[Event "Chigorin Memorial 2019"]
[Site "Saint Petersburg"]
[Date "2019.10.06"]
[Round "2.1"]
[White "Rudenko, Naum"]
[Black "Kovalenko, Igor"]
[Result "0-1"]
[ECO "C15"]
[WhiteElo "2286"]
[BlackElo "2674"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2019.10.05"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,118,7,2,51,38,44,25,70,76,102,110,107,102,82,74,85,74,93,87,87,50,52,52,63,60,69,67,62,48,47,67,63,68,69,54,73,73,73,73,75,72,71,0,95,62,106,98,93,66,66,66,70,63,72,60,58,0,0,0,0,0,0,0,0,-126,-127,-126,-121,-120,-113,-105,-125,-109,-95,-205,-205,-205,-138,-138,-138,-441,-426,-411,-375,-1000,-713,-572,-256,-1341,-1296,-1318,0,-118,0,0,0,0,0,0,0,0,0,-10,-48,-12845,-12846]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd3 dxe4 5. Bxe4 Nf6 6. Bf3 O-O 7. Nge2 Nbd7 8. O-O Qe7 $146 {C15: French: 3 Nc3 Bb4: Unusual White 4th moves} ({Predecessor:} 8... c6 9. Bf4 h6 10. Qd3 Be7 11. Rfe1 Nd5 {½-½ (11) Predojevic,B (2553)-Movsesian,S (2632) Moscow 2006}) 9. a3 Bd6 10. Ng3 Rd8 {White has an edge.} 11. Re1 Rb8 12. Nf5 Qf8 13. Nxd6 cxd6 14. Bf4 a6 15. Ne4 Nxe4 16. Bxe4 b5 17. Re3 f5 18. Bc6 Nf6 19. Qe1 Rb6 20. Bf3 Bd7 21. Qb4 h6 {aiming for ...g5.} 22. h4 Rc8 23. Rc3 Rxc3 24. Qxc3 Qb8 25. Re1 Kf7 26. Qb4 Qc7 27. Re3 Qb8 28. Re1 ({White should play} 28. Qa5 $16) 28... Bc8 (28... Qc7 $1 $11 {remains equal.}) 29. Qa5 Kg6 30. b3 Kh7 31. c4 bxc4 32. bxc4 Rb1 33. c5 Qb2 34. Bxd6 Bb7 35. c6 (35. Bxb7 $14 Ng4 36. Bg3 Qxa3 37. Qd2 (37. Rxb1 Qxa5 38. Bf3 Qa2 $16)) 35... Bxc6 $1 $11 36. Bxc6 Ng4 $1 37. Bg3 {Threatens to win with Kf1.} Qb6 {Played: Qb2xa3} 0-1

[Event "Chigorin Memorial 2019"]
[Site "Saint Petersburg"]
[Date "2019.10.06"]
[Round "2.2"]
[White "Ter-Sahakyan, Samvel"]
[Black "Gitelson, Arkady"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2616"]
[BlackElo "2282"]
[Annotator "TA"]
[PlyCount "115"]
[EventDate "2019.10.05"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,115,27,28,35,13,26,15,15,11,28,25,12,6,8,0,10,6,39,4,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,7,6,6,0,0,0,0,0,0,0,17,0,12,20,20,25,27,21,25,23,21,21,18,16,66,75,177,-9,-9,-9,-9,-12,-8,-9,29,22,77,14,12,14,14,14,14,14,28,27,92,92,256,255,252,245,378,375,426,416,408,394,369,316,316,316,316,316,29955,29958,29955,29950,29938,11570,6316,6267]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. d4 