Event: Round 1: Rosen, Daniel B - Alex Potter
Site: https://lichess.org/broadcast/49th-bwci-guernsey-international-chess-festival--open/round-1/2Rb9Y5T3/NCtOsibw
Date: 2025-10-19
White: Rosen, Daniel B
WhiteTitle: CM
WhiteElo: 1973
Black: Alex Potter
Result: 1-0
ECO: C78
Opening: Ruy Lopez: Morphy Defense
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:40:57] } 1... e5 { [%eval 0.22] [%clk 1:40:35] } 2. Nf3 { [%eval 0.13] [%clk 1:41:18] } 2... Nc6 { [%eval 0.21] [%clk 1:40:36] } 3. Bb5 { [%eval 0.15] [%clk 1:41:36] } 3... a6 { [%eval 0.21] [%clk 1:40:29] } 4. Ba4 { [%eval 0.11] [%clk 1:41:57] } 4... Nf6 { [%eval 0.28] [%clk 1:40:21] } 5. O-O { [%eval 0.16] [%clk 1:41:50] } 5... b5 { [%eval 0.24] [%clk 1:39:41] } 6. Bb3 { [%eval 0.29] [%clk 1:42:14] } 6... Bc5 { [%eval 0.33] [%clk 1:39:47] } 7. Qe2 { [%eval 0.0] [%clk 1:41:15] } 7... O-O { [%eval -0.08] [%clk 1:34:28] } 8. c3 { [%eval -0.24] [%clk 1:41:08] } 8... Re8 { [%eval -0.03] [%clk 1:29:56] } 9. d3 { [%eval -0.16] [%clk 1:41:14] } 9... h6 { [%eval -0.3] [%clk 1:26:19] } 10. Be3 { [%eval -0.56] [%clk 1:39:42] } 10... Bxe3?! { [%eval 0.0] } { Inaccuracy. Bf8 was best. } { [%clk 1:23:33] } 11. fxe3 { [%eval 0.0] [%clk 1:39:23] } 11... Na5 { [%eval 0.07] [%clk 1:12:21] } 12. Bc2 { [%eval 0.17] [%clk 1:39:00] } 12... d5 { [%eval 0.08] [%clk 1:10:10] } 13. exd5 { [%eval 0.12] [%clk 1:38:31] } 13... e4 { [%eval 0.65] [%clk 1:05:41] } 14. dxe4 { [%eval 0.65] [%clk 1:36:34] } 14... Nxe4 { [%eval 0.7] [%clk 1:05:19] } 15. Nbd2 { [%eval 0.61] [%clk 1:28:19] } 15... Nf6?! { [%eval 1.33] } { Inaccuracy. Nxd2 was best. } { [%clk 1:01:08] } 16. b4 { [%eval 1.31] [%clk 1:22:49] } 16... Nb7 { [%eval 1.26] [%clk 1:00:47] } 17. Qd3? { [%eval 0.03] } { Mistake. Rae1 was best. } { [%clk 1:22:47] } 17... Qxd5 { [%eval 0.05] [%clk 0:57:47] } 18. Nd4 { [%eval 0.19] [%clk 1:22:15] } 18... Qg5 { [%eval 0.19] [%clk 0:49:28] } 19. Rxf6? { [%eval -0.91] } { Mistake. Rae1 was best. } { [%clk 1:13:34] } 19... Qxf6?? { [%eval 4.64] } { Blunder. gxf6 was best. } { [%clk 0:47:03] } 20. Qh7+ { [%eval 4.79] [%clk 1:13:32] } 20... Kf8 { [%eval 4.77] [%clk 0:47:22] } 21. Rf1 { [%eval 4.83] [%clk 1:13:46] } 21... Qb6 { [%eval 4.8] [%clk 0:25:08] } 22. Qh8+ { [%eval 4.73] [%clk 1:11:59] } 22... Ke7 { [%eval 4.76] [%clk 0:25:28] } 23. Qxg7 { [%eval 4.66] [%clk 1:12:23] } 23... Be6 { [%eval 4.62] [%clk 0:25:04] } 24. Be4 { [%eval 4.65] [%clk 1:07:30] } 24... Rf8?! { [%eval 7.04] } { Inaccuracy. c5 was best. } { [%clk 0:22:15] } 25. Bc6 { [%eval 6.99] [%clk 0:59:22] } 25... Rad8?? { [%eval #2] } { Checkmate is now unavoidable. Qxc6 was best. } { [%clk 0:20:55] } 26. Qf6+ { [%eval #1] [%clk 0:59:36] } 26... Kd6 { [%eval #1] [%clk 0:20:35] } 27. Ne4# { [%clk 0:59:28] } 1-0