka5 Ka7 70. b5 Kb7 71. b6 Kb8 72. Ka6 {White wants to mate with b7.} Ka8 73. b7+ {Black escapes into a draw. Accuracy: White = 84%, Black = 88%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.26"]
[White "Puranik, Abhimanyu"]
[Black "Iljiushenok, Ilia"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2597"]
[BlackElo "2519"]
[Annotator "TA"]
[PlyCount "151"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,151,32,21,0,0,-7,0,-3,-2,-23,-10,-60,-62,-60,-54,-57,-52,-88,-77,-81,-75,-77,-68,-64,-28,-68,-53,-88,-16,-16,-16,-14,-8,-16,-5,-5,-17,-81,-75,-188,-197,-214,-93,-77,-85,-123,-120,-119,-120,-118,-117,-120,-45,-44,-60,-135,-135,-135,-133,-186,-113,-331,-330,-358,-358,-364,-360,-345,-333,-452,-500,-493,-460,-568,-399,-441,-439,-438,-420,-467,-397,-502,-315,-315,-313,-315,-315,-315,-314,-285,-291,-289,-289,-263,-243,-12820,-12822,-12819,-12189,-12823,-12825,-12825,-12826,-12825,-12826,-12825,-12822,-12819,-12819,-12774,-12774,-1570,-953,-12831,-12831,-12832,-12832,-12832,-12828,-12832,-12832,-12824,-12831,-12835,-12835,-12838,-12839,-12839,-12839,-12840,-12840,-12842,-12841,-12840,-11547,-12850]} 1. e4 c5 2. Nc3 a6 3. g3 d6 4. Bg2 Nf6 5. Nge2 g6 6. d4 cxd4 7. Nxd4 Bg7 8. h3 O-O 9. O-O Nc6 10. Nde2 {B91: Sicilian Najdorf: 6 g3.} Rb8 11. Be3 b5 12. Nd5 {The position is equal.} Nd7 13. c3 Bb7 {[#]} 14. Qc1 $146 ({Predecessor:} 14. a4 e6 15. axb5 axb5 16. Ndf4 Qc7 17. Nd4 Nxd4 18. cxd4 Rfc8 19. Nd3 Nb6 20. b3 {½-½ (32) Ikramul,H (2090)-Garcia,J (2396) Tagaytay City 2014}) 14... e6 15. Ndf4 Nce5 16. Rd1 Qc7 17. Bd4 Nf6 18. Qc2 Ned7 {And now ...e5 would win.} 19. Be3 Nc5 {[%cal Rc5e4]} 20. f3 Rbc8 21. Bf2 Rfd8 22. Nd3 Ncd7 (22... Nxd3 $17 23. Rxd3 d5) 23. a4 $11 bxa4 24. Qxa4 d5 25. exd5 $1 Nxd5 26. Qa5 Qb8 27. Rac1 (27. f4 $11) 27... Qa8 $17 28. Nc5 (28. Bf1 $17 {was called for.}) 28... Nxc5 $19 29. Bxc5 Re8 (29... Bh6 $1 $19 {has better winning chances. White must now prevent ...Rxc5.} 30. f4 Nxf4 {[%mdl 64] Discovered Attack} 31. Nxf4 Bxg2 32. Nxg2 Bxc1 33. Rxc1 Rd5) 30. Rd3 $17 e5 31. Rcd1 e4 32. fxe4 {[%cal Rd3d5]} Nf6 33. Bd4 Bxe4 34. Bxe4 Rxe4 (34... Nxe4 $17 35. Bxg7 Nc5) 35. Nf4 $15 Rce8 36. Bxf6 (36. c4 $15) 36... Bxf6 $17 37. Nd5 Bg5 $1 38. Qb6 (38. Qc5 $17 {keeps fighting.}) 38... Qc8 (38... Re2 $1 $19 {Hoping for ...Rb8.} 39. h4 Bd8) 39. g4 $2 {This move loses the game for White.} (39. Nf6+ $17 Bxf6 40. Qxf6) 39... Re1+ $19 40. Rxe1 Rxe1+ 41. Kg2 Qc4 (41... Qe8 42. Nf6+ Bxf6 43. Qxf6 $17) 42. Qd4 Qb3 $1 {[%cal Rb3b2]} 43. Rd2 Bxd2 44. Nf6+ {[#]} Kf8 $1 45. Nd5 {[%cal Rd4h8]} Ke8 46. Nc7+ {[#]} Ke7 $1 47. Nd5+ Kd7 48. Ne3+ Kc6 49. Nc4 Qb5 ({Worse is} 49... Re2+ 50. Kf3 $11) 50. Qd6+ Kb7 51. Qxd2 {[%mdl 4096] Endgame Strongly threatening Nd6+. KQR-KQN} Re6 ({Not} 51... Qxc4 52. Qxe1 Qd5+ 53. Kf2 $11) ({Resist} 51... Qc6+ 52. Kf2 $19) 52. Nd6+ {[#]} Rxd6 $1 {[%mdl 576] Deflection} 53. Qxd6 Qxb2+ {[%mdl 64] Double Attack. KQ-KQ} 54. Kf1 Qxc3 55. Qd5+ Kb6 56. Qxf7 $2 (56. Qd8+ Kb5 57. Qd5+ Ka4 58. Kf2) 56... Qxh3+ {[%mdl 64] Double Attack. Black is clearly winning.} 57. Kf2 Qxg4 58. Qf6+ Kb5 59. Qb2+ Qb4 60. Qe2+ Qc4 61. Qe8+ Qc6 62. Qe2+ Kb6 63. Qb2+ Ka7 64. Qg7+ Qb7 65. Qe5 h5 66. Ke1 Qb4+ 67. Kd1 Kb6 68. Qb8+ Ka5 69. Qc7+ Ka4 70. Qc6+ Ka3 71. Qc1+ Ka2 {( -> ...Qg4+)} 72. Qc2+ Ka1 73. Qc6 a5 {[%cal Ba6a5,Ba5a4][%mdl 32]} 74. Kc2 Qb1+ 75. Kd2 {[#]} a4 $1 76. Qc4 {Accuracy: White = 61%, Black = 83%.} (76. Qxa4+ Qa2+) 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.27"]
[White "Stupak, Kirill"]
[Black "Wagner, Dennis"]
[Result "1/2-1/2"]
[ECO "D77"]
[WhiteElo "2518"]
[BlackElo "2590"]
[Annotator "TA"]
