[Event "Gelfand Challenge"] [Site "Chess24"] [Date "2021.06.04"] [Round "10.3"] [White "Khademalsharieh, Sarasadat"] [Black "Gukesh D"] [Result "0-1"] [ECO "D36"] [WhiteElo "2494"] [BlackElo "2578"] [Annotator "TA"] [PlyCount "92"] [EventDate "2021.06.10"] [EventType "tourn"] [EventCountry "NET"] [Tiebreak "Koya+Number of black wins+Number of wins"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 22,92,6,0,12,13,16,0,32,31,22,29,13,27,77,22,14,-6,-13,-10,-6,-13,-8, -12,-4,-20,-35,-81,-90,-96,-98,-91,-99,-94,-102,-106,-96,-106,-104,-106,-101, -182,-114,-128,-125,-128,-108,-156,-156,-164,-164,-170,-160,-238,-226,-229, -220,-238,-239,-222,-230,-294,-299,-274,-283,-481,-456,-558,-547,-552,-530, -514,-463]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 O-O 7. Bd3 Nbd7 {[%CAl Bb8d7,Bd7f8,Bf8e6][%mdl 32]} 8. Nge2 c6 9. Qc2 Re8 10. O-O Nf8 11. f3 g6 $1 {[%mdl 4] is currently scoring better than 11...Be6.} 12. Rad1 Ne6 {D36: Queen's Gambit Declined: Exchange Variation: Main line (5 Bg5 c6 6 Qc2).} 13. Bh4 a6 14. Kh1 {[#]} Qc7 $146 {The position is equal.} ({Predecessor:} 14... b5 15. Bf2 Bb7 16. e4 Rc8 17. e5 Nh5 18. Qd2 c5 19. dxc5 Bxc5 20. Bxc5 Nxc5 {0-1 (59) Paul,J (2364)-Lubbe,N (2431) Magdeburg 2019}) 15. Bg3 Bd6 16. Qc1 Bxg3 17. Nxg3 b6 18. e4 ({White should try} 18. f4 $16) 18... Qf4 $11 19. Nce2 Qxc1 20. Rxc1 Bb7 21. e5 Nd7 22. f4 c5 23. h4 cxd4 24. Kg1 Ndc5 25. Rfd1 Rac8 26. f5 Nxd3 27. Rxc8 Bxc8 28. Rxd3 Nc5 29. Rxd4 Rxe5 30. Nf4 Bb7 31. a4 ( 31. fxg6 $17 fxg6 32. Kf2) 31... Kg7 (31... gxf5 32. Rb4 $17) ({Better is} 31... Re1+ $1 $19 32. Nf1 gxf5 33. Nxd5 Bxd5 34. Rxd5 Nxa4) 32. Rb4 Nd7 33. a5 b5 34. Rb3 Nc5 (34... gxf5 35. Rc3 $16) 35. Rc3 d4 36. Rc1 d3 {aiming for ... d2.} 37. Kf2 (37. Rd1 $17) 37... d2 $19 38. Rd1 {[#]} Nb3 ({Less strong is} 38... gxf5 39. Rxd2 Kf8 40. b4 $15) 39. fxg6 hxg6 ({But not} 39... fxg6 40. Nf1 $17) 40. Nf1 {[#]} Re4 $1 {[%CAl Re4f4]} ({Much less strong is} 40... Nxa5 41. Nxd2 Re7 42. Rc1 $17) 41. Ne2 Rxh4 42. Nxd2 Nxa5 43. Nf1 $2 (43. b3) 43... Rb4 {Black is clearly winning.} 44. Rd2 Nc4 45. Rd7 Bc8 46. Rc7 Bg4 {Weighted Error Value: White=0.26/Black=0.06} 0-1 [Event "Gelfand Challenge"] [Site "Chess24"] [Date "2021.06.04"] [Round "9.9"] [White "Gukesh D"] [Black "Liang, Awonder"] [Result "1-0"] [ECO "A50"] [WhiteElo "2578"] [BlackElo "2592"] [Annotator "TA"] [PlyCount "43"] [EventDate "2021.06.10"] [EventType "tourn"] [EventCountry "NET"] [Tiebreak "Koya+Number of black wins+Number of wins"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 10,43,24,31,23,20,37,28,41,29,25,7,73,56,33,82,89,25,131,83,180,133,107, 71,453,441,423,419,522,545,533,536,1128,1137,1228,1223]} 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. e4 Nxc3 {A50: Queen's Fianchetto Defence (1 d4 Nf6 2 c4 b6).