Event: Round 2: Ray Kaufman - Nikola Mitkov
Site: https://lichess.org/study/1Saj8xDX/9d1I1LKX
Date: 2023-01-07
White: Ray Kaufman
WhiteTitle: IM
Black: Nikola Mitkov
BlackTitle: GM
Result: 1/2-1/2
ECO: D31
Opening: Queen's Gambit Declined: Queen's Knight Variation
Variant: Standard

1. d4 { [%eval 0.0] [%clk 1:30:51] } 1... d5 { [%eval 0.27] [%clk 1:30:58] } 2. c4 { [%eval 0.29] [%clk 1:30:56] } 2... e6 { [%eval 0.3] [%clk 1:31:24] } 3. Nc3 { [%eval 0.39] [%clk 1:29:02] } 3... Bb4 { [%eval 0.32] [%clk 1:31:32] } 4. Qa4+ { [%eval 0.29] [%clk 1:28:49] } 4... Nc6 { [%eval 0.4] [%clk 1:31:58] } 5. e3 { [%eval 0.3] [%clk 1:28:36] } 5... Ne7 { [%eval 0.74] [%clk 1:32:03] } 6. Bd2 { [%eval 0.65] [%clk 1:27:08] } 6... O-O { [%eval 0.91] [%clk 1:31:42] } 7. Nf3 { [%eval 0.7] [%clk 1:27:32] } 7... a5 { [%eval 0.65] [%clk 1:32:07] } 8. a3 { [%eval 0.48] [%clk 1:26:28] } 8... Bxc3 { [%eval 0.49] [%clk 1:32:29] } 9. Bxc3 { [%eval 0.43] [%clk 1:25:36] } 9... b6 { [%eval 0.47] [%clk 1:32:38] } 10. cxd5 { [%eval 0.59] [%clk 1:21:45] } 10... exd5 { [%eval 0.5] [%clk 1:32:41] } 11. Bd3 { [%eval 0.55] [%clk 1:19:04] } 11... Ba6 { [%eval 0.69] [%clk 1:32:32] } 12. Bxa6 { [%eval 0.55] [%clk 1:18:38] } 12... Rxa6 { [%eval 0.29] [%clk 1:32:58] } 13. b4 { [%eval 0.6] [%clk 1:18:55] } 13... Ra8 { [%eval 0.63] [%clk 1:24:01] } 14. b5 { [%eval 0.56] [%clk 1:19:01] } 14... Na7 { [%eval 0.72] [%clk 1:24:25] } 15. Qb3 { [%eval 0.64] [%clk 1:16:00] } 15... Nac8 { [%eval 0.73] [%clk 1:21:28] } 16. a4 { [%eval 0.59] [%clk 1:15:38] } 16... Nd6 { [%eval 0.68] [%clk 1:21:40] } 17. O-O { [%eval 0.58] [%clk 1:12:11] } 17... Nc4 { [%eval 0.96] [%clk 1:03:10] } 18. Nd2 { [%eval 0.74] [%clk 1:10:45] } 18... Nxd2 { [%eval 0.69] [%clk 1:03:23] } 19. Bxd2 { [%eval 0.72] [%clk 1:11:12] } 19... Ra7 { [%eval 0.99] [%clk 0:52:31] } 20. Bc1 { [%eval 0.66] [%clk 1:06:04] } 20... Re8 { [%eval 0.53] [%clk 0:52:32] } 21. Ba3 { [%eval 0.51] [%clk 1:06:10] } 21... Ng6 { [%eval 0.59] [%clk 0:51:30] } 22. f3 { [%eval 0.49] [%clk 1:00:30] } 22... Re6 { [%eval 0.73] [%clk 0:48:07] } 23. Rae1 { [%eval 0.83] [%clk 0:52:05] } 23... Re8 { [%eval 0.83] [%clk 0:28:24] } 24. Kh1 { [%eval 0.86] [%clk 0:50:43] } 24... Ra8 { [%eval 0.75] [%clk 0:25:35] } 25. e4 { [%eval 0.73] [%clk 0:47:19] } 25... Nf4?! { [%eval 1.39] } { Inaccuracy. Rc8 