[PlyCount "46"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,46,13,10,0,0,0,-2,0,0,-33,-19,-23,-13,0,0,-17,2,-23,-20,-33,0,-7,0,2,2,2,2,0,0]} 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 d5 6. O-O dxc4 7. Na3 c3 8. bxc3 c5 9. e3 Nc6 10. Qe2 Bf5 11. Rd1 {D77: Fianchetto Grünfeld: 6 0-0: Replies other than 6...c6.} Qb6 12. Nc4 Qa6 13. Bf1 Rac8 {[#]} 14. Bd2 $146 ({Predecessor:} 14. Qe1 Qa4 15. Nb2 Qa5 16. d5 Be4 17. Ng5 Ne5 18. f4 Nf3+ 19. Nxf3 Bxf3 20. c4 {½-½ (47) Matnadze,A (2385)-Schut,L (2317) Tromsoe 2014}) 14... Rfd8 15. Be1 Na5 16. Nxa5 Qxa5 17. a4 Qc7 18. h3 Be4 19. Ne5 b6 20. a5 {The position is equal.} Nd7 21. axb6 axb6 22. Nxd7 Rxd7 23. Bg2 Bxg2 {An uneventful encounter. Accuracy: White = 86%, Black = 89%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.28"]
[White "Savchenko, Boris"]
[Black "Krishna C R G"]
[Result "1/2-1/2"]
[ECO "C18"]
[WhiteElo "2573"]
[BlackElo "2443"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,87,0,0,-47,0,-60,-12,-30,0,-88,-24,-29,27,23,35,35,24,28,58,52,48,45,51,29,29,29,29,29,29,0,0,0,35,0,0,0,0,0,0,0,27,27,23,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e6 2. Nc3 d5 3. d4 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 cxd4 8. Qxg7 Rg8 9. Qxh7 Qc7 10. Ne2 dxc3 11. f4 Nbc6 12. Rb1 Bd7 13. Qd3 d4 14. Nxd4 Nxd4 15. Qxd4 Nf5 16. Qb4 {C18: French: 3 Nc3 Bb4: Main line: 7 h4 and 7 Qg4.} O-O-O (16... Bc6 $5 {[%cal Rc7d8]} 17. Qc5 (17. Qxc3 Qe7 $11) 17... Qd7 $11) 17. Rb3 (17. Rg1 $11) 17... Bc6 $15 {With the idea ...Qd7.} 18. Rxc3 Rd4 19. Rc4 (19. Qc5 $11 {remains equal.} Qd8 20. Rd3 (20. Qxa7 $2 Rd1+ {[%mdl 64] Double Attack} 21. Ke2 Rxc1 $19)) 19... Rxc4 ({Better is} 19... a5 $17 20. Qc5 Rxc4 21. Qxc4 Qb6) 20. Qxc4 $11 {[#]} Qd8 $146 (20... Nh4 $142) ({Predecessor:} 20... Qa5+ 21. Qb4 Qd5 22. Qd2 Qc5 23. Qf2 Nd4 24. Be3 Nxc2+ 25. Kd2 Rd8+ 26. Bd3 Qxa3 27. Kxc2 Rxd3 28. Bc5 Ba4+ {0-1 (28) Hartung,T (2062)-Seifert,D (2168) Bad Woerishofen 2001}) 21. Qc5 Qh4+ 22. Qf2 $1 {[%cal Rf2h4] aiming for Qxh4.} ({Wrong is} 22. g3 $2 Nxg3 23. hxg3 Qxh1 $19) 22... Ng3 $1 23. Bd3 Qh8 24. Rg1 Qxh2 25. Qxa7 Ne4 $1 26. Be3 Rxg2 27. Bxe4 Rxg1+ 28. Bxg1 Qg3+ 29. Kd1 Qg4+ 30. Ke1 {[#] White threatens Bxc6 and mate.} Qg3+ 31. Kd1 Qg4+ 32. Kc1 Qxf4+ 33. Be3 Qxe4 34. Qc5 Qh4 35. Qf8+ Kd7 {[#] ...Qe1+ is the strong threat.} 36. Qd6+ Ke8 {The position is equal.} 37. Bb6 {Qb8+ would kill now.} Qh1+ 38. Kb2 {[%csl Gb6][%cal Rd6d8]} Qd5 39. Qb8+ Ke7 40. a4 f5 41. Qh8 Qc4 {Strongly threatening ...Qb4+.} 42. Qf6+ Ke8 {Hoping for ...Qb4+.} 43. Qh8+ Ke7 {White must now prevent ...Qb4+.} 44. Qf6+ {Accuracy: White = 87%, Black = 71%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.29"]
[White "Gadimbayli, Abdulla"]
[Black "Sanal, Vahap"]
[Result "1/2-1/2"]
[ECO "B42"]
[WhiteElo "2460"]
[BlackElo "2569"]
[Annotator "TA"]
[PlyCount "134"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,134,46,32,67,70,112,77,73,32,34,21,33,-11,0,-4,-14,-32,-38,-24,-27,-37,-16,-17,-14,-31,-22,-21,0,0,0,0,68,66,104,-102,-72,-171,-187,-244,-228,-252,-218,-427,-242,-253,-263,-271,-282,-362,-351,-376,-322,-404,-349,-329,-342,-352,-342,-321,-299,-333,-234,-246,-217,-237,0,-246,-154,-130,-30,-30,-34,-50,-11,-12,-12,-13,-13,-23,-8,-12,0,-14,-14,-29,-25,-31,-14,-364,-395,-69,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. O-O Qc7 7. Qe2 d6 8. c4 Be7 9. Nc3 Nbd7 10. f4 O-O 11. Be3 Re8 {B42: Sicilian: Kan Variation: 5 Bd3.} 12. Rac1 b6 13. b4 Bb7 {White is better.} 14. a4 Rac8 15. Nb3 Qb8 {[#]} 16. h3 $146 ({Predecessor:} 16. a5 d5 17. e5 dxc4 18. Bxc4 Nd5 19. Nxd5 exd5 20. Bxa6 Bxa6 21. Qxa6 bxa5 22. Nxa5 Rxc1 23. Rxc1 Qxb4 {0-1 (35) Loaiza,Y (1962)-Herrera,M (2076) Antioquia 2016}) 16... Qa8 {[%cal Rf6e4]} 17. Bd2 d5 18. cxd5 $1 exd5 19. e5 $1 {[%cal Re5f6]} Bxb4 20. Nd4 Ba3 21. Rc2 g6 22. Rd1 Bf8 23. Be3 Ne4 24. Nxe4 dxe4 25. Bc4 Nc5 (25... Bd5 $1 $11) 26. f5 $1 $14 {aiming for e6.