Event: Round 4 - GM B: Aleksandr Ostrovskiy - Cemil Can Ali Marandi
Site: https://lichess.org/study/G67bxmZ5/72eRykDf
Date: 2021-07-30
White: Aleksandr Ostrovskiy
Black: Cemil Can Ali Marandi
Result: 1/2-1/2
ECO: A28
Opening: English Opening: King's English Variation, Four Knights Variation, Quiet Line
Variant: Standard

1. c4 { [%eval 0.2] [%clk 1:30:56] } 1... e5 { [%eval 0.12] [%clk 1:30:30] } 2. Nc3 { [%eval 0.16] [%clk 1:31:20] } 2... Nf6 { [%eval 0.32] [%clk 1:30:46] } 3. Nf3 { [%eval 0.0] [%clk 1:31:40] } 3... Nc6 { [%eval 0.11] [%clk 1:31:10] } 4. e3 { [%eval 0.12] [%clk 1:32:04] } 4... Bb4 { [%eval 0.52] [%clk 1:31:26] } 5. Qc2 { [%eval 0.03] [%clk 1:32:18] } 5... Bxc3 { [%eval 0.08] [%clk 1:31:14] } 6. Qxc3 { [%eval 0.25] [%clk 1:31:56] } 6... Qe7 { [%eval 0.19] [%clk 1:31:38] } 7. d4 { [%eval 0.0] [%clk 1:29:52] } 7... Ne4 { [%eval 0.18] [%clk 1:27:45] } 8. Qd3 { [%eval 0.15] [%clk 1:29:25] } 8... exd4 { [%eval 0.22] [%clk 1:23:41] } 9. Nxd4 { [%eval 0.13] [%clk 1:29:25] } 9... O-O { [%eval 0.22] [%clk 1:24:02] } 10. Be2 { [%eval 0.09] [%clk 1:28:09] } 10... Qb4+ { [%eval 0.22] [%clk 1:23:08] } 11. Kf1 { [%eval 0.0] [%clk 1:27:51] } 11... Re8? { [%eval 1.4] } { Mistake. Qe7 was best. } { [%clk 1:22:11] } 12. Nb5 { [%eval 1.34] [%clk 1:18:54] } 12... Qc5 { [%eval 1.89] [%clk 1:16:36] } 13. Nxc7?! { [%eval 0.9] } { Inaccuracy. f3 was best. } { [%clk 0:58:37] } 13... Nb4 { [%eval 0.88] [%clk 1:15:25] } 14. Qb3 { [%eval 0.98] [%clk 0:57:18] } 14... Qxc7 { [%eval 0.97] [%clk 1:14:46] } 15. Qxb4 { [%eval 0.85] [%clk 0:57:10] } 15... a5 { [%eval 0.98] [%clk 1:14:22] } 16. Qe1 { [%eval 0.49] [%clk 0:49:36] } 16... Ra6 { [%eval 0.33] [%clk 1:12:13] } 17. f3 { [%eval 0.69] [%clk 0:49:23] } 17... Nc5 { [%eval 0.96] [%clk 1:11:36] } 18. Bd2 { [%eval 0.94] [%clk 0:42:06] } 18... Rg6?! { [%eval 1.86] } { Inaccuracy. Qe5 was best. } { [%clk 1:06:34] } 19. b3? { [%eval 0.44] } { Mistake. h4 was best. } { [%clk 0:36:20] } 19... b6 { [%eval 0.57] [%clk 1:05:08] } 20. Rd1 { [%eval 0.51] [%clk 0:33:32] } 20... Bb7 { [%eval 0.76] [%clk 1:03:30] } 21. Bc1 { [%eval 0.76] [%clk 0:28:45] } 21... Qe5 { [%eval 0.37] [%clk 1:01:47] } 22. Rd4 { [%eval 0.7] [%clk 0:22:59] } 22... Qf5 { [%eval 0.71] [%clk 0:56:29] } 23. Qd1 { [%eval 0.96] [%clk 0:13:32] } 23... h5 { [%eval 0.82] [%clk 0:46:06] } 24. Bd3?! { [%eval 0.0] } { Inaccuracy. Qd2 was best. } { [%clk 0:07:59] } 24... Nxd3 { [%eval 0.0] [%clk 0:41:35] } 25. Qxd3 { [%eval 0.0] [%clk 0:08:04] } 25... Qg5 { [%eval 0.0] [%clk 0:39:28] } 26. Qc2 { [%eval -0.33] [%clk 0:06:20] } 26... d5 { [%eval -0.42] [%clk 0:34:59] } 27. h4 { [%eval -0.61] [%clk 0:04:09] } 27... Qe5 { [%eval -0.8] [%clk 0:33:47] } 28. Qd2 { [%eval -0.5] [%clk 0:02:21] } 28... dxc4 { [%eval -0.88] [%clk 0:33:10] } 29. bxc4 { [%eval -0.38] [%clk 0:02:50] } 29... Bc6 { [%eval 0.0] [%clk 