cxd4 6. Nxd4 a6 {And now ...Nxd4 would win. B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6} (6... Ng6 7. Be2 Be7 8. c4 Nxd4 9. Qxd4 O-O 10. Nc3 b6 11. Be3 Bb7 12. Rfd1 Bc6 13. Rac1 f5 14. exf5 {½-½ (36) Leko,P (2702)-Gelfand,B (2719) Hengshui 2019}) 7. Nxc6 Nxc6 8. Bxc6 (8. Bd3 {feels hotter.} Bc5 9. Nd2 Qc7 10. c3 O-O 11. a4) 8... bxc6 {The position is equal.} 9. c4 Be7 10. Nc3 O-O 11. e5 $146 ({Predecessor:} 11. Qd3 Qc7 12. b3 d6 13. Bb2 e5 14. Qg3 Be6 15. f4 f6 16. f5 Bf7 17. Rad1 Rfd8 18. Bc1 Qb7 {½-½ (18) Dvorak,V (2027)-Weissmann,L (2138) Ostrava 2006}) 11... d5 12. exd6 Bxd6 13. Be3 Qc7 14. h3 c5 15. Qe2 Bb7 16. Rad1 Rad8 17. f3 Be5 18. Qf2 Bg3 19. Qe2 Be5 20. Qf2 Bg3 21. Qc2 Be5 22. Ne2 {[%cal Bc3e2,Be2f4,Bf4d3,Bd3e5][%mdl 32]} Bf6 23. b3 h6 24. Bf2 Qa5 25. Kh1 Bc6 26. Rfe1 Qb4 27. Nf4 Bd4 28. Nd3 Qb6 29. Ne5 Be8 30. Bxd4 cxd4 31. Nd3 f6 32. c5 Qc6 33. Qc4 Bf7 34. Nb4 Qc7 35. Nxa6 ({Wrong is} 35. Rxd4 $2 e5 $19) 35... Qa5 (35... Qb7 $16 36. c6 Qb6) 36. Qa4 $2 (36. b4 $18 Qa4 37. Qd3) 36... Qxa4 $11 37. bxa4 Ra8 38. Nc7 Rxa4 {aiming for ...e5.} 39. Nxe6 Rc8 40. Rxd4 Rxa2 {[#]} (40... Rxd4 $11 41. Nxd4 Rxc5) 41. Rd8+ ({Better is} 41. c6 $1 $16) 41... Rxd8 42. Nxd8 {[%mdl 4096] Endgame next c6 is good for White. KRB-KRN} Rc2 43. Re7 Bd5 44. Rc7 Kf8 45. Nc6 Bc4 (45... Bxc6 $11 {keeps the balance.} 46. Rxc6 Ke8) 46. Nd4 $16 Rd2 $2 (46... Rc1+ $16 47. Kh2 g6) 47. Nf5 $18 {Threatens to win with Rc8+.} Bf1 48. Rxg7 Rd5 (48... h5 {was necessary.} 49. Kg1 Rd1) 49. Rg8+ $1 Kf7 50. Nxh6+ Ke7 51. c6 Rc5 52. c7 Rxc7 53. Rg7+ Kd8 54. Nf7+ Ke7 $2 (54... Kd7 $18 55. h4 Rc5) 55. Ng5+ Kd6 56. Ne4+ {[%mdl 64] [#] Double Attack} Kc6 57. Rxc7+ Kxc7 58. Nxf6 {Accuracy: White = 74%, Black = 51%.} 1-0

[Event "Chigorin Memorial 2019"]
[Site "Saint Petersburg"]
[Date "2019.10.06"]
[Round "2.3"]
[White "Salman, Pavel"]
[Black "Khalifman, Alexander"]
[Result "1/2-1/2"]
[ECO "E07"]
[WhiteElo "2282"]
[BlackElo "2614"]
[Annotator "ChessBase"]
[PlyCount "25"]
