[Event "87th Tata Steel Challengers 2025"] [Site "Wijk aan Zee"] [Date "2025.02.01"] [Round "12.1"] [White "Yakubboev, Nodirbek"] [Black "Pijpers, Arthur"] [Result "1-0"] [ECO "A34"] [WhiteElo "2659"] [BlackElo "2474"] [Annotator "Stockfish 18 - ChessBase"] [PlyCount "71"] [EventDate "2025.??.??"] {[%evp 0,71,19,27,17,-29,15,15,71,80,64,59,49,49,51,34,40,23,23,27,35,21,48,31,50,8,11,-1,-2,-5,12,-10,-7,9,1,-19,-26,-9,-17,-23,13,15,115,115,115,114,114,112,163,120,110,159,172,109,109,111,149,82,56,56,182,280,254,274,358,358,772,772,842,29996,29997,29998,29999,-30000]} 1. Nf3 Nf6 2. c4 c5 3. Nc3 d5 4. cxd5 Nxd5 5. d4 Nxc3 6. bxc3 g6 7. e3 Bg7 8. Bc4 O-O 9. O-O Qc7 10. Bd3 Rd8 11. Ba3 b6 12. Qe2 Nc6 13. Rac1 Bb7 14. Rfd1 $146 (14. Ba6 Bxa6 15. Qxa6 Rac8 16. h3 Na5 17. Qe2 Qd7 18. dxc5 Qa4 19. Bb4 bxc5 20. Bxa5 Qxa5 21. c4 Rb8 22. Rb1 Rb4 23. Rxb4 Qxb4 24. Qc2 Rb8 25. Rd1 Bf6 26. e4 e6 27. e5 Bd8 28. Rd7 Bb6 {Poschel,P (2260)-Koster,E Dearborn 1986 ½-½ (83)}) 14... e6 15. h4 Qe7 16. e4 Qf6 $6 {Inaccuracy. Rac8 was best.} (16... Rac8) 17. Bb2 Qf4 18. g3 Qg4 19. Qe3 cxd4 $6 {Inaccuracy. Na5 was best.} (19... Na5 20. Re1) 20. cxd4 Rac8 $6 {Inaccuracy. e5 was best.} (20... e5 21. dxe5) 21. Be2 Qh5 $6 {Inaccuracy. Nxd4 was best.} (21... Nxd4 22. Bxd4 Qxe4 23. Rxc8 Rxc8 24. Qxe4 Bxe4 25. Be3 Bd5 26. Nd4 h6 27. a4) 22. Ng5 Qh6 23. Qf4 Rf8 24. Ba1 $6 {Inaccuracy. e5 was best.} (24. e5 Nb4 25. Rxc8 Bxc8 26. Ba3 a5 27. Rc1 Bb7 28. Rc7 Bd5 29. Rxf7 Bxa2) 24... a6 25. d5 e5 26. Qe3 Nd4 27. Bxd4 $6 {Inaccuracy. Bg4 was best.} (27. Bg4 Rcd8 28. Bxd4 exd4 29. Qf4 Rde8 30. Qc7 Ba8 31. Qd7 Bf6 32. Nxf7 Qg7) 27... exd4 28. Qb3 Rxc1 $6 {Inaccuracy. Bf6 was best.} (28... Bf6 29. Rxc8 Bxc8 30. Nf3 Bg4 31. Nxd4 Qh5 32. Bxg4 Qxg4 33. Qd3 Bxh4 34. e5) 29. Rxc1 Bf6 $6 {Inaccuracy. Be5 was best.} (29... Be5 30. Qxb6 Bc8 31. d6 Be6 32. Kg2 a5 33. Rc2 Qg7 34. f4 h6 35. Nxe6) 30. Rc7 Bc8 $6 {Inaccuracy. Bxg5 was best.} (30... Bxg5 31. hxg5 Qxg5 32. Rxb7 b5 33. d6 Kg7 34. Qd5 Qxd5 35. exd5 Re8) 31. Nxf7 Qd2 32. d6 Qe1+ 33. Bf1 Bg7 $2 {Checkmate is now unavoidable. Qc3 was best.} (33... Qc3 34. Rxc3 dxc3 35. e5 Be6 36. Qxc3 Bxh4 37. gxh4 h6 38. Nxh6+ Kh7 39. Qc7+) 34. Nh6+ Kh8 35. Qg8+ Rxg8 36. Nf7# {1-0 White wins. Precisão Stockfish 17: Brancas 96% Pretas 88% Precisão Chess.com: Brancas 93.1% Pretas 80.3%} 1-0 [Event "87th Tata Steel Challengers 2025"] [Site "Wijk aan Zee"] [Date "2025.02.01"] [Round "12.2"] [White "Suleymanli, Aydin"] [Black "Svane, Frederik"] [Result "1-0"] [ECO "D35"] [WhiteElo "2623"] [BlackElo "2664"] [Annotator "Stockfish 18 - ChessBase"] [PlyCount "167"] [EventDate "2025.??.??"] {[%evp 15,167,13,16,5,11,12,29,17,22,16,20,15,14,20,23,15,23,0,0,0,0,0,0,0,0,0,0,-13,0,-18,-15,7,6,0,0,0,19,12,12,6,29,16,22,27,27,27,52,51,60,58,76,62,86,76,64,35,35,29,33,39,50,43,83,82,87,87,111,104,104,104,133,83,94,86,162,160,165,165,220,158,164,167,261,155,162,160,145,156,163,160,180,174,174,162,166,156,145,88,219,143,149,-658,220,218,218,217,206,213,218,211,217,224,211,210,242,250,253,241,241,242,262,264,473,466,535,488,481,419,1143,1145,362,1058,1161,1174,1170,1096,764,952,1133,1054,1066,745,893,629,1685,4095,4681,4627,4133,3685,1503,1336,1048,975]} 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 O-O 7. Bd3 h6 8. Bh4 c6 9. Nge2 {9.Bg3 is the modern continuation. D35: Queen's Gambit Declined: Exchange Variation.} Re8 10. O-O a5 11. Qc2 {White has an edge.