Кубок наций 2020 (день 2). Карякин заменил Андрейкина

Во второй игровой день сборная России сыграла матч со сборной Китая (2:2) и сборной мира (3:1). Дмитрий Андрейкин был заменен на Сергея Карякина, а Александра Горячкина на Ольгу Гиря.

Шахматы. Кубок наций 2020. Тур 3 — Кубок наций 2020. Тур 3

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[Event "FIDE Chesscom Online Nations Cup"] [White "Ding, Liren"] [Black "Nepomniachtchi, Ian"] [Site "Online"] [Round "3"] [Annotator "TA"] [Result "1-0"] [Date "2020.05.06"] [WhiteElo "2836"] [BlackElo "2778"] [PlyCount "89"]  1. d4 {} Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Be3 c5 8. Rc1 Qa5 9. Qd2 0-0 10. Nf3 Bg4 (10... Nd7 11. Bd3 e5 12. Bh6 cxd4 13. Bxg7 Kxg7 14. cxd4 Qxd2+ 15. Kxd2 exd4 16. Nxd4 b6 17. Ke3 Nc5 18. Rhd1 Bb7 19. f3 Rad8 20. Bb5 Rc8 21. Nb3 Nxb3 22. axb3 Rxc1 23. Rxc1 Rc8 {  1/2-1/2 (23) Ding,L (2811)-Nepomniachtchi,I (2776) chess.com INT 2019} )11. d5 b5 {D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 Nf3.} 12. Bxc5 Rc8 {[#]} 13. Bd4 $146 {Strongly threatening Bxg7.} ({But not} 13. Bxe7 Bxc3 14. Rxc3 Rxc3 $17 )(13. Bb4 $5 {} Qc7 14. Nd4 $16 (14. Bxb5 a5 $11 ))({Predecessor:} 13. Bb4 Qc7 14. Nd4 a5 15. Ba3 b4 16. Bb2 Qb6 17. c4 a4 18. Be2 a3 19. Ba1 Bxe2 20. Kxe2 {1-0 (80) Esipenko,A (2624)-Jones,G (2688)  Douglas 2019} )Bxf3 $1 {The position is equal.} 14. Bxg7 Bxe4 (14... Bxg2 $1 $11 15. Bxg2 Kxg7 )15. Bh6 $1 $16 {Qd4 is the strong threat.} Qb6 16. f3 Bf5 17. g4 Bd7 18. h4 $36 { White is on the roll.} Be8 19. h5 f6 (19... Nd7 $16 )20. hxg6 $18 Bxg6 21. Be3 Qd6 22. Bxb5 Nd7 23. Kf2 ({White should try  } 23. Be2 $18 )Rab8 {[#]} (23... Ne5 $16 )24. Be2 (24. Bxd7 $1 $18 Qxd7 25. c4 )Qa3 $16 25. Bd4 {Threatens to win with c4.} Rb2 26. Qe3 Ne5 (26... Qd6 $142 )27. Bxe5 fxe5 28. Qxe5 {Black must now prevent Qe6+.} Qd6 29. Qxd6 ({White should play} 29. Qe3 $16 )exd6 $11 30. Rhe1 {aiming for Kg3.  } Re8 {Hoping for ...Bd3.} 31. Rcd1 Rc8 (31... Rxa2 $14 32. f4 h5 )32. Kg3 $16 Rxc3 33. a4 a5 34. Bf1 Rb4 {[#] Now Black is done in.} (34... Rbb3 $14 )35. Re6 $1 $18 Rxa4 $2 (35... Rb8 36. Rxd6 Rf8 )36. Rxd6 Raa3 37. Rf6 Kg7 {[#]} 38. d6 $3 { White threatens d7! and mate.} Rc8 39. d7 Rd8 40. Re6 Rb3 41. Re5 Rb7 (41... a4 $142 42. Rc5 Be4 )42. Bb5 {White is clearly winning.} Bc2 43. Rd2 (43. Re8 $142 Rbb8 44. Rc1 )Bg6 44. Re8 Rbb8 45. Rde2 {Accuracy:  White = 70%, Black = 42%.} 1-0  [Event "FIDE Chesscom Online Nations Cup"] [White "Nakamura, Hikaru"] [Black "Radjabov, Teimour"] [Site "Online"] [Round "3"] [Annotator "TA"] [Result "1/2-1/2"] [Date "2020.05.06"] [WhiteElo "2829"] [BlackElo "2758"] [PlyCount "94"]  1. d4 {} Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 0-0 6. e3 Nbd7 7. c5 {7.Be2 deserves study. Played by Hikaru Nakamura in February  2020.} Nh5 {The position is equal.} 8. Be2 {D37: Queen's Gambit Declined: 5  Bf4.} Nxf4 9. exf4 b6 10. b4 $1 a5 11. a3 c6 12. 0-0 {[#]} Ba6 $146 ({  Predecessor:} 12... axb4 13. axb4 Rxa1 14. Qxa1 Qc7 15. g3 bxc5 16. bxc5 f6 17. Re1 e5 18. Bd3 g5 {1/2-1/2 (48) Grischuk,A (2766)-Karjakin,S (2782) Paris 2018} )13. Qc2 Bxe2 14. Nxe2 Ra7 15. Rab1 axb4 16. axb4 Qa8 17. Nc1 Rb8 18. Nd3 Ra2 19. Qd1 bxc5 20. bxc5 Rxb1 21. Qxb1 Bf6 22. h4 h6 23. h5 Ra4 24. Qb2 Ra2 25. Qb1 Ra4 26. Nde5 Nxe5 27. fxe5 Bd8 28. g3 Ra3 29. Kg2 Bc7 30. Rc1 Qa6 31. Qc2 Ra2 32. Qd1 Qa3 33. Rb1 Qe3 34. Qf1 Qc3 35. Rb7 Ra1 $1 {} 36. Qe2 Qc4 $1 {} 37. Rb2 Ba5 38. g4 Qxe2 39. Rxe2 $11 {  Endgame Black should prevent Rb2. KRB-KRN} Bc3 40. Re3 Rc1 41. Rd3 f6 42. Kg3 Rc2 43. Rd1 Kf7 44. Rb1 Bb2 45. Rd1 Bc3 46. Rb1 Bb2 47. Rd1 Bc3 {A rather calm  draw. Accuracy: White = 100%, Black = 100%.} 1/2-1/2      [Event "FIDE Chesscom Online Nations Cup"] [White "Aronian, Levon"] [Black "Vidit, Santosh Gujrathi"] [Site "Online"] [Round "3"] [Annotator "TA"] [Result "1-0"] [Date "2020.05.06"] [WhiteElo "2778"] [BlackElo "2636"] [PlyCount "111"]  1. Nf3 {  } d5 2. e3 c5 3. c4 d4 4. exd4 cxd4 5. Bd3 Nc6 6. 0-0 {A09: Réti  Opening: 1 Nf3 d5 2 c4.} Nf6 7. Bc2 Bg4 8. Ba4 {[#] The position is equal.} Nd7 $146 ({Predecessor:} 8... e5 9. Qb3 Bxf3 10. Qxb7 Qc8 11. Qxc8+ Rxc8 12. gxf3 Nd7 13. d3 Nc5 14. Bxc6+ Rxc6 {0-1 (32) Tutov,N (1436)-Santos,M (1498) LSS  email 2011} )9. h3 Bh5 10. d3 e5 11. Re1 {Nxe5 is the strong threat.} Be7 12. Nbd2 0-0 13. Ne4 Qc7 14. a3 a5 15. Ng3 Bg6 16. Bxc6 bxc6 17. Nxd4 exd4 18. Rxe7 Qd6 19. Re2 Nc5 20. Ne4 Nxe4 ({Better is} 20... Bxe4 $17 21. dxe4 a4 )21. dxe4 $11 Rfe8 22. f3 a4 23. c5 Qxc5 24. Bf4 Qb6 25. Rc1 c5 26. Rc4 f6 27. Qc1 (27. Rxa4 $11 Rxa4 28. Qxa4 )Ra5 $1 $17 28. Rec2 f5 29. Rxc5 $2 (29. exf5 $17 {was necessary.} Bf7 30. Rd2 (30. Rxc5 d3 $17 ))Rxc5 $2 ({Black should  play} 29... d3 $1 $19 {} 30. Bc7 Rxc5 31. Rxc5 (31. Bxb6 $2 {loses.  } Rxc2 32. Qd1 fxe4 $19 )Qa7 )30. Rxc5 $11 fxe4 31. fxe4 d3 {White must  now prevent ...Rc8.} 32. Be3 Qe6 33. Rc7 Qxe4 34. Bd2 h6 35. Qc5 {aiming for  Qa7.} Bf7 {Hoping for ...Bd5.} 36. Bc3 Qg6 {And now ...d2! would win.} 37. Re7 Rxe7 38. Qxe7 Kh7 39. Qe5 Be8 40. Kf2 Bf7 41. g4 Bb3 42. Ke3 Bc2 43. Kd2 Bb3 44. Ke3 Bc2 45. Kd2 Bb3 46. Qe7 Bc2 $2 {} (46... Bc4 $11 )47. b4 $1 $18 {White is clearly winning.} axb3 {[#]} (47... h5 $142 48. g5 Bb3 )48. Bb2 $1 h5 {[#]} 49. g5 $1 h4 50. a4 {} Kg8 51. a5 Kh7 {[#]} 52. a6 $1 {} Bd1 (52... Qxa6 53. Qxg7# )53. Kxd1 {Intending Kd2 and mate.} d2 54. Qxg7+ { Promotion} Qxg7 55. Bxg7 Kxg7 56. Kxd2 {Quite a comeback for White. Accuracy: White = 83%, Black = 77%.} 1-0  [Event "FIDE Chesscom Online Nations Cup"] [White "Artemiev, Vladislav"] [Black "Wei, Yi"] [Site "Online"] [Round "3"] [Annotator "TA"] [Result "1-0"] [Date "2020.05.06"] [WhiteElo "2769"] [BlackElo "2752"] [PlyCount "49"]  1. c4 {} g6 2. g3 Bg7 3. Bg2 Nf6 4. Nc3 0-0 5. Nf3 c5 6. 0-0 d5 7. cxd5 Nxd5 8. Qb3 e6 {A34: Symmetrical  English: 2 Nc3, lines with ...d5.