Event: Round 4: Asaduzzaman, Ahad - Siam, Chowdhury
Site: https://lichess.org/broadcast/bangladesh-49th-national-b-chess-championship-2025/round-4/rixKcjsS/MEoFWmAJ
Date: 2025-09-08
White: Asaduzzaman, Ahad
WhiteElo: 1896
Black: Siam, Chowdhury
BlackElo: 1991
Result: 1/2-1/2
ECO: B20
Opening: Sicilian Defense: Staunton-Cochrane Variation
Variant: Standard
TimeControl: 90+30

1. e4 { [%eval 0.18] [%clk 1:30:58] } 1... c5 { [%eval 0.24] [%clk 1:31:00] } 2. c4 { [%eval 0.0] [%clk 1:31:18] } 2... d6 { [%eval 0.07] [%clk 1:31:09] } 3. g3 { [%eval 0.0] [%clk 1:31:32] } 3... b6 { [%eval 0.46] [%clk 1:29:49] } 4. Bg2 { [%eval 0.3] [%clk 1:31:46] } 4... Bb7 { [%eval 0.58] [%clk 1:30:16] } 5. Nc3 { [%eval 0.53] [%clk 1:31:51] } 5... e6 { [%eval 0.69] [%clk 1:29:11] } 6. Nge2 { [%eval 0.73] [%clk 1:31:30] } 6... Nf6 { [%eval 0.64] [%clk 1:25:08] } 7. d4 { [%eval 0.71] [%clk 1:31:18] } 7... cxd4 { [%eval 0.75] [%clk 1:24:51] } 8. Nxd4 { [%eval 0.66] [%clk 1:31:39] } 8... a6 { [%eval 0.97] [%clk 1:24:13] } 9. Be3 { [%eval 0.73] [%clk 1:30:16] } 9... Nbd7 { [%eval 0.79] [%clk 1:22:37] } 10. Qe2 { [%eval 0.59] [%clk 1:29:03] } 10... Be7 { [%eval 0.71] [%clk 1:20:18] } 11. h3 { [%eval 0.27] [%clk 1:28:49] } 11... Qc7 { [%eval 0.38] [%clk 1:20:01] } 12. O-O { [%eval 0.4] [%clk 1:27:28] } 12... O-O { [%eval 0.41] [%clk 1:15:42] } 13. Rac1 { [%eval 0.32] [%clk 1:27:50] } 13... Rac8 { [%eval 0.47] [%clk 1:14:56] } 14. b3 { [%eval 0.29] [%clk 1:28:12] } 14... Rfe8 { [%eval 0.27] [%clk 1:01:21] } 15. Rfe1 { [%eval 0.07] [%clk 1:25:45] } 15... Ba8 { [%eval 0.24] [%clk 0:55:02] } 16. Qd2 { [%eval 0.17] [%clk 1:11:55] } 16... Nc5 { [%eval 0.2] [%clk 0:50:06] } 17. f3 { [%eval 0.2] [%clk 1:06:03] } 17... Qb8 { [%eval 0.23] [%clk 0:44:12] } 18. Bf2 { [%eval 0.05] [%clk 1:05:48] } 18... Bf8 { [%eval 0.2] [%clk 0:38:05] } 19. g4 { [%eval 0.31] [%clk 1:05:04] } 19... h6 { [%eval 0.24] [%clk 0:36:24] } 20. Bg3 { [%eval 0.26] [%clk 1:03:42] } 20... Qb7 { [%eval 0.41] [%clk 0:33:34] } 21. Kh2 { [%eval 0.4] [%clk 1:01:26] } 21... Red8 { [%eval 0.41] [%clk 0:26:37] } 22. Qe3 { [%eval 0.37] [%clk 0:59:24] } 22... g6 { [%eval 0.4] [%clk 0:18:49] } 23. Rcd1 { [%eval 0.44] [%clk 0:57:04] } 23... e5 { [%eval 0.53] [%clk 0:16:28] } 24. Nc2 { [%eval 0.53] [%clk 0:56:37] } 24... b5 { [%eval 0.6] [%clk 0:15:28] } 25. Bf1 { [%eval 0.62] [%clk 0:56:25] } 25... Ne6 { [%eval 0.75] [%clk 0:14:09] } 26. Rd2 { [%eval 0.45] [%clk 0:54:51] } 26... b4? { [%eval 1.88] } { Mistake. Nf4 was best. } { [%clk 0:10:36] } 27. Nd5 { [%eval 1.96] [%clk 0:55:05] } 27... Nxd5 { [%eval 2.11] [%clk 0:10:44] } 28. exd5 { [%eval 2.03] [%clk 0:55:17] } 28... Nc5 { [%eval 1.9] [%clk 0:10:24] } 29. Bg2 { [%eval 1.52] [%clk 0:51:07] } 29... Bg7 { [%eval 2.0] [%clk 0:10:03] } 30. Rde2 { [%eval 1.68] [%clk 0:51:06] } 30... a5 { [%eval 1.74] [%clk 0:09:42] } 31. f4 { [%eval 1.57] [%clk 0:49:16] } 31... f6 { [%eval 2.1] [%clk 0:07:48] } 32. f5 { [%eval 1.87] [%clk 0:48:01] } 32... g5 { [%eval 1.87] [%clk 0:08:08] } 33. Be4 { [%eval 1.73] [%clk 0:44:45] } 33... Qb6 { [%eval 1.71] [%clk 0:07:36] } 34. Bf2 { [%eval 1.72] [%clk 0:45:02] } 34... Bb7 { [%eval 1.79] [%clk 0:07:24] } 35. Qd2 { [%eval 1.73] [%clk 0:44:58] } 35... Rb8 { [%eval 1.86] [%clk 0:05:52] } 36. Kg3 { [%eval 1.78] [%clk 0:44:23] } 36... Kf7 { [%eval 1.58] [%clk 0:05:26] } 37. Bg2 { [%eval 1.53] [%clk 0:43:59] } 37... Bc8 { [%eval 1.58] [%clk 0:05:39] } 38. Bxc5 { [%eval 1.44] [%clk 0:43:26] } 38... Qxc5 { [%eval 1.32] [%clk 0:05:42] } 39. Qe3 { [%eval 1.0] [%clk 0:43:55] } 39... Qc7 { [%eval 1.03] [%clk 0:05:37] } 40. Rh1 { [%eval 0.97] [%clk 0:39:49] } 40... Bd7 { [%eval 1.36] [%clk 0:05:28] } 41. h4? { [%eval 0.13] } { Mistake. Bf3 was best. } { [%clk 0:39:18] } 41... Rh8?! { [%eval 0.95] } { Inaccuracy. gxh4+ was best. } { [%clk 0:05:21] } 42. Bf3?! { [%eval 0.0] } { Inaccuracy. hxg5 was best. } { [%clk 0:38:13] } 42... Qb6? { [%eval 1.5] } { Mistake. gxh4+ was best. } { [%clk 0:04:12] } 43. Qxb6 { [%clk 0:35:46] } 43... Rxb6 { [%clk 0:04:41] } 44. hxg5 { [%clk 0:36:03] } 44... hxg5 { [%clk 0:05:10] } 45. Rxh8 { [%clk 0:36:31] } 45... Bxh8 { [%clk 0:05:39] } 46. Ne1 { [%clk 0:35:51] } 46... Bg7 { [%clk 0:05:42] } 47. Nd3 { [%clk 0:35:38] } 47... Bf8 { [%clk 0:05:57] } 48. Rc2 { [%clk 0:35:51] } 48... Rb8 { [%clk 0:04:41] } 49. Be4 { [%clk 0:34:55] } 49... Rc8 { [%clk 0:04:21] } 50. Kf3 { [%clk 0:33:17] } 50... Be7 { [%clk 0:04:32] } 51. Rh2 { [%clk 0:33:34] } 51... Kg7 { [%clk 0:04:52] } 52. Ke3 { [%clk 0:33:43] } 52... Bd8 { [%clk 0:05:17] } 53. Kd2 { [%clk 0:33:48] } 53... Bb6 { [%clk 0:05:39] } 54. Kc2 { [%clk 0:31:10] } 54... Bb5 { [%clk 0:04:23] } 55. Kb1 { [%clk 0:30:58] } 55... Bd7 { [%clk 0:04:20] } 56. Nc1 { [%clk 0:27:38] } 56... Bd4 { [%clk 0:04:09] } 57. Ne2 { [%clk 0:27:58] } 57... Bc5 { [%clk 0:04:34] } 58. Ng3 { [%clk 0:27:56] } 58... Ra8 { [%clk 0:03:35] } 59. Bc2 { [%clk 0:27:22] } 59... Ra6 { [%clk 0:02:20] } 60. Nh5+ { [%clk 0:25:48] } 60... Kf7 { [%clk 0:02:45] } 61. Ng3 { [%clk 0:25:15] } 61... Kg7 { [%clk 0:03:13] } 62. Ne4 { [%clk 0:25:19] } 62... Bd4 { [%clk 0:03:07] } 63. Bd3 { [%clk 0:25:34] } 63... Rb6 { [%clk 0:03:03] } 64. Rc2 { [%clk 0:24:45] } 64... Bc5 { [%clk 0:01:53] } 65. Nxc5 { [%clk 0:24:48] } 65... dxc5 { [%clk 0:02:21] } 66. Be4 { [%clk 0:24:48] } 66... Rb8 { [%clk 0:01:27] } 67. Rh2 { [%clk 0:25:06] } 67... a4 { [%clk 0:01:26] } 68. Kb2 { [%clk 0:25:07] } 68... a3+ { [%clk 0:00:58] } 69. Kc2 { [%clk 0:25:33] } 69... Rb6 { [%clk 0:01:17] } 70. Kd2 { [%clk 0:25:06] } 70... Rd6 { [%clk 0:01:16] } 71. Ke3 { [%clk 0:25:28] } 71... Be8 { [%clk 0:01:43] } 72. Bc2 { [%clk 0:25:29] } 72... Bf7 { [%clk 0:01:57] } 73. Rd2 { [%clk 0:25:47] } 73... Be8 { [%clk 0:02:25] } 74. Rh2 { [%clk 0:25:44] } 74... Bf7 { [%clk 0:02:53] } 1/2-1/2