} (11. f3 Nbd7 12. a4 Nf8 13. Kh1 Ne6 14. Bf2 Bf8 15. e4 dxe4 16. fxe4 c5 17. Bb5 Bd7 18. Bxd7 Qxd7 19. Bh4 Ng5 20. Bxg5 hxg5 21. Rxf6 gxf6 22. Nd5 Ra6 23. dxc5 Qg4 24. h3 Qxe4 25. Ng3 Qe5 {Suleymanli,A (2543)-Brunello,S (2519) Almaty KAZ 2022 1-0 (37)}) 11... Nbd7 (11... Na6 12. a3 Nc7 13. f3 Ne6 14. Bf2 b5 15. Ng3 Ba6 16. Nce2 c5 17. dxc5 Nxc5 18. Bf5 b4 19. axb4 axb4 20. Rfd1 Bc4 21. Nd4 b3 22. Qd2 Bf8 23. Rxa8 Qxa8 24. Bb1 g6 25. h4 h5 26. Nge2 {Maghsoodloo,P (2707)-Carlsen,M (2839) chess.com INT 2023 ½-½ (74)}) 12. Bg3 $146 {[%CAl Yc3b5]} (12. f3 b5 13. Bf2 (13. Rae1 Ba6 14. Bf2 Nb6 15. Ng3 b4 16. Bxa6 Rxa6 17. Nd1 Nbd7 18. e4 dxe4 19. fxe4 c5 20. e5 Nd5 21. Nf5 Bf8 22. Bh4 Qb6 23. Nd6 Bxd6 24. Qf5 N7f6 25. exf6 Rxe1 26. Rxe1 Qc6 {Bercaru,V (2065)-Sabuk,P (2375) Roquetas de Mar ESP 2025 1-0 (44)}) 13... Bb7 14. h3 Rc8 15. Bf5 g6 16. Bxg6 fxg6 17. Qxg6+ Kh8 18. e4 Nh7 19. e5 b4 20. Nd1 Ba6 21. Re1 Rg8 22. Qxh6 Bg5 23. Qd6 Qe8 24. e6 Qg6 25. Bg3 Ndf6 26. Nf2 Be3 {Gaal,Z (2341)-Hong,A (2572) Budapest HUN 2024 0-1 (47)}) (12. Rae1 b5 13. f3 (13. Nb1 Bb7 14. Nd2 Qb6 15. Rc1 a4 16. Bf5 b4 17. Bxd7 Nxd7 18. Bxe7 Rxe7 19. Nf4 Ra5 20. Nd3 Ba6 21. Rfd1 Bxd3 22. Qxd3 c5 23. dxc5 Rxc5 24. Nf3 Nf6 25. Rxc5 Qxc5 26. Qd4 Rc7 {Bulau,A (2154)-Cnejev,V (2268) Sebes ROU 2022 0-1 (94)}) 13... Nb6 14. Bf2 Bd7 15. h3 b4 16. Nb1 Rc8 17. e4 dxe4 18. fxe4 c5 19. Ba6 Rc7 20. d5 Bd6 21. Nd2 Qb8 22. b3 a4 23. Bh4 Nh7 24. Bd3 Nf8 25. Nc1 Ng6 26. Bf2 Qd8 {Hummel,P (2120)-Zwirs,N (2481) Hoogeveen NED 2022 0-1 (37)}) 12... Bf8 13. h3 b5 14. Rac1 Ba6 15. Rfd1 Qb6 16. e4 $146 (16. Bf4 b4 17. Na4 Bxd3 18. Qxd3 Qb7 19. Rc2 Rac8 20. Rdc1 Ne4 21. Bh2 g6 22. Qd1 {1-0 Nikolaou,S (2180)-Malataras,G (1976) Aegean op 46th 2023 (5)}) 16... b4 {aiming for ...Bxd3.} 17. Na4 {[%csl Yb6,Yc6]} Bxd3 $1 18. Rxd3 Qb5 19. e5 Ne4 20. Qd1 Rac8 21. b3 Qb7 22. Bf4 c5 23. f3 Ng5 $6 {Inaccuracy. c4 was best.} (23... c4) 24. dxc5 Nxc5 25. Rxd5 Nge6 26. Nxc5 Bxc5+ 27. Kh1 Qa8 28. Rc2 a4 29. Bg3 axb3 30. axb3 Qa3 31. Qb1 Qa8 32. Rd1 Rcd8 33. Nf4 Rxd1+ 34. Qxd1 Rd8 35. Qb1 {And now Nxe6 would win.} Nxf4 36. Bxf4 (36. Rxc5 {is more complex.} Nxh3 37. e6 fxe6 38. Rc7) 36... Bd4 37. Ra2 Qc8 38. Rd2 Bc3 $6 {Inaccuracy. Bb6 was best.} (38... Bb6) 39. Rd6 Re8 40. Qd3 Qa8 41. Kh2 {White is more active.} Qa5 42. Rd5 Qa1 $6 {Inaccuracy. Qb6 was best.} (42... Qb6) 43. Qc4 $6 {Inaccuracy. Bg3 was best.} (43. Bg3) 43... Qb1 $16 44. Rd3 Qc2 $2 {Mistake. Be1 was best. [#]} (44... Be1 45. Be3) 45. Bg3 $1 $18 {[%CAl Yf4g3,Yg3h4,Yh4f2,Yf2c5][%mdl 32]} Qb1 46. f4 Ra8 (46... Bb2 47. Bf2 Bc3) 47. Bh4 Re8 48. Bf2 Ra8 (48... Rf8 49. Be3 Ra8) 49. Qd5 $6 {Inaccuracy. e6 was best.} (49. Qe4 $18 Re8 50. Qc6) (49. e6 fxe6 50. Qxe6+ Kh8 51. Qe4 Rg8 52. Bd4 Qc1 53. Qe5 Bxd4 54. Qxd4 Rf8) 49... Re8 $16 50. Bc5 Qc1 51. Be3 Qb1 52. Qc4 Ra8 $6 {Inaccuracy. Be1 was best.} (52... Be1) 53. e6 fxe6 54. Qxe6+ Kh8 55. Qd5 Rf8 56. Qd6 (56. Qc4) 56... Kg8 $6 {Inaccuracy. Rf6 was best.} (56... Rf6 57. Qd5 Kh7) 57. Qe6+ $6 {Inaccuracy. Bc5 was best.} (57. Bc5 Re8 58. Qg6 Qe1 59. Bd4 Bxd4 60. Rxd4 Qe6 61. Qxe6+ Rxe6 62. Rxb4 Re3) 57... Kh8 {[#]} 58. Bd4 $4 {[%mdl 8192] Blunder. Qc4 was best.} (58. Qc4 Qe1 59. Bd4 Qc1 60. Bxc3 bxc3 61. Rxc3 Qxf4+ 62. Qxf4 Rxf4 63. Kg1 Kh7) 58... Kh7 $4 {[%mdl 8192] Blunder. Qxd3 was best.} (58... Qxd3 59. Qxh6+ Qh7 60. Qd6 Rg8 61. Bb6 Qf5 62. Bc7 Rf8 63. Qe7 Qf7 64. Qc5) 59. Qe7 $18 {[%csl Gd4][%CAl Re7g7]} Rg8 60. Qe4+ Kh8 {[#]} 61. Qd5 $1 $40 {[%mdl 128] Black is in trouble.