} 9. d3 Nc6 10. Qb5 $5 { Exploring  less charted territory.} Qb6 {The position is equal.} 11. Qc4 {[#]} Qb4 $146 {  } ({Predecessor:} 11... Nxc3 12. bxc3 Na5 13. Qh4 Bd7 14. Bf4 f6 15. Rab1 Qa6 16. Bh6 Bxh6 17. Qxh6 Qd6 {1/2-1/2 (42) Almasi,Z (2682)-Piorun,K  (2634) Germany 2019} )12. Ne4 Qxc4 13. dxc4 Nb6 14. Rb1 Nxc4 15. b3 N4e5 (15... Nb6 $11 )16. Nxe5 $1 $14 ({Reject} 16. Nxc5 Nxf3+ 17. exf3 e5 $11 )Bxe5 17. Bh6 Rd8 (17... Bg7 $1 $14 18. Bxg7 Kxg7 )18. Rfd1 $36 { White  has strong initiative.} Rb8 19. Nxc5 {[#] Threatens to win with Bxc6.} Bc7 20. Bg5 Rxd1+ 21. Rxd1 Kg7 22. Ne4 Be5 23. Nd6 h6 24. Be3 Nb4 $2 {[#]} (24... a5 $16 )25. Bxh6+ $1 { Accuracy: White = 86%, Black = 60%.} 1-0  [Event "FIDE Chesscom Online Nations Cup"] [White "Anand, Viswanathan"] [Black "Vachier-Lagrave, Maxime"] [Site "Online"] [Round "3"] [Annotator "ChessBase"] [Result "1/2-1/2"] [Date "2020.05.06"] [WhiteElo "2751"] [BlackElo "2860"] [PlyCount "82"] [TimeControl "1500+10"]  1. d4 {[%emt 0:0:2]} d5 {[%emt 0:0:3]} 2. c4 {[%emt 0:0:3]} c6 {[%emt 0:0:0]} 3. Nf3 {[%emt 0:0:4]} Nf6 {[%emt 0:0:2]} 4. e3 {[%emt 0:0:2]} Bf5 {[%emt 0:0:2]} 5. Nc3 {[%emt 0:0:5]} e6 {[%emt 0:0:1]} 6. Nh4 {[%emt 0:0:0]} Be4 {[%emt 0:0:1]} 7. f3 {[%emt 0:0:4]} Bg6 {[%emt 0:0:2]} 8. Qb3 {[%emt 0:0:3]} Qc7 {[%emt 0:0:2]} 9. Bd2 {[%emt 0:0:5]} Be7 {[%emt 0:0:0]} 10. Rc1 {[%emt 0:0:9]} Nbd7 {[%emt 0:0:2]} 11. g3 {[%emt 0:0:3]} dxc4 {[%emt 0:0:9]} 12. Bxc4 {[%emt 0:0:3]} a6 {[%emt 0:0:12]} 13. e4 {[%emt 0:1:3] } b5 {[%emt 0:0:31]} 14. Be2 {[%emt 0:0:15]} Qb6 {[%emt 0:0:0]} 15. e5 {[%emt 0:1:44]} Ng8 {[%emt 0:1:8]} 16. Nxg6 {[%emt 0:0:6]} hxg6 {[%emt 0:0:1]} 17. Be3 {[%emt 0:0:6]} Nh6 {[%emt 0:0:2]} 18. g4 {[%emt 0:0:17] } c5 {[%emt 0:0:5]} 19. d5 {[%emt 0:0:10]} Nxe5 {[%emt 0:0:0]} 20. dxe6 {[%emt 0:0:9]} Qxe6 {[%emt 0:0:33]} 21. Qxe6 {[%emt 0:0:8]} fxe6 {[%emt 0:0:2]} 22. a4 {[%emt 0:0:2]} 0-0 {[%emt 0:5:42]} 23. 0-0 {[%emt 0:0:9] } c4 {[%emt 0:0:1]} 24. axb5 {[%emt 0:4:38]} axb5 {[%emt 0:0:0]} 25. Nxb5 {[%emt 0:0:53]} Rab8 {[%emt 0:0:2]} 26. Nd4 {[%emt 0:0:22]} Bc5 {[%emt 0:4:1]} 27. Rc2 {[%emt 0:4:36]} Rbd8 {[%emt 0:0:3]} 28. Nf5 {[%emt 0:0:38] } Nxf5 {[%emt 0:0:3]} 29. Bxc5 {[%emt 0:0:5]} Nd4 {[%emt 0:0:0]} 30. Bxd4 {[%emt 0:0:45]} Rxd4 {[%emt 0:0:2]} 31. Kg2 {[%emt 0:0:53] } Rb8 {[%emt 0:0:25]} 32. Ra1 {[%emt 0:0:33]} Nd3 {[%emt 0:0:25]} 33. Kg3 {[%emt 0:0:35] } Kh7 {[%emt 0:0:36]} 34. Bxd3 {[%emt 0:0:36]} Rxd3 {[%emt 0:0:0]} 35. Rxc4 {[%emt 0:0:55]} Rbb3 {[%emt 0:0:3]} 36. Rf1 {[%emt 0:2:2] } Rxb2 {[%emt 0:0:4]} 37. Re4 {[%emt 0:0:21]} Rdd2 {[%emt 0:1:8]} 38. h4 {[%emt 0:1:4] } Rg2+ {[%emt 0:0:29]} 39. Kf4 {[%emt 0:0:3]} Rh2 {[%emt 0:0:0]} 40. Rxe6 {[%emt 0:0:28]} Rxh4 {[%emt 0:0:1]} 41. Rfe1 {[%emt 0:0:55]} Rh3 {[%emt 0:0:8]} 1/2-1/2  [Event "FIDE Chesscom Online Nations Cup"] [White "So, Wesley"] [Black "Amin, Bassem"] [Site "Online"] [Round "3"] [Annotator "TA"] [Result "1/2-1/2"] [Date "2020.05.06"] [WhiteElo "2741"] [BlackElo "2608"] [PlyCount "120"]  1. e4 {} e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Nb8 10. d4 Nbd7 11. Nbd2 {} Bb7 12. Bc2 Re8 13. Nf1 Bf8 14. Ng3 g6 15. a4 Bg7 16. Bd3 exd4 {C95: Closed Ruy Lopez: Breyer  Variation with 10 d4.} 17. cxd4 c5 18. axb5 axb5 19. Rxa8 Bxa8 20. dxc5 Nxc5 21. Bxb5 Rf8 {} 22. e5 dxe5 23. Qxd8 Rxd8 24. Nxe5 Nd5 25. Bc4 Re8 {The position is equal.} 26. Nd3 Rxe1+ 27. Nxe1 Nb6 28. Ba2 Bd5 29. Bxd5 Nxd5 30. Ne2 {[#]} f5 $146 ({Predecessor:} 30... Nb3 31. Nd3 Nb6 32. Bf4 Nc4 33. Nec1 Nd4 34. b3 Na5 35. Nc5 f5 36. Kf1 Kf7 {1-0 (71) Stefansson,H (2502)  -Kazhgaleyev,M (2582) Batumi 2018} )31. g4 Kf7 32. gxf5 gxf5 33. Kg2 Ke6 34. Kf3 Be5 35. h4 Bf6 36. h5 Be5 37. Kg2 Bf6 38. Kf3 Be5 39. Kg2 Bf6 40. Kg3 Be5+ 41. Kf3 Bg7 42. Kg3 Be5+ 43. f4 Bg7 44. Nf3 Nb3 45. Ng5+ Ke7 46. Nxh7 Nxc1 47. Nxc1 {[#] Nd3 is the strong threat.} Bxb2 $11 { Endgame KBN-KNN} 48. Nd3 Bg7 49. Ng5 Nf6 50. Kh4 Nd5 51. Nf3 {[#] And now Kg5 would win.} Bh6 52. Nfe5 Kf6 53. Ng6 Kf7 54. Kg3 Nf6 55. Nde5+ Ke6 56. Kh4 Nd5 57. Nd3 Kf7 58. Nge5+ Kf6 59. Nd7+ Ke7 60. N7e5 Kf6 {Not much happened in this game. Accuracy:  White = 100%, Black = 100%.} 1/2-1/2  [Event "FIDE Chesscom Online Nations Cup"] [White "Yu, Yangyi"] [Black "Karjakin, Sergey"] [Site "Online"] [Round "3"] [Annotator "TA"] [Result "1/2-1/2"] [Date "2020.05.06"] [WhiteElo "2738"] [BlackElo "2709"] [PlyCount "63"]  1. e4 {} e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 0-0 8. 0-0 d5 9. exd5 cxd5 10. Qf3 c6 11. Bg5 Rb8 {The position is equal.} 12. Ne2 {C47: Scotch Four Knights and Four  Knights with 4 g3.} Bd6 13. b3 Be5 14. Rae1 h6 {[#]} 15. Bf4 $146 ({  Predecessor:} 15. Bh4 Qd6 16. Bg3 Re8 17. h3 Bd7 18. Bxe5 Qxe5 19. Qf4 Qxf4 20. Nxf4 g5 21. Ne2 {0-1 (52) Keosidi,K (2409)-Gavrilov,A (2512) Krasnoyarsk 2007} )Bg4 16. Qe3 Bxf4 17. Nxf4 Qa5 18. h3 Rbe8 19. Qc1 Bd7 20. a3 c5 21. c3 Qb6 22. b4 a5 {} 23. Qd2 axb4 24. axb4 Rb8 {} 25. Re5 cxb4 26. cxb4 Qd6 27. Rfe1 Kh8 28. Bf5 Bxf5 29. Rxf5 {} Qxb4 30. Qxb4 Rxb4 31. Nxd5 Nxd5 32. Rxd5 {Not much happened in this game. Accuracy:  White = 100%, Black = 100%.} 1/2-1/2  [Event "FIDE Chesscom Online Nations Cup"] [White "Firouzja, Alireza"] [Black "Dominguez Perez, Leinier"] [Site "Online"] [Round "3"] [Annotator "TA"] [Result "1/2-1/2"] [Date "2020.05.06"] [WhiteElo "2703"] [BlackElo "2786"] [PlyCount "123"]  1. c4 {} Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. bxc3 e4 {A28: English Opening: Four Knights  Variation.} 7. Ng5 Qe7 8. f3 exf3 9. Nxf3 0-0 10. Be2 b6 11. 0-0 Bb7 12. d3 Ng4 13. e4 f5 $1 {} 14. Bg5 Qe8 15. exf5 {[#]} h6 $146 ({Predecessor:} 15... Ne3 16. Bxe3 Qxe3+ 17. Rf2 Rae8 18. Raf1 Ne7 19. Qa4 Bc6 20. Qxa7 {  1/2-1/2 (20) Kragten,J (2336)-Bergmanolson,M (2284) ICCF email 2016} )16. Bf4 Ne3 $1 {} 17. Bxe3 $1 Qxe3+ 18. Kh1 Rxf5 19. d4 Raf8 20. Rae1 Qf4 $2 (20... Na5 $1 $11 {and Black has nothing to worry.