[Event "OOBS 17: The Blackjack Swiss"] [Site "https://lichess.org/yS4tRk5J"] [Date "2023.05.21"] [White "AdamChess2002"] [Black "Klimenko_Sergey_IM"] [Result "0-1"] [UTCDate "2023.05.21"] [UTCTime "15:09:20"] [WhiteElo "2515"] [BlackElo "2403"] [WhiteRatingDiff "-14"] [BlackRatingDiff "+17"] [BlackTitle "IM"] [Variant "Standard"] [TimeControl "480+0"] [ECO "B54"] [Opening "Sicilian Defense: Prins Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 { B54 Sicilian Defense: Prins Variation } e6 6. c4 Nc6 7. Nc3 Be7 8. Be3 O-O 9. Qd2 d5 10. exd5 exd5 11. cxd5?! { (0.20 → -0.35) Inaccuracy. O-O-O was best. } (11. O-O-O Nxd4 12. Qxd4 dxc4 13. Qe5 Qe8 14. Bxc4 Bb4 15. Bd4 Qxe5 16. Bxe5 Bf5 17. Rhe1 Rac8) 11... Nxd5 12. Nxd5 Qxd5 13. Nxc6 Qxc6 14. Rc1 Qg6?! { (-0.92 → -0.24) Inaccuracy. Qa4 was best. } (14... Qa4) 15. Bd3 Bf5 16. Bxf5 Qxf5 17. O-O Rfd8 18. Qf2 a6 19. Rc7 Rd7?! { (-0.64 → -0.05) Inaccuracy. Bf6 was best. } (19... Bf6) 20. Rfc1 Rad8 21. Rxd7 Qxd7 22. Qc2 Bf6 23. Qc7?! { (-0.21 → -0.95) Inaccuracy. Bb6 was best. } (23. Bb6 Re8) 23... h6?! { (-0.95 → 0.00) Inaccuracy. Qb5 was best. } (23... Qb5 24. b3) 24. Qxd7 Rxd7 25. b3 h5 26. Kf2 Kh7 27. Ke2 Kg6 28. Rc4 Kf5 29. g4+ hxg4 30. fxg4+ Ke6 31. Re4+ Kd5 32. Kd3 Rc7 33. Rc4 Rd7 34. Rc5+ Ke6+ 35. Ke4 Re7 36. g5?? { (0.00 → -3.59) Blunder. Rd5 was best. } (36. Rd5 Rc7 37. Bc5 Rc6 38. a4 g6 39. a5 Bc3 40. b4 f5+ 41. gxf5+ gxf5+ 42. Rxf5 Bxb4) 36... Kd6+ 37. Kd3 Rxe3+ 38. Kxe3 Kxc5 39. gxf6 g6 40. Kf4 Kd5 41. Kg5 Ke6 42. b4 Ke5 43. a4?! { (-4.50 → -6.11) Inaccuracy. Kg4 was best. } (43. Kg4 Kxf6 44. Kf4 Ke6 45. Ke4 g5 46. Kf3 f5 47. Ke2 Kd5 48. Kd3 f4 49. a4 b6) 43... b6 44. a5 bxa5 45. bxa5 Ke6 46. h3 Ke5 47. h4 Ke6 48. h5 gxh5 49. Kxh5 Kxf6 50. Kg4 Ke6 51. Kf3 Kd5 52. Kf4 Kc5 53. Kf5 Kb5 54. Kf6 Kxa5 55. Kxf7 Kb4 56. Ke6 a5 57. Kd5 a4 58. Kd4 a3 59. Kd3 a2 60. Kc2 a1=Q 61. Kd2 Qc3+ 62. Ke2 Qg3 63. Kd2 Qf3 64. Kc2 Qe2+ 65. Kc1 Kb3 66. Kb1 Qe1# { Black wins by checkmate. } 0-1