} Rxe5 27. Qg4 $2 (27. fxg6 $16 {and life is bright.} hxg6 28. Bxf7+ $1 {[%mdl 512]} Kxf7 29. Qg4) 27... Bd5 $17 28. Bxd5 (28. Be2 $17 {was worth a try.}) 28... Rxd5 $19 ({But not} 28... Qxd5 $2 29. fxg6 Rd8 30. gxf7+ Kxf7 31. Rf2+ Ke8 32. Rdf1 $18) 29. fxg6 (29. Rf1 $142) 29... hxg6 30. Rf1 Bg7 31. Nb3 $2 (31. Ne2) 31... Re8 (31... f5 $142 32. Qxg6 Rc6) 32. Nxc5 bxc5 33. Rcf2 Re7 34. Bg5 f5 35. Qg3 Red7 36. Bf6 Qf8 37. Bxg7 Qxg7 38. h4 c4 39. h5 gxh5 40. Qb8+ Rd8 41. Qb6 R8d6 42. Qb8+ Rd8 43. Qb6 $1 Qf7 44. Qxa6 e3 (44... c3 $17 45. Qc4 e3) 45. Re2 $1 $11 Re5 46. Qh6 Qg7 47. Qf4 Rde8 {Threatens to win with ...Qg4.} 48. Qxc4+ Kh7 49. Qd3 Qg5 50. Rf3 Rd8 51. Qc4 (51. Qb3 {is more complex.} Rd2 52. Qf7+ Kh6 53. Qf8+ Qg7 54. Qxg7+ Kxg7 55. Rexe3 Ra5 56. Rb3) 51... Rd7 52. Qf4 (52. Re1 {seems wilder.} Rde7 53. Re2 Kh6 54. Qd4 Qg4 55. Qd8) 52... Qxf4 53. Rxf4 {[%mdl 4096] Endgame KRR-KRR} Kg6 {next ...Rd1+ is good for Black.} 54. Rf3 $2 {[%mdl 8192] [#]} (54. g3 $1 $11 {and White has nothing to worry.}) 54... Rd3 $1 $19 55. a5 $2 (55. Rf1 $19 h4 56. Rc1) 55... h4 (55... Ra3 $15 56. a6 Re4) 56. a6 $11 {The position is equal.} Rd1+ 57. Rf1 Rd8 58. Rf3 Rd1+ 59. Rf1 Rxf1+ 60. Kxf1 {KR-KR} f4 {And now ...Ra5 would win.} 61. Ra2 {Black must now prevent a7.} h3 62. gxh3 {Threatening Ke2.} f3 {( -> ...e2+)} 63. Ra1 $1 Re7 64. a7 e2+ 65. Ke1 f2+ 66. Kxf2 {White wants to mate with Rg1+.} e1=Q+ $1 67. Rxe1 Rxa7 {Accuracy: White = 68%, Black = 69%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.30"]
[White "Grigoriants, Sergey"]
[Black "Badelka, Olga"]
[Result "1/2-1/2"]
[ECO "B30"]
[WhiteElo "2539"]
[BlackElo "2404"]
[Annotator "TA"]
[PlyCount "31"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,31,27,45,23,29,23,12,9,15,9,10,9,16,14]} 1. e4 c5 2. Nf3 Nc6 3. Nc3 e5 4. Bc4 Be7 5. d3 d6 6. Nd2 Nf6 7. Nf1 Bg4 8. f3 Be6 9. Ne3 O-O 10. O-O Ne8 11. Ncd5 {has lost popularity (11.Ned5). B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6.} Bg5 12. a4 Nc7 13. Nxc7 {The position is equal.} Bxe3+ 14. Bxe3 Qxc7 15. Bxe6 fxe6 {[#]} 16. c3 $146 {White took control after the opening.} ({Predecessor:} 16. Qd2 Rac8 17. f4 exf4 18. Bxf4 Nd4 19. b3 h6 20. Be3 e5 21. Rxf8+ Rxf8 22. Rf1 Rxf1+ 23. Kxf1 {0-1 (79) Hagarova,Z (2335)-Lagvilava,G (2326) Leon 2001}) 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.31"]
[White "Murzin, Volodar"]
[Black "Chanda, Sandipan"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "2442"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,73,40,45,28,47,45,48,47,43,42,48,35,47,40,33,43,25,53,34,47,47,0,70,81,70,58,127,127,124,105,122,124,141,136,129,134,170,169,263,218,220,218,246,226,221,176,370,393,648,614,586,394,399,295,1240,1231,1202,1429,1262,1234]} 1. d4 e6 2. Nf3 f5 3. g3 Nf6 4. Bg2 g6 5. O-O Bg7 6. c4 O-O 7. Nc3 d5 8. Bf4 c6 9. Qc1 {[#] A87: Dutch Defence: Leningrad System: 5 Nf3.} Nbd7 $146 ({Predecessor:} 9... Ne4 10. Be5 Nd7 11. Bxg7 Kxg7 12. b4 Qc7 13. cxd5 Nxc3 14. Qxc3 exd5 15. e3 Qd6 16. Rab1 a6 {0-1 (28) Fernandes,M (1939)-Garcia Garcia,A (2158) Coimbra 2016}) 10. Bd6 Re8 11. Ne5 {White is slightly better.} Ng4 {[%cal Rd7e5]} 12. Nxg4 fxg4 13. Rd1 $1 ({Reject} 13. cxd5 exd5 14. Rd1 Nb6 $15) 13... Nb6 14. c5 Nc4 15. Bf4 $1 $36 {[%mdl 2048] White fights for an advantage.} e5 16. Bg5 Qd7 17. b3 exd4 {[#] White must now prevent ...Nb2.} 18. Nxd5 Ne5 (18... cxd5 $11 19. bxc4 Qf7) 19. Nf6+ $14 Bxf6 20. Bxf6 d3 {White leaves nothing to chance now.} ({Black should try} 20... Qf5 $14 21. Qf4 d3) 21. Bxe5 $16 Rxe5 22. Rxd3 Qe7 23. Rd6 Be6 24. e4 Re8 25. Qc3 Rh5 26. Rad1 Qg5 (26... Bf7 $142 27. Rd7 Rxc5) 27. b4 a5 28. a3 {[%cal Ba2a3,Ba3b4][%mdl 32]} ({But not} 28. bxa5 $6 Qxc5 29. Qf6 Qe5 $16) 28... axb4 29. axb4 Qe5 30. Qa3 Rf8 $2 {[#]} (30... Qf6 31. Qd3 Re5) 31. Rd8 $18 Rxd8 $2 (31... Qf6) 32. Rxd8+ Kg7 33. Qc1 Qc7 34. Qc3+ Re5 $2 (34... Qe5 35. Qa3 Qf6) 35. Rd6 {White is clearly winning.} Kf6 36. Bf1 b5 37. Be2 {Accuracy: White = 84%, Black = 50%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.32"]