was best. } { [%clk 0:19:11] } 26. g3 { [%eval 1.4] [%clk 0:45:35] } 26... Ne6 { [%eval 1.41] [%clk 0:18:06] } 27. exd5 { [%eval 1.36] [%clk 0:45:29] } 27... Nf8 { [%eval 1.3] [%clk 0:08:52] } 28. Re4 { [%eval 1.34] [%clk 0:40:46] } 28... Qd7 { [%eval 1.29] [%clk 0:08:36] } 29. Rfe1 { [%eval 1.35] [%clk 0:40:32] } 29... Ng6 { [%eval 1.68] [%clk 0:04:21] } 30. Qc4 { [%eval 1.44] [%clk 0:38:40] } 30... Rxe4?! { [%eval 2.08] } { Inaccuracy. Rac8 was best. } { [%clk 0:03:57] } 31. fxe4 { [%eval 2.07] [%clk 0:38:50] } 31... Qg4 { [%eval 2.29] [%clk 0:03:24] } 32. Qe2 { [%eval 2.37] [%clk 0:38:28] } 32... Qd7 { [%eval 2.35] [%clk 0:03:04] } 33. Qf3 { [%eval 2.44] [%clk 0:37:58] } 33... Re8 { [%eval 2.27] [%clk 0:03:23] } 34. e5 { [%eval 2.39] [%clk 0:37:43] } 34... h5 { [%eval 2.65] [%clk 0:03:35] } 35. d6 { [%eval 2.28] [%clk 0:37:03] } 35... cxd6 { [%eval 2.35] [%clk 0:04:01] } 36. Bxd6? { [%eval 0.9] } { Mistake. Qc6 was best. } { [%clk 0:37:30] } 36... Rc8 { [%eval 1.04] [%clk 0:03:58] } 37. Rf1?! { [%eval 0.0] } { Inaccuracy. d5 was best. } { [%clk 0:36:55] } 37... h4 { [%eval 0.0] [%clk 0:04:04] } 38. g4 { [%eval 0.0] [%clk 0:34:20] } 38... Rc4 { [%eval 0.0] [%clk 0:03:32] } 39. Qa8+ { [%eval 0.0] [%clk 0:32:00] } 39... Rc8 { [%eval 0.0] [%clk 0:01:55] } 40. Qf3 { [%eval 0.0] [%clk 0:30:43] } 40... Rc4 { [%eval 0.0] [%clk 0:02:09] } 41. Qa8+ { [%eval 0.0] [%clk 0:30:58] } 41... Rc8 { [%eval 0.0] [%clk 0:02:37] } 42. Qd5? { [%eval -1.46] } { Mistake. Qe4 was best. } { [%clk 0:31:06] } 42... h3 { [%eval -1.39] [%clk 0:01:19] } 43. Qe4 { [%eval -1.63] [%clk 0:30:01] } 43... Rc4? { [%eval -0.31] } { Mistake. Nf4 was best. } { [%clk 0:01:36] } 44. Rg1?? { [%eval -3.64] } { Blunder. Kg1 was best. } { [%clk 0:29:13] } 44... Rxd4 { [%eval -3.86] [%clk 0:01:04] } 45. Qc6 { [%eval -2.76] [%clk 0:29:17] } 45... Qe6 { [%eval -3.94] [%clk 0:01:11] } 46. Bc7 { [%eval -4.38] [%clk 0:28:52] } 46... Qa2?! { [%eval -3.4] } { Inaccuracy. Qb3 was best. } { [%clk 0:01:03] } 47. e6 { [%eval -4.01] [%clk 0:25:23] } 47... fxe6?! { [%eval -2.75] } { Inaccuracy. Kh7 was best. } { [%clk 0:01:05] } 48. Re1?? { [%eval #-7] } { Checkmate is now unavoidable. Bxb6 was best. } { [%clk 0:24:47] } 48... Rxg4?? { [%eval -0.66] } { Lost forced checkmate sequence. Qe2 was best. } { [%clk 0:00:43] } 