Event: Round 4: Vasu Sanjay - Ko Ohn Ko
Date: 2023-10-22
White: Vasu Sanjay
WhiteElo: 1676
Black: Ko Ohn Ko
BlackTitle: FM
BlackElo: 2145
Result: 0-1
ECO: B67
Opening: Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation
Variant: Standard

1. e4 { [%eval 0.36] [%clk 0:10:01] } 1... c5 { [%eval 0.32] [%clk 0:10:03] } 2. Nf3 { [%eval 0.0] [%clk 0:10:01] } 2... d6 { [%eval 0.0] [%clk 0:10:03] } 3. d4 { [%eval 0.25] [%clk 0:10:01] } 3... Bd7? { [%eval 1.48] } { Mistake. cxd4 was best. } { [%clk 0:10:05] } 4. Ng1? { [%eval -0.15] } { Mistake. d5 was best. } { [%clk 1:31:23] } 4... Bc8?? { [%eval 1.64] } { Blunder. cxd4 was best. } { [%clk 1:30:14] } 5. Nf3? { [%eval 0.25] } { Mistake. dxc5 was best. } { [%clk 1:31:26] } 5... cxd4 { [%eval 0.13] [%clk 1:30:39] } 6. Nxd4 { [%eval 0.27] [%clk 1:31:54] } 6... Nf6 { [%eval 0.3] [%clk 1:30:39] } 7. Nc3 { [%eval 0.21] [%clk 1:31:54] } 7... Nc6 { [%eval 0.47] [%clk 1:30:39] } 8. Bg5 { [%eval 0.33] [%clk 1:31:54] } 8... e6 { [%eval 0.34] [%clk 1:30:39] } 9. Qd2 { [%eval 0.31] [%clk 1:31:54] } 9... a6 { [%eval 0.47] [%clk 1:28:56] } 10. O-O-O { [%eval 0.47] [%clk 1:31:05] } 10... Bd7 { [%eval 0.5] [%clk 1:27:47] } 11. Re1?! { [%eval -0.13] } { Inaccuracy. f3 was best. } { [%clk 1:22:27] } 11... Be7 { [%eval -0.01] [%clk 1:26:24] } 12. f4 { [%eval -0.24] } 12... h6 { [%eval -0.27] [%clk 1:26:03] } 13. Bh4 { [%eval -0.16] [%clk 1:13:57] } 13... g5 { [%eval 0.25] [%clk 1:20:15] } 14. fxg5 { [%eval 0.28] [%clk 1:06:18] } 14... Ng4 { [%eval 0.18] [%clk 1:20:19] } 15. Nxc6 { [%eval 0.3] [%clk 1:05:27] } 15... Bxc6 { [%eval 0.3] [%clk 1:16:58] } 16. Be2 { [%eval 0.1] [%clk 1:00:50] } 16... Ne5 { [%eval 0.03] [%clk 1:16:25] } 17. Kb1 { [%eval 0.04] [%clk 1:00:48] } 17... hxg5 { [%eval 0.05] [%clk 1:11:22] } 18. Bg3 { [%eval 0.13] [%clk 1:01:03] } 18... b5 { [%eval 0.03] [%clk 1:03:04] } 19. Rhf1 { [%eval -0.48] [%clk 0:57:34] } 19... b4 { [%eval -0.54] [%clk 1:03:04] } 20. Nd1 { [%eval -0.5] [%clk 0:57:58] } 20... Bxe4 { [%eval -0.53] [%clk 1:03:14] } 21. Qxb4 { [%eval -0.95] [%clk 0:57:30] } 21... Bg6?! { [%eval -0.31] } { Inaccuracy. Bxg2 was best. } { [%clk 1:03:17] } 22. Bxa6?? { [%eval -2.12] } { Blunder. Qa4+ was best. } { [%clk 0:54:36] } 22... O-O? { [%eval -0.52] } { Mistake. Rxa6 was best. } { [%clk 1:00:02] } 23. Bb5 { [%eval -0.74] [%clk 0:50:56] } 23... Qc7 { [%eval -0.68] [%clk 0:50:16] } 24. Nc3 { [%eval -0.64] [%clk 0:50:53] } 24... Rfb8 { [%eval -0.43] [%clk 0:49:04] } 25. a4?! { [%eval -1.45] } { Inaccuracy. Re2 was best. } { [%clk 0:50:37] } 25... Bf8?? { [%eval 1.02] } { Blunder. Rxb5 was best. } { [%clk 0:46:50] } 26. h4?? { [%eval -1.14] } { Blunder. Rf6 was best. } 26... Rxb5 { [%eval -1.14] [%clk 0:41:11] } 27. axb5 { [%eval -1.57] [%clk 0:43:44] } 27... Nc4 { [%eval -1.46] } 28. b6?! { [%eval -2.31] } { Inaccuracy. h5 was best. } { [%clk 0:42:36] } 28... Nxb6 { [%eval -2.24] [%clk 0:39:49] } 29. Rf6 { [%eval -2.44] [%clk 0:35:28] } 29... Nc4 { [%eval -2.46] [%clk 0:35:54] } 30. Rxg6+ { [%eval -2.94] [%clk 0:35:27] } 30... fxg6 { [%eval -3.01] [%clk 0:36:20] } 31. Nb5 { [%eval -3.35] [%clk 0:34:45] } 31... Qc8 { [%eval -3.45] [%clk 0:35:03] } 32. c3? { [%eval -5.58] } { Mistake. Bxd6 was best. } { [%clk 0:21:41] } 32... Ra6? { [%eval -2.98] } { Mistake. e5 was best. } { [%clk 0:32:18] } 33. Kc2?! { [%eval -4.46] } { Inaccuracy. Nxd6 was best. } { [%clk 0:19:06] } 33... e5 { [%eval -5.55] [%clk 0:28:57] } 34. Na3 { [%eval -5.78] [%clk 0:15:20] } 34... d5 { [%eval -5.78] [%clk 0:28:00] } 35. Qb5 { [%eval -5.92] } 35... Ra5 { [%eval -5.77] [%clk 0:27:51] } 36. Qb3?? { [%eval #-14] } { Checkmate is now unavoidable. Qxa5 was best. } { [%clk 0:15:38] } 36... Bxa3?? { [%eval -5.98] } { Lost forced checkmate sequence. Qf5+ was best. } { [%clk 0:27:38] } 37. bxa3 { [%eval -5.9] [%clk 0:15:18] } 37... Rxa3 { [%eval -5.98] [%clk 0:27:26] } 38. Qb4?? { [%eval #-4] } { Checkmate is now unavoidable. Qxa3 was best. } { [%clk 0:15:46] } 38... Qf5+ { [%eval #-3] [%clk 0:27:32] } 39. Kd1 { [%eval #-3] [%clk 0:16:04] } 39... Qd3+ { [%eval #-2] [%clk 0:27:45] } 0-1