Event: 49th Annual World Open
Site: Philadelphia, Pennsylvania, USA
Date: 2021-07-04
White: Xiong, Jeffery
WhiteElo: 2709
Black: Niemann, Hans
BlackElo: 2571
Result: *
ECO: E08
Opening: Catalan Opening: Closed
Variant: Standard

1. d4 { [%eval 0.0] [%clk 1:17:05] } 1... Nf6 { [%eval 0.19] [%clk 1:13:05] } 2. c4 { [%eval 0.11] [%clk 1:17:20] } 2... e6 { [%eval 0.39] [%clk 1:12:03] } 3. g3 { [%eval 0.16] [%clk 1:17:35] } 3... d5 { [%eval 0.44] [%clk 1:07:16] } 4. Bg2 { [%eval 0.13] [%clk 1:17:34] } 4... Bb4+ { [%eval 0.27] [%clk 1:06:56] } 5. Bd2 { [%eval -0.13] [%clk 1:17:53] } 5... Be7 { [%eval 0.19] [%clk 1:07:18] } 6. Nf3 { [%eval 0.0] [%clk 1:18:10] } 6... O-O { [%eval 0.32] [%clk 1:07:28] } 7. O-O { [%eval 0.13] [%clk 1:18:31] } 7... c6 { [%eval 0.17] [%clk 1:07:51] } 8. Qc2 { [%eval 0.21] [%clk 1:18:45] } 8... Nbd7 { [%eval 0.17] [%clk 1:07:25] } 9. Rd1 { [%eval 0.08] [%clk 1:18:51] } 9... b6 { [%eval 0.05] [%clk 1:07:44] } 10. Bf4 { [%eval 0.16] [%clk 1:17:53] } 10... Bb7 { [%eval 0.36] [%clk 1:08:03] } 11. Ne5 { [%eval 0.16] [%clk 1:18:02] } 11... Nh5 { [%eval 0.15] [%clk 1:07:55] } 12. Bd2 { [%eval 0.0] [%clk 1:18:16] } 12... Nhf6 { [%eval 0.08] [%clk 1:08:14] } 13. cxd5 { [%eval 0.22] [%clk 1:18:06] } 13... cxd5 { [%eval 0.14] [%clk 1:08:36] } 14. Nc6 { [%eval 0.24] [%clk 1:18:28] } 14... Bxc6 { [%eval 0.26] [%clk 1:09:00] } 15. Qxc6 { [%eval 0.19] [%clk 1:18:54] } 15... a6 { [%eval 0.14] [%clk 1:09:24] } 16. Qc2 { [%eval 0.17] [%clk 1:13:58] } 16... Qc8 { [%eval 0.16] [%clk 1:09:40] } 17. Qd3 { [%eval 0.2] [%clk 1:03:25] } 17... b5 { [%eval -0.02] [%clk 1:09:49] } 18. Rc1 { [%eval 0.16] [%clk 1:02:02] } 18... Qb7 { [%eval 0.06] [%clk 1:10:03] } 19. Nc3 { [%eval 0.02] [%clk 0:56:38] } 19... b4 { [%eval 0.04] [%clk 1:05:21] } 20. Na4 { [%eval 0.08] [%clk 0:53:51] } 20... Qb5?! { [%eval 1.09] } { Inaccuracy. Rfc8 was best. } { [%clk 1:05:23] } 21. Nc5 { [%eval 0.79] [%clk 0:48:57] } 21... Nxc5?! { [%eval 1.34] } { Inaccuracy. Qxd3 was best. } { [%clk 1:00:48] } 22. dxc5?! { [%eval 0.56] } { Inaccuracy. Qxb5 was best. } { [%clk 0:41:13] } 22... Rfb8 { [%eval 0.41] [%clk 0:59:18] } 23. c6?! { [%eval -0.17] } { Inaccuracy. a4 was best. } { [%clk 0:31:57] } 23... Rc8 { [%eval -0.11] [%clk 0:57:02] } 24. Rc2 { [%eval -0.22] [%clk 0:24:42] } 24... Ng4?? { [%eval 1.32] } { Blunder. Qxd3 was best. } { [%clk 0:56:05] } 25. Qxb5 { [%eval 0.83] [%clk 0:18:57] } 25... axb5 { [%eval 0.5] [%clk 0:56:28] } 26. e4? { [%eval -0.92] } { Mistake. b3 was best. } { [%clk 0:19:18] } 26... b3 { [%eval -0.79] [%clk 0:52:35] } 27. Rcc1 { [%eval -0.19] [%clk 0:19:37] } 27... dxe4 { [%eval -0.46] [%clk 0:50:56] } 28. axb3 { [%eval -0.7] [%clk 0:17:30] } 28... Rxa1 { [%eval -0.38] [%clk 0:51:05] } 29. Rxa1 { [%eval -0.59] [%clk 0:17:58] } 29... f5 { [%eval -0.76] [%clk 0:43:57] } 30. Rc1 { [%eval -0.9] [%clk 0:10:55] } 30... Ne5 { [%eval -0.83] [%clk 0:44:03] } 31. c7 { [%eval -0.79] [%clk 0:11:02] } 31... Bd6 { [%eval -0.41] [%clk 0:44:28] } 32. Ba5 { [%eval -0.43] [%clk 0:10:31] } 32... Kf7 { [%eval -0.4] [%clk 0:44:52] } 33. Bf1 { [%eval -0.45] [%clk 0:10:27] } 33... Nf3+ { [%eval -0.42] [%clk 0:45:17] } 34. Kg2 { [%eval -0.37] [%clk 0:10:47] } 34... Nd4 { [%eval -0.33] [%clk 0:45:31] } 35. Bb6 { [%eval -0.39] [%clk 0:09:20] } 35... e5 { [%eval -0.4] [%clk 0:45:16] } 36. f4 { [%eval -0.57] [%clk 0:03:01] } 36... exf3+ { [%eval -0.53] [%clk 0:43:13] } 37. Kf2 { [%eval -0.45] [%clk 0:03:30] } 37... Ne6 { [%eval -0.32] [%clk 0:40:48] } 38. Kxf3 { [%eval -0.45] [%clk 0:03:57] } 38... Bxc7 { [%eval -0.54] [%clk 0:40:03] } 39. b4 { [%eval -0.87] [%clk 0:03:52] } 39... g5 { [%eval -0.83] [%clk 0:37:15] } 40. Kg2 { [%eval -0.75] [%clk 0:32:21] } 40... h5?! { [%eval -0.18] } { Inaccuracy. e4 was best. } { [%clk 1:01:26] } 41. Rc6 { [%eval -0.15] [%clk 0:24:19] } 41... g4 { [%eval 0.0] [%clk 0:52:50] } 42. Bc5?! { [%eval -0.82] } { Inaccuracy. Ba5 was best. } { [%clk 0:11:53] } 42... Rb8 { [%eval -0.75] [%clk 0:51:27] } 43. Bd3 { [%eval -0.58] [%clk 0:10:47] } 43... e4 { [%eval -0.72] [%clk 0:51:49] } 44. Bc2 { [%eval -0.76] [%clk 0:11:02] } 44... Be5 { [%eval -0.37] [%clk 0:52:00] } 45. Bb3 { [%eval -0.47] [%clk 0:11:11] } 45... Re8 { [%eval -0.62] [%clk 0:52:24] } 46. Rb6 { [%eval -1.05] [%clk 0:10:29] } 46... Kf6 { [%eval -0.59] [%clk 0:52:10] } 47. Be3 { [%eval 0.0] [%clk 0:10:22] } 47... h4 { [%eval 0.0] [%clk 0:51:52] } 48. Rxb5?? { [%eval -2.3] } { Blunder. Bd5 was best. } { [%clk 0:09:20] } 48... h3+ { [%eval -2.29] [%clk 0:51:28] } 49. Kf2?! { [%eval -3.1] } { Inaccuracy. Kg1 was best. } { [%clk 0:09:08] } 49... f4 { [%eval -2.79] [%clk 0:48:30] } 50. gxf4 { [%eval -2.82] [%clk 0:06:52] } 50... Nxf4 { [%eval -3.36] [%clk 0:48:48] } 51. Rb7 { [%eval -4.01] [%clk 0:03:20] } 51... Ne6 { [%eval -3.76] [%clk 0:39:41] } 52. Kg1 { [%eval -3.37] [%clk 0:03:48] } 52... Bd4 { [%eval -3.37] [%clk 0:39:55] } 53. Kf2 { [%eval -3.34] [%clk 0:04:15] } 53... g3+ { [%eval -3.29] [%clk 0:39:12] } 54. hxg3 { [%eval -3.45] [%clk 0:04:18] } 54... Rh8 { [%eval -3.32] [%clk 0:35:56] } 55. Bc2 { [%eval -3.23] [%clk 0:00:52] } 55... Bxe3+ { [%eval -3.23] [%clk 0:35:13] } 56. Kxe3 { [%eval -3.21] [%clk 0:01:19] } 56... Ng5 { [%eval -3.3] [%clk 0:35:35] } 57. Rb6+ { [%eval -3.21] [%clk 0:00:52] } 57... Ke7 { [%eval -3.27] [%clk 0:35:54] } 58. Kd4 *