[Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.13"] [Round "7.1"] [White "Mamedyarov, Shakhriyar"] [Black "So, Wesley"] [Result "1/2-1/2"] [ECO "D39"] [WhiteElo "2782"] [BlackElo "2772"] [Annotator "TA"] [PlyCount "107"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 15,107,29,21,23,31,30,28,2,22,12,14,9,7,12,12,8,6,0,0,-20,37,37,29,20, 49,49,65,64,54,0,175,69,69,75,58,65,79,83,65,75,144,125,119,96,96,96,96,96,96, 96,109,74,74,74,74,29,29,23,51,29,33,23,21,22,25,8,8,2,5,0,0,0,0,0,0,-8,-8,-8, -8,-8,-8,-8,-8,-8,0,-8,-8,-8,-8,-8,8,8,8,8]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. e4 Bb4 6. Bg5 h6 7. Bxf6 Qxf6 8. Bxc4 c5 9. e5 {D39: Queen's Gambit Declined: Ragozin Defence with 5 Bg5 dxc4.} Qd8 10. O-O cxd4 11. Ne4 { White has an edge.} O-O 12. Qe2 Be7 13. Rfd1 Qa5 14. a3 (14. Rxd4 Nc6 $15) 14... Rd8 15. b4 Qb6 16. Ng3 {[%CAl Be4g3,Bg3h5,Bh5f6][%mdl 32]} Bd7 17. Rxd4 { [#]} Bc6 $146 (17... Be8 $11 18. Rxd8 Qxd8) ({Predecessor:} 17... Be8 18. Rg4 Nd7 19. Nh5 g6 20. Qe4 a5 21. Nd4 Bg5 22. h4 gxh5 23. hxg5 hxg4 24. gxh6 { 1/2-1/2 (43) Sokolov,I (2590)-Van Foreest,L (2500) Groningen 2018}) 18. Rg4 $1 $14 Bxf3 19. Qxf3 {Nh5 is the strong threat.} ({Don't play} 19. gxf3 Nc6 $17) 19... Nc6 20. Nh5 $1 g5 21. Nf6+ Kg7 22. Qf4 ({White should play} 22. Re1 $14 Rd4 23. h4 Rxg4 24. Qxg4) 22... Rh8 $2 {[#]} (22... Kf8 $1 $11 {and Black is okay.}) 23. h4 (23. b5 $1 $18 {[%CAl Rb5c6]} Na5 24. Be2) 23... Rad8 $1 24. hxg5 {aiming for g6!} h5 25. Rh4 Rd4 26. Qh2 Rxh4 27. Qxh4 Qd4 (27... Nxe5 $142 28. Be2 Ng4) 28. Qxd4 $16 Nxd4 29. Rd1 Rd8 {[#] And now ...Nf3+! would win.} 30. Kf1 ({But not} 30. Nxh5+ $2 Kg6 $19) 30... h4 31. f4 a5 32. bxa5 Bxa3 33. Rb1 Rc8 34. Bd3 ({Avoid the trap} 34. Rxb7 $2 Rxc4 35. Ne8+ Kg6 $19) 34... Rc1+ 35. Kf2 (35. Rxc1 {with more complications.} Bxc1 36. Kf2 Kf8 37. g3 Ke7 38. Be4) 35... Rxb1 36. Bxb1 $11 {[%mdl 4096] Endgame KBN-KBN} Nc6 37. Kf3 Nxa5 38. Kg4 b5 39. Kxh4 b4 40. Ne8+ Kf8 {The position is equal.} 41. Nd6 b3 42. g6 fxg6 43. Kg5 Bxd6 44. exd6 {Threatens to win with Kf6. KB-KN} Nc4 45. d7 Ke7 46. Kxg6 Ne3 47. g3 b2 48. Kh5 Kxd7 49. g4 Ke7 50. Kg5 Kf7 51. f5 $1 exf5 52. gxf5 Nxf5 53. Bxf5 b1=Q 54. Bxb1 {Weighted Error Value: White=0.09/Black=0.13} 1/2-1/2 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.13"] [Round "7.2"] [White "Caruana, Fabiano"] [Black "Rapport, Richard"] [Result "0-1"] [ECO "B47"] [WhiteElo "2806"] [BlackElo "2763"] [Annotator "TA"] [PlyCount "104"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 11,103,12,10,10,17,8,25,21,31,13,80,81,94,101,106,101,121,101,56,51,59, 42,42,46,47,0,8,21,31,0,159,150,180,177,237,225,356,369,394,353,485,454,516, 507,374,142,269,246,323,265,323,213,343,213,213,213,213,213,213,213,213,213, 213,213,214,183,240,215,215,215,270,222,222,222,222,222,222,222,222,195,203, 196,203,203,203,203,203,0,0,-29941,-10934,-29983,-29984,-29999]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 Qc7 7. Ndb5 {B47: Sicilian: Taimanov: 5 Nc3 Qc7 6 f4, 6 g3 and 6 Be2.