Event: Chinese National Youth Chess Championship 2024
Date: 2024-02-21
White: Qingfeng Cao
WhiteElo: 2016
Black: Yibai Ren
BlackElo: 1584
Result: 1-0
ECO: D85
Opening: Grünfeld Defense: Exchange Variation
Variant: Standard
TimeControl: 90+30

1. d4 { [%eval 0.15] [%clk 1:30:57] } 1... Nf6 { [%eval 0.16] [%clk 1:30:44] } 2. c4 { [%eval 0.16] [%clk 1:31:20] } 2... g6 { [%eval 0.37] [%clk 1:30:21] } 3. Nc3 { [%eval 0.31] [%clk 1:31:38] } 3... d5 { [%eval 0.2] [%clk 1:29:55] } 4. cxd5 { [%eval 0.4] [%clk 1:31:58] } 4... Nxd5 { [%eval 0.33] [%clk 1:30:21] } 5. Bd2 { [%eval 0.21] [%clk 1:32:19] } 5... Bg7 { [%eval 0.09] [%clk 1:30:29] } 6. e4 { [%eval 0.28] [%clk 1:32:42] } 6... Nxc3 { [%eval 0.26] [%clk 1:30:28] } 7. Bxc3 { [%eval 0.33] [%clk 1:33:06] } 7... O-O { [%eval 0.19] [%clk 1:30:01] } 8. Qd2 { [%eval 0.32] [%clk 1:33:18] } 8... e6 { [%eval 0.63] [%clk 1:23:13] } 9. O-O-O { [%eval 0.46] [%clk 1:21:07] } 9... b6 { [%eval 0.75] [%clk 1:11:40] } 10. Nf3?! { [%eval 0.16] } { Inaccuracy. h4 was best. } { [%clk 1:18:51] } 10... Bb7 { [%eval 0.12] [%clk 1:10:18] } 11. Qe3 { [%eval 0.02] [%clk 1:06:21] } 11... Qe7 { [%eval 0.34] [%clk 0:57:34] } 12. h4 { [%eval 0.46] [%clk 0:56:13] } 12... h5 { [%eval 0.49] [%clk 0:54:14] } 13. Bc4 { [%eval 0.11] [%clk 0:50:12] } 13... Nd7 { [%eval 0.03] [%clk 0:49:53] } 14. Rhe1 { [%eval 0.03] [%clk 0:48:37] } 14... Nf6 { [%eval 0.32] [%clk 0:39:57] } 15. Qf4 { [%eval 0.3] [%clk 0:42:23] } 15... Rfd8?! { [%eval 0.97] } { Inaccuracy. Ng4 was best. } { [%clk 0:35:37] } 16. Kb1 { [%eval 1.1] [%clk 0:39:45] } 16... c6 { [%eval 0.82] [%clk 0:29:36] } 17. a3 { [%eval 0.62] [%clk 0:32:28] } 17... a5 { [%eval 0.66] [%clk 0:28:24] } 18. a4? { [%eval -0.97] } { Mistake. e5 was best. } { [%clk 0:32:03] } 18... Rab8?? { [%eval 1.43] } { Blunder. b5 was best. } { [%clk 0:26:33] } 19. Bb3? { [%eval -0.09] } { Mistake. d5 was best. } { [%clk 0:29:07] } 19... Rbc8?! { [%eval 0.68] } { Inaccuracy. b5 was best. } { [%clk 0:24:42] } 20. Bc4?? { [%eval -1.51] } { Blunder. Ng5 was best. } { [%clk 0:26:54] } 20... Rb8?? { [%eval 1.33] } { Blunder. b5 was best. } { [%clk 0:25:08] } 21. d5 { [%eval 1.44] [%clk 0:23:31] } 21... Nxe4?? { [%eval 3.97] } { Blunder. cxd5 was best. } { [%clk 0:19:27] } 22. Bxg7 { [%eval 4.07] [%clk 0:22:13] } 22... Kxg7 { [%eval 4.18] [%clk 0:19:18] } 23. Qxe4 { [%eval 4.01] [%clk 0:22:05] } 23... cxd5 { [%eval 4.14] [%clk 0:17:56] } 24. Bxd5 { [%eval 3.97] [%clk 0:21:52] } 24... Rxd5 { [%eval 4.61] [%clk 0:17:36] } 25. Rxd5 { [%eval 4.5] [%clk 0:22:09] } 25... Qf6 { [%eval 4.79] [%clk 0:17:42] } 26. Qe5 { [%eval 4.76] [%clk 0:21:54] } 26... Bxd5 { [%eval 4.73] [%clk 0:16:57] } 27. Qxb8 { [%eval 4.39] [%clk 0:22:15] } 27... Qf5+ { [%eval 4.82] [%clk 0:17:06] } 28. Kc1 { [%eval 4.77] [%clk 0:20:09] } 28... Qd3 { [%eval 5.19] [%clk 0:15:10] } 29. Qe5+ { [%eval 5.22] [%clk 0:20:23] } 29... Kg8 { [%eval 5.11] [%clk 0:15:36] } 30. Qc3 { [%eval 5.0] [%clk 0:20:44] } 30... Qf5 { [%eval 5.0] [%clk 0:15:35] } 31. b3 { [%eval 4.83] [%clk 0:19:31] } 31... Qf4+ { [%eval 4.99] [%clk 0:15:40] } 32. Kb2 { [%eval 4.55] [%clk 0:19:51] } 32... Qf5 { [%eval 5.39] [%clk 0:15:22] } 33. Qd4 { [%eval 5.4] [%clk 0:20:09] } 33... Kh7 { [%eval 5.85] [%clk 0:14:30] } 34. Re5 { [%eval 5.51] [%clk 0:20:25] } 1-0