} )21. Bd3 $18 R5f6 22. Re4 (22. Qb1 $18 Na5 23. Ne5 )Qd6 $16 {[#]} 23. c5 $1 {} Qd5 (23... bxc5 24. Qb3+ )24. Qe2 $1 $36 { Hoping for Bc4.  White has strong initiative.} Na5 25. c4 $1 {} Qh5 26. d5 c6 $2 (26... d6 27. Re7 Bc8 )27. Re5 $18 Qg4 28. h3 Qg3 29. d6 Ba6 {With the idea ...  Nb7.} 30. Qe4 {White wants to mate with Qh7+.} g6 {next ...Nb7 is good for  Black.} 31. Re7 $2 (31. Nd2 $18 {and White stays clearly on top.} Rf5 32. Rfxf5 gxf5 33. Rxf5 Rxf5 34. Qxf5 )Nb7 (31... bxc5 $16 32. Rxd7 Bc8 33. Rxa7 Qxd6 )32. Qe3 Qf4 33. Qxf4 Rxf4 34. Bxg6 (34. Rfe1 $18 )Nxc5 (34... Bxc4 $16 {was worth a try.} 35. Rc1 Bf7 )35. Rfe1 Bxc4 (35... R8f6 {might work  better.} 36. Bh7+ Kh8 )36. Ne5 $1 {Threatening mate with Bh7+.} Kh8 37. Rh7+ (37. Nxd7 Nxd7 38. Rxd7 Rf1+ 39. Rxf1 Rxf1+ 40. Kh2 Rd1 $14 )Kg8 38. Ng4 $2 {[#]} ({Only move:} 38. Re3 $1 $18 {} R8f6 39. Re7 Rxg6 40. Nxg6 )Rxg4 $1 $14 {} 39. hxg4 Be6 40. g5 (40. Rxh6 $16 Rf4 41. g5 )hxg5 $11 41. Re5 Rf6 ({Not} 41... Bxa2 $2 42. Rxg5 Rf2 43. Bf5+ Kf8 44. Bxd7 $18 )42. Bc2 g4 43. Reh5 {White threatens Rh8+ and mate.} Bd5 44. Rg5+ Kf8 45. Rxg4 Rxd6 46. Rf4+ (46. Rh8+ $11 Kf7 47. Rh7+ Kf8 48. Rh8+ Kf7 49. Rh7+ Kf8 )Ke8 $17 47. a4 Re6 48. Kg1 Re1+ 49. Kf2 Ra1 {Strongly threatening ...  Ra2.} 50. Bg6+ $1 Kd8 51. g4 Ra3 52. g5 Ne6 53. Rg4 (53. Rff7 $11 Nc5 54. Rf4 )Rf3+ $15 54. Kg1 {[#]} (54. Ke1 $15 )Nf4 $1 $19 {} 55. Bh5 (55. Rh6 {was called for.} )Ne2+ 56. Kh2 Rf1 (56... Rf2+ $19 57. Kh3 Nf4+ 58. Kh4 Nxh5 59. Kxh5 Bf3 )57. Rg2 {[#]} Bxg2 (57... Nf4 $1 $17 {} 58. Rh8+ Kc7 )58. Kxg2 $11 {The position is equal.} Rf5 59. Bxe2 {  Threatens to win with Rg7.} Rxg5+ 60. Kf2 Rd5 61. Ke3 Kc7 62. Bd3 {White used  his chance. Accuracy: White = 75%, Black = 70%.} 1/2-1/2  [Event "FIDE Chesscom Online Nations Cup"] [White "Harikrishna, Pentala"] [Black "Duda, Jan-Krzysztof"] [Site "Online"] [Round "3"] [Annotator "TA"] [Result "1/2-1/2"] [Date "2020.05.06"] [WhiteElo "2690"] [BlackElo "2774"] [PlyCount "111"]  1. d4 {} Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 a6 6. Ne5 Bb4+ {E04: Open Catalan: 5 Nf3.} 7. Nc3 Nd5 $1 {} 8. Bd2 (8. 0-0 $5 {} Nxc3 9. bxc3 Bxc3 { Double Attack} 10. Rb1 $11 )b5 9. 0-0 Bxc3 10. bxc3 Bb7 11. e4 $36 { White has  the initiative.} Nf6 12. Bg5 Nbd7 13. Nxd7 Qxd7 14. Bxf6 gxf6 15. Qh5 {[#]} 0-0-0 $146 ({Predecessor:} 15... Qe7 16. a4 e5 17. axb5 axb5 18. Rxa8+ Bxa8 19. f4 0-0 20. d5 Re8 21. Kh1 exf4 22. gxf4 {1-0 (33) Dimitrijeski,B (2241)  -Mascaro March,P (2385) Palma de Mallorca 2013} )16. Rfb1 $1 Qe7 17. a4 c6 {[#] } 18. d5 $1 { Threatens to win with dxc6.} Rhg8 (18... e5 $16 19. Qh6 (19. axb5 cxb5 20. Bh3+ Kc7 $16 )Rd6 )(18... cxd5 19. axb5 )19. dxc6 $1 $18 ({And not} 19. Qxh7 Rh8 $15 )Bxc6 20. axb5 axb5 21. Rxb5 Rg5 22. Rxg5 fxg5 23. Qxh7 e5 (23... Qb7 $142 24. Re1 f6 )24. Qf5+ Kc7 25. Bf1 f6 26. Bxc4 Qc5 27. Bf1 Qxc3 28. Ra7+ Kb6 (28... Kb8 $142 29. Rf7 Qd4 30. Qxf6 Rc8 )29. Ra6+ (29. Qh7 $142 Bd7 30. Rxd7 Rxd7 31. Qxd7 )Kb7 30. Qxf6 Rd1 {...  Rxf1+ is the strong threat.} 31. Qe7+ Kb8 {With the idea ...Rxf1+.} 32. Rxc6 (32. Qf8+ $142 Kb7 33. Qa8+ Kc7 34. Ra7+ Kb6 35. Qb8+ Kc5 36. Qf8+ Kb6 37. Qb8+ Kc5 38. Qf8+ Kb6 39. Qb8+ )Qxc6 33. Qxe5+ { Endgame KQR-KQB} Kb7 {intending ...Qc4.} 34. Kg2 Re1 (34... Rd2 $142 35. Kg1 g4 36. Qe7+ Rd7 37. Qb4+ Qb6 )35. Bd3 ({Weaker is} 35. Qxg5 Qxe4+ 36. Kg1 Qe2 $16 )Qc1 36. Qd5+ Kc7 37. e5 Qc6 (37... g4 $142 38. Qd6+ Kb7 39. Qe7+ Ka8 40. Qd8+ Kb7 41. Qe7+ Ka8 42. Qe8+ Kb7 43. Qb5+ Kc7 44. Qa5+ Kb8 45. Qb4+ Kc7 46. Qxg4 Rg1+ 47. Kh3 Qh6+ 48. Qh4 Qe6+ 49. g4 Qxe5 )38. Qxc6+ Kxc6 {KR-KB} 39. Kf3 $2 (39. f4 $18 {is the precise move to win.} gxf4 40. gxf4 )Rxe5 $16 {[#]} 40. Kg4 $1 Kd6 {[#]} 41. Bf5 $1 Re2 42. f3 (42. Kxg5 $16 {Hoping for h4.} Rxf2 43. h4 )Rf2 {The position is equal.} 43. Be4 Rxh2 44. Kxg5 Rg2 45. Kf4 Ke6 46. g4 Kf6 47. Bf5 Rg1 48. Ke3 Re1+ 49. Kf2 Rh1 (49... Ra1 {keeps more tension.} 50. f4 Ra4 51. Ke3 Ra3+ 52. Bd3 Ke6 )50. f4 $1 Rh3 51. Be4 Ra3 52. Bf3 Ra2+ 53. Kg3 Ra3 54. Kf2 Ra4 55. Kg3 $1 Ra3 56. Kf2 {White really could win this. Accuracy:  White = 81%, Black = 65%.} 1/2-1/2  [Event "FIDE Chesscom Online Nations Cup"] [White "Muzychuk, Anna"] [Black "Koneru, Humpy"] [Site "Online"] [Round "3"] [Annotator "RC"] [Result "1/2-1/2"] [Date "2020.05.06"] [WhiteElo "2533"] [BlackElo "2483"] [PlyCount "97"] [TimeControl "1500+10"]  1. e4 {[%emt 0:0:2]} e5 {[%emt 0:0:3]} 2. Nf3 {[%emt 0:0:2]} Nc6 {[%emt 0:0:2] } 3. Bb5 {[%emt 0:0:3]} a6 {[%emt 0:0:3]} 4. Ba4 {[%emt 0:0:0]} Nf6 {[%emt 0:0:1]} 5. 0-0 {[%emt 0:0:5]} Nxe4 {[%emt 0:0:3]} 6. d4 {[%emt 0:0:9] } b5 {[%emt 0:0:2]} 7. Bb3 {[%emt 0:0:2]} d5 {[%emt 0:0:1]} 8. dxe5 {[%emt 0:0:5]} Be6 {[%emt 0:0:1]} 9. Nbd2 {[%emt 0:0:20]} Be7 {[%emt 0:0:20] } 10. c3 {[%emt 0:0:6]} 0-0 {[%emt 0:0:16]} 11. Bc2 {[%emt 0:0:0]} f5 {[%emt 0:0:5]} 12. exf6 {[%emt 0:0:32]} Nxf6 {[%emt 0:0:8]} 13. Re1 {[%emt 0:0:21]} Qd7 {[%emt 0:2:0]} 14. a4 {[%emt 0:0:24]} Bf5 {[%emt 0:0:0]} 15. Bxf5 {[%emt 0:4:6]} Qxf5 {[%emt 0:0:3]} 16. axb5 {[%emt 0:0:0]} axb5 {[%emt 0:0:3]} 17. Rxa8 {[%emt 0:0:1]} Rxa8 {[%emt 0:0:1]} 18. Nb3 {[%emt 0:3:54]} Bd6 {[%emt 0:1:14]} 19. Nbd4 {[%emt 0:4:18]} Nxd4 {[%emt 0:0:8] } 20. Nxd4 {[%emt 0:0:55]} Qd7 {[%emt 0:2:21]} 21. Bg5 {[%emt 0:1:41] } Ne4 {[%emt 0:3:12]} 22. Bh4 {[%emt 0:0:9]} Bc5 {[%emt 0:0:0]} 23. f3 {[%emt 0:3:6]} Nd6 {[%emt 0:1:43]} 24. Re7 {[%emt 0:0:50]} Qc6 {[%emt 0:0:13]} 25. Bf2 {[%emt 0:3:17]} Bxd4 {[%emt 0:0:22]} 26. Bxd4 {[%emt 0:0:17] } Nf5 {[%emt 0:0:8]} 27. Re5 {[%emt 0:0:8]} Qd7 {[%emt 0:0:0]} 28. Bc5 {[%emt 0:0:25]} c6 {[%emt 0:0:7]} 29. g4 {[%emt 0:0:55]} Nh4 {[%emt 0:0:27] } 30. Re7 {[%emt 0:0:16]} Qd8 {[%emt 0:0:4]} 31. Qe2 {[%emt 0:0:0]} Ng6 {[%emt 0:0:6]} 32. Qe6+ {[%emt 0:0:38]} Kh8 {[%emt 0:0:2]} 