[EventDate "2019.10.05"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 3. Nf3 {[%emt 0:00:52]} d5 {[%emt 0:00:00]} 4. g3 {[%emt 0:00:36]} Bb4+ {[%emt 0:00:00]} 5. Bd2 {[%emt 0:00:20]} Be7 {[%emt 0:00:03]} 6. Bg2 {[%emt 0:01:11]} O-O {[%emt 0:00:08]} 7. O-O {[%emt 0:02:35]} c6 {[%emt 0:00:05]} 8. Qb3 {[%emt 0:01:02]} Nbd7 {[%emt 0:00:18]} 9. Bf4 {[%emt 0:03:08]} Nh5 {[%emt 0:00:08]} 10. Bc1 {[%emt 0:02:07]} Nhf6 {[%emt 0:00:08]} 11. Bf4 {[%emt 0:01:13]} Nh5 {[%emt 0:00:15]} 12. Bc1 {[%emt 0:01:48]} Nhf6 {[%emt 0:00:07]} 13. Qd1 {[%emt 1:21:38]} 1/2-1/2

[Event "Chigorin Memorial 2019"]
[Site "Saint Petersburg"]
[Date "2019.10.06"]
[Round "2.4"]
[White "Khismatullin, Denis"]
[Black "Khakimov, Timur"]
[Result "1-0"]
[ECO "E10"]
[WhiteElo "2611"]
[BlackElo "2278"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2019.10.05"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,51,50,50,50,49,61,56,56,56,56,77,62,96,58,55,53,52,50,54,52,59,49,57,48,70,50,110,83,162,138,155,158,163,163,176,188,305,290,392,385,451,446,896,857]} 1. c4 Nf6 2. Nf3 e6 3. d4 Nc6 4. Nbd2 (4. Nc3 Bb4 5. Qc2 d6 6. Bd2 Qe7 7. e3 a5 8. a3 Bxc3 9. Bxc3 e5 10. d5 Nb8 11. Nd2 O-O 12. b3 c6 13. dxc6 Nxc6 14. Bd3 Be6 15. O-O d5 16. cxd5 Bxd5 17. Rfd1 Rac8 {½-½ (17) Wagner,D (2580)-Nisipeanu,L (2670) Skopje 2019}) 4... Bb4 5. a3 Bxd2+ 6. Qxd2 {E10: Blumenfeld Gambit} O-O 7. b4 a6 $146 ({Predecessor:} 7... b6 8. Qc2 d5 9. Bf4 dxc4 10. Qxc4 Bb7 11. e3 Nd5 12. Bg3 f5 13. Bd3 f4 14. Bh4 {1-0 (52) Sukhareva,E (2201)-Charochkina,D (2380) Khanty-Mansiysk 2014}) 8. Bb2 {White is slightly better.} d5 9. e3 Qe7 10. Rc1 Rd8 11. Qc2 Bd7 12. Bd3 dxc4 13. Qxc4 Nd5 14. O-O a5 {[%cal Ra5b4]} 15. bxa5 Rxa5 16. Qc2 h6 17. Rfe1 {Strongly threatening e4.} Qd6 (17... Nb6 $14) 18. Nd2 {Nc4 is the strong threat.} Qe7 (18... Ra7 $16) 19. Nb3 $36 {[%mdl 2048] Black is under strong pressure.} Ra7 20. e4 $1 {[%cal Re4d5]} Nf4 {[#]} 21. Bf1 $1 Qg5 {[#]} 22. Re3 $1 {[%cal Re3g3]} Nh5 {[#]} (22... b6 $142 23. Rg3 Qh5) 23. d5 $1 $18 {[%mdl 512]} exd5 24. exd5 Qxd5 25. Rd1 Qg5 {[#]} ({Much worse is} 25... Qf5 26. Qxf5 Bxf5 27. Rxd8+ Nxd8 28. Re8+ {[%mdl 64] Double Attack} Kh7 29. Nd4 $18) (25... Bf5 $142 26. Rxd5 Bxc2 27. Rxd8+ Nxd8 28. Re8+ {[%mdl 64] Double Attack} Kh7 29. Rxd8 Bg6) 26. Rxd7 $1 {[%mdl 512] Accuracy: White = 83%, Black = 45%.} 1-0

[Event "Chigorin Memorial 2019"]
[Site "Saint Petersburg"]
[Date "2019.10.06"]
[Round "2.5"]
[White "Sichinava, Zviad"]
[Black "Petrosyan, Manuel"]
