Event: \Boyi Cup\China Youth Chess International Open Tournament 2025(Group B)
Site: Daqing, China
Date: 2025-07-31
White: Sun, Xiheng
WhiteElo: 1506
Black: Zhai, Pinran
BlackElo: 1756
Result: 1-0
ECO: A35
Opening: English Opening: Symmetrical Variation, Four Knights Variation
Variant: Standard
TimeControl: 60+30

1. c4 { [%eval 0.12] [%clk 1:00:57] } 1... c5 { [%eval 0.19] [%clk 1:00:49] } 2. Nf3 { [%eval 0.26] [%clk 1:00:14] } 2... Nf6 { [%eval 0.26] [%clk 1:01:06] } 3. Nc3 { [%eval 0.17] [%clk 1:00:39] } 3... Nc6 { [%eval 0.18] [%clk 1:01:24] } 4. d4 { [%eval 0.04] [%clk 1:01:04] } 4... cxd4 { [%eval 0.13] [%clk 1:01:32] } 5. Nxd4 { [%eval 0.11] [%clk 1:01:28] } 5... d6 { [%eval 0.37] [%clk 1:01:35] } 6. e4 { [%eval 0.45] [%clk 1:01:46] } 6... Bd7 { [%eval 0.42] [%clk 1:01:17] } 7. Be2 { [%eval 0.46] [%clk 1:02:05] } 7... g6 { [%eval 0.47] [%clk 1:00:34] } 8. Be3 { [%eval 0.73] [%clk 1:02:24] } 8... Bg7 { [%eval 0.73] [%clk 1:00:59] } 9. f3 { [%eval 0.64] [%clk 1:02:42] } 9... a6 { [%eval 0.57] [%clk 1:01:02] } 10. Qd2 { [%eval 0.61] [%clk 1:03:01] } 10... Rc8 { [%eval 0.69] [%clk 0:59:04] } 11. b3 { [%eval 0.64] [%clk 1:03:08] } 11... O-O { [%eval 0.66] [%clk 0:59:00] } 12. g4 { [%eval 0.16] [%clk 1:02:33] } 12... Nxd4 { [%eval 0.25] [%clk 0:58:02] } 13. Bxd4 { [%eval 0.26] [%clk 1:02:22] } 13... Bc6?! { [%eval 0.83] } { Inaccuracy. b5 was best. } { [%clk 0:57:25] } 14. h4?! { [%eval 0.21] } { Inaccuracy. O-O-O was best. } { [%clk 1:00:23] } 14... Qa5?! { [%eval 1.17] } { Inaccuracy. h5 was best. } { [%clk 0:47:52] } 15. h5?! { [%eval 0.6] } { Inaccuracy. O-O-O was best. } { [%clk 0:53:33] } 15... Rfe8?! { [%eval 1.72] } { Inaccuracy. Nd7 was best. } { [%clk 0:46:46] } 16. Rc1?! { [%eval 0.9] } { Inaccuracy. O-O-O was best. } { [%clk 0:53:01] } 16... Bd7 { [%eval 1.46] [%clk 0:43:13] } 17. Be3 { [%eval 1.05] [%clk 0:47:37] } 17... Red8?! { [%eval 1.68] } { Inaccuracy. b5 was best. } { [%clk 0:35:43] } 18. hxg6 { [%eval 1.41] [%clk 0:45:46] } 18... hxg6?! { [%eval 2.56] } { Inaccuracy. fxg6 was best. } { [%clk 0:35:59] } 19. Bh6 { [%eval 2.59] [%clk 0:45:33] } 19... Bh8 { [%eval 2.54] [%clk 0:35:58] } 20. Bg5? { [%eval 1.27] } { Mistake. Kf1 was best. } { [%clk 0:39:57] } 20... Bg7?! { [%eval 2.11] } { Inaccuracy. Re8 was best. } { [%clk 0:35:37] } 21. Bd3?! { [%eval 1.35] } { Inaccuracy. Bh6 was best. } { [%clk 0:31:48] } 21... Bc6?! { [%eval 2.36] } { Inaccuracy. Kf8 was best. } { [%clk 0:34:55] } 22. Bh6 { [%eval 2.0] [%clk 0:24:01] } 22... Bh8?! { [%eval 2.69] } { Inaccuracy. Nd7 was best. } { [%clk 0:35:07] } 23. Kf1 { [%eval 2.68] [%clk 0:24:12] } 23... Re8?! { [%eval 3.47] } { Inaccuracy. Qe5 was best. } { [%clk 0:33:40] } 24. Qh2 { [%eval 3.46] [%clk 0:23:26] } 24... Red8? { [%eval 5.47] } { Mistake. e5 was best. } { [%clk 0:30:56] } 25. Bd2? { [%eval 2.91] } { Mistake. Nd5 was best. } { [%clk 0:23:29] } 1-0