Event: British Chess Championships 2023: Championship
Site: The Venue, De Montfort University, United Kingdom
Date: 2023-07-25
White: Yao, Lan
WhiteElo: 2242
Black: Willow, Jonah B
BlackElo: 2421
Result: 1/2-1/2
ECO: B40
Opening: Sicilian Defense: Four Knights Variation
Variant: Standard
TimeControl: 40 moves in 90 mins + 30 mins + 30 secondss added from move 1

1. e4 { [%eval 0.36] [%clk 1:30:58] } 1... c5 { [%eval 0.32] [%clk 1:27:55] } 2. Nf3 { [%eval 0.0] [%clk 1:31:21] } 2... e6 { [%eval 0.34] [%clk 1:27:57] } 3. d4 { [%eval 0.42] [%clk 1:31:48] } 3... cxd4 { [%eval 0.37] [%clk 1:28:24] } 4. Nxd4 { [%eval 0.4] [%clk 1:32:16] } 4... Nf6 { [%eval 0.4] [%clk 1:28:33] } 5. Nc3 { [%eval 0.33] [%clk 1:32:37] } 5... Nc6 { [%eval 0.43] [%clk 1:29:00] } 6. Be3 { [%eval 0.0] [%clk 1:33:00] } 6... Bb4 { [%eval 0.0] [%clk 1:29:26] } 7. Bd3 { [%eval -0.04] [%clk 1:33:17] } 7... e5 { [%eval 0.0] [%clk 1:29:52] } 8. Nxc6 { [%eval 0.0] [%clk 1:33:27] } 8... bxc6 { [%eval -0.04] [%clk 1:30:08] } 9. O-O { [%eval 0.0] [%clk 1:33:17] } 9... O-O { [%eval 0.03] [%clk 1:30:24] } 10. a3 { [%eval 0.02] [%clk 1:31:44] } 10... Bxc3 { [%eval 0.03] [%clk 1:29:26] } 11. bxc3 { [%eval 0.0] [%clk 1:32:12] } 11... d5 { [%eval 0.0] [%clk 1:29:48] } 12. f3 { [%eval 0.0] [%clk 1:32:20] } 12... Be6 { [%eval 0.02] [%clk 1:24:49] } 13. Qe1 { [%eval 0.08] [%clk 1:27:32] } 13... Re8 { [%eval 0.16] [%clk 1:22:55] } 14. Qh4 { [%eval 0.08] [%clk 1:23:49] } 14... Qe7 { [%eval 0.41] [%clk 1:09:53] } 15. exd5 { [%eval 0.42] [%clk 0:52:14] } 15... cxd5 { [%eval 0.39] [%clk 0:54:11] } 16. f4 { [%eval 0.06] [%clk 0:51:43] } 16... e4 { [%eval -0.14] [%clk 0:48:08] } 17. Be2 { [%eval -0.29] [%clk 0:51:35] } 17... Ng4 { [%eval 0.03] [%clk 0:46:00] } 18. Qxe7 { [%eval 0.1] [%clk 0:47:28] } 18... Rxe7 { [%eval 0.09] [%clk 0:46:12] } 19. Bxg4 { [%eval 0.08] [%clk 0:43:46] } 19... Bxg4 { [%eval 0.01] [%clk 0:45:34] } 20. h3 { [%eval 0.05] [%clk 0:41:24] } 20... Be2 { [%eval 0.01] [%clk 0:43:43] } 21. Rfe1 { [%eval 0.07] [%clk 0:41:48] } 21... Ba6 { [%eval 0.08] [%clk 0:42:36] } 22. Rab1 { [%eval -0.02] [%clk 0:41:31] } 22... h5 { [%eval 0.0] [%clk 0:41:09] } 23. Rb4 { [%eval 0.0] [%clk 0:39:07] } 23... Rc8 { [%eval 0.0] [%clk 0:36:34] } 24. Bd4 { [%eval -0.09] [%clk 0:38:16] } 24... Rc6 { [%eval 0.0] [%clk 0:34:15] } 25. Kf2 { [%eval 0.0] [%clk 0:26:44] } 25... Kh7 { [%eval 0.16] [%clk 0:29:25] } 26. Rb8 { [%eval 