} Qb8 8. f4 d6 9. Be3 {White has an edge.} Be7 10. g4 Nd7 (10... a6 $11 {keeps the balance.}) 11. h4 $16 O-O 12. g5 a6 13. Nd4 Nxd4 {[#]} 14. Qxd4 $146 ({Predecessor:} 14. Bxd4 b5 15. Bd3 b4 16. Ne2 e5 17. Be3 Bb7 18. f5 d5 19. Ng3 Bc5 20. Qe2 {1-0 (33) Kiolbasa,O (2204) -Warakomska,A (2343) Warsaw 2017}) 14... b5 15. a3 Bb7 16. O-O-O Nc5 17. f5 e5 18. Qd2 (18. Qb4 Nxe4 19. Nxe4 a5 20. Nf6+) 18... Nxe4 19. Nxe4 Bxe4 20. f6 $1 {[%CAl Rf6e7]} Bd8 ({Black should try} 20... gxf6 $11 21. gxf6 Bxf6) 21. fxg7 Re8 22. Rhf1 Bb6 {[#]} (22... Kxg7 {was called for.} 23. Bh5 (23. Qxd6 Qxd6 24. Rxd6 Be7 $14) 23... Re7) 23. h5 $1 $18 {aiming for g6.} Rc8 (23... Kxg7 $142 24. Rf6 Re6) 24. Bd3 Bxd3 25. Qxd3 Bxe3+ 26. Qxe3 {g6! is the strong threat.} Qc7 {[%csl Gc8][%CAl Rc7c2]} 27. Qf2 e4 28. c3 $2 (28. g6 $18 {[%CAl Rg6f7]} fxg6 29. hxg6) 28... Qe7 (28... Re8 $16) 29. Qf6 (29. g6 fxg6 (29... f6 30. Qd4 $18) 30. hxg6 $18 hxg6 (30... h6 31. Qe3) 31. Rxd6) 29... Re8 30. Rxd6 { Threatens to win with Qf5!} e3 31. Re1 e2 (31... Qe4 {was worth a try.}) 32. h6 (32. Qxe7 Rxe7 33. h6) 32... Qe3+ 33. Rd2 Re6 34. Rexe2 Qxe2 35. Rxe2 Rxe2 { [%mdl 4096] Endgame KQ-KRR} 36. Qc6 Ree8 37. Kc2 Rec8 38. Qf3 Ra7 (38... a5 $142 39. Qf5 Rab8) 39. Kb3 Re7 40. a4 Re6 41. axb5 axb5 42. Qb7 Ree8 43. Kb4 ({ Don't blunder} 43. Qxb5 $2 Rb8 $19) 43... Rb8 44. Qf3 Re6 45. b3 Rg6 46. Qf5 Re6 47. Qd5 Rg6 48. Qe5 {[%CAl Re5b8]} Rgb6 49. Ka5 $2 (49. Qc7 $18) 49... b4 $11 50. cxb4 $4 {[%mdl 8192] [#]} (50. c4 $11 R6b7 51. Ka6 Rb6+ 52. Ka5) 50... Rxb4 51. Qd5 $4 (51. g6 hxg6 52. Qh2) 51... Rxb3 {[%CAl Rb3a3]} 52. g6 Ra3# { Weighted Error Value: White=0.50/ Black=0.31} 0-1 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.13"] [Round "7.3"] [White "Nakamura, Hikaru"] [Black "Dominguez Perez, Leinier"] [Result "1-0"] [ECO "D28"] [WhiteElo "2736"] [BlackElo "2758"] [Annotator "Shahid"] [PlyCount "73"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. Nc3 a6 8. Qe2 b5 9. Bb3 Bb7 10. d5 Nxd5 (10... exd5 11. e4 (11. Rd1 Bd6) 11... d4) 11. Rd1 Qb8 $2 (11... Be7 12. e4 Nd4 13. Nxd4 Nxc3) 12. Bxd5 exd5 13. Nxd5 Bd6 14. Nb6 Ra7 15. Qd3 Be7 16. Qd7+ Kf8 17. Qf5 Kg8 18. b3 h5 19. Bb2 Rh6 20. Rac1 Qe8 21. Nd5 Bf8 22. Qg5 Qe6 23. Nf4 Qg4 24. h3 $6 (24. Rxc5 Bxc5 25. Qxc5 Qc8 (25... Ra8 