0:28:41] } 30. Bb2 { [%eval 0.0] [%clk 0:01:16] } 30... Qf5?! { [%eval 0.57] } { Inaccuracy. Qxe3 was best. } { [%clk 0:24:54] } 31. Qd3?! { [%eval 0.0] } { Inaccuracy. Rh3 was best. } { [%clk 0:00:50] } 31... Qf6 { [%eval 0.0] [%clk 0:24:05] } 32. Qe2 { [%eval -0.02] [%clk 0:01:17] } 32... Bb7 { [%eval 0.29] [%clk 0:20:31] } 33. Rg4 { [%eval 0.13] [%clk 0:00:47] } 33... Qe7?! { [%eval 0.68] } { Inaccuracy. Qd6 was best. } { [%clk 0:09:56] } 34. Rxg6 { [%eval 0.64] [%clk 0:01:14] } 34... fxg6 { [%eval 0.71] [%clk 0:10:24] } 35. Kf2 { [%eval 0.85] [%clk 0:01:10] } 35... Kh7 { [%eval 0.87] [%clk 0:10:35] } 36. Bd4?! { [%eval 0.33] } { Inaccuracy. Qd3 was best. } { [%clk 0:01:20] } 36... Ba6? { [%eval 1.39] } { Mistake. Rc8 was best. } { [%clk 0:09:58] } 37. Qb2 { [%eval 1.28] [%clk 0:00:44] } 37... Bxc4 { [%eval 1.22] [%clk 0:08:13] } 38. Qxb6 { [%eval 1.14] [%clk 0:01:06] } 38... Rc8?? { [%eval 3.43] } { Blunder. a4 was best. } { [%clk 0:05:36] } 39. Qxa5 { [%eval 3.46] [%clk 0:00:58] } 39... Bd3?! { [%eval 4.33] } { Inaccuracy. Rb8 was best. } { [%clk 0:04:08] } 40. Qe5?? { [%eval 1.2] } { Blunder. Kg3 was best. } { [%clk 0:00:58] } 40... Rc2+ { [%eval 1.22] [%clk 0:03:36] } 41. Kg3 { [%eval 1.15] [%clk 0:01:26] } 41... Qd7?? { [%eval 4.96] } { Blunder. Qxe5+ was best. } { [%clk 0:03:04] } 42. a4 { [%eval 5.26] [%clk 0:01:25] } 42... Ba6 { [%eval 5.16] [%clk 0:02:20] } 43. a5?! { [%eval 4.04] } { Inaccuracy. Rb1 was best. } { [%clk 0:00:58] } 43... Bb7 { [%eval 4.61] [%clk 0:02:48] } 44. e4 { [%eval 4.93] [%clk 0:00:50] } 44... Rd2 { [%eval 5.47] [%clk 0:03:04] } 45. Bc3 { [%eval 5.2] [%clk 0:01:14] } 45... Rd3 { [%eval 5.95] [%clk 0:02:52] } 46. Rc1? { [%eval 3.0] } { Mistake. Kh2 was best. } { [%clk 0:00:33] } 46... Qg4+ { [%eval 2.93] [%clk 0:01:51] } 47. Kf2 { [%eval 2.79] [%clk 0:01:01] } 47... Qxh4+ { [%eval 2.66] [%clk 0:02:18] } 48. Kg1 { [%eval 2.77] [%clk 0:00:44] } 48... Rd7 { [%eval 2.3] [%clk 0:02:30] } 49. Be1 { [%eval 2.57] [%clk 0:00:35] } 49... Qd8 { [%eval 2.71] [%clk 0:02:52] } 50. Bc3?! { [%eval 1.9] } { Inaccuracy. Kh2 was best. } { [%clk 0:00:36] } 50... Rf7?! { [%eval 2.54] } { Inaccuracy. Ba6 was best. } { [%clk 0:02:24] } 51. Rb1 { [%eval 2.37] [%clk 0:00:34] } 51... Qd3?! { [%eval 3.57] } { Inaccuracy. Bc8 was best. } { [%clk 0:02:44] } 52. Rb6 { [%eval 3.56] [%clk 0:00:37] } 52... h4?! { [%eval 5.11] } { Inaccuracy. Bc8 was best. } { [%clk 0:01:59] } 53. Qd4? { [%eval 2.75] } { Mistake. Rd6 was best. } { [%clk 0:00:53] } 53... Qe2 { [%eval 3.56] [%clk 0:01:58] } 54. Rb2 { [%eval 4.12] [%clk 0:00:45] } 54... Qa6 { [%eval 3.7] [%clk 0:02:18] } 55. Rb6 { [%eval 3.4] [%clk 0:01:01] } 55... Qe2 { [%eval 4.09] [%clk 0:02:43] } 56. Rb2? { [%eval 2.36] } { Mistake. Kh2 was best. } { [%clk 0:01:02] } 56... Qa6 { [%eval 2.71] [%clk 0:03:12] } 57. Qd8 { [%eval 2.22] [%clk 