} Qb2 (61... Qc1 62. Qd6) 62. Qc4 Bxd4 63. Qxd4 {[%mdl 4096] Endgame KQR-KQR. White is a pawn up.} Qe2 64. Re3 {Dodges Re8} Qf2 65. Re4 $1 Qxd4 66. Rxd4 {KR-KR. White is a pawn up.} Rb8 67. f5 Rb5 68. g4 h5 $2 (68... Kg8 69. h4 h5) 69. Kg3 (69. gxh5 Rxf5 70. Rxb4 Rxh5 $14) 69... hxg4 70. hxg4 Kg8 71. Kf4 g6 (71... Rb8 72. Rd6 Kf8) 72. fxg6 Kg7 73. Ke3 (73. Rd6 Rb8 74. Ke4 Re8+ 75. Kd4 Rc8 $16) 73... Kxg6 {White is clearly winning.} 74. Kd3 Kg5 75. Kc4 Rb8 76. Kc5 Kf6 77. Rxb4 Rc8+ 78. Kd4 Rd8+ 79. Ke3 Rh8 80. Kf4 Rh3 81. Rb6+ Kf7 82. b4 Rc3 83. g5 Rc1 84. Ke5 {Weighted Error Value: White=0.22 (precise) /Black=0.22 (precise) Loses game: White=1 --- Missed win: --- Black=1 Mistake: White=3 Black=6 Inaccurate: White=2 Black=1 OK: White=30 Black=25 Best: White=6 Black=4 Strong: White=2 Black=1 Precisão Stockfish 17: Brancas 89% Pretas 84% Precisão Chess.com: Brancas 91.4% Pretas 88.03%} 1-0 [Event "87th Tata Steel Challengers 2025"] [Site "Wijk aan Zee"] [Date "2025.02.01"] [Round "12.3"] [White "Oro, Faustino"] [Black "Lu, Miaoyi"] [Result "1-0"] [ECO "C78"] [WhiteElo "2447"] [BlackElo "2429"] [Annotator "Stockfish 18 - ChessBase"] [PlyCount "91"] [EventDate "2025.??.??"] {[%evp 0,81,28,28,39,23,10,4,15,15,6,0,9,-18,12,16,6,-38,1,-51,-41,-38,-35,-37,-7,-10,5,-7,-16,-14,-14,-15,-11,-39,3,-28,31,-19,-19,-12,-14,-27,28,20,45,34,56,-1,48,52,33,23,44,29,33,53,53,41,53,62,63,86,113,106,100,113,113,107,152,115,104,115,115,115,150,157,152,152,177,270,323,335,358,389]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. c3 b5 7. Bb3 d6 8. d3 h6 9. Re1 O-O 10. h3 Re8 11. Nbd2 Bb6 12. Nf1 Be6 13. Bxe6 Rxe6 14. Ng3 d5 15. Qe2 Qd7 16. Nh4 $146 (16. Be3 Bxe3 17. Qxe3 Rd8 18. a4 b4 19. Qc5 bxc3 20. bxc3 Qe7 21. Qxe7 Nxe7 22. exd5 Nexd5 23. c4 Nb4 24. Rxe5 Nxd3 25. Rxe6 fxe6 26. Rb1 Nc5 27. a5 Nfe4 28. Nxe4 Nxe4 29. Re1 Nc5 30. Re5 Nb7 {Urazayev,A (2472)-Cheparinov,I (2663) Samarkand UZB 2023 ½-½ (83)}) 16... Bc5 17. Nhf5 Bf8 18. h4 Rd8 19. Be3 d4 20. cxd4 exd4 21. Bd2 Nb4 22. Rec1 c5 $6 {Inaccuracy. a5 was best.} (22... a5 23. h5) 23. Bxb4 cxb4 24. h5 a5 25. Qc2 $6 {Inaccuracy. Qf3 was best.} (25. Qf3 a4) 25... g6 26. hxg6 fxg6 27. Nh4 Ng4 28. Nf3 Bg7 $2 {Mistake. Bd6 was best.} (28... Bd6) 29. Ne2 Rf8 $6 {Inaccuracy. Ne5 was best.} (29... Ne5) 30. Qc7 Re7 31. Qxd7 Rxd7 32. Rc5 Rdf7 33. Rac1 h5 34. Rc8 $6 {Inaccuracy. Rd5 was best.} (34. Rd5 h4 35. Rc6 Rxf3 36. gxf3 Ne5 37. Rxe5 Bxe5 38. Rxg6+ Kh7 39. Rg5 Bg7) 34... h4 35. R1c6 h3 36. Rxf8+ Rxf8 37. Nexd4 $2 {Mistake. Rxg6 was best.} (37. Rxg6) 37... h2+ $2 {Mistake. Bxd4 was best.} (37... Bxd4 38. Nxd4 h2+ 39. Kh1 Nxf2+ 40. Kxh2 Rd8 41. Nf3 Nxd3 42. Rxg6+ Kf7 43. Ra6) 38. Nxh2 Nxh2 $4 {Blunder. Ne5 was best.} (38... Ne5 39. Rd6) 39. Rxg6 Rf7 $6 {Inaccuracy. Rf6 was best.} (39... Rf6 40. Rg5 Kf7 41. Nf5 Bf8 42. Kxh2 a4 43. e5 Rb6 44. Nd4 Ke8 45. Kg3) 40. Nf5 Kf8 41. Nxg7 a4 42. Ne6+ Ke8 43. Nd4 Rd7 44. Nxb5 Kf7 45. Rd6 Rb7 46. Rd5 {1-0 White wins. Precisão Stockfish 17: Brancas 96% Pretas 89% Precisão Chess.com: Brancas 93.8% Pretas 85.9%} 1-0 [Event "87th Tata Steel Challengers 2025"] [Site "Wijk aan Zee"] [Date "2025.02.01"] [Round "12.4"] [White "L'Ami, Erwin"] [Black "Nogerbek, Kazybek"] [Result "1/2-1/2"] [ECO "C45"] [WhiteElo "2614"] [BlackElo "2514"] [Annotator "Stockfish 18 - ChessBase"] [PlyCount "120"] [EventDate "2025.??.??"] {[%evp 11,120,14,11,7,2,0,0,0,0,0,-14,-42,-45,-42,-43,-43,-39,-46,-51,-44,-34,-62,-47,-48,-50,-52,-44,-41,-31,-48,-41,-45,-47,-56,-53,-51,-62,-64,-52,-57,-57,-56,-58,-61,-60,-54,-20,-20,-20,-31,-11,-26,-20,-36,-11,-15,0,0,0,0,0,0,0,0,0,0,0,-68,-68,-540,-445,-510,-430,-363,-72,-733,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nxc6 Qf6 6. Qf3 dxc6 {6...Qxf3 is the modern continuation.