33. Rf7 {[%emt 0:0:9]} Qe8 {[%emt 0:0:17]} 34. Qxe8+ {[%emt 0:0:12]} Rxe8 {[%emt 0:0:2] } 35. Kf2 {[%emt 0:0:5]} Ne5 {[%emt 0:0:14]} 36. Re7 {[%emt 0:0:0]} Rxe7 {[%emt 0:0:5]} 37. Bxe7 {[%emt 0:0:1]} Nd3+ {[%emt 0:0:10]} 38. Ke3 {[%emt 0:0:2]} Nxb2 {[%emt 0:0:2]} 39. Kd4 {[%emt 0:0:1]} Kg8 {[%emt 0:0:29] } 40. Kc5 {[%emt 0:0:11]} Na4+ {[%emt 0:0:13]} 41. Kxc6 {[%emt 0:0:3] } Nxc3 {[%emt 0:0:1]} 42. Bb4 {[%emt 0:0:3]} d4 {[%emt 0:0:0]} 43. Kc5 {[%emt 0:0:9]} Ne2 {[%emt 0:0:14]} 44. Kxb5 {[%emt 0:0:9]} Ng1 {[%emt 0:0:16]} 45. f4 {[%emt 0:0:20]} Nf3 {[%emt 0:0:9]} 46. Kc4 {[%emt 0:0:16] } Nxh2 {[%emt 0:0:6]} 47. g5 {[%emt 0:0:3]} Kf7 {[%emt 0:0:0]} 48. Kxd4 {[%emt 0:0:3]} h6 {[%emt 0:0:4]} 49. gxh6 {[%emt 0:0:3]} 1/2-1/2  [Event "FIDE Chesscom Online Nations Cup"] [White "Goryachkina, Aleksandra"] [Black "Ju, Wenjun"] [Site "Online"] [Round "3"] [Annotator "TA"] [Result "1/2-1/2"] [Date "2020.05.06"] [WhiteElo "2502"] [BlackElo "2610"] [PlyCount "67"]  1. Nf3 {} d5 2. d4 Nf6 3. c4 e6 4. Nc3 Be7 5. Bf4 0-0 6. e3 Nbd7 7. Be2 $1 { is  now more promising than 7.c5. Played by Hikaru Nakamura in February 2020.} dxc4 {D37: Queen's Gambit Declined: 5 Bf4.} 8. Bxc4 a6 9. a4 c5 10. 0-0 cxd4 11. Qxd4 Nb6 {[#] Hoping for ...Qxd4.} 12. Bb3 $36 { White has good  play.} Qxd4 13. Nxd4 {[#]} Nbd5 $146 ({Predecessor:} 13... Bd7 14. a5 Nbd5 15. Nxd5 Nxd5 16. Bxd5 exd5 17. Rfc1 Rac8 18. Bc7 Bf6 19. Bd6 Rxc1+ 20. Rxc1 {  1/2-1/2 (32) Georgiev,K (2671)-Berkes,F (2682) Skopje 2012} )14. Nxd5 Nxd5 15. Bxd5 exd5 16. Rfc1 Bf6 17. Rc7 Re8 18. a5 Re7 19. Rc5 Be6 20. Rac1 Bxd4 21. exd4 Rd8 22. Rc7 Kf8 {The position is equal.} 23. Bg5 f6 24. Bd2 {[#] Black  must now prevent Bb4.} Kf7 25. Bb4 Rxc7 26. Rxc7+ $11 { Endgame  KRB-KRB} Rd7 27. Rc8 g5 28. f3 h5 29. Kf2 Bf5 30. Rf8+ Kg6 31. Rg8+ Kf7 32. Rf8+ Kg6 33. Rg8+ Kf7 34. Rf8+ {Accuracy: White = 95%, Black = 100%.} 1/2-1/2  [Event "FIDE Chesscom Online Nations Cup"] [White "Saduakassova, Dinara"] [Black "Krush, Irina"] [Site "Online"] [Round "3"] [Annotator "TA"] [Result "0-1"] [Date "2020.05.06"] [WhiteElo "2412"] [BlackElo "2392"] [PlyCount "88"]  1. e4 {} c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bd7 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 h6 9. Bxf6 Qxf6 10. f4 Nc6 11. Nb3 {White wants to play e5!} Qd8 {B67: Sicilian: Richter-Rauzer: 7...a6 8 0-0-0  Bd7, lines without 9 f4 Be7.} 12. Kb1 Be7 13. g4 g5 {[#] The position is equal.  } 14. e5 $146 ({Predecessor:} 14. f5 Ne5 15. Be2 Qb6 16. Rhf1 0-0-0 17. Qe1 Kb8 18. Qg3 Rc8 19. Rd4 Rc7 20. Nd1 Rhc8 21. Ne3 Ka8 22. Rfd1 Rc6 23. c4 Be8 24. R4d2 Bf6 25. Nd4 Nd3 26. Rxd3 {1-0 (26) Rijnaarts,S (2321)-Schiffer,K (2248)  Germany 2012} )dxe5 15. fxe5 (15. fxg5 $15 hxg5 16. Ne4 )Nxe5 $17 16. Qd4 Qc7 17. Bg2 0-0-0 18. Qa7 {next Qa8+ is good for White.} Bc6 19. Bxc6 Nxc6 20. Qf2 Bd6 21. Rdf1 Rd7 22. Ne4 Bf4 23. Nf6 Re7 24. Nh5 (24. Nd2 $142 )Be5 25. Nf6 Rd8 26. Qe3 Kb8 27. a3 Bf4 (27... Na5 $19 {aiming for ...Nc4.  } 28. Nxa5 Qxa5 )28. Qh3 $2 {[#]} (28. Qe2 $17 )Ne5 $19 29. Nh5 Nc4 30. Nxf4 gxf4 31. Qxh6 e5 32. Rd1 Red7 33. Rxd7 Rxd7 ({Much less strong is} 33... Qxd7 34. h3 $19 )34. Qf8+ Rd8 35. Qb4 Rc8 36. Rc1 $2 (36. h4 Ne3 37. h5 )f3 37. Nd2 Nxd2+ 38. Qxd2 { Endgame KQR-KQR} e4 39. Re1 $2 (39. Qe3 $17 Re8 40. Rh1 )Re8 40. Qf2 $2 (40. Qe3 )Qf4 {[#] Strongly  threatening ...e3.} 41. Qd4 Qxg4 42. Qf2 Qg2 43. Qb6 f2 44. Qd6+ Ka8 {Accuracy:  White = 37%, Black = 80%.} 0-1

Шахматы. Кубок наций 2020. Тур 4 — Кубок наций 2020. Тур 4

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[Event "FIDE Chesscom Online Nations Cup"] [White "Vachier-Lagrave, Maxime"] [Black "Nakamura, Hikaru"] [Site "Online"] [Round "4"] [Annotator "TA"] [Result "1/2-1/2"] [Date "2020.05.06"] [WhiteElo "2860"] [BlackElo "2829"] [PlyCount "61"]  1. d4 {} Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 0-0 6. e3 Nbd7 7. Be2 $1 { is  recently more successful than 7.c5. Played by Hikaru Nakamura in February 2020.  } dxc4 {D37: Queen's Gambit Declined: 5 Bf4.} 8. 0-0 c5 9. dxc5 Bxc5 10. Bxc4 a6 11. Ng5 {[#]} h6 $146 ({Predecessor:} 11... b5 12. Bxe6 fxe6 13. Nxe6 Qe8 14. Nxf8 Bxf8 15. Bd6 Bb7 16. Bxf8 Nxf8 17. a4 b4 {1/2-1/2 (36) Wojtaszek,R  (2725)-Andreikin,D (2724) Jerusalem 2019} )12. Nge4 Be7 13. a4 Nxe4 14. Nxe4 Nf6 15. Qf3 Bd7 16. Nxf6+ Bxf6 17. Qxb7 Qc8 18. Qb3 $1 Ra7 19. Qa2 Bxb2 20. Rab1 Bf6 $1 21. Rfc1 Qa8 22. a5 Rc8 23. Bf1 {[#] And now Rxc8+ would win.} Rxc1 24. Rxc1 Bb5 25. Rb1 (25. Bc7 {seems wilder.} Bd8 26. Bb6 Rb7 27. Bxb5 axb5 28. Bxd8 Qxd8 29. a6 )Bd8 (25... e5 {is interesting.} 26. Bg3 Bxf1 27. Rxf1 Rb7 28. Rc1 Rb5 )26. Bxb5 {The position is equal.} axb5 27. Rxb5 Rxa5 28. Qxa5 Qxa5 (28... Bxa5 $5 29. Rb8+ $8 {[#]} Qxb8 $1 {} 30. Bxb8 Bb4 $11 )29. Rxa5 Bxa5 30. g4 Bd8 31. h3 {Accuracy: White = 84%, Black = 88%.} 1/2-1/2  [Event "FIDE Chesscom Online Nations Cup"] [White "Ding, Liren"] [Black "Anand, Viswanathan"] [Site "Online"] [Round "4"] [Annotator "TA"] [Result "1/2-1/2"] [Date "2020.05.06"] [WhiteElo "2836"] [BlackElo "2751"] [PlyCount "107"]  1. c4 {} e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Bf5 7. Qf3 Bg6 8. Bxf6 Qxf6 9. Qxf6 gxf6 10. Nf3 Nd7 {D35: Queen's Gambit Declined: Exchange Variation.} 11. Nh4 Be7 12. Ne2 {is now debated instead of 12.g3.} f5 13. g3 Bxh4 14. gxh4 Nf6 15. Nf4 Nh5 16. Kd2 Nxf4 17. exf4 {[#]} a5 $146 ({Predecessor:} 17... Ke7 18. Be2 h5 19. Rae1 Kd6 20. Bd3 Rae8 21. Re3 Rxe3 22. fxe3 a5 23. a3 b6 {  0-1 (62) Goryachkina,A (2578)-Ju,W (2584) Shanghai/Vladivostok 2020} )18. Be2 {  Strongly threatening h5.} h5 19. Rae1 Kd7 20. Bd3 Rae8 21. Re5 f6 (21... Rxe5 $14 22. fxe5 f4 )22. Re3 (22. Rxe8 {is interesting.