Event: 1ST BANGKOK SUMMER INTERNATIONAL CHESS OPEN - Standard
Site: Bangkok, Thailand
Date: 2025-07-07
White: Das, Sayantan
WhiteTitle: GM
WhiteElo: 2434
Black: Sai Han Thiha
BlackTitle: FM
BlackElo: 2121
Result: 1-0
ECO: A05
Opening: King's Indian Attack: Symmetrical Defense
Variant: Standard
TimeControl: 90 + 30

1. Nf3 { [%eval 0.1] [%clk 1:23:39] } 1... Nf6 { [%eval 0.23] [%clk 1:30:50] } 2. g3 { [%eval 0.11] [%clk 1:23:55] } 2... g6 { [%eval 0.21] [%clk 1:28:41] } 3. Bg2 { [%eval 0.13] [%clk 1:23:10] } 3... Bg7 { [%eval 0.22] [%clk 1:29:05] } 4. O-O { [%eval 0.16] [%clk 1:23:19] } 4... O-O { [%eval 0.21] [%clk 1:29:27] } 5. c4 { [%eval 0.1] [%clk 1:23:45] } 5... d6 { [%eval 0.32] [%clk 1:26:58] } 6. Nc3 { [%eval 0.22] [%clk 1:23:43] } 6... e5 { [%eval 0.33] [%clk 1:26:53] } 7. d3 { [%eval 0.2] [%clk 1:24:04] } 7... Nc6 { [%eval 0.28] [%clk 1:26:30] } 8. Rb1 { [%eval 0.22] [%clk 1:23:49] } 8... a5 { [%eval 0.29] [%clk 1:25:55] } 9. b3 { [%eval 0.24] [%clk 1:22:45] } 9... d5 { [%eval 0.37] [%clk 1:04:09] } 10. Bg5 { [%eval 0.38] [%clk 1:16:31] } 10... d4 { [%eval 0.41] [%clk 0:50:50] } 11. Ne4 { [%eval 0.42] [%clk 1:15:40] } 11... Re8 { [%eval 0.51] [%clk 0:49:47] } 12. a3 { [%eval 0.25] [%clk 1:11:03] } 12... Qe7 { [%eval 0.55] [%clk 0:46:12] } 13. b4 { [%eval 0.54] [%clk 1:02:56] } 13... axb4 { [%eval 0.59] [%clk 0:46:22] } 14. axb4 { [%eval 0.51] [%clk 1:03:24] } 14... h6 { [%eval 0.53] [%clk 0:44:32] } 15. Nxf6+ { [%eval 0.55] [%clk 0:58:16] } 15... Bxf6 { [%eval 0.55] [%clk 0:45:00] } 16. Bxh6?! { [%eval -0.03] } { Inaccuracy. Bxf6 was best. } { [%clk 0:53:21] } 16... Nxb4 { [%eval -0.06] [%clk 0:45:24] } 17. Bd2 { [%eval -0.4] [%clk 0:53:15] } 17... Na6?! { [%eval 0.4] } { Inaccuracy. Na2 was best. } { [%clk 0:42:03] } 18. h4 { [%eval 0.41] [%clk 0:51:22] } 18... e4 { [%eval 0.46] [%clk 0:39:32] } 19. dxe4 { [%eval 0.33] [%clk 0:42:55] } 19... Qxe4 { [%eval 0.39] [%clk 0:40:01] } 20. Ng5 { [%eval 0.05] [%clk 0:34:23] } 20... Qxe2 { [%eval 0.07] [%clk 0:38:08] } 21. Qa4 { [%eval 0.1] [%clk 0:28:43] } 21... Rf8? { [%eval 1.41] } { Mistake. Bxg5 was best. } { [%clk 0:28:12] } 22. Rfe1 { [%eval 1.6] [%clk 0:22:12] } 22... Qg4 { [%eval 1.89] [%clk 0:15:21] } 23. Qa3 { [%eval 1.74] [%clk 0:18:55] } 23... Rb8?! { [%eval 2.95] } { Inaccuracy. c5 was best. } { [%clk 0:12:25] } 24. Nh7 { [%eval 2.98] [%clk 0:15:26] } 24... Kxh7 { [%eval 2.94] [%clk 0:11:45] } 25. Qxf8 { [%eval 2.83] [%clk 0:15:53] } 25... Be6 { [%eval 2.73] [%clk 0:12:09] } 26. Qh6+ { [%eval 2.94] [%clk 0:15:44] } 26... Kg8 { [%eval 2.77] [%clk 0:12:28] } 27. Bxb7 { [%eval 2.69] [%clk 0:15:17] } 27... Nc5?? { [%eval 5.64] } { Blunder. Bg7 was best. } { [%clk 0:11:51] } 28. Bf3 { [%eval 5.64] [%clk 0:14:09] } 28... Rxb1 { [%eval 5.53] [%clk 0:11:12] } 29. Rd1?? { [%eval #-12] } { Checkmate is now unavoidable. Rxb1 was best. } { [%clk 0:07:32] } 29... Rc1?? { [%eval 4.63] } { Lost forced checkmate sequence. Rxd1+ was best. } { [%clk 0:11:11] } 30. Rxc1?? { [%eval -5.02] } { Blunder. Bxg4 was best. } { [%clk 0:07:32] } 30... Qf5?? { [%eval 1.04] } { Blunder. Qxf3 was best. } { [%clk 0:11:18] } 31. Rb1?? { [%eval -5.2] } { Blunder. Bf4 was best. } { [%clk 0:07:57] } 31... Bc8?? { [%eval 4.76] } { Blunder. Qxb1+ was best. } { [%clk 0:11:44] } 32. Rb8 { [%eval 4.59] [%clk 0:08:00] } 32... Be7?! { [%eval 6.96] } { Inaccuracy. Nd3 was best. } { [%clk 0:01:34] } 33. Bb4?! { [%eval 4.34] } { Inaccuracy. Bd5 was best. } { [%clk 0:06:35] } 1-0