} 7. Nc3 {C45: Scotch Game.} Qe7 (7... Be6 8. a3 O-O-O 9. Be3 Bxe3 10. Qxe3 Kb8 11. f4 Qe7 12. Bd3 g5 13. fxg5 h6 14. gxh6 Nxh6 15. O-O-O Ng4 16. Qf4 Qd6 17. e5 Nxe5 18. Qe4 Bd5 19. Nxd5 cxd5 20. Qe1 Rxh2 21. Rxh2 Nxd3+ 22. Rxd3 {Nepomniachtchi,I (2705)-Carlsen,M (2850) Berlin 2015 ½-½}) 8. Bd3 Nf6 9. Be3 (9. h3 Be6 10. Be3 Bd6 11. Qe2 Nd7 12. f4 f6 13. O-O O-O 14. Kh1 Bf7 15. Rae1 Rae8 16. a3 a5 17. Bg1 Qd8 18. Qg4 b5 19. Rd1 Be6 20. Qf3 b4 21. axb4 axb4 22. Ne2 c5 23. b3 Qa8 {Plat,V (2488)-Li,E (2351) Las Vegas USA 2024 ½-½ (53)}) 9... Be6 $146 (9... Ng4 10. Bxc5 Qxc5 11. Qg3 Be6 12. f4 O-O-O 13. f5 Bxf5 14. exf5 Ne3 15. Kd2 Nc4+ 16. Kc1 Nxb2 17. Kxb2 Qb4+ 18. Kc1 Qxc3 19. Rb1 Rd4 20. Rxb7 Qa1+ 21. Rb1 Qxa2 22. f6 g6 23. Qh3+ Rd7 24. Re1 {Jones,G (2660)-McShane,L (2644) Llandudno 2017 1-0 (31)}) 10. Bxc5 Qxc5 11. O-O O-O-O 12. Rfe1 Ng4 13. h3 Ne5 14. Qe3 Qxe3 15. Rxe3 g5 16. Be2 Rd2 17. Rc1 Rhd8 {Strong Rooks Black (d2+d8)} 18. b3 c5 19. Kf1 c6 20. Ke1 {[%CAl Yh3h4]} f6 21. Rd1 R2d4 (21... Rxc2 22. Rxd8+ Kxd8 23. Kd1 $16) 22. Nb1 Kc7 23. Rd2 a5 24. Kd1 b5 25. Kc1 a4 26. c3 Rxd2 27. Nxd2 a3 28. c4 b4 29. Nf3 Kd6 30. Ne1 Rh8 31. Bf1 h5 32. g3 Ng6 33. Nd3 g4 (33... h4 {seems wilder.} 34. f4 hxg3 35. f5 Nh4) 34. h4 Ne5 35. Nxe5 Kxe5 {[%mdl 4096] Endgame KRB-KRB} 36. Rd3 $1 {Repels Rd8} Rh7 {[%CAl Yh7d7]} (36... Kxe4 $2 37. Re3+ Kd4 38. Rxe6 $18) 37. Kd2 Rf7 (37... Kxe4 $2 38. Re3+ Kd4 39. Bd3 $18 (39. Rxe6 f5 $18)) 38. Bg2 Rb7 {[%CAl Ye6c4] [#]} 39. Kc1 (39. Ke2) 39... Rd7 $1 $15 40. Rxd7 $4 {[%mdl 8192] Blunder. Kc2 was best.} (40. Kc2 Rd4 41. Re3 Bf7 42. Bf1 Bg6 43. Bg2 Kd6 44. Bh1 Kc7 45. Bg2 Kd7) 40... Bxd7 {KB-KB} 41. Kd2 Kd4 42. Bf1 Be8 $2 (42... Kxe4 $19 {is more deadly. White must now prevent ...Kf3.} 43. Bd3+ Kf3) 43. e5 $6 {[%mdl 8192] Inaccuracy. Be2 was best.} (43. Be2 Bf7) 43... Kxe5 $4 {Blunder. fxe5 was best.} (43... fxe5 44. Bd3 Bf7) 44. Bd3 {The position is equal.} Kd4 45. Bc2 Bf7 46. Bd3 Be6 47. Kc2 Ke5 (47... f5 $5) 48. Kd2 Bf5 49. Bxf5 Kxf5 {KP-KP. Black is a pawn up.} 50. Ke3 Ke5 51. f4+ gxf3 (51... Kf5 $5) 52. Kxf3 {[#]} Kf5 (52... Kd4 $2 53. g4 Kc3 (53... hxg4+ $2 54. Kxg4 Kc3 55. h5 $18) 54. g5 $18) (52... f5 $5) 53. g4+ $1 hxg4+ 54. Kg3 Ke4 {( ? ...f5)} 55. Kxg4 f5+ 56. Kg3 $1 Ke3 57. Kg2 $1 Ke2 {( ? ...f4)} (57... Kf4 $5 58. Kh3 Ke3) 58. Kg3 {White threatens Kf4 and mate.} Ke3 {( ? ...f4+)} 59. Kg2 $1 Kf4 {( ? ...Kg4)} (59... Ke2 $5 60. Kg3 Ke3) 60. Kh3 Ke3 $1 {Weighted Error Value: White=0.29 (precise) /Black=0.24 (precise) Loses game: White=2 --- Missed win: --- Black=2 Mistake: White=1 --- Inaccurate: White=2 Black=1 OK: White=27 Black=19 Best: White=3 Black=3 Strong: White=5 Black=2 Precisão Stockfish 17: Brancas 94% Pretas 93% Precisão Chess.com: Brancas 94.4% Pretas 95.2%} 1/2-1/2 [Event "87th Tata Steel Challengers 2025"] [Site "Wijk aan Zee"] [Date "2025.02.01"] [Round "12.5"] [White "Deshmukh, Divya"] [Black "Bok, Benjamin"] [Result "0-1"] [ECO "D55"] [WhiteElo "2490"] [BlackElo "2583"] [Annotator "Stockfish 18 - ChessBase"] [PlyCount "258"] [EventDate "2025.??.??"] {[%evp 