Event: 22nd Bangkok Chess Club Open 2025
Site: Royal Orchid Sheraton Riverside Hotel Bangkok, Thailand
White: Dang Hoang Son
WhiteTitle: IM
WhiteElo: 2413
Black: Biriya, Mohammadamin
BlackElo: 2221
Result: 0-1
ECO: A00
Opening: Hungarian Opening: Indian Defense
Variant: Standard
TimeControl: 90 min / 40 moves + 30 min / rest + 30 sec from move 1

1. g3 { [%eval 0.0] [%clk 1:30:57] } 1... Nf6 { [%eval 0.18] [%clk 1:25:25] } 2. Bg2 { [%eval 0.07] [%clk 1:31:20] } 2... d5 { [%eval 0.18] [%clk 1:25:52] } 3. d3 { [%eval -0.13] [%clk 1:31:29] } 3... e6 { [%eval 0.05] [%clk 1:25:10] } 4. f4 { [%eval -0.2] [%clk 1:31:26] } 4... c5 { [%eval -0.11] [%clk 1:22:19] } 5. Nf3 { [%eval -0.21] [%clk 1:29:27] } 5... Nc6 { [%eval -0.2] [%clk 1:21:28] } 6. c3 { [%eval -0.35] [%clk 1:28:52] } 6... Be7 { [%eval -0.33] [%clk 1:19:38] } 7. Qc2 { [%eval -0.61] [%clk 1:28:21] } 7... Qc7 { [%eval -0.36] [%clk 1:19:01] } 8. e4 { [%eval -0.31] [%clk 1:28:02] } 8... dxe4 { [%eval -0.28] [%clk 1:18:53] } 9. dxe4 { [%eval -0.33] [%clk 1:28:26] } 9... e5?! { [%eval 0.6] } { Inaccuracy. b5 was best. } { [%clk 1:19:21] } 10. Na3 { [%eval 0.65] [%clk 1:26:43] } 10... Be6 { [%eval 0.81] [%clk 1:07:27] } 11. f5 { [%eval 0.81] [%clk 1:25:32] } 11... Bd7 { [%eval 0.79] [%clk 1:05:09] } 12. Bg5 { [%eval 0.73] [%clk 1:25:33] } 12... a6 { [%eval 0.88] [%clk 1:04:13] } 13. Nc4 { [%eval 0.88] [%clk 1:25:26] } 13... h6 { [%eval 0.95] [%clk 0:57:06] } 14. Bxf6 { [%eval 0.86] [%clk 1:24:35] } 14... Bxf6 { [%eval 0.82] [%clk 0:57:32] } 15. Ne3 { [%eval 0.85] [%clk 1:24:58] } 15... Ne7 { [%eval 0.67] [%clk 0:57:51] } 16. O-O-O { [%eval 0.5] [%clk 1:24:02] } 16... Bc6?! { [%eval 1.21] } { Inaccuracy. O-O-O was best. } { [%clk 0:52:57] } 17. Kb1?! { [%eval 0.43] } { Inaccuracy. h4 was best. } { [%clk 1:21:02] } 17... Rd8 { [%eval 0.52] [%clk 0:50:54] } 18. g4 { [%eval 0.07] [%clk 1:19:17] } 18... Bg5 { [%eval 0.06] [%clk 0:40:28] } 19. Nc4 { [%eval -0.4] [%clk 1:19:03] } 19... Bf4 { [%eval -0.41] [%clk 0:40:50] } 20. g5?? { [%eval -2.52] } { Blunder. Rxd8+ was best. } { [%clk 1:06:24] } 20... hxg5?! { [%eval -1.79] } { Inaccuracy. Rxd1+ was best. } { [%clk 0:38:22] } 21. Rxd8+ { [%eval -1.63] [%clk 1:06:44] } 21... Kxd8 { [%eval -1.7] [%clk 0:38:32] } 22. Rd1+ { [%eval -1.69] [%clk 1:07:09] } 22... Ke8 { [%eval -1.64] [%clk 0:39:02] } 23. Nd6+? { [%eval -2.96] } { Mistake. Qd3 was best. } { [%clk 1:00:34] } 23... Kf8 { [%eval -2.95] [%clk 0:39:13] } 24. Qb3 { [%eval -3.61] [%clk 1:00:27] } 24... Nc8?! { [%eval -2.37] } { Inaccuracy. Ng8 was best. } { [%clk 0:36:09] } 25. Nxf7? { [%eval -4.12] } { Mistake. Nxc8 was best. } { [%clk 0:42:37] } 25... Qxf7 { [%eval -4.11] [%clk 0:35:43] } 26. Rd8+ { [%eval -4.13] [%clk 0:42:58] } 26... Be8 { [%eval -4.04] [%clk 0:36:42] } 27. Qd1 { [%eval -4.43] [%clk 0:34:18] } 27... Qc7 { [%eval -4.32] [%clk 0:35:53] } 28. Rd5 { [%eval -5.12] [%clk 0:31:23] } 28... Ke7 { [%eval -4.56] [%clk 0:35:50] } 29. h4 { [%eval -4.69] [%clk 0:30:28] } 29... Bf7 { [%eval -4.48] [%clk 0:35:25] } 30. hxg5 { [%eval -5.12] [%clk 0:26:04] } 30... Bxd5 { [%eval -5.0] [%clk 0:35:48] } 31. exd5 { [%eval -5.65] [%clk 0:26:24] } 31... Nd6 { [%eval -5.2] [%clk 0:36:14] } 32. a3 { [%eval -6.06] [%clk 0:24:59] } 32... Qc8 { [%eval -5.76] [%clk 0:36:36] } 33. Ka2 { [%eval -6.55] [%clk 0:24:57] } 33... Qxf5 { [%eval -6.37] [%clk 0:36:59] } 34. Qb3 { [%eval -6.47] [%clk 0:24:35] } 34... Qd3 { [%eval -6.83] [%clk 0:36:59] } 35. Qb6 { [%eval -6.34] [%clk 0:24:36] } 35... Rc8 { [%eval -6.93] [%clk 0:37:13] } 36. Nh4 { [%eval -7.03] [%clk 0:20:34] } 36... Bxg5 { [%eval -6.63] [%clk 0:37:31] } 37. Nf3 { [%eval -7.15] [%clk 0:20:32] } 37... Bf6 { [%eval -6.89] [%clk 0:37:50] } 38. Bh3 { [%eval -8.33] [%clk 0:19:02] } 38... Qxf3 { [%eval -7.47] [%clk 0:38:03] } 39. Be6 { [%eval -7.16] [%clk 0:18:41] } 39... Qd3 { [%eval -7.01] [%clk 0:38:11] } 40. Ka1 { [%eval -8.96] [%clk 0:18:37] } 40... Qb5 { [%eval -8.66] [%clk 0:38:12] } 0-1