[Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.11"] [Round "1.1"] [White "Shankland, Sam"] [Black "Rapport, Richard"] [Result "0-1"] [ECO "E06"] [WhiteElo "2709"] [BlackElo "2763"] [Annotator "Shahid"] [PlyCount "64"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 0,64,24,28,32,6,6,-1,-8,14,-6,8,-10,-6,0,-21,-10,-16,1,-29,15,-8,14,-11, 0,-18,-17,-43,3,-124,-105,-169,-177,-213,5,-229,-229,-242,-251,-266,-264,-264, -281,-286,-288,-288,-286,-305,-322,-325,-342,-349,-352,-393,-400,-413,-428, -489,-496,-643,-638,-706,-701,-1174,-1212,-1589,-1558]} 1. d4 Nf6 2. c4 e6 3. g3 Be7 4. Bg2 d5 5. Nf3 O-O 6. b3 a5 7. O-O a4 8. Ba3 Nc6 9. e3 Ne4 10. Qc1 Bxa3 11. Nxa3 Nb4 12. Rd1 Qe7 13. Nb5 Bd7 14. a3 $2 axb3 15. axb4 Qxb4 16. Rb1 Ra2 (16... dxc4) 17. Ne1 (17. Rf1 dxc4 $19) 17... Nxf2 18. Qc3 Qxc4 19. Qxc4 dxc4 20. Nc3 Nxd1 21. Nxa2 Nxe3 22. Nc3 b5 23. Bf3 b4 24. Ne4 Nc2 25. Nc5 Bb5 26. d5 Na3 27. Rb2 exd5 28. Bxd5 Re8 29. Be4 Re5 30. Rd2 g6 31. Rd5 Rxd5 32. Bxd5 b2 0-1 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.11"] [Round "1.2"] [White "Dominguez Perez, Leinier"] [Black "Xiong, Jeffery"] [Result "1-0"] [ECO "C54"] [WhiteElo "2758"] [BlackElo "2710"] [Annotator "Shahid"] [PlyCount "75"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 O-O 6. O-O d6 7. Re1 Ne7 8. d4 Bb6 9. a4 c6 10. dxe5 Ng4 11. Rf1 Nxe5 12. Nxe5 dxe5 13. Qxd8 Rxd8 14. a5 Bc7 15. Be3 Bd7 16. Rd1 Bg4 17. Rxd8+ Rxd8 18. Nd2 Nc8 19. f3 Bd7 20. b4 Kf8 21. Kf1 Ke7 22. Ke2 f6 23. Kd1 Be6 24. Bxe6 Kxe6 25. Kc2 g6 26. Nb3 b6 27. axb6 axb6 28. Ra6 f5 29. Nd2 Kd7 30. Nc4 b5 31. Nd2 Nd6 (31... f4 32. Bc5 g5) 32. Nb3 Nb7 $2 (32... f4 33. Nc5+ Kc8) 33. Ra7 Kc8 (33... Rb8 34. exf5 gxf5 35. g4 $18) 34. Na5 Nxa5 35. bxa5 fxe4 36. fxe4 Rf8 37. Ra8+ Bb8 38. a6 1-0 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.11"] [Round "1.3"] [White "So, Wesley"] [Black "Le, Quang Liem"] [Result "1/2-1/2"] [ECO "D37"] [WhiteElo "2772"] [BlackElo "2709"] [Annotator "TA"] [PlyCount "93"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,93,21,21,27,31,25,25,25,26,25,29,29,34,26,27,14,7,0,29,11,23,0,13,0,0, -9,-10,-8,0,-6,51,43,52,53,28,0,40,-39,-37,-44,-25,-19,-30,-21,-19,-26,-20,-22, -21,-21,-26,-41,-37,-40,0,-34,-13,-18,-18,-22,-14,-9,-9,-9,-12,-9,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 e6 3. Nc3 a6 4. cxd5 exd5 5. Nf3 Nf6 6. Bg5 {D37: Queen's Gambit Declined: 5 Bf4.} Be6 7. e3 Nbd7 8. Bd3 { White has an edge.} Bd6 9. O-O c6 $1 {9...c6 scores better than 9...0-0.