Event: 2021 U.S. Open
Site: Cherry Hill, New Jersey, USA
Date: 2021-08-06
White: O'Brien, Matthew
WhiteTitle: NM
WhiteElo: 2172
Black: Liang, Awonder
BlackTitle: GM
BlackElo: 2587
Result: 0-1
ECO: B11
Opening: Caro-Kann Defense: Two Knights Attack, Mindeno Variation
Variant: Standard
TimeControl: 40/6000+30:1800+30

1. e4 { [%eval 0.24] [%clk 1:40:59] } 1... c6 { [%eval 0.13] [%clk 1:32:52] } 2. Nc3 { [%eval 0.32] [%clk 1:41:12] } 2... d5 { [%eval 0.18] [%clk 1:32:54] } 3. Nf3 { [%eval 0.0] [%clk 1:41:23] } 3... Bg4 { [%eval 0.36] [%clk 1:33:17] } 4. d4 { [%eval 0.13] [%clk 1:39:55] } 4... Nf6 { [%eval 0.0] [%clk 1:33:37] } 5. h3 { [%eval 0.29] [%clk 1:35:08] } 5... Bxf3 { [%eval 0.35] [%clk 1:32:45] } 6. gxf3 { [%eval 0.25] [%clk 1:35:16] } 6... e6 { [%eval 0.29] [%clk 1:33:00] } 7. Qd3 { [%eval 0.31] [%clk 1:31:58] } 7... Nbd7 { [%eval 0.32] [%clk 1:30:26] } 8. Rg1 { [%eval -0.05] [%clk 1:27:17] } 8... g6 { [%eval 0.04] [%clk 1:23:47] } 9. Bd2 { [%eval -0.3] [%clk 1:19:03] } 9... Nb6 { [%eval -0.09] [%clk 1:20:18] } 10. Qe3 { [%eval 0.0] [%clk 1:18:28] } 10... h5 { [%eval -0.08] [%clk 1:19:20] } 11. O-O-O { [%eval -0.24] [%clk 1:17:02] } 11... Bh6 { [%eval -0.19] [%clk 1:18:52] } 12. Qe1 { [%eval -0.09] [%clk 1:16:03] } 12... Bxd2+ { [%eval -0.14] [%clk 1:18:24] } 13. Qxd2 { [%eval -0.1] [%clk 1:15:37] } 13... Qe7 { [%eval -0.19] [%clk 1:18:47] } 14. Kb1 { [%eval -0.13] [%clk 1:15:07] } 14... O-O-O { [%eval 0.0] [%clk 1:18:07] } 15. h4?! { [%eval -0.75] } { Inaccuracy. a4 was best. } { [%clk 1:12:07] } 15... dxe4 { [%eval -0.84] [%clk 1:12:37] } 16. fxe4 { [%eval -0.98] [%clk 1:12:12] } 16... e5 { [%eval -0.93] [%clk 1:12:59] } 17. Qe3 { [%eval -0.95] [%clk 1:11:36] } 17... Ng4 { [%eval -0.78] [%clk 1:12:11] } 18. Bh3?! { [%eval -1.33] } { Inaccuracy. Qg3 was best. } { [%clk 1:08:30] } 18... Nc4 { [%eval -1.11] [%clk 1:10:50] } 19. Qg3 { [%eval -1.24] [%clk 1:03:27] } 19... Qb4?! { [%eval -0.65] } { Inaccuracy. Rxd4 was best. } { [%clk 1:04:14] } 20. b3 { [%eval -0.85] [%clk 0:55:02] } 20... exd4 { [%eval -0.88] [%clk 1:03:12] } 21. Ne2 { [%eval -0.86] [%clk 0:54:06] } 21... f5?! { [%eval -0.29] } { Inaccuracy. Nd2+ was best. } { [%clk 0:48:23] } 22. exf5 { [%eval -0.49] [%clk 0:49:21] } 22... Nd2+ { [%eval 0.0] [%clk 0:39:17] } 23. Ka1?? { [%eval -2.31] } { Blunder. Kb2 was best. } { [%clk 0:25:49] } 23... d3 { [%eval -2.92] [%clk 0:37:52] } 24. c3?! { [%eval -4.11] } { Inaccuracy. Bxg4 was best. } { [%clk 0:16:23] } 24... Nxb3+ { [%eval -3.75] [%clk 0:37:09] } 25. Kb2 { [%eval -4.14] [%clk 0:16:18] } 25... Qe7?? { [%eval -1.31] } { Blunder. Qb6 was best. } { [%clk 0:35:12] } 26. Nf4 { [%eval -2.47] [%clk 0:15:14] } 26... Nc5?? { [%eval 0.0] } { Blunder. Na5 was best. } { [%clk 0:31:48] } 27. f3?? { [%eval -12.54] } { Blunder. fxg6 was best. } { [%clk 0:11:00] } 27... Na4+ { [%eval -13.27] [%clk 0:30:44] } 28. Kb3 { [%eval -25.87] [%clk 0:11:05] } 28... Qc5 { [%eval -19.56] [%clk 0:31:08] } 29. c4 { [%eval #-6] [%clk 0:08:07] } 29... Qd4 { [%eval #-9] [%clk 0:31:18] } 30. Rc1 { [%eval #-5] [%clk 0:05:03] } 30... Qb2+ { [%eval #-4] [%clk 0:30:57] } 31. Kxa4 { [%eval #-4] [%clk 0:05:03] } 31... Qxa2+ { [%eval #-5] [%clk 0:31:13] } 32. Kb4 { [%eval #-5] [%clk 0:05:25] } 32... a5+ { [%eval #-6] [%clk 0:31:09] } 33. Kc5 { [%eval #-3] [%clk 0:04:53] } 33... Qa3+ { [%eval #-3] [%clk 0:31:33] } 34. Kb6 { [%clk 0:05:06] } 34... Qb4+ { [%clk 0:31:59] } 35. Ka7 { [%clk 0:05:20] } 35... Qc5+ { [%clk 0:32:24] } 36. Ka8 { [%clk 0:05:42] } 36... Kc7# 0-1