CohenChessClub.com

[Event "October Chess Megatournament"] [Site "https://cohenchessclub.com/58dk4l42"] [Date "2024.10.20"] [White "Sasha"] [Black "Summer"] [Result "1-0"] [UTCDate "2024.10.20"] [UTCTime "19:00:00"] [WhiteElo "1733"] [BlackElo "1325"] [WhiteRatingDiff "+1"] [BlackRatingDiff "-2"] [WhiteTitle "IM🧁"] [BlackTitle "🥟"] [Variant "Standard"] [TimeControl "600+1"] [ECO "D02"] [Opening "Queen's Pawn Game: Chigorin Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. d4 Nc6?! { (0.32 → 0.92) Inaccuracy. Nf6 was best. } (1... Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2) 2. Nf3 d5 { D02 Queen's Pawn Game: Chigorin Variation } 3. Bf4 f6 4. e3 e5? { (0.67 → 1.81) Mistake. Bg4 was best. } (4... Bg4 5. Bg3 e5 6. dxe5 fxe5 7. Bb5 e4 8. Qd4 Bd7 9. Bxc6 bxc6 10. Ne5 Nf6 11. O-O) 5. dxe5 fxe5 6. Nxe5 Bd6 7. Nxc6 bxc6 8. Bxd6 cxd6 9. c3?! { (2.35 → 1.43) Inaccuracy. c4 was best. } (9. c4) 9... c5?? { (1.43 → 4.76) Blunder. Nf6 was best. } (9... Nf6 10. Be2 Rb8 11. b3 Ne4 12. O-O O-O 13. Qd4 Qg5 14. f4 Qe7 15. Nd2 Nxd2 16. Qxd2) 10. Qxd5 Bg4? { (4.26 → 8.69) Mistake. Rb8 was best. } (10... Rb8 11. Qc6+) 11. Qe4+ Be6 12. Qxe6+ Ne7 13. Bb5+ Kf8 14. Bc4 d5 15. Bb5 Rb8 16. Qa6 Rb6 17. Qa5 Qb8 18. a4 a6 19. Bxa6 Rxb2 20. Qxc5?? { (9.21 → 0.00) Blunder. O-O was best. } (20. O-O Qa8 21. Na3 h5 22. Qc7 Qb8 23. Qxc5 h4 24. Bd3 Rd2 25. Nb5 h3 26. g3 Rh6) 20... Rxb1+ 21. Ke2?? { (0.00 → -5.87) Blunder. Rxb1 was best. } (21. Rxb1 Qxb1+ 22. Kd2 Qxh1 23. Qc7 Qb1 24. Qd8+ Kf7 25. Qxh8 Qb2+ 26. Kd3 Qb3 27. Kd2) 21... Rxh1?? { (-5.87 → 6.47) Blunder. Qb2+ was best. } (21... Qb2+ 22. Kf3) 22. Rxh1 Qb2+ 23. Kd3 Qb8?! { (5.07 → 7.85) Inaccuracy. Qxf2 was best. } (23... Qxf2 24. Qc7 Qxg2 25. Re1 Qg6+ 26. Kd2 Qxa6 27. Qd8+ Kf7 28. Qxh8 Ng8 29. Qxh7 Qxa4 30. Qh5+) 24. Bb5 Qd8 25. Qd4 Qc8 26. Qf4+ Kg8 27. Rb1 Ng6 28. Qf3?? { (8.92 → -5.76) Blunder. Qd6 was best. } (28. Qd6 Qf5+ 29. Kd4 Qe4+ 30. Kc5 Kf7 31. Qxd5+ Qxd5+ 32. Kxd5 Ne7+ 33. Kc4 Rc8+ 34. Kb3 Nd5) 28... Ne5+ 29. Ke2 Nxf3 30. Kxf3?! { (-5.94 → -9.07) Inaccuracy. gxf3 was best. } (30. gxf3 Kf7) 30... Qxc3?! { (-9.07 → -5.99) Inaccuracy. Qf5+ was best. } (30... Qf5+ 31. Ke2 Qxb1 32. g4 Qc2+ 33. Ke1 Kf7 34. h3 Qxc3+ 35. Ke2 Qc2+ 36. Ke1 Ke6 37. Bf1) 31. Be8 Qf6+ 32. Kg3?! { (-6.15 → -9.61) Inaccuracy. Ke2 