[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "1.1"]
[White "Romanov, Evgeny"]
[Black "Khairullin, Ildar"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2599"]
[BlackElo "2615"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,82,-18,19,7,0,0,14,0,0,0,0,0,0,0,112,106,113,59,47,56,93,94,303,198,189,169,165,46,430,296,284,295,229,212,208,0,0,0,0,-14,-14,-10,-10,-13,-8,-56,-58,-81,-41,-141,-77,-87,-88,-85,-78,-240,-197,-176,-200,-180,-160,-244,-220,-217,-217,-365,-327,-674,-658,-542,-542]} 1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bb5 Nd4 6. O-O Nxb5 7. Nxb5 Nf6 8. Qe1 {B23: Closed Sicilian: Lines without g3.} O-O 9. d3 d5 10. Nc3 {The position is equal.} dxe4 11. dxe4 b6 12. Qh4 Bb7 13. f5 {[#]} h5 $146 (13... gxf5 $11 {remains equal.} 14. exf5 Bxf3 15. Rxf3 Qd4+ 16. Qxd4 cxd4) ({Predecessor:} 13... gxf5 14. Bh6 fxe4 15. Rad1 Qc8 16. Ne5 Bxh6 17. Qxh6 Qe6 18. Qg5+ Kh8 19. Rf5 Rg8 20. Qh6 Rxg2+ 21. Kxg2 Qxf5 22. Nxf7+ Kg8 23. Ng5 e3+ {0-1 (23) Bogdanov,D (2215)-Nilssen,J (2320) Skovlunde 1999}) 14. Bg5 $1 $16 Qc7 15. e5 ({Better is} 15. Rae1 $16) 15... Ng4 $1 $14 16. Bxe7 Rfe8 17. f6 Bf8 $2 (17... Nxe5 $16 18. Nxe5 Qxe5) 18. e6 Bxe7 19. exf7+ Kxf7 20. fxe7 (20. Nb5 $1 $18 Qd7 21. Qxg4 $1 {[%mdl 64] Remove Defender} (21. fxe7 Kg7 $18) 21... hxg4 22. Ne5+ {[%mdl 64] Double Attack} Ke6 23. Nxd7) 20... Kg7 $2 {[%mdl 8192]} (20... Qxe7 $14 21. Ne5+ {[%mdl 64] Double Attack, Discovered Attack (Double check)} Kg8 22. Nxg6 Qg7) 21. h3 Ne3 22. Ng5 Rxe7 {[#]} 23. Rf7+ {[%mdl 512]} Kg8 24. Rxe7 (24. Rf6 $18 Rg7 25. Qf2) 24... Qxe7 $11 25. Re1 Qe5 $40 {[%mdl 128] Black has some attack.} ({Wrong is} 25... Bxg2 $2 26. Nd1 $18) 26. Nd1 (26. Nce4 {looks sharper.} Nf5 27. Qf2 Bxe4 28. Rxe4 Qxb2 29. Qd2) 26... Nxg2 {[%mdl 64] Double Attack, Discovered Attack} 27. Qc4+ Qd5 28. Qxd5+ Bxd5 29. Re5 (29. Re7 $5 {[%cal Rc2c4]}) 29... Nf4 30. Ne3 Rd8 31. Kf2 (31. Re7 $15) 31... Bc6 (31... Rf8 $142 {And now ...Nd3+ would win.} 32. Ke1 Bxa2) 32. Kg3 $17 Ne2+ 33. Kf2 {[#]} Nd4 34. Ne6 $2 (34. h4 $17) 34... Rd6 35. Nxd4 cxd4 $19 {[%mdl 4096] Endgame KRB-KRN} ({Don't play} 35... Rxd4 36. Re6 $17) 36. Nc4 Rd5 37. Rxd5 (37. Re6 $17 {was called for.} Rf5+ 38. Ke2) 37... Bxd5 38. Nd6 Bxa2 39. Nc8 (39. Nb5 $142) 39... Be6 40. Ne7+ (40. Nxa7 Bxh3 41. Nb5) 40... Kf7 41. Nc6 Bxh3 {What a bad dream for White.  Weighted Error Value: White=0.49/Black=0.37} 0-1

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "1.2"]
[White "Shimanov, Aleksandr"]
[Black "Khalifman, Alexander"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2597"]
[BlackElo "2608"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,65,6,5,8,14,27,25,27,20,34,5,5,5,18,11,6,20,16,0,59,0,0,-127,-130,-131,-21,-18,0,-69,-62,-74,-50,-47,-44,-29,93,-18,-27,-15,-18,-68,-25,-28,-33,-43,-45,-54,-20,-37,-8,-32,-27,-30]} 1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nf3 Bc5 5. c3 d6 6. h3 h6 7. Nbd2 O-O {7...a6 is the hot move.} 8. O-O a5 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 9. Re1 Ba7 10. Nf1 Be6 {White has an edge.} 11. Bb5 Ne7 {[%cal Bc6e7,Be7g6,Bg6h4][%mdl 32]} 12. d4 exd4 13. Nxd4 {[#]} c6 $146 ({Predecessor:} 13... Bd7 14. Bxd7 Qxd7 15. Ng3 Rfe8 16. Qf3 Bxd4 17. cxd4 d5 18. e5 Nh7 19. Be3 Ra6 {1-0 (46) Fedorov,A (2562)-Loetscher,R (2414) Riga 2014}) 14. Bd3 Ng6 15. Ng3 Re8 16. Bc2 d5 (16... Bd7 $11) 17. exd5 (17. f4 $1 $14) 17... Bxd5 $11 18. Be3 (18. Ndf5 $11 {keeps the balance.}) 18... Nh4 $1 $17 {[%cal Rh4g2]} 19. f3 {[#]} Qd6 ({Black should try} 19... Bxf3 $1 $17 {[%mdl 512]} 20. gxf3 (20. Nxf3 Rxe3) 20... Bxd4 21. cxd4 Qd7) 20. Nf1 $11 Nh5 21. Qd3 (21. Qd2 $1 $11) 21... g6 $15 22. Qd2 $1 {[#]} Bxf3 $1 23. Qf2 {[%cal Rf2h4]} Bxd4 24. cxd4 {[#]} Be4 (24... Qf6 $1 $11 25. gxf3 Nxf3+ {[%mdl 64] Double Attack} 26. Kg2 Nf4+ 27. Kg3 Nh5+ 28. Kg2 Nf4+ 29. Kg3 Nxe1 30. Rxe1 g5) 25. Qxh4 (25. Bxe4 $16 Rxe4 26. Nd2 Rxe3 27. Rxe3) 25... Bxc2 $11 26. Bxh6 Bd3 27. Nd2 Qg3 (27... Ng3 {seems wilder.} 28. Be3 a4 29. Nf3 Re4 30. Qg5 Nf5) 28. Qxg3 Nxg3 29. Be3 Re6 30. Bf2 {Hoping for Rxe6.} Ne4 31. Nxe4 Rxe4 32. Rxe4 Bxe4 33. Re1 {Weighted Error Value: White=0.27/Black=0.25} 1/2-1/2

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "1.3"]
[White "Matlakov, Maxim"]
[Black "Gorovykh, Eduard"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "2688"]
[BlackElo "2488"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,100,26,0,0,0,0,0,20,11,42,-20,-15,-37,-31,-32,-20,-32,11,-10,0,0,0,0,0,0,0,-8,-8,-12,-6,-10,-11,-14,0,-6,16,0,15,0,0,0,0,0,0,0,0,0,0,-113,-131,-121,-122,-121,-127,-149,-145,-322,-276,-440,-429,-2458,-1659,-29985,-447,-777,-772,-761,-742,-782,-764,-754,-716,-1196,-895,-888,-884,-859,-815,-902,-863,-975,-940,-996,-822,-5584,-5222,-29983,-707,-29984,-29985,-29997,-29998]} 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Bd7 6. Bd3 cxd4 {C02: French: Advance Variation.} 7. Nxd4 Bc5 8. Qg4 Ne7 {The position is equal.} 9. O-O Ng6 (9... O-O {keeps more tension.} 10. Nf3 f5 11. exf6 Rxf6 12. Qh3 Ng6) 10. Nf3 ({White should play} 10. a4 $14) 10... Bb5 $11 11. Bxb5+ Qxb5 12. Nbd2 Nd7 {[#]} 13. Nb3 $146 ({Predecessor:} 13. c4 Qc6 14. b3 Ndxe5 15. Nxe5 Nxe5 16. Qxg7 Ng6 17. Nf3 Bf8 18. Qd4 dxc4 19. Bg5 c3 20. Rad1 Be7 21. Qg7 Bf8 22. Qd4 Be7 23. Qg7 Bf8 {½-½ (23) Khairullin,I (2544)-Volkov,S (2623) Moscow 2008}) 13... Be7 14. Re1 h5 15. Qg3 Nc5 16. Nxc5 Bxc5 17. Ng5 {Nxe6! is the strong threat.} Ne7 18. Qf3 Nf5 19. b3 Be7 20. Bd2 Rc8 21. h3 Qc6 22. Rac1 h4 23. Qg4 Qa6 24. a4 Qd3 25. Red1 O-O 26. Qh5 {[%csl Gg5][%cal Rh5h7]} Bxg5 27. Bxg5 Qe4 28. Re1 Qd3 29. Bxh4 (29. Red1 $11 {keeps the balance.} Qe4 30. Re1) 29... Rxc3 $17 30. Bg5 Rfc8 31. Rcd1 Qc2 32. Qg4 b6 ({Don't take} 32... Qxb3 33. Rb1 $17) ({Not} 32... Rxb3 $2 33. Rc1 $18) 33. Bf6 $2 {This costs White the game.} (33. Rb1 $17 {keeps fighting.}) 33... Qxb3 34. Qg5 (34. Rb1 {was necessary.} Qa3 35. Ra1) 34... Kf8 $19 35. g4 (35. Qh5 $142 gxf6 36. exf6) 35... gxf6 36. exf6 {[#]} Nd6 (36... Rg3+ $142 $3 {[%mdl 512]} 37. fxg3 Qxg3+ {[%mdl 64] Double Attack} 38. Kf1 {[#]} Rc3 $1 39. Rd2 Qxh3+ 40. Rg2 Ng3+ 41. Kg1 Qh1+ 42. Kf2 Rc2+ 43. Kf3 Qxg2+ 44. Kf4 Qd2+ 45. Re3 Ne2+ 46. Kf3 Ng1+ 47. Kf4 Qh2+ 48. Rg3 Ne2+ {[%mdl 64] Double Attack, Pin} 49. Ke5 Qxg3+ 50. Qf4 Qxf4#) 37. Qg7+ (37. Rb1 $142 Qc2 38. Qh5) 37... Ke8 38. Rxe6+ Kd7 {( -> ...Rg3+!)} 39. Rde1 d4 40. Re7+ Kc6 41. h4 Qd5 {And now ...Rh3 would win.} 42. Qg5 Qxg5 43. hxg5 Rg8 44. f4 d3 45. Kf2 Rh8 {aiming for ...d2.} 46. Rd1 Kd5 47. f5 Ne4+ 48. Ke3 Rh3+ 49. Kf4 Nf2 50. g6 Rc4+ {[%mdl 64] Double Attack.  Weighted Error Value: White=0.79/Black=0.38} 0-1

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "1.4"]
[White "Goganov, Aleksey"]
[Black "Yevseev, Denis"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2575"]
[BlackElo "2474"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,67,15,20,20,12,23,16,29,30,42,31,39,27,43,52,67,56,51,43,90,95,92,90,102,98,100,59,57,54,72,60,67,66,66,62,64,64,68,53,50,17,18,25,22,22,29,24,70,29,111,111,206,168,521,518,518,510,510,492]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nd2 e6 5. Nb3 Nd7 6. Nf3 Ne7 {B12: Caro-Kann: Advance Variation.} 7. Be2 h6 {outshines the older 7...Nc8.} 8. O-O Bh7 {The position is equal.} 9. a4 Ng6 10. a5 a6 11. Be3 Be7 12. c4 {[#]} dxc4 $146 ({Predecessor:} 12... O-O 13. Nfd2 Nh4 14. f4 f6 15. cxd5 cxd5 16. Nf3 Nf5 17. Bf2 fxe5 18. dxe5 g5 {1-0 (44) Kantans,T (2531)-Krupenski,J (2413) Viljandi 2017}) 13. Nbd2 {[%cal Bb3d2,Bd2c4,Bc4d6][%mdl 32]} O-O 14. Nxc4 Nh4 15. Nxh4 Bxh4 16. Qb3 Rb8 17. Bd2 Be7 18. Bb4 Be4 19. Nd6 Bd5 20. Bc4 (20. Qg3 {is interesting.} b6 21. Rfd1 Bh4 22. Qe3 Qg5 23. Qxg5 Bxg5 24. axb6 Nxb6 25. Rxa6 Nc8 26. Ba3) 20... Bxc4 21. Qxc4 Nf6 {[#]} 22. Nxb7 $1 Rxb7 23. Bxe7 Qxe7 24. exf6 Qxf6 25. b4 Rb5 26. Qxc6 Qxd4 27. Qxa6 Rxb4 28. Rfd1 Qf6 29. Qa7 Rc8 (29... Rd8 $11 {keeps the balance.}) 30. a6 $16 Rc2 (30... Rbb8 $16 {keeps fighting.}) 31. Qe3 {a7 is the strong threat.} Rb3 $2 {[#]} (31... Rc8 {is a better chance.} 32. Qe1 Qe7) 32. a7 $1 $18 {White is clearly winning.} Rxe3 33. a8=Q+ Kh7 34. fxe3 {Weighted Error Value: White=0.07/Black=0.33} 1-0

