Event: 49th Annual World Open
Site: Philadelphia, Pennsylvania, USA
Date: 2021-07-05
White: Niemann, Hans
WhiteElo: 2571
Black: Zhou, Jianchao
BlackElo: 2603
Result: 1/2-1/2
ECO: A80
Opening: Dutch Defense: Raphael Variation
Variant: Standard

1. d4 { [%eval 0.0] [%clk 1:14:57] } 1... f5?! { [%eval 0.66] } { Inaccuracy. e6 was best. } { [%clk 1:17:42] } 2. Nc3 { [%eval 0.2] [%clk 1:13:32] } 2... Nf6 { [%eval 0.32] [%clk 1:18:07] } 3. Bg5 { [%eval 0.4] [%clk 1:13:52] } 3... d5 { [%eval 0.37] [%clk 1:18:14] } 4. Nf3 { [%eval 0.26] [%clk 1:14:09] } 4... e6 { [%eval 0.44] [%clk 1:17:38] } 5. e3 { [%eval 0.33] [%clk 1:14:27] } 5... Be7 { [%eval 0.55] [%clk 1:17:00] } 6. Bd3 { [%eval 0.32] [%clk 1:14:09] } 6... O-O { [%eval 0.55] [%clk 1:10:21] } 7. O-O { [%eval 0.4] [%clk 1:14:27] } 7... h6 { [%eval 0.4] [%clk 0:52:55] } 8. Bh4 { [%eval 0.03] [%clk 1:10:35] } 8... c5 { [%eval 0.13] [%clk 0:49:35] } 9. dxc5 { [%eval 0.12] [%clk 1:10:45] } 9... Nc6 { [%eval 0.39] [%clk 0:49:59] } 10. Bg3 { [%eval 0.16] [%clk 1:01:45] } 10... Ne4 { [%eval 0.26] [%clk 0:48:36] } 11. Ne2 { [%eval -0.2] [%clk 0:56:44] } 11... Nxc5 { [%eval -0.09] [%clk 0:48:10] } 12. a3 { [%eval -0.47] [%clk 0:52:03] } 12... Bf6 { [%eval -0.79] [%clk 0:43:02] } 13. Rb1 { [%eval -0.35] [%clk 0:52:22] } 13... e5 { [%eval -0.31] [%clk 0:35:23] } 14. b4?! { [%eval -1.02] } { Inaccuracy. Bb5 was best. } { [%clk 0:52:16] } 14... Ne4 { [%eval -1.1] [%clk 0:34:03] } 15. Nd2?! { [%eval -1.91] } { Inaccuracy. Bb5 was best. } { [%clk 0:47:13] } 15... Be6 { [%eval -1.84] [%clk 0:32:02] } 16. Nb3 { [%eval -1.98] [%clk 0:39:32] } 16... b6?! { [%eval -1.12] } { Inaccuracy. Bf7 was best. } { [%clk 0:31:30] } 17. f4 { [%eval -1.08] [%clk 0:39:15] } 17... Nxg3 { [%eval -0.57] [%clk 0:29:52] } 18. hxg3 { [%eval -0.87] [%clk 0:36:43] } 18... e4 { [%eval -0.77] [%clk 0:21:31] } 19. Bb5 { [%eval -0.68] [%clk 0:36:59] } 19... Ne7 { [%eval -0.7] [%clk 0:21:55] } 20. Ned4 { [%eval -0.87] [%clk 0:36:45] } 20... Bd7?! { [%eval -0.31] } { Inaccuracy. Bf7 was best. } { [%clk 0:22:13] } 21. Ba6 { [%eval -0.51] [%clk 0:33:30] } 21... Rb8 { [%eval -0.29] [%clk 0:17:10] } 22. c4 { [%eval -0.23] [%clk 0:31:30] } 22... dxc4 { [%eval -0.07] [%clk 0:17:06] } 23. Bxc4+ { [%eval 