Event: 2021 U.S. Open
Site: Cherry Hill, New Jersey, USA
Date: 2021-08-07
White: Niemann, Hans
WhiteTitle: GM
WhiteElo: 2606
Black: Rosenthal, Nicholas
BlackTitle: NM
BlackElo: 2137
Result: 1-0
ECO: D30
Opening: Queen's Gambit Declined
Variant: Standard
TimeControl: 40/6000+30:1800+30

1. d4 { [%eval 0.0] [%clk 1:40:55] } 1... e6 { [%eval 0.21] [%clk 1:40:49] } 2. c4 { [%eval 0.13] [%clk 1:41:14] } 2... d5 { [%eval 0.2] [%clk 1:41:12] } 3. Nf3 { [%eval 0.0] [%clk 1:41:37] } 3... c6 { [%eval 0.36] [%clk 1:41:35] } 4. e3 { [%eval 0.32] [%clk 1:42:01] } 4... f5 { [%eval 0.65] [%clk 1:41:23] } 5. Be2 { [%eval 0.51] [%clk 1:42:26] } 5... Nf6 { [%eval 0.65] [%clk 1:41:48] } 6. O-O { [%eval 0.25] [%clk 1:42:54] } 6... Bd6 { [%eval 0.74] [%clk 1:42:10] } 7. b3 { [%eval 0.65] [%clk 1:43:22] } 7... Qe7 { [%eval 0.69] [%clk 1:42:28] } 8. a4 { [%eval 0.61] [%clk 1:43:49] } 8... O-O { [%eval 0.8] [%clk 1:42:29] } 9. Ba3 { [%eval 0.89] [%clk 1:44:13] } 9... Nbd7 { [%eval 0.99] [%clk 1:41:53] } 10. Bxd6 { [%eval 0.9] [%clk 1:43:22] } 10... Qxd6 { [%eval 1.04] [%clk 1:42:16] } 11. a5 { [%eval 0.88] [%clk 1:43:49] } 11... f4? { [%eval 2.0] } { Mistake. e5 was best. } { [%clk 1:41:14] } 12. exf4 { [%eval 1.85] [%clk 1:41:32] } 12... Qxf4 { [%eval 1.93] [%clk 1:41:34] } 13. Nc3 { [%eval 2.16] [%clk 1:41:14] } 13... Qd6 { [%eval 2.69] [%clk 1:36:11] } 14. Re1 { [%eval 2.84] [%clk 1:40:15] } 14... Ne4 { [%eval 2.96] [%clk 1:31:11] } 15. Qc2 { [%eval 2.91] [%clk 1:38:08] } 15... Ndf6 { [%eval 3.51] [%clk 1:28:07] } 16. Bd3 { [%eval 3.04] [%clk 1:36:54] } 16... Nxc3 { [%eval 3.03] [%clk 1:27:49] } 17. Qxc3 { [%eval 3.01] [%clk 1:37:13] } 17... Ng4 { [%eval 3.02] [%clk 1:27:44] } 18. Bc2 { [%eval 2.46] [%clk 1:30:29] } 18... Bd7?! { [%eval 3.87] } { Inaccuracy. Rxf3 was best. } { [%clk 1:26:15] } 19. h3 { [%eval 3.87] [%clk 1:30:08] } 19... Rxf3?! { [%eval 5.4] } { Inaccuracy. Nh6 was best. } { [%clk 1:24:45] } 20. Qxf3 { [%eval 5.65] [%clk 1:30:30] } 20... Qh2+ { [%eval 5.18] [%clk 1:25:12] } 21. Kf1 { [%eval 5.77] [%clk 1:30:54] } 21... Nxf2 { [%eval 6.5] [%clk 1:25:39] } 22. Kxf2 { [%eval 6.53] [%clk 1:31:15] } 22... g6 { [%eval 6.65] [%clk 1:24:33] } 23. Rh1 { [%eval 6.53] [%clk 1:31:21] } 23... Qd6 { [%eval 7.38] [%clk 1:24:56] } 24. c5 { [%eval 7.65] [%clk 1:31:34] } 24... Qe7 { [%eval 7.68] [%clk 1:25:22] } 25. Qe3 { [%eval 7.84] [%clk 1:31:52] } 25... Qh4+ { [%eval 8.54] [%clk 1:25:36] } 26. g3 { [%eval 8.28] [%clk 1:32:11] } 26... Qh5 { [%eval 8.62] [%clk 1:25:54] } 27. Kg2 { [%eval 9.0] [%clk 1:32:22] } 27... e5 { [%eval 9.13] [%clk 1:26:11] } 28. Qxe5 { [%eval 8.33] [%clk 1:32:27] } 28... Qh6 { [%eval 9.05] [%clk 1:26:37] } 29. Qf4 { [%eval 8.69] [%clk 1:32:41] } 29... Qh5 { [%eval 10.32] [%clk 1:27:01] } 30. Bd1 { [%eval 8.75] [%clk 1:32:40] } 1-0