Event: U.S. Senior Championship
Site: Saint Louis, United States
Date: 2021-07-16
White: Sokolin, Leonid
WhiteElo: 2497
Black: Kaidanov, Gregory
BlackElo: 2547
Result: 0-1
ECO: C49
Opening: Four Knights Game: Spanish Variation, Nimzowitsch Variation
Variant: Standard

1. e4 { [%eval 0.24] [%clk 1:30:59] } 1... e5 { [%eval 0.12] [%clk 1:30:36] } 2. Nf3 { [%eval 0.18] [%clk 1:31:25] } 2... Nc6 { [%eval 0.18] [%clk 1:30:56] } 3. Nc3 { [%eval 0.17] [%clk 1:31:50] } 3... Nf6 { [%eval 0.13] [%clk 1:30:53] } 4. Bb5 { [%eval 0.13] [%clk 1:32:17] } 4... Bb4 { [%eval 0.28] [%clk 1:30:31] } 5. O-O { [%eval 0.25] [%clk 1:31:59] } 5... O-O { [%eval 0.09] [%clk 1:30:33] } 6. Bxc6 { [%eval 0.06] [%clk 1:32:07] } 6... dxc6 { [%eval 0.27] [%clk 1:29:37] } 7. d3 { [%eval 0.08] [%clk 1:32:15] } 7... Bd6 { [%eval 0.18] [%clk 1:28:27] } 8. h3 { [%eval 0.22] [%clk 1:31:01] } 8... Nd7 { [%eval 0.1] [%clk 1:23:15] } 9. Bg5 { [%eval 0.0] [%clk 1:22:44] } 9... f6 { [%eval 0.0] [%clk 1:23:08] } 10. Be3 { [%eval 0.0] [%clk 1:22:52] } 10... Rf7 { [%eval -0.1] [%clk 1:15:26] } 11. Ne2 { [%eval -0.24] [%clk 1:09:55] } 11... c5 { [%eval -0.01] [%clk 1:13:13] } 12. Nd2 { [%eval 0.0] [%clk 1:06:32] } 12... Nf8 { [%eval 0.2] [%clk 1:05:00] } 13. f4 { [%eval -0.09] [%clk 1:03:46] } 13... exf4 { [%eval -0.17] [%clk 1:04:42] } 14. Nxf4 { [%eval 0.0] [%clk 1:02:46] } 14... b6 { [%eval -0.07] [%clk 0:59:01] } 15. Nc4 { [%eval -0.04] [%clk 0:57:05] } 15... Bxf4 { [%eval 0.1] [%clk 0:56:20] } 16. Rxf4 { [%eval 0.0] [%clk 0:55:31] } 16... Ng6 { [%eval -0.01] [%clk 0:54:42] } 17. Rf2 { [%eval 0.09] [%clk 0:53:15] } 17... Be6 { [%eval 0.11] [%clk 0:54:34] } 18. b3 { [%eval 0.06] [%clk 0:52:53] } 18... Qd7 { [%eval 0.02] [%clk 0:53:21] } 19. Nd2 { [%eval 0.16] [%clk 0:49:54] } 19... Re8 { [%eval 0.39] [%clk 0:46:07] } 20. Nf3 { [%eval -0.01] [%clk 0:47:12] } 20... h6 { [%eval -0.03] [%clk 0:42:39] } 21. Qd2 { [%eval -0.26] [%clk 0:45:01] } 21... Qd6 { [%eval -0.09] [%clk 0:41:36] } 22. Raf1 { [%eval -0.02] [%clk 0:39:50] } 22... Kh7 { [%eval 0.14] [%clk 0:35:47] } 23. Kh1 { [%eval 0.0] [%clk 0:39:14] } 23... Bc8 { [%eval 0.34] [%clk 0:30:32] } 24. Ng1 { [%eval 0.07] [%clk 0:36:29] } 24... Ref8 { [%eval 0.32] [%clk 0:25:14] } 25. Ne2 { [%eval 0.48] [%clk 0:35:03] } 25... Bb7 { [%eval 0.46] [%clk 0:22:59] } 26. Nf4?! { [%eval -0.09] } { Inaccuracy. Kg1 was best. } { [%clk 0:32:46] } 26... Nh4 { [%eval -0.02] [%clk 0:18:37] } 27. Qd1?! { [%eval -0.68] } { Inaccuracy. Kh2 was best. } { [%clk 0:20:27] } 27... f5 { [%eval -0.77] [%clk 0:16:22] } 28. Qh5 { [%eval -0.52] [%clk 0:16:21] } 28... g5 { [%eval -0.41] [%clk 0:14:42] } 29. Nd5? { [%eval -1.76] } { Mistake. Ne2 was best. } { [%clk 0:08:17] } 29... Qg3 { [%eval -2.0] [%clk 0:12:47] } 30. Bd2 { [%eval -1.72] [%clk 