Event: Round 1: Sismeiro, Miguel - Ryabukhin, Roman
Date: 2025-03-16
White: Sismeiro, Miguel
WhiteTitle: FM
WhiteElo: 2284
Black: Ryabukhin, Roman
BlackTitle: CM
BlackElo: 2180
Result: 1/2-1/2
ECO: A28
Opening: English Opening: Four Knights System, Nimzowitsch Variation
Variant: Standard
TimeControl: 90+30

1. c4 { [%eval 0.12] [%clk 1:22:00] } 1... e5 { [%eval 0.12] [%clk 1:30:22] } 2. Nc3 { [%eval 0.04] [%clk 1:22:25] } 2... Nf6 { [%eval 0.12] [%clk 1:30:34] } 3. Nf3 { [%eval 0.1] [%clk 1:22:51] } 3... Nc6 { [%eval 0.14] [%clk 1:30:32] } 4. e4 { [%eval 0.09] [%clk 1:22:09] } 4... d6 { [%eval 0.41] [%clk 1:23:16] } 5. d4 { [%eval 0.25] [%clk 1:22:35] } 5... Bg4 { [%eval 0.37] [%clk 1:23:35] } 6. d5 { [%eval 0.33] [%clk 1:23:01] } 6... Nd4 { [%eval 0.38] [%clk 1:23:07] } 7. Be2 { [%eval 0.31] [%clk 1:22:40] } 7... Bxf3 { [%eval 0.49] [%clk 1:22:27] } 8. Bxf3 { [%eval 0.58] [%clk 1:22:20] } 8... c5 { [%eval 0.57] [%clk 1:22:02] } 9. dxc6 { [%eval 0.44] [%clk 1:17:36] } 9... bxc6 { [%eval 0.48] [%clk 1:21:56] } 10. Be3 { [%eval 0.52] [%clk 1:16:28] } 10... c5 { [%eval 0.51] [%clk 1:15:38] } 11. Qa4+ { [%eval 0.25] [%clk 1:12:03] } 11... Qd7 { [%eval 0.18] [%clk 1:14:23] } 12. Bd1 { [%eval 0.19] [%clk 1:12:08] } 12... Be7 { [%eval 0.24] [%clk 1:14:02] } 13. Qxd7+ { [%eval 0.21] [%clk 1:10:36] } 13... Kxd7 { [%eval 0.3] [%clk 1:11:50] } 14. Ba4+ { [%eval 0.44] [%clk 1:08:53] } 14... Kc8 { [%eval 0.36] [%clk 1:11:45] } 15. f3 { [%eval 0.36] [%clk 1:00:13] } 15... Rb8 { [%eval 0.33] [%clk 1:11:09] } 16. O-O-O { [%eval 0.31] [%clk 1:00:01] } 16... a6 { [%eval 0.27] [%clk 1:08:43] } 17. a3 { [%eval 0.27] [%clk 0:51:10] } 17... Bd8 { [%eval 0.26] [%clk 1:08:16] } 18. Kb1 { [%eval 0.28] [%clk 0:51:03] } 18... Ba5 { [%eval 0.31] [%clk 1:07:48] } 19. Ka2 { [%eval 0.29] [%clk 0:49:54] } 19... Kc7 { [%eval 0.28] [%clk 1:02:11] } 20. Rd3?! { [%eval -0.44] } { Inaccuracy. Nd5+ was best. } { [%clk 0:46:46] } 20... Bxc3 { [%eval -0.39] [%clk 0:59:22] } 21. Rxc3 { [%eval -0.33] [%clk 0:47:12] } 21... Rb7 { [%eval -0.19] [%clk 0:52:46] } 22. Rb1 { [%eval -0.28] [%clk 0:47:01] } 22... Rhb8 { [%eval -0.26] [%clk 0:52:02] } 23. Rd3 { [%eval -0.31] [%clk 0:46:06] } 23... Nh5 { [%eval -0.19] [%clk 0:47:10] } 24. Bd2 { [%eval -0.21] [%clk 0:44:56] } 24... Nf4 { [%eval 0.0] [%clk 0:45:48] } 25. Ba5+ { [%eval -0.03] [%clk 0:45:20] } 25... Kc8 { [%eval 0.0] [%clk 0:46:12] } 26. Rd2 { [%eval -0.03] [%clk 0:45:43] } 26... Nfe6 { [%eval -0.12] [%clk 