[Event "OOBS 17: The Blackjack Swiss"] [Site "https://lichess.org/zWFZzmKF"] [Date "2023.05.21"] [White "AlexTriapishko"] [Black "Zu_Cho_Chi"] [Result "1-0"] [UTCDate "2023.05.21"] [UTCTime "15:26:26"] [WhiteElo "2731"] [BlackElo "2511"] [WhiteRatingDiff "+9"] [BlackRatingDiff "-4"] [WhiteTitle "IM"] [Variant "Standard"] [TimeControl "480+0"] [ECO "A01"] [Opening "Nimzo-Larsen Attack: Modern Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. b3 e5 2. Bb2 Nc6 3. e3 { A01 Nimzo-Larsen Attack: Modern Variation } Nf6 4. c4 d5 5. cxd5 Nxd5 6. a3 a6 7. Qc2 Be6 8. Nf3 f6 9. Be2 Bd6 10. O-O O-O 11. d3 Qe7 12. Nbd2 Qf7 13. b4 Rfd8 14. Ne4 h6 15. Kh1 Bf8 16. Rg1 a5?! { (0.50 → 1.37) Inaccuracy. Nb6 was best. } (16... Nb6 17. Raf1) 17. b5 Na7 18. d4 f5? { (1.54 → 3.09) Mistake. exd4 was best. } (18... exd4 19. Nxd4 c6 20. bxc6 Nxc6 21. Nxe6 Qxe6 22. Bc4 Nce7 23. Ng3 Rac8 24. Qe2 Qc6 25. Rgc1) 19. Nxe5 Qe8 20. Nc5 Bxc5 21. Qxc5?! { (3.18 → 2.11) Inaccuracy. dxc5 was best. } (21. dxc5 Nf6 22. a4 Ne4 23. Bd3 Nc8 24. c6 bxc6 25. Bxe4 fxe4 26. Nxc6 Rd5 27. Nd4 Bd7) 21... b6 22. Qc2 Nxb5 23. Nc6 Nd6 24. Nxd8 Rxd8 25. Bf3?! { (2.63 → 1.88) Inaccuracy. Bd3 was best. } (25. Bd3 Qf7 26. Rge1 b5 27. f3 Nb6 28. Bc3 Bb3 29. Qc1 Ndc4 30. e4 c6 31. exf5 a4) 25... c6 26. e4 fxe4 27. Bxe4 Nxe4 28. Qxe4 Nf6 29. Qe3 Ng4?! { (1.69 → 2.33) Inaccuracy. Bd5 was best. } (29... Bd5 30. Rge1 Qxe3 31. Rxe3 Ne4 32. f3 Nd6 33. Re7 Nf5 34. Re2 Nd6 35. h3 b5 36. Bc3) 30. Qg3 Qh5?! { (2.29 → 3.16) Inaccuracy. Qf7 was best. } (30... Qf7 31. Rge1 Nf6 32. Bc1 Nh5 33. Qh4 Rf8 34. f3 Bd5 35. Qg4 Nf6 36. Qf4 Ra8 37. Bd2) 31. Rge1 Bd5 32. f3 Nf6 33. Re7 Qg5 34. Qxg5 hxg5 35. h3 b5 36. Bc3 Ra8 37. Bd2 Kf8?! { (3.07 → 3.99) Inaccuracy. Nh5 was best. } (37... Nh5 38. Rae1 Nf4 39. Re8+ Rxe8 40. Rxe8+ Kf7 41. Rb8 a4 42. h4 Ne6 43. h5 Nf4 44. Kh2) 38. Rae1?! { (3.99 → 3.15) Inaccuracy. Rb7 was best. } (38. Rb7 Kg8 39. Bxg5 Nh5 40. Kh2 Re8 41. Rd1 Re2 42. Rd2 Re1 43. h4 Ra1 44. g4 b4) 38... b4 39. axb4 a4 40. Bxg5 a3 41. R7e2 a2 42. Ra1 Ra4 43. Rb2 Nd7 44. b5 cxb5 45. Rxb5 Bc4 46. Rb7 Nf6 47. Bxf6 gxf6 48. Kh2 Bd5 49. Rb5 Rxd4?! { (3.46 → 4.95) Inaccuracy. Bc4 was best. } (49... Bc4 50. Rb2 Bd5 51. Rc2 Bb3 52. Rd2 Bd5 53. Kg3 Kg7 54. h4 Kh6 55. Kf4 Kg6 56. Kg4) 50. Rxd5 Rxd5 51. Rxa2 Kg7 52. Ra4 Kg6 53. g4 f5 54. Kg3 fxg4 55. hxg4 Rd6 56. Ra5 Rb6?! { (5.98 → 8.60) Inaccuracy. Rd3 was best. } (56... Rd3 57. Kf4 Rb3 58. Ra6+ Kg7 59. g5 Rb4+ 60. Kf5 Rb5+ 61. Kg4 Rb4+ 62. f4 Rc4 63. Re6) 57. f4 Rb3+ 58. Kh4 Rb6 59. f5+ Kf6 60. g5+ Kg7 61. Kh5 Rb8?! { (12.59 → Mate in 29) Checkmate is now unavoidable. Rb7 was best. } (61... Rb7 62. f6+ Kf7 63. Kh6 Rb6 64. Ra7+ Ke6 65. Kg7 Kf5 66. Ra5+ Ke4 67. f7 Rb7 68. g6) 62. Ra7+ Kg8 63. Kg6 Rb6+ 64. f6 Rb8 65. Rg7+ Kh8 66. Rh7+ Kg8 67. f7+ Kf8 68. Rh8+ Ke7 69. Rxb8 Ke6 70. f8=Q Kd5 71. Qf5+ Kd6 72. Rb6+ Kc7 73. Qc5+ Kd7 74. Qd6+ Ke8 75. Rb8# { White wins by checkmate. } 1-0