26. h3 Qc8 27. Qg5) 26. Nxh5 $18) 24... Qxg5 25. Nxg5 Ba8 26. Ba3 b4 27. Bb2 a5 28. Ne4 a4 29. Nxc5 axb3 30. axb3 h4 31. Nd7 Be7 32. Nb6 Bb7 33. Rd7 Rd6 $4 34. Rxd6 $18 Bxd6 35. Nc8 Bxc8 36. Rxc6 Bc7 37. Nd5 1-0 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.13"] [Round "7.4"] [White "Svidler, Peter"] [Black "Shankland, Sam"] [Result "1/2-1/2"] [ECO "B52"] [WhiteElo "2714"] [BlackElo "2709"] [Annotator "TA"] [PlyCount "126"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,126,6,24,5,22,12,17,0,29,0,9,0,6,-11,-9,-33,-42,-31,-48,-41,-50,-91, -86,-86,-84,-84,-82,-88,-85,-85,-80,-89,-95,-69,-103,-114,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,14,2,14,14,14,9,11,0,0,2,2,0,14,14,14,14,14,14,18,27,19,19,54,14,45,22, 34,17,57,57,57,57,55,48,44,44,52,45,74,81,90,90,90,90,90,73,73,73,89,89,89,89, 90,90,90,90,90,90,90,90,90,50,28,0,90,0,83,0,90]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. c4 Nf6 5. Nc3 g6 6. O-O {B52: Sicilian: Moscow Variation with 3...Bd7.} Bg7 7. d4 cxd4 8. Nxd4 O-O 9. h3 a6 10. Bxd7 Nbxd7 11. Qe2 Rc8 12. Be3 Ne5 13. b3 b5 {[%CAl Rb5c4]} 14. f4 Ned7 {[#]} 15. Rfd1 $146 ({Predecessor:} 15. Rac1 bxc4 16. bxc4 Nb6 17. Nd5 Nxe4 18. Ne6 Ng3 19. Qg4 Nxf1 20. Bxb6 Qd7 21. Nxf8 Qxg4 22. hxg4 {1/2-1/2 (51) Delgado Ramirez,N (2541)-Mecking,H (2556) Dos Hermanas 2004}) 15... bxc4 16. bxc4 e5 17. fxe5 Nxe5 18. c5 Qa5 ({Much weaker is} 18... dxc5 $6 19. Nf5 $11) 19. Rac1 dxc5 ({Not} 19... Rxc5 20. Nb3 $1 $16) 20. Nb3 {[#]} Qb4 21. Qxa6 c4 22. Nd4 Nd3 (22... Qe7 $17 {...Nd3 is the strong threat.} 23. Bg5 Ra8) 23. Nc6 $1 $11 {[%CAl Rc6b4]} Qd6 24. Qxc4 Rxc6 25. Qxd3 Qxd3 26. Rxd3 Rfc8 27. Ne2 {aiming for Rxc6.} Rxc1+ 28. Nxc1 Nxe4 29. a4 Ra8 30. Nb3 Bc3 31. Nc5 Nxc5 32. Bxc5 {[%mdl 4096] Endgame KRB-KRB} Ba5 33. Rd7 Rc8 34. Be3 Rc4 35. Rd4 Rc8 36. Rd5 Ra8 37. Rd7 Re8 38. Kf2 Re4 39. Rd4 Re5 40. Kf3 h5 41. Rc4 {And now Rc8+ would win.} Re8 42. Bd4 Ra8 43. Ke4 Kf8 44. Kd5 Bd8 45. Kc6 {Threatens to win with Kb7.} Rc8+ $1 46. Kb5 $1 Rb8+ 47. Ka6 Ke8 48. Bc3 Rb6+ 49. Ka7 {Hoping for Rc8.} Rb3 50. a5 Rxc3 {[%mdl 64] Remove Defender} 51. Rxc3 Bxa5 $16 {KR-KB} 52. Rc6 Kd7 53. Kb7 Bb4 54. Kb6 Bd6 55. Kb5 h4 56. Ra6 Ke6 57. Kc6 g5 58. Ra2 f6 59. Re2+ Be5 60. Rf2 Bd4 61. Re2+ ({White should try} 61. Ra2 $11) 61... Be5 $1 62. Rf2 Bd4 63. Re2+ Be5 $1 {Weighted Error Value: White=0.09/Black=0.06} 1/2-1/2 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.13"] [Round "7.5"] [White "Le, Quang Liem"] [Black "Xiong, Jeffery"] [Result "0-1"] [ECO "B12"] [WhiteElo "2709"] [BlackElo "2710"] [Annotator "Shahid"] [PlyCount "40"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nd2 