Event: Round 5: Sourath Biswas - Sapenov, Daniyal
Date: 2025-03-01
White: Sourath Biswas
WhiteTitle: FM
WhiteElo: 2207
Black: Sapenov, Daniyal
BlackTitle: FM
BlackElo: 2391
Result: 0-1
ECO: A46
Opening: Indian Defense: London System
Variant: Standard

1. Nf3 { [%eval 0.14] [%clk 1:30:54] } 1... Nf6 { [%eval 0.23] [%clk 1:30:46] } 2. d4 { [%eval 0.11] [%clk 1:31:09] } 2... e6 { [%eval 0.14] [%clk 1:31:07] } 3. Bf4 { [%eval 0.03] [%clk 1:31:27] } 3... c5 { [%eval 0.1] [%clk 1:31:30] } 4. e3 { [%eval 0.07] [%clk 1:31:53] } 4... cxd4 { [%eval 0.24] [%clk 1:31:55] } 5. exd4 { [%eval 0.07] [%clk 1:32:19] } 5... b6 { [%eval 0.21] [%clk 1:32:18] } 6. Nbd2 { [%eval 0.13] [%clk 1:32:24] } 6... Be7 { [%eval 0.13] [%clk 1:32:35] } 7. Bd3 { [%eval 0.0] [%clk 1:32:30] } 7... Ba6 { [%eval 0.05] [%clk 1:32:50] } 8. Bxa6 { [%eval 0.13] [%clk 1:32:35] } 8... Nxa6 { [%eval 0.11] [%clk 1:33:14] } 9. Qe2 { [%eval -0.23] [%clk 1:32:35] } 9... Nb4 { [%eval -0.21] [%clk 1:32:36] } 10. Nc4 { [%eval -0.23] [%clk 1:31:41] } 10... O-O { [%eval -0.15] [%clk 1:28:05] } 11. a4 { [%eval -0.16] [%clk 1:12:04] } 11... Rc8 { [%eval -0.12] [%clk 1:24:48] } 12. c3 { [%eval -0.2] [%clk 1:05:15] } 12... Nbd5 { [%eval -0.04] [%clk 1:10:47] } 13. Bd2 { [%eval -0.12] [%clk 1:05:37] } 13... Qc7 { [%eval -0.14] [%clk 1:07:18] } 14. Nce5 { [%eval -0.13] [%clk 1:04:20] } 14... d6 { [%eval -0.13] [%clk 1:04:34] } 15. Nd3 { [%eval -0.17] [%clk 1:04:47] } 15... Qc4 { [%eval -0.05] [%clk 1:01:22] } 16. O-O { [%eval -0.18] [%clk 0:57:08] } 16... h6 { [%eval -0.16] [%clk 1:00:28] } 17. Bc1 { [%eval -0.12] [%clk 0:51:34] } 17... Qa6 { [%eval -0.18] [%clk 0:57:34] } 18. Re1 { [%eval -0.09] [%clk 0:44:34] } 18... Rfe8 { [%eval -0.12] [%clk 0:55:33] } 19. h3 { [%eval -0.16] [%clk 0:37:41] } 19... Bf8 { [%eval -0.15] [%clk 0:54:14] } 20. Qd1 { [%eval -0.21] [%clk 0:38:00] } 20... Qc4 { [%eval -0.19] [%clk 0:51:37] } 21. Qe2 { [%eval -0.2] [%clk 0:36:10] } 21... Qc6 { [%eval -0.17] [%clk 0:48:37] } 22. Nf4 { [%eval -0.17] [%clk 0:28:37] } 22... Qb7 { [%eval -0.04] [%clk 0:38:30] } 23. Nxd5 { [%eval -0.08] [%clk 0:25:36] } 23... Nxd5 { [%eval -0.09] [%clk 0:38:08] } 24. Nd2 { [%eval -0.09] [%clk 0:26:01] } 24... a6 { [%eval -0.12] [%clk 0:36:02] } 25. Qf3 { [%eval -0.11] [%clk 0:23:05] } 25... b5 { [%eval -0.17] [%clk 0:34:41] } 26. axb5 { [%eval -0.13] [%clk 0:23:32] } 26... axb5 { [%eval -0.14] [%clk 0:35:06] } 27. Ne4 { [%eval -0.14] [%clk 