} 7. bxc3 e5 8. Nf3 {8.Nf3 is better than 8.dxe5.} exd4 { White has an edge.} 9. Bc4 d3 10. Qb3 Qe7 {[#]} (10... Qf6 $1 $11 {keeps the balance.}) 11. Ng5 $1 $36 {[%CAl Rc4f7][%mdl 2048] [#] White has some pressure. } Nd7 $146 {White must now prevent ...0-0-0.} ({Predecessor:} 11... f6 12. Nf7 Qxe4+ 13. Be3 Bc5 14. O-O-O Bxe3+ 15. fxe3 Rf8 16. Rxd3 Nd7 17. Rhd1 Nc5 18. Bb5+ Bc6 19. Bxc6+ Qxc6 20. Rd8+ Rxd8 21. Rxd8+ Ke7 22. Qd1 Kxf7 {0-1 (22) Sanikidze,T (2507)-Moiseenko,V (2501) St Petersburg 2018}) 12. Bxf7+ Kd8 {[#]} 13. Be3 ({White should play} 13. O-O $1 $16) 13... h6 {[#]} ({But not} 13... Bxe4 $2 14. Nxe4 Qxe4 15. Bd5 $18) (13... Nc5 $1 $11 14. Ne6+ Qxe6 15. Bxe6 Nxb3 16. axb3 Bxe4) 14. Bd5 $1 Kc8 (14... Nc5 $16 15. Bxc5 Qxg5 16. Bxb7 Bxc5) 15. Nf7 Rh7 16. Rd1 Nf6 $2 {[%mdl 8192] A mistake that costs the game.} (16... g5 $16 {is a better chance.}) 17. Be6+ $18 Kb8 18. e5 Bc8 19. Bxc8 {White is clearly winning.} Kxc8 20. exf6 gxf6 {[#]} 21. Qd5 {[%mdl 64] Double Attack} Rb8 (21... Qxf7 22. Qxa8+) 22. Qf5+ {[%mdl 64] Double Attack. Weighted Error Value: White=0.16/Black=0.71} 1-0 [Event "Gelfand Challenge"] [Site "Chess24"] [Date "2021.06.04"] [Round "8.2"] [White "Salimova, Nurgyul"] [Black "Gukesh D"] [Result "0-1"] [ECO "E04"] [WhiteElo "2395"] [BlackElo "2578"] [Annotator "TA"] [PlyCount "90"] [EventDate "2021.06.10"] [EventType "tourn"] [EventCountry "NET"] [Tiebreak "Koya+Number of black wins+Number of wins"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 11,89,15,17,13,19,23,28,6,79,70,81,81,74,77,76,82,115,99,94,22,11,13,77, 82,88,89,112,89,80,93,96,88,106,104,123,120,113,107,155,148,214,93,113,107,110, 104,108,138,129,134,127,81,82,80,93,93,94,93,95,54,68,49,118,120,161,0,205,190, 231,217,233,-200,214,-209,-216,-29996,-29994,-29994,-29989,-29999]} 1. Nf3 Nf6 2. d4 d5 3. c4 e6 4. g3 dxc4 5. Bg2 a6 6. O-O Nc6 7. Nbd2 {E04: Open Catalan: 5 Nf3.} b5 8. b3 {outshines the older 8.Ne5.} c3 9. Nb1 {[#] Black must now prevent Ne5.White has an edge.} c2 $146 (9... b4 $11 {remains equal.}) ({ Predecessor:} 9... b4 10. a3 Rb8 11. axb4 Bxb4 12. Qd3 e5 13. Nxe5 Nxe5 14. dxe5 Qxd3 15. exd3 Nd7 {1/2-1/2 (109) Fridman,D (2601)-Ter Sahakyan,S (2640) Lichess.org INT 2020}) 10. Qxc2 $16 Bb7 11. a3 Be7 (11... Nxd4 $2 12. Nxd4 Bxg2 13. Kxg2 $18) 12. Bb2 O-O 13. Nbd2 h6 14. Rac1 Rc8 15. e3 (15. Ne1 $16 Nxd4 16. Bxd4 Bxg2 17. Bxf6 Bxf1 18. Bxe7 Qxe7 19. Kxf1) 15... Nb8 $11 16. b4 Nbd7 ( 16... a5 $1 $11) 17. Nb3 Be4 18. Qe2 Nb6 19. Nfd2 Bxg2 20. Kxg2 c6 21. Rc2 Qd7 22. Rfc1 Rc7 23. Na5 Rfc8 24. Qf3 Nbd5 25. Ndb3 Ne8 (25... Qe8 $16 26. e4 Nb6) 26. Rd1 (26. e4 $18 {and the rest is easy.