0:00:43] } 57... h3 { [%eval 2.4] [%clk 0:02:30] } 58. Qh4+ { [%eval 1.86] [%clk 0:00:57] } 58... Kg8 { [%eval 1.53] [%clk 0:03:00] } 59. Qd8+ { [%eval 2.23] [%clk 0:00:37] } 59... Kh7 { [%eval 1.68] [%clk 0:02:58] } 60. Qh4+ { [%eval 2.45] [%clk 0:00:37] } 60... Kg8 { [%eval 2.39] [%clk 0:03:28] } 61. Rd2 { [%eval 2.34] [%clk 0:00:34] } 61... Qa7+ { [%eval 2.49] [%clk 0:02:54] } 62. Kh1 { [%eval 2.35] [%clk 0:00:32] } 62... hxg2+ { [%eval 2.81] [%clk 0:02:15] } 63. Kxg2 { [%eval 2.51] [%clk 0:01:01] } 63... Qc5 { [%eval 2.5] [%clk 0:02:24] } 64. Rd8+? { [%eval 1.15] } { Mistake. Qg4 was best. } { [%clk 0:00:53] } 64... Rf8 { [%eval 1.12] [%clk 0:02:54] } 65. Rxf8+ { [%eval 1.16] [%clk 0:01:00] } 65... Qxf8 { [%eval 0.93] [%clk 0:03:23] } 66. Qg5 { [%eval 1.18] [%clk 0:00:50] } 66... Qd6?! { [%eval 1.97] } { Inaccuracy. Qf7 was best. } { [%clk 0:03:11] } 67. Qe5? { [%eval 0.53] } { Mistake. Qb5 was best. } { [%clk 0:00:48] } 67... Qxe5 { [%eval 0.63] [%clk 0:02:23] } 68. Bxe5 { [%eval 0.41] [%clk 0:01:17] } 68... g5 { [%eval 0.68] [%clk 0:02:38] } 69. Kg3 { [%eval 0.61] [%clk 0:01:36] } 69... Kf7 { [%eval 0.47] [%clk 0:03:07] } 70. Bc3 { [%eval 0.59] [%clk 0:01:38] } 70... Kg6 { [%eval 0.48] [%clk 0:02:30] } 71. Bb2 { [%eval 0.47] [%clk 0:01:35] } 71... Kf7 { [%eval 0.53] [%clk 0:02:27] } 72. Bc1 { [%eval 0.4] [%clk 0:01:41] } 72... Kg6 { [%eval 0.38] [%clk 0:02:02] } 73. Be3 { [%eval 0.51] [%clk 0:01:03] } 73... Ba6 { [%eval 0.47] [%clk 0:02:16] } 74. Bb6 { [%eval 0.43] [%clk 0:01:22] } 74... Bb7 { [%eval 0.36] [%clk 0:02:28] } 75. Bd8 { [%eval 0.36] [%clk 0:01:50] } 75... Kh6 { [%eval 0.45] [%clk 0:01:51] } 76. Kf2 { [%eval 0.3] [%clk 0:01:20] } 76... g4 { [%eval 0.28] [%clk 0:01:19] } 77. fxg4 { [%eval 0.13] [%clk 0:01:43] } 77... Bxe4 { [%eval 0.14] [%clk 0:01:48] } 78. Ke3 { [%eval 0.19] [%clk 0:01:25] } 78... Bg2 { [%eval 0.18] [%clk 0:01:54] } 79. Kd4 { [%eval 0.05] [%clk 0:01:43] } 79... Bf3 { [%eval 0.23] [%clk 0:01:44] } 80. g5+ { [%eval 0.1] [%clk 0:02:02] } 80... Kg6 { [%eval 0.25] [%clk 0:02:13] } 81. Kc5 { [%eval 0.19] [%clk 0:00:35] } 81... Kf7 { [%eval 0.09] [%clk 0:02:38] } 82. Kd6 { [%eval 0.1] [%clk 0:00:34] } 82... Ke8 { [%eval 0.0] [%clk 0:02:30] } 83. Bb6 { [%eval 0.01] [%clk 0:00:56] } 83... Be2 { [%eval 0.0] [%clk 0:02:37] } 84. Bd4 { [%eval 0.08] [%clk 0:01:03] } 84... Kd8? { [%eval 1.15] } { Mistake. g6 was best. } { [%clk 0:01:58] } 85. Bxg7 { [%eval 0.95] [%clk 0:01:28] } 85... Kc8 { [%eval 1.51] [%clk 0:02:24] } 86. Be5 { [%eval 1.56] [%clk 0:00:36] } 86... Kb7 { [%eval 0.87] [%clk 0:02:37] } 87. g6 { [%clk 0:00:58] } 87... Bd3 { [%clk 0:02:36] } 88. g7 { [%clk 0:01:26] } 88... Bc4 { [%clk 0:02:42] } 89. Kc5 { [%clk 0:00:49] } 89... Bf7 { [%clk 0:03:03] } 90. g8=Q Bxg8 { [%clk 0:03:28] } 91. a6+ { [%clk 0:01:05] } 91... Kxa6 { [%clk 0:03:56] } 1/2-1/2