Event: Round 5: Daniel Haruma Rolston - Ko Ko Ohn
Date: 2024-02-25
White: Daniel Haruma Rolston
WhiteElo: 1592
Black: Ko Ko Ohn
BlackTitle: FM
BlackElo: 2126
Result: 0-1
ECO: B22
Opening: Sicilian Defense: Alapin Variation
Variant: Standard

1. e4 { [%eval 0.13] [%clk 1:30:57] } 1... c5 { [%eval 0.33] [%clk 1:30:52] } 2. c3 { [%eval 0.04] [%clk 1:31:22] } 2... d6 { [%eval 0.48] [%clk 1:29:01] } 3. d4 { [%eval 0.66] [%clk 1:30:44] } 3... Nf6 { [%eval 0.63] [%clk 1:29:23] } 4. dxc5 { [%eval 0.43] [%clk 1:27:46] } 4... Nc6 { [%eval 0.49] [%clk 1:26:19] } 5. cxd6 { [%eval 0.0] [%clk 1:19:33] } 5... Nxe4 { [%eval 0.08] [%clk 1:25:58] } 6. Be3 { [%eval -0.1] [%clk 1:18:57] } 6... e6 { [%eval 0.1] [%clk 1:24:12] } 7. Bd3 { [%eval 0.08] [%clk 1:18:22] } 7... Nxd6 { [%eval 0.16] [%clk 1:24:07] } 8. Nd2 { [%eval 0.0] [%clk 1:14:39] } 8... Be7 { [%eval 0.07] [%clk 1:23:32] } 9. Qc2 { [%eval -0.44] [%clk 1:13:06] } 9... h6?! { [%eval 0.16] } { Inaccuracy. Ne5 was best. } { [%clk 1:22:29] } 10. Ngf3 { [%eval 0.06] [%clk 1:12:08] } 10... Bd7 { [%eval 0.5] [%clk 1:22:21] } 11. Ne4?! { [%eval -0.12] } { Inaccuracy. O-O-O was best. } { [%clk 1:07:37] } 11... Nxe4 { [%eval -0.1] [%clk 1:13:09] } 12. Bxe4 { [%eval -0.07] [%clk 1:07:59] } 12... Qc7 { [%eval 0.02] [%clk 1:12:23] } 13. O-O-O { [%eval 0.1] [%clk 0:54:24] } 13... O-O-O { [%eval 0.29] [%clk 1:09:57] } 14. Rhe1 { [%eval 0.21] [%clk 0:46:24] } 14... Na5 { [%eval 0.56] [%clk 0:56:57] } 15. Bd4 { [%eval 0.14] [%clk 0:37:17] } 15... f6 { [%eval 0.12] [%clk 0:55:54] } 16. Nh4?? { [%eval -1.81] } { Blunder. Kb1 was best. } { [%clk 0:36:05] } 16... Qf4+ { [%eval -1.88] [%clk 0:55:37] } 17. Kb1 { [%eval -1.9] [%clk 0:31:11] } 17... Qxh4 { [%eval -1.72] [%clk 0:55:52] } 18. Bxa7 { [%eval -1.54] [%clk 0:29:53] } 18... Kc7 { [%eval -1.15] [%clk 0:41:30] } 19. Rxd7+? { [%eval -2.46] } { Mistake. Rd4 was best. } { [%clk 0:16:38] } 19... Rxd7 { [%eval -2.46] [%clk 0:41:44] } 20. Qa4 { [%eval -2.36] [%clk 0:16:33] } 20... Rd5 { [%eval -2.02] [%clk 0:38:38] } 21. b4 { [%eval -2.37] [%clk 0:08:44] } 21... Nc6 { [%eval -2.43] [%clk 0:31:52] } 22. Bxd5 { [%eval -2.93] [%clk 0:03:54] } 22... exd5 { [%eval -2.92] [%clk 0:31:58] } 23. Qb5 { [%eval -2.89] [%clk 0:03:12] } 23... Qc4 { [%eval -2.88] [%clk 0:28:31] } 24. Qb6+?! { [%eval -4.46] } { Inaccuracy. Bb6+ was best. } { [%clk 0:01:56] } 24... Kc8 { [%eval -4.21] [%clk 0:28:19] } 25. Rxe7 { [%eval -4.54] [%clk 0:00:44] } 25... Nxe7 { [%eval -4.59] [%clk 0:26:16] } 26. Qe6+ { [%eval -4.55] [%clk 0:00:50] } 26... Kd8 { [%eval -4.34] [%clk 0:26:38] } 27. Bb6+ { [%eval -4.71] [%clk 0:00:44] } 27... Ke8 { [%eval -4.68] [%clk 0:26:58] } 28. Qd6 { [%eval -5.42] [%clk 0:01:00] } 28... Kf7 { [%eval -5.1] [%clk 0:26:31] } 0-1