20,258,12,-2,29,23,36,0,0,0,0,-18,-21,-21,-30,-24,-14,-27,-28,-17,-19,-25,-18,-20,-20,-22,-20,-21,-13,-19,-12,-16,-8,-8,-8,-18,-22,-26,-18,-33,-16,-21,-21,-17,-16,-15,-14,-17,-15,-29,-32,-64,-56,-49,-54,-52,-35,-37,-29,-29,-29,-51,-51,-184,-63,-107,-47,-52,-41,-47,-45,-30,0,0,0,0,0,-15,0,0,0,0,0,-1,0,0,0,-15,-8,-82,-79,-119,-119,-119,-119,-119,-119,-119,-119,-113,-20,-55,0,-82,-82,-82,-82,-82,-82,-82,-73,-73,-73,-73,-73,-73,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-67,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-76,-66,-66,-66,-85,-85,-85,-77,-77,-66,-66,-59,-59,-59,-59,-59,-66,-59,-66,-66,-66,-66,-66,-66,-66,-66,-62,-59,-66,-59,-59,-59,-66,-59,-59,-59,-58,-58,-66,-66,-74,-73,-75,-66,-66,-67,-83,-25,-47,-25,-39,-25,-43,-25,-25,-25,-25,-32,-32,-32,-39,-39,-54,-14,-28,-21,-35,-8,-43,-50,-57,-8,-56,-8,-8,-8,-29989,-29989,-29989,-29990]} 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. Nf3 O-O 6. e3 h6 7. Bxf6 Bxf6 8. Rc1 c6 9. Bd3 Nd7 10. O-O a6 11. a3 (11. e4 dxc4 12. Bxc4 e5 13. d5 Nb6 14. Bb3 Bd7 15. Re1 Rc8 16. dxc6 Bxc6 17. Qe2 Qe7 18. Rcd1 Rcd8 19. a3 Rxd1 20. Rxd1 Rd8 21. g3 Rxd1+ 22. Qxd1 Qc5 23. Qd3 Be7 24. Kg2 Qd6 25. Qe3 Bd8 {Gozzoli,Y (2569)-Postny,E (2572) Germany GER 2024 ½-½}) 11... dxc4 $146 {[%mdl 4] An interesting side line. D55: Queen's Gambit Declined: 4 Bg5 Be7: Lines without ...h6 and 6...h6 7 Bxf6.} (11... b5 12. cxd5 (12. cxb5 cxb5 13. a4 b4 14. Ne2 Bb7 15. Bb1 Qb6 16. Qd3 {½-½ (16) Cvitan,O (2481)-Graf,A (2632) Warsaw 2005}) 12... cxd5 13. Bb1 Bb7 14. Ne2 g6 (14... e5 15. dxe5 Nxe5 16. Nxe5 Bxe5 17. Nd4 Qf6 18. Qg4 Rac8 19. Qd7 Rb8 20. Nc6 Bxc6 21. Rxc6 Rfd8 22. Rxf6 Rxd7 23. Rxa6 Bxb2 24. Rd1 d4 25. h4 Rbd8 26. exd4 {Topalov,V (2796)-Carlsen,M (2776) Nice 2009 ½-½}) 15. Nf4 Rc8 16. Qd3 Qe7 17. h4 h5 18. Nxg6 fxg6 19. Qxg6+ Qg7 20. Qxh5 Rfd8 21. Ng5 Nf8 22. Rxc8 Rxc8 23. f4 Bc6 24. Qf3 b4 25. Bd3 bxa3 26. bxa3 {Browne,W (2530)-Vaganian,R (2625) Saint John 1988 ½-½ (49)}) 12. Bxc4 b5 13. Ba2 c5 {The position is equal.} 14. dxc5 Nxc5 15. Nd4 Bb7 $146 (15... Qb6 16. b4 Nd7 17. Ne4 Bb7 18. Nc5 Nxc5 19. bxc5 Qa5 20. c6 Bc8 21. Qd3 Qc7 {0-1 Toshkov,T (2435)-Zlatilov,I (2385) BUL-ch Elenite 1987 (8)}) 16. Ncxb5 axb5 {Black sacrificed a pawn} 17. Rxc5 b4 18. Bb1 Bxd4 (18... bxa3 19. Qc2 Re8 (19... g6 $2 20. Nxe6 Qb6 21. Nxf8 $18) 20. Qh7+ Kf8 21. bxa3 $14) 19. exd4 bxa3 20. bxa3 Rxa3 21. Qc2 g6 {Successful Defense Black Active counter play!} (21... Qxd4 22. Qh7#) 22. Qc1 (22. Qd2 Ra1 23. h3 h5 24. Qc3) 22... Ra1 23. Qxh6 {Counterplay Black} Qxd4 24. Rh5 {[%csl Gh5][%CAl Rh6h7,Yc5h5,Yh5h4,Yh4f4][%mdl 32]} Rd8 {[%CAl Yb7a6] Chess con chili.} (24... gxh5 25. Qh7#) 25. Rh4 Qf6 26. Qh7+ Kf8 27. Rf4 Qg7 (27... Qxf4 {is more complex.} 28. Qh8+ Ke7 29. Qxa1 Qg4) 28. Qxg7+ Kxg7 29. Bd3 Ra2 30. Bb1 Rb2 31. Ra4 {Repels Ba6} Rdd2 32. Be4 $1 {Repels Bc6} Bc8 33. Raa1 f5 34. Bf3 e5 35. Rad1 e4 36. Rxd2 Rxd2 $15 {[%mdl 4096] Endgame KRB-KRB} 37. Bd1 Bb7 {[%CAl Ye4e3]} 38. Re1 Ba6 39. h4 Bb5 40. g3 Rb2 41. Kg2 $2 {Mistake. f3 was best.} (41. f4 $15) (41. f3 Bd3 42. h5 gxh5 43. fxe4 fxe4 44. Bxh5 Kf6 45. Ra1 Ke5 46. Ra8 e3) 41... Kf6 $2 {Mistake. Rb1 was best.} (41... Rb1 42. f3 (42. Rg1 Bc6 43. Be2 e3+ 44. f3 Rb2 45. Re1 Kf6 46. Kh3 Ke5 47. h5) 42... e3 (42... Ba4 43. Bxa4 Rxe1 44. fxe4 $17) 43. Rxe3 Rxd1) 42. h5 $6 {Inaccuracy. Re3 was best.} (42. Re3) 42... Bc6 $6 {Inaccuracy. Rd2 was best.