Event: Round 4: Costello, Colin A - Clark, Robert G
Site: https://lichess.org/broadcast/2025-british-chess-championships--over-65/round-4/AvkZJ16Z/ZTHuec8y
White: Costello, Colin A
WhiteElo: 1876
Black: Clark, Robert G
BlackElo: 1991
Result: 1/2-1/2
ECO: A29
Opening: English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Nb6
Variant: Standard

1. c4 { [%eval 0.12] [%clk 1:30:52] } 1... e5 { [%eval 0.1] [%clk 1:30:08] } 2. Nc3 { [%eval 0.04] [%clk 1:31:17] } 2... Nf6 { [%eval 0.18] [%clk 1:30:32] } 3. Nf3 { [%eval 0.15] [%clk 1:31:34] } 3... Nc6 { [%eval 0.14] [%clk 1:30:57] } 4. g3 { [%eval 0.07] [%clk 1:31:41] } 4... d5 { [%eval 0.16] [%clk 1:31:13] } 5. cxd5 { [%eval 0.09] [%clk 1:32:04] } 5... Nxd5 { [%eval 0.19] [%clk 1:31:38] } 6. Bg2 { [%eval 0.03] [%clk 1:32:07] } 6... Nb6 { [%eval 0.14] [%clk 1:32:01] } 7. O-O { [%eval 0.15] [%clk 1:30:50] } 7... Be7 { [%eval 0.15] [%clk 1:32:26] } 8. d3 { [%eval 0.12] [%clk 1:31:11] } 8... O-O { [%eval 0.1] [%clk 1:32:47] } 9. Be3 { [%eval 0.11] [%clk 1:31:01] } 9... Be6 { [%eval 0.19] [%clk 1:32:56] } 10. Na4 { [%eval 0.0] [%clk 1:30:50] } 10... Nxa4 { [%eval 0.0] [%clk 1:33:18] } 11. Qxa4 { [%eval 0.06] [%clk 1:31:13] } 11... Bd5 { [%eval 0.15] [%clk 1:33:42] } 12. Rac1 { [%eval 0.1] [%clk 1:28:45] } 12... Re8 { [%eval 0.06] [%clk 1:24:33] } 13. Nd2 { [%eval 0.0] [%clk 1:25:15] } 13... Bxg2 { [%eval 0.0] [%clk 1:14:36] } 14. Kxg2 { [%eval 0.02] [%clk 1:25:36] } 14... Nd4 { [%eval 0.12] [%clk 1:13:55] } 15. Bxd4 { [%eval 0.02] [%clk 1:23:39] } 15... exd4 { [%eval 0.0] [%clk 1:13:38] } 16. Nf3 { [%eval -0.31] [%clk 1:19:28] } 16... Bf6 { [%eval 0.2] [%clk 1:10:16] } 17. Rfe1 { [%eval -0.02] [%clk 1:19:40] } 17... c6 { [%eval -0.09] [%clk 1:08:24] } 18. Qc4 { [%eval -0.07] [%clk 1:18:02] } 18... Qd7 { [%eval -0.19] [%clk 1:05:14] } 19. Nd2 { [%eval -0.43] [%clk 1:16:06] } 19... Bg5 { [%eval -0.23] [%clk 1:00:40] } 20. f4 { [%eval -0.63] [%clk 1:16:15] } 20... Bd8 { [%eval -0.78] [%clk 0:58:31] } 21. Ne4 { [%eval -0.69] [%clk 1:11:49] } 21... Bb6 { [%eval -0.36] [%clk 0:56:42] } 22. f5?! { [%eval -1.15] } { Inaccuracy. a4 was best. } { [%clk 1:04:54] } 22... Rad8 { [%eval -0.66] [%clk 0:49:20] } 23. f6 { [%eval -0.76] [%clk 1:04:11] } 23... g6 { [%eval -0.7] [%clk 0:48:00] } 24. Qb4 { [%eval -0.69] [%clk 0:57:33] } 24... Qf5?! { [%eval 0.29] } { Inaccuracy. h6 was best. } { [%clk 0:36:39] } 25. Rf1 { [%eval 0.0] [%clk 0:52:35] } 25... Qg4 { [%eval 0.27] [%clk 0:33:19] } 26. Qd2 { [%eval 0.3] [%clk 0:46:50] } 26... Qh5 { [%eval 0.07] [%clk 