} Kxe8 23. Rg1 Kf7 24. Kc3 Re8 25. a3 )Rxe3 23. fxe3 $16 { Endgame KRB-KRB} Ke6 24. Rg1 Bf7 25. Be2 Ke7 26. Kc3 Ra8 27. Bd3 Ke6 28. Rg7 b5 29. Be2 Rg8 (29... b4+ $14 30. Kd3 a4 )30. Rxg8 { Overworked Piece} Bxg8 31. Bxh5 {Threatens to  win with b4. KB-KB} Bf7 32. Bd1 Ke7 33. b4 a4 34. Kb2 ({White should try} 34. Kd2 $16 )Kf8 $1 $11 35. Kc3 Kg7 36. Kd2 Kh6 $1 37. Ke1 Be8 (37... Bh5 $11 )38. a3 $16 Bh5 {[#]} 39. Bc2 $1 {} Bg6 {[#]} 40. Kf2 $1 Kh5 41. Kg3 Kh6 42. Bd3 Kh5 43. Bf1 Bf7 44. Bh3 Be6 45. Bg2 Bd7 46. Bf3+ Kh6 47. h5 (47. Kg2 $16 )Be8 48. Kh4 Bd7 49. Be2 Be6 50. Bd3 Kg7 51. Bc2 Kh6 52. Bd3 Kg7 $1 53. Bc2 Kh6 54. Bd3 {Black escapes into a draw. Accuracy: White = 83%,  Black = 91%.} (54. Bd1 $14 )1/2-1/2  [Event "FIDE Chesscom Online Nations Cup"] [White "Dominguez Perez, Leinier"] [Black "Aronian, Levon"] [Site "Online"] [Round "4"] [Annotator "RC"] [Result "0-1"] [Date "2020.05.06"] [WhiteElo "2786"] [BlackElo "2778"] [PlyCount "96"] [TimeControl "1500+10"]  1. e4 {[%emt 0:0:1]} e5 {[%emt 0:0:2]} 2. Nf3 {[%emt 0:0:1]} Nf6 {[%emt 0:0:2] } 3. Nxe5 {[%emt 0:0:27]} d6 {[%emt 0:0:2]} 4. Nf3 {[%emt 0:0:0]} Nxe4 {[%emt 0:0:3]} 5. d4 {[%emt 0:0:3]} d5 {[%emt 0:0:1]} 6. Bd3 {[%emt 0:0:4]} Bd6 {[%emt 0:0:2]} 7. 0-0 {[%emt 0:0:5]} 0-0 {[%emt 0:0:0]} 8. c4 {[%emt 0:0:4]} c6 {[%emt 0:0:1]} 9. Qc2 {[%emt 0:1:9]} h6 {[%emt 0:0:4] } 10. Re1 {[%emt 0:3:9]} Be6 {[%emt 0:2:43]} 11. cxd5 {[%emt 0:2:3] } cxd5 {[%emt 0:0:7]} 12. Bxe4 {[%emt 0:0:2]} dxe4 {[%emt 0:0:0]} 13. Qxe4 {[%emt 0:0:1]} Bd5 {[%emt 0:0:16]} 14. Qg4 {[%emt 0:1:43]} Qd7 {[%emt 0:0:10]} 15. Qxd7 {[%emt 0:0:54]} Nxd7 {[%emt 0:0:3]} 16. Nc3 {[%emt 0:0:1] } Bxf3 {[%emt 0:0:8]} 17. gxf3 {[%emt 0:0:3]} Bb4 {[%emt 0:0:0]} 18. Bd2 {[%emt 0:3:7]} Rfd8 {[%emt 0:0:10]} 19. Ne4 {[%emt 0:2:19]} Bxd2 {[%emt 0:0:27]} 20. Nxd2 {[%emt 0:0:0]} Nf6 {[%emt 0:0:2]} 21. Nb3 {[%emt 0:0:53] } b6 {[%emt 0:0:5]} 22. Rac1 {[%emt 0:0:43]} Nd5 {[%emt 0:0:0]} 23. a3 {[%emt 0:0:46]} Rd6 {[%emt 0:0:6]} 24. Re4 {[%emt 0:1:52]} Rad8 {[%emt 0:0:17]} 25. Kf1 {[%emt 0:1:23]} a5 {[%emt 0:0:26]} 26. a4 {[%emt 0:0:0]} g5 {[%emt 0:1:10]} 27. Rc4 {[%emt 0:2:5]} Kg7 {[%emt 0:0:17]} 28. Re1 {[%emt 0:0:38]} Kg6 {[%emt 0:0:28]} 29. Nd2 {[%emt 0:0:51]} Nb4 {[%emt 0:0:29] } 30. Nb3 {[%emt 0:0:25]} Nd3 {[%emt 0:0:20]} 31. Re2 {[%emt 0:0:0]} Nf4 {[%emt 0:0:17]} 32. Re1 {[%emt 0:0:34]} Rf6 {[%emt 0:0:38]} 33. Nd2 {[%emt 0:1:1]} Nd3 {[%emt 0:0:20]} 34. Rb1 {[%emt 0:0:2]} Rf4 {[%emt 0:0:31] } 35. Rc6+ {[%emt 0:0:10]} Kg7 {[%emt 0:0:2]} 36. Rxb6 {[%emt 0:0:35] } Rdxd4 {[%emt 0:0:10]} 37. b3 {[%emt 0:1:10]} Nxf2 {[%emt 0:0:0]} 38. Ke2 {[%emt 0:0:6]} Rh4 {[%emt 0:0:39]} 39. Nf1 {[%emt 0:0:22]} Nd3 {[%emt 0:0:2]} 40. Rb5 {[%emt 0:0:10]} Nf4+ {[%emt 0:0:42]} 41. Kf2 {[%emt 0:0:12] } Rd3 {[%emt 0:0:1]} 42. Re5 {[%emt 0:0:33]} Rc3 {[%emt 0:0:0]} 43. Rxa5 {[%emt 0:0:14]} Rh3 {[%emt 0:0:10]} 44. Rb5 {[%emt 0:0:3]} Rhxf3+ {[%emt 0:1:3]} 45. Kg1 {[%emt 0:0:2]} Rc2 {[%emt 0:0:10]} 46. Rb6 {[%emt 0:0:18] } Rff2 {[%emt 0:1:9]} 47. a5 {[%emt 0:0:10]} Rg2+ {[%emt 0:0:0]} 48. Kh1 {[%emt 0:0:2]} Nh3 {[%emt 0:0:1]} 0-1  [Event "FIDE Chesscom Online Nations Cup"] [White "Nepomniachtchi, Ian"] [Black "Radjabov, Teimour"] [Site "Online"] [Round "4"] [Annotator "TA"] [Result "1-0"] [Date "2020.05.06"] [WhiteElo "2778"] [BlackElo "2758"] [PlyCount "93"]  1. d4 {} Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 0-0 6. e3 Nbd7 7. c5 {7.Be2 is more advanced technology. Played by Hikaru Nakamura in  February 2020.} Nh5 8. Bd3 {D37: Queen's Gambit Declined: 5 Bf4.} Nxf4 9. exf4 b6 10. b4 {The position is equal.} a5 11. a3 c6 12. 0-0 Ba6 13. Bxa6 Rxa6 14. Qe2 Qa8 {[#] ...axb4 is the strong threat.} 15. b5 cxb5 $1 16. Qxb5 Ra7 $1 {  } 17. Ne5 ({Of course not} 17. cxb6 Nxb6 18. Qd3 (18. Qxb6 Rb8 $17 )Rc8 $15 )(17. c6 $5 {} Nb8 18. Rfc1 $11 (18. Qxb6 Nxc6 19. Qb5 Rc8 $15 )(18. Ne5 Bf6 $11 ))Nxe5 18. cxb6 {[#]} Nc4 $146 ({  Predecessor:} 18... Nf3+ 19. gxf3 Rb7 20. Na4 Qb8 21. Rfb1 Bd8 22. Qxa5 Qd6 23. Rb3 Rb8 24. Rab1 Bf6 {1-0 (35) Ticleanu,S (2049)-Splichal,J (2035) ICCF email  2017} )19. bxa7 Qxa7 20. Ne2 Rb8 21. Qa4 g6 22. Ra2 Qb6 23. g3 Kg7 24. Rc1 Bf6 25. Qd1 Nb2 26. Qc2 Nc4 27. a4 Qb3 28. Qxb3 Rxb3 29. Rd1 h5 30. h4 Nd6 31. Rc1 Nc4 32. Kg2 Rb4 33. Rd1 Nd6 34. Rdd2 Nc4 35. Rd1 Nd6 $1 36. Kf1 Nc4 37. Rc1 Rb3 38. Ke1 Rb4 39. Raa1 Nd6 40. Rcb1 {Black must now prevent Rxb4.} Rc4 41. Ra2 ({  White should try} 41. Rb6 $16 Nf5 42. Rb7 )Nf5 (41... Bxd4 $14 42. Nxd4 Rxd4 )42. Rb5 Bd8 43. Rb7 Nxd4 $2 { [#] This costs Black the game.} (43... Kf8 $16 )44. Nxd4 $18 Rxd4 45. Rc2 Kf6 (45... Rc4 $142 46. Rxc4 dxc4 )46. Ke2 Rxa4 (46... Re4+ $142 47. Kf3 Rb4 48. Rxb4 axb4 )47. Rc8 {Accuracy:  White = 92%, Black = 68%.} 1-0  [Event "FIDE Chesscom Online Nations Cup"] [White "Yu, Yangyi"] [Black "Harikrishna, Pentala"] [Site "Online"] [Round "4"] [Annotator "TA"] [Result "1/2-1/2"] [Date "2020.05.06"] [WhiteElo "2738"] [BlackElo "2690"] [PlyCount "65"]  1. d4 {} Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. Qc2 Na6 {  } 7. e3 Nc7 8. Bd3 Be7 9. Nf3 Ne6 10. Bh4 g6 11. 0-0 0-0 12. Rab1 a5 {  D36: Queen's Gambit Declined: Exchange Variation: Main line (5 Bg5 c6 6 Qc2).} 13. a3 {} Ng7 14. b4 axb4 15. axb4 Bf5 16. b5 Bxd3 17. Qxd3 Nf5 18. Bxf6 Bxf6 19. bxc6 bxc6 20. Rfc1 Qd6 21. Qc2 {[#]} Rfb8 $146 ({Predecessor:} 21... Ra6 22. Na4 Rfa8 23. Nc5 Ra2 24. Rb2 Ra1 25. g3 Qe7 26. Kg2 Nd6 27. Nd2 Rxc1 28. Qxc1 {1-0 (80) Dimitrov,V (2387)-Vaibhav,A (1957)  Backi Petrovac 2016} )22. Rxb8+ Rxb8 23. Na4 Rb4 24. Nc5 Rc4 {The position is  equal.} 25. Qb1 (25. Qd1 {seems wilder.} Rxc1 26. Qxc1 Ng7 27. Nd3 Ne6 28. g3 )Rxc1+ 26. Qxc1 h5 27. h3 Ng7 28. Nd3 Ne6 29. Nd2 Kg7 30. Nb3 Qb8 31. Nbc5 Nxc5 32. Nxc5 h4 33. Nd7 {Accuracy: White = 94%, Black = 93%.