Event: Round 1: Collyer, David - Kovalskyi, Roman
Date: 2025-02-18
White: Collyer, David
WhiteElo: 1929
Black: Kovalskyi, Roman
BlackElo: 2240
Result: 0-1
ECO: B36
Opening: Sicilian Defense: Accelerated Dragon, Maróczy Bind
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:30:57] } 1... c5 { [%eval 0.25] [%clk 1:30:57] } 2. Nf3 { [%eval 0.2] [%clk 1:31:18] } 2... g6 { [%eval 0.34] [%clk 1:31:22] } 3. d4 { [%eval 0.46] [%clk 1:30:48] } 3... cxd4 { [%eval 0.38] [%clk 1:31:46] } 4. Nxd4 { [%eval 0.35] [%clk 1:31:14] } 4... Nc6 { [%eval 0.47] [%clk 1:32:09] } 5. c4 { [%eval 0.4] [%clk 1:31:07] } 5... Nf6 { [%eval 0.46] [%clk 1:32:15] } 6. Nc3 { [%eval 0.41] [%clk 1:31:12] } 6... d6 { [%eval 0.41] [%clk 1:32:39] } 7. Be2 { [%eval 0.36] [%clk 1:30:55] } 7... Nxd4 { [%eval 0.47] [%clk 1:32:32] } 8. Qxd4 { [%eval 0.49] [%clk 1:31:14] } 8... Bg7 { [%eval 0.34] [%clk 1:32:56] } 9. Be3 { [%eval 0.4] [%clk 1:29:56] } 9... O-O { [%eval 0.48] [%clk 1:32:53] } 10. Qd2 { [%eval 0.32] [%clk 1:29:59] } 10... a5 { [%eval 0.33] [%clk 1:31:56] } 11. O-O { [%eval 0.28] [%clk 1:26:18] } 11... a4 { [%eval 0.3] [%clk 1:30:24] } 12. f3 { [%eval 0.01] [%clk 1:23:01] } 12... Qa5 { [%eval 0.01] [%clk 1:29:11] } 13. Rac1 { [%eval 0.0] [%clk 1:17:27] } 13... Be6 { [%eval 0.02] [%clk 1:29:02] } 14. Nd5 { [%eval 0.0] [%clk 1:05:49] } 14... Qxd2 { [%eval 0.01] [%clk 1:29:23] } 15. Nxe7+ { [%eval 0.0] [%clk 1:05:06] } 15... Kh8 { [%eval 0.03] [%clk 1:29:48] } 16. Bxd2 { [%eval 0.02] [%clk 1:05:28] } 16... Rfe8 { [%eval 0.0] [%clk 1:29:54] } 17. Nd5 { [%eval 0.0] [%clk 1:05:02] } 17... Nxd5 { [%eval 0.0] [%clk 1:30:17] } 18. cxd5 { [%eval 0.0] [%clk 1:04:39] } 18... Bxd5 { [%eval 0.0] [%clk 1:30:42] } 19. Bb5 { [%eval 0.01] [%clk 1:04:02] } 19... Re5 { [%eval 0.06] [%clk 1:24:58] } 20. Bc3 { [%eval -0.08] [%clk 0:46:47] } 20... Bxa2 { [%eval -0.12] [%clk 1:25:23] } 21. Bxe5 { [%eval -0.17] [%clk 0:47:07] } 21... Bxe5 { [%eval -0.14] [%clk 1:25:44] } 22. Rc2?! { [%eval -0.74] } { Inaccuracy. Rf2 was best. } { [%clk 0:44:19] } 22... Ra5 { [%eval -0.75] [%clk 1:24:45] } 23. Bd7 { [%eval -1.28] [%clk 0:40:41] } 23... b5?! { [%eval -0.6] } { Inaccuracy. Bb3 was best. } { [%clk 1:12:06] } 24. g3 { [%eval -1.01] [%clk 0:37:50] } 24... b4 { [%eval -1.0] [%clk 0:46:38] } 