} 10. h3 O-O 11. Qd2 Re8 {[#]} 12. Rae1 $146 ({Predecessor:} 12. Rfe1 h6 13. Bf4 Bf8 14. a3 b5 15. Qe2 c5 16. dxc5 Nxc5 17. Rad1 Nxd3 18. Qxd3 {1/2-1/2 (29) Schaefer,U (2460)-Koentges,M (2390) GER email 2018}) 12... h6 13. Bf4 Qc7 14. a3 Rad8 15. Qc1 Nb6 16. Re2 Qc8 17. Ne5 Bf5 18. Bxf5 Qxf5 19. Qd1 Nc4 ({ Better is} 19... Qc8 $11) 20. Nxc4 $1 $14 dxc4 ({But not} 20... Bxf4 21. Na5 $16) 21. Bxd6 Rxd6 22. Qa4 (22. e4 $5 {[%CAl Re4f5]} Qd7 23. d5 $14) 22... b5 23. Qb4 (23. Qxa6 $14 Qd7 24. Rfe1) 23... Rde6 24. a4 Ne4 25. Nxe4 Qxe4 26. Qc3 Qd5 27. axb5 axb5 28. Rfe1 c5 29. dxc5 Rg6 {[%csl Gg6][%CAl Rd5g2] [#]} 30. e4 Qxc5 31. Rd1 b4 (31... Rd6 {seems wilder.} 32. Rxd6 Qxd6 33. Rd2 Qb6 34. Rd4 Rc8) 32. Qd4 (32. Rd5 {with more complications.} Qc8 33. Qxb4 Qxh3 34. g3 Ra8 35. Red2) 32... Rc6 (32... Qc7 {is interesting.} 33. Qd7 Qc6 34. Rd4 b3 35. Re3 Ra8) 33. Qxc5 {The position is equal.} Rxc5 $11 {[%mdl 4096] Endgame KRR-KRR} 34. Rd4 f5 35. e5 c3 36. bxc3 bxc3 37. Rc2 Rexe5 38. Rd3 Kf7 39. Rdxc3 Rxc3 40. Rxc3 {KR-KR} Kf6 41. h4 g5 42. hxg5+ hxg5 43. Rc6+ Re6 44. Rc5 Re5 45. Rc6+ Re6 46. Rc5 Re5 47. Rc6+ {Weighted Error Value: White=0.07/Black=0.08} 1/2-1/2 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.11"] [Round "1.4"] [White "Caruana, Fabiano"] [Black "Svidler, Peter"] [Result "1/2-1/2"] [ECO "D00"] [WhiteElo "2806"] [BlackElo "2714"] [Annotator "TA"] [PlyCount "95"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 13,95,0,0,0,0,0,0,0,-7,0,0,0,-9,0,12,19,7,15,20,22,33,25,25,11,12,6,46, 29,25,8,9,20,26,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-5,-6,-14,0,0,0,0,0,-69,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Be2 c5 7. dxc5 Nbd7 8. Nxd5 {D00: 1 d4 d5: Unusual lines.} Nxd5 9. Qxd5 Bxb2 10. O-O $1 {Strongly threatening Rab1.} Bxa1 11. Rxa1 Qa5 12. Bh6 Qxc5 13. Qb3 {[#]} Qb6 $146 ({Predecessor:} 13... b6 14. Rd1 Nf6 15. Bxf8 Kxf8 16. Bc4 Bg4 17. Bxf7 Bxf3 18. gxf3 Qh5 19. Kg2 Qg5+ {0-1 (31) Sriram,J (2388)-Ganguly,S (2650) Bhubaneswar 2018}) 14. Bxf8 Kxf8 15. Rd1 Qxb3 16. cxb3 e6 17. Rc1 Ke7 18. Nd4 a6 19. f4 Kd6 (19... e5 $5 {[%CAl Re5d4]} 20. Nc2 a5 $14) 20. Bf3 Rb8 21. b4 e5 22. Nb3 f5 23. Kf2 e4 24. Be2 Nf6 25. Rd1+ Ke7 26. a4 Be6 27. Nc5 Nd7 28. Nxe6 Kxe6 $11 {[%mdl 4096] Endgame KRB-KRN} 29. Bc4+ Ke7 30. a5 Rc8 31. Rd4 Nb8 {With the idea ...Nc6.} 32. b5 Rc5 33. bxa6 bxa6 {[#] ...Nc6 is the strong threat.} 34. Bg8 $1 Nc6 35. Rd2 (35. Rc4 $11 Rxc4 36. Bxc4) 35... h6 ({Of course not} 35... Rxa5 $6 36. Bxh7 Nb4 37. Bxg6 $14) (35... Nb4 $1 $15) 36. Bh7 {The position is equal.