} 1/2-1/2  [Event "FIDE Chesscom Online Nations Cup"] [White "Giri, Anish"] [Black "So, Wesley"] [Site "Online"] [Round "4"] [Annotator "RC"] [Result "1/2-1/2"] [Date "2020.05.06"] [WhiteElo "2731"] [BlackElo "2741"] [PlyCount "175"] [TimeControl "1500+10"]  1. d4 {[%emt 0:0:1]} Nf6 {[%emt 0:0:4]} 2. c4 {[%emt 0:0:2]} e6 {[%emt 0:0:0]} 3. Nf3 {[%emt 0:0:4]} d5 {[%emt 0:0:4]} 4. g3 {[%emt 0:0:9]} Be7 {[%emt 0:0:6]} 5. Bg2 {[%emt 0:0:4]} 0-0 {[%emt 0:0:1]} 6. 0-0 {[%emt 0:0:0]} dxc4 {[%emt 0:0:3]} 7. Qc2 {[%emt 0:0:1]} a6 {[%emt 0:0:2]} 8. a4 {[%emt 0:0:1]} Bd7 {[%emt 0:0:2]} 9. Qxc4 {[%emt 0:0:2]} Bc6 {[%emt 0:0:0]} 10. Bg5 {[%emt 0:0:3]} Bd5 {[%emt 0:0:3]} 11. Qc2 {[%emt 0:0:23]} Be4 {[%emt 0:0:2]} 12. Qc1 {[%emt 0:0:17]} h6 {[%emt 0:0:2]} 13. Bxf6 {[%emt 0:0:2] } Bxf6 {[%emt 0:0:0]} 14. Nbd2 {[%emt 0:0:34]} Bxf3 {[%emt 0:0:0]} 15. Nxf3 {[%emt 0:0:4]} a5 {[%emt 0:0:3]} 16. Qc3 {[%emt 0:1:9]} Nc6 {[%emt 0:1:4]} 17. Rad1 {[%emt 0:0:3]} Nb4 {[%emt 0:0:48]} 18. Ne5 {[%emt 0:1:28] } c6 {[%emt 0:1:55]} 19. e4 {[%emt 0:0:3]} Bxe5 {[%emt 0:0:0]} 20. dxe5 {[%emt 0:0:3]} Qb6 {[%emt 0:0:1]} 21. Rd6 {[%emt 0:0:47]} Na6 {[%emt 0:0:35]} 22. Rfd1 {[%emt 0:1:38]} Qc5 {[%emt 0:0:24]} 23. Qxc5 {[%emt 0:1:23] } Nxc5 {[%emt 0:0:3]} 24. R1d4 {[%emt 0:0:0]} Rfc8 {[%emt 0:0:0]} 25. Bf1 {[%emt 0:5:56]} b5 {[%emt 0:7:27]} 26. axb5 {[%emt 0:0:3]} cxb5 {[%emt 0:0:0]} 27. Bxb5 {[%emt 0:0:1]} Rab8 {[%emt 0:0:4]} 28. Ba6 {[%emt 0:0:3] } Nxa6 {[%emt 0:0:30]} 29. Rxa6 {[%emt 0:0:3]} Rxb2 {[%emt 0:0:0]} 30. Ra7 {[%emt 0:2:23]} Rb5 {[%emt 0:0:41]} 31. Rdd7 {[%emt 0:1:19]} Rf8 {[%emt 0:0:2]} 32. Rd4 {[%emt 0:0:52]} Rxe5 {[%emt 0:1:37]} 33. Ra4 {[%emt 0:0:7] } Rb8 {[%emt 0:0:1]} 34. R7xa5 {[%emt 0:0:7]} Rxa5 {[%emt 0:0:0]} 35. Rxa5 {[%emt 0:0:0]} Rb4 {[%emt 0:0:0]} 36. h4 {[%emt 0:0:28]} Rxe4 {[%emt 0:0:3]} 37. Kg2 {[%emt 0:0:1]} g6 {[%emt 0:0:7]} 38. Rb5 {[%emt 0:0:6] } Kg7 {[%emt 0:0:2]} 39. Ra5 {[%emt 0:0:1]} Rd4 {[%emt 0:0:0]} 40. Ra7 {[%emt 0:0:2]} Kf6 {[%emt 0:0:8]} 41. Ra8 {[%emt 0:0:3]} Kf5 {[%emt 0:0:16]} 42. Rh8 {[%emt 0:0:10]} h5 {[%emt 0:0:37]} 43. Ra8 {[%emt 0:0:0]} e5 {[%emt 0:0:9]} 44. Ra5 {[%emt 0:0:11]} Rd2 {[%emt 0:0:5]} 45. Rb5 {[%emt 0:0:9]} Ra2 {[%emt 0:0:9]} 46. Rc5 {[%emt 0:0:3]} f6 {[%emt 0:0:0]} 47. Rb5 {[%emt 0:0:6]} Ra4 {[%emt 0:0:9]} 48. Rc5 {[%emt 0:0:15]} g5 {[%emt 0:0:13]} 49. hxg5 {[%emt 0:0:3]} Kxg5 {[%emt 0:0:6]} 50. Rb5 {[%emt 0:0:34] } Re4 {[%emt 0:0:4]} 51. Rb8 {[%emt 0:0:9]} Rg4 {[%emt 0:0:0]} 52. Kf3 {[%emt 0:0:34]} Ra4 {[%emt 0:0:24]} 53. Rg8+ {[%emt 0:0:58]} Kf5 {[%emt 0:0:2]} 54. Rh8 {[%emt 0:0:17]} Ra3+ {[%emt 0:0:20]} 55. Kg2 {[%emt 0:0:8] } Kg6 {[%emt 0:0:0]} 56. Rg8+ {[%emt 0:0:3]} Kh7 {[%emt 0:0:0]} 57. Rb8 {[%emt 0:0:3]} Ra2 {[%emt 0:0:6]} 58. Re8 {[%emt 0:0:18]} Kg6 {[%emt 0:0:8]} 59. Rg8+ {[%emt 0:0:5]} Kf5 {[%emt 0:0:6]} 60. Rh8 {[%emt 0:0:4] } Kg6 {[%emt 0:0:21]} 61. Rg8+ {[%emt 0:0:2]} Kh7 {[%emt 0:0:0]} 62. Re8 {[%emt 0:0:2]} Rb2 {[%emt 0:0:2]} 63. Rf8 {[%emt 0:0:35]} Kg7 {[%emt 0:0:14]} 64. Re8 {[%emt 0:0:2]} Rb4 {[%emt 0:0:19]} 65. Kf3 {[%emt 0:0:29] } Ra4 {[%emt 0:0:27]} 66. Rb8 {[%emt 0:0:36]} Kg6 {[%emt 0:0:0]} 67. Rg8+ {[%emt 0:0:7]} Kf5 {[%emt 0:0:1]} 68. Rh8 {[%emt 0:0:4]} e4+ {[%emt 0:0:1]} 69. Kg2 {[%emt 0:0:15]} Kg6 {[%emt 0:0:1]} 70. Rg8+ {[%emt 0:0:9] } Kf7 {[%emt 0:0:2]} 71. Rh8 {[%emt 0:0:48]} Ra5 {[%emt 0:0:0]} 72. Kf1 {[%emt 0:0:27]} Rf5 {[%emt 0:0:6]} 73. Ke2 {[%emt 0:0:21]} Re5 {[%emt 0:1:41]} 74. Ke3 {[%emt 0:0:27]} Kg7 {[%emt 0:0:2]} 75. Ra8 {[%emt 0:0:14] } Kg6 {[%emt 0:0:1]} 76. Kf4 {[%emt 0:0:14]} Rf5+ {[%emt 0:0:0]} 77. Kxe4 {[%emt 0:0:9]} Rxf2 {[%emt 0:0:2]} 78. Rg8+ {[%emt 0:0:7]} Kh6 {[%emt 0:0:11]} 79. Rh8+ {[%emt 0:0:4]} Kg6 {[%emt 0:0:1]} 80. Rg8+ {[%emt 0:0:1] } Kh7 {[%emt 0:0:2]} 81. Ra8 {[%emt 0:0:6]} Rf1 {[%emt 0:0:0]} 82. Rb8 {[%emt 0:0:6]} f5+ {[%emt 0:0:13]} 83. Ke3 {[%emt 0:0:2]} Kg6 {[%emt 0:0:3]} 84. Rg8+ {[%emt 0:0:20]} Kh7 {[%emt 0:0:3]} 85. Ra8 {[%emt 0:0:12] } Kg6 {[%emt 0:0:2]} 86. Rg8+ {[%emt 0:0:3]} Kh7 {[%emt 0:0:0]} 87. Ra8 {[%emt 0:0:1]} Kg6 {[%emt 0:0:0]} 88. Rg8+ {[%emt 0:0:2]} 1/2-1/2  [Event "FIDE Chesscom Online Nations Cup"] [White "Karjakin, Sergey"] [Black "Cori, Jorge"] [Site "Online"] [Round "4"] [Annotator "TA"] [Result "1-0"] [Date "2020.05.06"] [WhiteElo "2709"] [BlackElo "2599"] [PlyCount "75"]  1. e4 {} c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. Nxc6 {B47:  Sicilian: Taimanov: 5 Nc3 Qc7 6 f4, 6 g3 and 6 Be2.} bxc6 8. Qd3 Nf6 9. Qg3 {  White is slightly better.} Qxg3 10. hxg3 d5 11. g4 {[#]} Bb4 $146 ({  Predecessor:} 11... Bb7 12. Rh3 Nxe4 13. Nxe4 dxe4 14. Be3 Rd8 15. Bd2 Bd6 16. Rb3 Rd7 17. 0-0-0 f6 {1/2-1/2 (94) Hameister,R (2421)-Dedina,M (2354) ICCF  email 2017} )12. Bd2 d4 13. e5 Nd7 14. Ne4 Bxd2+ 15. Nxd2 c5 16. Nc4 Ke7 (16... a5 $11 )17. Bf3 (17. Na5 $16 )Rb8 18. 0-0-0 Nb6 19. Na5 {Hoping for Nc6+.  } Bd7 20. g5 Na4 $1 21. Bb7 Kd8 22. Rd3 Kc7 $1 { aiming for ...Kb6.  } 23. Rf3 {[#]} (23. Rb3 $1 $11 {keeps the balance.} )Be8 (23... Kb6 $1 $17 {} 24. Rxf7 { Double Attack} Be8 25. Nc4+ Ka7 26. Rxg7 Rxb7 27. Rxb7+ Kxb7 28. Nd6+ Kc6 )24. Rb3 $1 $14 c4 (24... Bb5 $14 25. Be4 h6 )25. Rb4 $36 { White is really pushing.} Nc5 $2 (25... h6 $16 {  was necessary.} )26. Rxc4 $18 { Double Attack} Kb6 27. Bc6 $2 (27. Bf3 $18 )Bxc6 $11 28. Nxc6 Kxc6 29. b4 { [#] Pin} Rb5 30. Rh4 {  Strongly threatening a4.} Rhb8 $2 {} (30... Kb6 $1 $11 {and Black  stays safe.} )31. Rhxd4 $18 ({Not} 31. bxc5 Rb1+ 32. Kd2 Rf1 $14 )(31. Rxc5+ Rxc5 32. bxc5 Kxc5 $14 )a5 {} 32. a3 ({Resist} 32. bxc5 $6 Rb4 $16 )axb4 33. axb4 { Pin} Kc7 34. Rxc5+ Rxc5 35. bxc5 Kc6 36. Rd6+ Kxc5 37. Rd7 h6 38. gxh6 {Accuracy: White = 73%, Black = 65%.} 1-0  [Event "FIDE Chesscom Online Nations Cup"] [White "Firouzja, Alireza"] [Black "Artemiev, Vladislav"] [Site "Online"] [Round "4"] [Annotator "RC"] [Result "1/2-1/2"] [Date "2020.05.06"] [WhiteElo "2703"] [BlackElo "2769"] [PlyCount "154"] [TimeControl "1500+10"]  1. e4 {[%emt 0:0:1]} c5 {[%emt 0:0:4]} 2. Nf3 {[%emt 0:0:2]} e6 {[%emt 0:0:0]} 3. d4 {[%emt 0:0:5]} cxd4 {[%emt 0:0:1]} 4. Nxd4 {[%emt 0:0:0]} Nc6 {[%emt 0:0:1]} 5. Nc3 {[%emt 0:0:2]} a6 {[%emt 0:0:1]} 6. g3 {[%emt 0:0:7] } Nxd4 {[%emt 0:0:7]} 7. Qxd4 {[%emt 0:0:2]} b5 {[%emt 0:0:0]} 8. Bg2 {[%emt 0:0:48]} Bb7 {[%emt 0:0:7]} 9. 