Event: Round 5: Aleksandr Ostrovskiy - Carlos Sandoval
Date: 2022-08-05
White: Aleksandr Ostrovskiy
WhiteTitle: IM
Black: Carlos Sandoval
BlackTitle: FM
Result: 1-0
ECO: B31
Opening: Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation
Variant: Standard

1. e4 { [%eval 0.33] [%clk 1:21:05] } 1... c5 { [%eval 0.32] [%clk 1:30:09] } 2. Nf3 { [%eval 0.0] [%clk 1:21:19] } 2... Nc6 { [%eval 0.0] [%clk 1:29:47] } 3. Bb5 { [%eval 0.51] [%clk 1:21:15] } 3... g6 { [%eval 0.59] [%clk 1:29:08] } 4. O-O { [%eval 0.2] [%clk 1:17:20] } 4... Bg7 { [%eval 0.43] [%clk 1:29:12] } 5. Re1 { [%eval 0.47] [%clk 1:17:24] } 5... e5 { [%eval 0.35] [%clk 1:28:52] } 6. Bxc6 { [%eval 0.29] [%clk 1:15:26] } 6... dxc6 { [%eval 0.37] [%clk 1:29:11] } 7. d3 { [%eval 0.25] [%clk 1:15:50] } 7... Qe7 { [%eval 0.42] [%clk 1:28:26] } 8. a3 { [%eval 0.28] [%clk 1:15:06] } 8... Nf6 { [%eval 0.32] [%clk 1:25:58] } 9. b4 { [%eval 0.09] [%clk 1:15:08] } 9... O-O { [%eval 0.19] [%clk 1:26:21] } 10. bxc5 { [%eval 0.09] [%clk 1:15:34] } 10... Qxc5 { [%eval 0.21] [%clk 1:26:40] } 11. a4 { [%eval 0.2] [%clk 1:15:12] } 11... Rd8 { [%eval 0.19] [%clk 1:18:39] } 12. Ba3 { [%eval 0.03] [%clk 1:11:24] } 12... Qa5 { [%eval 0.08] [%clk 1:18:30] } 13. Nbd2 { [%eval -0.02] [%clk 1:10:38] } 13... Qc7 { [%eval 0.22] [%clk 1:13:08] } 14. Nc4 { [%eval 0.05] [%clk 0:53:05] } 14... Nh5 { [%eval -0.03] [%clk 1:10:24] } 15. Bb2 { [%eval -0.52] [%clk 0:50:02] } 15... Be6?! { [%eval 0.18] } { Inaccuracy. b5 was best. } { [%clk 1:04:45] } 16. Ne3 { [%eval -0.01] [%clk 0:45:00] } 16... Nf4 { [%eval 0.37] [%clk 0:57:51] } 17. g3?! { [%eval -0.24] } { Inaccuracy. h4 was best. } { [%clk 0:38:59] } 17... Nh3+ { [%eval -0.29] [%clk 0:42:40] } 18. Kg2 { [%eval -0.01] [%clk 0:38:23] } 18... h6 { [%eval 0.03] [%clk 0:42:42] } 19. Qe2 { [%eval -0.29] [%clk 0:19:09] } 19... Ng5?! { [%eval 0.42] } { Inaccuracy. b6 was best. } { [%clk 0:38:34] } 20. Ng1?! { [%eval -0.29] } { Inaccuracy. Nxg5 was best. } { [%clk 0:16:25] } 20... f5 { [%eval 0.1] [%clk 0:28:29] } 21. h4 { [%eval 0.29] [%clk 0:13:44] } 21... Nh7 { [%eval -0.01] [%clk 0:27:03] } 22. h5 { [%eval -0.35] [%clk 0:12:29] } 22... f4?? { [%eval 2.36] } { Blunder. Ng5 was best. } { [%clk 0:16:29] } 23. hxg6 { [%eval 1.5] [%clk 0:12:25] } 23... Ng5 { [%eval 1.17] [%clk 0:05:17] } 24. gxf4?! { [%eval 0.61] } { Inaccuracy. Nf5 was best. } { [%clk 0:01:31] } 24... exf4 { [%eval 0.68] [%clk 0:05:40] } 25. Bxg7 { [%eval 0.65] [%clk 0:02:00] } 25... Kxg7 { [%eval 0.54] [%clk 0:02:10] } 26. Nf5+ { [%eval 0.42] [%clk 0:02:24] } 26... Kxg6 { [%eval 0.31] [%clk 0:02:38] } 