Event: Biel Chess Festival 2025 WT 2
Site: Biel, Switzerland
Date: 2025-05-18
White: Cherniaev, Alexander
Black: Petry, Martin
BlackElo: 1940
Result: 1-0
ECO: E73
Opening: King's Indian Defense: Semi-Averbakh System
Variant: Standard
TimeControl: 60' + 30'' / move

1. e4 { [%eval 0.18] [%clk 0:58:46] } 1... g6 { [%eval 0.5] [%clk 1:00:47] } 2. d4 { [%eval 0.48] [%clk 0:58:20] } 2... Bg7 { [%eval 0.48] [%clk 1:01:10] } 3. c4 { [%eval 0.46] [%clk 0:57:24] } 3... d6 { [%eval 0.55] [%clk 1:00:54] } 4. Nc3 { [%eval 0.5] [%clk 0:57:46] } 4... Nf6 { [%eval 0.55] [%clk 1:00:57] } 5. Be2 { [%eval 0.51] [%clk 0:57:50] } 5... O-O { [%eval 0.48] [%clk 1:00:59] } 6. Be3 { [%eval 0.5] [%clk 0:58:14] } 6... Nbd7 { [%eval 0.65] [%clk 1:00:46] } 7. Nf3 { [%eval 0.57] [%clk 0:56:56] } 7... e5 { [%eval 0.55] [%clk 1:00:29] } 8. d5 { [%eval 0.78] [%clk 0:56:57] } 8... Ne8 { [%eval 1.2] [%clk 0:58:32] } 9. g4 { [%eval 1.17] [%clk 0:56:18] } 9... a5 { [%eval 1.35] [%clk 0:57:57] } 10. h4 { [%eval 1.25] [%clk 0:53:52] } 10... Nc5 { [%eval 1.28] [%clk 0:56:36] } 11. Rg1 { [%eval 1.25] [%clk 0:52:38] } 11... Nf6 { [%eval 1.75] [%clk 0:52:05] } 12. Nd2 { [%eval 1.73] [%clk 0:52:07] } 12... Bd7 { [%eval 1.93] [%clk 0:47:28] } 13. h5 { [%eval 1.83] [%clk 0:51:51] } 13... c6 { [%eval 1.91] [%clk 0:46:18] } 14. h6 { [%eval 1.69] [%clk 0:51:43] } 14... Bh8 { [%eval 1.83] [%clk 0:46:25] } 15. g5 { [%eval 1.83] [%clk 0:42:22] } 15... Ne8 { [%eval 1.62] [%clk 0:46:12] } 16. Nf3 { [%eval 1.13] [%clk 0:41:48] } 16... Qe7 { [%eval 1.62] [%clk 0:44:22] } 17. Qd2 { [%eval 1.76] [%clk 0:39:02] } 17... b5? { [%eval 3.27] } { Mistake. f5 was best. } { [%clk 0:34:17] } 18. Bxc5 { [%eval 3.19] [%clk 0:38:41] } 18... b4 { [%eval 3.25] [%clk 0:30:01] } 19. Be3?! { [%eval 2.01] } { Inaccuracy. Na4 was best. } { [%clk 0:36:37] } 19... bxc3 { [%eval 2.03] [%clk 0:30:24] } 20. Qxc3 { [%eval 1.93] [%clk 0:36:14] } 20... cxd5 { [%eval 2.1] [%clk 0:27:25] } 21. cxd5 { [%eval 2.1] [%clk 0:37:04] } 21... f5 { [%eval 2.39] [%clk 0:27:17] } 22. gxf6?! { [%eval 1.72] } { Inaccuracy. Nd2 was best. } { [%clk 0:34:24] } 22... Nxf6 { [%eval 2.14] [%clk 0:24:02] } 23. Ng5 { [%eval 2.08] [%clk 0:34:46] } 23... Rfc8 { [%eval 2.12] [%clk 0:22:56] } 24. Qd2 { [%eval 1.83] [%clk 0:35:05] } 24... Ne8 { [%eval 2.22] [%clk 0:21:30] } 25. Kf1 { [%eval 2.25] [%clk 0:31:26] } 25... Bf6 { [%eval 2.23] [%clk 0:20:09] } 26. Kg2 { [%eval 2.32] [%clk 0:31:44] } 26... Bxg5 { [%eval 2.25] [%clk 0:17:18] } 27. Bxg5 { [%eval 2.3] [%clk 0:32:09] } 27... Qf8 { [%eval 2.62] [%clk 0:16:33] } 28. Rh1 { [%eval 2.63] [%clk 0:30:57] } 28... Nf6 { [%eval 2.35] [%clk 0:16:36] } 29. Rh4 { [%eval 2.27] [%clk 0:31:11] } 29... Rc5 { [%eval 2.39] [%clk 0:15:28] } 30. Rc1 { [%eval 2.27] [%clk 0:31:27] } 30... Rac8 { [%eval 2.59] [%clk 0:13:27] } 31. Rxc5 { [%eval 2.61] [%clk 0:31:43] } 31... Rxc5 { [%eval 2.41] [%clk 0:13:55] } 32. b3 { [%eval 2.53] [%clk 0:27:29] } 32... a4?! { [%eval 3.27] } { Inaccuracy. Rc7 was best. } { [%clk 0:07:53] } 33. b4 { [%eval 3.15] [%clk 0:25:20] } 33... Rc8 { [%eval 3.49] [%clk 0:08:17] } 34. a3 { [%eval 2.92] [%clk 0:25:38] } 34... Nh5 { [%eval 2.86] [%clk 0:07:47] } 35. Bxh5 { [%eval 2.82] [%clk 0:15:52] } 35... gxh5 { [%eval 3.07] [%clk 0:08:11] } 36. f3 { [%eval 2.99] [%clk 0:16:08] } 36... Qf7 { [%eval 2.96] [%clk 0:07:13] } 37. Kg3 { [%eval 2.36] [%clk 0:16:15] } 37... Qg6 { [%eval 2.76] [%clk 0:06:52] } 38. Rh2? { [%eval 1.18] } { Mistake. Rh1 was best. } { [%clk 0:15:19] } 38... h4+?? { [%eval 3.43] } { Blunder. Rf8 was best. } { [%clk 0:04:00] } 39. Rxh4?? { [%eval 0.15] } { Blunder. Kxh4 was best. } { [%clk 0:13:26] } 39... Kh8?? { [%eval 3.16] } { Blunder. Rc2 was best. } { [%clk 0:03:50] } 40. Kh2 { [%eval 2.95] [%clk 0:10:06] } 40... Rg8? { [%eval 4.99] } { Mistake. Kg8 was best. } { [%clk 0:03:55] } 41. f4 { [%eval 4.95] [%clk 0:10:33] } 41... Rc8 { [%eval 5.89] [%clk 0:02:33] } 42. f5 { [%eval 5.82] [%clk 0:08:24] } 42... Bxf5 { [%eval 5.5] [%clk 0:02:44] } 43. exf5 { [%eval 5.35] [%clk 0:08:50] } 43... Qxf5 { [%eval 6.28] [%clk 0:03:09] } 44. Rf4 { [%eval 5.85] [%clk 0:09:06] } 44... exf4?? { [%eval #7] } { Checkmate is now unavoidable. Qg6 was best. } { [%clk 0:03:12] } 45. Qd4+ { [%eval #6] [%clk 0:09:32] } 1-0