Event: Round 8: Alexander Kovchan - Rick Lahaye
Date: 2022-12-29
White: Alexander Kovchan
Black: Rick Lahaye
Result: 0-1
ECO: B56
Opening: Sicilian Defense: Kupreichik Variation
Variant: Standard

1. e4 { [%eval 0.36] [%clk 1:30:56] } 1... c5 { [%eval 0.32] [%clk 1:30:49] } 2. Nf3 { [%eval 0.0] [%clk 1:31:15] } 2... d6 { [%eval 0.0] [%clk 1:31:08] } 3. d4 { [%eval 0.25] [%clk 1:31:37] } 3... cxd4 { [%eval 0.13] [%clk 1:31:29] } 4. Nxd4 { [%eval 0.27] [%clk 1:31:57] } 4... Nf6 { [%eval 0.31] [%clk 1:31:44] } 5. Nc3 { [%eval 0.18] [%clk 1:32:19] } 5... Bd7 { [%eval 0.55] [%clk 1:31:57] } 6. f3 { [%eval 0.73] [%clk 1:32:12] } 6... e5 { [%eval 0.56] [%clk 1:29:18] } 7. Nb3 { [%eval 0.51] [%clk 1:32:33] } 7... Be7 { [%eval 0.69] [%clk 1:28:58] } 8. Be3 { [%eval 0.58] [%clk 1:32:53] } 8... O-O { [%eval 0.81] [%clk 1:27:51] } 9. Qd2 { [%eval 0.81] [%clk 1:33:14] } 9... a5 { [%eval 0.91] [%clk 1:27:41] } 10. a4 { [%eval 0.78] [%clk 1:33:35] } 10... Be6 { [%eval 0.93] [%clk 1:24:56] } 11. O-O-O { [%eval 0.9] [%clk 1:30:51] } 11... Nc6 { [%eval 0.77] [%clk 1:24:29] } 12. g4 { [%eval 0.98] [%clk 1:15:08] } 12... Nb4 { [%eval 1.08] [%clk 1:20:51] } 13. g5 { [%eval 1.0] [%clk 1:14:17] } 13... Nd7 { [%eval 1.03] [%clk 1:09:13] } 14. h4 { [%eval 0.63] [%clk 1:12:37] } 14... Rc8 { [%eval 0.67] [%clk 1:08:43] } 15. Bb5 { [%eval 0.75] [%clk 0:51:18] } 15... f5 { [%eval 1.11] [%clk 0:49:55] } 16. Bxd7? { [%eval -0.05] } { Mistake. Kb1 was best. } { [%clk 0:47:18] } 16... Bxd7 { [%eval -0.03] [%clk 0:49:29] } 17. Bc5 { [%eval 0.03] [%clk 0:44:37] } 17... fxe4 { [%eval 0.3] [%clk 0:45:53] } 18. Bxb4?? { [%eval -2.48] } { Blunder. fxe4 was best. } { [%clk 0:39:29] } 18... axb4 { [%eval -2.38] [%clk 0:46:01] } 19. Nxe4 { [%eval -2.54] [%clk 0:39:49] } 19... Bc6? { [%eval -0.85] } { Mistake. Qc7 was best. } { [%clk 0:35:50] } 20. Qd3? { [%eval -2.16] } { Mistake. Nxd6 was best. } { [%clk 0:20:29] } 20... d5 { [%eval -2.41] [%clk 0:33:54] } 21. Ned2?! { [%eval -3.48] } { Inaccuracy. Kb1 was best. } { [%clk 0:19:09] } 21... Be8 { [%eval -3.2] [%clk 0:30:37] } 22. Na1 { [%eval -3.01] [%clk 0:15:54] } 22... Rf4 { [%eval -2.6] [%clk 0:24:00] } 23. Rhe1 { [%eval -3.0] [%clk 0:14:59] } 23... Rd4 { [%eval -3.08] [%clk 0:23:21] } 24. Qb3 { [%eval -3.77] [%clk 0:12:21] } 24... Bxa4?! { [%eval -2.44] } { Inaccuracy. b5 was best. } { [%clk 0:20:15] } 25. Qxa4 { [%eval -2.66] [%clk 0:12:18] } 25... Ra8 { [%eval -2.66] [%clk 0:20:41] } 26. Qxa8 { [%eval -2.49] [%clk 0:10:18] } 26... Qxa8 { [%eval -2.61] [%clk 0:20:31] } 27. Nab3 { [%eval -2.5] [%clk 0:10:46] } 27... Rxh4 { [%eval -2.62] [%clk 0:13:45] } 28. Rxe5 { [%eval -2.6] [%clk 0:11:10] } 28... Qd8 { [%eval -2.71] [%clk 0:12:56] } 29. Rde1 { [%eval -2.61] [%clk 0:08:10] } 29... Bf8 { [%eval -2.72] [%clk 0:13:11] } 30. Nc5? { [%eval -4.7] } { Mistake. Kd1 was best. } { [%clk 0:07:00] } 30... Bxc5 { [%eval -4.72] [%clk 0:12:00] } 31. Re8+ { [%eval -5.47] [%clk 0:07:24] } 31... Qxe8 { [%eval -4.85] [%clk 0:12:28] } 32. Rxe8+ { [%eval -5.27] [%clk 0:07:49] } 32... Kf7 { [%eval -5.03] [%clk 0:12:53] } 33. Re1 { [%eval -4.4] [%clk 0:08:11] } 33... Bf2 { [%eval -5.05] [%clk 0:13:15] } 34. Rd1 { [%eval -5.23] [%clk 0:03:19] } 34... Be3 { [%eval -4.93] [%clk 0:13:39] } 35. c3 { [%eval -6.16] [%clk 0:03:27] } 35... bxc3 { [%eval -5.9] [%clk 0:13:55] } 36. bxc3 { [%eval -6.07] [%clk 0:03:55] } 36... Rh2 { [%eval -6.22] [%clk 0:14:08] } 37. f4 { [%eval -6.1] [%clk 0:04:23] } 37... Kg6 { [%eval -5.98] [%clk 0:14:12] } 0-1