} (42... Rd2 43. Kg1 g5 44. Bb3 Be2 45. Ra1 Bxh5 46. Kf1 Rb2 47. Bd1 Bf3 48. Kg1) 43. Re3 g5 44. Rc3 Bd5 45. Kf1 f4 46. gxf4 gxf4 47. Ke1 {Dodges e3} f3 48. Rc5 Ke5 49. h6 {[%CAl Yh5h6,Yh6h7][%mdl 32] And now h7 would win.} Rb7 50. Ra5 Kd4 51. Bc2 Rb6 52. h7 Rh6 53. Ra7 Rh2 (53... Kc3 $5 54. Rc7+ Kd4 (54... Bc4 55. Rxc4+ Kxc4 56. Bxe4)) 54. Rc7 {[#]} (54. Kd1 {keeps the balance.}) 54... Be6 $1 $17 55. Ba4 $6 {Inaccuracy. Bd1 was best.} (55. Bd1 Bf5 56. Ra7 Ke5 57. Rf7 Kf4 58. Bc2 Rh1+ 59. Kd2 Rxh7 60. Rxh7 Bxh7) 55... Bf5 56. Bb5 Bxh7 57. Rd7+ Kc5 58. Ba6 Bf5 59. Rd8 Kb6 $6 {Inaccuracy. Bg6 was best.} (59... Bg6 60. Rc8+ Kd4 61. Rd8+ Ke5 62. Bc4 Bf5 63. Bb5 Rh6 64. Kd2 Rb6 65. Bc4) 60. Rd6+ $6 {Inaccuracy. Bc8 was best.} (60. Bc8) 60... Kc5 {[%CAl Ye4e3] ( ? ...e3!)} (60... Kc7 $5 61. Rf6 Bd7) 61. Rd8 {[#]} e3 $6 {Inaccuracy. Bg6 was best.} (61... Bg6) 62. fxe3 {[#]} f2+ $1 63. Kd1 Bg4+ 64. Kc1 Rh1+ (64... Rh6 {simplifies} 65. Rf8 Rxa6 66. Rxf2 Kc4) 65. Kb2 f1=Q {Against Rf8} (65... f1=R $2 66. Bxf1 Rxf1 67. Rd4 $19) 66. Bxf1 Rxf1 {KRB-KR} 67. Rd4 Be6 68. Kc3 Ra1 69. Kd3 $1 Bd5 70. Ke2 Ra2+ 71. Rd2 Bc4+ 72. Ke1 Ra3 73. Kf2 Bd3 74. Kf3 Kc4 75. Rh2 Ra8 76. Rh4+ Kc3 77. Rd4 Kd2 78. Kf2 Re8 79. Ra4 Re7 (79... Rxe3 80. Ra2+ Kc3 81. Ra3+ Kd4 82. Ra4+ Kc5 83. Rc4+ Kd6 84. Kxe3) 80. Ra2+ Bc2 81. Rb2 Rf7+ (81... Rxe3 82. Rxc2+ Kxc2 83. Kxe3) 82. Kg3 Kd3 83. Ra2 Bd1 84. Ra8 Bf3 85. Ra3+ Ke2 86. Rb3 Be4 87. Kg4 Bd3 88. e4 Ke3 (88... Bxe4 $2 89. Ra3 $19) 89. Ra3 Kxe4 90. Ra4+ Ke3 91. Kg5 Rf5+ 92. Kg4 Rb5 93. Ra3 Rb6 94. Ra5 Rb1 95. Kg5 Rg1+ 96. Kf6 Rg6+ 97. Ke7 Kd4 98. Ra4+ Bc4 99. Ra1 Bd5 100. Re1 Be4 101. Kd7 Ke5 102. Kc7 Rc6+ 103. Kd7 {[%CAl Ye1e4]} Rb6 104. Rc1 Rh6 105. Re1 Rh7+ 106. Kc8 Kd5 107. Kd8 Ra7 108. Ke8 Bg6+ 109. Kf8 Kd6 110. Rc1 Be4 111. Re1 Bf5 112. Rc1 Be6 113. Rf1 {Prevents Rf7+.} Ke5 (113... Ra8+ $17 114. Kg7 Rg8+ 115. Kh6 Rg2) 114. Ke8 Bc4 115. Rc1 Ke6 {[%CAl Ra7a8]} 116. Kf8 Kf6 {[%CAl Ra7a8]} 117. Ke8 $1 Be6 {( ? ...Ra8+)} 118. Rf1+ Bf5 {[%CAl Ra7a8]} 119. Rd1 $1 Rc7 120. Rd2 Bg4 121. Rd3 Be6 122. Rd1 Rh7 {[%CAl Rh7h8]} 123. Kd8 $1 Ke5 124. Ke8 Bd5 125. Re1+ Kd6 (125... Kf4 $15) 126. Kf8 (126. Kd8) 126... Rf7+ (126... Kc5 $15 127. Re5 Kd6) 127. Ke8 $1 Rf3 {( ? ...Bc6+)} 128. Rd1 $4 {[%mdl 8192] Checkmate is now unavoidable. Kd8 was best.} (128. Kd8) 128... Rf2 129. Rd4 Re2+ {Weighted Error Value: White=0.13 (very precise) /Black=0.13 (very precise) Loses game: White=1 --- Mistake: White=3 Black=6 Inaccurate: White=6 Black=3 OK: White=43 Black=46 Best: White=8 Black=4 Strong: White=6 Black=2 Precisão Stockfish 17: Brancas 91% Pretas 97% Precisão Chess.com: Brancas 94.5% Pretas 96.3%} 0-1 [Event "87th Tata Steel Challengers 2025"] [Site "Wijk aan Zee"] [Date "2025.02.01"] [Round "12.6"] [White "Nguyen, Thai Dai Van"] [Black "Bulmaga, Irina"] [Result "1-0"] [ECO "E73"] [WhiteElo "2668"] [BlackElo "2386"] [Annotator "Stockfish 18 - ChessBase"] [PlyCount "87"] [EventDate "2025.??.??"] {[%evp 0,81,28,17,25,-11,51,35,25,25,37,31,42,19,43,42,33,14,31,42,24,-18,-4,-16,-17,8,1,16,60,72,75,85,111,103,81,79,79,79,135,27,85,59,63,-22,91,91,81,88,88,73,93,84,99,109,107,101,151,142,149,163,201,206,219,236,231,235,227,247,271,259,275,257,261,253,243,245,268,274,277,307,318,363,363,475]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Be3 Nc6 7. d5 Ne5 8. Rc1 e6 9. f4 Ned7 10. dxe6 fxe6 11. Nh3 b6 12. O-O Bb7 13. Bf3 (13. Qc2 Qe7 14. Rce1 Rae8 15. Bf3 e5 16. f5 gxf5 17. exf5 e4 18. Be2 Ne5 19. Bg5 Qd7 20. Nd1 Nfg4 