[Event "GCT Sinquefield Cup 2021"] [Site "Saint Louis"] [Date "2021.08.23"] [Round "6.1"] [White "Caruana, Fabiano"] [Black "Vachier-Lagrave, Maxime"] [Result "1/2-1/2"] [ECO "B90"] [WhiteElo "2806"] [BlackElo "2751"] [Annotator "TA"] [PlyCount "91"] [EventDate "2021.08.17"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 23,91,16,35,19,14,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-17, -18,-18,-18,-13,-30,-29,-19,-30,-20,-20,0,0,0,0,0,0,0,0,0,0,0,0,84,0,18,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 O-O 10. O-O-O Nbd7 11. g4 b5 12. g5 Nh5 $1 {[%mdl 4] is currently scoring better than 12...b4.} 13. Kb1 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} Nb6 14. Na5 Rc8 15. a3 g6 16. h4 Ng3 17. Rg1 Nxf1 18. Rgxf1 Na4 $1 {[%CAl Ra4c3]} 19. Nxa4 bxa4 20. h5 $1 Qc7 21. Rh1 Rfe8 22. Qh2 $1 {[#] hxg6 is the strong threat.} Bf8 $1 ({ Weaker is} 22... Qxa5 23. hxg6 Bd8 24. gxf7+ Kxf7 25. g6+ Kf6 26. Qh4+ Kg7 27. Qh6+ Kg8 28. Qxh7+ Kf8 29. Bh6#) 23. c4 Re7 $1 24. Bd2 Bxc4 25. Bb4 Rd7 {[#]} 26. f4 $146 ({Predecessor:} 26. Nxc4 Qxc4 27. hxg6 fxg6 28. Qh3 Qf7 29. Rd5 Rc4 30. Rhd1 Rcc7 31. Bxd6 Bxd6 32. Rxd6 Rxd6 33. Rxd6 Rc1+ 34. Kxc1 Qc7+ 35. Kb1 Qxd6 36. Qc8+ Kg7 37. Qb7+ {1/2-1/2 (37) Szijarto,A (2294)-Voiculescu,C (2458) ICCF email 2017}) 26... Bb5 27. hxg6 $1 fxg6 28. f5 Rg7 29. f6 Rf7 30. Qd2 Qd7 31. Qd5 Be2 32. Rc1 Rxc1+ 33. Rxc1 h5 34. Nc4 Bxc4 35. Rxc4 h4 36. Rc2 h3 37. Ka2 Kh8 {[#]} (37... Qb7 $11) 38. Rd2 (38. Rh2 $1 $16 {[%CAl Rh2h3]}) 38... Rh7 $11 {And now ...h2 would win.The position is equal.} 39. Bxd6 Qxd6 40. Qxd6 Bxd6 41. Rxd6 {[%CAl Rd6d8] KR-KR} Kg8 $1 {White must now prevent ...Rh5.} 42. Rd8+ Kf7 {aiming for ...Rh5.} 43. Rd7+ Kg8 44. Rd8+ Kf7 {Hoping for ...Rh5.} 45. Rd7+ Kg8 46. Rd8+ {Weighted Error Value: White=0.07/Black=0.06} 1/2-1/2 [Event "GCT Sinquefield Cup 2021"] [Site "Saint Louis"] [Date "2021.08.23"] [Round "6.2"] [White "Dominguez Perez, Leinier"] [Black "Svidler, Peter"] [Result "1/2-1/2"] [ECO "C54"] [WhiteElo "2758"] [BlackElo "2714"] [Annotator "TA"] [PlyCount "70"] [EventDate "2021.08.17"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 13,70,2,26,37,37,17,20,0,0,0,0,0,0,0,0,19,6,1,0,0,0,-5,32,31,64,41,36, 28,39,0,0,-63,8,0,0,0,0,-14,0,0,0,-2,0,0,0,0,0,0,0,-12,-26,-16,0,-11,0,-19,0, -6,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. Bg5 (6. O-O h6 7. b4 Bb6 8. Nbd2 O-O 9. Re1 Ne7 10. Bb3 Ng6 11. a4 c6 12. a5 Bc7 13. d4 Re8 14. dxe5 Nxe5 15. Nxe5 Rxe5 16. Bb2 Re8 17. c4 Be6 18. h3 d5 19. cxd5 cxd5 20. e5 Ne4 21. Nxe4 dxe4 22. Bxe6 Rxe6 23. Rxe4 {0-1 (57) Dominguez Perez,L (2758) -Svidler,P (2714) Saint Louis 2021}) 6... h6 7. Bh4 Qe7 8. O-O {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} a6 9. b4 Ba7 10. Nbd2 g5 11. Bg3 Nh7 12. a4 $1 h5 {White must now prevent ...h4.} 13. h4 g4 14. Ne1 Nf8 15. Nc2 Ng6 16. Ne3 Be6 {[#]} 17. b5 $146 ({Predecessor:} 17. Qb3 Nd8 18. d4 c6 19. Nf5 Bxf5 20. exf5 d5 21. fxg6 dxc4 22. Nxc4 {1-0 (22) Gabrielian,A (2506) -Parfenov,V (2247) Voronezh 2018}) 17... Nd8 18. d4 Nxh4 19. dxe5 dxe5 20. Bxe5 O-O 21. Bxe6 (21. bxa6 {is more complex.} bxa6 22. Bd4 Bxc4 23. Ndxc4 Qg5 24. Re1) 21... fxe6 22. Bd4 (22. Nxg4 $11 Qg5 23. Bf6 $1 Rxf6 24. Nxf6+ {[%mdl 64] Discovered Attack} Qxf6 25. Qxh5) 22... c5 (22... Ng6 $1 $15) 23. bxc6 Nxc6 24. Bxa7 Rxa7 25. Ndc4 Rd8 26. Qb3 Raa8 27. Rfd1 Kh8 28. Rab1 Rxd1+ 29. Qxd1 Rd8 30. Qb3 Ng6 31. Rb2 ({Reject} 31. Qxb7 {[#]} Rb8 $1 $17) 31... Rd7 32. Nb6 Rd8 {The position is equal.} 33. Nbc4 Rd7 34. Nb6 Rd8 35. Nbc4 Rd7 {Weighted Error Value: White=0.10/Black=0.11} 1/2-1/2 [Event "GCT Sinquefield Cup 2021"] [Site "Saint Louis"] [Date "2021.08.23"] [Round "6.3"] [White "Xiong, Jeffery"] [Black "So, Wesley"] [Result "1/2-1/2"] [ECO "D02"] [WhiteElo "2710"] [BlackElo "2772"] [Annotator "TA"] [PlyCount "111"] [EventDate "2021.08.17"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,111,11,1,9,22,16,14,16,18,14,33,15,32,28,32,11,37,27,41,57,47,23,51, 44,33,31,29,37,28,29,34,27,36,37,39,37,37,32,30,32,35,36,39,41,46,42,41,12,18, 11,41,11,11,8,12,8,7,0,12,9,12,0,0,0,0,0,0,0,4,0,4,0,0,0,0,0,0,-3,4,0,8,0,0,0, 12,14,26,12,15,10,14,10,34,5,5,4,5,0,5,0,8,0,5,0]} 1. d4 Nf6 2. Nf3 d5 3. Bf4 e6 4. e3 Bd6 5. Nbd2 O-O 6. Bd3 {D02: 1 d4 d5 2 Nf3 sidelines, including 2... Nf6 3 g3 and 2...Nf6 3 Bf4.} c5 7. dxc5 Bxc5 8. O-O Nbd7 9. c4 {[#]} b6 $146 ({ Predecessor:} 9... Nb6 10. Rc1 dxc4 11. Nxc4 Nbd5 12. Bg3 b6 13. a3 a5 14. Qc2 Ne7 15. Rfd1 Bd7 16. Nfe5 Ra7 17. Bh4 h6 18. Qd2 g5 19. Bg3 a4 20. Qe2 Qc8 21. Nxb6 {1-0 (21) Pert,R (2416)-Fischer,D (2324) London 2018}) 10. Rc1 Bb7 11. Qe2 Rc8 12. Rfd1 Qe7 {[#] And now ...e5 would win.