Event: Round 4: Nelson, Jonathan P - Ortiz Sanchez, Luis
Site: https://lichess.org/broadcast/2025-british-chess-championships--major-open/round-4/SyrHmm10/9GOnFXdW
White: Nelson, Jonathan P
WhiteTitle: FM
WhiteElo: 2114
Black: Ortiz Sanchez, Luis
BlackElo: 1908
Result: 0-1
ECO: D05
Opening: Queen's Pawn Game: Colle System, Traditional Colle
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:30:58] } 1... d5 { [%eval 0.2] [%clk 1:30:43] } 2. Nf3 { [%eval 0.08] [%clk 1:31:19] } 2... Nf6 { [%eval 0.11] [%clk 1:30:40] } 3. e3 { [%eval 0.0] [%clk 1:31:42] } 3... e6 { [%eval 0.1] [%clk 1:30:50] } 4. Bd3 { [%eval 0.03] [%clk 1:32:06] } 4... c5 { [%eval 0.07] [%clk 1:30:59] } 5. c3 { [%eval -0.02] [%clk 1:32:30] } 5... b6 { [%eval -0.03] [%clk 1:29:39] } 6. O-O { [%eval -0.08] [%clk 1:32:45] } 6... Bb7 { [%eval 0.0] [%clk 1:30:01] } 7. Nbd2 { [%eval -0.01] [%clk 1:32:52] } 7... Be7 { [%eval 0.0] [%clk 1:29:25] } 8. Ne5 { [%eval -0.13] [%clk 1:30:24] } 8... Nbd7 { [%eval -0.21] [%clk 1:29:11] } 9. f4 { [%eval -0.17] [%clk 1:29:49] } 9... O-O { [%eval -0.18] [%clk 1:28:02] } 10. Qf3 { [%eval -0.23] [%clk 1:26:50] } 10... Ne8 { [%eval -0.1] [%clk 1:18:48] } 11. Qh3 { [%eval -0.26] [%clk 1:19:39] } 11... f5 { [%eval -0.25] [%clk 1:17:41] } 12. g4 { [%eval -0.28] [%clk 1:13:40] } 12... Nd6 { [%eval -0.24] [%clk 1:11:23] } 13. gxf5 { [%eval -0.52] [%clk 1:05:14] } 13... exf5 { [%eval 0.0] [%clk 1:11:49] } 14. Ndf3?! { [%eval -0.57] } { Inaccuracy. Rf2 was best. } { [%clk 1:04:41] } 14... Ne4 { [%eval -0.52] [%clk 1:11:01] } 15. Bd2 { [%eval -0.81] [%clk 0:51:31] } 15... Nxe5 { [%eval -0.95] [%clk 0:45:14] } 16. fxe5?! { [%eval -1.6] } { Inaccuracy. Bxe4 was best. } { [%clk 0:49:10] } 16... c4 { [%eval -1.44] [%clk 0:41:40] } 17. Bc2 { [%eval -1.3] [%clk 0:47:38] } 17... Bc8 { [%eval -1.2] [%clk 0:36:30] } 18. Qg2 { [%eval -1.31] [%clk 0:43:35] } 18... Qe8 { [%eval -1.12] [%clk 0:28:05] } 19. Kh1 { [%eval -1.04] [%clk 0:36:39] } 19... Qh5 { [%eval -1.03] [%clk 0:25:38] } 20. Rg1 { [%eval -1.53] [%clk 0:34:47] } 20... g6 { [%eval -1.69] [%clk 0:25:31] } 21. Raf1 { [%eval -1.57] [%clk 0:22:31] } 21... Be6 { [%eval -1.13] [%clk 0:12:22] } 22. Bd1?! { [%eval -1.84] } { Inaccuracy. h4 was best. } { [%clk 0:20:29] } 22... Qh6 { [%eval -1.77] [%clk 0:12:46] } 23. h4 { [%eval -1.85] [%clk 0:16:27] } 23... Kh8?! { [%eval -1.21] } { Inaccuracy. Bxh4 was best. } { [%clk 0:12:12] } 24. Qh2 { [%eval -1.41] [%clk 0:15:58] } 24... Rg8 { [%eval -0.94] [%clk 0:12:18] } 25. Bc1 { [%eval -0.75] [%clk 0:14:38] } 25... Rg7 { [%eval -0.38] [%clk 0:11:08] } 26. Rg2 { [%eval -0.55] [%clk 0:11:15] } 26... Rag8 { [%eval -0.57] [%clk 0:11:35] } 27. Bc2 { [%eval -0.75] [%clk 0:09:24] } 27... Qh5?! { [%eval -0.19] } { Inaccuracy. Rf7 was best. } { [%clk 0:11:39] } 28. Bxe4? { [%eval -1.41] } { Mistake. Bd2 was best. } { [%clk 0:07:51] } 28... fxe4 { [%eval -1.54] [%clk 0:10:44] } 29. Ng5 { [%eval -1.45] [%clk 0:08:19] } 29... Bf5 { [%eval -1.14] [%clk 0:07:10] } 30. e6?? { [%eval -3.15] } { Blunder. b3 was best. } { [%clk 0:08:00] } 30... h6 { [%eval -3.08] [%clk 0:07:08] } 31. Nf7+ { [%eval -3.23] [%clk 0:07:09] } 31... Kh7 { [%eval -3.21] [%clk 0:07:38] } 32. Qe5 { [%eval -3.57] [%clk 0:06:39] } 32... Bg4?? { [%eval -1.22] } { Blunder. Bh3 was best. } { [%clk 0:06:54] } 33. Rh2?? { [%eval -5.24] } { Blunder. Nxh6 was best. } { [%clk 0:04:49] } 33... Bf3+ { [%eval -4.77] [%clk 0:06:41] } 34. Kg1?? { [%eval #-4] } { Checkmate is now unavoidable. Rg2 was best. } { [%clk 0:05:12] } 34... Qg4+ { [%eval #-3] [%clk 0:06:59] } 35. Kf2 { [%eval #-3] [%clk 0:05:11] } 35... Bxh4+ { [%eval #-2] [%clk 0:07:26] } 36. Rxh4 { [%eval #-2] [%clk 0:05:35] } 36... Qg2+ { [%eval #-1] [%clk 0:07:22] } 0-1