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "1.5"]
[White "Lintchevski, Daniil"]
[Black "Levin, Evgeny A."]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "2555"]
[BlackElo "2502"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,95,30,22,39,41,38,44,35,16,10,-58,27,37,50,57,124,121,121,133,131,130,124,118,116,133,124,87,125,61,60,56,57,56,58,53,50,53,50,53,52,51,64,36,72,75,70,37,77,77,80,78,91,89,122,113,114,104,177,175,173,123,135,123,332,237,229,229,592,592,592,585,585,578,968,970,901,812,783,585]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nxc6 Qf6 6. Qd2 dxc6 7. Nc3 Be6 8. Na4 Rd8 9. Bd3 Bd4 10. O-O Nh6 {C45: Scotch Game.} 11. c3 Ng4 {aiming for ...Qh4.} 12. cxd4 Qxd4 {[%mdl 64] [#] Double Attack. White is slightly better.} 13. Qg5 $146 {And now Bc2 would win.} ({Predecessor:} 13. Qc2 Qxd3 14. Qxd3 Rxd3 15. Nc5 Rd4 16. Nxb7 Rxe4 17. f3 Rb4 18. Nc5 Ne5 19. b3 Rb5 20. Ba3 Nd7 21. Nxe6 fxe6 22. Rac1 c5 23. Rfe1 Kf7 24. Red1 {½-½ (24) Ochoa de Echaguen,F (2450)-Sharif,M (2425) Barcelona 1993}) 13... h6 $1 {[%cal Rh6g5]} 14. Qa5 (14. Qf4 $11 Qxa4 15. Be2) 14... Qxd3 (14... b6 $1 $15 15. Qc3 (15. Qxa7 Qd6 $17) 15... Qxc3 16. Nxc3 Rxd3) 15. Bf4 $11 Qxe4 16. Bxc7 Rd5 (16... Rd7 $14) 17. Qxa7 $16 O-O 18. Nc3 Qd4 19. Qxb7 Rf5 {[%cal Rg4f2]} 20. Rad1 ({Not} 20. Qxc6 Rxf2 21. Rxf2 Qxf2+ 22. Kh1 Qxb2 $17) 20... Qc4 21. Qb6 c5 22. Bg3 Qb4 {[#]} 23. Qxb4 (23. Rd6 $1 $16) 23... cxb4 $14 24. Ne4 Bxa2 25. Rd4 {Black must now prevent Nd6.} Nf6 26. Nd6 Rd5 27. Rxb4 Nh5 28. Ne4 Nxg3 29. hxg3 Rd3 30. Re1 Rc8 31. Nc3 Be6 32. f3 Rd2 33. Re2 Rd6 34. g4 Ra8 35. Kf2 g5 36. Ne4 $36 {[%mdl 2048] White is in control.} Rc6 37. Rd4 Ra2 (37... Ra1 $16 {was worth a try.} 38. b4 Rb1 39. Rd8+ Kg7) 38. b4 $18 {[%cal Bb2b4,Bb4b5,Bb5b6][%mdl 32]} Ra1 39. Nc5 Kg7 40. Rb2 Ba2 $2 {This costs Black the game.} (40... Rc1 $16 41. Nxe6+ fxe6) 41. Nd7 Be6 42. b5 Rc7 {[#]} (42... Rcc1 43. b6 Rcb1) 43. b6 $1 {White is clearly winning.} Rb7 44. Nc5 Rb8 45. b7 Kf6 46. Rd6 {Threatens to win with Nd7+.} Ke7 47. Rdb6 Bd5 48. Na6 {Weighted Error Value: White=0.14/Black=0.33} 1-0

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "2.1"]
[White "Khairullin, Ildar"]
[Black "Levin, Evgeny A."]
[Result "1/2-1/2"]
[ECO "E15"]
[WhiteElo "2615"]
[BlackElo "2502"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,21,13,0,3,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Qa4 Bb7 6. Bg2 c5 7. dxc5 bxc5 8. O-O Be7 9. Nc3 {9.Rd1 might become the main line.} O-O 10. Qb3 Qb6 {E15: Queen's Indian: 4 g3 sidelines, 4 g3 Ba6 and 4 g3 Bb7 early deviations.} 11. Rd1 {[#] Not much happened in this game. Not enough moves} {Predecessor:} Rd8 $146 12. Bf4 d6 13. Rd2 Nc6 14. Rad1 Qxb3 15. axb3 e5 16. Bg5 Na5 17. Bxf6 gxf6 18. Nd5 Bxd5 19. Rxd5 Nxb3 20. Nh4 Rab8 21. e3 Na5 22. Nf5 Bf8 23. Nxd6 Bxd6 24. Rxd6 Rxd6 25. Rxd6 Nxc4 {½-½ (61) Goryachkina,A (2438)-Bodnaruk,A (2411) Khanty-Mansiysk 2014} 1/2-1/2

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "2.2"]
[White "Yevseev, Denis"]
[Black "Lintchevski, Daniil"]
[Result "1/2-1/2"]
[ECO "D27"]
[WhiteElo "2474"]
[BlackElo "2555"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,75,9,0,0,0,0,0,0,0,0,-12,26,6,0,0,0,0,0,0,0,-60,-63,-69,-68,-76,-15,-27,-27,-21,0,0,0,0,0,0,0,0,0,0,0,0,0,0,12,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 Nf6 5. Bxc4 e6 6. O-O c5 7. Bb3 Be7 8. Nc3 O-O 9. Qe2 cxd4 10. Rd1 Nc6 11. exd4 Na5 {D27: Queen's Gambit Accepted: Classical main line: 7 e4!? and 7 a4.} 12. Bc2 b5 13. Bg5 {Hoping for Bxf6.} Bb7 14. Bxf6 Bxf6 15. Be4 {[#]} Bd5 $146 ({Predecessor:} 15... Qb6 16. Rd3 Nc4 17. Bxb7 Qxb7 18. Ne4 Be7 19. b3 Nb6 20. Nc5 Qd5 21. Rc1 Qf5 {½-½ (48) Ikonnikov,V (2558)-Rabiega,R (2531) Germany 2010}) 16. Bxd5 exd5 17. Ne5 Qd6 18. Ng4 Rad8 19. Qf3 Bg5 20. h4 (20. Ne5 $11) 20... Bxh4 $15 21. Ne3 Bg5 22. Ncxd5 {[#]} Nc4 (22... f5 $1 $17 {[%cal Rf5f4] And now ...f4 would win.} 23. Nc3 Bxe3 24. fxe3 f4) 23. b3 Nxe3 24. Nxe3 g6 {The position is equal.} 25. Rac1 Qa3 26. Rc2 Rfe8 27. d5 Bxe3 28. fxe3 Qe7 29. Rd3 Qe5 30. Rc6 a5 31. d6 Re6 {[%cal Re6d6]} (31... Rd7 {is more complex.} 32. Qd5 Kg7 33. Rc5 Qxd5 34. Rcxd5 a4) 32. Qf4 (32. Rd5 {looks sharper.} Qa1+ 33. Qf1 Qb2 34. Qf2 Qa1+ 35. Kh2) 32... Kg7 33. Qxe5+ Rxe5 34. Kf2 Kf6 35. a3 Ke6 36. Ra6 b4 37. axb4 axb4 38. Rd4 {Weighted Error Value: White=0.06/Black=0.05} 1/2-1/2

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "2.3"]
[White "Gorovykh, Eduard"]
[Black "Goganov, Aleksey"]
[Result "0-1"]
[ECO "A07"]
[WhiteElo "2488"]
[BlackElo "2575"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,72,10,10,13,9,42,-1,0,-20,0,0,0,0,4,0,0,0,0,0,0,0,0,-27,-16,-25,-29,-50,-48,-54,-50,-84,-68,-197,-199,-221,-180,-179,-167,-159,-164,-174,-180,-150,-168,-166,-104,-132,-97,-133,-80,-105,-30,-33,0,-300,-306,-318,-316,-431,-387,-399,-368]} 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. O-O e5 5. d3 Ne7 6. e4 dxe4 7. dxe4 Qxd1 {A07: Réti Opening: New York and Capablanca Systems.} 8. Rxd1 f6 $5 {[%mdl 4] [#] Leaves trodden paths.} 9. Nbd2 $146 ({Predecessor:} 9. Be3 Be6 10. Nbd2 Nd7 {½-½ (10) Vajda,L (2600)-Nisipeanu,L (2686) Zalakaros 2017}) 9... Be6 {The position is equal.} 10. Nf1 Na6 11. Be3 Kf7 12. c3 Rhd8 13. b3 b6 14. N1d2 Nc5 15. Bxc5 bxc5 16. Bf1 Nc8 17. Bc4 (17. Nc4 $5 {[%cal Rd1d8]} Nd6 18. Nfd2 $11) 17... Nd6 18. Bxe6+ Kxe6 19. a4 Rab8 20. h4 Bh6 21. Re1 Nb7 22. Nc4 ({White must play} 22. Ra2 $1 $15) 22... Rd3 $1 $19 {[%csl LRc3,LRf3][%cal Rd3f3]} 23. Nh2 Rxc3 24. Ng4 Bf8 25. Re3 Rxe3 26. Ngxe3 Nd6 27. Nxd6 cxd6 {[%mdl 4096] Endgame KRB-KRN} 28. Rb1 Be7 ({Black should play} 28... Rb4 $19 29. Nc4 f5) 29. f3 Bd8 30. Kf2 Ba5 ({Black should try} 30... f5 31. Nd5 h6) 31. Nd5 c4 (31... h5 $17) 32. b4 $11 c3 33. b5 $2 {[%mdl 8192] [#]} (33. Rb3 $1 $11) 33... Rc8 $1 $19 {Strongly threatening ...c2.} 34. Ke2 {[#]} Rc4 $1 35. Ra1 Rd4 36. Ra2 f5 {Weighted Error Value: White=0.33/Black=0.15} 0-1

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "2.4"]
[White "Khalifman, Alexander"]
[Black "Matlakov, Maxim"]
[Result "0-1"]
[ECO "E05"]
[WhiteElo "2608"]
[BlackElo "2688"]
[Annotator "TA"]
[PlyCount "46"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,46,19,6,5,16,12,37,21,20,37,27,-6,-14,-11,-7,-29,-30,-58,-52,-62,-60,-54,-51,-44,-32,-72,-68,-341,-343,-387,-382,-1112,-1097,-1068,-1046]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 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 $1 {[%mdl 4] is more profitable than 9...c6 at the moment.} 10. Nxc4 {White is slightly better.} c5 11. dxc5 Ba6 12. Nbd2 Bxc5 13. Nb3 Nd7 {[#] next ...Rc8 is good for Black.} 14. e4 $146 ({Predecessor:} 14. Nxc5 Nxc5 15. Ne3 Rc8 16. Nxd5 exd5 17. Bh3 Rc6 18. Be3 d4 19. Rfd1 Qe8 20. Rxd4 {½-½ (35) Sargissian,G (2682)-Dubov,D (2699) chess.com INT 2020}) 14... N5b6 15. Nxb6 Bxb6 16. Rd1 {aiming for a5.} Rc8 17. Qd2 {[#]} Bc4 $1 $36 {[%mdl 2048] Black is pushing.} 18. Qxb4 {[#] a5 is the strong threat.} Qf6 $1 19. Bf4 {Threatens to win with a5.} (19. Be3 Bxe3) 19... Ne5 {And now ...Ng4 would win.} 20. a5 $2 {[%mdl 8192] [#] Now White is beyond hope.} (20. Na5 $15 Bxf2+ 21. Kxf2) 20... Bxf2+ $1 $19 {[%mdl 512]} 21. Kxf2 {Black must now prevent Kg1.} (21. Kh1 Nd3) 21... g5 {[%mdl 64] Pin} 22. Nc1 $2 (22. Kg1 gxf4 23. gxf4) 22... gxf4 23. Kg1 f3 {Weighted Error Value: White=0.76/Black=0.02} 0-1

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "2.5"]
[White "Romanov, Evgeny"]
[Black "Shimanov, Aleksandr"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2599"]
[BlackElo "2597"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,59,25,10,10,16,7,12,5,5,8,22,39,28,23,20,-3,0,0,0,-8,7,-20,0,-18,-28,-70,-61,-85,-4,-10,-22,-9,0,-17,-21,-54,-35,-65,-52,-43,-29,-105,-97,-117,645,648,611,610,570,556]} 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nf6 5. c3 Bg4 6. Qb3 Qc7 7. Ne2 {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack.} Bxe2 8. Bxe2 e6 9. O-O $5 {[%mdl 4] The position is equal. A promising side line.} Bd6 10. g3 {[#]} h5 $146 ({Predecessor:} 10... Nc6 11. Nd2 O-O 12. Nf3 Ne4 13. Bd3 f5 14. Qc2 Rac8 15. Qe2 a6 16. c4 Qf7 {1-0 (29) Jumabayev,R (2654)-Adhiban,B (2659) Chess.com INT 2020}) 11. Na3 $1 {[%cal Ra3b5]} a6 12. c4 Nc6 13. Be3 h4 {[%cal Rh4g3]} 14. c5 Be7 15. Nc2 Qd7 16. Bf3 hxg3 17. hxg3 Ne4 18. Qd3 f5 19. b4 Kf7 (19... e5 $17 {And now ...f4! would win.} 20. Bg2 g5 21. dxe5 Nxe5) 20. Kg2 $11 Bf6 21. Rh1 Ne7 22. Be2 {Threatening f3.} g5 23. Bh5+ Kg7 $1 24. f3 {[#]} Nxg3 {[%mdl 64] Remove Defender, Decoy} 25. Kxg3 {Strongly threatening Kf2.} f4+ {[%mdl 64] Double Attack} 26. Kg2 (26. Bxf4 $1 $11 gxf4+ 27. Kf2) 26... fxe3 $17 27. Nxe3 Rh7 $2 {[%mdl 8192] [#]} (27... Qc7 $17 28. Rae1 Qf4) 28. Qxh7+ $3 $18 {[%mdl 512] White is clearly winning.} Kxh7 29. Be8+ $1 {[%mdl 64] Discovered Attack} Kg7 30. Bxd7 {Weighted Error Value: White=0.10/Black=0.28} 1-0

