[Event "GCT Sinquefield Cup 2021"] [Site "Saint Louis"] [Date "2021.08.26"] [Round "9.1"] [White "Shankland, Sam"] [Black "Swiercz, Dariusz"] [Result "1/2-1/2"] [ECO "A11"] [WhiteElo "2709"] [BlackElo "2655"] [Annotator "TA"] [PlyCount "86"] [EventDate "2021.08.17"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 10,86,16,15,10,0,0,-14,0,0,0,0,0,0,0,0,1,-10,-13,-16,0,0,9,9,10,10,22, 22,16,4,14,0,14,21,18,15,4,12,16,0,0,0,5,4,10,8,14,13,12,12,10,8,12,8,8,7,22,7, 49,49,49,49,49,41,49,49,59,10,10,10,10,10,10,0,10,0,10,0,10]} 1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. c4 dxc4 5. O-O Nbd7 6. Qc2 Nb6 {A11: English Opening: 1...c6.} 7. a4 a5 8. Na3 Be6 9. Ng5 Qd7 10. e4 {[#]} Bg4 $146 {aiming for ...Be2.} ({ Predecessor:} 10... g6 11. Nxe6 Qxe6 12. Rb1 Bg7 13. b3 cxb3 14. Rxb3 Nfd7 15. Bb2 Bxb2 16. Qxb2 O-O 17. Rxb6 Nxb6 18. Qxb6 {1-0 (81) Mogranzini,R (2513) -Krejci,J (2503) Meissen 2013}) 11. Nxc4 Nxc4 12. Qxc4 e5 13. b3 Bb4 14. Bb2 h6 ({But not} 14... Bxd2 $6 15. Rad1 $16) 15. Nf3 Bxf3 16. Bxf3 Qe7 17. Rad1 O-O 18. d4 exd4 19. Rxd4 Nd7 20. Be2 Rad8 21. Rfd1 Nc5 22. Qc2 (22. Kg2 {seems wilder.} Rxd4 23. Rxd4 Qe6 24. Qxe6 Nxe6 25. Rd7) 22... Rxd4 23. Rxd4 Rd8 24. e5 (24. Rxd8+ {is interesting.} Qxd8 25. Bc4 Qe7 26. f3 b5 27. axb5 cxb5 28. Bxb5 Nxb3 29. Kg2) 24... Rxd4 25. Bxd4 Ne6 26. Bb2 Qc5 27. Qc4 Qxc4 28. Bxc4 $11 {[%mdl 4096] Endgame KBB-KBN} Nc5 29. Kf1 b5 30. axb5 cxb5 31. Bxb5 { Hoping for Bc4.} Nxb3 32. Ke2 Nc5 (32... Bc5 {with more complications.} 33. f4 Nd4+ 34. Bxd4 Bxd4 35. Kf3 Bg1) 33. Bd4 a4 34. Bxc5 Bxc5 35. Bxa4 $14 {KB-KB} Kf8 36. Bb3 Ke7 37. f4 f6 38. e6 f5 {The position is equal.} 39. Kf3 h5 40. Kg2 Kf6 41. Kf3 Ke7 42. Kg2 Kf6 43. Kf3 Ke7 {Weighted Error Value: White=0.05/ Black=0.04} 1/2-1/2 [Event "GCT Sinquefield Cup 2021"] [Site "Saint Louis"] [Date "2021.08.26"] [Round "9.2"] [White "Mamedyarov, Shakhriyar"] [Black "Vachier-Lagrave, Maxime"] [Result "1/2-1/2"] [ECO "D85"] [WhiteElo "2782"] [BlackElo "2751"] [Annotator "TA"] [PlyCount "49"] [EventDate "2021.08.17"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 23,49,13,21,4,20,19,21,0,0,0,0,0,0,0,0,0,0,0,0,-27,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Rb1 O-O 9. Be2 cxd4 10. cxd4 Qa5+ 11. Bd2 Qxa2 12. O-O Bg4 13. Rxb7 {D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 Nf3.