}) 26... f5 27. e4 fxe4 28. Qxe4 Nef6 29. Qe2 Bd6 30. Re1 Re8 31. Nc5 Bxc5 32. Rxc5 Kf7 33. Rec1 {[%CAl Ra5c6]} Rec8 34. Qf3 Kg8 35. R1c2 Qe8 36. Bc1 Kh8 ({Black should play} 36... Nd7 $14) 37. Bf4 $16 Rf7 38. Rxc6 $2 (38. Nxc6 $18 Ra8 39. Re2) 38... Rd8 $2 (38... Rxc6 $11 {and Black stays safe.} 39. Rxc6 (39. Nxc6 Nd7 $11) 39... Nd7) 39. Be5 $18 (39. Rxa6 Nh7 $11) 39... Rf8 {intending ...Qg6.} 40. Qe2 ({Weaker is} 40. Rxa6 Qg6 $17) 40... Qg6 {...Ng4 is the strong threat.} 41. Rc1 $4 {[%mdl 8192]} ({ Worse is} 41. Rxa6 Ng4 $17) (41. Rxe6 $18 Rde8 42. Rcc6 (42. Rxa6 $2 Rxe5 { [%mdl 64] Deflection} 43. Qxe5 Qxc2 $19)) 41... Qf5 $4 {[%mdl 8192]} (41... Ng4 $19 {and life is good for Black.} 42. f3 Nxe5 43. Qxe5 Nf4+ 44. Kh1 Nd3 { [%mdl 64] Double Attack, Discovered Attack}) 42. Qc2 {[%mdl 8192]} (42. Nb7 $18 Ra8 43. Qf3) 42... Ne4 $19 {[%mdl 1024] ( -> ...Qf3+). Black has strong compensation.} 43. Rf1 $2 (43. Qe2 $19 Qxf2+ 44. Qxf2 Rxf2+ 45. Kh1) 43... Qf3+ {Black mates.} 44. Kg1 {[#]} Ne3 $1 {[%csl Ge3][%CAl Rf3g2][%mdl 576] Double Attack, Pin} 45. Qb1 (45. Qxe4 Qxe4) 45... Qg2# {Weighted Error Value: White=0. 65/Black=0.42} 0-1 [Event "Gelfand Challenge"] [Site "Chess24"] [Date "2021.06.04"] [Round "7.10"] [White "Gukesh D"] [Black "Badelka, Olga"] [Result "1-0"] [ECO "C00"] [WhiteElo "2578"] [BlackElo "2418"] [Annotator "TA"] [PlyCount "55"] [EventDate "2021.06.10"] [EventType "tourn"] [EventCountry "NET"] [Tiebreak "Koya+Number of black wins+Number of wins"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 16,55,0,-23,-6,-33,-34,-27,-33,-49,-19,-28,0,-22,59,59,59,62,85,72,96, 68,86,47,38,66,112,110,166,164,141,145,401,361,482,284,556,549,1498,1479,29995, 29996]} 1. Nf3 Nf6 2. g3 e6 3. Bg2 d5 4. O-O Be7 5. d3 O-O 6. Nbd2 c5 7. e4 Nc6 8. Re1 Qc7 9. Qe2 Rd8 {C00: French: Unusual White 2nd moves.} 10. e5 Nd7 11. Nf1 b5 {[%CAl Bb7b5,Bb5b4][%mdl 32] Black has an edge.} 12. Bf4 b4 13. h4 a5 { [#]} 14. h5 $146 ({Predecessor:} 14. Ne3) 14... Ba6 (14... h6 $1 $11) 15. h6 $14 g6 16. Ne3 Nf8 17. Ng4 a4 18. Qe3 Nd4 19. Rac1 Nf5 20. Qd2 c4 21. Bg5 c3 ( 21... Bxg5 $16 22. Qxg5 (22. Nxg5 Nd7 $14) 22... Nd7) 22. bxc3 $18 bxc3 23. Qf4 {Threatens to win with Bxe7.} Kh8 $2 {[%mdl 8192] This costs Black the game.} ( 23... Bxg5 $16 24. Nxg5 Nd7) 24. Nf6 Nd7 {[#] ...Nxf6 would now be nice for Black.} 25. Nxh7 Kxh7 $2 (25... Qc5 {might work better.