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "3.1"]
[White "Shimanov, Aleksandr"]
[Black "Khairullin, Ildar"]
[Result "0-1"]
[ECO "B47"]
[WhiteElo "2597"]
[BlackElo "2615"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,80,12,48,11,28,-16,-14,-44,-60,-46,-48,-107,-43,-90,-16,-23,-26,-149,-140,-170,-165,-163,-75,-86,-95,-647,-652,-771,-301,-758,-296,-270,-216,-425,-358,-377,-346,-353,-356,-315,-154,-156,-151,-272,-137,-154,-148,-294,-241,-278,-53,-46,-33,-233,-56,-949,-813,-881,-813,-816,-766,-764,-762,-993,-967,-1154,-1129,-1125,-1113,-1066,-784,-1081,-1055]} 1. e4 c5 2. Nc3 e6 3. Nge2 Nc6 4. d4 cxd4 5. Nxd4 Qc7 6. g4 {B47: Sicilian: Taimanov: 5 Nc3 Qc7 6 f4, 6 g3 and 6 Be2.} h6 $5 {[%mdl 4] [#] An interesting side line.} 7. h4 $146 ({Predecessor:} 7. Bg2 a6 8. Nxc6 dxc6 9. Qf3 e5 10. Bd2 Nf6 11. h3 Be6 12. Ne2 Nxe4 13. Qxe4 Bd5 {0-1 (33) Lindsoe,F (2001)-Rosberg,S (2246) Gibraltar 2008}) 7... Nf6 8. Rg1 {The position is equal.} Bb4 9. Ndb5 Qa5 10. f3 (10. Bf4 $15) 10... a6 (10... d5 $1 $17 {[%cal Rd5d4]} 11. g5 hxg5 12. hxg5 Nh5) 11. Nd6+ $15 Ke7 (11... Kf8 $1 $17 {Threatens to win with ...Qc5.} 12. Be3 Qc7) 12. Nc4 $1 $11 {[%cal Rc4a5]} (12. Bf4 Ne5 $17) 12... Qc7 $36 {[%mdl 2048] Hoping for ...b5. Black is pushing.} (12... Bxc3+ $2 13. bxc3 Qxc3+ 14. Kf2 $18) 13. Bd2 (13. Be3 $11) 13... b5 $1 $17 {[%cal Rb5c4]} 14. g5 hxg5 15. hxg5 bxc4 (15... Nh5 $19 16. Ne3 Qh2) 16. gxf6+ gxf6 17. Bxc4 $2 {[%mdl 8192]} (17. Be3 $17) 17... Bc5 $19 18. Rg2 Rb8 $2 (18... Rh2 19. Qe2 Rh1+ 20. Qf1 Rxf1+ 21. Bxf1 Nd4 {[%mdl 64] Double Attack}) 19. Na4 $2 {[#]} (19. Bf1) 19... Ba7 $2 (19... Rh2 $1 20. Qe2 (20. Bf4 Qxf4) 20... Rh1+ 21. Qf1 Rxf1+ 22. Bxf1 Nd4) 20. Bf1 Rh1 {aiming for ...d5.} 21. c3 $2 (21. c4) 21... d6 22. Qe2 Bd7 23. b3 Ne5 24. Nb2 a5 (24... Rh3 $19 {is more deadly.} 25. f4 Nf3+ 26. Kd1 Nxd2 27. Qxd2 Qxc3 28. Qxc3 Rxc3) 25. f4 $17 Ng6 26. Rh2 {[#]} (26. Nd3 $17) 26... Rxh2 (26... Nxf4 $1 $19 {[%mdl 512]} 27. Bxf4 Qxc3+ 28. Qd2 Rxf1+ $1 {[%mdl 64] Decoy} 29. Kxf1 Qf3+ {[%mdl 64] Double Attack} 30. Ke1 Bc5) 27. Qxh2 a4 {[%cal Ba5a4,Ba4a3][%mdl 32]} 28. b4 (28. Qe2 $17) 28... a3 29. Nc4 Bc6 $2 ({Black should try} 29... Rh8 $19 30. Qg2 Bb5 31. Nxa3 Nxf4 $1 {[%mdl 512]}) 30. f5 $15 Rh8 31. Qe2 {[#]} (31. Qg3 $1 $15 Ne5 32. Nxe5 dxe5 33. fxe6 Bxe4 34. O-O-O) 31... Ne5 $2 (31... d5 $1 $19 32. O-O-O (32. exd5 $2 Qg3+ 33. Kd1 Nf4 $19) 32... Rh2 $1) 32. fxe6 $2 {[%mdl 8192]} (32. Nxe5 $15 dxe5 33. fxe6) 32... Bb5 {[%cal Rb5c4] Black is clearly winning.} 33. Ne3 Bxe2 ({Stronger than} 33... Nd3+ {[#]} 34. Qxd3 $1 Bxd3 35. Nd5+ Kf8 36. Nxc7 $11) 34. Nd5+ Kd8 {...Qc4! is the strong threat.} 35. Nxc7 Bxf1 ({Weaker is} 35... Kxc7 36. Bxe2 fxe6 37. O-O-O $15) 36. Nd5 Bc4 {[%cal Rh8h1]} 37. e7+ Kd7 {[%cal Rh8h1]} 38. O-O-O Bxa2 39. Kc2 Bc4 40. Ra1 a2 {Weighted Error Value: White=1.08/Black=0.73} 0-1

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "3.2"]
[White "Matlakov, Maxim"]
[Black "Romanov, Evgeny"]
[Result "1/2-1/2"]
[ECO "E12"]
[WhiteElo "2688"]
[BlackElo "2599"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,64,60,58,77,43,50,25,47,48,46,50,44,0,0,0,0,-68,-75,-69,-71,-60,-62,-66,-66,-63,-65,-91,-79,-112,-62,-96,-95,-142,-150,-149,-136,-134,-132,-113,-13,-15,-18,-19,-18,-15,-15,-15,-15,-15,0,-15,-15,-15,-8]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 g6 5. Nc3 Bb7 6. Qc2 Bxf3 7. exf3 Bg7 {E12: Queen's Indian: Unusual White 4th moves, 4 a3, 4 Nc3 Bb7 5 a3 and 4 Nc3 Bb7 .} 8. d5 O-O 9. Be2 exd5 {White has an edge.} 10. cxd5 c6 {[#]} 11. Bg5 $146 ({Predecessor:} 11. O-O Nxd5 12. Nxd5 cxd5 13. Rd1 d4 14. Rb1 Nc6 15. b4 Re8 16. Bb2 Rc8 17. Qd2 {0-1 (28) Sanikidze,T (2507)-Shaposhnikov,E (2576) St Petersburg 2018}) 11... h6 12. Bh4 g5 13. Bg3 Nxd5 14. O-O ({White should play} 14. Nxd5 $11 cxd5 15. O-O) 14... Nxc3 $15 15. bxc3 d5 16. f4 gxf4 17. Bxf4 Qf6 18. Bd2 Nd7 {[%cal Bb8d7,Bd7e5,Be5c4][%mdl 32]} 19. Rad1 Rfe8 20. Rfe1 Re7 21. Bd3 Ne5 22. Be3 Rae8 23. h3 Nc4 24. Bxc4 dxc4 25. Rd4 Qg6 (25... b5 $17 {And now ...Qg6 would win.} 26. Rc1 h5) 26. Qxg6 $11 {The position is equal.} fxg6 27. Rxc4 c5 28. Rd1 Re4 29. Rxe4 Rxe4 30. Rd8+ Kf7 31. Rd7+ Re7 32. Rxe7+ Kxe7 {Weighted Error Value: White=0.19/Black=0.15} 1/2-1/2

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "3.3"]
[White "Goganov, Aleksey"]
[Black "Khalifman, Alexander"]
[Result "1/2-1/2"]
[WhiteElo "2575"]
[BlackElo "2608"]
[Annotator "TA"]
[PlyCount "31"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,16,16,28,35,9,8]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nge2 d5 6. a3 Ba5 7. dxc5 dxc4 {E42: Nimzo-Indian: Rubinstein: 4...c5 5 Ne2.} 8. Qxd8+ Bxd8 {[#] An uneventful encounter. Not enough moves} {Predecessor:} 9. Ng3 $146 Nbd7 10. Bxc4 Nxc5 11. b4 Ncd7 12. Bb2 Nb6 13. Be2 Bd7 14. Nce4 Bc6 15. Bf3 Nxe4 16. Bxe4 {½-½ (25) Jones,G (2648)-Stocek,J (2529) Bunratty 2014} 1/2-1/2

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "3.4"]
[White "Lintchevski, Daniil"]
[Black "Gorovykh, Eduard"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "2555"]
[BlackElo "2488"]
[Annotator "TA"]
[PlyCount "49"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,49,37,30,38,31,72,76,88,80,81,75,82,72,89,81,122,127,147,118,116,122,174,170,233,168,177,120,110,104,236,239,216,239,231,230,284,273]} 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Bd3 Be7 6. O-O O-O 7. Bg5 Bg4 8. Nbd2 c6 {C01: French: Exchange Variation.} 9. c3 Bh5 10. Re1 Nbd7 {White is better.} 11. Qb3 Nb6 12. a4 {[%cal Ba2a4,Ba4a5,Ba5a6][%mdl 32]} Qc7 13. a5 Nc8 14. Ne5 $36 {[%mdl 2048] [#] Black is under strong pressure.} Nd6 $146 ({Predecessor:} 14... Bg6 15. Nxg6 hxg6 16. Nf3 Nh5 17. Bd2 Nd6 18. Ne5 Rfe8 19. Re2 Bf8 20. Qa4 Re6 {1-0 (76) Baklan,V (2633)-Swiercz,D (2501) Lublin 2010}) 15. a6 {Strongly threatening axb7.} Rab8 16. Qa4 b5 17. Qc2 Rb6 (17... Rfe8 $16 {was worth a try.}) 18. Bxf6 $18 gxf6 19. Bxh7+ Kg7 {[#] aiming for ...Rh8.} 20. Nef3 (20. Re3 $1 $18 {[%cal Re3g3] Hoping for Rg3+.} Rh8 21. Rg3+ Kf8 22. Nef3) 20... Rh8 $16 21. Bd3 Ne4 {Black cannot hold the game after this.} (21... Bg4 $16 {was necessary.} 22. g3 Bd8) 22. Bxe4 $18 dxe4 23. Qxe4 Bd6 24. Nh4 {And now Nf5+ would win.} Bg6 25. Nxg6 {Weighted Error Value: White=0.12/Black=0.25} 1-0

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "3.5"]
[White "Levin, Evgeny A."]
[Black "Yevseev, Denis"]
[Result "1-0"]
[ECO "E51"]
[WhiteElo "2502"]
[BlackElo "2474"]
[Annotator "TA"]
[PlyCount "129"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,129,17,-3,22,0,0,-22,-18,-31,-13,-9,-3,-3,10,-6,58,12,26,5,5,7,22,38,46,18,8,-18,58,22,27,47,53,47,43,18,19,12,26,10,21,7,45,47,47,47,61,46,38,39,41,19,48,24,105,4,8,13,31,31,26,30,82,34,37,37,38,38,69,31,31,19,52,52,48,56,75,72,89,73,114,114,115,115,240,238,216,172,555,170,175,175,201,206,239,239,233,233,239,239,239,231,217,116,222,229,386,379,379,379,379,375,364,364,834,818,770,781,985,1047,928,766]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd2 Re8 {E51: Nimzo-Indian: Rubinstein: 4...0-0 5 Nf3 d5.} 7. a3 Bf8 8. Qc2 Nbd7 {[#] The position is equal.} 9. Bd3 $146 ({Predecessor:} 9. b4 c6 10. cxd5 exd5 11. Bd3 b6 12. O-O Bb7 13. Rab1 Bd6 14. e4 dxe4 15. Nxe4 {0-1 (35) Nestorovic,I (1995)-Zegarac,V (2295) Senta 2019}) 9... dxc4 10. Bxc4 c5 11. dxc5 Nxc5 12. e4 h6 (12... a6 $11) 13. b4 Ncd7 14. O-O a6 15. e5 Qc7 16. exf6 Qxc4 17. fxg7 Bxg7 18. Rac1 Nb6 ({Black should play} 18... b5 $11) 19. Be3 Nd5 20. Nxd5 Qxc2 21. Rxc2 exd5 22. Nd4 Re4 23. Rd1 Bg4 24. Rdd2 Rc8 25. h3 Bxd4 26. Rxc8+ Bxc8 27. Bxd4 $11 {[%mdl 4096] Endgame KRB-KRB} Re1+ 28. Kh2 Be6 29. Rd3 h5 30. Kg3 Kh7 31. Kh4 Bf5 (31... Kh6 $11 {remains equal.}) 32. Rd2 (32. Rf3 $16 Bg6 33. Kg5) 32... Kg6 33. f3 Rc1 34. g4 hxg4 35. hxg4 Be6 (35... Bb1 $11) 36. Kg3 f5 37. Re2 Rc6 38. gxf5+ Bxf5 39. Re7 (39. Kf4 $5 {[%cal Re2g2]} Bc8 40. Re7 $16) 39... Rc4 40. Be5 (40. Rg7+ {keeps more tension.} Kh6 41. Bf6 Rc6 42. Be5 Rg6+ 43. Kf4) 40... b5 41. Rg7+ Kh6 42. Rf7 Bc2 43. Rf6+ {White leaves nothing to chance now.} Kh7 44. Rd6 Bb3 45. Rxa6 Kg8 46. Rb6 Bc2 (46... Ba4 $16 {was necessary.} 47. f4 Kf7) 47. Rxb5 $18 d4 48. Rd5 d3 $2 (48... Rc3 {is tougher.} 49. Ra5 (49. Rxd4 Rxa3 50. Rc4 Bd1 $18) 49... Bd1) 49. Rd7 $2 (49. b5) 49... Kf8 50. f4 Ke8 51. Rd6 Re4 52. Kf3 Re1 53. Bc3 Bd1+ 54. Kg3 Re3+ 55. Kh4 Ke7 {[#]} 56. Be5 (56. Bd2 $1 $18 {[%mdl 512]}) 56... Bc2 {[#]} (56... Ba4 $16) 57. b5 $1 {[%cal Bb4b5,Bb5b6][%mdl 32]} Re2 $2 (57... Bd1 58. Rd4 Ke6 59. Rd6+ Ke7) 58. b6 {b7 would kill now.} Re1 59. Rd4 Rb1 {[#]} 60. Bc7 Ke6 61. Kg3 Rg1+ $2 (61... Kf5 62. Kf2 d2) 62. Kf2 {White is clearly winning.} Rb1 63. Ke3 Re1+ 64. Kd2 Rb1 65. a4 {Weighted Error Value: White=0.19/Black=0.32} 1-0

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "4.1"]
[White "Khairullin, Ildar"]
[Black "Yevseev, Denis"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2615"]
[BlackElo "2474"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,57,-5,0,-31,9,-30,-16,-19,11,2,61,41,67,52,51,58,52,39,116,31,125,114,163,185,162,169,224,202,308,263,300,210,217,195,231,172,286,263,246,239,448,210,318,337,714,692,741,762,1096,1050]} 1. e4 c6 2. d4 d5 3. f3 e6 4. Nc3 Bb4 5. Bd2 Ne7 {[#]} 6. h4 $146 {B12: Caro-Kann: Advance Variation.} ({Predecessor:} 6. Bd3 b6 7. a3 Bxc3 8. Bxc3 O-O 9. f4 c5 10. dxc5 bxc5 11. Qh5 Ba6 12. Nf3 d4 13. Bd2 {1-0 (65) Vachier Lagrave,M (2784)-Donchenko,A (2668) Wijk aan Zee 2021}) 6... Nd7 7. h5 h6 8. Qe2 {The position is equal.} O-O 9. O-O-O e5 (9... c5 $11) 10. dxe5 $14 d4 11. Nb1 Bxd2+ 12. Qxd2 c5 13. f4 Nc6 (13... f5 $1 $14) 14. Na3 (14. Nf3 $16) 14... Nb6 (14... a6 $1 $14) 15. Nf3 $16 f6 16. exf6 Qxf6 17. f5 Qf7 (17... Re8 $142) 18. Kb1 Nb4 (18... a5 {was called for.} 19. Qe2 Qf6) 19. b3 $18 Qe7 20. Rh4 a5 {intending ...a4.} 21. Nc4 Nd7 22. c3 dxc3 (22... Nc6 $142 23. a4 (23. cxd4 cxd4 24. Rf4 Nf6 $18) 23... Kh8) 23. Qxc3 a4 24. Nd6 axb3 $2 {[#]} (24... Nc6 25. bxa4 Nd4) 25. axb3 (25. Qxb3+ $142 Kh8 26. Qe6) 25... b6 (25... b5 $142 26. Bxb5 Ba6) 26. e5 Ba6 (26... Rd8) 27. Bxa6 {White is clearly winning.} Rxa6 28. Rxb4 Rfa8 29. Ra4 {Black did not feel at home in the position after the opening.  Weighted Error Value: White=0.30/Black=0.54} 1-0