e6 5. Nb3 Nd7 6. Be3 Qc7 7. Nf3 f6 8. Bd3 Bg4 9. exf6 Ngxf6 10. h3 Bxf3 11. Qxf3 Bd6 12. c4 Bb4+ 13. Kf1 $6 (13. Nd2 e5 ( 13... O-O-O 14. a3 Bxd2+ 15. Bxd2 e5 16. Bf5 Kb8) (13... O-O 14. O-O e5 15. Qg3 ) 14. cxd5 O-O 15. dxc6 exd4 16. cxd7 dxe3 17. Qxe3 Rae8 18. dxe8=Q Rxe8 19. Qxe8+ Nxe8 20. Rd1 Qe5+ 21. Kf1) 13... O-O 14. Qe2 $2 (14. a3) 14... Rae8 15. g3 $2 (15. a3 Bd6) 15... e5 16. dxe5 Nxe5 17. Kg2 c5 18. Bg5 Qc6 19. Bxf6 Nxd3 20. Qxd3 dxc4+ 0-1 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.13"] [Round "8.1"] [White "Shankland, Sam"] [Black "Le, Quang Liem"] [Result "1-0"] [ECO "A13"] [WhiteElo "2709"] [BlackElo "2709"] [Annotator "Shahid"] [PlyCount "123"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Qa4+ c6 6. Qxc4 b5 7. Qc2 Bb7 8. O-O Nbd7 9. Nc3 Rc8 10. b3 Be7 11. Bb2 a6 12. Ne4 c5 13. Nxf6+ Bxf6 14. a4 Bxb2 15. Qxb2 O-O 16. axb5 axb5 17. b4 Qf6 18. Qxf6 Nxf6 19. bxc5 Rxc5 20. Rfb1 h6 21. d4 Rc7 22. Rxb5 Rfc8 23. h3 Be4 24. Rb2 Rc2 25. Rxc2 Rxc2 26. e3 Rb2 27. Rd1 Nd5 28. Rd2 Rb1+ 29. Kh2 Nc3 30. Ne5 f6 31. Nd3 Bxd3 32. Rxd3 Rc1 33. Rd2 Kf7 34. Bf3 f5 35. Rb2 Kf6 36. Rb6 Rc2 37. Kg2 Rd2 38. g4 g6 39. h4 (39. gxf5 gxf5 40. Kg3) 39... f4 40. Rc6 Nd1 $4 (40... Nb5) 41. g5+ (41. Bxd1) 41... hxg5 42. hxg5+ Kxg5 43. Bxd1 Rxd1 (43... fxe3 44. Bb3 Kf4 45. Rxe6 Rxf2+) 44. Rxe6 Kf5 45. Re5+ Kg4 46. Re6 f3+ 47. Kh2 g5 48. Re4+ Kf5 49. Re5+ Kg4 50. d5 Rf1 51. Re4+ Kf5 52. Rd4 Rxf2+ 53. Kg3 Ra2 54. Kxf3 Ra7 55. Re4 Rd7 (55... Ra2) 56. Re8 g4+ 57. Kg3 Rh7 58. e4+ Kg5 59. Re5+ Kf6 60. Rf5+ Ke7 61. Kxg4 Kd6 62. Rf6+ 1-0 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.13"] [Round "8.2"] [White "Dominguez Perez, Leinier"] [Black "Svidler, Peter"] [Result "0-1"] [ECO "C54"] [WhiteElo "2758"] [BlackElo "2714"] [Annotator "Shahid"] [PlyCount "115"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 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 $6 19. cxd5 cxd5 20. e5 (20. Ba4) 20... Ne4 21. Nxe4 dxe4 22. Bxe6 Rxe6 23. Rxe4 b6 24. Bc3 $6 (24. a6) 24... bxa5 25. bxa5 Qxd1+ 26. Rxd1 Rc6 27. Re3 Rb8 28. f4 Rb5 29. f5 Rb3 30. Rdd3 Kf8 31. e6 Rb1+ 32. Kf2 fxe6 $2 (32... Rb5) 33. fxe6 (33. Rxe6) 33... Ke8 34. Bxg7 Bxa5 35. Re2 Bb6+ 36. Kg3 h5 37. Rf3 (37. Rd5) 37... Rb4 (37... Rc4) 38. Rf8+ Ke7 39. Rf7+ Ke8 40. Rf8+ Ke7 41. Rf7+ Ke8 42. e7 Bc7+ 43. Kf2 Bb6+ 44. Kf3 Rb3+ 45. Kf4 Be3+ $3 46. Rxe3 Rc4+ 47. Bd4 $4 (47. Kf5 Rxe3 48. Rf8+ Kxe7) 47... Rxd4+ 48. Ke5 Rxe3+ 49. Kxd4 Kxf7 50. Kxe3 h4 $19 (50... Kxe7 $4 51. g4 $11) 51. Kd4 Kxe7 52. Kc5 Kf6 53. Kb5 Ke5 54. Ka6 Kf4 55. Kxa7 Kg3 56. Kb6 Kxg2 57. Kc5 Kxh3 58. Kd4 0-1 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.13"] [Round "8.3"] [White "Rapport, Richard"] [Black "Xiong, Jeffery"] [Result "1-0"] [ECO "A07"] [WhiteElo "2763"] [BlackElo "2710"] [Annotator "Shahid"] [PlyCount "77"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. O-O e5 5. d3 Nc6 6. Nc3 Nge7 7. e4 d4 8. Ne2 h6 9. c3 dxc3 10. bxc3 b6 11. Qc2 O-O 12. Rd1 Ba6 13. d4 exd4 14. cxd4 Nb4 15. Qd2 c5 16. Bb2 cxd4 17. Nexd4 Nd3 18. Ba3 Bxd4 19. Nxd4 Qxd4 20. Bxe7 Rfe8 21. e5 Rxe7 $2 (21... Qxe5 22. Bxa8 Rxa8) 22. Bxa8 Rxe5 23. Re1 Rf5 24. Re8+ Kh7 25. Rf1 Qf6 26. Be4 Ne5 27. Rd1 Bb5 28. Rc8 Bd3 29. Bg2 Ba6 30. Rc7 Nd3 31. Rf1 Ne5 32. Rd1 Nd3 33. Qc3 Qe6 34. Qb3 Qe8 35. Bc6 Qe2 36. Rxf7+ Kh8 37. Qc3+ Re5 38. Ba4 Kg8 39. Bb3 1-0 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.13"] [Round "8.4"] [White "So, Wesley"] [Black "Nakamura, Hikaru"] [Result "1/2-1/2"] [ECO "E53"] [WhiteElo "2772"] [BlackElo "2736"] [Annotator "TA"] [PlyCount "115"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 12,115,18,12,15,18,10,0,11,13,0,0,0,0,1,10,20,16,20,20,30,35,48,39,34, 23,27,34,40,31,49,43,39,41,54,38,45,32,58,37,37,39,39,26,22,31,74,74,82,28,29, 22,29,8,14,-21,5,4,6,3,5,8,10,8,12,0,0,0,25,16,23,11,22,21,54,54,50,44,54,10, 10,0,11,11,20,0,0,0,8,8,6,3,8,3,8,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. cxd5 exd5 {E53: Nimzo-Indian: Rubinstein: Main Line (4...0-0 5 Nf3 d5 6 Bd3 c5 7 0-0).} (7... cxd4 8. exd4 Nxd5 9. O-O Nc6 10. Bc2 Be7 11. Qd3 g6 12. a3 Nxc3 13. bxc3 b6 14. Re1 Bb7 15. h4 Bxh4 16. Nxh4 Qxh4 17. Re3 Ne7 18. Rg3 Nf5 19. Bg5 Qh5 20. Bd1 Nxg3 21. Qxg3 {1-0 (21) So,W (2773)-Nakamura,H (2787) Saint Louis 2016}) 8. dxc5 Nbd7 9. Bd2 Nxc5 10. Be2 Ne6 11. Qb3 Be7 12. O-O {[#]} Nc5 $146 ({Predecessor:} 12... a6 13. Rfd1 b5 14. Be1 Bb7 15. Rac1 Qb6 16. Bf1 Rac8 17. a3 g6 18. Ne2 Ne4 19. Rxc8 Rxc8 {1/2-1/2 (29) Trzcinski,I (2332)-Schreurs,B (2252) ICCF email 2017}) 13. Qc2 Nce4 14. Nxe4 Nxe4 15. Rfd1 Qb6 16. Be1 Rd8 17. a4 Bg4 18. a5 Qf6 19. Qb3 Nc5 20. Qb4 Bh5 21. Bc3 Qd6 22. Rac1 Rac8 23. Bd4 b6 24. axb6 axb6 25. Qc3 Qb8 26. Be5 ({Don't play} 26. Bxg7 Bxf3 27. Be5 {[#]} (27. Bxf3 $2 Ne6 $17) 27... Ne6 $1 $17) 26... Qb7 27. b4 (27. Bxg7 $2 Ne6 $19) 27... Nd7 28. Bc7 Bxb4 29. Qxb4 Rxc7 30. Qe7 (30. Rxc7 $16 Qxc7 31. g4) 30... Rdc8 $11 31. Rxc7 Rxc7 32. Ba6 Qc6 33. Ne5 Qc2 34. Rf1 Nf8 35. Qg5 Be2 36. Bxe2 Qxe2 37. Qd8 Qc2 38. h4 Qc5 {[#] Hoping for ...Rc8.} 39. Rd1 Qe7 (39... Rc8 {looks sharper.} 40. Qxd5 Qxd5 41. Rxd5 Rc1+ 42. Kh2 Rc5) 40. Qxe7 ({Wrong is} 40. Qxd5 $2 Rc5 $19) 40... Rxe7 41. Rxd5 {[%mdl 4096] Endgame KRN-KRN} f6 42. Nc4 Re4 43. Nxb6 Rxh4 44. f4 Rh6 45. Rd8 {Threatens to win with Nd7.} Kf7 {The position is equal.