Event: Copenhagen Championship 2023
Date: 2023-11-11
White: Kopylov, Diana
WhiteElo: 1397
Black: Kopylov, Daniel
BlackElo: 2342
Result: 0-1
ECO: B40
Opening: Sicilian Defense: Four Knights Variation
Variant: Standard

1. e4 { [%eval 0.36] [%clk 1:30:56] } 1... c5 { [%eval 0.32] [%clk 1:23:29] } 2. Nf3 { [%eval 0.0] [%clk 1:31:17] } 2... e6 { [%eval 0.0] [%clk 1:23:52] } 3. d4 { [%eval 0.42] [%clk 1:31:33] } 3... cxd4 { [%eval 0.26] [%clk 1:24:21] } 4. Nxd4 { [%eval 0.4] [%clk 1:31:49] } 4... Nf6 { [%eval 0.4] [%clk 1:24:42] } 5. Nc3 { [%eval 0.32] [%clk 1:32:02] } 5... Nc6 { [%eval 0.43] [%clk 1:25:04] } 6. Be3 { [%eval 0.0] [%clk 1:29:49] } 6... Bb4 { [%eval 0.0] [%clk 1:24:52] } 7. Bd3 { [%eval -0.04] [%clk 1:27:49] } 7... d5 { [%eval 0.0] [%clk 1:25:00] } 8. f3 { [%eval -0.53] [%clk 1:22:43] } 8... Nxd4 { [%eval -0.28] [%clk 1:18:58] } 9. Bxd4 { [%eval -0.18] [%clk 1:22:38] } 9... dxe4 { [%eval -0.29] [%clk 1:18:28] } 10. Bxe4? { [%eval -1.84] } { Mistake. fxe4 was best. } { [%clk 1:20:20] } 10... Nxe4 { [%eval -1.82] [%clk 1:18:18] } 11. fxe4 { [%eval -1.7] [%clk 1:20:38] } 11... Qh4+ { [%eval -1.72] [%clk 1:18:29] } 12. Kf1 { [%eval -1.66] [%clk 1:18:23] } 12... O-O { [%eval -1.71] [%clk 1:17:58] } 13. Qe2 { [%eval -2.13] [%clk 1:14:19] } 13... b6 { [%eval -1.69] [%clk 1:14:17] } 14. Re1? { [%eval -3.18] } { Mistake. a3 was best. } { [%clk 1:11:13] } 14... Rd8 { [%eval -3.03] [%clk 1:07:59] } 15. Be5? { [%eval -5.79] } { Mistake. Bf2 was best. } { [%clk 1:07:05] } 15... a5?! { [%eval -4.54] } { Inaccuracy. Qg5 was best. } { [%clk 1:05:09] } 16. Qb5?! { [%eval -6.43] } { Inaccuracy. Bg3 was best. } { [%clk 0:58:53] } 16... Ba6 { [%eval -6.18] [%clk 1:04:57] } 17. Bg3?? { [%eval #-13] } { Checkmate is now unavoidable. Qxa6 was best. } { [%clk 0:57:15] } 17... Qf6+? { [%eval -7.94] } { Lost forced checkmate sequence. Bxb5+ was best. } { [%clk 1:04:12] } 18. Kg1 { [%eval -8.02] [%clk 0:56:58] } 18... Bxb5 { [%eval -8.07] [%clk 1:04:20] } 0-1