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "4.2"]
[White "Gorovykh, Eduard"]
[Black "Levin, Evgeny A."]
[Result "0-1"]
[ECO "A07"]
[WhiteElo "2488"]
[BlackElo "2502"]
[Annotator "TA"]
[PlyCount "46"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,46,0,0,-14,-13,-21,-19,-83,-79,-63,-73,-108,-112,-98,-83,-139,-143,-143,-147,-131,-143,-306,-307,-324,-317,-331,-277,-272,-259,-278,-268,-307,-295,-561,-326,-554,-558]} 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 d5 6. Nbd2 Nc6 7. Rb1 {A07: Réti Opening: New York and Capablanca Systems.} a5 8. a3 e5 9. b4 (9. e4 $11) 9... axb4 $17 10. axb4 {[#]} e4 $5 $146 {[%mdl 8] New and interesting.} ({Predecessor:} 10... Re8 11. b5 Nb8 12. e4 dxe4 13. dxe4 Nbd7 14. Bb2 b6 15. Nc4 Bb7 16. Nfxe5 Nxe5 17. Qxd8 {1-0 (58) Shoker,S-Lepan,M (2063) Sautron 2000}) 11. Ne1 e3 12. fxe3 Ng4 13. Ndf3 (13. Nb3 $142) 13... Qe7 14. e4 dxe4 15. dxe4 Nxb4 16. h3 $2 {[#]} (16. Bg5 $17 Qc5+ 17. Kh1) 16... Na2 $1 $19 {[%cal Ra2c3] Strongly threatening ...Nc3.} 17. Rb3 {[#]} (17. Bg5 Qc5+) 17... Be6 18. Rd3 (18. Rxb7 Qc5+) 18... Qc5+ 19. e3 Nxc1 20. Qxc1 Ne5 21. Nxe5 Bxe5 ({Don't do} 21... Qxe5 22. Nf3 $19) 22. Rf3 $2 (22. Rd1) 22... Bc4 {Hoping for ...Ra1.} 23. Rd7 $2 (23. Qd2) 23... Bc3 {White did not feel at home in the position after the opening.  Weighted Error Value: White=0.66/Black=0.19} 0-1

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "4.3"]
[White "Khalifman, Alexander"]
[Black "Lintchevski, Daniil"]
[Result "1/2-1/2"]
[WhiteElo "2608"]
[BlackElo "2555"]
[Annotator "RC"]
[PlyCount "17"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "900+10"]

1. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:01]} 2. c4 {[%emt 0:00:00]} dxc4 {[%emt 0:00:03]} 3. e4 {[%emt 0:00:00]} e5 {[%emt 0:00:05]} 4. Nf3 {[%emt 0:00:00]} exd4 {[%emt 0:00:02]} 5. Bxc4 {[%emt 0:00:00]} Bb4+ {[%emt 0:00:03]} 6. Nbd2 {[%emt 0:00:02]} Nc6 {[%emt 0:00:02]} 7. O-O {[%emt 0:00:03]} Nf6 {[%emt 0:00:04]} 8. e5 {[%emt 0:00:03]} Nd5 {[%emt 0:00:05]} 9. Nb3 {[%emt 0:00:01]} 1/2-1/2

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "4.4"]
[White "Romanov, Evgeny"]
[Black "Goganov, Aleksey"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2599"]
[BlackElo "2575"]
[Annotator "TA"]
[PlyCount "117"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,117,0,4,0,-12,-17,0,0,2,-12,23,2,13,16,24,24,13,12,126,31,33,0,18,0,49,45,43,40,40,0,0,0,0,0,0,0,0,-11,0,6,64,51,75,63,62,64,61,59,49,41,60,50,64,52,62,60,34,0,0,0,0,-31,61,73,62,52,70,58,66,0,17,0,0,-58,-73,-163,-172,-227,-229,-370,-355,-331,-110,-127,-116,-180,-160,-179,-140,-266,-91,-137,-19,-201,-120,-181,0,0,0,-165,-155,-169,1150,1000,1960,1242,29975,29976,5620,5617]} 1. e4 c5 2. Nc3 d6 3. f4 g6 4. Nf3 Bg7 5. Bb5+ Bd7 6. Bc4 {B23: Closed Sicilian: Lines without g3.} e6 7. d3 Nc6 8. f5 {The position is equal.} Nf6 {[#]} 9. fxe6 $146 ({Predecessor:} 9. fxg6 hxg6 10. Bf4 Qb8 11. Nb5 Bf8 12. a4 a6 13. Nc3 Bg7 14. h3 Ng4 15. O-O {½-½ (75) Kadric,D (2585)-Alekseenko,K (2704) Caleta 2020}) 9... fxe6 10. Bf4 Qe7 11. Nb5 e5 $1 {[%cal Re5f4]} 12. Bg5 {Nc7+ is the strong threat.} O-O-O 13. O-O h6 {[#]} (13... Rdf8 $11 {keeps the balance.}) 14. Bxf6 (14. Nh4 $1 $16 {[%cal Rh4g6]} Be8 15. Bxf6 Bxf6 16. Nxg6 $1 {[%mdl 576] Decoy} Bxg6 17. Qg4+ {[%mdl 64] Double Attack} Kb8 18. Qxg6) 14... Bxf6 $14 15. a3 Kb8 16. b4 Nd4 17. Nc3 Qg7 18. Nd5 Rdf8 19. c3 Nxf3+ 20. Qxf3 {[%cal Rd5f6]} Bd8 21. Qe3 Rxf1+ 22. Rxf1 Rf8 23. Rb1 Bc6 24. bxc5 Bg5 (24... Bh4 $1 $11) 25. Qh3 Bd7 26. Qg3 dxc5 27. d4 Bf4 28. Nxf4 exf4 29. Qf2 cxd4 30. Bd5 (30. Qxd4 {seems wilder.} Qxd4+ 31. cxd4 Rc8 32. Ba6 Rc7 33. d5) 30... Bc8 31. cxd4 Qe7 32. e5 Qxa3 33. e6 Qd6 34. Qf3 {[%cal Rd5b7]} b6 35. Re1 Rd8 {[#]} (35... Re8 $15) 36. e7 $1 Re8 37. Qe4 {Black must now prevent Bf7.} Rxe7 38. Qxe7 {[%cal Re7d6]} Qxd5 {[%mdl 4096] Endgame KQR-KQB} 39. Qg7 ({Better is} 39. Qf6 $1 $14) 39... g5 40. Rc1 {White threatens Qc7+ and mate.} Bd7 41. Qf6 (41. Qe5+ $11 Qxe5 42. dxe5) 41... Kb7 $15 42. h3 (42. Qe5 $17 Qxe5 43. dxe5) 42... a5 $1 $19 43. Rb1 (43. Rd1 $142) 43... Bc6 {[%csl Gc6][%cal Rd5g2]} 44. Qe7+ (44. Rb2 {only move.}) 44... Ka6 {[%csl Gc6][%cal Rd5g2]} 45. Qe2+ Ka7 $2 (45... b5 $19 {is more deadly.} 46. Qd2 b4 47. Qe2+ Kb6) 46. Qb2 $17 b5 47. Re1 (47. Rc1 $17) 47... Kb6 $19 48. Re5 Qc4 49. Rc5 (49. h4 $17) 49... Qd3 $2 (49... Qb4 $1 $19 {[%cal Rb4b2]} 50. Qf2 a4) 50. Re5 $17 {intending Qf2.} a4 (50... Bd7 $1 $17 {Strongly threatening ...b4.} 51. Re7 Bc6) 51. Qf2 $2 {[#]} (51. Qb4 $1 $11 {and White stays safe.} Qd1+ 52. Kh2) 51... Ka5 $1 $19 {Hoping for ...a3.} 52. Qe1+ Kb6 $2 (52... Ka6 $19 53. Qb4 Qd1+ 54. Kf2 Qc2+ 55. Ke1 Qc1+ 56. Kf2 a3) 53. Qf2 $36 {[%mdl 2048] Threatens to win with d5+. White is more active.} Ka5 $2 (53... Kb7 $11 54. d5 Bd7) 54. Qe1+ $1 $19 Ka6 55. Qb4 {aiming for Qd6.} Qb3 $4 {[%mdl 8192] [#]} (55... Qg3 $19 56. Qd2 f3) 56. Qd6 $1 $18 {[%cal Rd6c6][%mdl 64] Double Attack} Qc2 57. d5 {[%mdl 64] Pin} f3 58. Qxc6+ Qxc6 59. dxc6 {Weighted Error Value: White=0.24/Black=0.43} 1-0

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "4.5"]
[White "Shimanov, Aleksandr"]
[Black "Matlakov, Maxim"]
[Result "1/2-1/2"]
[ECO "A11"]
[WhiteElo "2597"]
[BlackElo "2688"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,83,11,1,0,1,7,0,0,0,0,0,0,0,15,15,20,16,21,8,12,0,23,25,29,16,23,0,24,20,19,23,46,20,58,11,14,12,23,0,49,0,38,30,31,16,29,-10,8,14,13,13,0,4,52,13,17,16,27,27,41,10,18,10,14,14,15,4,26,0]} 1. Nf3 d5 2. g3 Bg4 3. Bg2 c6 4. c4 e6 5. cxd5 Bxf3 6. Bxf3 cxd5 7. O-O Nc6 8. d4 Nf6 9. Nc3 Be7 {A11: English Opening: 1...c6.} 10. e3 O-O 11. Bd2 Na5 {The position is equal.} 12. b3 Rc8 {[#]} 13. Qe2 $146 ({Predecessor:} 13. Qb1 Nd7 14. Qb2 a6 15. Rfc1 b5 16. Ne2 Qb6 17. Nf4 Nb7 18. Be2 a5 19. a3 {½-½ (81) Rodshtein,M (2678)-Geske,J (2386) Bilbao 2014}) 13... Nc6 14. a3 Ne8 15. Rfc1 Qd7 16. Na4 {[%cal Bc3a4,Ba4b2,Bb2d3][%mdl 32]} b6 17. Nb2 Nd6 18. Nd3 f5 19. Be1 Rc7 20. Qb2 Rfc8 21. Bg2 Bf6 22. Rc2 g5 23. Rac1 h5 24. h3 Ne4 25. f3 Nd6 26. Bf2 Qg7 27. Kf1 a5 28. a4 (28. Ne5 $5 Nd8 29. Rxc7 Rxc7 30. Rxc7 Qxc7 31. a4 $14) 28... Kh7 29. Qb1 Kh6 30. Rc3 Qd7 31. R1c2 Ne7 32. Qc1 {[%cal Rc3c7]} Rxc3 33. Rxc3 Rxc3 34. Qxc3 Qc6 (34... Ng6 {with more complications.} 35. Qc2 Kg7 36. Qc1 Nf7 37. Be1 Nd6) 35. Be1 (35. Qxc6 {keeps more tension.} Nxc6 36. h4 g4 37. Nf4 Nd8 38. Bh1) 35... Qxc3 36. Bxc3 Nc6 37. Ke2 Kg7 38. Kd2 Kf7 39. Bb2 Be7 40. Ke2 Bf6 41. Ba3 Be7 42. Bb2 {Weighted Error Value: White=0.11/Black=0.10} 1/2-1/2

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "5.1"]
[White "Matlakov, Maxim"]
[Black "Khairullin, Ildar"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2688"]
[BlackElo "2615"]
[Annotator "TA"]
[PlyCount "45"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,45,16,21,14,17,0,0,-22,-5,-11,-19,-5,-8,-9,0,-29,-14,-54,-41,-66,-39,-37,-20,-44,-37,-35,-29,-29,-31,-37,-18,-25,-11,-28,-8,-12]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Nbd2 d6 6. c3 O-O 7. h3 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} a5 8. Nf1 Be6 9. Bb5 {[#]} Ne7 $146 ({Predecessor:} 9... h6 10. Ng3 Bd7 11. O-O Re8 12. a4 d5 13. exd5 Nxd5 14. Re1 Bd6 15. Bc4 Nf4 16. Bxf4 exf4 {1-0 (37) Mamedov,R (2654)-Vasli,A (2384) Tornelo INT 2021}) 10. Ng3 Ng6 11. O-O c6 12. Ba4 d5 13. exd5 Bxd5 14. Re1 Re8 15. Ng5 Qb6 16. Qc2 Rad8 17. Bb3 h6 {[#] Threatens to win with ...Bxb3.} 18. N5e4 Nxe4 19. dxe4 Bxb3 20. axb3 Qc7 21. Nf5 b6 22. g3 Ne7 23. Nh4 {Weighted Error Value: White=0.11/Black=0.09} 1/2-1/2

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "5.2"]
[White "Goganov, Aleksey"]
[Black "Shimanov, Aleksandr"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2575"]
[BlackElo "2597"]
[Annotator "TA"]
[PlyCount "34"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,34,22,22,28,31,27,25,22,7,13,10,37,36,151,160,152,17,26,-7,-5,-10,-31,-86,-77,-238,-244]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nd2 e6 5. Nb3 Nd7 6. Nf3 h6 {B12: Caro-Kann: Advance Variation.} 7. Be2 Ne7 8. O-O g5 {White has an edge.} 9. Bd2 a5 10. a4 Qc7 11. Rc1 {[#] is now more promising than 11.Ne1.} f6 $1 $146 {[%mdl 8] An important novelty.} (11... Bg7 $14) ({Predecessor:} 11... Bg7 12. c4 O-O 13. h4 g4 14. Ne1 f6 15. exf6 Nxf6 16. g3 dxc4 17. Bxc4 Ned5 {1-0 (58) So,W (2767)-Artemiev,V (2746) chess.com INT 2019}) 12. exf6 $16 Ng6 13. Qe1 (13. Ne5 $16 Ngxe5 14. dxe5) 13... Bd6 $1 $11 14. h3 O-O 15. c4 Nxf6 {[%cal Bd7f6,Bf6e4,Be4d2][%mdl 32]} 16. Nxa5 (16. c5 $15 Bf4 17. Bd1) 16... Ne4 $17 17. c5 $2 {[#]} (17. Nb3 $17 {was necessary.}) 17... Nxd2 {Black used his chance.  Weighted Error Value: White=0.37/Black=0.18} 0-1