} 46. Ra8 Rh5 47. Ra7+ Kg8 48. e4 Rb5 49. Nd5 {Strongly threatening Ne7+.} (49. Nc4 {seems wilder.} Rb1+ 50. Kf2 Ne6 51. f5 Nc5 52. Nd6) 49... Rb8 (49... Ne6 { feels hotter.} 50. Kf2 Rb2+ 51. Kf3 Kf8 52. g4 Rb3+) 50. Ne7+ Kh8 51. g3 Ne6 52. Kf2 h5 53. Nf5 Rb2+ 54. Kf3 Rb3+ 55. Kg2 Rb2+ 56. Kf3 Rb3+ 57. Kf2 Rb2+ 58. Kf3 {Weighted Error Value: White=0.07/Black=0.05} 1/2-1/2 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.13"] [Round "8.5"] [White "Caruana, Fabiano"] [Black "Mamedyarov, Shakhriyar"] [Result "1-0"] [ECO "C83"] [WhiteElo "2806"] [BlackElo "2782"] [Annotator "Shahid"] [PlyCount "109"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Be3 Be7 10. c3 Qd7 11. Nbd2 Nxd2 12. Qxd2 Na5 13. Nd4 c5 14. Nxe6 fxe6 15. Bc2 Nc4 16. Qe2 Nxe5 17. Rae1 O-O 18. Qh5 Ng6 19. Bd2 Rf7 20. f4 Nf8 21. f5 e5 22. Rxe5 Bf6 23. Re2 Re8 24. Rxe8 Qxe8 25. Re1 Qd8 26. Qf3 d4 27. Be4 Kh8 28. c4 Re7 29. Bd3 Rxe1+ 30. Bxe1 Nd7 31. Bg3 Nb6 32. b3 bxc4 33. bxc4 h6 34. Qc6 Qe7 35. Qe6 Na4 36. Qxe7 Bxe7 37. Kf2 Kg8 38. Kf3 Kf7 39. Bc2 Nc3 40. a3 a5 41. Bc7 a4 42. g4 Bg5 43. Bb6 Be7 44. h4 Ke8 45. g5 hxg5 46. hxg5 Bxg5 47. Bxc5 Bf6 48. Kg4 Kd7 49. Kh5 Kc7 (49... Ne2 50. Bxa4+ Kc7) 50. Kg6 Ne2 51. Kf7 Nf4 52. Bf8 d3 53. Bxa4 Nh5 54. c5 Bb2 55. Bd1 1-0 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.13"] [Round "9.1"] [White "Nakamura, Hikaru"] [Black "Caruana, Fabiano"] [Result "1-0"] [ECO "C78"] [WhiteElo "2736"] [BlackElo "2806"] [Annotator "Shahid"] [PlyCount "85"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. c3 b5 7. Bc2 d5 8. d4 dxe4 9. dxe5 Qxd1 10. Rxd1 exf3 11. exf6 gxf6 12. Be4 Bd7 13. Nd2 fxg2 14. Nb3 Bb6 15. Nd4 Bxd4 16. cxd4 O-O-O 17. Bf4 Rhe8 18. Bxg2 Ne7 19. Rac1 c6 20. d5 Kb7 21. Rc5 cxd5 22. Bxd5+ Bc6 23. Bxc6+ Nxc6 24. Rxd8 Nxd8 25. Rc7+ Kb6 26. Rd7 b4 $6 27. Kf1 Kb5 28. Be3 Kc6 29. Ra7 Kd5 $2 (29... Re5 30. Rxa6+ (30. Ra8 Kd7 31. Ra7+ Ke6) 30... Kd7 31. Rxf6 Ra5) 30. Ra8 Rf8 31. Bh6 Re8 32. Bd2 Kc5 33. Be3+ Kb5 34. Rb8+ Kc6 35. Rxb4 Ne6 36. Rb6+ Kd5 37. Rxa6 f5 38. Ra5+ Ke4 39. Ke2 Nf4+ 40. Bxf4 Kxf4+ 41. Kf1 Rc8 42. Ra4+ Ke5 43. Rb4 1-0 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.13"] [Round "9.2"] [White "Svidler, Peter"] [Black "So, Wesley"] [Result "1/2-1/2"] [ECO "C67"] [WhiteElo "2714"] [BlackElo "2772"] [Annotator "TA"] [PlyCount "111"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 18,111,17,20,17,15,19,20,20,14,23,12,12,10,4,6,6,8,8,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-11,-6,-12,-9,-4,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-28000,-28000,-28000] } 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. d4 Bf6 10. Re1 Re8 {C67: Ruy Lopez: Berlin Defence: 4 0-0 Nxe4.