Event: Round 4: Brandon Jacobson - Aaron Grabinsky
Date: 2022-08-15
White: Brandon Jacobson
WhiteTitle: GM
Black: Aaron Grabinsky
BlackTitle: IM
Result: 1/2-1/2
ECO: E41
Opening: Nimzo-Indian Defense: Rubinstein System
Variant: Standard

1. d4 { [%eval 0.0] [%clk 1:35:39] } 1... Nf6 { [%eval 0.23] [%clk 1:40:36] } 2. c4 { [%eval 0.34] [%clk 1:35:59] } 2... e6 { [%eval 0.23] [%clk 1:41:02] } 3. Nc3 { [%eval 0.05] [%clk 1:36:08] } 3... Bb4 { [%eval 0.25] [%clk 1:41:27] } 4. e3 { [%eval 0.0] [%clk 1:36:32] } 4... c5 { [%eval 0.25] [%clk 1:41:47] } 5. Bd3 { [%eval 0.27] [%clk 1:36:33] } 5... Nc6 { [%eval 0.27] [%clk 1:41:17] } 6. dxc5 { [%eval 0.0] [%clk 1:30:00] } 6... O-O { [%eval 0.45] [%clk 1:39:04] } 7. Nf3 { [%eval 0.17] [%clk 1:30:22] } 7... Bxc5 { [%eval 0.44] [%clk 1:38:47] } 8. O-O { [%eval 0.57] [%clk 1:30:41] } 8... d5 { [%eval 0.73] [%clk 1:35:35] } 9. cxd5 { [%eval 0.5] [%clk 1:30:55] } 9... exd5 { [%eval 0.75] [%clk 1:34:48] } 10. h3 { [%eval 0.73] [%clk 1:31:11] } 10... Re8 { [%eval 0.43] [%clk 1:33:09] } 11. b3 { [%eval 0.65] [%clk 1:30:52] } 11... a6 { [%eval 0.92] [%clk 1:29:04] } 12. Bb2 { [%eval 0.97] [%clk 1:31:03] } 12... Qe7 { [%eval 1.0] [%clk 1:25:10] } 13. Rc1 { [%eval 0.92] [%clk 1:19:57] } 13... Be6 { [%eval 0.97] [%clk 1:22:29] } 14. Ne2 { [%eval 0.87] [%clk 1:15:04] } 14... Bd6 { [%eval 1.05] [%clk 1:21:30] } 15. Nf4 { [%eval 1.01] [%clk 1:10:48] } 15... h6 { [%eval 0.96] [%clk 1:15:45] } 16. Re1 { [%eval 0.85] [%clk 1:03:50] } 16... Rac8 { [%eval 0.87] [%clk 1:11:56] } 17. Bb1 { [%eval 0.87] [%clk 1:01:46] } 17... Rcd8 { [%eval 0.94] [%clk 0:59:55] } 18. Re2 { [%eval 0.92] [%clk 0:47:51] } 18... Ba3 { [%eval 1.08] [%clk 0:51:14] } 19. Nd4 { [%eval 0.83] [%clk 0:44:26] } 19... Bd7 { [%eval 0.85] [%clk 0:47:00] } 20. Bxa3 { [%eval 0.75] [%clk 0:41:59] } 20... Qxa3 { [%eval 0.88] [%clk 0:47:20] } 21. Nxc6 { [%eval 0.62] [%clk 0:25:08] } 21... bxc6 { [%eval 0.69] [%clk 0:39:07] } 22. Qd2 { [%eval 0.48] [%clk 0:18:40] } 22... c5 { [%eval 0.54] [%clk 0:33:27] } 23. Qb2 { [%eval 0.72] [%clk 0:17:19] } 23... Qa5 { [%eval 0.45] [%clk 0:30:38] } 24. Rd2 { [%eval 0.61] [%clk 0:17:05] } 24... Bc8 { [%eval 0.7] [%clk 0:25:58] } 25. Rdc2 { [%eval 0.62] [%clk 0:07:31] } 25... c4 { [%eval 0.38] [%clk 0:20:02] } 26. Rd2 { [%eval 0.84] [%clk 0:07:33] } 26... cxb3 { [%eval 0.88] [%clk 