0.02] [%clk 0:24:02] } 26... Bc4?! { [%eval 0.81] } { Inaccuracy. Bc8 was best. } { [%clk 0:23:48] } 27. Reb1?! { [%eval 0.0] } { Inaccuracy. g4 was best. } { [%clk 0:22:12] } 27... Ba6 { [%eval 0.41] [%clk 0:18:55] } 28. Re1 { [%eval 0.0] [%clk 0:21:45] } 28... Bc8 { [%eval 0.0] [%clk 0:13:56] } 29. Rb5 { [%eval 0.01] [%clk 0:20:21] } 29... Rd7 { [%eval 0.43] [%clk 0:13:44] } 30. Reb1 { [%eval 0.0] [%clk 0:17:23] } 30... Ra6 { [%eval 0.29] [%clk 0:10:41] } 31. Rb8 { [%eval 0.02] [%clk 0:16:23] } 31... Rc7 { [%eval 0.03] [%clk 0:10:42] } 32. R1b5 { [%eval 0.01] [%clk 0:14:28] } 32... Be6 { [%eval 0.0] [%clk 0:05:25] } 33. R8b7 { [%eval 0.0] [%clk 0:12:57] } 33... Rac6 { [%eval 0.2] [%clk 0:03:15] } 34. Be5 { [%eval 0.0] [%clk 0:11:31] } 34... Rxb7 { [%eval 0.0] } 35. Rxb7 { [%eval 0.0] [%clk 0:11:59] } 35... Kg6 { [%eval 0.0] [%clk 0:01:50] } 36. Bd4 { [%eval 0.0] [%clk 0:08:25] } 36... a6 { [%eval 0.0] [%clk 0:02:09] } 37. Ke3 { [%eval 0.06] [%clk 0:05:34] } 37... Bc8 { [%eval 0.0] [%clk 0:01:58] } 38. Rb6 { [%eval -0.07] [%clk 0:04:09] } 38... Rxb6 { [%eval -0.08] [%clk 0:01:51] } 39. Bxb6 { [%eval -0.14] [%clk 0:04:38] } 39... Kf5 { [%eval -0.09] [%clk 0:02:12] } 40. Bd4 { [%eval -0.05] [%clk 0:02:29] } 40... f6 { [%eval -0.03] [%clk 0:02:25] } 41. g3 { [%eval -0.07] [%clk 0:26:12] } 41... Bd7 { [%eval -0.04] [%clk 0:32:21] } 42. c4 { [%eval -0.05] [%clk 0:21:01] } 42... dxc4 { [%eval -0.03] [%clk 0:32:16] } 43. c3 { [%eval -0.04] [%clk 0:21:26] } 43... Ba4 { [%eval -0.07] [%clk 0:27:46] } 44. g4+ { [%eval -0.05] [%clk 0:15:37] } 44... hxg4 { [%eval -0.05] [%clk 0:28:11] } 45. hxg4+ { [%eval -0.03] [%clk 0:16:04] } 45... Kxg4 { [%eval -0.04] [%clk 0:28:35] } 46. Kxe4 { [%eval -0.06] [%clk 0:16:32] } 46... Kg3 { [%eval -0.03] [%clk 0:26:41] } 47. Ke3 { [%eval -0.11] [%clk 0:15:55] } 47... Bc2 { [%eval -0.06] [%clk 0:25:40] } 48. Bc5 { [%eval -0.04] [%clk 0:15:41] } 48... g5 { [%eval -0.03] [%clk 0:25:55] } 49. fxg5 { [%eval -0.03] [%clk 0:15:57] } 49... fxg5 { [%eval -0.03] [%clk 0:26:19] } 50. Bd6+ { [%eval -0.02] [%clk 0:15:13] } 50... Kg2 { [%eval -0.04] [%clk 0:26:40] } 51. Kd4 { [%eval -0.01] [%clk 0:08:46] } 51... Bb3 { [%eval -0.04] [%clk 0:18:31] } 52. Kc5 { [%eval -0.03] [%clk 0:08:51] } 52... a5 { [%eval 0.0] [%clk 0:17:33] } 53. a4 { [%eval 0.0] [%clk 0:09:12] } 53... Bxa4 { [%eval 0.0] [%clk 0:17:59] } 54. Kxc4 { [%eval 0.0] [%clk 0:09:38] } 1/2-1/2