} 11. Bf4 Rxe1 12. Qxe1 Ne8 {The position is equal.} 13. c3 d5 14. Bd3 g6 15. Nd2 {[%CAl Bb1d2,Bd2f3,Bf3e5][%mdl 32]} Ng7 16. Nf3 Bf5 17. Bxf5 Nxf5 18. Qe2 c6 19. Re1 Ng7 20. Be5 Bxe5 21. Nxe5 Qd6 22. Qf3 f6 23. Nd3 Re8 24. Rxe8+ Nxe8 { [#]} 25. Qg4 $146 ({Predecessor:} 25. Qe3 Kf7 26. Qh6 Kg8 27. Qe3 Kf7 28. Qh6 Kg8 29. Qe3 {1/2-1/2 (29) Carlsen,M (2847)-So,W (2770) chess24.com INT 2021}) 25... Qe7 26. Kf1 Nd6 27. Qe2 Qxe2+ 28. Kxe2 $11 {[%mdl 4096] Endgame KN-KN} h5 29. Nf4 Kf7 30. Kd3 h4 31. g3 g5 32. Ne2 Kg6 33. f3 hxg3 34. hxg3 g4 35. Nf4+ $1 ({Don't play} 35. fxg4 Kg5 $17) 35... Kf5 36. Ke2 Nc4 37. Nd3 a5 38. b3 gxf3+ (38... Na3 {feels hotter.} 39. fxg4+ Kxg4 40. Nc5 b6 41. Nd7 Nb5) 39. Kxf3 Nd2+ 40. Ke3 Ne4 41. c4 Nc3 42. cxd5 cxd5 43. Nf4 Nxa2 {[#] Hoping for ... Nb4.} 44. Nxd5 Ke6 45. Nf4+ Kd6 46. Kd2 Nb4 47. g4 Nd5 48. Nh5 b5 {[%CAl Bb7b5, Bb5a4,Ba4a3][%mdl 32]} 49. Ng3 a4 50. bxa4 bxa4 51. Kd3 a3 {[#] aiming for ... a2.} 52. Kc2 Ne3+ 53. Kb3 Nxg4 54. Ne4+ Kd5 $2 {[%mdl 8192]} (54... Kc6 $11) 55. Nxf6+ Nxf6 56. Kxa3 {[%mdl 32768] Weighted Error Value: White=0.01/Black=0. 00. An unexpected result.} 1/2-1/2 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.13"] [Round "9.3"] [White "Le, Quang Liem"] [Black "Dominguez Perez, Leinier"] [Result "1/2-1/2"] [ECO "D20"] [WhiteElo "2709"] [BlackElo "2758"] [Annotator "TA"] [PlyCount "91"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 10,91,34,19,27,27,28,21,22,20,20,20,16,-17,-14,-8,0,0,-9,-16,-16,-15,-8, -4,0,-49,-66,-68,-52,-64,-45,-90,-26,-26,21,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 dxc4 3. e4 e5 4. Nf3 Bb4+ 5. Nc3 exd4 6. Nxd4 Nd7 {D20: Queen's Gambit Accepted: 3 e3 and 3 e4.} 7. Bxc4 Ngf6 $1 8. O-O {[#] And now Bxf7+! would win. } O-O 9. Bg5 Ne5 10. Be2 c6 {[#]} 11. Kh1 $146 ({Predecessor:} 11. a3 Be7 12. h3 Qc7 13. Be3 Rd8 14. Qe1 Ng6 15. f4 Bc5 16. Rd1 Bxd4 17. Bxd4 Nxf4 18. Bxf6 Nxe2+ 19. Nxe2 Rxd1 20. Qxd1 gxf6 {0-1 (48) Gupta,A (2630)-Edouard,R (2670) Dubai 2014}) 11... h6 12. Bxf6 Qxf6 13. f4 Ng4 {next ...Ne3 is good for Black.} 14. Bxg4 Bxg4 15. Qxg4 {[#] Black must now prevent e5.} Qxd4 16. Rad1 Qc4 17. e5 Bxc3 18. bxc3 Rad8 19. h3 Qxc3 20. Rb1 Qc4 (20... b6 $17) 21. Rfc1 $11 Qe6 ( 21... Qxa2 {feels hotter.} 22. Rxb7 Rd4 23. Qg3 Qd2 24. Rxc6 Rxf4 25. e6 Rf1+) 22. Rxb7 {The position is equal.} Qxg4 23. hxg4 {[%mdl 4096] Endgame KRR-KRR} Rd4 24. g3 Rd2 25. e6 Rxa2 26. Rxc6 fxe6 {Hoping for ...Rd8.} 27. Rcc7 Rd8 { [%CAl Rd8d1]} 28. Rxg7+ Kf8 {[%CAl Rd8d1]} 29. Rgf7+ (29. Rbf7+ {seems wilder.