0:40:31] } 27. b4 { [%eval -0.12] [%clk 0:37:13] } 27... Nd8 { [%eval -0.14] [%clk 0:36:38] } 28. Rbd1 { [%eval -0.24] [%clk 0:30:14] } 28... f6 { [%eval 0.04] [%clk 0:29:48] } 29. h4 { [%eval -0.07] [%clk 0:27:04] } 29... N8e6 { [%eval -0.16] [%clk 0:27:31] } 30. Rf1 { [%eval -0.31] [%clk 0:24:20] } 30... cxb4 { [%eval -0.26] [%clk 0:23:21] } 31. axb4 { [%eval -0.33] [%clk 0:24:19] } 31... Rxb4 { [%eval -0.28] [%clk 0:23:43] } 32. Bxb4 { [%eval -0.31] [%clk 0:23:57] } 32... Rxb4 { [%eval -0.32] [%clk 0:24:10] } 33. Ka3 { [%eval -0.41] [%clk 0:20:18] } 33... Rxc4 { [%eval -0.4] [%clk 0:23:57] } 34. Rb1 { [%eval -0.65] [%clk 0:19:23] } 34... Nc5 { [%eval -0.68] [%clk 0:24:08] } 35. Bd1 { [%eval -1.07] [%clk 0:18:44] } 35... a5 { [%eval -0.7] [%clk 0:21:14] } 36. Be2? { [%eval -2.24] } { Mistake. h5 was best. } { [%clk 0:06:58] } 36... Ra4+?! { [%eval -1.24] } { Inaccuracy. Rc3+ was best. } { [%clk 0:14:32] } 37. Kb2 { [%eval -1.14] [%clk 0:07:25] } 37... Rb4+ { [%eval -1.17] [%clk 0:11:30] } 38. Ka2 { [%eval -1.07] [%clk 0:07:24] } 38... Ra4+ { [%eval -1.19] [%clk 0:11:28] } 39. Kb2 { [%eval -1.12] [%clk 0:07:53] } 39... Kc7 { [%eval -0.96] [%clk 0:11:57] } 40. Kc3 { [%eval -1.2] [%clk 0:05:45] } 40... Ra3+ { [%eval -1.17] [%clk 0:11:17] } 41. Kb2 { [%eval -1.29] [%clk 0:05:06] } 41... Re3 { [%eval -1.29] [%clk 0:11:19] } 42. Bd1 { [%eval -1.12] [%clk 0:01:41] } 42... Nb5?! { [%eval -0.56] } { Inaccuracy. g5 was best. } { [%clk 0:09:41] } 43. Rc1?! { [%eval -1.18] } { Inaccuracy. Ra1 was best. } { [%clk 0:00:58] } 43... Kb6 { [%eval -1.17] [%clk 0:09:23] } 44. Rc4?! { [%eval -1.77] } { Inaccuracy. Ra1 was best. } { [%clk 0:00:43] } 44... Nd4 { [%eval -1.46] [%clk 0:08:36] } 45. Ba4 { [%eval -1.62] [%clk 0:00:42] } 45... Re1 { [%eval -1.57] [%clk 0:07:15] } 46. Ka2 { [%eval -1.73] [%clk 0:00:37] } 46... Na6? { [%eval -0.15] } { Mistake. Rh1 was best. } { [%clk 0:07:27] } 47. Kb2? { [%eval -1.3] } { Mistake. Rc8 was best. } { [%clk 0:00:33] } 47... g6? { [%eval -0.07] } { Mistake. Nc5 was best. } { [%clk 0:05:40] } 48. Rc1 { [%eval -0.03] [%clk 0:00:37] } 48... Rxc1 { [%eval -0.07] [%clk 0:04:24] } 49. Kxc1 { [%eval -0.03] [%clk 0:01:06] } 49... Nc5 { [%eval 0.0] [%clk 0:04:53] } 50. Rb2+ { [%eval 0.0] [%clk 0:01:21] } 50... Kc7 { [%eval 0.0] [%clk 0:04:18] } 51. Bc2 { [%eval 0.0] [%clk 0:01:16] } 51... f5 { [%eval 0.06] [%clk 0:03:17] } 52. Ra2 { [%eval -0.03] [%clk 0:01:25] } 52... fxe4 { [%eval -0.08] [%clk 