0:16:47] } 27. axb3 { [%eval 0.98] [%clk 0:08:01] } 27... Bb7 { [%eval 1.05] [%clk 0:16:38] } 28. Rd4 { [%eval 1.1] [%clk 0:06:12] } 28... Rc8 { [%eval 1.21] [%clk 0:16:12] } 29. Rcd1 { [%eval 1.4] [%clk 0:06:39] } 29... Qb6 { [%eval 1.37] [%clk 0:15:10] } 30. Bd3 { [%eval 1.07] [%clk 0:06:09] } 30... Rb8 { [%eval 1.05] [%clk 0:14:05] } 31. Ra1 { [%eval 1.07] [%clk 0:04:14] } 31... Ra8 { [%eval 1.14] [%clk 0:09:54] } 32. Rda4 { [%eval 1.08] [%clk 0:02:58] } 32... Ne4 { [%eval 1.08] [%clk 0:08:41] } 33. Qd4 { [%eval 1.0] [%clk 0:02:36] } 33... Qd6?! { [%eval 1.58] } { Inaccuracy. Qxd4 was best. } { [%clk 0:06:51] } 34. Ra5 { [%eval 1.3] [%clk 0:02:42] } 34... Red8 { [%eval 1.45] [%clk 0:05:36] } 35. b4 { [%eval 1.4] [%clk 0:01:07] } 35... Nd2?! { [%eval 2.08] } { Inaccuracy. Nf6 was best. } { [%clk 0:04:03] } 36. Nh5 { [%eval 1.54] [%clk 0:00:48] } 36... Qf8 { [%eval 1.69] [%clk 0:03:22] } 37. Bc2 { [%eval 1.56] [%clk 0:01:14] } 37... Nc4?! { [%eval 2.78] } { Inaccuracy. Ne4 was best. } { [%clk 0:02:54] } 38. Rc5 { [%eval 2.98] [%clk 0:01:42] } 38... Rac8 { [%eval 2.97] [%clk 0:02:40] } 39. Qd3 { [%eval 2.35] [%clk 0:00:55] } 39... g6 { [%eval 2.23] [%clk 0:02:08] } 40. Rxc8 { [%eval 2.17] [%clk 0:00:44] } 40... Bxc8 { [%eval 2.31] [%clk 0:02:11] } 41. Nf6+ { [%eval 2.0] [%clk 0:00:56] } 41... Kh8 { [%eval 2.06] [%clk 0:02:36] } 42. Nxd5 { [%eval 1.81] [%clk 0:00:49] } 42... Qg7 { [%eval 1.61] [%clk 0:02:34] } 43. Re1?! { [%eval 1.02] } { Inaccuracy. Rc1 was best. } { [%clk 0:00:43] } 43... Nb2? { [%eval 2.62] } { Mistake. Ne5 was best. } { [%clk 0:01:08] } 44. Qc3? { [%eval 0.84] } { Mistake. Qb3 was best. } { [%clk 0:00:36] } 44... Qxc3 { [%eval 0.87] [%clk 0:00:59] } 45. Nxc3 { [%eval 0.76] [%clk 0:01:04] } 45... Be6 { [%eval 0.92] [%clk 0:01:06] } 46. Rb1 { [%eval 0.83] [%clk 0:00:52] } 46... Nc4 { [%eval 0.93] [%clk 0:01:22] } 47. Ra1 { [%eval 0.72] [%clk 0:01:09] } 47... Rc8 { [%eval 0.67] [%clk 0:01:01] } 48. Bb3 { [%eval 0.68] [%clk 0:00:45] } 48... Rb8 { [%eval 1.01] [%clk 0:00:51] } 49. Rxa6 { [%eval 1.15] [%clk 0:00:44] } 49... Rxb4 { [%eval 0.95] [%clk 0:01:14] } 50. Ba2 { [%eval 0.99] [%clk 0:00:50] } 50... Kg7 { [%eval 1.06] [%clk 0:01:14] } 51. g4 { [%eval 0.87] [%clk 0:00:34] } 51... Rb2 { [%eval 0.9] [%clk 0:00:45] } 52. Bxc4 { [%eval 0.92] [%clk 0:00:43] } 52... Bxc4 { [%eval 0.8] [%clk 0:01:11] } 53. Rc6 { [%eval 0.64] [%clk 0:01:05] } 53... Be6 { [%eval 0.75] [%clk 0:01:28] } 54. Rd6 { [%eval 0.76] [%clk 0:00:59] } 54... Rc2 { [%eval 1.03] [%clk 0:01:35] } 55. Nb5 { [%eval 0.93] [%clk 0:01:21] } 55... Rc1+ { [%eval 0.97] [%clk 0:01:13] } 56. Kh2 { [%eval 0.88] [%clk 0:01:43] } 56... Bc8 { [%eval 1.18] [%clk 0:01:23] } 57. Nd4 { [%eval 1.3] [%clk 0:01:35] } 57... Bb7 { [%eval 1.66] [%clk 0:01:46] } 58. Rd7 { [%eval 1.24] [%clk 0:01:39] } 58... Ba8 { [%eval 1.78] [%clk 0:00:40] } 59. f3 { [%eval 1.27] } 59... Kf6 { [%eval 1.64] [%clk 0:00:36] } 60. Kg3 { [%eval 1.82] [%clk 0:00:39] } 60... Rg1+ { [%eval 1.5] [%clk 0:01:00] } 61. Kf2 { [%eval 1.74] [%clk 0:01:07] } 61... Rh1 { [%eval 1.48] [%clk 0:01:12] } 62. e4 { [%eval 1.55] [%clk 0:01:04] } 62... Ra1 { [%eval 1.71] [%clk 0:01:08] } 63. h4 { [%eval 1.35] [%clk 0:01:02] } 63... Ra3? { [%eval 3.11] } { Mistake. Ra2+ was best. } { [%clk 0:01:03] } 64. Rc7?! { [%eval 2.09] } { Inaccuracy. h5 was best. } { [%clk 0:00:35] } 64... Ke5 { [%eval 2.03] [%clk 0:00:36] } 65. Ne2 { [%eval 2.22] [%clk 0:00:34] } 65... Kf6 { [%eval 2.17] [%clk 0:00:41] } 66. Nd4 { [%eval 2.0] [%clk 0:00:35] } 66... Ke5 { [%eval 2.33] [%clk 0:01:07] } 67. Ne2 { [%eval 2.19] [%clk 0:00:44] } 67... Kf6 { [%eval 2.05] [%clk 0:01:34] } 68. g5+ { [%eval 1.58] [%clk 0:01:10] } 68... hxg5 { [%eval 1.46] [%clk 0:01:59] } 69. hxg5+ { [%eval 1.51] [%clk 0:01:37] } 69... Kxg5 { [%eval 1.46] [%clk 0:01:46] } 70. Rxf7 { [%eval 1.36] [%clk 0:02:04] } 70... Ra2 { [%eval 1.42] [%clk 0:01:41] } 71. Ke3 { [%eval 1.51] [%clk 0:02:31] } 71... Ra3+ { [%eval 1.41] [%clk 0:01:54] } 72. Kd4 { [%eval 1.52] [%clk 0:02:58] } 72... Ra4+ { [%eval 1.26] [%clk 0:01:03] } 73. Kd3 { [%eval 1.32] [%clk 0:03:26] } 73... Bc6?! { [%eval 1.94] } { Inaccuracy. Kh6 was best. } { [%clk 0:00:52] } 74. Nc3 { [%eval 1.36] [%clk 0:02:47] } 74... Ra8 { [%eval 1.5] [%clk 0:01:13] } 75. Kd4 { [%eval 1.44] [%clk 0:02:58] } 75... Rd8+ { [%eval 2.0] [%clk 0:01:12] } 76. Nd5 { [%eval 2.55] [%clk 0:03:23] } 76... Ba4 { [%eval 2.65] [%clk 0:00:59] } 77. Ke5? { [%eval 1.34] } { Mistake. f4+ was best. } { [%clk 0:03:03] } 77... Bb3 { [%eval 1.73] [%clk 0:00:52] } 78. Re7?! { [%eval 0.81] } { Inaccuracy. Rb7 was best. } { [%clk 0:03:12] } 78... Rf8?! { [%eval 1.78] } { Inaccuracy. Kh4 was