Event: Biel Chess Festival 2025
Date: 2025-07-22
White: Kopp, Guenter
WhiteElo: 1747
Black: Luedi, Paul
BlackElo: 1716
Result: 1/2-1/2
ECO: A10
Opening: English Opening
Variant: Standard

1. c4 { [%eval 0.12] [%clk 1:30:26] } 1... b6 { [%eval 0.33] [%clk 1:30:30] } 2. Nf3 { [%eval 0.26] [%clk 1:30:26] } 2... Bb7 { [%eval 0.28] [%clk 1:28:30] } 3. e3 { [%eval 0.05] [%clk 1:30:26] } 3... c5 { [%eval 0.41] [%clk 1:26:31] } 4. d4 { [%eval 0.28] [%clk 1:29:17] } 4... e6?! { [%eval 0.95] } { Inaccuracy. cxd4 was best. } { [%clk 1:25:44] } 5. Nc3 { [%eval 0.44] [%clk 1:28:05] } 5... Nf6 { [%eval 0.96] [%clk 1:23:56] } 6. d5 { [%eval 0.97] [%clk 1:24:28] } 6... d6 { [%eval 0.94] [%clk 1:22:38] } 7. e4 { [%eval 0.96] [%clk 1:18:34] } 7... e5 { [%eval 1.31] [%clk 1:20:56] } 8. Be2 { [%eval 1.5] [%clk 1:16:14] } 8... Be7 { [%eval 1.65] [%clk 1:15:55] } 9. b4? { [%eval 0.23] } { Mistake. g3 was best. } { [%clk 1:12:54] } 9... cxb4 { [%eval 0.26] [%clk 1:11:34] } 10. Qa4+ { [%eval 0.19] [%clk 1:09:03] } 10... Nbd7 { [%eval 0.23] [%clk 1:11:17] } 11. Qxb4 { [%eval 0.26] [%clk 1:02:00] } 11... O-O { [%eval 0.41] [%clk 1:11:04] } 12. Be3 { [%eval 0.16] [%clk 0:59:41] } 12... a5 { [%eval 0.69] [%clk 1:00:23] } 13. Qb3 { [%eval 0.75] [%clk 0:53:26] } 13... Qb8 { [%eval 1.22] [%clk 1:00:51] } 14. a4?! { [%eval 0.6] } { Inaccuracy. Nd2 was best. } { [%clk 0:47:08] } 14... Ba6 { [%eval 0.58] [%clk 0:58:41] } 15. Nd2 { [%eval 0.63] [%clk 0:43:28] } 15... Nc5 { [%eval 0.63] [%clk 0:58:18] } 16. Bxc5 { [%eval 0.53] [%clk 0:43:04] } 16... bxc5 { [%eval 0.76] [%clk 0:57:55] } 17. Nb5 { [%clk 0:42:57] } 1/2-1/2