} g5 37. fxg5 hxg5 38. g4 $1 fxg4 39. Bxe4 Nxa5 40. Ra2 Nc4 41. Bd3 a5 42. Bxc4 Rxc4 43. Rxa5 {KR-KR} Kf6 44. Kg3 Re4 45. Ra6+ Kf5 46. Ra5+ Kf6 47. Ra6+ Kf5 48. Ra5+ {Weighted Error Value: White=0.06/Black=0.04} 1/2-1/2 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.11"] [Round "1.5"] [White "Mamedyarov, Shakhriyar"] [Black "Nakamura, Hikaru"] [Result "1/2-1/2"] [ECO "E36"] [WhiteElo "2782"] [BlackElo "2736"] [Annotator "TA"] [PlyCount "72"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 12,72,20,14,8,0,9,0,0,0,0,0,0,0,20,0,0,0,0,-29,0,0,1,-22,-26,-16,35,34, 45,0,0,0,0,0,2,0,0,0,0,0,0,-9,-18,-16,-25,-125,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 d5 7. Bg5 dxc4 {E36: Nimzo-Indian: Classical: 4...d5 5 a3.} 8. Qxc4 b6 9. Rd1 Ba6 10. Qa4 h6 { 10...h6 is better than 10...Qd7.} 11. Bh4 Qe7 12. Nf3 Rd8 13. g4 (13. e3 Bxf1 14. Rxf1 c5 15. dxc5 Rxd1+ 16. Qxd1 g5 17. Bg3 Qxc5 18. Qd8+ Kg7 19. Be5 Qc1+ 20. Ke2 Qc4+ 21. Ke1 Qc1+ 22. Ke2 Qc4+ 23. Ke1 Qc1+ 24. Ke2 {1/2-1/2 (24) Mamedyarov,S (2808)-Nakamura,H (2769) Stavanger 2018 CBM 185 [Yermolinsky,A]}) 13... Bb7 14. Bg2 Nbd7 {[#]} 15. Rg1 $146 ({Predecessor:} 15. O-O c5 16. h3 cxd4 17. Qxd4 Nc5 18. Qe5 Rxd1 19. Rxd1 Rd8 20. Rd4 Rxd4 21. Qxd4 {1/2-1/2 (83) Reuker,J (2377)-Wachinger,N (2340) Lueneburg 2018}) 15... c5 16. g5 hxg5 17. Nxg5 Bxg2 18. Rxg2 Nf8 {[#]} (18... Ne8 $11) 19. Ne4 $1 $14 {[%mdl 64] Pin} Ng6 $1 {[%CAl Rg6h4]} 20. Bg5 Qb7 21. Bxf6 Qxe4 22. f3 Qf4 $132 {[%mdl 2048] Black is not keeping still} 23. Bxd8 Rxd8 24. Qxa7 Qh4+ 25. Kf1 Nf4 {[#] ( -> ... Qh3!)} 26. Qc7 {Strongly threatening Rg4.} Nxg2 27. Kxg2 $11 {[%mdl 4096] Endgame KQR-KQR} Rd5 28. Kh1 (28. Qxb6 $11 {remains equal.} cxd4 29. a4) 28... Rxd4 ({Better is} 28... Qf2 $17 29. Qb8+ Kh7) 29. Rxd4 {The position is equal.} Qxd4 30. Qxb6 $17 {KQ-KQ} Qd1+ 31. Kg2 {Hoping for Qb8+.} Qxe2+ 32. Kg3 Qe5+ 33. Kg2 Qe2+ 34. Kg3 Qe5+ 35. Kg2 Qe2+ 36. Kg3 Qe5+ {Weighted Error Value: White=0.11/Black=0.09} 1/2-1/2 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.11"] [Round "2.1"] [White "Rapport, Richard"] [Black "Nakamura, Hikaru"] [Result "1/2-1/2"] [ECO "E36"] [WhiteElo "2763"] [BlackElo "2736"] [Annotator "TA"] [PlyCount "46"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 12,46,8,5,5,5,18,5,1,11,4,3,10,6,6,16,12,12,10,13,13,13,13,13,13,13,13, 7,20,18,15,0,0,0,15,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 d5 7. Bg5 {The position is equal.} dxc4 {E36: Nimzo-Indian: Classical: 4...d5 5 a3.} 8. Qxc4 b6 9. Rd1 Ba6 10. Qa4 h6 {The main line 10...h6 scores better than 10...Qd7.