0:02:41] } 53. Bxe4 { [%eval -0.06] [%clk 0:01:15] } 53... Kb6 { [%eval 0.0] [%clk 0:01:13] } 54. Kd2 { [%eval -0.15] [%clk 0:00:59] } 54... Na6 { [%eval 0.0] [%clk 0:00:40] } 55. h5 { [%eval 0.0] [%clk 0:00:40] } 55... Nb4 { [%eval 0.0] [%clk 0:00:34] } 56. Ra3 { [%eval 0.0] [%clk 0:00:34] } 56... gxh5 { [%eval 0.0] [%clk 0:00:52] } 57. Bxh7 { [%eval 0.0] [%clk 0:00:49] } 57... h4 { [%eval 0.0] [%clk 0:00:46] } 58. Bb1 { [%eval -0.21] [%clk 0:00:36] } 58... Nd5 { [%eval -0.22] [%clk 0:00:40] } 59. Ke1?? { [%eval -2.46] } { Blunder. Bd3 was best. } { [%clk 0:00:33] } 59... Nf4? { [%eval -0.81] } { Mistake. Kb5 was best. } { [%clk 0:00:45] } 60. Kf2 { [%eval -1.08] [%clk 0:00:56] } 60... d5?! { [%eval 0.0] } { Inaccuracy. Kb5 was best. } { [%clk 0:00:41] } 61. Re3 { [%eval 0.0] [%clk 0:00:37] } 61... Nc6 { [%eval 0.04] [%clk 0:01:07] } 62. Rb3+?! { [%eval -0.53] } { Inaccuracy. Re1 was best. } { [%clk 0:00:47] } 62... Nb4 { [%eval -0.54] [%clk 0:01:12] } 63. g3 { [%eval -0.52] [%clk 0:00:36] } 63... hxg3+ { [%eval -0.41] [%clk 0:01:32] } 64. Kxg3 { [%eval -0.47] [%clk 0:01:02] } 64... d4 { [%eval -0.52] [%clk 0:01:36] } 65. Kf2 { [%eval -0.59] [%clk 0:01:03] } 65... Kc5 { [%eval -0.14] [%clk 0:01:54] } 66. Ra3 { [%eval -0.06] [%clk 0:01:28] } 66... Kb5 { [%eval -0.14] [%clk 0:02:20] } 67. Bf5 { [%eval -0.17] [%clk 0:01:45] } 67... d3 { [%eval 0.0] [%clk 0:02:19] } 68. Bd7+ { [%eval 0.0] [%clk 0:01:40] } 68... Kb6 { [%eval 0.0] [%clk 0:01:45] } 69. Ba4 { [%eval 0.0] [%clk 0:02:06] } 69... Nc2 { [%eval 0.01] [%clk 0:01:07] } 70. Rb3+ { [%eval 0.0] [%clk 0:02:08] } 70... Kc5 { [%eval 0.0] [%clk 0:00:33] } 71. Rb5+ { [%eval 0.0] [%clk 0:02:14] } 71... Kd4 { [%eval 0.0] [%clk 0:00:34] } 72. Rxa5 { [%eval 0.0] [%clk 0:02:32] } 72... Nd5 { [%eval 0.0] [%clk 0:00:47] } 73. Bb5 { [%eval 0.0] [%clk 0:00:35] } 73... Nde3 { [%eval 0.2] [%clk 0:00:40] } 74. Bxd3 { [%eval 0.17] [%clk 0:00:56] } 74... Kxd3 { [%eval 0.14] [%clk 0:00:58] } 75. Rxe5 { [%eval 0.14] [%clk 0:01:23] } 75... Nc4 { [%eval 0.12] [%clk 0:01:00] } 76. Rd5+ { [%eval 0.12] [%clk 0:01:30] } 76... Nd4 { [%eval 0.16] [%clk 0:01:25] } 77. Rd8 { [%eval 0.13] [%clk 0:01:56] } 77... Nd2 { [%eval 0.29] [%clk 0:01:26] } 78. f4 { [%eval 0.2] [%clk 0:02:24] } 78... Ne4+ { [%eval 0.12] [%clk 0:01:55] } 79. Kg2 { [%eval 0.13] [%clk 0:02:48] } 79... Ke3 { [%eval 0.2] [%clk 0:02:24] } 80. Rd5 { [%eval 0.11] [%clk 0:03:03] } 80... Ne6 { [%eval 0.11] [%clk 0:02:40] } 1/2-1/2