Event: Round 4: Chatalbashev, Boris - Zheng, Harry Z
Date: 2025-02-20
White: Chatalbashev, Boris
WhiteTitle: GM
WhiteElo: 2489
Black: Zheng, Harry Z
BlackElo: 2198
Result: 1-0
ECO: E18
Opening: Queen's Indian Defense: Classical Variation, Traditional Variation, Nimzowitsch Line
Variant: Standard

1. Nf3 { [%eval 0.14] [%clk 1:30:56] } 1... Nf6 { [%eval 0.18] [%clk 1:30:42] } 2. c4 { [%eval 0.12] [%clk 1:31:20] } 2... b6 { [%eval 0.28] [%clk 1:30:29] } 3. g3 { [%eval 0.32] [%clk 1:30:31] } 3... Bb7 { [%eval 0.32] [%clk 1:29:15] } 4. Bg2 { [%eval 0.27] [%clk 1:30:56] } 4... e6 { [%eval 0.28] [%clk 1:29:25] } 5. O-O { [%eval 0.23] [%clk 1:31:08] } 5... Be7 { [%eval 0.23] [%clk 1:26:43] } 6. Nc3 { [%eval 0.25] [%clk 1:31:23] } 6... O-O { [%eval 0.23] [%clk 1:23:53] } 7. d4 { [%eval 0.23] [%clk 1:31:43] } 7... d5 { [%eval 0.36] [%clk 1:23:20] } 8. cxd5 { [%eval 0.25] [%clk 1:32:06] } 8... Nxd5 { [%eval 0.3] [%clk 1:21:49] } 9. Re1 { [%eval 0.21] [%clk 1:28:38] } 9... c5 { [%eval 0.25] [%clk 1:17:13] } 10. e4 { [%eval 0.29] [%clk 1:28:49] } 10... cxd4 { [%eval 0.29] [%clk 1:12:37] } 11. Nxd5 { [%eval 0.31] [%clk 1:25:01] } 11... exd5 { [%eval 0.41] [%clk 1:12:36] } 12. Nxd4 { [%eval 0.23] [%clk 1:16:14] } 12... dxe4 { [%eval 0.4] [%clk 1:04:38] } 13. Nf5 { [%eval 0.32] [%clk 1:16:26] } 13... Nd7? { [%eval 2.0] } { Mistake. Bc5 was best. } { [%clk 0:51:09] } 14. Qg4 { [%eval 1.75] [%clk 1:02:22] } 14... Bf6?! { [%eval 2.87] } { Inaccuracy. g6 was best. } { [%clk 0:49:05] } 15. Rd1 { [%eval 2.82] [%clk 1:01:18] } 15... Kh8 { [%eval 2.84] [%clk 0:41:00] } 16. Bf4 { [%eval 2.91] [%clk 0:58:59] } 16... b5?! { [%eval 3.96] } { Inaccuracy. a5 was best. } { [%clk 0:29:29] } 17. Nd6 { [%eval 3.99] [%clk 0:51:30] } 17... Bc6 { [%eval 4.82] [%clk 0:22:14] } 18. Rac1 { [%eval 4.72] [%clk 0:51:13] } 18... Qb6 { [%eval 5.76] [%clk 0:17:28] } 19. Rxc6 { [%eval 5.75] [%clk 0:49:57] } 19... Qxc6 { [%eval 5.8] [%clk 0:17:07] } 20. Bxe4 { [%eval 5.7] [%clk 0:50:18] } 20... Qc5 { [%eval 5.79] [%clk 0:16:45] } 21. b4 { [%eval 5.62] [%clk 0:46:06] } 21... Qxb4 { [%eval 5.94] [%clk 0:09:30] } 22. Qxd7 { [%eval 5.06] [%clk 0:45:35] } 22... Rad8 { [%eval 5.92] [%clk 0:04:19] } 23. Qf5 { [%eval 5.93] [%clk 0:45:29] } 1-0