} 13. cxd5 e5 14. Bg5 Bxd5 15. Ba6 Rcd8 16. Nc4 Bc6 17. a3 h6 18. Bh4 Ba4 19. Re1 e4 20. Nd4 Bxd4 21. exd4 Nb8 {[#] Hoping for ...g5.} 22. Ne3 {Black must now prevent Bc4.} Nxa6 23. Qxa6 Qd7 {Threatens to win with ...Bb5.} ({Don't blunder} 23... Rxd4 $2 24. Nf5 $18) 24. Qc4 Rc8 25. Qb4 Nh5 26. Bg3 Bc6 27. d5 Bb7 ({Wrong is} 27... Bxd5 $2 28. Rcd1 $18) 28. Qxe4 Nf6 29. Qd3 Nxd5 30. Rxc8 Rxc8 31. Nf5 Re8 32. Rxe8+ Qxe8 33. h3 Qd7 34. Bb8 Bc6 35. Bg3 (35. Qe4 {looks sharper.} Kh8 36. Qg4 f6 37. Qg6 Nc7 38. f3) 35... Nf6 36. Qxd7 (36. Qc2 {keeps more tension.} Ne4 37. Qxc6 Qxf5 38. Qc7 Nxg3 39. fxg3 Qb1+ 40. Kh2) 36... Bxd7 $11 {[%mdl 4096] Endgame KBN-KBN} 37. Nd4 Nd5 38. Kf1 Ne7 39. Bb8 a6 40. Bc7 b5 41. Ke2 f6 42. Kd3 Kf7 43. Ke4 g6 44. f3 Nf5 45. Nxf5 Bxf5+ {KB-KB} 46. Kd4 b4 47. axb4 h5 48. g4 Bd7 49. Ke3 hxg4 50. hxg4 f5 51. gxf5 Bxf5 {The position is equal.} 52. Kd4 Bd7 53. Ke3 Bf5 54. Kd4 Be6 55. Ke3 Bf5 56. Kd4 {Weighted Error Value: White=0.05/Black=0.05} 1/2-1/2 [Event "GCT Sinquefield Cup 2021"] [Site "Saint Louis"] [Date "2021.08.23"] [Round "6.4"] [White "Shankland, Sam"] [Black "Rapport, Richard"] [Result "1/2-1/2"] [ECO "C45"] [WhiteElo "2709"] [BlackElo "2763"] [Annotator "TA"] [PlyCount "92"] [EventDate "2021.08.17"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 14,92,43,24,26,12,10,14,16,-11,0,0,0,-22,-18,-25,-9,-17,-16,-22,-12,-18, -7,-7,-14,-27,-25,-45,-21,-29,-19,-19,-21,-36,-18,-66,-1,-9,-13,-16,-20,-19,0, -92,-99,-99,-32,-96,-39,-39,-28,-33,-26,-35,-35,-37,0,0,0,0,0,-6,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. Qe2 Qf6 7. Nc3 Nge7 8. h4 d6 {C45: Scotch Game.} 9. Bg5 Qe6 10. O-O-O {[#]} Bd7 $146 ({Predecessor:} 10... f6 11. Be3 Bd7 12. g3 Qf7 13. Nd5 h5 14. Bxb6 Nxd5 15. exd5+ Ne5 16. Bxc7 Rc8 17. Bxd6 {1-0 (60) Acevedo Mendez,L (1845) -Levacic,M (1951) Tornelo INT 2020}) 11. Qd2 O-O-O 12. f3 h6 13. Be3 (13. Bf4 { is more complex.} f5 14. exf5 Qxf5 15. Na4 Bf2 16. Nc3) 13... Bxe3 14. Qxe3 Kb8 15. Bb5 f5 16. Qd2 fxe4 17. Rhe1 Qg6 {Black wants to play ...exf3.} 18. Rxe4 a6 19. Bf1 Rhe8 20. Rde1 Nf5 21. Bd3 {Rxe8 is the strong threat.} Rxe4 22. Bxe4 { Black must now prevent g4.} Qg3 23. h5 Re8 (23... Nfe7 {keeps more tension.} 24. Rh1 Be6 25. Kb1 Rf8 26. a3 Qe5) 24. Nd5 Qg5 (24... Nfe7 $15 25. Ne3 Qg5) 25. Qxg5 $11 hxg5 26. Kd2 {Threatens to win with Bxf5.