Event: Round 5: Yoon, Jacob D - Kalavannan, Koby
Site: https://lichess.org/broadcast/2025-british-chess-championships--championship/round-5/HkaIHrs4/ucLQexba
White: Yoon, Jacob D
WhiteTitle: CM
WhiteElo: 2203
Black: Kalavannan, Koby
BlackTitle: FM
BlackElo: 2323
Result: 0-1
ECO: B32
Opening: Sicilian Defense: Godiva Variation
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:29:15] } 1... c5 { [%eval 0.24] [%clk 1:29:42] } 2. Nf3 { [%eval 0.2] [%clk 1:29:26] } 2... Nc6 { [%eval 0.3] [%clk 1:29:51] } 3. d4 { [%eval 0.27] [%clk 1:29:44] } 3... cxd4 { [%eval 0.27] [%clk 1:30:10] } 4. Nxd4 { [%eval 0.21] [%clk 1:30:07] } 4... Qb6 { [%eval 0.52] [%clk 1:30:15] } 5. Nb3 { [%eval 0.41] [%clk 1:29:47] } 5... Nf6 { [%eval 0.66] [%clk 1:30:32] } 6. Nc3 { [%eval 0.67] [%clk 1:30:11] } 6... e6 { [%eval 0.5] [%clk 1:30:45] } 7. a3 { [%eval 0.44] [%clk 1:29:26] } 7... Be7 { [%eval 0.57] [%clk 1:30:32] } 8. Be3 { [%eval 0.71] [%clk 1:29:26] } 8... Qc7 { [%eval 0.87] [%clk 1:30:34] } 9. f4 { [%eval 0.81] [%clk 1:29:27] } 9... d6 { [%eval 1.06] [%clk 1:23:49] } 10. g4 { [%eval 0.99] [%clk 1:27:32] } 10... d5 { [%eval 0.93] [%clk 1:20:05] } 11. e5 { [%eval 0.91] [%clk 1:27:51] } 11... Nd7 { [%eval 0.92] [%clk 1:19:10] } 12. Nb5 { [%eval 1.09] [%clk 1:28:05] } 12... Qb8 { [%eval 0.96] [%clk 1:18:45] } 13. h4 { [%eval 1.12] [%clk 1:28:31] } 13... a6 { [%eval 1.0] [%clk 1:16:18] } 14. N5d4 { [%eval 0.98] [%clk 1:28:41] } 14... Qc7 { [%eval 1.06] [%clk 1:13:19] } 15. Rc1? { [%eval -0.16] } { Mistake. Rh3 was best. } { [%clk 1:01:05] } 15... Nxd4 { [%eval 0.12] [%clk 1:04:44] } 16. Nxd4 { [%eval 0.01] [%clk 1:00:03] } 16... Nb6 { [%eval 0.02] [%clk 1:04:03] } 17. c3 { [%eval -0.15] [%clk 0:40:15] } 17... Bd7 { [%eval -0.17] [%clk 0:55:35] } 18. Bd3 { [%eval -0.35] [%clk 0:38:50] } 18... Nc4 { [%eval -0.41] [%clk 0:41:22] } 19. Qe2 { [%eval -0.48] [%clk 0:38:32] } 19... h5?! { [%eval 0.28] } { Inaccuracy. f6 was best. } { [%clk 0:40:46] } 20. gxh5 { [%eval 0.28] [%clk 0:34:35] } 20... Nxe3 { [%eval 0.39] [%clk 0:38:26] } 21. Qxe3 { [%eval 0.21] [%clk 0:35:00] } 21... Rxh5 { [%eval 0.19] [%clk 0:38:32] } 22. Qg3 { [%eval 0.2] [%clk 0:34:39] } 22... Bf8 { [%eval 0.25] [%clk 0:30:21] } 23. Qg4 { [%eval -0.01] [%clk 0:23:56] } 23... Rh6 { [%eval 0.22] [%clk 0:29:11] } 24. Kd2 { [%eval -0.14] [%clk 0:23:49] } 24... Qb6 { [%eval 0.0] [%clk 0:29:05] } 25. b4 { [%eval 0.0] [%clk 0:19:25] } 25... O-O-O { [%eval 0.0] [%clk 0:26:37] } 26. h5 { [%eval 0.0] [%clk 0:19:13] } 26... Kb8 { [%eval 0.09] [%clk 0:25:11] } 27. f5?! { [%eval -0.48] } { Inaccuracy. Qg1 was best. } { [%clk 0:12:32] } 27... Qc7 { [%eval -0.58] [%clk 0:22:22] } 28. Rhe1?! { [%eval -1.33] } { Inaccuracy. fxe6 was best. } { [%clk 0:12:50] } 28... exf5 { [%eval -1.61] [%clk 0:21:49] } 29. Bxf5 { [%eval -1.45] [%clk 0:13:11] } 29... g6?! { [%eval -0.61] } { Inaccuracy. Bxf5 was best. } { [%clk 0:21:35] } 30. hxg6?? { [%eval -4.26] } { Blunder. Bxd7 was best. } { [%clk 0:10:19] } 30... Rxg6 { [%eval -4.25] [%clk 0:19:37] } 31. Qf3 { [%eval -4.48] [%clk 0:06:29] } 31... Bh6+ { [%eval -4.43] [%clk 0:19:47] } 32. Kc2 { [%eval -4.34] [%clk 0:06:55] } 32... Bxf5+ { [%eval -4.29] [%clk 0:17:19] } 33. Nxf5 { [%eval -4.27] [%clk 0:06:27] } 33... Bxc1 { [%eval -4.25] [%clk 0:17:22] } 34. Kxc1 { [%eval -4.97] [%clk 0:06:55] } 34... Rc6 { [%eval -4.71] [%clk 0:14:48] } 35. Kb2 { [%eval -4.77] [%clk 0:07:17] } 35... d4 { [%eval -4.6] [%clk 0:14:34] } 36. Nd6 { [%eval -5.19] [%clk 0:05:56] } 36... Rxc3 { [%eval -5.11] [%clk 0:12:09] } 37. Qxf7 { [%eval -5.02] [%clk 0:06:21] } 37... Rd7 { [%eval -4.52] [%clk 0:08:49] } 38. e6?? { [%eval #-15] } { Checkmate is now unavoidable. Qg8+ was best. } { [%clk 0:05:12] } 38... Rxf7 { [%eval #-9] [%clk 0:09:08] } 39. exf7 { [%eval #-9] [%clk 0:05:38] } 39... Qxd6 { [%eval #-19] [%clk 0:09:30] } 40. Re8+ { [%eval #-22] [%clk 0:06:04] } 40... Rc8 { [%eval -11.84] [%clk 0:09:56] } 0-1