} 11. Bh4 Qe7 12. Nf3 Rd8 13. e3 Bxf1 14. Rxf1 c5 15. dxc5 {With the idea Bxf6.} Rxd1+ 16. Qxd1 g5 {[#]} 17. Bg3 $146 ({Predecessor:} 17. Nxg5 hxg5 18. Bxg5 Nbd7 19. Qf3 Rc8 20. c6 Qc5 21. Bxf6 Qc1+ 22. Ke2 Qc2+ 23. Ke1 Qc1+ 24. Ke2 Qc2+ 25. Ke1 Qc1+ {1/2-1/2 (25) Wang,H (2763)-Wei,Y (2732) Chess.com INT 2020}) 17... Qxc5 18. Qd8+ {[%mdl 64] [#] Double Attack} Kg7 { Hoping for ...Nc6.} 19. Be5 Qc1+ 20. Ke2 Qc4+ 21. Ke1 Qc1+ 22. Ke2 Qc4+ 23. Ke1 Qc1+ {A rather calm draw. Weighted Error Value: White=0.04/Black=0.00} 1/2-1/2 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.11"] [Round "2.2"] [White "Svidler, Peter"] [Black "Mamedyarov, Shakhriyar"] [Result "0-1"] [ECO "C42"] [WhiteElo "2714"] [BlackElo "2782"] [Annotator "Shahid"] [PlyCount "107"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 c6 9. Qc2 Na6 10. a3 Bg4 11. Ne5 Bf5 12. b4 c5 13. cxd5 cxd4 14. Bxe4 Rc8 15. Nc6 Bxe4 16. Qxe4 bxc6 17. dxc6 Qb6 18. Bb2 Rfd8 19. Nd2 Nb8 20. Nf3 Nxc6 21. Rad1 Re8 22. Qg4 Bf8 23. Nxd4 Ne5 24. Qh3 a5 25. Nf5 Ng6 26. Bd4 Qe6 27. Qf3 axb4 28. axb4 Rb8 29. Bc5 Ne5 30. Qe4 Nc6 31. Qf4 Bxc5 32. bxc5 Qe5 33. Qf3 Qf6 34. Rd6 Ne5 35. Qe4 Ng6 36. Nh6+ Kh8 37. Qxe8+ Rxe8 38. Rxf6 gxf6 39. Nxf7+ Kg8 40. Nh6+ Kf8 41. g3 Ne5 42. Rc1 Rc8 43. Nf5 $2 (43. Rc3) 43... Nd3 44. Ra1 Rxc5 45. Ra8+ Kf7 46. Ra7+ Kg6 47. Ne7+ Kg5 48. Ng8 $6 Kg6 49. Ne7+ Kg5 50. Rd7 Rc3 51. Nd5 Rc1+ 52. Kg2 Rc2 53. h4+ Kh6 54. Kg1 0-1 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.11"] [Round "2.3"] [White "Le, Quang Liem"] [Black "Caruana, Fabiano"] [Result "0-1"] [ECO "D02"] [WhiteElo "2709"] [BlackElo "2806"] [Annotator "Shahid"] [PlyCount "108"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] 1. d4 Nf6 2. Nf3 d5 3. Bf4 e6 4. e3 Bd6 5. Nbd2 c5 6. c3 O-O 7. Bg3 b6 8. Bd3 Ba6 9. Bxa6 Nxa6 10. Qe2 Nb8 11. Ne5 Qc7 12. O-O Nc6 13. f4 Ne7 14. Bh4 Nd7 15. Rad1 cxd4 16. exd4 Nf5 17. Bf2 Be7 18. Nd3 Nf6 19. Rde1 Rae8 20. g4 Nd6 21. Bg3 Nfe4 22. Kg2 Nxd2 23. Qxd2 Ne4 24. Qd1 Bd6 25. g5 f5 26. gxf6 $2 (26. h4) 26... Rxf6 27. Nf2 Nxf2 28. Rxf2 Bxf4 29. Rxf4 Rxf4 30. Qe2 Qf7 31. Bxf4 Qxf4 32. Rf1 Qd6 33. Qh5 Qe7 34. Qe5 b5 35. Rf3 a6 36. a3 h6 37. h3 Rf8 38. Re3 Kh8 39. Qxe6 Qg5+ 40. Rg3 Qd2+ 41. Kh1 Rf1+ 42. Rg1 Rxg1+ 43. Kxg1 Qc1+ 44. Kg2 Qxb2+ 45. Kg1 Qc1+ 46. Kf2 Qd2+ 47. Kf1 Qxc3 48. Qxd5 Qc4+ 49. Qxc4 bxc4 50. Ke2 g5 51. d5 Kg7 52. Ke3 h5 53. Kd4 g4 54. d6 Kf7 0-1 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.11"] [Round "2.4"] [White "Xiong, Jeffery"] [Black "So, Wesley"] [Result "1/2-1/2"] [ECO "C89"] [WhiteElo "2710"] [BlackElo "2772"] [Annotator "TA"] [PlyCount "130"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 26,130,27,18,35,35,27,29,24,25,26,14,11,11,20,13,13,16,10,13,13,12,8,7, 8,12,11,-5,0,0,0,-17,-17,-21,-18,-16,-5,-5,-8,-8,-8,-10,-4,-2,-2,-22,-22,-52, -52,-52,-22,-22,-17,-17,-17,-17,-17,-17,-17,-17,-17,-17,-17,-17,-17,-17,-17, -17,-17,-17,-17,-17,-8,-17,-17,-17,-17,-17,-17,-17,-17,-17,-17,-17,-17,-17,-8, -8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-34,-31,-34,-8,-8,-8,-8,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d3 Bd6 13. Re1 Bf5 14. Qf3 Qh4 {C89: Closed Ruy Lopez: Marshall Attack.} 15. g3 (15. Bxd5 Bxh2+ 16. Kf1 Bg4 $17) 15... Qh3 16. Be3 Bxd3 {White has an edge.} (16... Nxe3 17. Rxe3 Rac8 18. Nd2 $16) 17. Nd2 Bf5 {[#]} ({Don't play} 17... Nxe3 18. Rxe3 Bg6 19. Qxc6 $16) 18. Ne4 $146 ({ Predecessor:} 18. Bxd5 cxd5 19. Qxd5 Rfd8 20. Qg2 Qxg2+ 21. Kxg2 b4 22. Bd4 Bf8 23. Nb3 Be6 24. Bb6 Rdb8 25. Ba5 bxc3 {1/2-1/2 (25) Navara,D (2703)-Vitiugov,N (2751) Hamburg 2019}) 18... Bxe4 19. Qxe4 Rae8 20. Qf3 Nxe3 21. Rxe3 Rxe3 22. Qxe3 Qf5 23. Rd1 Bc5 24. Qf4 Qxf4 25. gxf4 $11 {[%mdl 4096] Endgame KRB-KRB} a5 26. a3 a4 27. Ba2 Re8 28. Rd7 Re2 29. Rd8+ $1 Bf8 30. Rd7 g6 {aiming for ... Be7.} ({Wrong is} 30... Rxb2 $2 31. Bxf7+ Kh8 32. f5 $18 (32. Rd8 g6 $15)) 31. Bxf7+ Kh8 32. b4 axb3 33. Bxb3 Bxa3 34. Rd8+ Kg7 35. Rd7+ (35. Rc8 {is more complex.} Bd6 36. Rxc6 Bxf4 37. Rb6 Be5 38. Rxb5 Bxc3 39. Rb7+) 35... Re7 36. Rxe7+ Bxe7 {KB-KB} 37. Kg2 Kf6 38. Kf3 Bd6 39. Ke4 Bc5 40. f3 Bf2 41. Bc2 c5 42. Kd5 Be3 43. h3 b4 44. cxb4 cxb4 45. Kc4 Bd2 46. Be4 Ke6 47. Kb3 Kd6 48. Kc4 Bc3 49. Bc2 Ke6 50. Be4 Kf6 51. Kb3 Kg7 52. Kc4 Kf7 53. Kb3 Kf6 54. Kc4 Bd2 55. Kb3 Bxf4 (55... h5 {looks sharper.} 56. Kc4 Bc3 57. Kd3 Be1 58. Kc4 Bd2) 56. Kxb4 Kg5 57. Bd5 Kh4 58. Be6 Kg3 59. Kc4 Kxf3 60. Kd3 g5 61. Bc8 h5 62. Bd7 g4 63. Bxg4+ {The position is equal.} hxg4 64. hxg4 Bd2 65. Kxd2 {[#] White threatens g5 and mate.} Kxg4 {Weighted Error Value: White=0.03/Black=0.03} 1/2-1/2 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.11"] [Round "2.5"] [White "Shankland, Sam"] [Black "Dominguez Perez, Leinier"] [Result "1/2-1/2"] [ECO "D27"] [WhiteElo "2709"] [BlackElo "2758"] [Annotator "TA"] [PlyCount "90"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 12,90,41,2,0,-4,-4,-23,-10,-10,0,0,0,0,0,0,0,-8,-9,-33,0,0,0,0,2,2,2,0, 8,4,16,16,16,16,9,8,8,8,8,8,8,8,18,18,27,27,27,29,33,29,45,14,17,32,61,9,13,15, 16,8,8,8,77,8,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 a6 6. O-O c5 7. e4 b5 {D27: Queen's Gambit Accepted: Classical main line: 7 e4!? and 7 a4.