0-0 {[%emt 0:1:7]} Ne7 {[%emt 0:0:2] } 10. a4 {[%emt 0:1:0]} Nc6 {[%emt 0:0:8]} 11. Qd1 {[%emt 0:0:0]} b4 {[%emt 0:0:9]} 12. Nd5 {[%emt 0:0:1]} Bc5 {[%emt 0:1:11]} 13. Qg4 {[%emt 0:0:38]} 0-0 {[%emt 0:2:2]} 14. Bh6 {[%emt 0:1:9]} Bd4 {[%emt 0:0:4] } 15. c3 {[%emt 0:2:55]} bxc3 {[%emt 0:2:18]} 16. bxc3 {[%emt 0:0:5] } Be5 {[%emt 0:2:15]} 17. f4 {[%emt 0:2:37]} Bf6 {[%emt 0:0:0]} 18. e5 {[%emt 0:6:19]} exd5 {[%emt 0:0:4]} 19. exf6 {[%emt 0:0:8]} Qxf6 {[%emt 0:0:2]} 20. Bg5 {[%emt 0:0:2]} Qxc3 {[%emt 0:0:14]} 21. Qxd7 {[%emt 0:2:27] } Rab8 {[%emt 0:2:59]} 22. Rac1 {[%emt 0:0:20]} Qe3+ {[%emt 0:0:0]} 23. Kh1 {[%emt 0:0:3]} Qe6 {[%emt 0:0:29]} 24. Qxd5 {[%emt 0:2:59]} Qxd5 {[%emt 0:1:5]} 25. Bxd5 {[%emt 0:0:0]} Nd4 {[%emt 0:0:21]} 26. Bxb7 {[%emt 0:0:1] } Rxb7 {[%emt 0:0:0]} 27. f5 {[%emt 0:0:11]} h6 {[%emt 0:0:0]} 28. Be3 {[%emt 0:0:4]} Rd8 {[%emt 0:0:4]} 29. Rc4 {[%emt 0:1:27]} Rbd7 {[%emt 0:0:5]} 30. f6 {[%emt 0:0:32]} g5 {[%emt 0:0:8]} 31. h4 {[%emt 0:0:11] } gxh4 {[%emt 0:1:19]} 32. Rf4 {[%emt 0:0:4]} Ne6 {[%emt 0:0:0]} 33. Rxh4 {[%emt 0:0:18]} Nf8 {[%emt 0:0:33]} 34. Bxh6 {[%emt 0:1:5]} Ng6 {[%emt 0:0:1]} 35. Rhe4 {[%emt 0:0:11]} Rd6 {[%emt 0:0:14]} 36. Kg2 {[%emt 0:0:4] } Rb8 {[%emt 0:0:15]} 37. Bg5 {[%emt 0:0:48]} Rd5 {[%emt 0:0:0]} 38. Be3 {[%emt 0:0:5]} Rb2+ {[%emt 0:0:3]} 39. Kh3 {[%emt 0:0:11]} Rh5+ {[%emt 0:0:28]} 40. Kg4 {[%emt 0:0:2]} Rd5 {[%emt 0:0:7]} 41. Bd4 {[%emt 0:0:44] } Rd2 {[%emt 0:0:5]} 42. Bc3 {[%emt 0:0:9]} R2d3 {[%emt 0:0:0]} 43. Rc8+ {[%emt 0:0:5]} Kh7 {[%emt 0:0:8]} 44. Rc7 {[%emt 0:0:19]} Kh6 {[%emt 0:0:1]} 45. Kh3 {[%emt 0:0:9]} Rf3 {[%emt 0:0:27]} 46. Kg2 {[%emt 0:0:2] } Rfd3 {[%emt 0:0:24]} 47. Be1 {[%emt 0:0:11]} Rd7 {[%emt 0:0:0]} 48. Rxd7 {[%emt 0:0:15]} Rxd7 {[%emt 0:0:1]} 49. Rc4 {[%emt 0:0:8]} Rd6 {[%emt 0:0:6]} 50. Bc3 {[%emt 0:0:4]} Kg5 {[%emt 0:0:15]} 51. Rc7 {[%emt 0:0:3] } Rd3 {[%emt 0:0:1]} 52. Kf2 {[%emt 0:0:14]} Kf5 {[%emt 0:0:0]} 53. Rc5+ {[%emt 0:0:20]} Ke4 {[%emt 0:0:26]} 54. Rc4+ {[%emt 0:0:20]} Kd5 {[%emt 0:0:1]} 55. Rc7 {[%emt 0:0:4]} Ke4 {[%emt 0:0:8]} 56. Ba1 {[%emt 0:0:17] } Rd1 {[%emt 0:0:18]} 57. Bc3 {[%emt 0:0:9]} Rd3 {[%emt 0:0:0]} 58. Rc6 {[%emt 0:0:7]} Kd5 {[%emt 0:0:5]} 59. Rc8 {[%emt 0:0:3]} Ke4 {[%emt 0:0:4]} 60. Re8+ {[%emt 0:0:3]} Kf5 {[%emt 0:0:10]} 61. Re3 {[%emt 0:0:3] } Rd1 {[%emt 0:0:35]} 62. Ke2 {[%emt 0:0:6]} Rb1 {[%emt 0:0:0]} 63. Kd3 {[%emt 0:0:13]} Rb8 {[%emt 0:0:15]} 64. Kc4 {[%emt 0:0:25]} Rc8+ {[%emt 0:0:1]} 65. Kd5 {[%emt 0:0:10]} Nf8 {[%emt 0:0:4]} 66. Re5+ {[%emt 0:0:20] } Kg6 {[%emt 0:0:2]} 67. Re3 {[%emt 0:0:10]} Nd7 {[%emt 0:0:0]} 68. Rf3 {[%emt 0:0:11]} Nb6+ {[%emt 0:0:1]} 69. Kd6 {[%emt 0:0:4]} Nxa4 {[%emt 0:0:8]} 70. Bd4 {[%emt 0:0:1]} Rd8+ {[%emt 0:0:17]} 71. Ke5 {[%emt 0:0:2] } Rb8 {[%emt 0:0:18]} 72. Rf4 {[%emt 0:0:14]} Rb5+ {[%emt 0:0:0]} 73. Kd6 {[%emt 0:0:1]} Nb6 {[%emt 0:0:22]} 74. Rg4+ {[%emt 0:0:12]} Kf5 {[%emt 0:0:4]} 75. Rf4+ {[%emt 0:0:3]} Kg6 {[%emt 0:0:3]} 76. Rg4+ {[%emt 0:0:0] } Kf5 {[%emt 0:0:1]} 77. Rf4+ {[%emt 0:0:1]} Kg6 {[%emt 0:0:0]} 1/2-1/2  [Event "FIDE Chesscom Online Nations Cup"] [White "Vidit, Santosh Gujrathi"] [Black "Wang, Hao"] [Site "Online"] [Round "4"] [Annotator "TA"] [Result "0-1"] [Date "2020.05.06"] [WhiteElo "2636"] [BlackElo "2750"] [PlyCount "58"]  1. d4 {} d5 2. c4 dxc4 3. e4 e5 4. Nf3 exd4 5. Bxc4 Nc6 6. 0-0 Be6 7. Bb5 Bc5 8. b4 {D20:  Queen's Gambit Accepted: 3 e3 and 3 e4.} Bb6 9. a4 {  [#] Threatens to win with a5.} a6 10. Bxc6+ {White is slightly better.} bxc6 11. a5 Ba7 12. Bb2 { White has compensation.} Nf6 13. Nbd2 0-0 14. Qc2 Re8 $36 { [#] Black has some pressure.} 15. Rad1 $146 ({Predecessor:} 15. Rac1 Qb8 16. Ba3 Bd7 17. Rfe1 Qb5 18. Qc4 Ng4 19. Qxb5 axb5 20. Bb2 c5 21. bxc5 {1-0 (42) De Ruiter,D (2268)-De Strycker,N (2302)  Haarlem 2019} )Rb8 16. Ne5 Bd7 17. Ndc4 $2 {White does not recover from  this.} (17. Nd3 $17 {is a better defense.} )Rxb4 $19 18. Qd2 $2 (18. Bc1 {keeps fighting.} )c5 { White must now  prevent ...Bb5.} 19. Bxd4 {Strongly threatening Bc3.} Rxc4 {Black is clearly  winning.} 20. Ba1 {[#]} Rd4 $1 21. Bxd4 cxd4 22. Qf4 (22. Nxd7 $142 Qxd7 23. f3 )Bb5 23. Rfe1 Qd6 24. Nd3 Qxf4 25. Nxf4 Rxe4 26. Rxe4 Nxe4 27. Nd5 d3 28. Nxc7 Bxf2+ 29. Kh1 Bc4 {Accuracy: White = 25%, Black = 88%.} 0-1  [Event "FIDE Chesscom Online Nations Cup"] [White "Muzychuk, Mariya"] [Black "Girya, Olga"] [Site "Online"] [Round "4"] [Annotator "ChessBase"] [Result "1/2-1/2"] [Date "2020.05.06"] [WhiteElo "2506"] [BlackElo "2471"] [PlyCount "167"] [TimeControl "1500+10"]  1. e4 {[%emt 0:0:4]} c6 {[%emt 0:0:2]} 2. d4 {[%emt 0:0:2]} d5 {[%emt 0:0:0]} 3. Nc3 {[%emt 0:0:2]} dxe4 {[%emt 0:0:2]} 4. Nxe4 {[%emt 0:0:1]} Nf6 {[%emt 0:0:2]} 5. Nxf6+ {[%emt 0:0:4]} exf6 {[%emt 0:0:1]} 6. c3 {[%emt 0:0:2] } Bd6 {[%emt 0:0:2]} 7. Bd3 {[%emt 0:0:6]} 0-0 {[%emt 0:0:0]} 8. Qc2 {[%emt 0:1:1]} Re8+ {[%emt 0:0:5]} 9. Ne2 {[%emt 0:0:2]} h5 {[%emt 0:0:6] } 10. Be3 {[%emt 0:2:10]} Nd7 {[%emt 0:0:10]} 11. 