[White "Zarubitski, Viachaslau"]
[Black "Ivic, Velimir"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2432"]
[BlackElo "2558"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,107,0,0,7,0,0,0,0,0,0,2,9,9,6,0,10,17,19,0,7,0,0,-8,-8,-11,-16,-14,0,-10,-17,-17,-10,-10,-10,-10,-10,-10,-10,-14,-11,-13,0,0,0,-4,0,0,0,0,0,0,0,0,0,-85,6,0,137,135,327,333,372,359,597,587,600,608,607,606,596,585,591,590,585,562,566,568,572,553,568,540,551,554,516,513,603,590]} 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. Bc4 Nb6 6. Bb3 d5 7. exd6 Qxd6 8. Na3 a6 9. O-O Bf5 10. d4 cxd4 11. Nxd4 Nxd4 12. cxd4 e6 {B22: Sicilian: 2 c3.} 13. Qf3 Qc6 14. Qxc6+ bxc6 {The position is equal.} 15. Bf4 Kd7 16. Rfc1 Be4 {[#]} 17. Nb1 $146 ({Predecessor:} 17. f3 Bd5 18. Bxd5 Nxd5 19. Bg3 a5 20. Nc4 f6 21. h4 Be7 22. b3 Rhc8 23. a4 Rg8 24. Be1 Bd8 25. Kf2 Bc7 26. g4 Nf4 27. Rcb1 Rgd8 {½-½ (27) Marbourg,D (2374)-Donovan,T (2312) ICCF email 2018}) 17... Bxb1 18. Raxb1 Be7 19. Be5 Rhg8 20. Rc2 g6 21. Re1 a5 {[%cal Ba6a5,Ba5a4][%mdl 32]} 22. a3 a4 23. Ba2 Rgc8 24. Kf1 Ra5 25. Ke2 Rb5 26. Kd1 Nd5 27. Bc4 Rb6 28. Kc1 Ra8 29. Rd1 h5 30. h3 Ra7 31. Rd3 Ke8 32. Rf3 Rd7 33. Kb1 h4 34. Ka2 g5 35. Re2 Rdb7 36. Rc2 Rd7 37. Re2 Bd8 38. g3 {[#]} (38. Rc2 $11) 38... hxg3 (38... f6 $1 $17 {[%cal Rf6e5]} 39. Bxd5 Rxd5 40. Bxf6 Rb3 41. Rxb3 (41. Rxe6+ $2 Kf7 $19) 41... axb3+ 42. Kxb3 Bxf6 43. Rxe6+ Kf7 44. Rxc6 Rxd4) 39. fxg3 $11 Rdb7 {[#]} (39... Ne7 $11 {remains equal.}) 40. Bd6 $1 $16 g4 $2 {This move loses the game for Black.} (40... f5 $16 41. Bc5 Kf7 42. Bxb6 Bxb6) 41. hxg4 $18 Ne7 42. Bc5 Rd7 $2 {[#]} (42... Ng6 43. Bxb6 Bxb6) 43. Rxf7 $3 {[%mdl 512] White is clearly winning.} Rxb2+ (43... Kxf7 44. Bxe6+) 44. Kxb2 Rb7+ 45. Kc2 Kxf7 46. Rxe6 Kg7 47. Kd3 Ng6 48. Rxc6 Rb1 49. Rc8 Bf6 50. Rg8+ Kh7 51. Ra8 Rg1 52. Be6 Rxg3+ 53. Kc4 Rg1 54. Bf5 {Accuracy: White = 97%, Black = 77%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.33"]
[White "Sivuk, Vitaly"]
[Black "Kozionov, Kirill"]
[Result "1/2-1/2"]
[ECO "E71"]
[WhiteElo "2557"]
[BlackElo "2466"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,84,22,58,28,39,31,47,41,57,29,93,68,70,70,70,66,67,76,79,84,78,57,59,57,54,58,57,45,61,66,48,0,3,4,23,27,30,0,0,-22,-17,-117,-95,-195,-202,-195,-147,-156,-74,-56,-3,-8,-8,-8,0,-8,-8,-3,0,0,0,0,0,0,0,0,0,0,0,0,-56,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 O-O 6. Be3 Nbd7 7. g4 {E71: King's Indian: 4 e4 d6 5 h3.} e5 8. d5 Nc5 9. f3 {White is slightly better.} a5 10. Qd2 Ne8 (10... c6 $1 $11 {keeps the balance.}) 11. h4 $16 f5 12. gxf5 gxf5 {[#]} 13. h5 $146 ({Predecessor:} 13. exf5 Bxf5 14. O-O-O a4 15. Nh3 a3 16. b3 Qf6 17. Bg5 Qf7 18. Nf2 Nf6 19. Bh3 {0-1 (46) Yaylali,A (1982)-Mammadov,S (2243) Istanbul 2019}) 13... f4 14. Bxc5 dxc5 15. O-O-O Nd6 16. Qe2 Bf6 17. Bh3 Kh8 18. Bxc8 Rxc8 19. Nh3 Bh4 $1 20. Rdg1 Qe7 21. Na4 {[%cal Bc3a4,Ba4b2,Bb2d3][%mdl 32]} b6 22. b3 Rg8 23. Nb2 Rxg1+ 24. Nxg1 Rg8 25. Nd3 {[#]} a4 $1 {[%mdl 512]} 26. Qf1 (26. h6 $11 {remains equal.}) (26. bxa4 Nxc4) 26... b5 27. Ne2 {[#]} (27. Nb2 $17 {was worth a try.}) 27... axb3 $1 $19 ({Much less strong is} 27... bxc4 28. bxc4 Nxc4 29. Qh3 $17) 28. axb3 bxc4 29. bxc4 Ra8 (29... Nxc4 $142 {aiming for ...Ne3.} 30. Qh3 Bf6) 30. Qh3 $17 Ra1+ 31. Kc2 $1 Ra2+ 32. Nb2 {Nc3 is the strong threat.} Nxc4 33. Qxh4 Rxb2+ 34. Kc3 $1 $132 {[%mdl 2048] White has counterplay} Qd6 35. h6 {Black must now prevent Qg5.} Rxe2 36. Ra1 {[#] Ra8+ would kill now.} Na3 $1 37. Rxa3 $11 {[%mdl 4096] Endgame Intending Ra8+ and mate. KQR-KQR} Re3+ {[%mdl 64] Double Attack} 38. Kb2 {White threatens Ra8+ and mate.} Rxa3 39. Qg5 {[%csl Gh6][%cal Rg5g7]} Qb6+ 40. Kxa3 {[%csl Gh6][%cal Rg5g7]} Qb4+ 41. Ka2 {[%csl Gh6][%cal Rg5g7]} Qd2+ 42. Kb3 {[%csl Gh6][%cal Rg5g7]} Qd3+ {Accuracy: White = 81%, Black = 88%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.34"]