[Result "0-1"]
[ECO "A60"]
[WhiteElo "2278"]
[BlackElo "2611"]
[Annotator "TA"]
[PlyCount "36"]
[EventDate "2019.10.05"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,78,13,11,22,0,2,14,8,-16,-25,-47,-50,-52,-27,-29,-33,-63,-50,-91,-83,-157,-155,-283,-281,-256,-217,-194,-180,-196,-87,-104,-91,-119,-124,-97,-109,-97,-102,-118,-87,-93,-100,-174,-148,-163,-95,-149,-144,-307,-310,-333,-346,-334,-324,-380,-372,-516,-366,-707,-691,-964,-1041,-5156,-5156,-29992,-29993,-29994,-29995]} 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 {A60: Modern Benoni: Early Divergences} 8. Nh3 (8. Nf3 O-O 9. O-O Re8 10. Re1 a6 11. a4 Nbd7 12. e4 Ng4 13. Nd2 Nge5 14. Re3 Nb6 15. Qf1 a5 16. h3 c4 17. Kh2 Bd7 18. f4 Nd3 19. Nxc4 Nxc1 20. Rxc1 Nxc4 21. Qxc4 {½-½ (47) Ding,L (2805)-Navara,D (2734) Prague 2019}) 8... O-O 9. O-O Re8 {The position is equal.} 10. Nf4 Nbd7 $146 ({Predecessor:} 10... a6 11. a4 Nbd7 12. Re1 Rb8 13. Qc2 b5 14. axb5 axb5 15. Bd2 {0-1 (66) Mertz,W (1875)-Kislinger,G (2059) Bayern 2012}) 11. Qc2 a6 12. a4 Ne5 13. b3 Bd7 14. Rb1 Rc8 15. e4 b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 16. Nfe2 (16. axb5 $142 axb5 17. Nce2) 16... b4 $17 17. f4 (17. Nd1 $17) 17... Neg4 $19 {Strongly threatening ...c4.} ({Less strong is} 17... bxc3 18. fxe5 Rxe5 19. Nxc3 $15) 18. Nd1 {[#]} c4 {Played: Nf6xd5} 0-1

[Event "Chigorin Memorial 2019"]
[Site "Saint Petersburg"]
[Date "2019.10.06"]
[Round "2.6"]
[White "Yandarbiev, Ruslan"]
[Black "Rozum, Ivan"]
[Result "0-1"]
[ECO "B42"]
[WhiteElo "2278"]
[BlackElo "2599"]
[Annotator "TA"]
[PlyCount "132"]
[EventDate "2019.10.05"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,132,29,41,45,36,27,50,44,30,34,47,26,33,21,19,20,14,0,4,-5,7,0,9,-12,0,-16,-10,-10,-14,-13,-14,-21,-12,-13,-19,-16,-14,-14,-13,-10,-6,-48,-39,-70,-70,-68,-81,-70,-75,-72,-70,-90,-90,-90,-90,-90,-90,-82,-82,-90,-78,-108,-108,-97,-74,-107,-94,-108,-108,-124,-120,-123,-123,-135,-131,-184,-178,-172,-159,-283,-283,-283,-275,-212,-204,-222,-221,-631,-656,-493,-474,-686,-672,-648,-625,-1581,-1220,-4254,-3143,-2675,-2462,-956,-748,-5303,-5157,-10045,-6269,-10045,-6171,-29968,-29967,-29976,-29977,-29976,-29978,-29982,-29983,-29983,-29984,-29984,-29985,-29985,-29986,-29986,-29987]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Ne7 6. O-O {B42: Sicilian: Kan Variation: 5 Bd3} g6 (6... Nec6 7. Be3 Nxd4 8. Bxd4 Nc6 9. Bc3 b5 10. a3 e5 11. Bd2 Bc5 12. b4 Bd4 13. c3 Bb6 14. a4 bxa4 {1-0 (35) Vachier Lagrave,M (2789)-Artemiev,V (2691) Riadh 2017}) 7. Nc3 Bg7 8. Nf3 {White is slightly better.