Event: Round 4: Kupriyanov, Daniel - Mainka, Romuald
Date: 2025-06-20
White: Kupriyanov, Daniel
WhiteElo: 2112
Black: Mainka, Romuald
BlackTitle: GM
BlackElo: 2351
Result: 1/2-1/2
ECO: B30
Opening: Sicilian Defense: Nyezhmetdinov-Rossolimo Attack
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:30:45] } 1... c5 { [%eval 0.25] [%clk 1:30:41] } 2. Nf3 { [%eval 0.2] [%clk 1:31:06] } 2... Nc6 { [%eval 0.25] [%clk 1:30:10] } 3. Bb5 { [%eval 0.17] [%clk 1:30:41] } 3... Nf6 { [%eval 0.24] [%clk 1:29:20] } 4. Bxc6 { [%eval 0.3] [%clk 1:29:00] } 4... dxc6 { [%eval 0.34] [%clk 1:28:27] } 5. d3 { [%eval 0.33] [%clk 1:29:06] } 5... Bg4 { [%eval 0.44] [%clk 1:16:38] } 6. Nbd2 { [%eval 0.27] [%clk 1:23:38] } 6... Qc7 { [%eval 0.51] [%clk 1:12:33] } 7. h3 { [%eval 0.47] [%clk 1:22:21] } 7... Bh5 { [%eval 0.53] [%clk 1:11:40] } 8. a4 { [%eval 0.48] [%clk 1:20:28] } 8... Nd7 { [%eval 0.49] [%clk 1:10:59] } 9. b3 { [%eval 0.24] [%clk 1:18:42] } 9... f6 { [%eval 0.14] [%clk 1:08:46] } 10. O-O { [%eval 0.19] [%clk 1:14:09] } 10... e5 { [%eval 0.25] [%clk 1:07:46] } 11. Qe1 { [%eval 0.08] [%clk 1:13:51] } 11... g5 { [%eval 0.28] [%clk 0:58:14] } 12. Qe3 { [%eval 0.41] [%clk 1:08:54] } 12... Be7 { [%eval 0.4] [%clk 0:57:50] } 13. Ba3 { [%eval 0.33] [%clk 1:08:03] } 13... Bf7 { [%eval 0.32] [%clk 0:49:41] } 14. Rfb1 { [%eval 0.28] [%clk 1:03:31] } 14... a5 { [%eval 0.35] [%clk 0:43:10] } 15. c3 { [%eval 0.3] [%clk 1:01:19] } 15... Rg8 { [%eval 0.72] [%clk 0:35:49] } 16. Ne1?! { [%eval 0.07] } { Inaccuracy. b4 was best. } { [%clk 0:58:19] } 16... b6?! { [%eval 0.7] } { Inaccuracy. Be6 was best. } { [%clk 0:31:28] } 17. Nc2 { [%eval 0.63] [%clk 0:53:27] } 17... Nf8 { [%eval 0.82] [%clk 0:24:09] } 18. b4 { [%eval 0.82] [%clk 0:47:44] } 18... axb4 { [%eval 0.81] [%clk 0:22:05] } 19. cxb4 { [%eval 0.69] [%clk 0:48:09] } 19... cxb4 { [%eval 0.67] [%clk 0:22:12] } 20. Bxb4 { [%eval 0.73] [%clk 0:48:30] } 20... c5 { [%eval 0.76] [%clk 0:22:12] } 21. Bc3 { [%eval 0.82] [%clk 0:48:43] } 21... Ne6 { [%eval 0.78] [%clk 0:20:52] } 22. Na3?! { [%eval 0.04] } { Inaccuracy. Nc4 was best. } { [%clk 0:35:48] } 22... Nf4 { [%eval 0.15] [%clk 0:18:58] } 23. Ndc4 { [%eval 0.09] [%clk 0:24:03] } 23... Ra6?! { [%eval 0.78] } { Inaccuracy. Rd8 was best. } { [%clk 0:17:23] } 24. a5 { [%eval 0.35] [%clk 0:19:14] } 24... bxa5 { [%eval 0.37] [%clk 0:17:10] } 25. Nb5 { [%eval 0.0] [%clk 0:18:12] } 25... Qd7 { [%eval 0.13] [%clk 0:16:39] } 26. Bxa5 { [%eval 0.18] [%clk 0:17:16] } 26... Kf8?? { [%eval 1.98] } { Blunder. Bxc4 was best. } { [%clk 0:15:53] } 27. Nb6?? { [%eval -0.11] } { Blunder. Bd8 was best. } { [%clk 0:11:58] } 27... Qc6 { [%eval -0.16] [%clk 0:10:26] } 28. Nc4?! { [%eval -0.86] } { Inaccuracy. Nc3 was best. } { [%clk 0:10:18] } 28... Kg7 { [%eval -0.91] [%clk 0:09:39] } 29. g3 { [%eval -0.97] [%clk 0:09:50] } 29... Ne6 { [%eval -0.64] [%clk 0:09:24] } 30. Bc3? { [%eval -2.29] } { Mistake. Qe1 was best. } { [%clk 0:08:01] } 30... Rxa1 { [%eval -2.38] [%clk 0:09:24] } 31. Bxa1 { [%eval -2.39] [%clk 0:08:25] } 31... Rb8 { [%eval -2.29] [%clk 0:08:12] } 32. Nca3 { [%eval -2.21] [%clk 0:05:48] } 32... Qa6 { [%eval -2.14] [%clk 0:07:24] } 33. Qc1 { [%eval -2.32] [%clk 0:04:14] } 33... Qa8?? { [%eval -0.05] } { Blunder. c4 was best. } { [%clk 0:06:01] } 34. Nc4 { [%eval -0.03] [%clk 0:03:36] } 34... Qa6 { [%eval 0.0] [%clk 0:05:27] } 35. Nc3 { [%eval 0.0] [%clk 0:02:33] } 35... Rxb1 { [%eval 0.0] [%clk 0:04:29] } 36. Qxb1 { [%eval 0.0] [%clk 0:02:58] } 36... Nd4 { [%eval 0.17] [%clk 0:03:43] } 37. Nd5 { [%eval 0.02] [%clk 0:03:19] } 37... Bf8 { [%eval 0.34] [%clk 0:03:40] } 38. Bxd4 { [%eval 0.47] [%clk 0:02:59] } 38... cxd4 { [%eval 0.67] [%clk 0:03:54] } 39. Kg2?! { [%eval 0.0] } { Inaccuracy. Qb8 was best. } { [%clk 0:01:45] } 39... Qc6 { [%eval 0.02] [%clk 0:01:30] } 40. Na5 { [%eval 0.0] [%clk 0:00:41] } 40... Qa8 { [%eval 0.0] [%clk 0:01:05] } 41. Qb5 { [%eval 0.0] [%clk 0:00:45] } 41... Qc8 { [%eval 0.0] [%clk 0:30:00] } 42. Nc4 { [%eval 0.0] [%clk 0:27:29] } 42... Be6 { [%eval 0.0] [%clk 0:22:32] } 43. Ncb6?? { [%eval -4.6] } { Blunder. g4 was best. } { [%clk 0:22:30] } 43... Bxh3+ { [%eval -4.19] [%clk 0:22:22] } 1/2-1/2