27. Nf3 { [%eval 0.35] [%clk 0:02:03] } 27... Bxf5?? { [%eval 2.58] } { Blunder. Rg8 was best. } { [%clk 0:00:42] } 28. exf5+ { [%eval 2.58] [%clk 0:01:58] } 28... Kxf5 { [%eval 2.37] [%clk 0:01:11] } 29. Nxg5 { [%eval 2.8] [%clk 0:01:28] } 29... Kxg5 { [%eval 2.38] [%clk 0:01:39] } 30. Rh1 { [%eval 2.28] [%clk 0:00:35] } 30... Rg8 { [%eval 2.55] [%clk 0:01:24] } 31. Kf3 { [%eval 2.52] [%clk 0:00:51] } 31... Rae8 { [%eval 2.65] [%clk 0:00:42] } 32. Rag1+ { [%eval 1.88] [%clk 0:00:54] } 32... Kf5 { [%eval 2.51] [%clk 0:01:11] } 33. Rh5+ { [%eval 2.55] [%clk 0:01:02] } 33... Kf6 { [%eval 2.48] [%clk 0:01:41] } 34. Rxh6+ { [%eval 2.49] [%clk 0:01:12] } 34... Kf5 { [%eval 2.64] [%clk 0:02:10] } 35. Rh5+ { [%eval 2.29] [%clk 0:01:11] } 35... Kf6 { [%eval 2.44] [%clk 0:02:39] } 36. Rh6+ { [%eval 2.39] [%clk 0:01:05] } 36... Kf5 { [%eval 2.38] [%clk 0:03:08] } 37. Rh5+ { [%eval 2.67] [%clk 0:00:59] } 37... Kf6 { [%eval 2.29] [%clk 0:03:38] } 38. Qd1?! { [%eval 1.58] } { Inaccuracy. Qf1 was best. } { [%clk 0:01:12] } 38... Qf7 { [%eval 1.73] [%clk 0:00:56] } 39. Qa1+ { [%eval 1.65] [%clk 0:01:17] } 39... Ke7 { [%eval 1.56] [%clk 0:01:10] } 40. Re5+ { [%eval 1.65] [%clk 0:00:33] } 40... Kd7 { [%eval 1.63] [%clk 0:01:05] } 41. Qd4+ { [%eval 1.53] [%clk 0:00:48] } 41... Kc8?! { [%eval 2.68] } { Inaccuracy. Kc7 was best. } { [%clk 0:00:52] } 42. Rxg8 { [%eval 2.88] [%clk 0:00:56] } 42... Qxg8?! { [%eval 4.17] } { Inaccuracy. Rxg8 was best. } { [%clk 0:00:45] } 43. Rxe8+? { [%eval 2.2] } { Mistake. Qxa7 was best. } { [%clk 0:00:48] } 43... Qxe8 { [%eval 2.75] [%clk 0:01:13] } 44. Qxa7 { [%eval 2.65] [%clk 0:00:34] } 44... Qe5?! { [%eval 3.5] } { Inaccuracy. Qh5+ was best. } { [%clk 0:00:34] } 45. a5 { [%eval 2.82] [%clk 0:00:35] } 45... Qc3? { [%eval 4.5] } { Mistake. Qh5+ was best. } { [%clk 0:00:39] } 46. a6 { [%eval 4.81] [%clk 0:00:37] } 46... bxa6 { [%eval 4.57] [%clk 0:01:07] } 47. Qxa6+ { [%eval 4.83] [%clk 0:01:03] } 47... Kd7 { [%eval 4.55] [%clk 0:01:19] } 48. Qc4 { [%eval 4.37] [%clk 0:01:09] } 48... Qd2 { [%eval 4.73] [%clk 0:01:47] } 49. Qd4+ { [%eval 4.48] [%clk 0:01:00] } 49... Ke6?! { [%eval 6.32] } { Inaccuracy. Kc8 was best. } { [%clk 0:01:46] } 50. Qe4+ { [%eval 5.18] [%clk 0:00:36] } 50... Kd7 { [%eval 5.08] [%clk 0:02:09] } 51. Qf5+ { [%eval 4.79] [%clk 0:00:59] } 51... Kd8 { [%eval 4.88] [%clk 0:02:28] } 52. Qf8+ { [%eval 4.99] [%clk 0:00:48] } 52... Kd7 { [%eval 5.0] [%clk 0:02:54] } 53. Qc5?! { [%eval 3.71] } { Inaccuracy. Qf5+ was best. } { [%clk 0:00:44] } 53... Kc7 { [%eval 3.94] [%clk 0:03:01] } 54. Qc4 { [%eval 4.24] [%clk 