Event: Biel Chess Festival 2025 Free Style Chess
Site: Biel, Switzerland
Date: 2025-07-16
White: Cloete, Willem Francois
WhiteElo: 1567
Black: Kostopoulos, Evaggelos
BlackElo: 2011
Result: 0-1
Variant: Fischerandom
TimeControl: 60 min + 30 sec per move

1. e4 { [%eval -0.17] [%clk 1:00:41] } 1... c5 { [%eval 0.21] [%clk 0:55:57] } 2. Nc3?! { [%eval -0.56] } { Inaccuracy. b4 was best. } { [%clk 1:00:11] } 2... Ng6 { [%eval -0.54] [%clk 0:55:06] } 3. g3?! { [%eval -1.2] } { Inaccuracy. f3 was best. } { [%clk 0:59:18] } 3... d6? { [%eval -0.03] } { Mistake. Ne5 was best. } { [%clk 0:54:14] } 4. Bg2 { [%eval -0.41] [%clk 0:58:05] } 4... Bc6?! { [%eval 0.24] } { Inaccuracy. b5 was best. } { [%clk 0:54:28] } 5. d3 { [%eval 0.23] [%clk 0:57:06] } 5... e6 { [%eval 0.26] [%clk 0:54:34] } 6. Bd2?! { [%eval -0.61] } { Inaccuracy. a4 was best. } { [%clk 0:55:13] } 6... Be7?! { [%eval 0.07] } { Inaccuracy. b5 was best. } { [%clk 0:54:49] } 7. O-O-O?? { [%eval -1.95] } { Blunder. a4 was best. } { [%clk 0:54:33] } 7... Nd7?! { [%eval -1.2] } { Inaccuracy. b5 was best. } { [%clk 0:53:32] } 8. f4?! { [%eval -2.02] } { Inaccuracy. a4 was best. } { [%clk 0:53:19] } 8... b5 { [%eval -1.93] [%clk 0:53:08] } 9. Nf2 { [%eval -2.0] [%clk 0:52:17] } 9... O-O { [%eval -1.8] [%clk 0:52:52] } 10. Bh1?! { [%eval -2.52] } { Inaccuracy. h4 was best. } { [%clk 0:51:15] } 10... b4 { [%eval -2.47] [%clk 0:51:28] } 11. Ne2 { [%eval -2.38] [%clk 0:51:08] } 11... Rfe8 { [%eval -1.84] [%clk 0:46:05] } 12. g4?! { [%eval -2.84] } { Inaccuracy. h4 was best. } { [%clk 0:45:34] } 12... a5 { [%eval -2.85] [%clk 0:45:09] } 13. g5 { [%eval -3.06] [%clk 0:44:51] } 13... Nb6?! { [%eval -2.27] } { Inaccuracy. d5 was best. } { [%clk 0:43:39] } 14. Ng3?! { [%eval -3.04] } { Inaccuracy. h4 was best. } { [%clk 0:39:00] } 14... c4 { [%eval -3.06] [%clk 0:43:41] } 15. Be3 { [%eval -3.16] [%clk 0:33:52] } 15... Qb7?! { [%eval -2.38] } { Inaccuracy. cxd3 was best. } { [%clk 0:37:24] } 16. Ng4?! { [%eval -3.33] } { Inaccuracy. f5 was best. } { [%clk 0:29:19] } 16... cxd3 { [%eval -2.99] [%clk 0:34:18] } 17. Rxd3?! { [%eval -3.89] } { Inaccuracy. b3 was best. } { [%clk 0:27:17] } 17... Nc4 { [%eval -3.32] [%clk 0:34:36] } 18. Rf1?! { [%eval -4.9] } { Inaccuracy. b3 was best. } { [%clk 0:23:56] } 18... Nxe3 { [%eval -4.76] [%clk 0:33:40] } 19. Rxe3 { [%eval -4.58] [%clk 0:23:16] } 19... Qb6 { [%eval -4.25] [%clk 0:28:48] } 20. b3 { [%eval -4.69] [%clk 0:21:09] } 20... Bb5 { [%eval -4.69] [%clk 0:27:27] } 21. Nh5 { [%eval -5.11] [%clk 0:14:26] } 21... e5 { [%eval -4.98] [%clk 0:27:28] } 22. fxe5 { [%eval -5.8] [%clk 0:07:05] } 22... Bxg5 { [%eval -6.11] [%clk 0:24:22] } 23. e6 { [%eval -6.79] [%clk 0:06:30] } 23... Bxe3+ { [%eval -6.63] [%clk 0:24:27] } 24. Nxe3 { [%eval -7.61] [%clk 0:06:28] } 24... Qxe3+ { [%eval -7.44] [%clk 0:24:55] } 25. Kb1 { [%eval -8.4] [%clk 0:06:27] } 25... f6 { [%eval -8.1] [%clk 0:24:23] } 26. Nxf6+ { [%eval -7.84] [%clk 0:04:44] } 26... gxf6 { [%eval -7.46] [%clk 0:22:56] } 27. Qxf6 { [%eval -9.67] [%clk 0:02:41] } 27... Re7 { [%clk 0:22:44] } 0-1