0:08:00] } 30... Bxd5 { [%eval -1.49] [%clk 0:12:28] } 31. exd5 { [%eval -1.43] [%clk 0:08:07] } 31... f4 { [%eval -1.79] [%clk 0:05:56] } 32. Qg4?! { [%eval -2.49] } { Inaccuracy. Kg1 was best. } { [%clk 0:07:05] } 32... Nf5 { [%eval -1.74] [%clk 0:06:22] } 33. Kg1?! { [%eval -2.69] } { Inaccuracy. Qd1 was best. } { [%clk 0:05:35] } 33... Re8?? { [%eval -0.28] } { Blunder. Qxg4 was best. } { [%clk 0:03:39] } 34. Qh5 { [%eval -0.24] [%clk 0:03:03] } 34... Ree7 { [%eval 0.0] [%clk 0:03:15] } 35. Re2? { [%eval -1.21] } { Mistake. Bxf4 was best. } { [%clk 0:02:42] } 35... Ng7?! { [%eval -0.37] } { Inaccuracy. Rxe2 was best. } { [%clk 0:02:12] } 36. Rxe7 { [%eval -0.4] [%clk 0:02:16] } 36... Rxe7 { [%eval -0.22] [%clk 0:02:38] } 37. Qg4 { [%eval -0.15] [%clk 0:01:22] } 37... Qxg4 { [%eval -0.61] [%clk 0:02:22] } 38. hxg4 { [%eval -0.67] [%clk 0:01:51] } 38... Ne8 { [%eval -0.1] [%clk 0:02:23] } 39. g3 { [%eval -0.22] [%clk 0:01:51] } 39... fxg3 { [%eval -0.27] [%clk 0:02:10] } 40. Re1 { [%eval 0.0] [%clk 0:31:19] } 40... Rxe1+ { [%eval -0.15] } 41. Bxe1 { [%eval -0.27] } 41... Nf6 { [%eval -0.46] [%clk 0:19:47] } 42. c4 { [%eval -0.25] [%clk 0:31:44] } 42... Nxg4 { [%eval -0.25] [%clk 0:18:00] } 43. Bxg3 { [%eval -0.27] [%clk 0:32:05] } 43... Kg6 { [%eval -0.16] [%clk 0:16:28] } 44. Bxc7 { [%eval -0.07] [%clk 0:31:24] } 44... Kf5 { [%eval 0.0] [%clk 0:16:05] } 45. a4? { [%eval -1.15] } { Mistake. Bb8 was best. } { [%clk 0:26:16] } 45... Ne5 { [%eval -0.74] [%clk 0:14:15] } 46. a5? { [%eval -2.12] } { Mistake. Bb8 was best. } { [%clk 0:11:39] } 46... bxa5 { [%eval -2.12] [%clk 0:12:47] } 47. Bxa5 { [%eval -1.8] [%clk 0:07:10] } 47... Nxd3 { [%eval -2.01] [%clk 0:08:51] } 48. Bd2 { [%eval -1.71] [%clk 0:07:37] } 48... Ne5 { [%eval -1.98] [%clk 0:08:12] } 49. Kg2 { [%eval -1.88] [%clk 0:07:23] } 49... Ke4 { [%eval -2.03] [%clk 0:06:59] } 50. Kg3 { [%eval -2.74] [%clk 0:06:35] } 50... Kd3 { [%eval -3.04] [%clk 0:06:09] } 51. Ba5?! { [%eval -4.03] } { Inaccuracy. Be1 was best. } { [%clk 0:06:25] } 51... Kc2 { [%eval -4.05] [%clk 0:03:28] } 52. Bc7? { [%eval -6.71] } { Mistake. b4 was best. } { [%clk 0:03:24] } 52... Nd7 { [%eval -6.85] [%clk 0:03:48] } 53. Kg4 { [%eval -6.9] [%clk 0:03:18] } 53... Kxb3 { [%eval -6.93] [%clk 0:04:01] } 54. Kf5 { [%eval -7.3] [%clk 0:03:28] } 54... Kxc4 { [%eval -7.15] [%clk 0:03:53] } 55. Ke6 { [%eval -7.15] [%clk 0:03:56] } 55... Nf8+ { [%eval -7.0] [%clk 0:03:21] } 56. Ke5 { [%eval -7.62] [%clk 0:04:25] } 56... g4 { [%eval -7.62] [%clk 0:03:09] } 57. Ke4 { [%eval -7.97] [%clk 0:03:37] } 57... Nd7 { [%eval -7.84] [%clk 0:02:47] } 58. d6 { [%eval -8.55] [%clk 0:03:56] } 58... Kb5 { [%eval -8.79] [%clk 0:02:08] } 59. Kf4 { [%eval -9.36] [%clk 0:04:21] } 59... c4 { [%eval -10.38] [%clk 0:02:26] } 0-1