Event: Round 2: Semen Khanin - Alexander Katz
Site: https://lichess.org
Date: 2023-03-18
White: Semen Khanin
WhiteTitle: IM
Black: Alexander Katz
BlackTitle: IM
Result: 1-0
ECO: E43
Opening: Nimzo-Indian Defense: St. Petersburg Variation
Variant: Standard

1. d4 { [%eval 0.0] [%clk 1:30:55] } 1... Nf6 { [%eval 0.28] [%clk 1:22:50] } 2. c4 { [%eval 0.16] [%clk 1:30:52] } 2... e6 { [%eval 0.23] [%clk 1:23:14] } 3. Nc3 { [%eval 0.05] [%clk 1:31:18] } 3... Bb4 { [%eval 0.25] [%clk 1:23:39] } 4. e3 { [%eval 0.0] [%clk 1:31:43] } 4... b6 { [%eval 0.48] [%clk 1:23:44] } 5. Bd3 { [%eval 0.27] [%clk 1:32:06] } 5... Bb7 { [%eval 0.35] [%clk 1:23:54] } 6. Nf3 { [%eval 0.15] [%clk 1:32:29] } 6... O-O { [%eval 0.34] [%clk 1:24:01] } 7. O-O { [%eval 0.13] [%clk 1:32:53] } 7... c5 { [%eval 0.31] [%clk 1:24:06] } 8. Na4 { [%eval 0.28] [%clk 1:32:25] } 8... cxd4 { [%eval 0.43] [%clk 1:24:05] } 9. exd4 { [%eval 0.25] [%clk 1:32:50] } 9... Re8 { [%eval 0.41] [%clk 1:24:13] } 10. Bf4 { [%eval 0.22] [%clk 1:30:27] } 10... Nc6 { [%eval 0.3] [%clk 1:21:06] } 11. Rc1 { [%eval 0.0] [%clk 1:24:44] } 11... Rc8 { [%eval 0.22] [%clk 1:17:08] } 12. h3 { [%eval 0.01] [%clk 1:19:53] } 12... d5?! { [%eval 0.83] } { Inaccuracy. Bf8 was best. } { [%clk 1:14:35] } 13. c5 { [%eval 0.95] [%clk 1:12:35] } 13... bxc5 { [%eval 0.95] [%clk 1:07:35] } 14. a3 { [%eval 0.8] [%clk 1:11:59] } 14... c4 { [%eval 0.87] [%clk 1:01:23] } 15. axb4 { [%eval 0.8] [%clk 1:12:07] } 15... cxd3 { [%eval 1.01] [%clk 1:01:48] } 16. Qxd3 { [%eval 0.89] [%clk 1:10:31] } 16... Ne4 { [%eval 0.71] [%clk 0:57:06] } 17. b5 { [%eval 0.8] [%clk 1:05:19] } 17... Nb4 { [%eval 0.82] [%clk 0:49:26] } 18. Qb3 { [%eval 0.53] [%clk 0:45:22] } 18... Qa5 { [%eval 0.52] [%clk 0:47:36] } 19. Nc3 { [%eval 0.39] [%clk 0:43:05] } 19... Nd3?! { [%eval 1.12] } { Inaccuracy. Nxc3 was best. } { [%clk 0:46:08] } 20. Ra1 { [%eval 0.86] [%clk 0:41:30] } 20... Qd8 { [%eval 0.94] [%clk 0:46:28] } 21. Be3 { [%eval 0.77] [%clk 0:37:11] } 21... Nxb2 { [%eval 0.86] [%clk 0:45:47] } 22. Nxe4 { [%eval 0.91] [%clk 0:35:26] } 22... dxe4 { [%eval 0.82] [%clk 0:46:07] } 23. Ne5 { [%eval 0.98] [%clk 0:35:39] } 23... Nd3 { [%eval 0.76] [%clk 0:44:43] } 24. Rxa7 { [%eval 0.87] [%clk 0:34:31] } 24... Re7?! { [%eval 1.74] } { Inaccuracy. Bd5 was best. } { [%clk 0:38:20] } 25. Qa3 { [%eval 1.39] [%clk 0:28:11] } 25... Nxe5 { [%eval 1.37] [%clk 0:34:50] } 26. dxe5 { [%eval 1.53] [%clk 0:28:11] } 26... Rd7 { [%eval 1.62] [%clk 0:35:13] } 27. b6 { [%eval 1.43] [%clk 0:27:42] } 27... Rd3?! { [%eval 2.14] } { Inaccuracy. h6 was best. } { [%clk 0:31:58] } 28. Qb4 { [%eval 1.66] [%clk 0:26:05] } 28... Qd7 { [%eval 1.88] [%clk 0:30:46] } 29. Rfa1 { [%eval 1.6] [%clk 0:24:23] } 29... h6 { [%eval 1.72] [%clk 0:30:06] } 30. Kh2 { [%eval 1.64] [%clk 0:22:01] } 30... g5?? { [%eval 4.06] } { Blunder. Kh7 was best. } { [%clk 0:22:57] } 31. R1a5 { [%eval 4.2] [%clk 0:20:46] } 31... g4?! { [%eval 6.05] } { Inaccuracy. Kg7 was best. } { [%clk 0:17:33] } 32. Rc5 { [%eval 5.65] [%clk 0:17:29] } 32... gxh3?! { [%eval 7.93] } { Inaccuracy. Rxc5 was best. } { [%clk 0:09:49] } 33. Rxc8+ { [%eval 7.86] [%clk 0:08:09] } 33... Qxc8 { [%eval 7.6] [%clk 0:10:13] } 34. Qe7 { [%eval 8.04] [%clk 0:08:36] } 34... Qb8 { [%eval 9.47] [%clk 0:05:56] } 35. Rxb7 { [%eval 9.41] [%clk 0:06:46] } 35... Qxe5+ { [%eval 13.5] [%clk 0:06:20] } 36. g3 { [%eval 10.91] [%clk 0:07:13] } 36... Qf5?! { [%eval #14] } { Checkmate is now unavoidable. Qh5 was best. } { [%clk 0:06:27] } 37. Rb8+ { [%eval 36.89] [%clk 0:07:05] } 37... Kh7?! { [%eval #9] } { Checkmate is now unavoidable. Kg7 was best. } { [%clk 0:06:49] } 38. Qf8 { [%eval #8] [%clk 0:07:31] } 38... Kg6 { [%eval #1] [%clk 0:05:40] } 39. Qxh6# { [%clk 0:07:56] } 1-0