} Nbc6 9. Bf4 d6 $146 ({Predecessor:} 9... d5 10. e5 h6 11. h3 g5 12. Bg3 O-O 13. Re1 Ng6 {½-½ (52) Idani,P (2508)-Artemiev,V (2570) Yerevan 2014}) 10. Qd2 e5 11. Bh6 O-O 12. h3 Be6 13. Bxg7 Kxg7 14. Ng5 Qb6 15. Rad1 Rad8 16. Kh2 Bc8 17. Na4 Qb4 18. Qxb4 Nxb4 19. Nb6 h6 20. Nf3 f5 21. a3 Nxd3 22. cxd3 Be6 23. Rfe1 Nc8 $36 {[%mdl 2048] Black has some pressure.} 24. Nxc8 Rxc8 25. Rc1 Kf6 26. d4 Rxc1 27. dxe5+ dxe5 28. Rxc1 fxe4 $15 {[%mdl 4096] Endgame KRB-KRN} 29. Nd2 Bd5 30. Re1 Kf5 31. Nf1 Ke6 32. Kg3 g5 33. Ne3 h5 34. Re2 Rf4 35. Rd2 Bb3 36. Kh2 Rf7 37. Kg3 h4+ 38. Kh2 Ba4 39. Ng4 Rf8 40. Ne3 Bb5 41. Kg1 Bd3 42. f3 (42. Rd1 $17) 42... Rc8 $19 43. Kf2 Rc1 44. Ng4 (44. fxe4 $17 Bxe4 45. Rd8) 44... Rc2 $1 {[%cal Rc2d2]} 45. Rxc2 Bxc2 {KB-KN} 46. Ne3 Bd3 47. g3 exf3 $1 48. gxh4 $2 (48. Kxf3 e4+ 49. Kg4) 48... gxh4 49. Kxf3 {[#] intending Kg4.} Bf5 $1 50. Ng2 (50. Kg2 $142 e4 51. a4) 50... Bxh3 51. Nxh4 Kd5 52. Ke3 Kc4 53. Ng6 {[#]} Kb3 $1 54. Nxe5 Kxb2 55. Nc4+ Kc3 56. Nb6 Bg2 57. a4 a5 58. Nc8 Kb4 59. Nb6 Bc6 {Black mates.} 60. Kd4 Bxa4 61. Nd5+ Kb3 62. Nb6 Bb5 63. Kc5 Ba6 64. Kd4 a4 {[%cal Ba5a4,Ba4a3][%mdl 32]} 65. Nd7 a3 66. Nc5+ Kc2 {Accuracy: White = 41%, Black = 81%.} 0-1

[Event "Chigorin Memorial 2019"]
[Site "Saint Petersburg"]
[Date "2019.10.06"]
[Round "2.7"]
[White "Smirin, Ilia"]
[Black "Gomes, Mary Ann"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2599"]
[BlackElo "2268"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2019.10.05"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,96,11,10,24,-23,0,-12,18,6,37,41,39,39,74,77,85,32,32,32,31,32,35,27,39,21,20,13,28,10,17,0,7,14,23,0,68,66,120,121,126,145,142,137,456,455,541,449,609,609,583,301,302,300,299,242,274,288,285,282,274,269,311,311,315,300,326,319,274,266,477,431,511,507,519,502,443,394,421,336,336,336,336,336,329]} 1. e4 c5 2. Nf3 e6 3. d3 Nc6 4. g3 d6 5. Bg2 Nf6 6. O-O Be7 7. c4 O-O 8. Nc3 a6 {A30: Symmetrical English: Double Fianchetto and Hedgehog} 9. h3 Rb8 10. a4 Ne8 {The position is equal.