Event: Round 8: Costa, Leonardo - Kozul, Zdenko
Date: 2025-04-04
White: Costa, Leonardo
WhiteTitle: IM
WhiteElo: 2510
Black: Kozul, Zdenko
BlackTitle: GM
BlackElo: 2507
Result: 1-0
ECO: B67
Opening: Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:30:58] } 1... c5 { [%eval 0.25] [%clk 1:30:52] } 2. Nf3 { [%eval 0.2] [%clk 1:31:25] } 2... d6 { [%eval 0.25] [%clk 1:30:41] } 3. d4 { [%eval 0.22] [%clk 1:31:51] } 3... cxd4 { [%eval 0.19] [%clk 1:31:06] } 4. Nxd4 { [%eval 0.18] [%clk 1:32:18] } 4... Nf6 { [%eval 0.25] [%clk 1:31:27] } 5. Nc3 { [%eval 0.32] [%clk 1:32:45] } 5... Nc6 { [%eval 0.3] [%clk 1:30:16] } 6. Bg5 { [%eval 0.25] [%clk 1:33:07] } 6... e6 { [%eval 0.39] [%clk 1:30:36] } 7. Qd2 { [%eval 0.39] [%clk 1:33:32] } 7... a6 { [%eval 0.45] [%clk 1:30:19] } 8. O-O-O { [%eval 0.41] [%clk 1:33:56] } 8... Bd7 { [%eval 0.46] [%clk 1:30:42] } 9. Kb1 { [%eval 0.5] [%clk 1:34:21] } 9... Nxd4 { [%eval 0.52] [%clk 1:23:29] } 10. Qxd4 { [%eval 0.41] [%clk 1:34:47] } 10... Be7 { [%eval 0.46] [%clk 1:23:52] } 11. f3 { [%eval 0.48] [%clk 1:35:14] } 11... O-O { [%eval 0.67] [%clk 1:19:10] } 12. h4 { [%eval 0.78] [%clk 1:25:11] } 12... h6?! { [%eval 1.55] } { Inaccuracy. b5 was best. } { [%clk 1:08:57] } 13. Be3 { [%eval 1.26] [%clk 1:19:39] } 13... h5 { [%eval 1.23] [%clk 1:09:18] } 14. Bg5?! { [%eval 0.56] } { Inaccuracy. g4 was best. } { [%clk 1:15:38] } 14... Qc7?! { [%eval 1.34] } { Inaccuracy. b5 was best. } { [%clk 0:56:50] } 15. g4 { [%eval 1.23] [%clk 1:09:57] } 15... hxg4 { [%eval 1.2] [%clk 0:51:23] } 16. h5 { [%eval 1.07] [%clk 1:10:23] } 16... e5 { [%eval 1.21] [%clk 0:50:26] } 17. Qf2 { [%eval 0.86] [%clk 1:06:30] } 17... Kh7? { [%eval 2.3] } { Mistake. Be6 was best. } { [%clk 0:42:12] } 18. f4 { [%eval 2.26] [%clk 0:44:34] } 18... Bc6? { [%eval 3.89] } { Mistake. Qd8 was best. } { [%clk 0:32:24] } 19. fxe5 { [%eval 3.98] [%clk 0:44:03] } 19... Nxe4 { [%eval 3.57] [%clk 0:32:13] } 20. Qf5+ { [%eval 3.19] [%clk 0:43:10] } 20... Kg8?! { [%eval 4.22] } { Inaccuracy. Kh8 was best. } { [%clk 0:28:58] } 21. Nxe4 { [%eval 4.18] [%clk 0:43:19] } 21... Bxe4 { [%eval 4.32] [%clk 0:26:31] } 22. Qxe4 { [%eval 4.28] [%clk 0:43:46] } 22... Bxg5 { [%eval 4.16] [%clk 0:26:55] } 23. Bd3?! { [%eval 3.02] } { Inaccuracy. Qxg4 was best. } { [%clk 0:39:27] } 23... f5 { [%eval 3.12] [%clk 0:26:26] } 24. exf6 { [%eval 3.04] [%clk 0:39:54] } 24... gxf6 { [%eval 3.07] [%clk 0:26:45] } 25. Qxg4 { [%eval 2.97] [%clk 0:25:58] } 25... Kh8 { [%eval 3.28] [%clk 0:22:59] } 26. h6 { [%eval 2.86] [%clk 0:26:10] } 26... Rae8 { [%eval 2.81] [%clk 0:19:17] } 27. a3 { [%eval 2.8] [%clk 0:25:32] } 27... Re5 { [%eval 2.63] [%clk 0:19:15] } 28. Bc4?! { [%eval 1.93] } { Inaccuracy. Rhf1 was best. } { [%clk 0:13:06] } 28... Qe7 { [%eval 1.95] [%clk 0:15:59] } 29. Bb3 { [%eval 1.97] [%clk 0:12:56] } 29... f5 { [%eval 1.96] [%clk 0:07:58] } 30. Qf3 { [%eval 1.97] [%clk 0:10:35] } 30... f4 { [%eval 2.12] [%clk 0:07:50] } 31. h7 { [%eval 1.97] [%clk 0:11:03] } 31... b5 { [%eval 2.01] [%clk 0:05:52] } 32. Rh3?! { [%eval 1.3] } { Inaccuracy. Rhg1 was best. } { [%clk 0:00:40] } 32... a5 { [%eval 1.25] [%clk 0:05:27] } 33. Qc6? { [%eval 0.11] } { Mistake. Ka2 was best. } { [%clk 0:00:47] } 33... Rc5?! { [%eval 0.97] } { Inaccuracy. Bf6 was best. } { [%clk 0:01:05] } 34. Qg2 { [%eval 0.85] [%clk 0:00:52] } 34... Qe5 { [%eval 1.18] [%clk 0:01:13] } 35. Bd5?! { [%eval 0.12] } { Inaccuracy. Rg1 was best. } { [%clk 0:00:56] } 35... b4? { [%eval 1.47] } { Mistake. Rfc8 was best. } { [%clk 0:01:28] } 36. a4 { [%eval 1.25] [%clk 0:00:46] } 36... Rcc8?? { [%eval 4.73] } { Blunder. Rc7 was best. } { [%clk 0:00:33] } 37. Rh5? { [%eval 2.38] } { Mistake. Rg1 was best. } { [%clk 0:01:06] } 37... Rf5 { [%eval 2.36] [%clk 0:00:44] } 38. Qg4 { [%eval 2.27] [%clk 0:00:41] } 38... Rcf8?? { [%eval 5.83] } { Blunder. Rc5 was best. } { [%clk 0:00:33] } 39. Rd3?? { [%eval 2.75] } { Blunder. Be6 was best. } { [%clk 0:00:45] } 39... f3?? { [%eval 6.16] } { Blunder. Qg7 was best. } { [%clk 0:00:37] } 40. Rxf3 { [%eval 6.01] [%clk 0:00:33] } 1-0