} 8. Be2 $1 {[%mdl 4] is more profitable than 8.Bd3 at the moment.} Nxe4 9. a4 {[#]} b4 $146 {Black has an edge.} ({ Predecessor:} 9... Be7 10. axb5 O-O 11. Bf4 Nd7 12. Ne5 Nxe5 13. dxe5 Qb6 14. Bd3 f5 15. Qe2 c4 16. Bxc4 {1-0 (45) Gelfand,B (2675)-Studer,N (2581) Biel 2021 }) 10. Nbd2 Bb7 11. Nxe4 Bxe4 12. Be3 cxd4 13. Nxd4 Nc6 14. Rc1 Nxd4 15. Bxd4 ( 15. Qxd4 {is interesting.} Qxd4 16. Bxd4 h5 17. f3 Bd5 18. Bc4) 15... Bd6 16. g3 O-O 17. Bxg7 Bxg3 18. hxg3 (18. Bxf8 $2 {[#] gets mated.} Bxh2+ $1 19. Kxh2 Qh4+ 20. Kg1 Qh1#) 18... Kxg7 19. Rc4 Qxd1 20. Rxd1 Bd5 21. Rxb4 a5 22. Rg4+ Kf6 23. b4 axb4 {Strongly threatening ...b3.} 24. Rxb4 Rfc8 25. Ra1 Ra5 26. Rb5 Rxb5 27. Bxb5 $11 {[%mdl 4096] Endgame KRB-KRB} h5 28. a5 Kg5 29. a6 h4 30. gxh4+ Kxh4 31. a7 Kg5 32. Kf1 Kf6 33. Ke1 (33. Ke2 $14) 33... Ke7 34. Kd2 Kd6 35. Kd3 Ra8 36. Kd4 Kc7 (36... e5+ $11 37. Kc3 Kc5) 37. Bd3 (37. Ke5 $16) 37... Kb6 {The position is equal.} 38. Be4 (38. Ra6+ {is more complex.} Kb7 39. Be2 Rxa7 40. Rxa7+ Kxa7 41. Ke5) 38... Bxe4 39. Kxe4 {[#] Threatens to win with Ke5.} Rxa7 40. Rxa7 Kxa7 {KPP-KP} 41. Ke5 {Threatening mate with Kf6.} Kb6 42. Kf6 Kc5 43. Kxf7 Kd5 44. f4 Ke4 45. Kxe6 {White threatens f5 and mate.} Kxf4 { Weighted Error Value: White=0.11/Black=0.07} 1/2-1/2 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.11"] [Round "3.1"] [White "Dominguez Perez, Leinier"] [Black "Rapport, Richard"] [Result "1-0"] [ECO "C54"] [WhiteElo "2758"] [BlackElo "2763"] [Annotator "TA"] [PlyCount "107"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 11,107,10,18,15,24,12,27,12,30,23,21,27,35,18,29,23,48,43,104,64,97,91, 87,98,120,115,149,147,158,156,168,156,150,149,141,135,146,152,147,127,277,278, 263,196,183,178,190,170,172,170,174,193,186,182,193,164,238,228,227,164,164, 175,186,158,152,172,148,166,162,146,146,154,143,134,127,121,155,143,459,459, 459,452,450,404,1665,1183,1599,1552,1271,1095,1503,1320,1502,1442,1136,1061, 1356,1231]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 h6 6. O-O d6 { 6...d6 scores better than 6...0-0.} 7. b4 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} Bb6 8. Nbd2 O-O 9. Re1 {White has an edge.} a6 10. a4 Ng4 11. Re2 Ne7 {[#]} 12. d4 $146 ({Predecessor:} 12. Nf1 a5 13. h3 Nf6 14. b5 Ng6 15. Ng3 Be6 16. Bxe6 fxe6 17. d4 Nd7 18. Re1 {1/2-1/2 (54) Llorach Gracia,T (2137)-Uifelean,A (2194) ICCF email 2012}) 12... Ng6 13. Re1 Qf6 { [%CAl Re5d4]} 14. Bb2 {And now h3 would win.