[White "Raja Harshit"]
[Black "Frolyanov, Dmitry"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2472"]
[BlackElo "2556"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,90,10,2,8,13,13,10,13,18,7,6,17,13,17,17,19,16,18,14,12,12,13,12,15,22,10,0,7,0,0,0,0,0,0,0,0,-28,-35,-37,-39,-39,-39,-71,-67,-75,-49,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-120,-121,-120]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 e5 6. Bxc6 dxc6 7. a4 Qe7 8. Na3 Nh6 9. d3 f6 10. a5 O-O 11. Nc4 Nf7 {B31: Sicilian: 2...Nc6 3 Bb5 g6.} 12. Be3 Nd8 13. h3 Ne6 {[#] The position is equal.} 14. c3 $146 ({Predecessor:} 14. Qd2 Nd4 15. Nxd4 cxd4 16. Bh6 Bxh6 17. Qxh6 Be6 18. Nd2 g5 19. Nf3 Kh8 20. h4 g4 21. Nd2 Qg7 22. Qxg7+ Kxg7 23. Ra4 {½-½ (23) Montoro,G (2200)-Bonatti,W (2515) Argentina 1994}) 14... Rd8 15. Qc2 Bd7 16. Rad1 Be8 17. b3 Bf7 18. d4 cxd4 19. cxd4 exd4 20. Nxd4 Nxd4 21. Bxd4 c5 22. Bc3 Rxd1 23. Rxd1 Rd8 24. Rxd8+ Qxd8 25. Ne3 b5 26. axb6 axb6 27. Nd5 Bxd5 28. Qd3 {[%mdl 64] Pin} f5 29. Bxg7 fxe4 30. Qc3 {[#]} e3 $1 {[%mdl 512]} 31. Bf6 (31. Qxe3 Kxg7) 31... exf2+ 32. Kxf2 Qe8 33. Qe5 {[#]} (33. Qg3 $15) 33... Qxe5 $1 $17 {Black is better.} 34. Bxe5 Bxb3 {[%mdl 4096] Endgame KB-KB} 35. Bc7 b5 36. Bb6 c4 37. Ba5 Kf7 38. Ke3 Bc2 39. Kd2 Bf5 40. h4 Ke6 41. Kc3 Ke5 42. g3 Kd5 43. Bb4 Ke4 44. Bc5 Be6 45. Bb4 Kf3 {Accuracy: White = 92%, Black = 97%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.35"]
[White "Shubin, Kirill"]
[Black "Visakh N R"]
[Result "1-0"]
[ECO "B08"]
[WhiteElo "2427"]
[BlackElo "2518"]
[Annotator "TA"]
[PlyCount "109"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,109,43,49,47,50,49,27,31,53,86,207,208,201,179,195,147,142,143,145,134,247,216,231,231,287,279,246,242,161,169,379,371,369,373,370,378,370,379,332,131,589,585,756,697,2245,1886,1969,1843,1989,650,652,626,652,645,629,610,610,605,599,591,569,548,545,532,512,498,441,338,441,373,459,464,464,464,464,464,463,456,464,458,470,456,463,462,462,462,467,460,456,441,433,418,791,791,768,758,29978,29979,29977,29978]} 1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Nc3 Nf6 5. Be3 O-O 6. Qd2 a6 7. Bh6 {B08: Pirc Defence: Classical System.} b5 8. Bxg7 Kxg7 9. Bd3 {White has an edge.} Bb7 10. e5 Nfd7 (10... Nh5 $16) 11. h4 $1 $18 dxe5 12. h5 $1 {[%cal Rh5g6] Black must now prevent hxg6.} Rh8 13. Be4 Bxe4 14. Nxe4 Nf6 15. h6+ {[#]} (15. dxe5 Qxd2+ 16. Nexd2 Nxh5 $11) 15... Kg8 $146 (15... Kf8 $16) ({Predecessor:} 15... Kf8 16. dxe5 Qxd2+ 17. Nexd2 Nfd7 18. e6 Nc5 19. exf7 Kxf7 20. Ng5+ Kf6 21. Nde4+ Nxe4 22. Nxe4+ Ke5 23. Nc5 Rd8 24. O-O Kf6 25. Rae1 Nd7 26. Ne6 Nf8 27. Nxd8 {1-0 (27) McLeod,S (1980)-Perruchoud,F (1794) IECG email 2001}) 16. Nxf6+ $1 ({Don't take} 16. dxe5 $6 Qxd2+ 17. Nexd2 Nd5 $16) 16... exf6 17. Qe3 $1 ({Less strong is} 17. dxe5 Qxd2+ 18. Kxd2 fxe5 $14) 17... exd4 18. O-O-O c5 {[#]} 19. Qe4 $1 {[%cal Re4a8]} Ra7 {[#]} 20. b4 $1 $40 {[%mdl 640] White attacks with force.} Re7 $2 ({But not} 20... cxb4 $2 21. Rhe1 $18) (20... Nd7 {was called for.}) 21. Qf4 Rd7 22. bxc5 {[%cal Rf3d4]} Nc6 23. Rhe1 {Qxf6! would kill now.} Kf8 24. Rd2 {And now Rde2 would win.} g5 25. Qg4 $2 (25. Qe4 $18 {and the rest is easy.} Rd5 26. Rde2) 25... d3 $2 {[%mdl 8192] Loses the game.} (25... Rg8 $16 {is tougher.