} 26. Bxe7 Qxe7) 26. Bxe7 Nxe5 27. Ng5+ ({Less strong is} 27. Nxe5 Qxe7 28. Bh3 Bb7 $16) 27... Kh8 28. Bf6+ {[%mdl 64] Double Attack. Weighted Error Value: White=0.26/Black=0.93} 1-0 [Event "Gelfand Challenge"] [Site "Chess24"] [Date "2021.06.04"] [Round "6.1"] [White "Keymer, Vincent"] [Black "Gukesh D"] [Result "1-0"] [ECO "A17"] [WhiteElo "2591"] [BlackElo "2578"] [Annotator "TA"] [PlyCount "129"] [EventDate "2021.06.10"] [EventType "tourn"] [EventCountry "NET"] [Tiebreak "Koya+Number of black wins+Number of wins"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,129,4,4,4,0,0,0,3,31,24,18,25,23,25,40,30,35,32,26,19,17,8,9,8,68,64, 67,41,62,31,47,37,44,46,42,54,55,37,39,35,39,25,31,34,35,18,39,37,63,54,58,57, 65,49,49,55,69,0,49,49,76,39,45,17,17,17,22,22,76,24,109,58,430,412,400,278, 241,208,464,462,562,520,726,704,694,844,825,834,835,832,821,814,787,691,758, 762,1019,983,902,891,1146,715,693,696,809,764,627,472,733,476,1946,1936,2044, 819,29975,29976,29992,29993,29993,29966,29997,29998]} 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. e3 b6 5. cxd5 exd5 6. g3 {A17: English Opening: 1...Nf6 with ...Bb4.} Bb7 7. Bg2 Nbd7 8. O-O {The position is equal.} g6 9. b3 Bg7 {[#]} 10. Bb2 $146 ({Predecessor:} 10. Ba3 c5 11. b4 O-O 12. bxc5 bxc5 13. Rc1 Re8 14. Re1 Ne4 15. Bb2 Rb8 16. d3 Nxc3 17. Bxc3 Bxc3 18. Rxc3 {1/2-1/2 (70) Dubov,D (2696)-Yu,Y (2760) Liaocheng 2018}) 10... O-O 11. Rc1 a6 12. Re1 Qe7 13. d3 Rfe8 14. Re2 Rad8 15. Rec2 c5 16. d4 c4 ({Better is} 16... Ne4 $11) 17. Nd2 $14 cxb3 18. Nxb3 Qd6 19. Nb1 Rc8 20. Ba3 Qb8 21. Nc3 {[%CAl Bb1c3,Bc3e2,Be2f4][%mdl 32]} Bf8 22. Bxf8 Kxf8 23. Ne2 Rxc2 24. Rxc2 Rc8 25. Nf4 Rxc2 26. Qxc2 Qd6 27. Nc1 Ke7 28. Nce2 Nf8 29. Nd3 Ne6 30. Qb3 Ne4 31. h4 Nd2 32. Qd1 Ne4 33. Qb3 Nd2 $1 {[%CAl Rd2b3]} 34. Qc2 Ne4 35. Qb2 (35. g4 {is more complex.} a5 36. f3 Nf6 37. g5 Nd7 38. f4) 35... a5 36. Nc3 Nxc3 $1 37. Qxc3 f6 38. Qb3 Qc6 (38... Ba6 $11) 39. h5 (39. g4 $16) 39... g5 (39... Kf8 $11 {remains equal.}) 40. Qb1 (40. Nb2 $16) 40... b5 $2 {[%mdl 8192] This costs Black the game.} (40... Kf8 $14) 41. Nc5 $18 Nf8 42. a3 Bc8 43. Qb3 Kd6 $2 (43... Nd7 44. Qb1 (44. Qxd5 Qxd5 45. Bxd5 Nxc5 $11) (44. Bxd5 Nxc5 45. dxc5 Qxc5 $18) 44... Nf8) 44. e4 Nd7 45. exd5 Nxc5 46. Qf3 (46. dxc6 $2 {loses.} Nxb3 47. d5 Nd4 $19) 46... Qd7 47. Qxf6+ { [%mdl 64] [#] Double Attack} Ne6 48. Qe5+ Ke7 49. dxe6 Qxe6 50. Qxg5+ Qf6 51. Qc5+ {[%mdl 64] [#] Double Attack} Kd8 52. Qxb5 Qxd4 53. Qxa5+ Ke8 54. Qb5+ Bd7 55. Qb8+ Kf7 56. Qb3+ Be6 57. Qf3+ Kg7 58. Kh2 Bg4 (58... h6 $142 59. Qb7+ Bf7) 59. Qe3 Qf6 (59... Qxe3 $142 60. fxe3 Bd7) 60. h6+ Kg6 61. a4 Qa1 62. Be4+ { White mates.} Kh5 63. Qc5+ Kxh6 64. Qf8+ Kh5 65. Qf7+ {[%mdl 64] Double Attack. Weighted Error Value: White=0.15/Black=0.36} 1-0