0:00:35] } 54... Kb7 { [%eval 4.37] [%clk 0:02:49] } 55. c3 { [%eval 4.33] [%clk 0:00:36] } 55... Kb6 { [%eval 4.73] [%clk 0:02:21] } 56. Qb4+ { [%eval 4.4] [%clk 0:00:52] } 56... Ka7 { [%eval 4.39] [%clk 0:02:37] } 57. Qd4+ { [%eval 4.48] [%clk 0:01:03] } 57... Kb7 { [%eval 4.52] [%clk 0:02:54] } 58. c4 { [%eval 4.31] [%clk 0:01:17] } 58... Ka6 { [%eval 4.75] [%clk 0:02:11] } 59. Qd6 { [%eval 4.43] [%clk 0:01:10] } 59... Kb6 { [%eval 4.48] [%clk 0:02:18] } 60. Qxf4 { [%eval 4.55] [%clk 0:00:40] } 60... Qd1+ { [%eval 4.72] [%clk 0:02:43] } 61. Ke4 { [%eval 4.62] [%clk 0:01:04] } 61... Qh1+ { [%eval 4.51] [%clk 0:02:43] } 62. Qf3 { [%eval 4.5] [%clk 0:01:19] } 62... Qh4+ { [%eval 4.34] [%clk 0:02:12] } 63. Ke3 { [%eval 4.47] [%clk 0:01:25] } 63... Qe7+ { [%eval 5.26] [%clk 0:01:46] } 64. Qe4 { [%eval 4.71] [%clk 0:01:51] } 64... Qg5+ { [%eval 5.29] [%clk 0:02:13] } 65. Ke2 { [%eval 4.62] [%clk 0:02:02] } 65... Qh5+ { [%eval 4.79] [%clk 0:00:44] } 66. Qf3 { [%eval 4.4] [%clk 0:02:27] } 66... Qg6 { [%eval 5.03] [%clk 0:00:49] } 67. Qe3+ { [%eval 4.97] [%clk 0:02:43] } 67... Kb7 { [%eval 4.85] [%clk 0:00:43] } 68. f4 { [%eval 5.25] [%clk 0:02:46] } 68... Qg2+ { [%eval 5.39] [%clk 0:00:48] } 69. Qf2 { [%eval 5.03] [%clk 0:03:12] } 69... Qg4+ { [%eval 5.09] [%clk 0:01:14] } 70. Kd2 { [%eval 4.98] [%clk 0:03:32] } 70... Qf5 { [%eval 5.01] [%clk 0:01:38] } 71. Qe3 { [%eval 4.6] [%clk 0:03:13] } 71... Qa5+ { [%eval 5.23] [%clk 0:01:32] } 72. Ke2 { [%eval 5.24] [%clk 0:03:24] } 72... Qh5+ { [%eval 5.13] [%clk 0:02:00] } 73. Qf3 { [%eval 5.14] [%clk 0:03:47] } 73... Qf5 { [%eval 5.27] [%clk 0:02:05] } 74. Kd1 { [%eval 5.1] [%clk 0:03:17] } 74... Kb6 { [%eval 4.88] [%clk 0:02:03] } 75. Qe4 { [%eval 5.17] [%clk 0:03:08] } 75... Qh5+ { [%eval 5.3] [%clk 0:01:40] } 76. Kc2 { [%eval 5.28] [%clk 0:01:39] } 76... Qh2+ { [%eval 5.3] [%clk 0:02:05] } 77. Kc3 { [%eval 5.6] [%clk 0:01:51] } 77... Qa2 { [%eval 4.87] [%clk 0:01:00] } 78. c5+ { [%eval 6.35] [%clk 0:01:02] } 78... Kb7 { [%eval 6.58] [%clk 0:00:52] } 79. Qe7+ { [%eval 5.72] [%clk 0:01:00] } 79... Ka6 { [%eval 6.3] [%clk 0:01:05] } 80. Qd6 { [%eval 5.86] [%clk 0:01:11] } 80... Qa1+ { [%eval 6.76] [%clk 0:01:07] } 81. Kd2 { [%eval 6.84] [%clk 0:01:31] } 81... Kb5 { [%eval 6.37] [%clk 0:00:34] } 82. Ke3 { [%eval 6.34] } 82... Qe1+ { [%eval 6.91] [%clk 0:00:48] } 83. Kd4 { [%eval 6.72] [%clk 0:01:06] } 83... Qa1+ { [%eval 6.55] [%clk 0:00:50] } 84. Ke4 { [%eval 6.75] [%clk 0:01:33] } 84... Qh1+ { [%eval 6.96] [%clk 0:00:56] } 85. Ke5 { [%eval 6.71] [%clk 0:01:53] } 85... Qh8+ { [%eval 6.76] [%clk 