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "5.3"]
[White "Lintchevski, Daniil"]
[Black "Romanov, Evgeny"]
[Result "0-1"]
[ECO "C45"]
[WhiteElo "2555"]
[BlackElo "2599"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,74,11,14,12,7,13,8,5,1,16,18,5,0,37,24,45,0,0,-66,-60,-100,-104,-244,-239,-242,-254,-275,-122,-125,-129,-125,-125,-126,-132,-131,-131,-125,-125,-125,-125,-132,-125,-201,-193,-171,-178,-157,-156,-233,-210,-212,-170,-231,-236,-236,-236,-241,-212,-1041,-870,-1049,-825,-1122,-1079,-1269,-1269]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nxc6 bxc6 6. Bd3 Qh4 {[%csl Gc5][%cal Rh4f2] C45: Scotch Game.} 7. Qe2 Nf6 8. Be3 Bb6 {The position is equal.} 9. Nd2 O-O 10. h3 Re8 11. O-O-O {[#]} Qh5 $146 ({Predecessor:} 11... Rb8 12. Nf3 Qh5 13. e5 Bxe3+ 14. Qxe3 Nd5 15. Qd2 d6 16. g4 Qh6 17. Qxh6 gxh6 18. exd6 cxd6 {½-½ (32) Van der Wiel,J (2501)-Motwani,P (2507) Netherlands 2002}) 12. g4 Qa5 13. g5 Bxe3 14. fxe3 (14. Qxe3 $11 Nd5 {[%mdl 64] Pin} 15. Qf3) 14... Qxg5 $15 15. Nf3 Qh6 16. h4 (16. e5 $17 {was worth a try.} Nd5 17. Rde1) 16... d5 $1 $19 (16... Nxe4 17. Ng5 $17) 17. e5 {[#]} Bg4 $1 18. exf6 {Hoping for Rhg1.} (18. Qf2 Bxf3) 18... Bxf3 (18... Rxe3 $19 {has better winning chances.} 19. Qd2 (19. Bxh7+ $2 Kh8 $19) 19... Bxf3) 19. Qxf3 {Black must now prevent Rh3.} Rxe3 20. Bxh7+ Kxh7 21. Qf5+ {[#]} g6 $1 {[%cal Rg6f5]} 22. Qg5 Re5 23. Qxh6+ Kxh6 $17 {[%mdl 4096] Endgame KRR-KRR} 24. Rd4 c5 25. Ra4 a5 26. a3 (26. Rf1 $17) 26... c4 $19 27. b4 cxb3 28. cxb3 c5 29. Rh2 (29. Rf1 $17) 29... Kh5 30. Rc2 d4 31. b4 (31. Kd2 $142) 31... cxb4 ({Weaker is} 31... Kxh4 32. bxc5 Rd5 33. Kd2 $15) 32. axb4 {[#]} Rb5 $1 ({Less strong is} 32... Kxh4 33. Rc7 $15) 33. Rc7 Rxb4 34. Rxb4 (34. Ra2) 34... axb4 {Black is clearly winning.} 35. Rxf7 Kxh4 36. Kd2 Kg5 37. Kd3 Rb8 {Weighted Error Value: White=0.68/Black=0.09} 0-1

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "5.4"]
[White "Levin, Evgeny A."]
[Black "Khalifman, Alexander"]
[Result "1-0"]
[ECO "E51"]
[WhiteElo "2502"]
[BlackElo "2608"]
[Annotator "TA"]
[PlyCount "125"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,125,31,23,79,89,77,83,145,143,145,151,158,144,146,134,128,88,94,104,99,109,107,101,108,104,113,122,117,97,99,99,150,161,155,156,160,159,148,134,162,154,167,156,171,151,172,174,183,183,196,196,196,196,196,196,196,196,196,196,220,196,319,316,277,196,179,173,423,364,430,420,420,419,525,507,479,468,640,637,658,656,644,635,608,554,956,912,829,813,1636,1497,29980,29981,29981,29982,29982,29966,29970,29971,29976,29977,29977,29972,29976,29977,29981,29982]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd2 d5 7. a3 Bxc3 8. Bxc3 Ne4 9. Rc1 Nxc3 10. Rxc3 cxd4 11. Nxd4 b6 {E51: Nimzo-Indian: Rubinstein: 4...0-0 5 Nf3 d5.} (11... e5 $11 {keeps the balance.} 12. Nb3 Be6) 12. cxd5 $16 Qxd5 13. Be2 {[#] Hoping for Bf3.} e5 $146 ({Better is} 13... Bb7) ({Predecessor:} 13... Bb7 14. Bf3 Qd7 15. O-O e5 16. Nf5 Qxd1 17. Rxd1 Bxf3 18. Ne7+ Kh8 19. gxf3 Na6 {1-0 (28) Artemiev,V (2716)-Abrahamyan,T (2358) chess.com INT 2020}) 14. Nb5 Qxd1+ 15. Bxd1 {Strongly threatening Bf3.} a5 16. Bf3 Ra6 17. O-O Bd7 18. Nc7 Ra7 19. Nd5 b5 20. Rfc1 Rd8 21. Nb6 Be6 22. Rc5 b4 23. Rxe5 Nd7 {[#]} 24. Rd1 $1 Kf8 (24... g6 25. h3) 25. Rb5 Ke7 ({Black should try} 25... Ke8) 26. Nd5+ ({Don't take} 26. axb4 $6 Nxb6 27. Rxd8 (27. Rxb6 axb4 28. Rxd8 Kxd8 $16) (27. bxa5 Rxd1+ 28. Bxd1 Nc4 $17) 27... Kxd8 $16) 26... Bxd5 27. Rdxd5 bxa3 28. bxa3 Rc8 29. h3 Rc3 30. a4 Rc4 31. Rd4 Rxd4 32. exd4 {[%mdl 4096] Endgame KRB-KRN} Nf6 33. Kf1 Ne8 34. Ke2 Nd6 35. Rc5 Kd7 36. Kd3 Ra6 37. Bd5 h6 38. f4 Ra7 39. Bc6+ Ke7 40. g4 Ra6 (40... Kd8 $142 41. Bd5 g6) 41. d5 $18 Kd8 42. Bb5 Ra7 43. Kd4 Re7 $2 (43... Rb7 {was worth a try.} 44. h4 f6) 44. Bd3 Nb7 45. Rc6 Re1 46. Ba6 Rb1 47. Bxb7 Rxb7 {KR-KR} 48. Ra6 Rb4+ 49. Ke5 Rxa4 50. Kd6 {[%cal Ra6a8]} Kc8 51. f5 Kb7 52. Rc6 h5 53. Rc7+ Kb6 54. g5 f6 55. g6 Rf4 56. Rxg7 {White mates.} Rxf5 57. Rg8 Kb7 58. Ke6 Re5+ 59. Kxf6 Rxd5 60. Re8 Rd6+ 61. Kg5 Rd3 62. h4 Rg3+ 63. Kh6 {Weighted Error Value: White=0.06/Black=0.36} 1-0

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "5.5"]
[White "Yevseev, Denis"]
[Black "Gorovykh, Eduard"]
[Result "1/2-1/2"]
[ECO "E94"]
[WhiteElo "2474"]
[BlackElo "2488"]
[Annotator "TA"]
[PlyCount "40"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,40,78,91,74,92,82,97,99,95,96,95,92,118,41,31,0,0,-10,93,0,16,-3,0]} 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Be2 e5 7. Be3 c6 8. O-O Nbd7 9. d5 c5 10. Ne1 a6 11. a3 {E94: King's Indian: Classical: 6 Be2 e5 7 0-0: Various Black 7th moves.} Rb8 {[#]} 12. Qc2 $146 ({Predecessor:} 12. b4 b6 13. Rb1 Qc7 14. Qd2 Re8 15. Nd3 Nf8 16. f3 Bd7 17. Rb2 Rec8 18. Rfb1 Be8 {1-0 (48) Tratar,M (2290)-Kocevar,M Ljubljana 1993}) 12... Nh5 13. Bxh5 {White is better.} gxh5 14. b4 b5 15. cxb5 axb5 16. Nd3 (16. Nf3 $16) 16... f5 $1 $14 17. exf5 {[%cal Rb4c5]} c4 $36 {[%mdl 2048] Black has some pressure.} 18. Nb2 Nb6 (18... e4 $1 $11 {remains equal.}) 19. a4 (19. Nxb5 $16 {With the idea f6.} Bxf5 20. Qd2) 19... Bxf5 $11 20. Qe2 bxa4 {Weighted Error Value: White=0.29/Black=0.25} 1/2-1/2

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "6.1"]
[White "Khairullin, Ildar"]
[Black "Gorovykh, Eduard"]
[Result "1-0"]
[ECO "C04"]
[WhiteElo "2615"]
[BlackElo "2488"]
[Annotator "TA"]
[PlyCount "109"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,109,44,75,68,116,112,96,118,129,129,156,103,147,150,315,129,141,142,155,94,112,102,114,89,116,72,70,66,121,120,119,72,124,82,143,120,129,122,153,145,223,193,309,233,336,131,222,0,320,143,1141,1141,1120,1139,1126,1098,983,383,381,368,369,369,359,286,293,289,318,318,319,313,318,286,392,376,364,316,481,459,523,508,625,615,723,697,853,852,836,827,948,897,1035,1058,1246,1216,1412,1308,2995,2877]} 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 Be7 {[%cal Rf6e5]} 8. exf6 {C04: French Tarrasch: 3...Nc6.} Bxf6 9. O-O O-O 10. Re1 {White is better.} Re8 11. Bf4 Ncb8 12. Ne5 (12. Re3 $142) 12... c6 13. Bd3 {[#]} Nxe5 $146 (13... g6 $16 14. Ng4 Qe7) ({Predecessor:} 13... Nf8 14. Qh5 Qe7 15. Re3 Bxe5 16. Bxe5 Nbd7 17. Bd6 Nf6 18. Bxe7 Nxh5 19. Bd6 Nf6 {1-0 (34) Grigoriants,S (2515)-Ubushiev,A Kazan 2001}) 14. Bxe5 (14. dxe5 $18 Bg5 {[#]} 15. Qh5 $1 Bxf4 16. Bxh7+ Kf8 17. Bg6) 14... Bxe5 15. Rxe5 {Black must now prevent Qh5.} Nd7 16. Re3 (16. Qh5 $142 Nf6 17. Qh4) 16... b6 17. Qh5 Nf6 18. Qh4 Qe7 19. Rh3 {[%cal Rd3h7]} g6 20. Re1 Bd7 ({Better is} 20... Nh5 $14) 21. Rg3 $16 Qg7 22. c3 Rac8 (22... Rf8 $142) 23. Nd2 Rf8 (23... Nh5 $142) 24. Re5 c5 25. Nf3 cxd4 26. Qxd4 Kh8 (26... Ne4 $16) 27. Qe3 $18 Rce8 (27... Ba4 $142 28. Rxe6 Rce8 29. Rxe8 Bxe8) 28. h4 Qe7 (28... d4 {was necessary.} 29. Nxd4 Nd5) 29. Qh6 $2 (29. Reg5 $18 {has better winning chances.}) 29... Ng8 (29... Qg7 $16 {was worth a try.} 30. Qe3 (30. Rxg6 Qxh6 31. Rxh6 Kg7 $11) 30... Qe7) 30. Qe3 (30. Qd2 $142) 30... Nf6 31. Ng5 (31. Reg5 $18 {is more deadly.}) 31... Nh5 $2 {[%mdl 8192] [#]} (31... Qc5 $16) 32. Nxh7 $1 {[%mdl 512] White threatens Rxh5 and mate.} Nxg3 33. Nxf8 Rxf8 34. Qh6+ Kg8 35. Qxg6+ $2 (35. Rg5 Nf5 36. Bxf5 {[%mdl 64] Pin} Qxg5 37. hxg5 Rxf5 38. Qxg6+ Kf8 39. Qh6+ Ke7 40. Qh7+ Kd6 41. g6) 35... Qg7 36. Qxg7+ ({Much less strong is} 36. Qxg3 Qxg3 37. fxg3 Kf7 $18) (36. fxg3 Qxg6 37. Bxg6 Kg7 $18) 36... Kxg7 37. Rg5+ ({Less strong is} 37. fxg3 Kf6 $18) 37... Kf6 38. Rxg3 {[%mdl 4096] Endgame KRB-KRB} ({Weaker is} 38. fxg3 Rh8 $18) 38... Rh8 39. Rf3+ Ke7 40. g3 e5 41. Re3 Kd6 42. Bg6 d4 43. Rd3 Kd5 44. Rd2 Rc8 (44... Bg4 $142 45. cxd4 exd4) 45. Kg2 {White is clearly winning.} Be6 46. f3 Rg8 47. h5 b5 48. g4 b4 49. cxd4 exd4 50. Kg3 a5 51. b3 Rd8 52. h6 Ke5 53. g5 Rg8 54. f4+ Kd5 55. Bd3 {Weighted Error Value: White=0.43/Black=0.44} 1-0

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "6.2"]
[White "Khalifman, Alexander"]
[Black "Yevseev, Denis"]
[Result "1/2-1/2"]
[WhiteElo "2608"]
[BlackElo "2474"]
[Annotator "NA RC"]
[PlyCount "13"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "900+10"]

{[%evp 10,10,8]} 1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:12]} 2. c4 {[%emt 0:00:00]} c6 {[%emt 0:00:10]} 3. Nf3 {[%emt 0:00:00]} d5 {[%emt 0:00:03]} 4. cxd5 {[%emt 0:00:00]} cxd5 {[%emt 0:00:04]} 5. Nc3 {[%emt 0:00:00]} Nc6 $11 {[%emt 0:00:08]} 6. Bf4 {[%emt 0:00:00]} a6 {[%emt 0:00:08]} 7. e3 {[%emt 0:00:04]} 1/2-1/2

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "6.3"]
[White "Romanov, Evgeny"]
[Black "Levin, Evgeny A."]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "2599"]
[BlackElo "2502"]
[Annotator "TA"]
[PlyCount "49"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,49,0,-4,0,0,-9,-4,-10,-24,-31,-69,-52,-61,263,235,514,514,524,514,1110,1124,1235,1218,1158,612,617,616,612,607,566,559,541,544,544,543]} 1. Nf3 Nf6 2. b3 b6 3. Bb2 e6 4. e3 Bb7 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. Ne5 c5 9. Nd2 Nc6 {[%cal Bb8c6,Bc6e7,Be7f5][%mdl 32] D05: Colle System with ...e6.} 10. f4 Rc8 11. a3 Ne7 {The position is equal.} 12. Qf3 $1 {The main line 12.Qf3 scores better than 12.Qe2.} Nf5 13. Qh3 $5 {[%mdl 4] [#] An interesting side line.} Ne4 $146 ({Predecessor:} 13... cxd4 14. exd4 Ne4 15. Rad1 f6 16. Ng4 Qc7 17. Qf3 Nc3 18. Bxc3 Qxc3 19. Bxf5 exf5 {0-1 (37) Hoang,T (2423)-Medvegy,Z (2543) Ajka 2018}) 14. Rad1 f6 $2 {[%mdl 8192] [#] Loses the game.} (14... cxd4 $15 {stays ahead.} 15. exd4 b5) 15. Nxe4 $18 Bxe5 $2 (15... Be7 16. Ng3 fxe5) 16. dxe5 {White is clearly winning.} c4 17. exf6 dxe4 (17... gxf6 $142 18. Qg4+ Ng7 19. Nxf6+ {[%mdl 64] Discovered Attack} Rxf6 20. bxc4 Qe7 21. cxd5 exd5) 18. Bxc4 {[%mdl 64] [#] Discovered Attack} Qe8 19. Qxf5 Rxc4 20. Qg4 {[%csl Gb2,Gf6][%cal Rg4g7]} Rc7 21. Be5 Rd7 22. Rxd7 Qxd7 23. Rd1 Qf7 24. Qxg7+ Qxg7 25. fxg7 {Weighted Error Value: White=0.28/Black=0.70} 1-0