} 11. d4 $146 ({Predecessor:} 11. Be3 e5 12. Nd2 f5 13. exf5 Bxf5 14. Nde4 Nc7 15. f4 exf4 16. Bxf4 Ne6 17. Be3 Qd7 {1-0 (47) Svetushkin,D (2575)-Sredojevic,I (2408) Cetinje 2016}) 11... cxd4 12. Nxd4 Nxd4 13. Qxd4 b6 14. Rd1 Qc7 15. Be3 ({White should play} 15. b3 $16) 15... Nf6 $14 16. b3 Nd7 17. Qd2 Bb7 18. Rac1 Rbc8 19. Bf4 {[%cal Rf4d6]} Ne5 20. Ne2 Qb8 21. Nd4 Qa8 22. Qe2 Nd7 23. b4 Rfe8 {[#] Strongly threatening ...e5.} 24. Nb3 Nf6 (24... e5 $11 25. Bd2 f5) 25. Bxd6 Nxe4 (25... Bxe4 $14 26. Bxe4 Qxe4 27. Qxe4 Nxe4 28. Bxe7 Rxe7) 26. Bxe7 $16 Rxe7 {[#]} 27. Qe3 $1 h6 28. a5 {[%cal Ba4a5,Ba5b6][%mdl 32]} Rec7 $2 {[%mdl 8192]} (28... bxa5 $16 {is tougher.} 29. Nxa5 Nc3) 29. axb6 $18 Rxc4 30. Na5 Rxb4 31. Nxb7 Rxc1 32. Qxc1 Qxb7 33. Qc7 Qxb6 34. Rd8+ Kh7 35. Bxe4+ f5 36. Qxb6 Rxb6 {[%mdl 4096] Endgame KRB-KR} 37. Bd3 a5 38. Ra8 Rd6 39. Bf1 Kg6 40. Rxa5 Kf6 41. h4 g5 $2 (41... e5 42. f3 Rc6) 42. h5 g4 43. Ra8 Rd7 44. Rg8 Rg7 45. Re8 Kg5 46. Bc4 f4 {White has a decisive advantage.} 47. Rxe6 fxg3 48. fxg3 Kxh5 {Accuracy: White = 58%, Black = 39%.} 1-0

[Event "Chigorin Memorial 2019"]
[Site "Saint Petersburg"]
[Date "2019.10.06"]
[Round "2.8"]
[White "Ter-Saakian, Grigorii"]
[Black "Kokarev, Dmitry"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2277"]
[BlackElo "2593"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2019.10.05"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,110,43,43,47,41,-132,-123,-115,-97,-97,-90,-100,-93,-157,-152,-191,-194,-179,-125,-131,-139,-126,-129,-126,-127,-125,-125,-132,-120,-115,-29,-31,-18,-8,52,0,0,0,0,-29,-29,-91,-102,-147,-134,-301,-320,-307,-281,-289,-258,-266,-253,-288,-134,-199,-174,-198,-215,-198,-198,-164,-40,-148,-95,-273,-276,-278,-271,-353,-351,-491,-484,-891,-891,-1716,-1696,-1527,-5192,-3123,-2632,-2409,-2141,-5112,-5097,-4143,-4143,-1632,-1698]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Nbd7 9. Qd2 Be7 10. g4 h6 11. O-O-O b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 12. h4 Nb6 13. Na5 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5} (13. Qf2 Nfd7 14. Kb1 Rc8 15. Nd5 Bxd5 16. exd5 Nc4 17. Bc1 g6 18. h5 g5 19. Bd3 Ndb6 20. Bf5 Rb8 21. Nd2 Nxd2+ 22. Rxd2 {½-½ (36) Bok,B (2599)-Van Wely,L (2657) Amsterdam 2016}) 13... Qc7 {Black wants to play ...b4.