} h5 ({Black should try} 14... Qe7 $14) 15. Bf1 c6 16. h3 Nh6 17. a5 Ba7 18. Nc4 Re8 19. Bc1 Nf4 20. Bxf4 exf4 21. e5 dxe5 22. Nfxe5 g6 23. Qf3 Kg7 24. Nd3 Rxe1 25. Rxe1 g5 (25... Be6 $16 { was worth a try.}) 26. Qxh5 Bf5 27. Qf3 Rh8 28. Nce5 Bc8 29. h4 g4 30. Qxf4 Qxh4 31. g3 Qh5 32. Bg2 Bb8 33. Qd2 {[#] Threatens to win with Nf4.} Ng8 (33... Nf5 $142) 34. Nf4 ({Don't take} 34. Kf1 $6 Nf6) 34... Qh6 35. Kf1 Nf6 36. Ke2 { aiming for Rh1.} Nh5 37. Nxh5+ Qxh5 38. Rh1 $40 {[%mdl 128] White goes for the king.} Qf5 39. Rxh8 Kxh8 40. Qd3 Qe6 {With the idea ...f6.} 41. Qe3 Qa2+ 42. Qd2 Qe6 43. Kf1 Bc7 44. Qg5 Bxe5 $4 {[%mdl 8192] [#]} (44... Qf5 $16 45. Qxf5 Bxf5 46. Nxf7+ Kg7) 45. Qxe5+ $18 ({Less strong is} 45. dxe5 Qb3 $16) 45... Kg8 46. Qxe6 Bxe6 {[%mdl 4096] Endgame KB-KB} 47. Ke2 Kg7 (47... Kf8 $142 48. Be4 Ke7) 48. Ke3 {White is clearly winning.} f5 49. Kf4 Kf6 50. Bf1 Bd7 51. Bd3 Bc8 52. Bc4 Bd7 53. d5 Be8 54. Bd3 {Weighted Error Value: White=0.09/Black=0.26} 1-0 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.11"] [Round "3.2"] [White "So, Wesley"] [Black "Shankland, Sam"] [Result "1-0"] [ECO "D12"] [WhiteElo "2772"] [BlackElo "2709"] [Annotator "TA"] [PlyCount "81"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 15,81,30,39,7,12,0,12,12,12,11,27,13,39,28,25,26,19,29,54,40,55,56,46, 39,102,100,95,90,147,157,171,121,126,124,139,129,286,164,153,160,166,115,270, 281,297,311,297,294,302,314,728,710,626,563,785,774,754,746,934,939,756,670, 5887,5218,29982,29983,29982,29983]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. Nc3 e6 6. Nh4 Be4 7. f3 Bg6 8. Qb3 Qc7 9. cxd5 {D12: Slav Defence: 3 Nf3 Nf6 4 e3 Bf5.} cxd5 10. Bd2 Nc6 11. O-O-O $5 {[%mdl 4] The position is equal. An interesting side line.} a6 12. Nxg6 hxg6 13. Kb1 Nd7 14. Rc1 Be7 15. Bd3 Rc8 16. Ne2 {[#]} O-O $146 ({Predecessor:} 16... b5 17. a4 bxa4 18. Qxa4 Nb6 19. Qxa6 Ra8 20. Qb5 Kd7 21. Qb3 Qa7 22. Bb5 Rhc8 {1/2-1/2 (42) Can,E (2600) -Sjugirov,S (2674) Moscow 2020}) 17. h4 b5 18. h5 g5 19. Ka1 Nb6 $2 (19... Na5 $14 20. Qd1 Qb6) 20. Bb1 $16 Nc4 (20... Nd7 21. Qd3 Nf6 22. e4) 21. Be1 Bf6 ( 21... Qd6 $142) 22. Qd3 {[%csl Gb1][%CAl Rd3h7]} Rfd8 23. b3 $40 {[%mdl 128] White is out for blood.} Nd6 {[#]} 24. Bb4 $1 {[%mdl 512]} Kf8 {[#]} (24... Qb8 25. Bc5) 25. Bc5 $1 e5 $2 (25... Qb8 $16 26. e4 dxe4 27. fxe4 Nxd4 28. Bxd4 ( 28. Nxd4 $2 Rxc5 29. e5 Rxe5 $19) 28... Bxd4+ 29. Nxd4 (29. Qxd4 Nc4 $18) 29... Nb7 30. Rxc8 Rxc8) 26. Nc3 (26. Qh7 $142 exd4 27. exd4 (27. Nxd4 Nxd4 28. Bxd4 Qb6 $16)) 26... Ne7 $18 27. Qh7 {Threatens to win with Qh8+.