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "6.4"]
[White "Shimanov, Aleksandr"]
[Black "Lintchevski, Daniil"]
[Result "1/2-1/2"]
[ECO "B25"]
[WhiteElo "2597"]
[BlackElo "2555"]
[Annotator "TA"]
[PlyCount "179"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,178,-4,-2,-9,0,-5,0,-4,-5,-21,-6,-21,-20,-24,-10,-12,-8,-7,0,0,0,-9,8,20,42,-10,-11,-7,7,9,15,13,17,-25,9,9,9,0,0,0,5,8,10,0,0,0,0,0,12,0,0,0,9,14,8,0,0,0,68,28,34,63,79,79,79,79,75,77,82,82,73,51,51,51,51,39,52,8,8,8,8,8,8,8,8,0,8,8,8,8,8,8,8,8,8,0,8,8,8,8,8,8,8,8,8,8,12,1,12,12,12,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 Nf6 3. d3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. Nc3 d6 8. Nh4 Nd4 9. f4 Rb8 10. a4 {B25: Closed Sicilian: 3 g3, lines without early Be3.} a6 11. f5 b5 12. axb5 axb5 {[#]} 13. Kh1 $146 ({Predecessor:} 13. fxg6 fxg6 14. Bg5 Bg4 15. Qd2 b4 16. Nd1 Nh5 17. Rxf8+ Qxf8 18. Ra7 Ne2+ 19. Kh1 Nhxg3+ 20. hxg3 Nxg3+ {0-1 (26) Danielsen,H (2488)-Jones,G (2645) Reykjavik 2016}) 13... Bb7 14. g4 Nd7 15. g5 Ne5 16. Ne2 d5 17. Nxd4 cxd4 18. Qe2 dxe4 19. Bxe4 Qb6 20. Bf4 {Black must now prevent Bxb7.} Rbc8 21. Bxe5 (21. Bg3 $14) 21... Bxe5 $11 22. Rf2 e6 23. fxe6 Bxe4+ 24. Qxe4 Qxe6 25. Re1 Bg7 (25... Qd7 {with more complications.} 26. Nf3 Bg7 27. Qe7 Qd5 28. Kg2 Qa8) 26. Qxe6 fxe6 27. Ree2 Rxf2 28. Rxf2 {[%mdl 4096] Endgame KRB-KRN} Rc5 29. Nf3 Kf7 30. Kg2 Ke7 31. h4 Rc6 32. Kg3 Kd6 33. Nd2 Ke7 34. Nf3 Kd6 35. Kg4 Rc7 36. Nd2 Ke7 37. Ne4 Rc8 (37... Ra7 $11) 38. h5 (38. Rf7+ $5 Kxf7 39. Nd6+ {[%mdl 64] Double Attack} Ke7 40. Nxc8+ Kd7 41. Na7 $14) 38... gxh5+ 39. Kxh5 Ra8 40. g6 hxg6+ 41. Kxg6 Be5 42. Rf7+ Ke8 43. Rb7 Ra1 44. Nf6+ (44. Kh5 {feels hotter.} Rg1 45. Kh4 Bf4 46. Rxb5 Kd7 47. Rb4) 44... Bxf6 45. Kxf6 $14 {KR-KR} Re1 46. Rxb5 {[#] Threatens to win with Rb4.} Kd7 47. Rb4 e5 {The position is equal.} 48. Kf5 Kd6 49. Rb6+ Kd5 50. Rb5+ Kd6 51. Rb6+ Kd5 52. Rb8 Rf1+ 53. Kg4 Rf7 54. Rd8+ Ke6 55. Re8+ Kd5 56. Rd8+ Ke6 57. Rc8 Kd5 58. Kg3 Rb7 59. b3 Rf7 $1 60. Kg2 (60. Kg4 {is interesting.} Rf4+ 61. Kg5 Kd6 62. b4 Rf1 63. Rd8+) 60... Rf6 61. Rd8+ Ke6 62. Kg1 Rf7 63. Rc8 Kd5 64. Rd8+ (64. b4 {seems wilder.} Rb7 65. Rc5+ Kd6 66. Rc4 Ra7 67. Kf2) 64... Ke6 65. Rg8 Rc7 66. Rg2 Rc3 67. Kf1 e4 $1 68. dxe4 Ke5 69. Ke1 d3 $1 {[%cal Rd3c2]} 70. cxd3 Rxd3 71. Rb2 (71. b4 {seems wilder.} Kxe4 72. Ke2 Rd6 73. Rg1 Rd5 74. Rg2) 71... Kxe4 72. b4 Rd6 73. Re2+ Kd5 74. Rd2+ Kc6 75. Rxd6+ Kxd6 $11 {KP-K} 76. Kd2 Kc6 77. Kc3 Kb5 78. Kb3 (78. Kb2 {is more complex.} Kb6 79. Kc2 Ka6 80. Kd2 Kb7 81. Ke2) 78... Kb6 79. Kc4 Kc6 80. b5+ Kb6 81. Kb4 (81. Kb3 {looks sharper.} Kc7 82. b6+ Kb7 83. Kb4 Kb8 84. Kc4) 81... Kb7 82. Ka5 Ka7 83. Ka4 Kb6 84. Kb4 Kb7 85. Kc5 (85. b6 {seems wilder.} Kb8 86. Kc4 Kb7 87. Kc5 Kb8 88. Kb5) 85... Kc7 86. b6+ Kb7 87. Kb5 Kb8 88. Kc6 {[#] Threatening mate with b7.} Kc8 89. b7+ Kb8 90. Kb6 {Weighted Error Value: White=0.07/Black=0.06} 1/2-1/2

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "6.5"]
[White "Matlakov, Maxim"]
[Black "Goganov, Aleksey"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "2688"]
[BlackElo "2575"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,95,26,9,16,11,17,19,16,17,25,12,22,16,35,25,22,22,23,18,51,54,53,57,65,52,52,57,51,68,54,67,38,1,21,0,22,0,25,22,64,56,78,39,67,35,35,33,35,52,66,25,56,60,86,86,279,274,250,260,235,245,238,245,262,214,254,241,265,257,507,514,487,383,356,210,409,196,1029,573,993,888]} 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. cxd5 cxd5 5. Bf4 Nc6 6. e3 Bf5 7. Qb3 Na5 8. Qa4+ Bd7 9. Bb5 Nc6 {D10: Slav Defence: 3 cxd5 (without early Nf3) and 3 Nc3.} 10. Qd1 e6 11. Nf3 Be7 {The position is equal.} 12. h3 O-O 13. Bd3 Rc8 14. O-O {[#]} Na5 $146 ({Predecessor:} 14... Qb6 15. Rb1 Rfd8 16. a3 Na5 17. Qe2 Nc4 18. Bg5 h6 19. Bh4 Qd6 20. Bg3 Qb6 {½-½ (52) Dos Santos,M (2436)-Bochev,K (2415) ICCF email 2016}) 15. Ne5 Be8 16. Rc1 Nd7 17. Nf3 f5 18. Nb5 Rxc1 19. Qxc1 {[#] Strongly threatening Bc7.} Nc6 20. Nd6 Bh5 21. Nxb7 Qb6 22. Nc5 {[%cal Rc5d7]} Bxc5 23. dxc5 Nxc5 24. Bb1 Bxf3 25. gxf3 {Bd6 is the strong threat.} (25. Bd6 {seems wilder.} Rf6 26. gxf3 Nd7 27. f4 d4 28. e4) 25... Ne7 26. b4 Na6 (26... Qxb4 $2 27. Bd6 $18) 27. a3 Rc8 28. Qb2 Ng6 29. Bg3 Nb8 $1 30. h4 $36 {[%mdl 2048] White fights for an advantage.} h5 31. Rc1 Rxc1+ 32. Qxc1 {aiming for Qc8+.} Nc6 33. Bd3 d4 34. f4 Nge7 35. Qc4 Nd5 $2 {[#] Black cannot hold the game after this.} (35... Kf7 $16 {is a better defense.}) 36. e4 $1 $18 {[%cal Re4d5]} fxe4 37. Bxe4 Nce7 38. f5 Kf7 39. Be5 Qc6 40. fxe6+ ({Resist} 40. Qxd4 exf5 41. Bf3 Qe6 $18) 40... Kxe6 41. Qxd4 Qc1+ 42. Kh2 g5 $2 (42... Qxa3 {might work better.} 43. Bg3 Qb3 44. Qe5+ {[%mdl 64] Double Attack} (44. Qxg7 Nf6 $16) (44. Qxa7 Qxb4 45. Bxd5+ Nxd5 $16) 44... Kf7 45. Qxh5+ Kf8 46. Qh8+ Kf7 47. Qh5+ Kf8 48. Qh8+ Kf7 49. Qh5+) 43. Bb8 Nf6 44. Bf3 gxh4 45. b5 ({Weaker is} 45. Qxa7 Ng4+ 46. Bxg4+ hxg4 $16) (45. Qe5+ $142 Kf7 46. Bxh5+ (46. Bd6 Ng6 $16) 46... Nxh5 47. Qxh5+ {[%mdl 64] Double Attack} Ng6 48. Qd5+ Kg7 49. Qd4+ Kg8 50. Qd5+ (50. Bxa7 Qc7+ 51. Kg1 Qc1+ 52. Kg2 Qc6+ 53. f3 h3+ 54. Kg3 h2 $18) 50... Kg7 51. Qd4+ Kg8 52. Qd5+ Kg7) 45... Qc8 $2 (45... Qxa3 {was worth a try.} 46. Qe5+ Kf7 47. Bxh5+ Nxh5) 46. Qxa7 (46. Qe5+ $142 Kf7 47. Bxh5+ Nxh5 48. Qxh5+ {[%mdl 64] Double Attack} Ng6 49. Bxa7 Qc7+ 50. Kg2) 46... Nd7 $2 (46... Ng4+ 47. Kg2 Qg8) 47. Qa6+ Qxa6 48. bxa6 {Weighted Error Value: White=0.33/Black=0.30} 1-0

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "7.1"]
[White "Goganov, Aleksey"]
[Black "Khairullin, Ildar"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2575"]
[BlackElo "2615"]
[Annotator "TA"]
[PlyCount "46"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,46,21,19,16,0,14,22,22,4,12,15,16,-6,0,0,10,17,21,0,20,-5,-14,-8,26,14,11,0,0,0,0,-2,0,-13,-18,-17,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. O-O d6 6. c3 O-O 7. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1g3,Bg3e4][%mdl 32]} a5 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 8. h3 Ba7 9. Re1 Ne7 10. Nf1 Ng6 11. Ng3 c6 12. d4 exd4 13. Nxd4 {[#]} d5 $146 ({Predecessor:} 13... Nxe4 14. Nxe4 d5 15. Bd3 Bxd4 16. cxd4 dxe4 17. Bxe4 Be6 18. Bxg6 hxg6 19. Be3 Qd7 {½-½ (28) Andriasian,Z (2585)-Inarkiev,E (2689) Katowice 2017}) 14. exd5 Nxd5 15. Ne4 h6 16. Qh5 Bxd4 17. cxd4 Ndf4 18. Bxf4 Nxf4 {The position is equal.} 19. Qf3 Be6 {Hoping for ...Nxh3+!} 20. Bxe6 Nxe6 21. Rad1 $1 Qb6 22. Qc3 Rad8 {[%cal Re6d4]} 23. Nc5 Nxc5 {Not much happened in this game.  Weighted Error Value: White=0.09/Black=0.05} 1/2-1/2

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "7.2"]
[White "Lintchevski, Daniil"]
[Black "Matlakov, Maxim"]
[Result "1/2-1/2"]
[ECO "C47"]
[WhiteElo "2555"]
[BlackElo "2688"]
[Annotator "TA"]
[PlyCount "46"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,33,0,-6,2,-7,9,4,6,10,6,4,7,4,11,3,6,3,4,10,17,21]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 {The position is equal.} O-O {C47: Scotch Four Knights and Four Knights with 4 g3.} 9. O-O Bg4 10. f3 Bh5 11. dxc6 {White wants to play Be3.} Qd4+ 12. Kh1 {[#] Black must now prevent Bxh7+!} Bxc3 13. bxc3 Qxc3 14. Rb1 Bg6 15. Rb3 Qxc6 16. Bb2 Rfd8 17. Qa1 {[#] A rather calm draw.  Weighted Error Value: White=0.03/Black=0.02} {Predecessor:} Bxd3 $146 18. cxd3 Rd6 19. Be5 Rd7 20. Rc1 Qa6 21. Bxf6 gxf6 22. Rc4 Rxd3 23. Rg4+ Kf8 {1-0 (32) Xiong,J (2709)-Oparin,G (2652) Lichess.org INT 2020} 1/2-1/2

