Event: Round 4: Kao, Jamison Edrich - Rolston, Daniel Haruma
Date: 2025-07-24
White: Kao, Jamison Edrich
WhiteTitle: CM
WhiteElo: 2018
Black: Rolston, Daniel Haruma
BlackElo: 1871
Result: 1-0
ECO: B31
Opening: Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation
Variant: Standard
TimeControl: 90+30

1. e4 { [%eval 0.18] [%clk 1:28:42] } 1... c5 { [%eval 0.25] [%clk 1:30:56] } 2. Nf3 { [%eval 0.2] [%clk 1:29:08] } 2... Nc6 { [%eval 0.3] [%clk 1:31:22] } 3. Bb5 { [%eval 0.17] [%clk 1:27:08] } 3... g6 { [%eval 0.24] [%clk 1:31:46] } 4. Bxc6 { [%eval 0.27] [%clk 1:26:44] } 4... dxc6 { [%eval 0.5] [%clk 1:32:10] } 5. d3 { [%eval 0.4] [%clk 1:27:11] } 5... Bg7 { [%eval 0.28] [%clk 1:32:31] } 6. h3 { [%eval 0.3] [%clk 1:26:41] } 6... Nf6 { [%eval 0.53] [%clk 1:32:50] } 7. Nc3 { [%eval 0.31] [%clk 1:27:00] } 7... O-O { [%eval 0.38] [%clk 1:33:10] } 8. Be3 { [%eval 0.32] [%clk 1:23:33] } 8... b6 { [%eval 0.4] [%clk 1:32:49] } 9. Qd2 { [%eval 0.33] [%clk 1:22:08] } 9... e5 { [%eval 0.25] [%clk 1:27:06] } 10. O-O { [%eval 0.28] [%clk 1:16:29] } 10... Qd6 { [%eval 0.38] [%clk 1:18:53] } 11. a3 { [%eval 0.27] [%clk 1:03:41] } 11... Be6 { [%eval 0.38] [%clk 1:07:09] } 12. Ng5 { [%eval 0.04] [%clk 1:01:58] } 12... c4 { [%eval 0.47] [%clk 0:59:52] } 13. f4 { [%eval 0.46] [%clk 0:54:06] } 13... Nh5?! { [%eval 1.28] } { Inaccuracy. exf4 was best. } { [%clk 0:29:28] } 14. f5 { [%eval 1.29] [%clk 0:50:25] } 14... Bc8 { [%eval 1.04] [%clk 0:28:38] } 15. fxg6?! { [%eval 0.0] } { Inaccuracy. g4 was best. } { [%clk 0:29:20] } 15... hxg6 { [%eval 0.53] [%clk 0:28:26] } 16. dxc4 { [%eval 0.6] [%clk 0:29:34] } 16... Qe7 { [%eval 1.09] [%clk 0:20:44] } 17. Rad1 { [%eval 0.93] [%clk 0:23:45] } 17... Nf4 { [%eval 1.12] [%clk 0:18:10] } 18. Nf3 { [%eval 1.01] [%clk 0:22:20] } 18... Be6?! { [%eval 1.71] } { Inaccuracy. Ne6 was best. } { [%clk 0:16:26] } 19. c5 { [%eval 1.44] [%clk 0:22:35] } 19... Rfd8 { [%eval 1.24] [%clk 0:15:13] } 20. Qf2 { [%eval 1.19] [%clk 0:22:02] } 20... b5 { [%eval 1.06] [%clk 0:14:47] } 21. Kh2 { [%eval 1.02] [%clk 0:21:13] } 21... g5?! { [%eval 2.07] } { Inaccuracy. a5 was best. } { [%clk 0:08:25] } 22. Rd6 { [%eval 2.1] [%clk 0:12:45] } 22... Rdc8?! { [%eval 2.76] } { Inaccuracy. Rac8 was best. } { [%clk 0:05:18] } 23. Re1 { [%eval 2.45] [%clk 0:11:21] } 23... a5 { [%eval 2.41] [%clk 0:02:22] } 24. Bxf4 { [%eval 1.94] [%clk 0:11:32] } 24... gxf4 { [%eval 2.1] [%clk 0:02:07] } 25. Nh4? { [%eval 0.43] } { Mistake. g3 was best. } { [%clk 0:10:08] } 25... Bf6?? { [%eval 2.71] } { Blunder. Qg5 was best. } { [%clk 0:01:35] } 26. Nf5 { [%eval 2.8] [%clk 0:08:14] } 26... Bxf5 { [%eval 2.83] [%clk 0:01:27] } 27. exf5 { [%eval 2.64] [%clk 0:08:43] } 27... Bh4 { [%eval 2.61] [%clk 0:01:36] } 28. Qf3 { [%eval 2.75] [%clk 0:08:12] } 28... Bxe1?? { [%eval 7.29] } { Blunder. Qg5 was best. } { [%clk 0:00:42] } 29. Qg4+ { [%eval 7.37] [%clk 0:08:14] } 29... Kf8 { [%eval 7.94] [%clk 0:00:52] } 30. f6 { [%eval 7.67] [%clk 0:08:39] } 30... Bg3+ { [%eval 7.25] [%clk 0:00:38] } 31. Kh1 { [%eval 7.04] [%clk 0:09:04] } 31... Qxd6? { [%eval #5] } { Checkmate is now unavoidable. Qxf6 was best. } { [%clk 0:00:36] } 32. cxd6 { [%eval #4] [%clk 0:09:30] } 32... Rd8 { [%eval #3] [%clk 0:00:35] } 33. Qg7+ { [%eval #3] [%clk 0:09:38] } 33... Ke8 { [%eval #3] [%clk 0:00:56] } 34. Qg8+ { [%eval #2] [%clk 0:10:06] } 34... Kd7 { [%eval #2] [%clk 0:01:20] } 35. Qxf7+ { [%eval #1] [%clk 0:10:34] } 1-0