Event: 2021 U.S. Open
Site: Cherry Hill, New Jersey, USA
Date: 2021-08-08
White: Nyzhnyk, Illya
WhiteTitle: GM
WhiteElo: 2676
Black: Matviishen, Viktor
BlackTitle: IM
BlackElo: 2510
Result: 1-0
ECO: D91
Opening: Grünfeld Defense: Three Knights Variation, Petrosian System
Variant: Standard
TimeControl: 40/6000+30:1800+30

1. d4 { [%eval 0.0] [%clk 1:40:34] } 1... Nf6 { [%eval 0.19] [%clk 1:40:55] } 2. Nf3 { [%eval 0.12] [%clk 1:40:16] } 2... g6 { [%eval 0.21] [%clk 1:41:09] } 3. c4 { [%eval 0.25] [%clk 1:40:19] } 3... Bg7 { [%eval 0.13] [%clk 1:41:33] } 4. Nc3 { [%eval 0.31] [%clk 1:40:44] } 4... d5 { [%eval 0.27] [%clk 1:41:59] } 5. Bg5 { [%eval 0.13] [%clk 1:39:21] } 5... Ne4 { [%eval 0.36] [%clk 1:41:45] } 6. Bh4 { [%eval 0.0] [%clk 1:39:46] } 6... Nxc3 { [%eval -0.06] [%clk 1:42:07] } 7. bxc3 { [%eval -0.15] [%clk 1:40:14] } 7... dxc4 { [%eval 0.0] [%clk 1:42:30] } 8. e3?! { [%eval -0.57] } { Inaccuracy. Qa4+ was best. } { [%clk 1:37:54] } 8... b5 { [%eval -0.59] [%clk 1:42:53] } 9. a4 { [%eval -0.6] [%clk 1:37:39] } 9... c6 { [%eval -0.44] [%clk 1:43:15] } 10. Ng5?! { [%eval -1.09] } { Inaccuracy. Be2 was best. } { [%clk 1:35:02] } 10... O-O { [%eval -1.29] [%clk 1:07:37] } 11. axb5?! { [%eval -1.93] } { Inaccuracy. Be2 was best. } { [%clk 1:30:06] } 11... cxb5 { [%eval -2.01] [%clk 1:08:03] } 12. Be2 { [%eval -2.08] [%clk 1:14:19] } 12... Bb7 { [%eval -1.9] [%clk 0:55:41] } 13. Bf3 { [%eval -2.05] [%clk 1:14:43] } 13... Bxf3 { [%eval -1.95] [%clk 0:55:52] } 14. Qxf3 { [%eval -2.15] [%clk 1:15:06] } 14... Nd7 { [%eval -1.95] [%clk 0:56:20] } 15. Qb7? { [%eval -3.37] } { Mistake. Qc6 was best. } { [%clk 0:59:02] } 15... a6?! { [%eval -2.36] } { Inaccuracy. Rb8 was best. } { [%clk 0:33:09] } 16. Nf3?! { [%eval -3.48] } { Inaccuracy. Ne4 was best. } { [%clk 0:59:26] } 16... Nc5 { [%eval -3.73] [%clk 0:30:32] } 17. Qxe7 { [%eval -4.0] [%clk 0:58:07] } 17... Nd3+ { [%eval -4.04] [%clk 0:30:58] } 18. Kd2?! { [%eval -5.22] } { Inaccuracy. Ke2 was best. } { [%clk 0:57:13] } 18... Qd5 { [%eval -5.19] [%clk 0:28:18] } 19. Bg3 { [%eval -5.5] [%clk 0:45:01] } 19... Rfe8 { [%eval -5.77] [%clk 0:28:33] } 20. Qc7 { [%eval -5.8] [%clk 0:45:27] } 20... Rac8 { [%eval -5.32] [%clk 0:28:30] } 21. Qa7 { [%eval -6.77] [%clk 0:44:00] } 21... Nc5?! { [%eval -4.8] } { Inaccuracy. b4 was best. } { [%clk 0:28:42] } 22. Ke2 { [%eval -4.55] [%clk 0:44:24] } 22... Na4 { [%eval -5.06] [%clk 0:15:04] } 23. Rhc1 { [%eval -3.46] [%clk 0:42:18] } 23... Qe6 { [%eval -4.96] [%clk 0:09:43] } 24. Bh4 { [%eval -4.66] [%clk 0:39:14] } 24... h6 { [%eval -5.02] [%clk 0:09:58] } 25. Kf1 { [%eval -5.33] [%clk 0:33:38] } 25... g5 { [%eval -5.46] [%clk 0:10:18] } 26. Bg3 { [%eval -5.52] [%clk 0:34:05] } 26... Re7 { [%eval -5.48] [%clk 0:10:41] } 27. d5 { [%eval -5.53] [%clk 0:34:30] } 27... Rxa7 { [%eval -5.13] [%clk 0:10:09] } 28. dxe6 { [%eval -5.52] [%clk 0:34:58] } 28... Nxc3 { [%eval -5.58] [%clk 0:09:51] } 29. Be5 { [%eval -5.4] [%clk 0:34:33] } 29... Ne4 { [%eval -4.79] [%clk 0:08:33] } 30. Bxg7 { [%eval -4.87] [%clk 0:34:31] } 30... Kxg7 { [%eval -4.58] [%clk 0:09:02] } 31. Nd4 { [%eval -4.24] [%clk 0:34:54] } 31... b4 { [%eval -4.66] [%clk 0:08:02] } 32. e7 { [%eval -4.72] [%clk 0:34:36] } 32... c3 { [%eval -4.13] [%clk 0:01:34] } 33. Ke2 { [%eval -4.61] [%clk 0:32:47] } 33... Raa8?! { [%eval -3.23] } { Inaccuracy. a5 was best. } { [%clk 0:00:35] } 34. Ra5 { [%eval -2.79] [%clk 0:29:52] } 34... Nd6?! { [%eval -1.7] } { Inaccuracy. Nd2 was best. } { [%clk 0:00:32] } 35. Rd5 { [%eval -1.96] [%clk 0:24:16] } 35... Ne8 { [%eval -1.96] [%clk 0:01:02] } 36. Kd3 { [%eval -1.71] [%clk 0:22:21] } 36... a5 { [%eval -2.13] [%clk 0:01:21] } 37. Ra1 { [%eval -1.72] [%clk 0:19:37] } 37... a4 { [%eval -2.28] [%clk 0:01:35] } 38. Rd8 { [%eval -2.29] [%clk 0:20:02] } 38... b3?? { [%eval -0.11] } { Blunder. c2 was best. } { [%clk 0:00:49] } 39. Rxc8?! { [%eval -0.68] } { Inaccuracy. Nxb3 was best. } { [%clk 0:18:32] } 39... b2? { [%eval 0.63] } { Mistake. Rxc8 was best. } { [%clk 0:00:32] } 40. Rxe8 { [%eval 0.0] [%clk 0:48:58] } 40... Rxe8 { [%eval 0.0] [%clk 0:30:59] } 41. Rd1 { [%eval 0.0] [%clk 0:44:44] } 1-0