}) 26. Qe4 Ne7 27. Re3 dxc2 28. Red3 Rxd3 29. Rxd3 {[%cal Rd3d8]} Qe8 30. Qb7 (30. Qd4 $142 Rg8 31. Qxf6 {[%mdl 64] Double Attack}) 30... g4 31. Qc7 {White wants to mate with Rd8!} gxf3 {[#]} 32. Rd8 $1 {[%mdl 512] Threatening mate with Qd7.} fxg2 33. Rxe8+ Kxe8 {[%mdl 4096] Endgame KQ-KRN} 34. Qb8+ Kd7 35. Qb7+ Ke6 36. Qxg2 f5 37. Qg3 {[%csl Gc5][%cal Rg3d6]} Rd8 38. Qe3+ Kf6 39. Kxc2 Nc6 40. Qc3+ Rd4 41. Qg3 Ke6 42. Qg8 Rc4+ 43. Kd1 Rxc5 44. Qxh7 Rd5+ 45. Ke1 Rd8 46. Qg7 Ne5 47. h7 Ng6 48. Qc3 Rh8 49. Qc6+ Ke5 50. Qxa6 Rxh7 51. Qxb5+ Ke4 (51... Kd6 $142 52. Qxf5 Rh4 53. Qf6+ Kc5 54. Qxf7 Re4+ 55. Kf1 Ne7) 52. a4 Ne5 53. Ke2 Rh6 54. Qb4+ Kd5 55. Qd2+ {[%mdl 64] Double Attack. Accuracy: White = 85%, Black = 53%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.36"]
[White "Zanan, Evgeny"]
[Black "Radovanovic, Mihajlo"]
[Result "1-0"]
[ECO "A53"]
[WhiteElo "2500"]
[BlackElo "2458"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,59,-16,-27,14,12,29,33,22,22,11,0,0,0,0,0,0,0,0,0,0,0,0,0,83,84,89,86,77,64,70,70,75,75,218,112,203,187,221,49,39,39,59,42,299,286,291,292,416,383]} 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. g3 exd4 5. Qxd4 Nc6 6. Qd2 Be6 7. e4 g6 {A21: English Opening: 1...e5 2 Nc3.} 8. b3 Bg7 {...Nxe4! is the strong threat.} 9. Bg2 a5 {White is slightly better.} 10. Bb2 {[#]} a4 $1 {[%mdl 512]} 11. Nxa4 (11. bxa4 Ne5) 11... Bxc4 $1 12. Ne2 O-O 13. O-O Re8 14. Nac3 {[#]} Ba6 $146 ({Predecessor:} 14... Bxe2 15. Qxe2 Nd4 16. Qd2 c5 17. Rfe1 b5 18. Ne2 Nxe4 19. Bxe4 Rxe4 20. Nxd4 Rxd4 21. Bxd4 Bxd4 {1-0 (41) Enchev,I (2362)-Brankov,K (2307) Borovetz 2008}) 15. Rfd1 Ne5 16. Qc2 c6 17. h3 d5 (17... h5 $11) 18. exd5 $16 cxd5 19. Nxd5 {Strongly threatening Nc7.} Rc8 20. Nec3 Nxd5 21. Rxd5 Qf6 {With the idea ...Nf3+.} 22. Qd1 $1 h5 (22... Nd3 $16 23. Rxd3 Bxd3 24. Qxd3 Red8) 23. Na4 (23. Ne4 $1 $18 {[%cal Re4f6]} Nf3+ {[%mdl 64] Discovered Attack} 24. Bxf3 Qxb2 25. Rb1 Qxa2 26. Rd2 (26. Nd6 Be2 $11)) 23... b5 {[#]} (23... Qf5 $16) 24. Nc5 $1 $18 {Hoping for Bxe5.} h4 25. Nd3 $2 (25. b4 $18) 25... hxg3 $14 26. Rxe5 $1 ({But not} 26. fxg3 Qb6+ 27. Nf2 Ng4 $11) 26... gxf2+ 27. Kh1 {Black must now prevent Rxe8+.} Rxe5 $4 {[%mdl 8192]} (27... f1=R+ $14 28. Qxf1 Qxf1+ 29. Rxf1 Bxe5 30. Nxe5 Rc2) 28. Bxe5 $18 ({Inferior is} 28. Nxe5 b4 $15) 28... Qf5 {[#]} 29. Bxg7 $1 Bb7 (29... Kxg7 $142 30. Qd2 b4 31. Nxf2 Rc2 32. Qd4+ Qf6 33. Qxf6+ Kxf6) 30. Nxf2 $1 {Accuracy: White = 79%, Black = 56%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.37"]
[White "Aditya Mittal"]
[Black "Kozak, Adam"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2427"]
[BlackElo "2523"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,85,16,18,20,23,14,25,11,35,29,46,46,33,33,39,39,135,127,131,132,130,124,129,22,22,35,39,33,22,0,0,-92,247,195,405,404,443,377,384,382,396,367,821,369,356,202,357,94,226,225,230,64,78,39,39,11,8,8,8,8,11,6,7,13,18,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Nbd7 6. e3 c6 7. Bd3 Be7 8. Nge2 h6 9. Bh4 Nh5 10. Bxe7 Qxe7 11. Qc2 {11.Qd2 is the modern continuation.} Nb6 12. O-O {D36: Queen's Gambit Declined: Exchange Variation: Main line (5 Bg5 c6 6 Qc2).} O-O 13. Rae1 Bd7 14. Nc1 {White has an edge.} Rae8 15. Nb3 Nc8 16. Nc5 Nd6 {[#]} 17. Qd1 $146 ({Predecessor:} 17. Qa4 Bc8 18. Qxa7 Qg5 19. Kh1 f5 20. Be2 f4 21. Bxh5 Qxh5 22. exf4 Bh3 23. f3 Rxe1 24. Rxe1 {½-½ (41) Schneider,S (2365)-Cederstam Barsk,C (2317) Sweden 2019}) 17... Nf6 18. f3 b6 (18... Nh5 $14) 19. Nxd7 $16 Qxd7 20. e4 dxe4 21. fxe4 {And now e5 would win.} Nc8 22. Bb1 (22. Bc2 $1 $16) 22... c5 $1 $11 23. Rxf6 gxf6 24. Nd5 $36 {[%mdl 2048] White fights for an advantage.} Kg7 $1 25. Re3 {White threatens Rg3+ and mate.