49. Qxe6+ { [%eval -0.71] [%clk 0:24:48] } 49... Qxe6 { [%eval -0.5] [%clk 0:01:12] } 50. Rxe6 { [%eval -0.56] [%clk 0:25:13] } 50... Rc4?! { [%eval 0.0] } { Inaccuracy. Kf7 was best. } { [%clk 0:00:43] } 51. Bxb6? { [%eval -1.18] } { Mistake. Rc6 was best. } { [%clk 0:23:45] } 51... Rc1+ { [%eval -1.13] [%clk 0:00:59] } 52. Bg1 { [%eval -1.07] [%clk 0:24:14] } 52... Nf4 { [%eval -0.83] [%clk 0:00:59] } 53. Re4?! { [%eval -1.83] } { Inaccuracy. Re5 was best. } { [%clk 0:23:12] } 53... Nd3 { [%eval -1.34] [%clk 0:01:01] } 54. Re2 { [%eval -1.27] [%clk 0:23:40] } 54... Rb1 { [%eval -1.38] [%clk 0:01:10] } 55. b6 { [%eval -1.27] [%clk 0:22:06] } 55... Kf7 { [%eval -1.13] [%clk 0:00:58] } 56. Rd2?! { [%eval -1.81] } { Inaccuracy. b7 was best. } { [%clk 0:22:33] } 56... Ne5 { [%eval -2.59] [%clk 0:01:09] } 57. Rd5? { [%eval -4.86] } { Mistake. Rf2+ was best. } { [%clk 0:20:58] } 57... Ke6?? { [%eval -0.32] } { Blunder. Kf6 was best. } { [%clk 0:01:00] } 58. Rb5 { [%eval -0.31] [%clk 0:21:23] } 58... Rxb5 { [%eval -0.32] [%clk 0:01:25] } 59. axb5 { [%eval -0.19] [%clk 0:21:49] } 59... Kd5 { [%eval 0.0] [%clk 0:00:41] } 60. b7 { [%eval -0.05] [%clk 0:21:41] } 60... Nd7 { [%eval -0.13] [%clk 0:01:10] } 61. Be3 { [%eval -0.3] [%clk 0:21:52] } 61... a4 { [%eval -0.13] [%clk 0:01:32] } 62. Kg1 { [%eval -0.19] [%clk 0:21:58] } 62... a3 { [%eval -0.27] [%clk 0:01:57] } 63. Bc1 { [%eval -0.28] [%clk 0:22:26] } 63... a2 { [%eval -0.09] [%clk 0:02:25] } 64. Bb2 { [%eval -0.16] [%clk 0:22:53] } 64... g6 { [%eval -0.05] [%clk 0:01:27] } 65. Kf2 { [%eval -0.19] [%clk 0:23:16] } 65... Kc5 { [%eval 0.0] [%clk 0:01:40] } 66. Kg3 { [%eval 0.0] [%clk 0:23:42] } 66... Kb6 { [%eval 0.0] [%clk 0:01:38] } 67. Kxh3 { [%eval 0.0] [%clk 0:23:54] } 67... Kxb7 { [%eval 0.0] [%clk 0:02:08] } 68. Kg4 { [%eval 0.0] [%clk 0:24:18] } 68... Nc5 { [%eval 0.0] [%clk 0:00:54] } 69. Kg5 { [%eval 0.0] [%clk 0:23:59] } 69... Nd3 { [%eval 0.0] [%clk 0:01:22] } 70. Ba1 { [%eval 0.0] [%clk 0:24:12] } 70... Ne1 { [%eval 0.0] [%clk 0:01:13] } 71. Kxg6 { [%eval 0.0] [%clk 0:24:19] } 71... Kb6 { [%eval 0.0] [%clk 0:01:13] } 72. h4 { [%eval -0.06] [%clk 0:24:45] } 72... Ng2 { [%eval -0.01] [%clk 0:01:41] } 73. Kg5 { [%eval -0.08] [%clk 0:24:49] } 73... Nxh4 { [%eval -0.14] [%clk 0:02:06] } 74. Kxh4 { [%eval 0.0] } 1/2-1/2