} Ng3 27. Bg6 Rh8 28. f4 (28. Ne7 $11 {keeps the balance.}) 28... gxf4 $17 29. Nxf4 {[#]} Ne5 ({Black should play} 29... Rf8 $1 $17 {[%CAl Rf8f4]} 30. Nd3 Kc8) 30. Nc1 (30. Nc5 $15) 30... Bc6 (30... Nxg6 $17 31. hxg6 Rh4) 31. Ncd3 $15 {[#]} Nxh5 $1 32. Bxh5 Nxd3 33. Kxd3 {Strongly threatening g4.} g5 34. Bf3 gxf4 (34... Bxf3 {seems wilder.} 35. gxf3 gxf4 36. Re4 Rf8 37. a4 Kc8) 35. Bxc6 {The position is equal. } bxc6 {[%mdl 4096] Endgame KR-KR} 36. Re2 d5 37. Rf2 Rg8 38. Kd4 Rg5 39. Kc5 Kb7 40. Rxf4 Rxg2 41. Rb4+ Kc8 42. Kxc6 Rxc2+ 43. Kxd5 Rd2+ 44. Kc6 Rc2+ 45. Kd5 Rd2+ 46. Kc6 Rc2+ {Weighted Error Value: White=0.13/Black=0.10} 1/2-1/2 [Event "GCT Sinquefield Cup 2021"] [Site "Saint Louis"] [Date "2021.08.23"] [Round "6.5"] [White "Swiercz, Dariusz"] [Black "Mamedyarov, Shakhriyar"] [Result "1/2-1/2"] [ECO "C67"] [WhiteElo "2655"] [BlackElo "2782"] [Annotator "TA"] [PlyCount "83"] [EventDate "2021.08.17"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 15,83,14,22,22,21,18,14,18,36,37,32,33,48,52,29,36,30,30,32,36,64,49,43, 58,64,20,20,20,16,21,21,4,4,4,4,0,0,0,0,0,0,0,0,0,0,0,0,-5,-5,-3,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bf1 Nxe5 8. Rxe5 O-O 9. Nc3 {C67: Ruy Lopez: Berlin Defence: 4 0-0 Nxe4.} Ne8 10. Nd5 Bd6 11. Re1 Nf6 12. Nxf6+ Qxf6 13. d4 b6 {[#]} 14. Qg4 $146 ({Predecessor:} 14. Bd3 g6 15. Be4 Rb8 16. Qd3 Bb7 17. Bxb7 Rxb7 18. Bh6 Rfb8 19. Qh3 c6 20. Re4 {1-0 (41) Iordachescu,V (2644)-Aleksandrov,A (2604) Nakhchivan 2012}) 14... Bb7 15. Bd3 h6 16. Bd2 c5 17. Bc3 {[#] Strongly threatening dxc5.} Qf4 18. Qxf4 Bxf4 19. dxc5 bxc5 20. Be5 (20. g3 Bg5 21. Bb5 d5 22. Be5 a6 23. Ba4) 20... Bxe5 {The position is equal.} 21. Rxe5 d6 22. Re7 Bd5 23. Rd1 Bxa2 24. b3 {[#] Black must now prevent Ra1.} d5 $1 25. Bb5 { And now Bc6 would win.} c4 26. Ba4 {Ra1 is the strong threat.} ({Of course not } 26. Rxd5 cxb3 27. cxb3 Bxb3 $17) 26... Rab8 {[%CAl Rc4b3]} 27. Rxa7 Rfd8 { [%CAl Rc4b3]} 28. bxc4 Bxc4 29. h3 Rb2 30. Rc7 {Threatens to win with Rxc4!} Rdb8 31. Bb3 Bxb3 32. cxb3 R2xb3 33. Rxd5 $11 {[%mdl 4096] Endgame KRR-KRR} R3b7 34. Rdd7 Rxc7 35. Rxc7 {KR-KR} g5 36. g4 Kg7 37. Kg2 Kg6 38. Rc6+ Kg7 39. Rc7 Kg6 40. Rc6+ Kg7 41. Rc7 Kg6 42. Rc6+ {Weighted Error Value: White=0.03/ Black=0.02} 1/2-1/2