} Ke8 28. Rhe1 ({ White should try} 28. Ne2 $18) 28... Kd7 $2 {[#]} (28... Qa5 $16 {was called for.} 29. Bxd6 Rxc3 30. dxe5 Rxd6 31. exf6 gxf6) 29. dxe5 $1 Bxe5 30. Bd4 Bxd4 31. exd4 Qa5 32. Kb2 ({Weaker is} 32. Qxg7 Rxc3 33. Qxg5 Re8 $17) 32... Re8 $2 ({Much worse is} 32... b4 33. Na4 $18) (32... Rxc3 33. Rxc3 Rc8 34. Rxe7+ { [%mdl 64] Remove Defender, Deflection} Kxe7 35. Rxc8 Nxc8) 33. Qxg7 ({Not} 33. Rxe7+ Rxe7 34. Bf5+ Nxf5 $14) 33... Qb4 34. Bd3 Nc4+ 35. Bxc4 bxc4 36. Qxf7 cxb3 37. Qe6+ Kd8 38. a3 Qb8 39. Nxd5 {Intending Rxc8+ and mate.} Rxc1 40. Rxc1 Ng8 41. Qxa6 {Weighted Error Value: White=0.12/Black=0.40} 1-0 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.11"] [Round "3.3"] [White "Caruana, Fabiano"] [Black "Xiong, Jeffery"] [Result "1-0"] [ECO "B10"] [WhiteElo "2806"] [BlackElo "2710"] [Annotator "Shahid"] [PlyCount "47"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] 1. e4 c6 2. Nf3 d5 3. d3 g6 4. e5 Bg7 5. d4 f6 6. h3 Bf5 7. Bd3 Bxd3 8. cxd3 Nd7 9. Qe2 e6 10. O-O Nh6 11. exf6 Qxf6 12. Re1 Nf5 13. Nbd2 O-O 14. Nb3 Rae8 15. Bd2 e5 16. Bb4 Nd6 $4 (16... Rf7) 17. Nc5 Nxc5 18. dxe5 b6 19. exf6 Rxe2 20. Rxe2 Bxf6 21. d4 Nce4 22. Rc1 c5 23. dxc5 Rc8 24. c6 1-0 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.11"] [Round "3.4"] [White "Mamedyarov, Shakhriyar"] [Black "Le, Quang Liem"] [Result "0-1"] [ECO "C26"] [WhiteElo "2782"] [BlackElo "2709"] [Annotator "Shahid"] [PlyCount "46"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] 1. e4 e5 2. Nc3 Nf6 3. d4 exd4 4. Qxd4 Nc6 5. Qd3 Bc5 6. Bf4 O-O 7. f3 d5 8. O-O-O d4 9. Nb1 $2 (9. Na4) 9... Be6 10. a3 Qe7 11. Bg5 h6 12. Bh4 Ne5 13. Qd2 Ng6 14. Bg3 Rfd8 15. Bd3 Bb6 16. h4 c5 17. h5 c4 18. hxg6 cxd3 19. Qxd3 Rac8 20. e5 Bc4 21. Qd2 Bb3 22. exf6 Qe3 23. gxf7+ Kxf7 0-1 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.11"] [Round "3.5"] [White "Nakamura, Hikaru"] [Black "Svidler, Peter"] [Result "1-0"] [ECO "D73"] [WhiteElo "2736"] [BlackElo "2714"] [PlyCount "80"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 c6 5. Bg2 d5 6. Qb3 a5 7. cxd5 a4 8. Qd1 cxd5 9. O-O O-O 10. Nc3 Qa5 11. Bd2 Nc6 12. e3 Qa6 13. Re1 Bf5 14. Bf1 Qa7 15. h3 h5 16. Nh4 Bd7 17. Nf3 Bf5 18. a3 Rfd8 19. Bg2 Qa6 20. Bf1 Qa7 21. Rc1 Ne4 22. Nh4 Nxd2 23. Qxd2 Bc8 24. f4 Qa5 25. Qg2 e6 26. Bd3 Ne7 27. g4 hxg4 28. hxg4 Bd7 29. Rf1 Qb6 30. Nf3 Rdc8 31. Rc2 Qd8 32. Qh3 f6 33. Nh4 Be8 34. Rh2 Bf7 35. Nf3 Qd6 36. g5 f5 37. Ne5 Rxc3 38. bxc3 Qxa3 39. Qh7+ Kf8 40. Nd7+ Ke8 1-0