21. Rf4 h5 22. Ref1 Qc6 23. Nhf2 e3 24. Ne4 Nf7 25. Bf3 e2 26. Nf6+ Nxf6 27. Bxc6 exf1=Q+ {Pham,K (2399)-Van Dael,S (2275) Maastricht NED 2024 0-1 (41)}) 13... Nc5 $146 (13... Rb8 14. b4 a6 15. Qc2 Qe7 16. Rce1 Kh8 17. a3 Ba8 18. Nf2 Qf7 19. Nd3 Ng8 20. e5 Bxf3 21. Rxf3 Nh6 22. Bf2 dxe5 23. fxe5 Qe7 24. Qe2 Rf5 25. Rxf5 gxf5 26. Qh5 Qe8 27. Qf3 Nf8 28. Ne2 {Osmak,Y (2428)-Assaubayeva,B (2440) Cap d'Agde FRA 2022 0-1 (43)}) 14. Bxc5 bxc5 15. Ng5 Qe8 16. e5 Bxf3 17. Qxf3 dxe5 18. Qh3 exf4 $6 {Inaccuracy. Nh5 was best.} (18... Nh5 19. Nb5) 19. Rce1 $6 {Inaccuracy. Nxe6 was best.} (19. Nxe6 Rf7 20. Rce1 Qd7 21. Rd1 Qc8 22. Qf3 Rb8 23. Rd8+ Qxd8 24. Nxd8 Rxd8) 19... Qd7 20. Rd1 Qc6 $6 {Inaccuracy. Qe7 was best.} (20... Qe7 21. Nxe6 Rfe8 22. Rfe1 Qf7 23. Qf3 Rab8 24. Nxg7 Qxg7 25. Qxf4 Rxe1+ 26. Rxe1) 21. Rxf4 Nh5 22. Rxf8+ Rxf8 23. Qxe6+ Qxe6 24. Nxe6 Bxc3 $6 {Inaccuracy. Re8 was best.} (24... Re8 25. Nxg7 Nxg7 26. Rd7 Re1+ 27. Kf2 Rc1 28. Rxc7 Rc2+ 29. Kf3 Rxb2 30. Nd5) 25. Nxf8 Bd4+ 26. Rxd4 cxd4 27. Ne6 d3 28. Kf2 Kf7 29. Nxc7 d2 $2 {Mistake. Nf4 was best.} (29... Nf4 30. Ke3) 30. Ke2 Nf4+ 31. Kxd2 Nxg2 32. b4 Nh4 33. Ke2 Ke7 34. Nb5 a6 35. Nc7 a5 36. bxa5 Kd7 37. Nb5 Nf5 38. a6 Kc8 39. c5 Ne7 40. Kf3 Nc6 41. a3 h5 42. Kf4 Nd8 $6 {Inaccuracy. Kb8 was best.} (42... Kb8 43. h4 Kc8 44. Kg5 Ne5 45. Kf6 Nd7+ 46. Kxg6 Nxc5 47. a7 Kb7 48. Kxh5) 43. Ke5 g5 $2 {Checkmate is now unavoidable. Kd7 was best.} (43... Kd7 44. Kd5 Nc6 45. a7 Ne7+ 46. Kc4 Nf5 47. a8=Q Ne3+ 48. Kd3 Nd1 49. c6+) 44. Kd5 {1-0 White wins. Precisão Stockfish 17: Brancas 97% Pretas 92% Precisão Chess.com: Brancas 93.1% Pretas 84.3%} 1-0 [Event "87th Tata Steel Challengers 2025"] [Site "Wijk aan Zee"] [Date "2025.02.01"] [Round "12.7"] [White "Gurel, Ediz"] [Black "Vaishali, Rameshbabu"] [Result "1-0"] [ECO "C11"] [WhiteElo "2624"] [BlackElo "2476"] [Annotator "Stockfish 18 - ChessBase"] [PlyCount "153"] [EventDate "2025.??.??"] {[%evp 13,153,0,19,19,32,21,20,28,26,10,8,3,6,7,0,-28,0,0,0,-29,-3,-12,-14,-14,0,-14,54,60,52,52,69,64,54,52,82,82,91,85,121,124,219,195,283,233,300,299,304,287,332,323,329,132,91,68,75,73,70,77,71,7,1,0,0,3,10,9,69,76,173,174,160,161,139,88,192,195,191,191,198,196,175,128,128,128,128,53,180,164,164,164,164,164,162,162,167,157,162,175,175,175,2181,2249,2113,1897,29975,6195,29977,29978,29978,29979,29979,29980,29980,29981,29981,29982,29982,29983,29983,29984,29984,29984,29984,29984,29983,29982,29984,29984,29984,29985,29985,29984,29985,29986,29989,29990,29990,29991,29991,29992,29995,29996]} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 a6 8. Ne2 {C11: French: Classical System: 4 e5 and 4 Bg5 dxe4.} Qb6 {The main line 8...Qb6 scores better than 8...b5.} 9. Qc1 Be7 10. c3 {The position is equal.} f6 11. h4 {11.exf6 is not played anymore.} O-O 12. h5 (12. Rh3 cxd4 13. cxd4 Rf7 14. h5 fxe5 15. fxe5 Nf8 16. Kf2 Bd7 17. Kg1 Rc8 18. Qd2 Qb4 19. Nc3 Na5 20. h6 g6 21. Bg5 Nc4 22. Bxc4 Rxc4 23. Bxe7 Rxe7 24. a3 Qb6 25. Rh4 Bc8 26. Ng5 Nd7 {Tan,J (2507)-Chow,S (2348) England ENG 2025 1-0 (31)}) 12... h6 13. Rh3 Rf7 14. a3 $6 $146 {[%mdl 8] Inaccuracy. Kf2 was best. A relevant novelty.