Event: Round 1: Dasgupta, Avyukt - Siva Mahadevan
Site: https://lichess.org/broadcast/2025-british-chess-championships--championship/round-1/Rus7vgww/gvqB7OII
White: Dasgupta, Avyukt
WhiteElo: 2158
Black: Siva Mahadevan
BlackTitle: IM
BlackElo: 2416
Result: 1/2-1/2
ECO: D00
Opening: Queen's Pawn Game: Accelerated London System, Steinitz Countergambit Accepted
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:30:58] } 1... d5 { [%eval 0.2] [%clk 1:30:36] } 2. Bf4 { [%eval 0.0] [%clk 1:31:21] } 2... c5 { [%eval 0.06] [%clk 1:27:33] } 3. dxc5 { [%eval 0.0] [%clk 1:31:17] } 3... e6 { [%eval 0.0] [%clk 1:26:45] } 4. e4 { [%eval 0.0] [%clk 1:31:09] } 4... Bxc5 { [%eval 0.0] [%clk 1:26:03] } 5. Nc3 { [%eval 0.0] [%clk 1:31:27] } 5... Ne7 { [%eval 0.02] [%clk 1:22:33] } 6. exd5 { [%eval 0.0] [%clk 1:25:27] } 6... exd5 { [%eval 0.21] [%clk 1:19:12] } 7. Qd2 { [%eval -0.25] [%clk 1:22:23] } 7... O-O { [%eval -0.15] [%clk 1:18:35] } 8. O-O-O { [%eval -0.17] [%clk 1:22:31] } 8... Nbc6 { [%eval -0.04] [%clk 1:17:59] } 9. Nxd5 { [%eval -0.04] [%clk 1:18:59] } 9... Nxd5 { [%eval -0.01] [%clk 1:15:26] } 10. Qxd5 { [%eval -0.05] [%clk 1:19:20] } 10... Qb6?! { [%eval 0.79] } { Inaccuracy. Qxd5 was best. } { [%clk 1:12:06] } 11. Qb3?! { [%eval -0.08] } { Inaccuracy. Bc7 was best. } { [%clk 1:13:53] } 11... Nb4 { [%eval 0.0] [%clk 1:10:29] } 12. a3 { [%eval 0.0] [%clk 1:12:01] } 12... Be6 { [%eval -0.01] [%clk 1:10:16] } 13. Bc4?! { [%eval -0.64] } { Inaccuracy. c4 was best. } { [%clk 1:09:24] } 13... Bxc4 { [%eval -0.8] [%clk 1:05:49] } 14. Qxc4 { [%eval -0.78] [%clk 1:09:38] } 14... Nxc2 { [%eval -0.77] [%clk 1:05:27] } 15. Qxc2 { [%eval -0.76] [%clk 1:06:22] } 15... Rac8 { [%eval -0.51] [%clk 1:05:39] } 16. Bd2 { [%eval -0.5] [%clk 0:56:48] } 16... Be3 { [%eval 0.0] [%clk 0:39:57] } 17. Bxe3 { [%eval 0.0] [%clk 0:57:08] } 17... Rxc2+ { [%eval 0.0] [%clk 0:40:14] } 18. Kxc2 { [%eval 0.0] [%clk 0:57:32] } 18... Qg6+ { [%eval 0.0] [%clk 0:40:35] } 19. Kb3 { [%eval 0.0] [%clk 0:56:29] } 19... Qe6+ { [%eval 0.0] [%clk 0:36:40] } 20. Kc2 { [%eval 0.0] [%clk 0:56:01] } 20... Qe4+ { [%eval 0.0] [%clk 0:29:47] } 21. Kb3 { [%eval 0.0] [%clk 0:55:53] } 21... Qe6+ { [%eval 0.0] [%clk 0:22:28] } 22. Kc2 { [%eval 0.0] [%clk 0:56:12] } 22... Qe4+ { [%eval 0.0] [%clk 0:22:49] } 23. Kb3 { [%eval 0.0] [%clk 0:56:32] } 23... b5 { [%eval 0.0] [%clk 0:11:41] } 24. Ka2 { [%eval 0.0] [%clk 0:53:48] } 24... b4 { [%eval 0.0] [%clk 0:12:09] } 25. axb4? { [%eval -1.41] } { Mistake. Nf3 was best. } { [%clk 0:51:26] } 25... a5 { [%eval -1.38] [%clk 0:12:34] } 26. Nf3 { [%eval -1.41] [%clk 0:42:25] } 26... axb4 { [%eval -1.34] [%clk 0:12:55] } 27. Nd4 { [%eval -1.55] [%clk 0:38:02] } 27... Ra8+ { [%eval -1.39] [%clk 0:10:37] } 28. Kb3 { [%eval -1.47] [%clk 0:38:26] } 28... Rc8?? { [%eval 0.47] } { Blunder. f5 was best. } { [%clk 0:10:15] } 29. Rc1 { [%eval 0.51] [%clk 0:32:31] } 29... Qd3+?! { [%eval 1.07] } { Inaccuracy. Qd5+ was best. } { [%clk 0:06:36] } 30. Kxb4 { [%eval 1.13] [%clk 0:30:31] } 30... Rb8+ { [%eval 1.17] [%clk 0:06:53] } 31. Kc5 { [%eval 1.04] [%clk 0:27:24] } 31... Rxb2 { [%eval 0.96] [%clk 0:06:29] } 32. Kd5? { [%eval -0.17] } { Mistake. Rhd1 was best. } { [%clk 0:26:36] } 32... h6?! { [%eval 0.72] } { Inaccuracy. Rb8 was best. } { [%clk 0:06:21] } 33. Rc8+ { [%eval 0.73] [%clk 0:26:03] } 33... Kh7 { [%eval 0.71] [%clk 0:06:50] } 34. Rhc1 { [%eval 0.84] [%clk 0:26:14] } 34... f5? { [%eval 2.03] } { Mistake. Qg6 was best. } { [%clk 0:06:10] } 35. g3 { [%eval 2.01] [%clk 0:24:54] } 35... Qe4+ { [%eval 2.6] [%clk 0:05:30] } 36. Kd6 { [%eval 2.62] [%clk 0:24:25] } 1/2-1/2