0.06] [%clk 0:31:50] } 23... Kh8 { [%eval 0.0] [%clk 0:17:34] } 24. Qe2 { [%eval -0.1] [%clk 0:31:55] } 24... Qe8 { [%eval -0.27] [%clk 0:16:40] } 25. Rfd1 { [%eval 0.05] [%clk 0:32:01] } 25... Qg6 { [%eval -0.16] [%clk 0:16:50] } 26. Kf2 { [%eval -0.29] [%clk 0:31:06] } 26... Rfd8 { [%eval -0.15] [%clk 0:16:42] } 27. b5 { [%eval -0.09] [%clk 0:29:49] } 27... Qe8 { [%eval -0.08] [%clk 0:15:04] } 28. Rd2 { [%eval 0.0] [%clk 0:28:57] } 28... g6 { [%eval 0.16] [%clk 0:13:34] } 29. Rbd1 { [%eval 0.58] [%clk 0:28:14] } 29... h5 { [%eval 0.64] [%clk 0:13:29] } 30. a4?! { [%eval 0.07] } { Inaccuracy. Nc1 was best. } { [%clk 0:28:21] } 30... Rbc8 { [%eval 0.27] [%clk 0:11:28] } 31. Be6?! { [%eval -0.45] } { Inaccuracy. Ne6 was best. } { [%clk 0:28:24] } 31... Bxe6 { [%eval -0.37] [%clk 0:10:49] } 32. Nxe6 { [%eval -0.52] [%clk 0:28:52] } 32... Rxd2 { [%eval -0.64] [%clk 0:11:13] } 33. Qxd2 { [%eval -0.63] [%clk 0:28:58] } 33... Ng8 { [%eval -0.25] [%clk 0:09:34] } 34. Ned4?! { [%eval -0.79] } { Inaccuracy. Nbd4 was best. } { [%clk 0:27:15] } 34... Qf7 { [%eval -0.66] [%clk 0:09:13] } 35. Rc1 { [%eval -0.51] [%clk 0:24:41] } 35... Rc4 { [%eval -0.42] [%clk 0:08:47] } 36. Qa2? { [%eval -1.74] } { Mistake. Rc2 was best. } { [%clk 0:25:05] } 36... Nh6 { [%eval -2.05] [%clk 0:04:54] } 37. Ke2 { [%eval -2.12] [%clk 0:25:29] } 37... Qd5? { [%eval -0.8] } { Mistake. Bxd4 was best. } { [%clk 0:04:03] } 38. Qd2?? { [%eval -2.75] } { Blunder. Nd2 was best. } { [%clk 0:19:58] } 38... Ng4 { [%eval -2.12] [%clk 0:03:25] } 39. Rc2 { [%eval -2.81] [%clk 0:18:52] } 39... Rxa4? { [%eval -1.5] } { Mistake. Kh7 was best. } { [%clk 0:02:35] } 40. Qc3 { [%eval -1.37] [%clk 0:49:20] } 40... Kh7? { [%eval 0.0] } { Mistake. Qd8 was best. } { [%clk 0:30:45] } 41. Qc6 { [%eval 0.0] [%clk 0:46:24] } 41... Qg8 { [%eval 0.0] [%clk 0:04:38] } 42. Qb7+ { [%eval 0.0] [%clk 0:46:47] } 42... Kh6 { [%eval 0.0] [%clk 0:04:07] } 43. Rc8 { [%clk 0:47:08] } 43... Ra2+ { [%clk 0:03:54] } 44. Ke1 { [%clk 0:47:34] } 44... Qg7 { [%clk 0:01:32] } 45. Rc7 { [%clk 0:47:57] } 45... Qh8 { [%clk 0:01:08] } 46. Rc8 { [%clk 0:48:11] } 46... Qg7 { [%clk 0:00:48] } 47. Rc7 { [%clk 0:48:36] } 47... Qh8 { [%clk 0:00:37] } 48. Rc8 { [%clk 0:49:00] } 1/2-1/2