Event: Round 2: Steven Zierk - Sean Vibbert
Date: 2021-06-17
White: Steven Zierk
WhiteTitle: GM
Black: Sean Vibbert
BlackTitle: FM
Result: 1/2-1/2
ECO: E14
Opening: Queen's Indian Defense: Spassky System
Variant: Standard

1. d4 { [%eval 0.0] [%clk 1:30:56] } 1... Nf6 { [%eval 0.19] [%clk 1:24:15] } 2. c4 { [%eval 0.11] [%clk 1:31:07] } 2... e6 { [%eval 0.39] [%clk 1:24:31] } 3. Nf3 { [%eval 0.0] [%clk 1:31:07] } 3... b6 { [%eval 0.3] [%clk 1:24:21] } 4. e3 { [%eval 0.08] [%clk 1:30:18] } 4... Bb7 { [%eval 0.08] [%clk 1:22:21] } 5. Nc3 { [%eval 0.0] [%clk 1:30:14] } 5... Bb4 { [%eval 0.0] [%clk 1:22:38] } 6. Bd2 { [%eval 0.0] [%clk 1:28:40] } 6... Bxc3 { [%eval 0.16] [%clk 1:21:04] } 7. Bxc3 { [%eval 0.05] [%clk 1:29:04] } 7... Ne4 { [%eval 0.12] [%clk 1:21:24] } 8. Rc1 { [%eval 0.2] [%clk 1:28:14] } 8... d6 { [%eval 0.12] [%clk 1:20:02] } 9. Be2 { [%eval 0.16] [%clk 1:23:03] } 9... Nd7 { [%eval 0.06] [%clk 1:18:00] } 10. O-O { [%eval 0.12] [%clk 1:14:36] } 10... Nxc3 { [%eval 0.1] [%clk 1:18:16] } 11. Rxc3 { [%eval 0.18] [%clk 1:14:58] } 11... O-O { [%eval 0.09] [%clk 1:18:19] } 12. b4 { [%eval -0.13] [%clk 1:08:16] } 12... a5 { [%eval -0.08] [%clk 1:16:47] } 13. a3 { [%eval -0.07] [%clk 1:05:19] } 13... axb4 { [%eval -0.12] [%clk 1:16:17] } 14. axb4 { [%eval -0.04] [%clk 1:02:33] } 14... Ra2 { [%eval 0.0] [%clk 1:16:20] } 15. c5 { [%eval -0.46] [%clk 0:54:35] } 15... Qa8 { [%eval -0.27] [%clk 1:14:58] } 16. Bc4 { [%eval -0.4] } 16... Ra3 { [%eval -0.66] [%clk 1:10:56] } 17. Rc1 { [%eval -0.79] [%clk 0:37:32] } 17... dxc5 { [%eval -1.0] [%clk 1:07:22] } 18. bxc5 { [%eval -1.15] [%clk 0:33:28] } 18... bxc5 { [%eval -1.23] [%clk 1:06:58] } 19. Bb5 { [%eval -1.54] [%clk 0:31:37] } 19... c6?! { [%eval -0.71] } { Inaccuracy. Nf6 was best. } { [%clk 1:05:00] } 20. Be2 { [%eval -0.88] [%clk 0:30:06] } 20... cxd4 { [%eval -0.37] [%clk 1:02:17] } 21. Qxd4 { [%eval -0.61] [%clk 0:29:04] } 21... Nf6 { [%eval -0.4] [%clk 1:01:55] } 22. Rfd1?! { [%eval -1.0] } { Inaccuracy. Ra1 was best. } { [%clk 0:28:20] } 22... Ra2 { [%eval -0.95] [%clk 0:57:47] } 23. Ra1 { [%eval -1.32] [%clk 0:20:20] } 23... c5 { [%eval -1.26] [%clk 0:55:13] } 24. Qe5 { [%eval -1.44] [%clk 0:20:06] } 24... Bd5 { [%eval -1.03] [%clk 0:53:52] } 25. Ne1? { [%eval -2.46] } { Mistake. Nd2 was best. } { [%clk 0:19:11] } 25... Qa3?! { [%eval -1.79] } { Inaccuracy. Ne4 was best. } { [%clk 0:47:43] } 26. Bf3 { [%eval -1.87] [%clk 0:14:03] } 26... h6?! { [%eval -1.2] } { Inaccuracy. Rxa1 was best. } { [%clk 0:46:36] } 27. e4 { [%eval -1.05] [%clk 0:12:34] } 27... Bb3 { [%eval -1.05] [%clk 0:45:20] } 28. Rxa2 { [%eval -1.54] [%clk 0:12:41] } 28... Bxa2 { [%eval -1.18] [%clk 0:43:23] } 29. Nc2 { [%eval -1.11] [%clk 0:12:20] } 29... Qa4 { [%eval -0.69] [%clk 0:39:48] } 30. Qxc5 { [%eval -0.67] [%clk 0:11:38] } 30... Nxe4 { [%eval -0.68] [%clk 0:35:30] } 31. Bxe4 { [%eval -0.62] [%clk 0:11:05] } 31... Qxe4 { [%eval -0.6] [%clk 0:35:40] } 32. Ne3 { [%eval -0.6] [%clk 0:10:07] } 32... e5 { [%eval -0.47] [%clk 0:30:46] } 33. f3 { [%eval -0.43] [%clk 0:07:22] } 33... Qf4 { [%eval -0.32] [%clk 0:29:57] } 34. Ng4 { [%eval -0.67] [%clk 0:04:36] } 34... f6 { [%eval -0.75] [%clk 0:23:05] } 35. Qe7 { [%eval -0.57] [%clk 0:04:06] } 35... Bf7 { [%eval -0.78] [%clk 0:19:53] } 36. Nf2 { [%eval -0.77] [%clk 0:03:12] } 36... Rc8 { [%eval -0.57] [%clk 0:18:35] } 37. Rd8+ { [%eval -0.62] [%clk 0:02:27] } 37... Rxd8 { [%eval -0.62] [%clk 0:18:57] } 38. Qxd8+ { [%eval -0.58] [%clk 0:02:53] } 38... Kh7 { [%eval -0.6] [%clk 0:19:21] } 39. Qd3+ { [%eval -0.6] [%clk 0:01:41] } 39... Bg6 { [%eval -0.59] [%clk 0:19:39] } 40. Qc3 { [%eval -0.58] [%clk 0:01:45] } 40... Bf5 { [%eval -0.52] [%clk 0:18:35] } 41. g3 { [%eval -0.63] [%clk 0:28:23] } 41... Qa4 { [%eval -0.65] [%clk 0:46:15] } 42. h4 { [%eval -0.54] [%clk 0:27:37] } 42... Bg6 { [%eval -0.52] [%clk 0:43:18] } 43. Kg2 { [%eval -0.59] [%clk 0:26:53] } 43... Qa2 { [%eval -0.52] [%clk 0:43:36] } 44. Qe3 { [%eval -0.54] [%clk 0:25:55] } 44... Qd5 { [%eval -0.61] [%clk 0:43:21] } 45. Ng4 { [%eval -0.69] [%clk 0:24:34] } 45... Kg8 { [%eval -0.47] [%clk 0:42:24] } 46. Nf2 { [%eval -0.48] [%clk 0:24:01] } 46... Be8 { [%eval -0.42] [%clk 0:42:02] } 47. Qd3 { [%eval -0.68] [%clk 0:23:36] } 47... Bc6 { [%eval -0.49] [%clk 0:38:05] } 48. Qxd5+ { [%eval -0.5] [%clk 0:19:47] } 48... Bxd5 { [%eval -0.49] [%clk 0:38:28] } 49. Ng4 { [%eval -0.51] [%clk 0:18:52] } 49... Kf7 { [%eval -0.52] [%clk 0:38:29] } 50. Kf2 { [%eval -0.44] [%clk 0:18:20] } 50... Ke6 { [%eval -0.47] [%clk 0:38:28] } 