} (14. Kf2 fxe5 15. fxe5 cxd4 16. cxd4 Bg5 17. Kg1 Bxe3+ 18. Qxe3 Qxb2 19. Rc1 Ne7 20. Nh4 Nb6 21. Nc3 Nc4 22. Bxc4 dxc4 23. Rb1 Qc2 24. Rc1 Qb2 25. Rb1 Qc2 26. Rc1 Qb2 {½-½ (26) Van Foreest,J (2699)-Bacrot,E (2660) Linares ESP 2023}) (14. Rg3 f5 (14... Qa5 15. Bd2 Qc7 16. Qc2 b5 17. O-O-O f5 18. Ng5 hxg5 19. fxg5 cxd4 20. cxd4 Nb6 21. g6 Rf8 22. h6 Nc4 23. Kb1 f4 24. Bxf4 gxh6 25. Bxh6 Rf5 26. Rh3 Qa5 27. Qc1 Bd7 28. g4 Rxf1 {Lu,M (2252)-Stella,A (2401) Seville ESP 2024 1-0 (46)}) 15. Kf2 a5 16. a4 Qd8 17. Rh3 b6 18. Kg1 Ba6 19. Qd1 b5 20. dxc5 Bxc5 21. Nfd4 Nxd4 22. Nxd4 Bxd4 23. Qxd4 bxa4 24. Bxa6 Rxa6 25. Qxa4 Nb8 26. Qb5 Qc8 27. Rxa5 Rb7 28. Qc5 Qxc5 {Ilinca,F (2386)-Suarez Gomez,J (2492) Linares ESP 2024 1-0 (41)}) 14... cxd4 15. cxd4 Na5 {aiming for ...Nb3.} 16. Qc2 $6 {Inaccuracy. Rb1 was best.} (16. Rb1) 16... Nc4 17. Bc1 Qa5+ 18. Kd1 {[%CAl Ye1d1,Yd1c2,Yc2b2][%mdl 32]} fxe5 19. fxe5 Ndb6 (19... Qb6) 20. b3 $1 $14 Bd7 $1 {[%CAl Ya8c8]} 21. Qc3 (21. bxc4 $2 Ba4 22. c5 Bxc2+ $19) 21... Qxc3 22. Nxc3 Na5 23. Kc2 Rc8 {[%CAl Ye7g5]} 24. Kb2 Na8 25. Bd3 b5 26. Ne2 Be8 $6 {Inaccuracy. b4 was best.} (26... b4 27. a4) 27. Bd2 Nc6 (27... b4) 28. Rg3 $18 Kh8 29. Nf4 Rxf4 30. Bxf4 Nb6 31. Rc1 Rb8 32. Rh3 $2 {Mistake. Ka2 was best.} (32. Ka2 Bd7 33. Rg6 Rc8 34. Bd2 Bd8 35. Kb2 Rb8 36. Bb1 Nc4+ 37. bxc4 bxc4+) 32... Nc4+ $16 33. bxc4 $6 {Inaccuracy. Ka1 was best.} (33. Ka1) 33... bxc4+ 34. Ka2 cxd3 35. Bd2 {Against Na5} Bd8 36. Bc3 $6 {Inaccuracy. Rd1 was best.} (36. Rb1 $16) (36. Rd1 Ne7) 36... Na5 37. Nd2 $36 {[%CAl Yc1f1][%mdl 2048] White is pushing.} Bb5 38. a4 Bxa4 39. Rxd3 Bb5 (39... Nc6 $1) 40. Rf3 $14 Bb6 $6 {Inaccuracy. Nc6 was best.} (40... Nc6) 41. Bxa5 $1 $18 Bxa5 42. Nb3 Bb4 43. Nc5 $6 {Inaccuracy. Rc7 was best.} (43. Rc7 Be2) 43... Re8 $2 {Mistake. Bc4+ was best.} (43... Bc4+ 44. Ka1 Re8) 44. Kb3 $1 a5 45. Rc2 {Against Be2} Kg8 46. Nd3 $6 {Inaccuracy. Nb7 was best.} (46. Nb7 Rb8 47. Rc7 Bf8 48. Ka2 Bc4+ 49. Ka1 Bb4 50. Nc5 Bd2 51. Nxe6 Bc1) 46... Bc4+ 47. Rxc4 (47. Ka4 $18) 47... dxc4+ $16 48. Kxc4 $18 {[%mdl 4096] Endgame KRB-KRN} Rb8 49. Rf2 $6 {Inaccuracy. Nxb4 was best.} (49. Nxb4 Rxb4+ (49... axb4) 50. Kc5) 49... Rc8+ $6 {Inaccuracy. Be7 was best. This costs Black the game.} (49... Be7) 50. Nc5 Re8 51. Rf3 Rc8 52. Kb5 Rb8+ {[#]} 53. Kc6 $1 {Kd7 is the strong threat.} Rc8+ 54. Kb6 Re8 55. Kb7 Re7+ 56. Kc6 Rf7 $4 {Blunder. Bd2 was best.} (56... Ra7 57. Kb6 (57. Nxe6 a4 $16) 57... Re7) (56... Bd2 57. Kd6 Ra7 58. Na4 Ra6+ 59. Kd7 Be1 60. Nc5 Ra7+ 61. Kxe6 a4 62. Rf1) 57. Rxf7 (57. Nxe6 a4 58. Nc5 (58. d5 a3) 58... a3) 57... Kxf7 {[#] KB-KN} 58. Kd7 $1 g5 $6 {Inaccuracy. g6 was best.} (58... g6 59. Nxe6 a4 60. Nc5 Bxc5 61. e6+ Kg7 62. dxc5 a3 63. e7 a2 64. e8=Q) 59. Nxe6 {White wants to mate with Nc5.} a4 60. Nc5 {White mates.} Bxc5 61. dxc5 {KP-KP. White is a pawn up.} a3 62. e6+ Kg7 63. e7 a2 64. e8=Q (64. e8=B $2 a1=Q (64... a1=B $2 {too greedy.} 65. c6 $18) 65. Bg6 Kf6 $19) 64... a1=Q {KQ-KQ. White is a pawn up.} 65. Qg6+ Kf8 66. Qxh6+ Kf7 67. Qg6+ Kf8 68. Qf5+ Kg8 69. Qxg5+ Kh8 70. c6 {[%CAl Yc5c6,Yc6c7][%mdl 32]} Qd4+ 71. Kc8 Qc4 $6 {Inaccuracy. Qa1 was best.} (71... Qa1 72. Qd5 Qa8+ 73. Kd7 Qa1 74. c7 Qa4+ 75. Kc8 Qf4 76. Kb7 Qb4+ 77. Ka8) 72. Qe5+ Kh7 73. c7 Qa6+ $2 {Checkmate is now unavoidable. Kg8 was best.} (73... Kg8 74. g3 Kf7 75. Qf4+ Qxf4 76. gxf4 Ke7 77. Kb8 Kf6 78. c8=Q Kg7 79. Kb7) 74. Kd8 Qb6 75. Kd7 Qa7 76. Qe4+ Kh8 77. h6 {Weighted Error Value: White=0.13 (very precise) /Black=0.49 Missed win: White=1 --- Mistake: White=4 Black=8 Inaccurate: White=2 Black=2 OK: White=23 Black=20 Best: White=4 Black=4 Strong: White=3 Black=1 Precisão Stockfish 17: Brancas 93% Pretas 91% Precisão Chess.com: Brancas 89.3% Pretas 82.3%} 1-0