} Ke8 30. Re7+ Kf8 31. Rgf7+ Kg8 32. Rg7+) 29... Kg8 {[%CAl Rd8d1]} 30. Rg7+ Kf8 {[%CAl Rd8d1]} 31. Rgd7 (31. Rbf7+ {is more complex.} Ke8 32. Re7+ Kf8 33. Rgf7+ Kg8 34. Rg7+) 31... Rxd7 32. Rxd7 {KR-KR} e5 33. fxe5 Re2 (33... Kg8 { is interesting.} 34. e6 Kf8 35. Rh7 a5 36. Rxh6 Ke7) 34. Rd5 Kf7 35. Ra5 Kg6 36. Kg1 Kg5 37. Kf1 Re4 38. Rxa7 {[%CAl Ra7g7]} Kxg4 39. Kf2 Rxe5 40. Ra4+ Kg5 41. Kg2 $1 h5 42. Kh3 $1 Rd5 43. Rb4 Re5 44. Ra4 Rd5 45. Rb4 Re5 46. Ra4 { Weighted Error Value: White=0.04/Black=0.05} 1/2-1/2 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.13"] [Round "9.4"] [White "Xiong, Jeffery"] [Black "Shankland, Sam"] [Result "1-0"] [ECO "A13"] [WhiteElo "2710"] [BlackElo "2709"] [Annotator "Shahid"] [PlyCount "101"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] 1. c4 Nf6 2. Nf3 e6 3. b3 d5 4. Bb2 Bd6 5. g3 O-O 6. Bg2 b6 7. O-O Bb7 8. Nc3 Nbd7 9. Rc1 a6 10. cxd5 exd5 11. e3 Re8 12. Ne2 g6 13. Qc2 c5 14. d4 Rc8 15. dxc5 bxc5 16. Rfd1 Qe7 17. Nf4 Nb6 18. Qd3 d4 19. b4 Na4 20. Ba1 Be4 21. Qd2 Bxf4 22. exf4 Nc3 23. Rxc3 dxc3 24. Qxc3 Rc6 $6 (24... Kg7) 25. Ne5 (25. bxc5) 25... Rd6 26. Rxd6 Qxd6 27. Ng4 Qd1+ 28. Bf1 Qxg4 29. Qxf6 Kf8 30. Qd6+ Kg8 31. Qf6 Kf8 32. Qg7+ Ke7 33. Bf6+ Ke6 34. Be5 Kd7 (34... Ke7 35. Qf6+ Kf8) (34... Qf5 $4 35. Bh3 $18) 35. Qxf7+ Re7 36. Qc4 (36. Qf8) 36... Rxe5 37. fxe5 Qf3 38. Bh3+ Kd8 (38... Kc7 39. Qxc5+ (39. bxc5 Qh1#) 39... Kb7 40. Qc8+ Ka7) 39. Qg8+ Kc7 40. Qc8+ Kb6 41. Qxc5+ (41. bxc5+ Ka5) 41... Kb7 42. Qe7+ Kb8 43. Qd6+ Ka7 44. Qd7+ Kb8 45. Qc8+ Ka7 46. Qc5+ Ka8 47. Qc8+ Ka7 48. Qd7+ Kb8 49. Qd6+ Ka7 50. Qd4+ Ka8 $4 (50... Kb8) 51. Qxe4+ 1-0 [Event "GCT St Louis Rapid 2021"] [Site "St. Louis"] [Date "2021.08.13"] [Round "9.5"] [White "Mamedyarov, Shakhriyar"] [Black "Rapport, Richard"] [Result "1/2-1/2"] [ECO "E17"] [WhiteElo "2782"] [BlackElo "2763"] [Annotator "TA"] [PlyCount "41"] [EventDate "2021.08.11"] [EventType "tourn"] [EventCountry "USA"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 22,41,0,-33,-29,-42,-28,-24,-46,-62,-50,-48,0,0,0,0,-4,0,0,0,0,0]} 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 e6 5. O-O Be7 6. d4 O-O 7. d5 exd5 8. Nh4 c6 9. cxd5 Nxd5 10. Nf5 Nc7 11. e4 d5 12. Re1 Bf6 {E17: Queen's Indian: 4 g3 Bb7 5 Bg2 Be7.} 13. e5 Be7 14. Qg4 {[%csl Gf5][%CAl Rg4g7] [#]} g6 {Black has an edge.} 15. Bh6 Re8 {[#]} 16. Nd2 $5 $146 {[%mdl 8] An interesting novelty.} ({ Predecessor:} 16. Nc3 Bc8 17. Nxe7+ Qxe7 18. Qa4 {1/2-1/2 (18) Radjabov,T (2747)-Gelfand,B (2733) Sochi 2007}) 16... Bf8 17. Bxf8 {The position is equal. } Rxf8 18. Nh6+ Kg7 19. Nf5+ Kg8 {[#] ...Bc8 is the strong threat.} 20. Nh6+ Kg7 21. Nf5+ $1 {Weighted Error Value: White=0.05/Black=0.05} 1/2-1/2