[Event "2023 Winter Marathon"] [Site "https://lichess.org/lov8Az0e"] [Date "2023.12.29"] [White "Siberian_d4"] [Black "gkoul"] [Result "1-0"] [UTCDate "2023.12.29"] [UTCTime "08:13:31"] [WhiteElo "2150"] [BlackElo "2408"] [WhiteRatingDiff "+12"] [BlackRatingDiff "-17"] [Variant "Standard"] [TimeControl "180+0"] [ECO "A70"] [Opening "Benoni Defense: Classical Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 c5?! { (0.13 → 0.98) Inaccuracy. Nf6 was best. } (1... Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3) 2. d5 Nf6 3. c4 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 { A70 Benoni Defense: Classical Variation } Bg7 8. Bd3 O-O 9. O-O a6 10. a4 Nfd7?! { (0.46 → 1.37) Inaccuracy. Bg4 was best. } (10... Bg4 11. h3 Bxf3 12. Qxf3 Nbd7 13. Bf4 Qe7 14. Qe2 Nh5 15. Bh2 Bd4 16. Kh1 Rae8 17. a5) 11. Qc2 Re8 12. Bg5 Qa5 13. Bf4 Ne5 14. Nxe5 Bxe5 15. Bxe5 Rxe5 16. f4 Re8 17. Rae1?? { (2.20 → 0.39) Blunder. Qf2 was best. } (17. Qf2 Nd7) 17... Nd7? { (0.39 → 1.65) Mistake. c4 was best. } (17... c4 18. Be2) 18. b3 b5 19. axb5 axb5 20. Bxb5 Ba6? { (2.10 → 4.03) Mistake. Qb6 was best. } (20... Qb6 21. Kh1 Re7 22. e5 dxe5 23. Bc6 Rb8 24. Qf2 Ba6 25. Qh4) 21. Bxd7 Red8 22. Bc6 Rab8 23. Rf3 Qb4 24. Rfe3 Qxb3 25. Qxb3 Rxb3 26. e5 dxe5 27. fxe5 Bc8 28. e6 fxe6 29. dxe6 Bxe6 30. Rxe6 Rxc3 31. Re8+ Rxe8 32. Rxe8+ Kg7 33. Rc8 Rc2 34. Bf3 c4 35. Bd5 c3 36. Be4 Rc1+ 37. Kf2 h6 38. h3 Kf6 39. Ke3 Ke5 40. Bxg6 Kf6 41. Be4 Ke5 42. Bf3 Kf5 43. Kd3 Kf4 44. Rxc3 Ra1 45. Rc4+ Kg3 46. Rg4+ Kh2 47. Ke4 h5 48. Rg5 Ra4+ 49. Kf5 Ra5+ 50. Kg6 Ra6+ 51. Kxh5 Kg1 52. h4 Ra1 53. Kg4 Kf2 54. Rf5 Ke3 55. Rf4 Ra8? { (7.70 → Mate in 9) Checkmate is now unavoidable. Ra7 was best. } (55... Ra7 56. Re4+ Kf2 57. Re2+ Kg1 58. h5 Rf7 59. Re6 Kf2 60. Be4 Rg7+ 61. Kh4 Ra7 62. h6) 56. Rf5? { (Mate in 9 → 7.94) Lost forced checkmate sequence. Bxa8 was best. } (56. Bxa8 Kd2 57. h5 Ke3 58. h6 Kd2 59. h7 Kc3 60. h8=Q+ Kc2 61. Qa1 Kd2 62. Qb2+ Ke1) 56... Rh8 57. h5 Kd4 58. Rf6 Ke5 59. Rg6 Rf8 60. h6 Rh8 61. Kg5 Rh7 62. Rg7 Rh8 63. h7 Ke6 64. Kg6 Ke5?! { (34.93 → Mate in 14) Checkmate is now unavoidable. Rf8 was best. } (64... Rf8 65. Rf7 Rh8 66. g4 Re8 67. Kg7 Rc8 68. Bh1 Rc4 69. h8=Q Rxg4+ 70. Kf8 Rg6 71. Re7+) 65. Rg8 Rxh7 66. Kxh7 Kf4 67. Rf8+ Ke3 68. g4 Kd4 69. g5 Ke5 70. g6 Kd4 71. g7 Ke3 72. g8=Q Kf2 73. Bh5+ Ke3 74. Be8 Kd4 75. Qg5 Ke4 76. Rf4+ Kd3 77. Qg3+ Ke2 78. Rf2+ Ke1 79. Qg1# { White wins by checkmate. } 1-0