Event: Las Vegas National Open 2023
Date: 2023-06-16
White: Derek Wu
WhiteTitle: FM
Black: Jianchao Zhou
BlackTitle: GM
Result: 1-0
ECO: B67
Opening: Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation
Variant: Standard
TimeControl: G/90 +30 sec inc

1. e4 { [%eval 0.36] [%clk 1:30:24] } 1... c5 { [%eval 0.32] [%clk 1:21:25] } 2. Nf3 { [%eval 0.0] [%clk 1:30:44] } 2... d6 { [%eval 0.0] [%clk 1:20:53] } 3. d4 { [%eval 0.25] [%clk 1:31:06] } 3... cxd4 { [%eval 0.13] [%clk 1:21:22] } 4. Nxd4 { [%eval 0.27] [%clk 1:31:24] } 4... Nf6 { [%eval 0.3] [%clk 1:21:50] } 5. Nc3 { [%eval 0.21] [%clk 1:31:32] } 5... Nc6 { [%eval 0.47] [%clk 1:20:04] } 6. Bg5 { [%eval 0.0] [%clk 1:31:40] } 6... e6 { [%eval 0.23] [%clk 1:20:33] } 7. Qd2 { [%eval 0.09] [%clk 1:31:51] } 7... a6 { [%eval 0.29] [%clk 1:21:01] } 8. O-O-O { [%eval 0.47] [%clk 1:31:48] } 8... Bd7 { [%eval 0.57] [%clk 1:21:30] } 9. f4 { [%eval 0.42] [%clk 1:31:28] } 9... b5 { [%eval 0.49] [%clk 1:21:47] } 10. Bxf6 { [%eval 0.46] [%clk 1:31:11] } 10... gxf6 { [%eval 0.53] [%clk 1:22:04] } 11. Kb1 { [%eval 0.69] [%clk 1:30:16] } 11... Qb6 { [%eval 0.64] [%clk 1:20:47] } 12. Nxc6 { [%eval 0.63] [%clk 1:27:41] } 12... Bxc6 { [%eval 0.42] [%clk 1:21:09] } 13. Qe1 { [%eval 0.53] [%clk 1:23:43] } 13... Ra7 { [%eval 0.68] [%clk 1:21:21] } 14. Bd3 { [%eval 0.41] [%clk 1:19:28] } 14... b4 { [%eval 0.63] [%clk 1:20:27] } 15. Ne2 { [%eval 0.49] [%clk 1:19:26] } 15... h5 { [%eval 0.97] [%clk 1:16:22] } 16. Qh4 { [%eval 1.06] [%clk 1:15:18] } 16... Be7 { [%eval 1.31] [%clk 1:07:06] } 17. f5 { [%eval 1.3] [%clk 1:15:04] } 17... e5 { [%eval 1.42] [%clk 1:01:41] } 18. Ng3 { [%eval 1.03] [%clk 1:11:03] } 18... Kf8?! { [%eval 1.64] } { Inaccuracy. Qf2 was best. } { [%clk 0:56:47] } 19. Nxh5 { [%eval 1.51] [%clk 1:08:41] } 19... d5 { [%eval 1.63] [%clk 0:55:17] } 20. Qg4 { [%eval 1.61] [%clk 1:01:43] } 20... Rg8 { [%eval 1.79] [%clk 0:55:16] } 21. Qf3 { [%eval 1.71] [%clk 1:02:07] } 21... d4 { [%eval 2.08] [%clk 0:52:44] } 22. Ng3? { [%eval 0.45] } { Mistake. g4 was best. } { [%clk 0:59:42] } 22... a5 { [%eval 0.37] [%clk 0:50:24] } 23. Nf1 { [%eval 0.17] [%clk 0:47:23] } 23... a4 { [%eval 0.5] [%clk 0:48:22] } 24. Nd2 { [%eval 0.37] [%clk 0:46:54] } 24... b3 { [%eval 0.49] [%clk 0:37:23] } 25. cxb3 { [%eval 0.37] [%clk 0:46:20] } 25... a3? { [%eval 1.7] } { Mistake. axb3 was best. } { [%clk 0:33:56] } 26. Nc4 { [%eval 1.8] [%clk 0:45:37] } 26... Qb7 { [%eval 1.76] [%clk 0:34:07] } 27. Nxa3 { [%eval 1.65] [%clk 0:41:02] } 27... Bxa3 { [%eval 1.73] [%clk 0:34:19] } 28. bxa3 { [%eval 1.69] [%clk 0:41:28] } 28... Rxa3 { [%eval 1.87] [%clk 0:34:36] } 29. Rd2 { [%eval 1.66] [%clk 0:39:54] } 29... Ke7?! { [%eval 2.35] } { Inaccuracy. Kg7 was best. } { [%clk 0:33:20] } 30. Rc1 { [%eval 2.33] [%clk 0:37:52] } 30... Rb8 { [%eval 2.25] [%clk 0:30:20] } 31. Qe2 { [%eval 2.16] [%clk 0:34:21] } 31... Kd6?! { [%eval 3.08] } { Inaccuracy. Ba4 was best. } { [%clk 0:21:08] } 32. Rdc2 { [%eval 2.8] [%clk 0:31:46] } 32... Ba4 { [%eval 2.83] [%clk 0:18:39] } 33. Bc4 { [%eval 2.44] [%clk 0:28:08] } 33... Bc6 { [%eval 2.7] [%clk 0:18:05] } 34. Bd3 { [%eval 2.9] [%clk 0:26:14] } 34... Ba4 { [%eval 3.12] [%clk 0:18:26] } 35. Rb2?! { [%eval 2.17] } { Inaccuracy. Ba6 was best. } { [%clk 0:25:28] } 35... Bxb3 { [%eval 2.37] [%clk 0:09:00] } 36. axb3 { [%eval 2.54] [%clk 0:25:42] } 36... Rxb3 { [%eval 2.4] [%clk 0:09:43] } 37. Rxb3?? { [%eval #-5] } { Checkmate is now unavoidable. Rc2 was best. } { [%clk 0:15:41] } 37... Qa8?? { [%eval 32.86] } { Lost forced checkmate sequence. Qxb3+ was best. } { [%clk 0:07:11] } 38. g4?? { [%eval 0.0] } { Blunder. Qb2 was best. } { [%clk 0:11:04] } 38... Qc6?? { [%eval #5] } { Checkmate is now unavoidable. Rxb3+ was best. } { [%clk 0:05:09] } 39. Qf3?? { [%eval #-2] } { Lost forced checkmate sequence. Rxc6+ was best. } { [%clk 0:00:34] } 39... Ke7?? { [%eval #8] } { Lost forced checkmate sequence. Rxb3+ was best. } { [%clk 0:01:12] } 1-0