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "7.3"]
[White "Levin, Evgeny A."]
[Black "Shimanov, Aleksandr"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2502"]
[BlackElo "2597"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,73,29,29,29,32,26,35,8,20,13,14,25,21,0,48,20,18,17,18,8,16,6,6,-14,-7,0,0,-16,-29,-48,-11,-10,-10,-12,-4,-8,0,-7,0,0,0,-96,-97,-202,-37,-41,-29,-41,-58,-80,-15,-17,0,0,23,25,26,19,19,19,19,24,277,115]} 1. d4 b6 2. e4 Bb7 3. Bd3 e6 4. Nf3 c5 5. c3 Nf6 6. Qe2 d5 {[%cal Rd5e4]} 7. e5 {B00: Queen's Fianchetto Defence, Nimzowitsch Defence.} Nfd7 8. a3 Be7 9. h4 {[#] White is slightly better.} a5 $146 ({Predecessor:} 9... c4 10. Bc2 h6 11. h5 Nc6 12. O-O Qc7 13. Nh2 O-O-O 14. f4 Kb8 15. Be3 Nf8 {1-0 (45) Hamdouchi,H (2592)-Filipovic,B (2413) Basel 2011}) 10. Bg5 (10. g3 {with more complications.} Nc6 11. a4 cxd4 12. cxd4 Nb4 13. Bb5) 10... Ba6 11. Bxa6 Nxa6 12. Nbd2 c4 13. Nf1 b5 14. Ng3 O-O 15. Qe3 Nc7 16. Bxe7 Qxe7 17. O-O b4 18. axb4 axb4 19. Nh5 Rfb8 20. Qf4 bxc3 21. bxc3 Nb5 22. Qg3 {[%csl Gh5][%cal Rg3g7]} Qf8 23. Nh2 Kh8 24. Ng4 Ra3 25. Rxa3 Nxa3 26. Re1 (26. f4 $11) 26... Rb3 $17 27. Re3 {[#]} (27. Nf4 $17 {was worth a try.}) 27... Nc2 $2 ({Black should try} 27... Nb1 $1 $19 {Threatens to win with ...h6.} 28. Kh2 Nd2) 28. Rf3 $15 Ne1 29. Re3 Nd3 30. Nf4 $1 Nxf4 (30... Nc1 $17) 31. Qxf4 $11 Rb1+ 32. Kh2 h5 {[#]} 33. Nf6 {[%cal Rf6d7]} Nxf6 ({Don't play} 33... gxf6 34. Rg3 $16) 34. exf6 g6 35. g4 hxg4 36. h5 {And now hxg6 would win.} Qg8 {[%mdl 8192] [#]} ({Worse is} 36... gxh5 37. Re5 g3+ 38. fxg3 Qg7 39. fxg7+ {[%mdl 64] Discovered Attack} Kg8 40. Rxh5 f5 41. Qc7 Rb2+ 42. Kh3 Rh2+ 43. Kxh2 f4 44. Rh8#) (36... g5 $11 {and Black is okay.} 37. Qxg5 Kh7) 37. Re5 {Weighted Error Value: White=0.16/Black=0.30} ({And not} 37. Qh6+ Qh7 $11) (37. Rxe6 $3 $18 {[%mdl 512] has better winning chances.} g3+ 38. fxg3) 1-0

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "7.4"]
[White "Yevseev, Denis"]
[Black "Romanov, Evgeny"]
[Result "1/2-1/2"]
[ECO "A41"]
[WhiteElo "2474"]
[BlackElo "2599"]
[Annotator "TA"]
[PlyCount "28"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,28,58,54,58,46,62,6,14,14,8,7,15,0,0,-1,0]} 1. d4 Nf6 2. c4 d6 3. Nf3 Bg4 4. Nc3 Bxf3 5. exf3 c6 6. d5 g6 7. Be2 Bg7 8. O-O O-O {A41: 1 d4 d6: Tartakower System and Modern Defence.} 9. f4 cxd5 {[#]} 10. Nxd5 $146 (10. cxd5 $14 Nbd7 11. Be3) ({Predecessor:} 10. cxd5 Nbd7 11. Be3 Nc5 12. Rc1 a6 13. b4 Nfe4 14. Nb1 Nd7 15. Qd3 Nef6 16. Bf3 {½-½ (60) Hernando Rodrigo,J (2389)-Randazzo,A (2266) Barcelona 2016}) 10... Nxd5 {The position is equal.} 11. Qxd5 Nc6 12. Be3 Rc8 13. Qd2 Qa5 14. Rfd1 b6 {Black took control after the opening.  Weighted Error Value: White=0.18/Black=0.07} 1/2-1/2

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "7.5"]
[White "Gorovykh, Eduard"]
[Black "Khalifman, Alexander"]
[Result "1/2-1/2"]
[WhiteElo "2488"]
[BlackElo "2608"]
[Annotator "TA"]
[PlyCount "42"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,14,14,15,21,6]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Be2 Bd6 $1 {The main line 6...Bd6 scores better than 6...Be7.} 7. O-O {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves.} O-O {[#] An uneventful encounter. Not enough moves} {Predecessor:} 8. c4 $146 dxc4 9. Bxc4 Nc6 10. Re1 Bf5 11. Nc3 Nxc3 12. bxc3 Re8 13. Be3 Qd7 14. Bd3 h6 15. Rb1 b6 16. h3 Ne7 17. Bxf5 Nxf5 18. Bd2 Rxe1+ 19. Bxe1 Re8 20. Bd2 c5 21. Qc2 cxd4 {½-½ (21) Talos,D (2315)-Pesa,L (2334) ICCF email 2014} 1/2-1/2

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "8.1"]
[White "Khairullin, Ildar"]
[Black "Khalifman, Alexander"]
[Result "1/2-1/2"]
[WhiteElo "2615"]
[BlackElo "2608"]
[Annotator "TA"]
[PlyCount "32"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,19,25,35,39,20,-6,22,35,35,24]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 cxd4 6. Qxd4 exd5 7. e4 {D41: Queen's Gambit Declined: Semi-Tarrasch with 5 cxd5.} dxe4 $1 {[%mdl 4] is more profitable than 7...Nc6 at the moment.} 8. Qxd8+ Kxd8 9. Ng5 Be6 10. Nxe6+ {[#]  Weighted Error Value: White=0.00/Black=0.00} {Predecessor:} fxe6 $146 11. Bg5 Nc6 12. Bc4 Ke7 13. Nxe4 Kf7 14. Bxf6 gxf6 15. O-O-O Rd8 16. Rxd8 Nxd8 {½-½ (48) Aronian,L (2781)-Vidit,S (2726) chess24.com INT 2021} 1/2-1/2

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "8.2"]
[White "Romanov, Evgeny"]
[Black "Gorovykh, Eduard"]
[Result "1/2-1/2"]
[ECO "C02"]
[WhiteElo "2599"]
[BlackElo "2488"]
[Annotator "TA"]
[PlyCount "42"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,42,28,8,8,-32,32,10,16,16,21,22,34,11,10,16,10,-16,-15,-15,-31,-34,-23,-52,-46,-77,-35,-41,-44,-36,-32,-32,-40,-144,-89]} 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Bd7 6. Bd3 cxd4 {C02: French: Advance Variation.} 7. O-O Bb5 (7... Nc6 $15) 8. Bxb5+ Qxb5 {The position is equal.} 9. cxd4 Ne7 10. Nc3 {[%cal Bb1c3,Bc3a4,Ba4c5][%mdl 32] [#]} Qb6 $146 ({Predecessor:} 10... Qd7 11. Ne2 Ng6 12. Ng3 Be7 13. Nh5 O-O 14. Re1 Nc6 15. Ng5 h6 16. Nf3 f6 17. exf6 Bxf6 {0-1 (39) Kozul,Z (2565)-Kurajica,B (2548) Solin/Spilt 2002}) 11. Na4 Qb5 12. Bd2 Nbc6 13. Nc5 Nf5 14. a4 Qb6 15. a5 Qb5 16. a6 Bxc5 17. axb7 Rb8 18. dxc5 Rxb7 19. b4 $1 O-O 20. Ra4 Rfb8 21. g4 ({White should try} 21. h3 $15) 21... Nfd4 {Weighted Error Value: White=0.23/Black=0.11} (21... Nfe7 $142 22. h3 d4) 1/2-1/2

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "8.3"]
[White "Shimanov, Aleksandr"]
[Black "Yevseev, Denis"]
[Result "1-0"]
[ECO "D46"]
[WhiteElo "2597"]
[BlackElo "2474"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,69,19,28,30,33,27,41,41,44,31,46,5,27,33,58,35,26,0,16,0,0,8,26,0,12,0,12,4,0,0,10,17,43,33,70,72,171,156,176,174,247,166,209,207,389,405,366,373,394,387,1037,1025,1025,1012]} 1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. Nc3 e6 5. b3 Nbd7 6. Bb2 Bd6 7. d4 O-O 8. Bd3 e5 9. cxd5 cxd5 {White must now prevent ...e4.} 10. dxe5 {D46: Semi-Slav: 5 e3 Nbd7 6 Bd3, Black avoids the Meran.} Nxe5 11. h3 Re8 12. O-O {White is slightly better.} a6 13. Rc1 Be6 {[#]} 14. Nd4 $146 ({Predecessor:} 14. Na4 Nxf3+ 15. Qxf3 Ne4 16. Bxe4 dxe4 17. Qxe4 Bxh3 18. Qxb7 Qg5 19. f4 Qg6 20. Bd4 {0-1 (43) Neverov,V (2502)-Martynov,P (2289) St Petersburg 2012}) 14... Rc8 15. Bb1 Nc6 16. Nxe6 fxe6 17. Qd3 Bb8 18. Rfd1 Qd6 {aiming for ...Qh2+.} 19. g3 Rf8 20. Qe2 Qe7 21. Kg2 Ba7 22. Rd2 Rf7 23. Re1 Rcf8 24. f4 Rd8 25. a3 e5 26. b4 d4 (26... exf4 $16 {was worth a try.} 27. exf4 Qxe2+ 28. Rexe2 (28. Rdxe2 Kf8 $14) 28... Kf8) 27. exd4 $18 exd4 {[#]} 28. Ne4 {[%cal Bc3e4,Be4g5,Bg5e6][%mdl 32]} Rff8 (28... Nxe4 {keeps fighting.} 29. Qd3 (29. Bxe4 g6 $16) (29. Qxe4 Qxe4+ 30. Rxe4 Rf6 $16) 29... Rf6) 29. Qd3 {Nxf6+ is the strong threat.} g6 30. Rde2 Nd5 $2 (30... Nxe4 31. Rxe4 Qd7 32. Ba2+ Kh8) 31. Ng5 Qd7 32. Ba2 Kh8 33. Ne6 {[%mdl 64] [#] Double Attack} Ndxb4 $2 (33... Nc7 34. Nxd8 Rxd8) 34. axb4 Nxb4 35. Qb3 {Weighted Error Value: White=0.08/Black=0.28} 1-0

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "8.4"]
[White "Matlakov, Maxim"]
[Black "Levin, Evgeny A."]
[Result "1-0"]
[ECO "C07"]
[WhiteElo "2688"]
[BlackElo "2502"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,85,-15,-9,-1,0,-6,0,0,33,0,0,0,0,0,5,0,14,0,6,7,7,0,0,10,34,20,33,29,115,106,114,95,126,110,267,270,275,260,352,325,310,297,293,286,368,384,392,394,386,381,327,244,244,245,257,246,569,570,597,567,589,577,498,398,288,292,676,674,668,661,654,609,581,568]} 1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 cxd4 5. Nxd4 Nf6 6. e5 Nfd7 7. N2f3 Nc6 8. Bf4 {C07: French Tarrasch: 3...c5, 4 Ngf3 and 4 exd5 Qxd5.} Qb6 9. Rb1 Be7 10. c3 {[#] The position is equal.} Nc5 $146 ({Predecessor:} 10... O-O 11. Bd3 Nc5 12. Bc2 Qa6 13. h4 Ne4 14. Bd3 Qxa2 15. Ng5 Nxd4 16. cxd4 Bd7 {0-1 (24) Tseitlin,M (2403)-Zifroni,D (2497) Israel 2012}) 11. Bd3 Nxd3+ 12. Qxd3 Bd7 13. O-O h6 14. h3 Rc8 15. Rfe1 O-O 16. Qd2 Kh7 17. Re3 Na5 18. b3 Kh8 {aiming for ...Nc4!} 19. Rbe1 Nc6 20. Nxc6 bxc6 {[#]} (20... Bxc6 $11 {keeps the balance.} 21. Nd4 Bd7) 21. Nh2 $1 $16 g5 {[#]} 22. Rg3 $1 Rg8 (22... gxf4 $2 23. Qxf4 Kh7 24. Ng4 $18) 23. Be3 Qb8 {This move loses the game for Black.} (23... c5 $16) 24. h4 $18 Rg7 (24... Qxe5 $2 25. Bd4 $18) (24... gxh4 {[#]} 25. Bxa7 $1 {[%mdl 512]} Rg5 26. Bxb8 $18) 25. hxg5 Rcg8 26. Rh3 ({Weaker is} 26. gxh6 Rxg3 27. fxg3 Rxg3 $16) 26... Rh7 27. gxh6 Rg6 28. b4 f5 29. exf6 Bxf6 30. Rg3 Rxg3 31. fxg3 Qxg3 32. Rf1 Rf7 33. Nf3 e5 34. Bg5 ({Don't play} 34. Bxa7 $6 e4 $16) 34... Kh7 $2 (34... Kg8 {is a better chance.} 35. Bxf6 Rxf6) 35. Bxf6 Rxf6 36. Ng5+ {[%mdl 64] Discovered Attack} Kg6 37. Rxf6+ Kxf6 38. Qf2+ Qxf2+ 39. Kxf2 Bf5 $2 {[#]} ({Wrong is} 39... Kxg5 $2 40. h7 $18) (39... Be8 40. h7 Kg7) 40. h7 $1 {White is clearly winning.} Kg7 41. h8=Q+ {[%mdl 64] Decoy} Kxh8 42. Nf7+ {[%mdl 64] Double Attack} Kg7 43. Nxe5 {Weighted Error Value: White=0.08/Black=0.43} 1-0