25. Rd2 { [%eval -0.94] [%clk 0:35:57] } 25... Bb3 { [%eval -1.05] [%clk 0:41:50] } 26. f4 { [%eval -1.08] [%clk 0:34:11] } 26... Bf6 { [%eval -1.1] [%clk 0:42:15] } 27. Rf3?? { [%eval -3.1] } { Blunder. Rb1 was best. } { [%clk 0:23:45] } 27... Ra7?? { [%eval -0.28] } { Blunder. Bc4 was best. } { [%clk 0:12:46] } 28. Bc6 { [%eval -0.62] [%clk 0:23:36] } 28... Be6 { [%eval -0.1] [%clk 0:01:58] } 29. f5 { [%eval -0.1] [%clk 0:18:07] } 29... gxf5 { [%eval -0.01] [%clk 0:02:01] } 30. exf5 { [%eval -0.16] [%clk 0:18:30] } 30... Bc4 { [%eval -0.01] [%clk 0:01:50] } 31. Rxd6 { [%eval 0.0] [%clk 0:17:41] } 31... Bxb2 { [%eval 0.03] [%clk 0:01:39] } 32. f6 { [%eval -0.18] [%clk 0:18:07] } 32... Bxf6 { [%eval -0.18] [%clk 0:01:13] } 33. Rfxf6 { [%eval -0.24] [%clk 0:16:28] } 33... a3 { [%eval -0.34] [%clk 0:01:13] } 34. Rd1 { [%eval -0.32] [%clk 0:15:43] } 34... b3 { [%eval -0.34] [%clk 0:00:39] } 35. Rf2?? { [%eval -2.37] } { Blunder. Rf4 was best. } { [%clk 0:14:31] } 35... b2 { [%eval -2.41] [%clk 0:00:41] } 36. Rb1? { [%eval -3.98] } { Mistake. Be4 was best. } { [%clk 0:13:00] } 36... Ra6 { [%eval -3.98] [%clk 0:00:34] } 37. Be4 { [%eval -4.01] [%clk 0:10:49] } 37... Rb6 { [%eval -3.95] [%clk 0:00:58] } 38. Rfxb2?! { [%eval -5.21] } { Inaccuracy. Kh1 was best. } { [%clk 0:05:03] } 38... Rxb2 { [%eval -4.94] [%clk 0:00:32] } 39. Rxb2 { [%eval -5.62] [%clk 0:05:07] } 39... axb2 { [%eval -5.55] [%clk 0:00:57] } 40. Bb1 { [%eval -5.3] [%clk 0:05:32] } 40... Kg7 { [%eval -5.32] [%clk 0:00:50] } 41. Kf2 { [%eval -5.28] [%clk 0:05:58] } 41... Kf6 { [%eval -5.41] [%clk 0:00:54] } 42. Ke3 { [%eval -5.61] [%clk 0:05:32] } 42... Ke5 { [%eval -5.79] [%clk 0:00:51] } 43. g4 { [%eval -5.94] [%clk 0:05:38] } 43... Be6 { [%eval -5.96] [%clk 0:00:41] } 44. h3 { [%eval -7.27] [%clk 0:05:24] } 44... h5 { [%eval -7.37] [%clk 0:00:33] } 45. Kd2 { [%eval -7.23] [%clk 0:05:33] } 45... h4 { [%eval -6.14] [%clk 0:00:34] } 46. Kc3?! { [%eval -8.87] } { Inaccuracy. Ke2 was best. } { [%clk 0:05:41] } 46... Bxg4 { [%eval -7.48] [%clk 0:00:33] } 47. Kxb2? { [%eval #-28] } { Checkmate is now unavoidable. hxg4 was best. } { [%clk 0:05:35] } 47... Bxh3 { [%eval #-28] [%clk 0:00:58] } 48. Kc3 { [%eval #-29] [%clk 0:05:54] } 48... Bg2 { [%eval -10.51] [%clk 0:01:21] } 0-1