0:20:23] } 27. Rf4 { [%eval 0.01] [%clk 0:44:24] } 27... Qh6 { [%eval 0.0] [%clk 0:19:41] } 28. Qe1 { [%eval -0.28] [%clk 0:34:03] } 28... Rd5 { [%eval -0.34] [%clk 0:16:15] } 29. h4 { [%eval -0.65] [%clk 0:22:26] } 29... Bc7 { [%eval -0.7] [%clk 0:13:02] } 30. Rf1 { [%eval -0.71] [%clk 0:22:25] } 30... Qe3 { [%eval -0.31] [%clk 0:11:29] } 31. Rf3 { [%eval -0.18] [%clk 0:22:21] } 31... Rxe4 { [%eval 0.05] [%clk 0:10:56] } 32. dxe4 { [%eval 0.17] [%clk 0:20:10] } 32... Qxe4 { [%eval 0.11] [%clk 0:11:19] } 33. Qd2 { [%eval 0.13] [%clk 0:17:14] } 33... Bd6 { [%eval 0.33] [%clk 0:10:02] } 34. Qd3 { [%eval 0.41] [%clk 0:17:13] } 34... Qe6 { [%eval 0.41] [%clk 0:08:28] } 35. h5?? { [%eval -2.4] } { Blunder. e4 was best. } { [%clk 0:16:02] } 35... Rxh5 { [%eval -2.51] [%clk 0:06:11] } 36. Rh1 { [%eval -2.46] [%clk 0:15:31] } 36... Rxh1? { [%eval -0.86] } { Mistake. Re5 was best. } { [%clk 0:05:41] } 37. Kxh1 { [%eval -0.81] [%clk 0:15:52] } 37... Be5?! { [%eval -0.25] } { Inaccuracy. c5 was best. } { [%clk 0:04:46] } 38. Qe4 { [%eval -0.25] [%clk 0:15:37] } 38... h5 { [%eval -0.22] [%clk 0:03:32] } 39. Kg2 { [%eval -0.24] [%clk 0:15:35] } 39... Qd6 { [%eval -0.07] [%clk 0:03:04] } 40. Qh4?! { [%eval -0.82] } { Inaccuracy. Ra3 was best. } { [%clk 0:13:42] } 40... c5?! { [%eval -0.27] } { Inaccuracy. b6 was best. } { [%clk 0:01:48] } 41. g4? { [%eval -1.41] } { Mistake. Qe4 was best. } { [%clk 0:11:23] } 41... hxg4 { [%eval -1.87] [%clk 0:00:50] } 42. Qxg4 { [%eval -1.71] [%clk 0:11:40] } 42... Bxf6 { [%eval -1.71] [%clk 0:27:32] } 43. Qc8+ { [%eval -1.54] [%clk 0:42:01] } 43... Kg7 { [%eval -1.41] [%clk 0:27:57] } 44. Qxb7 { [%eval -1.81] [%clk 0:42:22] } 44... Qe6 { [%eval -1.66] [%clk 0:27:02] } 45. Qb5?! { [%eval -2.94] } { Inaccuracy. Kf1 was best. } { [%clk 0:41:17] } 45... Qxa2?? { [%eval 0.0] } { Blunder. a6 was best. } { [%clk 0:25:28] } 46. Qc6 { [%eval 0.0] [%clk 0:40:55] } 46... Qe6 { [%eval 0.0] [%clk 0:24:25] } 47. Qxe6 { [%eval 0.0] [%clk 0:40:55] } 47... fxe6 { [%eval 0.0] [%clk 0:24:51] } 48. Ra3 { [%eval 0.0] [%clk 0:41:17] } 48... Be5 { [%eval 0.0] [%clk 0:24:31] } 49. Rxa7+ { [%eval 0.0] [%clk 0:41:35] } 49... Kf6 { [%eval 0.0] [%clk 0:24:58] } 50. Kf3 { [%eval 0.0] [%clk 0:41:36] } 50... d3 { [%eval 0.0] [%clk 0:21:21] } 51. exd3 { [%eval 0.0] [%clk 0:41:44] } 51... Bxb2 { [%eval 0.03] [%clk 0:21:44] } 52. Ke4 { [%eval 0.07] [%clk 0:41:51] } 52... Bd4 { [%eval 0.0] [%clk 0:21:12] } 53. Ra8 { [%eval 0.0] [%clk 0:42:03] } 53... Kf7 { [%eval 0.0] [%clk 0:19:26] } 1/2-1/2