} Ne7 26. h4 (26. Rg3+ $11 Ng6 27. dxc5) 26... Rh8 $2 {[%mdl 8192]} ({Don't blunder} 26... Nxd5 $2 27. Rg3+ Kh7 28. exd5+ f5 29. Qg4 $1 $18 {[%mdl 512]}) (26... Qd6 $1 $17 {stays on course.} 27. Qg4+ Kh8) 27. Rg3+ $18 Ng6 $2 (27... Kf8) 28. h5 {[%mdl 64] Pin} Qd6 29. Qf3 cxd4 30. hxg6 Re5 31. Nf4 Rc8 $2 (31... d3 32. Bxd3 Rc8 33. gxf7+ Rg5) 32. gxf7+ (32. Qb3 $142 Qe7 33. gxf7+ Rg5 34. Ne6+ {[%mdl 64] Pin} Kh8 35. Rxg5 fxg5 36. Qf3 Qxe6 37. f8=Q+ Rxf8 38. Qxf8+ Qg8 39. Qxh6+ Qh7 40. Qxg5) 32... Rg5 {intending ...Rc1+.} 33. Rxg5+ (33. Bd3 $142) 33... hxg5 $2 {[#]} (33... fxg5 34. Ne2 Qf6) 34. Nd3 $2 (34. Ng6 $1 $18 {[%mdl 512] is the precise move to win.}) 34... Rf8 (34... Kxf7 $16 35. e5 (35. Qh3 Qe6 $16) 35... Qe6) 35. e5 $1 {[%cal Re5d6]} Qe6 36. exf6+ $2 ({White should try} 36. Bc2 $18) 36... Qxf6 $14 37. Qe4 {Threatens to win with Nf4!} Rxf7 38. Ne5 Qf1+ {The position is equal.} 39. Kh2 {Qg6+ is the strong threat.} Qf4+ 40. Qxf4 $1 Rxf4 41. Kg3 Rf1 42. Bc2 Kf6 43. Nf3 {White really could win this. Accuracy: White = 56%, Black = 60%.} 1/2-1/2

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.38"]
[White "Buksa, Nataliya"]
[Black "Lobanov, Sergei"]
[Result "0-1"]
[ECO "C58"]
[WhiteElo "2403"]
[BlackElo "2507"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,80,20,21,32,25,41,40,45,40,31,15,38,36,33,31,61,72,74,29,64,75,181,179,176,55,80,56,91,79,106,0,0,0,0,0,0,0,0,0,0,0,4,0,0,-110,85,0,39,0,20,-33,-25,-26,-26,-631,-631,-472,-368,-1453,-1378,-1526,-754,-29993,-29990,-29990,-29991,-29991,-29985]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Bd3 Nd5 {C58: Two Knights: 4 Ng5 d5 5 exd5 Na5 sidelines.} 9. h4 Be7 10. Qf3 f5 {White is slightly better.} 11. Bxf5 Rf8 $1 12. Qh5+ g6 13. Bxg6+ $1 hxg6 14. Qxg6+ Kd7 15. d3 Kc7 16. Bd2 Nb7 17. Nc3 {[#]} Nb4 $146 {[#]} (17... Nf4 $16 18. Bxf4 Rxf4) ({Predecessor:} 17... Qd6 18. Qe4 Nc5 19. Qe2 Nf4 20. Bxf4 Rxf4 21. g3 Rb4 22. O-O-O Rab8 23. Nf7 Qf6 24. Qxe5+ Qxe5 25. Nxe5 {0-1 (78) Tokhirjonova,G (2379)-Monnisha,G (2295) Mumbai 2018}) 18. O-O-O $1 $18 Nc5 {[%cal Rc5d3]} 19. Nb5+ (19. Nf7 $18 Qe8 20. Nxe5) 19... Kb6 {White must now prevent ...Bf5.} 20. Bxb4 Kxb5 21. Bxc5 Bxc5 22. d4 (22. Ne4 $16 {Threatens to win with a4+!} Bf5 23. Nc3+ Kb6 24. Na4+ Kc7 25. Nxc5 Bxg6 26. Ne6+ {[%mdl 64] Double Attack} Kd6 27. Nxd8 Raxd8 28. h5) 22... exd4 $11 {Strongly threatening ...Qd5.} 23. Qd3+ Kb6 24. Ne4 Qd5 {...Bf5 is the strong threat.} 25. Nxc5 Qxc5 26. f3 Rd8 27. Qb3+ Ka5 28. g4 Ba6 29. Qf7 {[#]} (29. Rhe1 $11) 29... Qb6 $2 (29... Be2 $1 $17 {[%cal Re2d1] stays on course.} 30. Rd2 d3) 30. a3 (30. Rhe1 $16) 30... Rd5 31. Qe7 {[%mdl 1024] White has compensation.} c5 {[%cal Bc6c5,Bc5c4,Bc4c3][%mdl 32]} 32. h5 (32. Rhe1 $11) 32... Rb8 $36 {[%mdl 2048] Black is pushing.} 33. b3 {Hoping for Qe1+.} c4 34. Qe1+ $2 {[%mdl 8192]} (34. Qb4+ $11 Qxb4 35. axb4+ Kxb4 36. bxc4 Kxc4 37. Kd2) 34... c3 $19 {And now ...Qd6 would win.} 35. Qe7 Rb7 36. Qf8 $2 {[#]} (36. Qe8 Bb5 37. Qg6) 36... Bc4 $1 {[%mdl 512]} 37. h6 {[#]} (37. bxc4 Qb2#) 37... Bxb3 $1 {[%mdl 512]} 38. Rde1 (38. cxb3 Qxb3) 38... Bc4 {[%csl Gb7][%cal Rb6b1] Black mates.} 39. Qb4+ Qxb4 40. axb4+ Kxb4 {Never resign too early! Accuracy: White = 51%, Black = 64%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.39"]
[White "Karthik Venkataraman"]
[Black "Pogosyan, Stefan"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "2483"]
[BlackElo "2455"]
[Annotator "TA"]