} 14. Rg1 $2 (14. a3 $14 {stays ahead.}) 14... b4 15. Ne2 $146 {Black is better.} ({Predecessor:} 15. Nb1 d5 16. g5 hxg5 17. hxg5 Nfd7 18. exd5 Nxd5 19. Nc4 Nxe3 20. Nxe3 Bc5 {0-1 (73) Zakaryan,D (2244)-Mamjan,M (2305) Sochi 2013}) 15... d5 $1 {[%cal Rd5e4]} 16. g5 hxg5 17. hxg5 Nfd7 18. f4 ({White should try} 18. Kb1) 18... dxe4 $17 19. fxe5 Nd5 (19... Bxa2 20. Bxb6 Nxb6 21. Nd4 $17) 20. Nb3 Nxe5 (20... Qxe5 21. Bd4 $11) (20... Rh2 $19 21. Bg2 Nxe5 22. Bxe4 Nc4) 21. Ned4 Rh2 22. Nxe6 fxe6 23. Qxh2 Nd3+ $1 {[%mdl 64] Discovered Attack} (23... Nxe3 24. Rd2 $16) 24. Bxd3 Qxh2 25. Bxe4 O-O-O $1 ({Stronger than} 25... Nxe3 26. Bg6+ (26. Rh1 Nxd1 27. Rxh2 O-O-O $11) 26... Kf8 27. Rh1 $11) 26. Bd2 {[#]} Nc3 {Played: Qh2-c7} 0-1

[Event "Chigorin Memorial 2019"]
[Site "Saint Petersburg"]
[Date "2019.10.06"]
[Round "2.9"]
[White "Gareyev, Timur"]
[Black "Saidov, Bilukhadzh"]
[Result "1/2-1/2"]
[ECO "D45"]
[WhiteElo "2591"]
[BlackElo "2260"]
[Annotator "ChessBase"]
[PlyCount "72"]
[EventDate "2019.10.05"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. c4 {[%emt 0:06:30]} c6 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:12]} d5 {[%emt 0:00:05]} 3. e3 {[%emt 0:00:42]} Nf6 {[%emt 0:02:24]} 4. Nc3 {[%emt 0:00:26]} e6 {[%emt 0:03:41]} 5. b3 {[%emt 0:00:10]} Bd6 {[%emt 0:00:28]} 6. Bb2 {[%emt 0:01:31]} O-O {[%emt 0:02:49]} 7. d4 {[%emt 0:01:55]} Nbd7 {[%emt 0:01:33]} 8. Be2 {[%emt 0:00:06]} Qe7 {[%emt 0:01:26]} 9. O-O {[%emt 0:01:01]} b6 {[%emt 0:01:10]} 10. Qc2 {[%emt 0:03:43]} Bb7 {[%emt 0:00:19]} 11. e4 {[%emt 0:00:54]} dxe4 {[%emt 0:04:08]} 12. Nxe4 {[%emt 0:05:32]} Nxe4 {[%emt 0:00:14]} 13. Qxe4 {[%emt 0:00:11]} Nf6 {[%emt 0:00:10]} 14. Qh4 {[%emt 0:00:13]} Ba3 {[%emt 0:01:10]} 15. Bxa3 {[%emt 0:03:29]} Qxa3 {[%emt 0:00:03]} 16. Rfd1 {[%emt 0:01:11]} Rad8 {[%emt 0:00:35]} 17. Ne5 {[%emt 0:08:16]} c5 {[%emt 0:01:30]} 18. Bf3 {[%emt 0:12:55]} Bxf3 {[%emt 0:02:20]} 19. gxf3 {[%emt 0:02:43]} cxd4 {[%emt 0:06:21]} 20. Rxd4 {[%emt 0:00:33]} Qc5 {[%emt 0:02:13]} 21. Rad1 {[%emt 0:01:08]} Rxd4 {[%emt 0:03:28]} 22. Qxd4 {[%emt 0:00:04]} Qxd4 {[%emt 0:01:25]} 23. Rxd4 {[%emt 0:00:03]} Rc8 {[%emt 0:00:07]} 24. Nc6 {[%emt 0:00:54]} Ra8 {[%emt 0:00:03]} 25. Nxa7 {[%emt 0:06:49]} g5 {[%emt 0:00:15]} 