51. Ne3 { [%eval -0.5] [%clk 0:17:35] } 51... Bc6 { [%eval -0.49] [%clk 0:37:16] } 52. f4 { [%eval -0.37] [%clk 0:16:56] } 52... Be4 { [%eval -0.51] [%clk 0:37:17] } 53. fxe5 { [%eval -0.39] [%clk 0:16:16] } 53... Kxe5 { [%eval -0.37] [%clk 0:37:07] } 54. Ng4+ { [%eval -0.3] [%clk 0:15:47] } 54... Kd4 { [%eval -0.29] [%clk 0:37:17] } 55. Ne3 { [%eval -0.22] [%clk 0:16:11] } 55... Kd3 { [%eval -0.29] [%clk 0:36:31] } 56. Ng4 { [%eval -0.33] [%clk 0:15:47] } 56... Bb7 { [%eval -0.34] [%clk 0:36:34] } 57. Ne3 { [%eval -0.26] [%clk 0:15:46] } 57... Ke4 { [%eval -0.33] [%clk 0:36:42] } 58. Ng2 { [%eval -0.28] [%clk 0:15:43] } 58... Bd5 { [%eval -0.31] [%clk 0:36:32] } 59. Nf4 { [%eval -0.3] [%clk 0:14:01] } 59... Bf7 { [%eval -0.32] [%clk 0:36:54] } 60. Ng2 { [%eval -0.31] [%clk 0:14:28] } 60... Bh5 { [%eval -0.26] [%clk 0:36:29] } 61. Nf4 { [%eval -0.32] [%clk 0:14:49] } 61... Bf7 { [%eval -0.24] [%clk 0:34:51] } 62. Ng2 { [%eval -0.62] [%clk 0:15:15] } 62... Be8 { [%eval -0.28] [%clk 0:35:11] } 63. Nf4 { [%eval -0.3] [%clk 0:15:23] } 63... Kf5 { [%eval -0.44] [%clk 0:35:30] } 64. Nd5 { [%eval -0.46] [%clk 0:15:18] } 64... Ke5 { [%eval -0.31] [%clk 0:33:03] } 65. Nf4 { [%eval -0.41] [%clk 0:15:42] } 65... g5 { [%eval -0.23] [%clk 0:32:20] } 66. hxg5 { [%eval -0.09] [%clk 0:16:03] } 66... fxg5 { [%eval -0.12] [%clk 0:32:42] } 67. Ng2 { [%eval -0.22] [%clk 0:16:28] } 67... h5 { [%eval 0.0] [%clk 0:32:46] } 68. Ne3 { [%eval -0.15] [%clk 0:16:44] } 68... Bf7 { [%eval -0.07] [%clk 0:32:58] } 69. Ng2 { [%eval -0.11] [%clk 0:17:07] } 69... Bd5 { [%eval -0.09] [%clk 0:32:52] } 70. Ne3 { [%eval -0.15] [%clk 0:17:31] } 70... Be4 { [%eval -0.19] [%clk 0:32:54] } 71. Nc4+ { [%eval -0.15] [%clk 0:17:57] } 71... Kd5 { [%eval -0.2] [%clk 0:32:54] } 72. Ne3+ { [%eval -0.16] [%clk 0:18:21] } 72... Kd4 { [%eval -0.07] [%clk 0:33:18] } 73. Nf1 { [%eval -0.04] [%clk 0:18:45] } 73... Kd3 { [%eval -0.17] [%clk 0:32:56] } 74. Ne3 { [%eval -0.15] [%clk 0:19:10] } 74... h4 { [%eval 0.0] [%clk 0:33:09] } 75. gxh4 { [%eval 0.0] [%clk 0:19:36] } 75... gxh4 { [%eval 0.0] [%clk 0:33:34] } 76. Ng2 { [%eval 0.0] [%clk 0:19:59] } 76... h3 { [%eval 0.0] [%clk 0:33:45] } 77. Nf4+ { [%eval 0.0] [%clk 0:20:26] } 77... Kd4 { [%eval 0.0] [%clk 0:34:08] } 1/2-1/2