Event: Hong Kong International Open Chess Championship 2023
Site: St. Benedict School, Choi Hung, Kowloon, Hong Kong
Date: 2023-12-26
White: Xu, Yichen(Bj)
Black: Londono, Diego
BlackElo: 1638
Result: 1/2-1/2
ECO: A40
Opening: Horwitz Defense
Variant: Standard

1. d4 { [%eval 0.13] [%clk 1:30:50] } 1... e6 { [%eval 0.33] [%clk 1:30:07] } 2. Bf4 { [%eval 0.0] [%clk 1:31:18] } 2... d5 { [%eval 0.03] [%clk 1:29:51] } 3. e3 { [%eval 0.09] [%clk 1:30:02] } 3... c5 { [%eval 0.28] [%clk 1:30:05] } 4. c3 { [%eval 0.14] [%clk 1:30:16] } 4... Nf6 { [%eval 0.16] [%clk 1:25:24] } 5. Bd3 { [%eval -0.05] [%clk 1:30:44] } 5... Qb6 { [%eval -0.05] [%clk 1:20:59] } 6. Qb3?! { [%eval -0.63] } { Inaccuracy. Qc2 was best. } { [%clk 1:29:44] } 6... c4 { [%eval -0.56] } 7. Qxb6 { [%eval -0.64] [%clk 1:30:12] } 7... axb6 { [%eval -0.13] [%clk 1:13:58] } 8. Bc2 { [%eval -0.5] [%clk 1:30:27] } 8... Nc6 { [%eval -0.53] [%clk 1:12:46] } 9. Nd2 { [%eval -0.6] [%clk 1:30:18] } 9... Be7?! { [%eval 0.42] } { Inaccuracy. b5 was best. } { [%clk 1:11:52] } 10. Ngf3? { [%eval -0.69] } { Mistake. a3 was best. } { [%clk 1:29:32] } 10... b5 { [%eval -0.76] [%clk 1:11:23] } 11. O-O { [%eval -0.68] [%clk 1:27:46] } 11... b4 { [%eval -0.75] [%clk 1:07:55] } 12. e4 { [%eval -0.54] [%clk 1:28:12] } 12... b5 { [%eval -0.47] [%clk 1:00:04] } 13. Ne5 { [%eval -0.35] [%clk 1:26:03] } 13... Bb7 { [%eval -0.4] [%clk 0:57:04] } 14. Nxc6?! { [%eval -1.19] } { Inaccuracy. a4 was best. } { [%clk 1:25:47] } 14... Bxc6 { [%eval -1.24] [%clk 0:57:33] } 15. f3?! { [%eval -1.97] } { Inaccuracy. cxb4 was best. } { [%clk 1:24:18] } 15... O-O?! { [%eval -1.19] } { Inaccuracy. bxc3 was best. } 16. Be5?! { [%eval -2.13] } { Inaccuracy. cxb4 was best. } { [%clk 1:24:47] } 16... Nd7 { [%eval -2.06] [%clk 0:52:35] } 17. exd5 { [%eval -1.97] [%clk 1:24:44] } 17... Bxd5 { [%eval -1.84] [%clk 0:51:06] } 18. Bg3 { [%eval -1.66] [%clk 1:24:06] } 18... bxc3 { [%eval -1.8] [%clk 0:50:09] } 19. bxc3 { [%eval -1.78] [%clk 1:24:35] } 19... Ra5 { [%eval -1.72] [%clk 0:46:57] } 20. a4 { [%eval -1.94] [%clk 1:25:03] } 20... Rfa8 { [%eval -1.82] [%clk 0:42:27] } 21. Be4 { [%eval -2.32] [%clk 1:24:58] } 21... Rxa4 { [%eval -2.41] [%clk 0:37:52] } 22. Rxa4 { [%eval -2.42] [%clk 1:25:26] } 22... Rxa4?! { [%eval -1.53] } { Inaccuracy. bxa4 was best. } { [%clk 0:38:10] } 23. Bxd5 { [%eval -1.4] [%clk 1:23:34] } 23... exd5 { [%eval -1.45] } 24. Re1 { [%eval -1.44] } 24... Kf8 { [%eval -1.39] [%clk 0:39:07] } 25. Nf1 { [%eval -1.44] [%clk 1:24:31] } 25... b4 { [%eval -1.41] [%clk 0:27:49] } 26. Ne3?? { [%eval -3.83] } { Blunder. cxb4 was best. } { [%clk 1:24:10] } 26... Nf6?? { [%eval -0.68] } { Blunder. b3 was best. } { [%clk 0:19:42] } 27. Nf5?? { [%eval -2.72] } { Blunder. cxb4 was best. } { [%clk 1:24:22] } 27... b3 { [%eval -2.64] [%clk 0:08:12] } 28. Rb1?! { [%eval -4.05] } { Inaccuracy. Rxe7 was best. } { [%clk 1:17:46] } 28... Ra2 { [%eval -4.35] [%clk 0:06:14] } 29. Nxe7 { [%eval -5.41] [%clk 1:18:16] } 29... Kxe7 { [%eval -5.55] [%clk 0:03:21] } 30. Bf4 { [%eval -5.45] [%clk 1:18:45] } 30... Rc2 { [%eval -5.51] [%clk 0:02:05] } 31. Rc1 { [%eval -5.69] [%clk 1:19:14] } 31... Ra2 { [%eval -5.44] [%clk 0:00:00] } 32. Rb1 { [%eval -5.48] [%clk 1:19:43] } 32... b2? { [%eval -2.93] } { Mistake. Kd7 was best. } { [%clk 0:00:00] } 33. Kf2 { [%eval -2.78] [%clk 1:19:59] } 33... Ra3? { [%eval -1.23] } { Mistake. Nd7 was best. } { [%clk 0:00:00] } 34. Bd2?? { [%eval -3.27] } { Blunder. Rxb2 was best. } { [%clk 1:19:37] } 34... Rb3 { [%eval -3.06] [%clk 0:00:00] } 35. Ke1 { [%eval -2.99] [%clk 1:20:07] } 1/2-1/2