} Bxf3 14. Bxf3 { [#] And now e5 would win.} Bxd4 15. e5 Na6 {[%CAl Bb8a6,Ba6c5,Bc5d3,Bd3e1] [%mdl 32]} 16. Rxe7 Rad8 {Threatens to win with ...Bc5.} 17. e6 fxe6 {[#] aiming for ...Bc5.} 18. Qe1 {[#]} Nc5 $146 ({Predecessor:} 18... Bf6 19. Rxa7 Rxd2 20. Rxa6 Qxa6 21. Qxd2 Qb6 22. g3 Bd4 23. Qe2 Rf6 24. Kg2 Qb2 25. Qxb2 Bxb2 {1/2-1/2 (44) Grischuk,A (2776)-Vachier Lagrave,M (2760) Bucharest 2021}) 19. Bc3 {Bxd4 is the strong threat.} Nd3 20. Bxd4 $1 Nxe1 21. Rg7+ Kh8 22. Rd7+ {The position is equal.} Kg8 ({Wrong is} 22... e5 $2 23. Bxe5+ Rf6 24. Bxf6+ Kg8 25. Rxd8+ $18) 23. Rg7+ Kh8 24. Rd7+ Kg8 ({Not} 24... e5 $2 25. Bxe5+ Rf6 26. Bxf6+ Kg8 27. Rxd8+ $18) 25. Rg7+ {A rather calm draw. Weighted Error Value: White=0.03/Black=0.00} 1/2-1/2 [Event "GCT Sinquefield Cup 2021"] [Site "Saint Louis"] [Date "2021.08.26"] [Round "9.3"] [White "So, Wesley"] [Black "Dominguez Perez, Leinier"] [Result "1/2-1/2"] [ECO "D27"] [WhiteElo "2772"] [BlackElo "2758"] [Annotator "TA"] [PlyCount "69"] [EventDate "2021.08.17"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 15,69,26,35,39,51,26,23,16,27,28,28,32,32,12,27,14,19,14,24,19,18,17,15, 32,40,6,5,3,2,0,10,0,6,2,5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 a6 6. O-O c5 7. dxc5 {7.e4 is the modern continuation.} Bxc5 8. Qxd8+ Kxd8 9. Be2 {D27: Queen's Gambit Accepted: Classical main line: 7 e4!? and 7 a4.} Ke7 10. Nc3 b5 11. Nd2 {White has an edge.} Bb7 12. Nb3 Nbd7 13. Na5 Rab8 14. Bd2 Ne4 15. Nxe4 Bxe4 16. Rfc1 Rhc8 17. a4 bxa4 {[#]} 18. Bxa6 $146 ({Predecessor:} 18. Bc3 a3 19. bxa3 Bd6 20. f3 Bd5 21. e4 Ba8 22. Bxa6 Rc7 23. a4 g5 24. Nc4 {1-0 (42) Gajewski,G (2613) -Simacek,P (2479) Katowice 2019}) 18... Rc7 19. Bc3 Bd6 20. Rxa4 ({Avoid the trap} 20. Bxg7 $2 Ra8 $19) 20... Nc5 {[#]The position is equal.} 21. Bb4 $1 { [%CAl Rb4c5] Hoping for Bxc5.} Bd5 22. Bf1 Rcc8 23. Bxc5 Rxc5 24. Rxc5 Bxc5 25. Nc4 Bxc4 26. Rxc4 $11 {[%mdl 4096] Endgame KRB-KRB} Bd6 27. Rc2 Be5 28. g3 Rxb2 29. Rxb2 Bxb2 {KB-KB} 30. h4 h6 31. Bd3 Bc3 32. Bc2 Bb2 33. Bd3 Bc3 34. Bc2 Bb2 35. Bd3 {Weighted Error Value: White=0.04/Black=0.01} 1/2-1/2 [Event "GCT Sinquefield Cup 2021"] [Site "Saint Louis"] [Date "2021.08.26"] [Round "9.4"] [White "Svidler, Peter"] [Black "Xiong, Jeffery"] [Result "1/2-1/2"] [ECO "C55"] [WhiteElo "2714"] [BlackElo "2710"] [Annotator "TA"] [PlyCount "87"] [EventDate "2021.08.17"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,87,14,40,22,29,23,43,31,40,42,47,35,103,109,114,101,112,101,93,43,47, 54,131,120,138,75,80,60,90,64,78,16,14,9,16,8,13,5,47,29,39,22,75,70,75,75,103, 56,60,48,54,20,17,16,19,0,0,0,0,0,0,0,0,0,0,-8,-1,-14,0,0,0,0,0,0,0,0,0,0,0,0] } 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. a4 d6 6. Nc3 {C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack.} g5 7. Be3 Bg7 {[#]} 8. h4 $146 { White is slightly better.} ({Predecessor:} 8. Qd2 Be6 9. O-O-O d5 10. exd5 Nxd5 11. Rhe1 O-O 12. Bxd5 Bxd5 13. h4 f6 14. hxg5 fxg5 15. Nxd5 Qxd5 {0-1 (63) Gokerkan,C (2452)-Sanal,V (2545) Kemer 2019}) 8... g4 9. Nh2 Ne7 10. Qe2 c6 { [#]} (10... h5 $14) 11. d4 $1 $36 {[%mdl 2048] White has strong initiative.} exd4 12. Bxd4 Ng6 13. O-O-O Qe7 14. Bxf6 (14. Kb1 {looks sharper.} a6 15. a5 h5 16. Nf1 Be6 17. Ne3) (14. Nf1) 14... Bxf6 15. Nxg4 Bxh4 {[#]} (15... Bxg4 $14 16. Qxg4 Bxc3 17. bxc3 Ne5) 16. Ne3 $1 Bf6 17. Qd2 (17. Rhe1 $142 Bxc3 (17... Be5 18. g3) (17... h5 18. Nf5 $18) 18. bxc3 Qf6 19. Qd2) 17... h5 18. Kb1 h4 19. Rhe1 {Black must now prevent Nf5.} Bg5 $1 20. Qxd6 ({White should play} 20. Qd4 $16 {And now Nf5 would win.} Qe5 21. Nf5 (21. Qxd6 Qxd6 22. Rxd6 h3 $14) 21... Qxd4 22. Rxd4) 20... Qxd6 $11 21. Rxd6 Ne5 {Strongly threatening ...Bxe3. } 22. Bb3 h3 23. gxh3 Bxh3 (23... Nf3 $5 {[%CAl Rf3e1]} 24. Rh1 Rxh3 $11) 24. Nf5 Rd8 25. Ka2 Rxd6 (25... Bg4 $11) 26. Nxd6+ $16 Ke7 27. Nxb7 Bc8 28. Nc5 Rh2 29. Rg1 f6 30. f4 Bxf4 {The position is equal.} 31. Rg8 Be3 $1 32. Nd3 (32. Rxc8 {is interesting.} Bxc5 33. a5 Bd4 34. Nd1 Re2 35. c3) 32... Nxd3 33. cxd3 Ba6 34. Rg7+ Kd6 35. Bc4 Bxc4+ 36. dxc4 $11 {[%mdl 4096] Endgame KRB-KRN} a5 37. Rf7 Bd4 38. Kb3 Rh4 39. Rf8 Kc5 40. Ra8 Kb6 41. Rb8+ Kc5 42. Ra8 Kb6 43. Rb8+ Kc5 44. Ra8 {Weighted Error Value: White=0.12/Black=0.10} 1/2-1/2 [Event "GCT Sinquefield Cup 2021"] [Site "Saint Louis"] [Date "2021.08.26"] [Round "9.5"] [White "Rapport, Richard"] [Black "Caruana, Fabiano"] [Result "1/2-1/2"] [ECO "B44"] [WhiteElo "2763"] [BlackElo "2806"] [Annotator "TA"] [PlyCount "123"] [EventDate "2021.08.17"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,123,20,18,7,8,8,16,14,12,0,4,-3,31,35,37,38,32,30,31,29,41,33,43,43, 