0-0-0 {[%emt 0:1:18] } Nf8 {[%emt 0:0:13]} 12. Ng3 {[%emt 0:2:32]} g6 {[%emt 0:0:0]} 13. Ne4 {[%emt 0:0:23]} Be7 {[%emt 0:0:3]} 14. h3 {[%emt 0:0:52]} f5 {[%emt 0:5:5] } 15. Nd2 {[%emt 0:0:16]} Be6 {[%emt 0:1:29]} 16. Kb1 {[%emt 0:0:0]} b5 {[%emt 0:0:34]} 17. Be2 {[%emt 0:2:38]} Qc7 {[%emt 0:5:4]} 18. Nb3 {[%emt 0:1:27]} Bd5 {[%emt 0:1:21]} 19. Rhg1 {[%emt 0:1:5]} Bd6 {[%emt 0:0:19] } 20. g3 {[%emt 0:1:14]} Be4 {[%emt 0:5:56]} 21. Bd3 {[%emt 0:0:0]} Rad8 {[%emt 0:0:44]} 22. Bg5 {[%emt 0:2:29]} Be7 {[%emt 0:2:57]} 23. Bf4 {[%emt 0:1:45]} Bd6 {[%emt 0:0:16]} 24. Bxd6 {[%emt 0:0:18]} Qxd6 {[%emt 0:0:14] } 25. Bxe4 {[%emt 0:1:54]} Rxe4 {[%emt 0:0:30]} 26. Nc5 {[%emt 0:0:4] } Re7 {[%emt 0:0:1]} 27. g4 {[%emt 0:0:45]} fxg4 {[%emt 0:0:0]} 28. hxg4 {[%emt 0:0:4]} h4 {[%emt 0:1:1]} 29. g5 {[%emt 0:0:44]} Qf4 {[%emt 0:0:9]} 30. Nd3 {[%emt 0:0:8]} Qf5 {[%emt 0:0:24]} 31. Ne5 {[%emt 0:0:15] } Qxc2+ {[%emt 0:0:25]} 32. Kxc2 {[%emt 0:0:3]} Rd6 {[%emt 0:0:0]} 33. Rg4 {[%emt 0:0:49]} c5 {[%emt 0:0:22]} 34. Rxh4 {[%emt 0:0:24]} cxd4 {[%emt 0:0:1]} 35. cxd4 {[%emt 0:0:1]} Rc7+ {[%emt 0:0:3]} 36. Kb1 {[%emt 0:0:21] } Ne6 {[%emt 0:0:2]} 37. Rdh1 {[%emt 0:2:54]} Nxg5 {[%emt 0:0:0]} 38. Rh8+ {[%emt 0:0:20]} Kg7 {[%emt 0:0:2]} 39. f4 {[%emt 0:0:2]} Ne4 {[%emt 0:0:7]} 40. Ng4 {[%emt 0:0:54]} Nd2+ {[%emt 0:0:6]} 41. Ka1 {[%emt 0:0:1] } Rc1+ {[%emt 0:0:8]} 42. Rxc1 {[%emt 0:0:2]} Kxh8 {[%emt 0:0:0]} 43. Rc7 {[%emt 0:0:31]} Kg7 {[%emt 0:0:37]} 44. Ne5 {[%emt 0:0:33]} Rxd4 {[%emt 0:0:12]} 45. Rxf7+ {[%emt 0:0:5]} Kg8 {[%emt 0:0:21]} 46. b3 {[%emt 0:0:18] } a5 {[%emt 0:0:16]} 47. Rf6 {[%emt 0:0:10]} Ne4 {[%emt 0:0:0]} 48. Rxg6+ {[%emt 0:0:2]} Kf8 {[%emt 0:0:1]} 49. Rg2 {[%emt 0:0:32]} Nc3 {[%emt 0:0:17]} 50. Kb2 {[%emt 0:0:7]} b4 {[%emt 0:0:3]} 51. Nc6 {[%emt 0:0:16] } Rxf4 {[%emt 0:0:13]} 52. Nxa5 {[%emt 0:0:6]} Nd1+ {[%emt 0:0:0]} 53. Kc1 {[%emt 0:0:5]} Nc3 {[%emt 0:0:2]} 54. Nc6 {[%emt 0:0:10]} Rf1+ {[%emt 0:0:10]} 55. Kc2 {[%emt 0:0:16]} Nxa2 {[%emt 0:0:5]} 56. Kb2 {[%emt 0:0:4] } Nc3 {[%emt 0:0:6]} 57. Nxb4 {[%emt 0:0:18]} Nb5 {[%emt 0:0:0]} 58. Re2 {[%emt 0:0:7]} Rf3 {[%emt 0:0:6]} 59. Rd2 {[%emt 0:0:14]} Ke8 {[%emt 0:0:26]} 60. Nc6 {[%emt 0:0:3]} Rf6 {[%emt 0:0:16]} 61. Nd4 {[%emt 0:0:8] } Nc7 {[%emt 0:0:14]} 62. Kc3 {[%emt 0:0:9]} Rd6 {[%emt 0:0:0]} 63. b4 {[%emt 0:0:17]} Kd7 {[%emt 0:0:4]} 64. Kc4 {[%emt 0:0:12]} Nd5 {[%emt 0:0:6]} 65. b5 {[%emt 0:0:7]} Ne3+ {[%emt 0:0:8]} 66. Kc3 {[%emt 0:0:9] } Nd5+ {[%emt 0:0:4]} 67. Kb3 {[%emt 0:0:3]} Nb6 {[%emt 0:0:0]} 68. Rd3 {[%emt 0:0:4]} Kc7 {[%emt 0:0:7]} 69. Kc3 {[%emt 0:0:7]} Nd5+ {[%emt 0:0:5]} 70. Kc4 {[%emt 0:0:2]} Nb6+ {[%emt 0:0:7]} 71. Kb4 {[%emt 0:0:4] } Kb7 {[%emt 0:0:2]} 72. Kc3 {[%emt 0:0:11]} Nd5+ {[%emt 0:0:0]} 73. Kd2 {[%emt 0:0:5]} Nb4 {[%emt 0:0:5]} 74. Rb3 {[%emt 0:0:26]} Rxd4+ {[%emt 0:0:3]} 75. Kc3 {[%emt 0:0:1]} Rd3+ {[%emt 0:0:28]} 76. Kxb4 {[%emt 0:0:3]} Rxb3+ {[%emt 0:0:4]} 77. Kxb3 {[%emt 0:0:1]} Kb6 {[%emt 0:0:0]} 78. Kb4 {[%emt 0:0:1]} Kb7 {[%emt 0:0:1]} 79. Kc5 {[%emt 0:0:1]} Kc7 {[%emt 0:0:1]} 80. b6+ {[%emt 0:0:1]} Kb7 {[%emt 0:0:2]} 81. Kb5 {[%emt 0:0:0] } Kb8 {[%emt 0:0:1]} 82. Kc6 {[%emt 0:0:2]} Kc8 {[%emt 0:0:0]} 83. b7+ {[%emt 0:0:1]} Kb8 {[%emt 0:0:1]} 84. Kb6 {[%emt 0:0:1]} 1/2-1/2  [Event "FIDE Chesscom Online Nations Cup"] [White "Koneru, Humpy"] [Black "Hou, Yifan"] [Site "Online"] [Round "4"] [Annotator "TA"] [Result "1/2-1/2"] [Date "2020.05.06"] [WhiteElo "2483"] [BlackElo "2621"] [PlyCount "75"]  1. d4 {} Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 5. cxd5 exd5 6. Bg5 c6 7. e3 Be7 8. Bd3 Ne4 9. Bxe7 Qxe7 10. Qc2 Ndf6 {10...f5 is not played anymore.} 11. 0-0 0-0 12. Ne5 {D35: Queen's Gambit Declined: Exchange Variation.} Re8 13. Rfe1 Bf5 14. Rac1 {[#]} Nxc3 $146 ({Predecessor:} 14... g6 )15. Qxc3 Bxd3 16. Qxd3 Ne4 17. Nf3 a5 18. Nd2 Nd6 19. a4 g6 20. h3 Kg7 21. Rc5 Qd8 22. Rcc1 Qb6 23. Qc3 Ne4 24. Nxe4 Rxe4 25. Rb1 Qb4 26. Qxb4 axb4 $11 { Endgame  KRR-KRR} 27. b3 f5 28. f3 Re6 29. Kf2 Kf6 30. h4 Ke7 31. Rbd1 Kd6 32. Rd3 b6 33. g3 Rae8 34. Red1 Rf8 35. R3d2 Rfe8 36. Rd3 Rf8 37. R3d2 Rfe8 38. Rd3 {  Accuracy: White = 100%, Black = 100%.} 1/2-1/2  [Event "FIDE Chesscom Online Nations Cup"] [White "Zatonskih, Anna"] [Black "Dzagnidze, Nana"] [Site "Online"] [Round "4"] [Annotator "RC"] [Result "0-1"] [Date "2020.05.06"] [WhiteElo "2327"] [BlackElo "2447"] [PlyCount "94"] [TimeControl "1500+10"]  1. e4 {[%emt 0:0:1]} c5 {[%emt 0:0:3]} 2. c3 {[%emt 0:0:1]} Nf6 {[%emt 0:0:0]} 3. e5 {[%emt 0:0:7]} Nd5 {[%emt 0:0:7]} 4. Nf3 {[%emt 0:0:25]} Nc6 {[%emt 0:0:41]} 5. Bc4 {[%emt 0:0:7]} Nb6 {[%emt 0:0:14]} 6. Bb3 {[%emt 0:0:0]} d5 {[%emt 0:0:30]} 7. exd6 {[%emt 0:1:16]} Qxd6 {[%emt 0:0:8]} 8. 0-0 {[%emt 0:0:33]} Be6 {[%emt 0:2:40]} 9. Na3 {[%emt 0:1:56]} Bxb3 {[%emt 0:2:26] } 10. axb3 {[%emt 0:0:5]} Qd3 {[%emt 0:0:53]} 11. Qc2 {[%emt 0:5:12] } Rd8 {[%emt 0:2:50]} 12. Qxd3 {[%emt 0:1:6]} Rxd3 {[%emt 0:0:0]} 13. Nc4 {[%emt 0:2:0]} Nxc4 {[%emt 0:0:19]} 14. bxc4 {[%emt 0:0:0] } e6 {[%emt 0:2:14]} 15. Rd1 {[%emt 0:8:56]} Be7 {[%emt 0:0:13]} 16. Ne1 {[%emt 0:0:54] } Rd7 {[%emt 0:0:10]} 17. Nf3 {[%emt 0:0:35]} e5 {[%emt 0:0:0]} 18. d4 {[%emt 0:2:53]} exd4 {[%emt 0:2:23]} 19. cxd4 {[%emt 0:0:2]} cxd4 {[%emt 0:0:5]} 20. Bd2 {[%emt 0:0:2]} 0-0 {[%emt 0:1:4]} 21. b4 {[%emt 0:0:4] } Bxb4 {[%emt 0:0:25]} 22. Bxb4 {[%emt 0:0:4]} Nxb4 {[%emt 0:0:0]} 23. Rxa7 {[%emt 0:0:4]} Nc6 {[%emt 0:1:24]} 24. Ra3 {[%emt 0:0:5]} f6 {[%emt 0:0:21]} 25. Kf1 {[%emt 0:0:24]} Rfd8 {[%emt 0:0:45]} 26. Ke2 {[%emt 0:0:31] } g5 {[%emt 0:0:22]} 27. h3 {[%emt 0:0:41]} Kf7 {[%emt 0:0:16] } 28. g4 {[%emt 0:0:37]} Kg6 {[%emt 0:0:19]} 29. h4 {[%emt 0:0:32]} gxh4 {[%emt 0:0:46] } 30. Rh1 {[%emt 0:0:3]} Re7+ {[%emt 0:0:39]} 31. Kd2 {[%emt 0:0:20] } Ne5 {[%emt 0:0:56]} 32. Nxe5+ {[%emt 0:0:5]} fxe5 {[%emt 0:0:0]} 33. Rxh4 {[%emt 0:0:4]} Rf8 {[%emt 0:1:10]} 34. Ke2 {[%emt 0:0:23]} e4 {[%emt 0:0:25]} 35. Rah3 {[%emt 0:0:5]} Ref7 {[%emt 0:0:11]} 36. Rh6+ {[%emt 0:0:8] } Kg5 {[%emt 0:0:2]} 37. R6h5+ {[%emt 0:0:15]} Kf4 {[%emt 0:0:0]} 38. g5 {[%emt 0:0:11]} d3+ {[%emt 0:0:7]} 39. Ke1 {[%emt 0:0:6]} Ra8 {[%emt 0:0:12]} 40. R3h4+ {[%emt 0:0:10]} Kf5 {[%emt 0:0:24]} 41. g6+ {[%emt 0:0:3] } Kxg6 {[%emt 0:0:2]} 42. Rh6+ {[%emt 0:0:1]} Kf5 {[%emt 0:0:0]} 43. R6h5+ {[%emt 0:0:2]} Kf6 {[%emt 0:0:11]} 44. Rh6+ {[%emt 0:0:0]} Ke5 {[%emt 0:0:6]} 45. R4h5+ {[%emt 0:0:49]} Kd4 {[%emt 0:0:5]} 46. Rd6+ {[%emt 0:0:7]} Kc3 {[%emt 0:0:1]} 47. Kf1 {[%emt 0:0:15]} Rg7 {[%emt 0:0:10] } 0-1