0:23:59] } 27... Qd7 { [%eval -0.05] [%clk 0:34:44] } 28. Bd2 { [%eval -0.09] [%clk 0:20:19] } 28... Kh8 { [%eval 0.17] [%clk 0:23:53] } 29. Ra6 { [%eval -0.07] [%clk 0:19:34] } 29... Ra8 { [%eval -0.06] [%clk 0:23:05] } 30. Rea1 { [%eval -0.08] [%clk 0:19:56] } 30... Rxa6 { [%eval -0.08] [%clk 0:21:53] } 31. Rxa6 { [%eval -0.06] [%clk 0:20:23] } 31... Rd8 { [%eval 0.0] [%clk 0:22:13] } 32. Ra5 { [%eval -0.03] [%clk 0:16:46] } 32... Rb8 { [%eval 0.12] [%clk 0:17:57] } 33. Qd3 { [%eval -0.08] [%clk 0:12:43] } 33... Qb7 { [%eval -0.03] [%clk 0:16:35] } 34. Qb1 { [%eval -0.2] [%clk 0:11:28] } 34... f5 { [%eval 0.23] [%clk 0:10:42] } 35. Ng3 { [%eval 0.22] [%clk 0:11:52] } 35... Ra8 { [%eval 0.29] [%clk 0:11:09] } 36. Qa2 { [%eval -0.12] [%clk 0:10:33] } 36... Rxa5 { [%eval -0.15] [%clk 0:11:10] } 37. Qxa5 { [%eval -0.11] [%clk 0:10:59] } 37... Be7 { [%eval -0.02] [%clk 0:11:20] } 38. b3 { [%eval -0.1] [%clk 0:06:47] } 38... Qc6 { [%eval -0.05] [%clk 0:09:57] } 39. Nf1 { [%eval -0.21] [%clk 0:03:47] } 39... Kh7 { [%eval -0.2] [%clk 0:08:35] } 40. Ne3 { [%eval -0.31] [%clk 0:04:13] } 40... Bg5 { [%eval -0.46] [%clk 0:07:57] } 41. Nxd5?? { [%eval -3.24] } { Blunder. Qa1 was best. } { [%clk 0:20:57] } 41... Bxd2 { [%eval -3.23] [%clk 0:35:33] } 42. Ne3 { [%eval -3.6] [%clk 0:21:16] } 42... Bxe3?? { [%eval -0.22] } { Blunder. Bxc3 was best. } { [%clk 0:21:44] } 43. fxe3 { [%eval -0.27] [%clk 0:21:35] } 43... Qe4 { [%eval -0.25] [%clk 0:22:12] } 44. Qxb5 { [%eval -0.36] [%clk 0:16:12] } 44... Qxe3+ { [%eval -0.28] [%clk 0:22:35] } 45. Kh2 { [%eval -0.4] [%clk 0:16:40] } 45... Qxc3 { [%eval -0.65] [%clk 0:22:52] } 46. Qb6 { [%eval -0.69] [%clk 0:17:08] } 46... Qe3?! { [%eval -0.1] } { Inaccuracy. f4 was best. } { [%clk 0:18:53] } 47. b4 { [%eval -0.16] [%clk 0:17:12] } 47... e5 { [%eval -0.07] [%clk 0:16:36] } 48. Qxd6 { [%eval -0.08] [%clk 0:17:35] } 48... exd4 { [%eval -0.1] [%clk 0:15:39] } 49. b5 { [%eval -0.12] [%clk 0:17:43] } 49... d3 { [%eval -0.14] [%clk 0:15:17] } 50. b6 { [%eval -0.15] [%clk 0:18:10] } 50... d2 { [%eval -0.02] [%clk 0:15:25] } 51. b7 { [%eval -0.04] [%clk 0:18:35] } 51... Qb3 { [%eval -0.07] [%clk 0:15:44] } 52. Qxd2 { [%eval -0.1] [%clk 0:18:58] } 52... Qxb7 { [%eval -0.05] [%clk 0:16:10] } 53. Qf4 { [%eval -0.1] [%clk 0:19:17] } 53... Qd5 { [%eval -0.1] [%clk 0:16:26] } 54. g4 { [%eval -0.06] [%clk 0:19:25] } 54... fxg4 { [%eval 0.0] [%clk 0:13:27] } 55. hxg4 { [%eval -0.01] [%clk 0:19:28] } 55... Kg6 { [%eval 0.0] [%clk 0:13:44] } 56. Kg3 { [%eval 0.0] [%clk 0:19:30] } 56... Qd3+ { [%eval 0.0] [%clk 0:13:54] } 57. Kg2 { [%eval 0.0] [%clk 0:19:54] } 57... Qc2+ { [%eval -0.04] [%clk 0:13:51] } 58. Kg3 { [%eval 0.0] [%clk 0:20:17] } 58... Qc3+ { [%eval 0.0] [%clk 0:14:13] } 59. Kg2 { [%eval 0.0] [%clk 0:20:40] } 59... Qf6 { [%eval -0.05] [%clk 0:13:28] } 60. Qe3 { [%eval -0.07] [%clk 0:20:49] } 60... Qc6+ { [%eval -0.02] [%clk 0:13:46] } 61. Kg3 { [%eval -0.01] [%clk 0:21:12] } 61... Qd6+ { [%eval -0.02] [%clk 0:14:01] } 62. Kh3 { [%eval -0.05] [%clk 0:21:34] } 62... Kf7 { [%eval -0.08] [%clk 0:13:14] } 63. Qf3+ { [%eval 0.0] [%clk 0:21:45] } 63... Kg8 { [%eval -0.02] [%clk 0:13:32] } 64. Qe4 { [%eval -0.04] [%clk 0:22:01] } 64... Qf6 { [%eval -0.05] [%clk 0:13:47] } 65. Qe8+ { [%eval -0.13] [%clk 0:22:09] } 65... Kh7 { [%eval -0.02] [%clk 0:14:11] } 66. Qe4+ { [%eval -0.06] [%clk 0:22:36] } 66... Qg6 { [%eval -0.07] [%clk 0:14:35] } 67. Qe5 { [%eval -0.1] [%clk 0:23:02] } 67... Qb1 { [%eval -0.1] [%clk 0:14:33] } 68. Kg2 { [%eval -0.12] [%clk 0:23:12] } 68... Qd3 { [%eval -0.13] [%clk 0:14:56] } 69. Qe6?! { [%eval -0.77] } { Inaccuracy. Kf2 was best. } { [%clk 0:23:28] } 69... Qg6 { [%eval -0.77] [%clk 0:15:06] } 70. Qe2 { [%eval -0.68] [%clk 0:22:07] } 70... h5 { [%eval -0.76] [%clk 0:15:25] } 71. Kh2 { [%eval -0.77] [%clk 0:22:31] } 71... Qxg4 { [%eval -0.78] [%clk 0:15:48] } 72. Qd3+ { [%eval -0.81] [%clk 0:22:59] } 72... Qg6 { [%eval -0.77] [%clk 0:16:09] } 73. Qd4 { [%eval -0.84] [%clk 0:23:21] } 73... Qc2+ { [%eval -0.73] [%clk 0:16:34] } 74. Kh3 { [%eval -0.69] [%clk 0:23:45] } 74... Qf5+ { [%eval -0.62] [%clk 0:16:42] } 75. Kh2 { [%eval -0.58] [%clk 0:24:10] } 75... Qf3 { [%eval -0.66] [%clk 0:16:37] } 76. Qe5 { [%eval -0.63] [%clk 0:24:03] } 76... h4 { [%eval -0.6] [%clk 0:15:20] } 77. Qe6 { [%eval -0.65] [%clk 0:23:55] } 77... Qf4+ { [%eval -0.73] [%clk 0:13:06] } 78. Kg2 { [%eval -0.61] [%clk 0:24:02] } 78... Qg3+ { [%eval -0.66] [%clk 0:12:22] } 79. Kh1 { [%eval -0.71] [%clk 0:24:28] } 79... Qg6 { [%eval -0.68] [%clk 0:12:39] } 80. Qe7 { [%eval -0.6] [%clk 0:24:13] } 80... Qg4 { [%eval -0.67] [%clk 0:12:20] } 81. Qc7?? { [%eval #-29] } { Checkmate is now unavoidable. Qe3 was best. } { [%clk 0:24:32] } 81... Qh3+ { [%eval -73.22] [%clk 0:11:14] } 82. Kg1 { [%eval -65.21] [%clk 0:24:57] } 82... Qg3+ { [%eval -8.44] [%clk 0:11:38] } 0-1