Event: British Chess Championships 2023: Championship
Site: The Venue, De Montfort University, United Kingdom
Date: 2023-07-25
White: Merriman, John
WhiteElo: 2274
Black: Smith, Olivia
BlackElo: 2042
Result: 1-0
ECO: E81
Opening: King's Indian Defense: Steiner Attack
Variant: Standard
TimeControl: 40 moves in 90 mins + 30 mins + 30 secondss added from move 1

1. d4 { [%eval 0.0] [%clk 1:29:56] } 1... Nf6 { [%eval 0.28] [%clk 1:30:49] } 2. c4 { [%eval 0.16] [%clk 1:29:53] } 2... g6 { [%eval 0.3] [%clk 1:31:09] } 3. f3 { [%eval 0.01] [%clk 1:29:52] } 3... d6?! { [%eval 0.59] } { Inaccuracy. c5 was best. } { [%clk 1:30:27] } 4. e4 { [%eval 0.39] [%clk 1:29:33] } 4... Bg7 { [%eval 0.5] [%clk 1:30:30] } 5. Nc3 { [%eval 0.5] [%clk 1:29:28] } 5... O-O { [%eval 0.47] [%clk 1:30:10] } 6. Bg5 { [%eval 0.12] [%clk 1:29:52] } 6... Nc6 { [%eval 0.38] [%clk 1:28:42] } 7. Nge2 { [%eval 0.33] [%clk 1:27:00] } 7... a6 { [%eval 0.26] [%clk 1:28:03] } 8. Qd2 { [%eval 0.42] [%clk 1:25:46] } 8... Na5 { [%eval 0.39] [%clk 1:27:39] } 9. Nc1 { [%eval 0.42] [%clk 1:15:38] } 9... c5 { [%eval 0.36] [%clk 1:27:03] } 10. d5 { [%eval 0.29] [%clk 1:15:36] } 10... b5 { [%eval 0.51] [%clk 1:26:58] } 11. cxb5 { [%eval 0.57] [%clk 1:13:18] } 11... Nd7 { [%eval 0.46] [%clk 1:26:48] } 12. Rb1?! { [%eval -0.25] } { Inaccuracy. Bh6 was best. } { [%clk 1:06:10] } 12... Ne5 { [%eval -0.34] [%clk 1:24:09] } 13. b3 { [%eval -0.32] [%clk 1:02:43] } 13... axb5? { [%eval 0.79] } { Mistake. f5 was best. } { [%clk 1:15:44] } 14. Bxb5 { [%eval 0.79] [%clk 0:58:07] } 14... c4?! { [%eval 1.46] } { Inaccuracy. f5 was best. } { [%clk 0:59:10] } 15. b4 { [%eval 1.31] [%clk 0:49:01] } 15... Nb7?! { [%eval 2.28] } { Inaccuracy. f5 was best. } { [%clk 0:57:38] } 16. a4 { [%eval 2.33] [%clk 0:45:06] } 16... Bd7 { [%eval 2.31] [%clk 0:53:59] } 17. Bxd7 { [%eval 2.4] [%clk 0:44:14] } 17... Qxd7 { [%eval 2.42] [%clk 0:54:23] } 18. O-O { [%eval 2.41] [%clk 0:42:54] } 18... Rfc8 { [%eval 2.75] [%clk 0:46:49] } 19. a5 { [%eval 2.66] [%clk 0:40:45] } 19... Nd8 { [%eval 3.21] [%clk 0:43:35] } 20. Be3 { [%eval 3.19] [%clk 0:39:01] } 20... h5 { [%eval 3.58] [%clk 0:37:52] } 21. h3 { [%eval 3.11] [%clk 0:35:14] } 21... f6?! { [%eval 4.53] } { Inaccuracy. f5 was best. } { [%clk 0:33:50] } 22. f4 { [%eval 4.51] [%clk 0:34:19] } 22... Nef7 { [%eval 4.47] [%clk 0:33:37] } 23. N1e2 { [%eval 4.35] [%clk 0:34:03] } 23... e5 { [%eval 5.21] [%clk 0:28:20] } 24. f5 { [%eval 5.23] [%clk 0:31:26] } 24... g5 { [%eval 5.3] [%clk 0:28:09] } 25. Ra1 { [%eval 5.26] [%clk 0:31:12] } 25... g4 { [%eval 5.25] [%clk 0:20:38] } 26. h4 { [%eval 5.33] [%clk 0:30:55] } 26... Kh7 { [%eval 5.2] [%clk 0:19:08] } 27. Na4 { [%eval 5.5] [%clk 0:29:14] } 27... Qb5 { [%eval 5.55] [%clk 0:15:07] } 28. Nb6 { [%eval 5.53] [%clk 0:23:03] } 28... c3 { [%eval 5.65] [%clk 0:15:18] } 29. Nxc3 { [%eval 5.74] [%clk 0:23:20] } 29... Qxb4 { [%eval 5.61] [%clk 0:14:53] } 30. Nxc8 { [%eval 6.1] [%clk 0:23:12] } 30... Rxc8 { [%eval 5.8] [%clk 0:15:13] } 31. Rfc1 { [%eval 5.75] [%clk 0:22:01] } 31... g3 { [%eval 5.7] [%clk 0:14:15] } 32. a6 { [%eval 6.75] [%clk 0:15:40] } 32... Rxc3 { [%eval 9.61] [%clk 0:10:45] } 33. Rxc3 { [%eval 9.5] [%clk 0:15:56] } 33... Qxe4 { [%eval 9.61] [%clk 0:11:04] } 34. a7 { [%eval 9.42] [%clk 0:12:50] } 34... Qxh4 { [%eval 10.34] [%clk 0:10:26] } 35. Kf1 { [%eval 8.48] [%clk 0:12:57] } 35... Ng5 { [%eval 10.52] [%clk 0:05:45] } 36. a8=Q { [%eval 10.84] [%clk 0:10:40] } 36... Ne4 { [%eval 12.76] [%clk 0:05:16] } 37. Qd3 { [%eval 13.08] [%clk 0:09:02] } 37... Nf7 { [%eval 16.95] [%clk 0:02:07] } 38. Qe8 { [%eval 16.27] [%clk 0:07:35] } 38... Nf2?! { [%eval #6] } { Checkmate is now unavoidable. Neg5 was best. } { [%clk 0:00:37] } 39. Bxf2 { [%eval #7] [%clk 0:07:32] } 39... gxf2 { [%eval #6] [%clk 0:01:02] } 40. Qh3 { [%eval #5] [%clk 0:07:15] } 1-0