[PlyCount "49"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,49,-27,-28,-33,-35,-27,-37,-48,-43,-85,-62,-88,-91,-89,-94,-93,-65,-66,-59,-75,-49,-96,-53,-91,-88,-77,-67,-66,0,0,154,152,229,220,218,290,353,336,519,514,487,376]} 1. b3 d5 2. Bb2 Bg4 3. f3 Bf5 4. e3 e6 5. d4 Nf6 6. Nc3 {A01: Nimzowitsch-Larsen Opening.} c5 7. Nge2 {[#]} Nc6 $146 ({Predecessor:} 7... h6 8. g4 Bh7 9. h4 Nc6 10. a3 cxd4 11. exd4 Nd7 12. f4 Nf6 13. g5 Ne4 {0-1 (37) Guo,A (2281)-Checa,N (2454) Irving 2017}) 8. Qd2 {Black is slightly better.} Rc8 9. a3 h5 10. Ng3 cxd4 11. exd4 Bh7 12. Bd3 Bd6 13. Bxh7 Rxh7 14. Nge2 a6 15. h4 Qc7 16. O-O-O Ne7 17. Kb1 Nf5 18. Qd3 Bg3 (18... Kf8 $15) 19. Bc1 $11 Bxh4 $2 ({Better is} 19... Rh8 $11) 20. Bf4 $16 Qc6 {[#]} (20... Qa5 $16) 21. Kb2 $1 $18 g5 22. Be5 Nd7 23. g4 Nxe5 (23... hxg4 {keeps fighting.} 24. fxg4 Nxd4) 24. dxe5 Ng3 25. Rxh4 {Accuracy: White = 71%, Black = 52%.} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.40"]
[White "Makarian, Rudik"]
[Black "Gokerkan, Cem Kaan"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "2414"]
[BlackElo "2461"]
[Annotator "TA"]
[PlyCount "42"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 1,1,21]} 1. d4 {A rather calm draw.} {Predecessor:} Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 {E66: King's Indian: Fianchetto: 6...c5 7 0-0 Nc6 8 d5.} Nc6 7. O-O Bg4 8. d5 Na5 9. Nd2 c5 10. Qc2 a6 11. h3 Bd7 12. b3 b5 13. Bb2 Rb8 14. Nd1 Qc8 15. Kh2 e6 16. e4 bxc4 17. bxc4 Rb4 18. Bc3 Rxc4 19. Nxc4 Nxc4 20. dxe6 fxe6 21. Rc1 e5 {1-0 (56) Grischuk,A (2777)-Nakamura,H (2736) chess.com INT 2020} 1-0

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.41"]
[White "Nikitenko, Mihail"]
[Black "Pranesh M"]
[Result "0-1"]
[ECO "A15"]
[WhiteElo "2440"]
[BlackElo "2425"]
[Annotator "TA"]
[PlyCount "42"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,42,-43,-47,-40,-38,-38,-40,-35,-50,-46,-38,-53,-37,-63,-45,-47,-29,-60,-12,-25,31,0,0,4,0,8,-6,7,0,0,0,-4,56,-668,-665]} 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 d4 5. b4 Bxb4 6. Qa4+ {A13: English Opening: 1...e6.} Nc6 7. Ne5 Rb8 8. Nxc6 {Black is slightly better.} bxc6 9. Qxa7 Rb6 $1 10. Qa4 O-O 11. O-O d3 12. e3 {[#]} Nd7 $146 ({Predecessor:} 12... Bb7 13. Bb2 Be7 14. Ba3 Nd7 15. Nc3 Bd6 16. Bxd6 cxd6 17. Rfb1 {½-½ (17) Matsenko,S (2526)-Bacallao Alonso,Y (2554) Matanzas 2017}) 13. Bb2 Nc5 14. Qd1 Ba6 (14... Qe7 $11) 15. Qg4 {[%csl Gb2][%cal Rg4g7] [#]} f6 $36 {[%mdl 2048] Black fights for an advantage.} 16. a3 Ba5 $1 17. Bd4 Qe7 18. Bxc5 Qxc5 19. Qxe6+ Kh8 20. Rc1 f5 ({Black should try} 20... Bc8 $11 21. Qe4 Bf5) 21. Nc3 $2 {[%mdl 8192] [#]} (21. Qd7 $14) 21... Bxc3 $1 {Accuracy: White = 64%, Black = 76%.} 0-1

[Event "18th Aeroflot Open-A 2020"]
[Site "Moscow"]
[Date "2020.02.27"]
[Round "9.42"]
[White "Vignesh N R"]
[Black "Sreeshwan Maralakshikari"]
[Result "1/2-1/2"]
[ECO "B18"]
[WhiteElo "2436"]
[BlackElo "2440"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2020.02.19"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,68,16,10,30,30,25,21,17,18,21,23,25,18,64,0,89,0,61,56,58,34,32,32,32,30,39,28,28,28,28,28,28,28,28,21,22,22,22,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 e6 8. Ne5 Bh7 9. Bd3 Bxd3 10. Qxd3 Nd7 {B19: Classical Caro-Kann: 4...Bf5 main line.} 11. Bf4 Nxe5 12. Bxe5 Qa5+ 13. c3 Nf6 14. O-O Ng4 15. Rad1 Qd8 {[#]} 16. h5 $146 (16. Ne4 $14) ({Predecessor:} 16. Ne4 Qxh4 17. Bg3 Qh5 18. d5 Qxd5 19. Qe2 Qf5 20. Qd3 Qd5 21. Qe2 Qf5 22. Qd3 {½-½ (22) Piorun,K (2631)-Rodshtein,M (2673) Skopje 2019}) 16... Qg5 (16... Qh4 $11 17. Ne4 O-O-O) 17. Rfe1 ({White should try} 17. Ne4 $16 Qh4 18. f3 Nxe5 19. dxe5) 17... O-O-O (17... Be7 $11) 18. Qf3 $14 Nxe5 19. dxe5 Rxd1 $1 20. Rxd1 Qxe5 21. Qxf7 {[#] Intending Qe8+ and mate.} Bc5 22. Qg6 Rd8 23. Rxd8+ Kxd8 24. Ne4 Bb6 25. g3 Ke7 26. Kg2 Kf8 {The position is equal.} 27. b3 Bd8 28. f4 Qd5 29. c4 Qa5 30. Qxe6 {[#] Strongly threatening Nd6.} Qxa2+ 31. Kh3 {Threatening mate with Nd6.} Qa1 32. Qf5+ Ke7 33. Qc5+ Kf7 {And now ...Qh1+ would win.} 34. Qf5+ Ke7 {Accuracy: White = 89%, Black = 86%.} 1/2-1/2