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "8.5"]
[White "Goganov, Aleksey"]
[Black "Lintchevski, Daniil"]
[Result "0-1"]
[ECO "B29"]
[WhiteElo "2575"]
[BlackElo "2555"]
[Annotator "TA"]
[PlyCount "112"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,112,32,96,22,16,-155,-160,-154,-158,-155,-99,-102,-106,-84,-52,-161,0,0,0,0,0,0,0,0,0,0,0,0,0,0,15,15,15,0,0,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-17,-17,-17,-17,-17,-17,-77,-77,-10968,-10968,-10935,-10917,-5089,-6817,-2772,-2344,-1662,-134,-12437,-5945,-29962,-29963,-29966,-29964,-29960,-29963,-29964,-29964,-29965,-29965,-29965,-29965,-29976,-29974,-29974,-29973]} 1. e4 c5 2. Nf3 Nf6 3. e5 Nd5 4. Nc3 e6 5. Nxd5 exd5 6. d4 Nc6 7. dxc5 Bxc5 8. Qxd5 Qb6 9. Bc4 Bxf2+ 10. Ke2 O-O 11. Rf1 Bc5 12. Ng5 Nd4+ 13. Kd1 Ne6 14. Ne4 d6 15. exd6 Rd8 {[%cal Rc5d6]} 16. Bf4 {B29: Sicilian: 2 Nf3 Nf6 (Nimzowitsch Variation).} ({But not} 16. Nxc5 $2 Rxd6 17. Nd3 Rxd5 $19) (16. Qh5 $16 Bxd6 17. Bd3 (17. Qxf7+ Kh8 $17)) 16... Nxf4 $11 17. Rxf4 ({Better is} 17. Qxf7+ $11 Kh8 18. Qxf4 Bxd6 19. Nxd6 Rxd6+ 20. Kc1) 17... Bxd6 $17 18. Qxf7+ {Black is clearly better.} ({Don't go for} 18. Rxf7 $2 Bg4+ 19. Kc1 Kh8 $19) 18... Kh8 19. Nxd6 {[#] White threatens Qf8+! and mate.} Qxd6+ (19... Be6 $142 $1 {[%cal Re6f7][%mdl 512]} 20. Bxe6 Qxd6+ 21. Ke2 Rf8 22. Qxf8+ Rxf8 23. Rxf8+ Qxf8) 20. Bd3 Be6 21. Qh5 {[%csl Gd3][%cal Rh5h7]} g6 22. Qf3 (22. Qg5 $15) 22... Rf8 $2 {[#]} (22... Qe5 $19 23. Kc1 Bf5) 23. g3 $146 ({Predecessor:} 23. Rxf8+ Rxf8 24. Qe2 Bg4 25. Qxg4 Rf1+ 26. Ke2 Rxa1 27. Qc8+ Kg7 28. Qxb7+ Kh6 29. Qxa7 Qxh2 {0-1 (66) Meszaros,M (2327)-Cvicela,A (2156) Slovakia 2002}) 23... Rxf4 24. Qxf4 Qxf4 25. gxf4 {[%mdl 4096] Endgame KRB-KRB} Rf8 26. Kd2 Rxf4 27. Re1 Bd5 ({Weaker is} 27... Bxa2 28. b3 $16) 28. Re5 Bc6 29. c4 Rf2+ (29... Kg8 {looks sharper.} 30. Kc3 Kf7 31. Re2 Rf3 32. b4 Kf6) 30. Re2 Rxe2+ 31. Kxe2 {KB-KB} Kg7 32. b4 Kf6 33. Ke3 Ke5 $1 34. a3 b6 35. Bc2 Be8 36. Be4 h6 37. h4 g5 38. hxg5 hxg5 39. c5 bxc5 40. bxc5 Bf7 41. Bb7 Bd5 42. Bc8 (42. Ba6 $1 $11) 42... Bc6 $17 43. Bg4 $2 {[%mdl 8192]} (43. Kf2 $17) 43... Kd5 $19 44. Kd3 Kxc5 45. Kc3 Kd5 46. Kd3 Bb5+ 47. Ke3 Bf1 $2 (47... Be8 $1 $19 {and Black stays clearly on top.} 48. Be2 Bd7) 48. Bd1 $2 {[%mdl 8192] [#] White does not recover from this.} (48. Kf3 $17) 48... Kc4 $1 49. Ke4 {[#]} Bh3 $1 {[%cal Rh3d7] Black mates.} 50. Kf3 a5 51. Ba4 Kc3 52. Be8 Kb3 53. a4 Kb4 54. Ke4 Bg4 55. Ke5 Bd1 56. Kf5 Bxa4 {Weighted Error Value: White=0.63/Black=0.32} 0-1

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "9.1"]
[White "Lintchevski, Daniil"]
[Black "Khairullin, Ildar"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "2555"]
[BlackElo "2615"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,53,1,-3,-8,-13,-25,-41,-25,-29,-22,-38,-33,-43,-43,-52,-42,-41,10,-45,-43,-38,-39,-56,-52,-53,-58,-57,-36,-40,-24,-25,-39,-33,-44,-62,-65,-63,0,0,0,-91]} 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. g3 d6 10. c4 Nb6 {Black is slightly better.} 11. Bg2 dxe5 12. Nd2 Be7 13. b3 O-O 14. Bb2 f6 {[#]} 15. O-O $146 ({Predecessor:} 15. O-O-O a5 16. f4 a4 17. Bh3 Qf7 18. Bxc8 Raxc8 19. fxe5 fxe5 20. Rhf1 Qg6 21. Qxe5 {1-0 (33) Idani,P (2604)-Sasikiran,K (2678) Astana 2019}) 15... Rb8 (15... a5 $15) 16. Ne4 ({White should play} 16. Bc3 $11) 16... h6 17. Rae1 a5 18. Bc3 a4 19. Nd2 axb3 20. axb3 Nd7 21. f4 Bb4 22. Bxb4 Rxb4 23. Kh2 Qd6 24. Ne4 Qe7 25. Nd2 Qd6 26. Ne4 Qe7 27. Nd2 {Weighted Error Value: White=0.10/Black=0.08} 1/2-1/2

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "9.2"]
[White "Levin, Evgeny A."]
[Black "Goganov, Aleksey"]
[Result "1/2-1/2"]
[WhiteElo "2502"]
[BlackElo "2575"]
[Annotator "RC"]
[PlyCount "19"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "900+10"]

1. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} c6 {[%emt 0:00:00]} 3. Nf3 {[%emt 0:00:01]} Nf6 {[%emt 0:00:00]} 4. e3 {[%emt 0:00:01]} Bg4 {[%emt 0:00:00]} 5. Nc3 {[%emt 0:00:17]} e6 {[%emt 0:00:00]} 6. h3 {[%emt 0:00:03]} Bh5 {[%emt 0:00:00]} 7. g4 {[%emt 0:00:04]} Bg6 {[%emt 0:00:00]} 8. Ne5 {[%emt 0:00:49]} Nbd7 {[%emt 0:00:01]} 9. Nxg6 {[%emt 0:00:02]} hxg6 {[%emt 0:00:02]} 10. g5 {[%emt 0:00:02]} 1/2-1/2

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "9.3"]
[White "Yevseev, Denis"]
[Black "Matlakov, Maxim"]
[Result "1/2-1/2"]
[ECO "E07"]
[WhiteElo "2474"]
[BlackElo "2688"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,80,15,0,0,0,4,18,31,20,18,12,9,31,46,43,43,40,53,26,35,18,10,0,0,-18,8,0,0,0,0,-26,-26,-26,-26,-24,-10,-15,-29,-61,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-64,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. Nc3 e6 5. g3 dxc4 6. Bg2 Nbd7 7. O-O Be7 8. e4 O-O 9. Bf4 Re8 {E07: Closed Catalan: Main Line (5 Nf3 0-0 6 0-0 Nbd7).} 10. a4 b6 11. Qe2 a5 12. Rfd1 Ba6 13. Nd2 Bb4 14. Nxc4 Nd5 15. Bd2 ({Of course not} 15. exd5 exd5 16. Qc2 Bxc4 $15) 15... Rc8 16. Rac1 {[#]} ({And not} 16. exd5 exd5 17. Qh5 Nf6 $17) 16... Nxc3 $146 ({Predecessor:} 16... Bf8 17. Bf1 e5 18. dxe5 Nxe5 19. b3 Ba3 20. Rc2 Qf6 21. f4 Nxc4 22. bxc4 {0-1 (40) Kobalia,M (2646)-Palac,M (2577) Gjakova 2016}) 17. Bxc3 Qe7 18. Bxb4 Qxb4 19. Qc2 Red8 20. Bf1 b5 21. Ne5 Nxe5 22. dxe5 {[#] Rxd8+ is the strong threat.} h6 23. Rd6 Rxd6 24. exd6 Qxd6 25. Qc5 Qd2 26. Rc2 Qd8 27. Qe3 Bb7 ({Black should try} 27... Rb8 $15) 28. Qa7 $1 $11 {[%cal Ra7b7]} Ba8 29. axb5 cxb5 30. Rxc8 Qxc8 31. Qxa5 Bxe4 32. Qxb5 Qc1 33. Qc4 Qb1 34. b4 Bd5 35. Qc8+ Kh7 {[#] White must now prevent ...Qe4.} 36. Qc3 $1 {The position is equal.} f5 37. f3 Kg6 38. b5 h5 39. Kf2 Kh7 40. h4 Kg6 {Weighted Error Value: White=0.04/Black=0.06} 1/2-1/2

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "9.4"]
[White "Gorovykh, Eduard"]
[Black "Shimanov, Aleksandr"]
[Result "1/2-1/2"]
[ECO "B15"]
[WhiteElo "2488"]
[BlackElo "2597"]
[Annotator "TA"]
[PlyCount "177"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,177,11,47,0,0,0,11,9,17,21,31,13,32,13,43,-45,-14,-140,13,-55,-4,-4,0,0,0,-8,0,-1,0,-14,-18,-42,-20,-34,-42,-38,-25,-35,-13,-22,-18,-37,-36,-38,-33,-32,-32,-45,0,-41,-41,-41,-41,-41,-41,-41,-41,-41,-41,-41,-41,-48,-39,-83,-41,-43,-43,-445,-445,-408,-348,-339,-203,-197,-185,-162,0,-183,0,0,0,0,0,0,0,0,0,0,0,-3,-3,-7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c6 2. d4 d5 3. f3 g6 4. Nc3 Bg7 5. Be3 Qb6 6. Na4 {B15: Caro-Kann: 3 Nc3: 3...g6 and 3...dxe4 4 Nxe4 Nf6 5 Nxf6+ exf6.} Qa5+ 7. c3 Nd7 {7...dxe4 is the modern continuation.} 8. b4 Qc7 9. e5 f6 10. f4 Nh6 11. Nf3 {[#]} a5 $146 ({Predecessor:} 11... O-O 12. Be2 a5 13. a3 Nb6 14. Nb2 Bg4 15. O-O Kh8 16. Qd2 axb4 17. axb4 Rxa1 18. Rxa1 {½-½ (108) Fedoseev,V (2674)-Rozum,I (2566) Chess.com INT 2020}) 12. a3 (12. b5 $14) 12... O-O {[%cal Rf6e5]} 13. Bd3 (13. b5 $11 {remains equal.}) 13... b5 $2 ({Of course not} 13... fxe5 $6 14. Nxe5 Nxe5 15. dxe5 $15) (13... Ng4 $17 14. Bc1 axb4) 14. Nb2 ({White should try} 14. Nc5 $11) 14... Nb6 (14... Ng4 $15 15. Qe2 Nxe3 16. Qxe3 axb4 17. cxb4 Bh6) 15. O-O $11 Nc4 16. Nxc4 dxc4 17. Be4 f5 18. Bc2 Be6 19. Ng5 Bd5 20. Qd2 Ra7 21. Rab1 axb4 22. axb4 Rfa8 23. Rb2 e6 24. Bd1 Bf8 25. Bf3 Qd7 26. Qf2 Be7 27. Bxd5 Qxd5 28. Qf3 Bxg5 (28... Kg7 {with more complications.} 29. Qxd5 exd5 30. h3 Ra3 31. Rc1 Nf7) 29. Qxd5 cxd5 30. fxg5 Nf7 31. Bf4 Ra3 32. Rc2 Kg7 33. g3 Rb3 34. Kf2 Raa3 35. Rfc1 h6 36. h4 Ra8 (36... h5 {feels hotter.} 37. Bd2 Nd8 38. Re1 Nc6 39. Re3 Kf8) 37. gxh6+ Nxh6 38. Bxh6+ $2 {[%mdl 8192]} (38. Bg5 $15) 38... Kxh6 $15 {[%mdl 4096] Endgame KRR-KRR} 39. Kf3 Raa3 40. Kg2 Kh5 (40... Ra4 $142 41. Re1 Rba3) 41. Kh3 $19 Ra8 42. Rg1 Raa3 43. Rgc1 g5 $2 (43... Ra4 $19 44. Rg1 Kh6) 44. hxg5 $11 {The position is equal.} Kxg5 45. Kg2 Kg4 46. Kf2 Ra6 47. Rh1 $1 Raa3 48. Rhc1 $1 Kg5 49. Kg2 Ra6 50. Rh1 $1 Rba3 51. Kf3 Ra2 (51... Ra7 {looks sharper.} 52. Rh8 Ra2 53. Rxa2 Rxa2 54. Rg8+ Kh5) 52. Rxa2 Rxa2 {KR-KR} 53. Rh8 Rc2 (53... Kg6 {keeps more tension.} 54. Rf8 Rc2 55. Kf4 Rf2+ 56. Ke3 Rc2) 54. Rg8+ Kh5 55. Re8 Kg5 56. Rg8+ Kh5 57. Re8 Rxc3+ 58. Kf4 Rc1 {Hoping for ...Rf1+.} 59. Rxe6 c3 60. Rc6 c2 {( -> ...Rf1+)} 61. Ke3 Kg5 62. Rc8 Re1+ 63. Kd2 {[%mdl 64] [#] Double Attack} Rd1+ 64. Kxc2 Rxd4 {White must now prevent ...Rc4+.} 65. Rg8+ Kh5 66. e6 Re4 67. Rd8 (67. Re8 {keeps more tension.} Kg5 68. Rd8 Rxe6 69. Rxd5 Kg4 70. Kd3) 67... Rxe6 68. Rxd5 Kg4 69. Rxb5 Rf6 70. Rb8 {Threatening Rg8+.} Kxg3 71. Kd3 f4 72. Rg8+ Kf2 73. b5 f3 74. Rg7 Kf1 75. Kd4 f2 76. Ra7 Kg2 (76... Rf4+ {is interesting.} 77. Kc5 Re4 78. b6 Kg2 79. Ra2 Re8) 77. Ra2 Kg3 78. Rxf2 Rxf2 {KR-KP} 79. b6 Kf4 80. Kd5 Rb2 81. Kc6 Ke5 (81... Rb4 {is more complex.} 82. b7 Ke4 83. Kc7 Rc4+ 84. Kb6 Rb4+) 82. b7 Ke6 83. Kc7 Rc2+ 84. Kd8 Rb2 85. Kc7 Ke7 86. b8=Q Rc2+ 87. Kb7 {[#] Intending Qe5+ and mate.} Rb2+ 88. Kc7 Rxb8 89. Kxb8 {Black had all chances to win.  Weighted Error Value: White=0.28/Black=0.22} 1/2-1/2

[Event "Blechzin Memorial 2021"]
[Site "St. Petersburg"]
[Date "2021.04.14"]
[Round "9.5"]
[White "Khalifman, Alexander"]
[Black "Romanov, Evgeny"]
[Result "1/2-1/2"]
[WhiteElo "2608"]
[BlackElo "2599"]
[Annotator "TA"]
[PlyCount "33"]
[EventDate "2021.04.14"]
[EventType "tourn"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,19,11,37,30,43,53,38,35]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb7 6. Bg2 Bb4+ 7. Bd2 c5 8. O-O {E15: Queen's Indian: 4 g3 sidelines, 4 g3 Ba6 and 4 g3 Bb7 early deviations.} Bxd2 9. Qxd2 cxd4 10. Qxd4 {[#] Not enough moves} {Predecessor:} Nc6 $146 11. Qh4 d5 12. Nc3 dxc4 13. Nd4 Nxd4 14. Bxb7 Rb8 15. Bg2 Nf5 16. Bc6+ Ke7 17. Qxc4 {0-1 (52) Inarkiev,E (2671)-Mozharov,M (2494) Moscow 2010} 1/2-1/2