26. Nc6 {[%emt 0:05:03]} Rxa2 {[%emt 0:01:25]} 27. h4 {[%emt 0:01:27]} h6 {[%emt 0:01:46]} 28. hxg5 {[%emt 0:00:09]} hxg5 {[%emt 0:00:01]} 29. b4 {[%emt 0:02:26]} Nh5 {[%emt 0:02:26]} 30. Ne5 {[%emt 0:04:31]} Nf4 {[%emt 0:02:33]} 31. Rd8+ {[%emt 0:02:01]} Kg7 {[%emt 0:00:02]} 32. Rd7 {[%emt 0:00:07]} Kf6 {[%emt 0:00:11]} 33. Ng4+ {[%emt 0:02:19]} Kg6 {[%emt 0:02:17]} 34. Ne5+ {[%emt 0:02:23]} Kf6 {[%emt 0:00:10]} 35. Ng4+ {[%emt 0:00:36]} Kg6 {[%emt 0:01:52]} 36. Ne5+ {[%emt 0:00:38]} Kf6 {[%emt 0:00:02]} 1/2-1/2

[Event "Chigorin Memorial 2019"]
[Site "Saint Petersburg"]
[Date "2019.10.06"]
[Round "2.10"]
[White "Bimiev, Ahmad"]
[Black "Yuffa, Daniil"]
[Result "0-1"]
[ECO "A25"]
[WhiteElo "2266"]
[BlackElo "2577"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2019.10.05"]
[EventType "swiss"]
[EventCountry "RUS"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,64,18,18,28,24,15,15,28,25,-17,-18,0,0,-7,-7,-14,37,31,15,24,30,24,42,0,46,-68,-23,-353,-351,-333,-337,-329,-335,-332,-329,-376,-366,-381,-343,-340,-337,-368,-337,-399,-350,-423,-410,-431,-440,-981,-944,-1281,-1190,-2582,-2550,-29984,-29985]} 1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. Nc3 d6 5. e3 a6 6. Nge2 {A25: English Opening vs King's Indian with ...Nc6 but without early d3} Ba7 7. b3 (7. Rb1 h5 8. h4 Nf6 9. b4 Ng4 10. d4 Bf5 11. Rb2 Nf6 12. O-O {0-1 (65) Aravindh,C (2598)-Firouzja,A (2682) Xingtai 2019}) 7... h5 8. d4 {The position is equal.} h4 9. Bxc6+ bxc6 10. dxe5 dxe5 $146 ({Predecessor:} 10... Bg4 11. Qd2 {1-0 (39) Ritter Aguilar,J (1829)-Horta Gafarot,B (1881) Llinars del Valles 2018}) 11. Qxd8+ Kxd8 12. Ba3 Bg4 ({Black should try} 12... Ke8 $11) 13. O-O-O+ Kc8 14. h3 Bf3 15. Rhg1 Nh6 16. g4 Kb7 (16... g5 $5 {[%cal Rf7f5]}) 17. Rd2 (17. Rd7 $14) 17... g5 $1 $15 {White must now prevent ...f5.} 18. c5 $2 {[%mdl 8192] [#]} (18. Rd7 $11 {and White has nothing to worry.}) 18... f5 $1 $19 19. gxf5 g4 20. hxg4 h3 ({But not} 20... Nxg4 21. Ng3 $19) 21. Ng3 h2 ({Less strong is} 21... Nxg4 22. Nf1 $19) ({Weaker is} 21... Bxg4 22. f6 $15) 22. Re1 Nxg4 23. b4 a5 24. Nh1 axb4 25. Bxb4 e4 26. Nd1 Rh5 27. Ng3 Rh3 28. Rb2 Ka6 29. Rb3 (29. Rd2 $142) 29... Bxd1 30. Kxd1 Nxf2+ 31. Ke2 Rxg3 32. Kxf2 Rag8 {Accuracy: White = 37%, Black = 79%.} 0-1

