Event: Round 5: George P Berg - Derek Zhang
Date: 2025-02-23
White: George P Berg
Black: Derek Zhang
Result: 1-0
ECO: B91
Opening: Sicilian Defense: Najdorf Variation, Zagreb Variation
Variant: Standard
TimeControl: 90+30

1. e4 { [%eval 0.18] [%clk 1:30:58] } 1... c5 { [%eval 0.25] [%clk 1:30:57] } 2. Nf3 { [%eval 0.2] [%clk 1:31:19] } 2... d6 { [%eval 0.22] [%clk 1:31:23] } 3. d4 { [%eval 0.22] [%clk 1:31:43] } 3... cxd4 { [%eval 0.19] [%clk 1:31:50] } 4. Nxd4 { [%eval 0.18] [%clk 1:32:07] } 4... Nf6 { [%eval 0.25] [%clk 1:32:16] } 5. Nc3 { [%eval 0.32] [%clk 1:32:28] } 5... a6 { [%eval 0.32] [%clk 1:32:41] } 6. g3 { [%eval 0.08] [%clk 1:32:52] } 6... e5 { [%eval 0.04] [%clk 1:32:29] } 7. Nb3 { [%eval 0.08] [%clk 1:33:16] } 7... Be7 { [%eval 0.11] [%clk 1:32:10] } 8. Bg2 { [%eval 0.12] [%clk 1:33:41] } 8... Be6 { [%eval 0.23] [%clk 1:32:25] } 9. O-O { [%eval 0.34] [%clk 1:33:21] } 9... O-O { [%eval 0.23] [%clk 1:32:44] } 10. a4 { [%eval 0.24] [%clk 1:33:47] } 10... Nc6 { [%eval 0.48] [%clk 1:31:14] } 11. Nd5 { [%eval 0.47] [%clk 1:26:31] } 11... Bxd5 { [%eval 0.89] [%clk 1:30:16] } 12. exd5 { [%eval 0.87] [%clk 1:26:54] } 12... Na5 { [%eval 0.83] [%clk 1:29:02] } 13. Nxa5 { [%eval 0.57] [%clk 1:25:01] } 13... Qxa5 { [%eval 0.53] [%clk 1:29:26] } 14. Bd2 { [%eval 0.48] [%clk 1:23:49] } 14... Qc7 { [%eval 0.49] [%clk 1:26:23] } 15. a5 { [%eval 0.52] [%clk 1:23:49] } 15... Rac8 { [%eval 0.59] [%clk 1:25:09] } 16. Bh3 { [%eval 0.52] [%clk 1:16:57] } 16... Nd7 { [%eval 0.71] [%clk 1:23:32] } 17. c4 { [%eval 0.67] [%clk 1:11:45] } 17... f5 { [%eval 0.74] [%clk 1:20:43] } 18. Rc1 { [%eval 0.66] [%clk 1:11:40] } 18... e4 { [%eval 0.74] [%clk 1:17:48] } 19. b4?! { [%eval -0.12] } { Inaccuracy. f3 was best. } { [%clk 1:11:40] } 19... Ne5 { [%eval -0.08] [%clk 1:14:36] } 20. Be3 { [%eval -0.13] [%clk 1:09:53] } 20... Nd3?! { [%eval 0.51] } { Inaccuracy. Qd8 was best. } { [%clk 1:12:59] } 21. Qd2?! { [%eval -0.49] } { Inaccuracy. Rc3 was best. } { [%clk 1:06:54] } 21... Nxc1 { [%eval -0.57] [%clk 1:11:39] } 22. Rxc1 { [%eval -0.49] [%clk 1:07:17] } 22... Qd7?! { [%eval 0.52] } { Inaccuracy. h6 was best. } { [%clk 1:11:12] } 23. c5 { [%eval 0.65] [%clk 1:04:51] } 23... Kh8 { [%eval 0.78] [%clk 1:08:07] } 24. Bf1 { [%eval 0.72] [%clk 1:03:46] } 24... Rfd8?? { [%eval 3.02] } { Blunder. Bf6 was best. } { [%clk 1:07:30] } 25. c6 { [%eval 3.07] [%clk 1:03:35] } 25... bxc6 { [%eval 3.08] [%clk 1:05:15] } 26. Bxa6 { [%eval 3.03] [%clk 1:03:58] } 26... c5 { [%eval 3.14] [%clk 1:02:02] } 27. Bxc8 { [%eval 3.36] [%clk 1:02:53] } 27... Rxc8 { [%eval 3.31] [%clk 1:02:23] } 28. Rd1? { [%eval 1.65] } { Mistake. a6 was best. } { [%clk 0:56:31] } 28... Bf6? { [%eval 2.98] } { Mistake. Ra8 was best. } { [%clk 1:00:30] } 29. bxc5 { [%eval 2.82] [%clk 0:54:45] } 29... dxc5 { [%eval 3.02] [%clk 1:00:44] } 30. d6 { [%eval 2.81] [%clk 0:54:56] } 30... c4?! { [%eval 3.79] } { Inaccuracy. Rc6 was best. } { [%clk 0:58:34] } 31. a6 { [%eval 3.71] [%clk 0:45:10] } 31... c3 { [%eval 4.09] [%clk 0:56:11] } 32. Qc2? { [%eval 2.47] } { Mistake. Qd5 was best. } { [%clk 0:45:24] } 32... Be5?! { [%eval 3.78] } { Inaccuracy. h6 was best. } { [%clk 0:54:41] } 33. a7 { [%eval 3.15] [%clk 0:45:17] } 33... f4?! { [%eval 4.84] } { Inaccuracy. h6 was best. } { [%clk 0:51:30] } 34. Qxe4 { [%eval 4.85] [%clk 0:42:39] } 34... c2 { [%eval 5.78] [%clk 0:50:16] } 35. Rc1 { [%eval 5.48] [%clk 0:31:50] } 35... Qd8 { [%eval 6.64] [%clk 0:45:48] } 36. Bc5 { [%eval 6.52] [%clk 0:27:21] } 36... Bxd6 { [%eval 6.86] [%clk 0:43:11] } 37. Bxd6 { [%eval 6.86] [%clk 0:27:23] } 37... fxg3 { [%eval 7.5] [%clk 0:43:33] } 38. hxg3 { [%eval 7.79] [%clk 0:24:50] } 38... Ra8 { [%eval 7.58] [%clk 0:43:28] } 39. Qb7 { [%eval 7.21] [%clk 0:23:04] } 1-0