best. } { [%clk 0:00:52] } 79. f4+ { [%eval 1.39] [%clk 0:03:21] } 79... Kg4 { [%eval 1.68] [%clk 0:00:43] } 80. Nf6+ { [%eval 2.31] [%clk 0:01:09] } 80... Kf3 { [%eval 2.45] [%clk 0:01:09] } 81. Rb7?? { [%eval 0.0] } { Blunder. Rc7 was best. } { [%clk 0:01:35] } 81... Bc2 { [%eval 0.07] [%clk 0:01:04] } 82. Rc7 { [%eval 0.08] [%clk 0:01:45] } 82... Bd3?! { [%eval 0.72] } { Inaccuracy. Bxe4 was best. } { [%clk 0:01:07] } 83. Rc3 { [%eval 0.29] [%clk 0:01:37] } 83... Ke2 { [%eval 0.16] [%clk 0:01:20] } 84. Rc6 { [%eval 0.19] [%clk 0:01:04] } 84... Kf3 { [%eval 0.37] [%clk 0:01:32] } 85. Rc3 { [%eval 0.43] [%clk 0:00:37] } 85... Ke2 { [%eval 0.23] [%clk 0:01:59] } 86. Ra3 { [%eval 0.13] [%clk 0:00:35] } 86... Rb8 { [%eval 0.43] [%clk 0:01:59] } 87. Kd4 { [%eval 0.47] [%clk 0:00:35] } 87... Rb4+ { [%eval 0.39] [%clk 0:00:47] } 88. Ke5 { [%eval 0.69] [%clk 0:00:55] } 88... Rb8 { [%eval 0.76] [%clk 0:01:14] } 89. Kd5 { [%eval 0.22] [%clk 0:00:35] } 89... Rd8+ { [%eval 0.25] [%clk 0:01:00] } 90. Ke6 { [%eval 0.37] [%clk 0:00:34] } 90... Kf3 { [%eval 0.49] [%clk 0:00:33] } 91. f5 { [%eval 0.05] [%clk 0:00:32] } 91... gxf5 { [%eval 0.06] [%clk 0:00:48] } 92. exf5 { [%eval 0.03] [%clk 0:00:40] } 92... Kf4 { [%eval 0.03] [%clk 0:00:46] } 93. Ra4+ { [%eval 0.04] [%clk 0:00:53] } 93... Kf3 { [%eval 0.0] [%clk 0:01:08] } 94. Ra3 { [%eval 0.04] [%clk 0:00:42] } 94... Kf4 { [%eval 0.0] [%clk 0:01:35] } 95. Nd5+ { [%eval 0.05] [%clk 0:00:50] } 95... Rxd5 { [%eval 0.0] [%clk 0:01:40] } 96. Kxd5 { [%eval 0.04] [%clk 0:01:12] } 96... Bxf5 { [%eval 0.0] [%clk 0:02:03] } 97. Ra4+ { [%eval 0.03] [%clk 0:01:38] } 97... Kg5 { [%eval 0.0] [%clk 0:02:24] } 98. Ke5 { [%eval 0.0] [%clk 0:02:01] } 98... Bd3 { [%eval 0.0] [%clk 0:02:36] } 99. Ra3 { [%eval 0.0] [%clk 0:02:21] } 99... Bc2 { [%eval 0.0] [%clk 0:02:59] } 100. Rg3+ { [%eval 0.0] [%clk 0:02:46] } 100... Kh6 { [%eval 0.01] [%clk 0:03:21] } 101. Kf6 { [%eval 0.03] [%clk 0:03:09] } 101... Kh7 { [%eval 0.02] [%clk 0:03:33] } 102. Rc3 { [%eval 0.09] [%clk 0:03:04] } 102... Bb1 { [%eval 0.15] [%clk 0:03:50] } 103. Rc7+ { [%eval 0.0] [%clk 0:02:46] } 103... Kh8 { [%eval 0.06] [%clk 0:04:05] } 104. Rb7 { [%eval 0.11] [%clk 0:02:29] } 104... Bc2 { [%eval 0.03] [%clk 0:04:18] } 105. Kf7 { [%eval 0.09] [%clk 0:02:46] } 105... Bd3 { [%eval 0.0] [%clk 0:04:26] } 1/2-1/2