Event: Round 4: Lebedev, Lion - Koppenens, Oscar
Date: 2025-03-22
White: Lebedev, Lion
WhiteElo: 2038
Black: Koppenens, Oscar
BlackElo: 1986
Result: 0-1
ECO: B90
Opening: Sicilian Defense: Scheveningen Variation, English Attack, with f3
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:50:18] } 1... c5 { [%eval 0.25] [%clk 1:50:04] } 2. Nf3 { [%eval 0.2] [%clk 1:50:24] } 2... d6 { [%eval 0.22] [%clk 1:50:09] } 3. d4 { [%eval 0.22] [%clk 1:50:32] } 3... cxd4 { [%eval 0.19] [%clk 1:50:12] } 4. Nxd4 { [%eval 0.18] [%clk 1:50:38] } 4... Nf6 { [%eval 0.25] [%clk 1:50:16] } 5. Nc3 { [%eval 0.32] [%clk 1:50:44] } 5... a6 { [%eval 0.28] [%clk 1:50:21] } 6. Be3 { [%eval 0.25] [%clk 1:50:49] } 6... e6 { [%eval 0.32] [%clk 1:49:16] } 7. f3 { [%eval 0.25] [%clk 1:50:02] } 7... Be7 { [%eval 0.45] [%clk 1:49:18] } 8. Qd2 { [%eval 0.61] [%clk 1:48:43] } 8... Qc7?! { [%eval 1.17] } { Inaccuracy. h5 was best. } { [%clk 1:49:05] } 9. O-O-O { [%eval 0.63] [%clk 1:48:22] } 9... Nbd7?! { [%eval 1.69] } { Inaccuracy. h5 was best. } { [%clk 1:49:02] } 10. g4 { [%eval 1.65] [%clk 1:46:13] } 10... Ne5 { [%eval 1.94] [%clk 1:48:33] } 11. g5 { [%eval 2.07] [%clk 1:41:34] } 11... Nfd7 { [%eval 2.26] [%clk 1:48:33] } 12. b3?! { [%eval 1.56] } { Inaccuracy. f4 was best. } { [%clk 1:30:33] } 12... b5 { [%eval 1.92] [%clk 1:40:22] } 13. f4 { [%eval 1.74] [%clk 1:29:11] } 13... Nc6 { [%eval 2.08] [%clk 1:36:45] } 14. h4?! { [%eval 1.01] } { Inaccuracy. Nf5 was best. } { [%clk 1:21:21] } 14... Bb7 { [%eval 1.04] [%clk 1:35:02] } 15. Bh3 { [%eval 0.61] [%clk 1:15:18] } 15... Nc5 { [%eval 1.16] [%clk 1:32:58] } 16. a3?! { [%eval 0.09] } { Inaccuracy. Rhe1 was best. } { [%clk 1:06:20] } 16... Rc8?! { [%eval 0.67] } { Inaccuracy. b4 was best. } { [%clk 1:30:01] } 17. Rhe1 { [%eval 0.59] [%clk 0:58:56] } 17... b4 { [%eval 0.72] [%clk 1:27:09] } 18. Nd5? { [%eval -0.68] } { Mistake. axb4 was best. } { [%clk 0:53:33] } 18... exd5 { [%eval -0.72] [%clk 1:25:31] } 19. Bxc8?? { [%eval -3.95] } { Blunder. Nxc6 was best. } { [%clk 0:53:29] } 19... Nxd4 { [%eval -3.84] [%clk 1:25:30] } 20. Kb1 { [%eval -3.85] [%clk 0:53:04] } 20... Nf3 { [%eval -3.55] [%clk 1:23:28] } 21. Qxb4?! { [%eval -4.79] } { Inaccuracy. Qe2 was best. } { [%clk 0:52:46] } 21... Bxc8 { [%eval -5.09] [%clk 1:22:45] } 22. Rf1 { [%eval -5.6] [%clk 0:52:12] } 22... Nxe4 { [%eval -5.51] [%clk 1:22:40] } 23. Rxf3 { [%eval -6.02] [%clk 0:50:47] } 23... Nc3+ { [%eval -6.18] [%clk 1:22:36] } 24. Kc1 { [%eval -6.19] [%clk 0:50:18] } 24... Na2+ { [%eval -6.09] [%clk 1:22:41] } 0-1