0:01:09] } 86. Ke6 { [%eval 6.88] [%clk 0:02:14] } 86... Qe8+ { [%eval 7.04] [%clk 0:01:13] } 87. Kf6 { [%eval 7.31] [%clk 0:02:25] } 87... Qh8+ { [%eval 7.5] [%clk 0:01:02] } 88. Ke7 { [%eval 7.43] [%clk 0:02:43] } 88... Qg7+ { [%eval 7.71] [%clk 0:00:46] } 89. Kd8 { [%eval 7.87] [%clk 0:03:01] } 89... Qg8+ { [%eval 7.44] [%clk 0:01:13] } 90. Kc7 { [%eval 7.99] [%clk 0:02:31] } 90... Qf7+ { [%eval 7.89] [%clk 0:01:29] } 91. Kb8 { [%eval 8.06] [%clk 0:02:36] } 91... Qh7 { [%eval 8.91] [%clk 0:01:29] } 92. Kc8 { [%eval 8.18] [%clk 0:00:40] } 92... Qf7 { [%eval 7.64] [%clk 0:00:59] } 93. d4 { [%eval 7.66] [%clk 0:00:46] } 93... Qh7 { [%eval 8.9] [%clk 0:00:39] } 94. Kb8 { [%eval 7.62] [%clk 0:00:47] } 94... Qg7 { [%eval 10.21] [%clk 0:00:36] } 95. Qe5 { [%eval 9.02] [%clk 0:01:02] } 95... Qd7 { [%eval 9.34] [%clk 0:00:32] } 96. Qd6 { [%eval 8.44] [%clk 0:00:39] } 96... Qg7 { [%eval 9.77] [%clk 0:00:37] } 97. Kc8 { [%eval 8.73] [%clk 0:00:40] } 97... Qh7 { [%eval 8.97] [%clk 0:00:36] } 98. Qe5 { [%eval 8.65] [%clk 0:00:38] } 98... Qf7 { [%eval 9.08] [%clk 0:00:45] } 99. Qb8+ { [%eval 8.7] [%clk 0:00:42] } 99... Kc4 { [%eval 8.56] [%clk 0:00:55] } 100. Qe5 { [%eval 8.65] [%clk 0:00:34] } 100... Kb5 { [%eval 8.75] [%clk 0:01:01] } 101. Kd8 { [%eval 8.09] [%clk 0:00:55] } 101... Qf8+ { [%eval 8.68] [%clk 0:01:09] } 102. Kd7 { [%eval 7.77] [%clk 0:01:00] } 102... Qf7+ { [%eval 8.94] [%clk 0:01:29] } 103. Kc8 { [%eval 8.94] [%clk 0:01:11] } 103... Qh7 { [%eval 9.38] [%clk 0:01:53] } 104. f5 { [%eval 9.61] [%clk 0:02:48] } 104... Qf7 { [%eval 10.04] [%clk 0:01:52] } 105. f6 { [%eval 11.89] [%clk 0:02:15] } 105... Qg8+ { [%eval 10.55] [%clk 0:01:47] } 106. Kb7 { [%eval 12.01] [%clk 0:01:58] } 106... Qf7+ { [%eval 15.36] [%clk 0:00:42] } 107. Qe7 { [%eval 14.9] [%clk 0:02:21] } 107... Qb3 { [%eval 16.01] [%clk 0:00:37] } 108. f7 { [%eval 16.15] [%clk 0:01:52] } 108... Ka5+ { [%eval 23.66] [%clk 0:01:05] } 109. Kc8 { [%eval 15.79] [%clk 0:01:09] } 109... Qh3+ { [%eval 17.71] [%clk 0:01:26] } 110. Kd8 { [%eval 18.44] [%clk 0:01:26] } 110... Qh8+ { [%eval 27.77] [%clk 0:00:50] } 111. f8=Q { [%eval 26.29] [%clk 0:01:19] } 111... Qxd4+ { [%eval #8] [%clk 0:01:18] } 112. Ke8?! { [%eval 31.91] } { Lost forced checkmate sequence. Kc7 was best. } { [%clk 0:01:15] } 112... Qc3?! { [%eval #8] } { Checkmate is now unavoidable. Qg4 was best. } { [%clk 0:01:27] } 113. Qa7+ { [%eval #7] [%clk 0:01:05] } 113... Kb4 { [%eval #7] [%clk 0:01:50] } 114. Qf4+ { [%eval #6] [%clk 0:01:15] } 114... Kb3 { [%eval #5] [%clk 0:02:14] } 115. Qaa4+ { [%eval #4] [%clk 0:01:23] } 1-0