was best. } (32. Ke2 g6) 32... Qe5+ 33. Kf3 Qxe8 34. Ra1 Qe5 35. a5 d4 36. exd4 Qxd4 37. Ra3 Qd5+ 38. Ke2 Qxg2 39. a6 Kf7 40. a7 h5 41. Ke3? { (-8.25 → Mate in 8) Checkmate is now unavoidable. h3 was best. } (41. h3 Ra8) 41... h4?! { (Mate in 8 → -10.92) Lost forced checkmate sequence. Re8+ was best. } (41... Re8+ 42. Kd2 Qxf2+ 43. Kd3 Qe2+ 44. Kd4 Re4+ 45. Kc5 Qc4+ 46. Kb6 Qb4+ 47. Kc7 Rc4+ 48. Kd8) 42. f3?! { (-10.92 → Mate in 8) Checkmate is now unavoidable. Ke2 was best. } (42. Ke2 Qg4+) 42... Qxh2? { (Mate in 8 → -9.57) Lost forced checkmate sequence. Re8+ was best. } (42... Re8+ 43. Kd3 Qxf3+ 44. Kd4 Qf4+ 45. Kd5 Re5+ 46. Kd6 Qd4+ 47. Kc6 Qc4+ 48. Kb7 Rb5+ 49. Ka8) 43. a8=Q Rxa8 44. Rxa8 Qg3 45. Ra7+ Kg6 46. Ra6+ Kh7 47. Ra4 g5 48. Rg4 Qh3 49. Rxg5 Qe6+ 50. Kf2 Qb6+ 51. Kg2 Qh6?? { (-7.94 → -2.47) Blunder. Kh6 was best. } (51... Kh6) 52. Rg4 h3+ 53. Kh2 Kh8?! { (-2.40 → -1.58) Inaccuracy. Qh5 was best. } (53... Qh5) 54. Rg3 Qh5? { (-1.52 → 0.00) Mistake. Qf4 was best. } (54... Qf4 55. Kxh3 Qe3 56. Rg4 Qf2 57. Rh4+ Kg8 58. Rf4 Kg7 59. Rg4+ Kh6 60. Rh4+ Kg6 61. Rg4+) 55. Rxh3 Qh7 56. Rxh7+ Kxh7 57. Kg3 Kg7 58. Kg4 Kf6?? { (0.19 → 57.79) Blunder. Kg6 was best. } (58... Kg6 59. f4) 59. f4?? { (57.79 → 0.00) Blunder. Kf4 was best. } (59. Kf4 Ke6 60. Kg5 Ke5 61. f4+ Ke4 62. f5 Kd3 63. f6 Ke3 64. f7 Kd4 65. Kg6 Kc4) 59... Kf7?? { (0.00 → 54.63) Blunder. Kg6 was best. } (59... Kg6 60. f5+ Kf6 61. Kf4 Ke7 62. Ke5 Kf7 63. Kd5 Ke7 64. Kd4 Kf8 65. Ke4 Kf7 66. Ke5) 60. Kg5?? { (54.63 → 0.00) Blunder. Kf5 was best. } (60. Kf5) 60... Kf8?? { (0.00 → Mate in 15) Checkmate is now unavoidable. Kg7 was best. } (60... Kg7 61. f5 Kf7 62. f6 Kf8 63. Kf5 Kf7 64. Ke5 Kf8) 61. f5?? { (Mate in 15 → 0.00) Lost forced checkmate sequence. Kf6 was best. } (61. Kf6 Ke8 62. Ke6 Kd8 63. f5 Kc7 64. f6 Kc6 65. f7 Kc5 66. f8=Q+ Kd4 67. Qf1 Kc3) 61... Kg7 62. f6+ Kg8?? { (0.00 → Mate in 11) Checkmate is now unavoidable. Kf8 was best. } (62... Kf8 63. Kg6 Kg8 64. Kf5 Kf8 65. Ke6 Ke8 66. Kd6 Kf7 67. Ke5 Kf8 68. Ke6) 63. Kg6 Kf8 64. f7 Ke7 65. Kg7 Kd8 66. f8=Q+ Kd7 67. Qf6 Ke8 68. Kg8 Kd7 69. Qe5 Kc6 70. Qd4 Kb5 71. Qc3 Ka4 72. Qb2 Ka5 73. Qb3 Ka6 74. Qb4 Ka7 75. Qb5 Ka8 76. Kf7 Ka7 77. Ke8 Ka8 78. Kd8 Ka7 79. Kc8 Ka8 80. Qb7# { White wins by checkmate. } 1-0