50,34,43,45,50,43,64,61,90,70,72,66,73,70,71,66,68,0,0,0,0,0,0,0,0,0,0,0,0,0,0, -9,0,-31,-7,-7,-8,-2,0,0,0,-12,-12,-29,-29,-29,-30,-30,-33,-51,-35,-16,-24, -115,-130,-129,-130,-121,-121,-182,-177,-221,-233,-279,-212,-286,-286,-286, -264,-262,-253,-264,-256,-279,-198,-198,-197,-196,-196,-188,-14,-41,0,0,-8,-8, 0,0,0,-8,0,0]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Bf4 d6 { Threatening ...Nxd4.} 6. Nxc6 {B44: Sicilian: Taimanov: 5 Nb5.} (6. Bb5 { feels hotter.} Qc7 7. Ba4 e5 8. Nb5 Qa5+ 9. Bd2) 6... bxc6 7. c4 Rb8 8. Qc2 e5 9. Be3 Nf6 10. Nc3 Qc7 11. Be2 Be7 12. O-O {[#]} O-O $146 ({Predecessor:} 12... Be6 13. Rfc1 O-O 14. Rab1 a5 15. a3 Ng4 16. Bxg4 Bxg4 17. c5 Be6 18. cxd6 Bxd6 {1/2-1/2 (56) Warmerdam,M (2535)-Pichot,A (2630) chess24.com INT 2021}) 13. Rac1 Be6 14. b3 h6 15. h3 a5 16. Rfd1 Rfd8 17. Bf3 Nh7 18. Qe2 Bg5 19. Rd3 Qe7 20. Rcd1 Rd7 21. Bd2 Bxd2 22. Qxd2 Ng5 23. Be2 (23. Rxd6 Rbd8 $15) 23... Rbd8 $1 24. Qe3 f5 25. c5 ({White should try} 25. Bf3 $14) 25... d5 $11 26. exd5 Bxd5 27. f4 Ne4 28. Nxd5 cxd5 29. c6 d4 30. Qc1 Rc7 31. fxe5 Qxe5 32. Qc4+ Kh7 33. Bf3 Ng5 34. h4 (34. Rxd4 $2 Nxf3+ 35. gxf3 Qg3+ 36. Kf1 Qxf3+ 37. Kg1 Rxd4 $19) 34... Nxf3+ 35. Rxf3 Rd5 36. h5 Qe4 37. Rdf1 d3 {aiming for ...d2.} 38. Rf4 Qe6 39. Rxf5 $1 Qe3+ 40. Kh2 Rd4 41. Re1 $1 {[%CAl Re1e3]} Rxc4 {[%CAl Rc4h4]} 42. Rxe3 $15 {[%mdl 4096] Endgame KRR-KRR} Rd4 {...d2 is the strong threat.} 43. Rf1 (43. Re8 $1 $11 {keeps the balance.}) 43... d2 $17 44. Rd1 Rxc6 {White must now prevent ...Rc1.} 45. Re2 Rc2 46. a3 {[#]} (46. a4 $17 { was called for.}) 46... Rd5 $1 47. Kg3 Rc3+ 48. Kh4 Rd4+ (48... Rxb3 49. Rexd2 Rxd2 50. Rxd2 $19) 49. g4 Rdd3 {[%csl Gc3][%CAl Rd3h3]} (49... Rxb3 50. Rexd2 Rxd2 51. Rxd2 $19) 50. Rh2 Rc2 51. b4 {[#]} a4 ({Inferior is} 51... Rxa3 52. bxa5 Raa2 53. Re2 $11) 52. b5 Rb2 53. Rh3 Rd6 54. Rh2 Ra2 55. Rg2 Kg8 ({ Stronger than} 55... Rxa3 56. Rdxd2 Rxd2 57. Rxd2 $11) 56. Rh2 Kf7 $2 ({And not } 56... Rxa3 57. Rdxd2 Rxd2 58. Rxd2 $11) (56... Rd3 $19 {Threatens to win with ...Kh7.} 57. b6 Rb2) 57. Re2 $11 Rb2 (57... Rd7 {is more complex.} 58. b6 Kg8 59. Rdxd2 Rdxd2 60. b7 Rdb2) 58. Rf1+ {The position is equal.} Rf6 59. Rd1 Rd6 60. Rf1+ Rf6 61. Rd1 Rd6 62. Rf1+ {And White is the lucky defender. Weighted Error Value: White=0.09/Black=0.11} 1/2-1/2