Event: Round 3: Koppenens, Oscar - Cornelissen, Jort
Date: 2025-05-17
White: Koppenens, Oscar
WhiteElo: 2024
Black: Cornelissen, Jort
BlackElo: 1863
Result: 1-0
ECO: B90
Opening: Sicilian Defense: Najdorf Variation
Variant: Standard
TimeControl: 90+30

1. e4 { [%eval 0.18] [%clk 1:30:57] } 1... c5 { [%eval 0.25] [%clk 1:30:53] } 2. Nf3 { [%eval 0.2] [%clk 1:31:24] } 2... d6 { [%eval 0.31] [%clk 1:31:15] } 3. d4 { [%eval 0.22] [%clk 1:31:51] } 3... cxd4 { [%eval 0.19] [%clk 1:31:40] } 4. Nxd4 { [%eval 0.18] [%clk 1:32:17] } 4... Nf6 { [%eval 0.31] [%clk 1:32:03] } 5. Nc3 { [%eval 0.32] [%clk 1:32:43] } 5... a6 { [%eval 0.23] [%clk 1:32:24] } 6. f3 { [%eval 0.13] [%clk 1:33:06] } 6... e5 { [%eval 0.4] [%clk 1:32:40] } 7. Nb3 { [%eval 0.24] [%clk 1:33:31] } 7... Be6 { [%eval 0.19] [%clk 1:32:59] } 8. Be3 { [%eval 0.51] [%clk 1:33:53] } 8... Be7 { [%eval 0.34] [%clk 1:33:15] } 9. Qd2 { [%eval 0.32] [%clk 1:33:55] } 9... h5 { [%eval 0.34] [%clk 1:33:27] } 10. Be2 { [%eval 0.39] [%clk 1:34:08] } 10... Nbd7 { [%eval 0.49] [%clk 1:30:06] } 11. Nd5 { [%eval 0.46] [%clk 1:34:28] } 11... Nxd5 { [%eval 0.48] [%clk 1:24:34] } 12. exd5 { [%eval 0.53] [%clk 1:34:47] } 12... Bf5 { [%eval 0.53] [%clk 1:24:57] } 13. Na5 { [%eval 0.33] [%clk 1:34:49] } 13... Qc7 { [%eval 0.48] [%clk 1:23:12] } 14. c4 { [%eval 0.0] [%clk 1:34:28] } 14... O-O?! { [%eval 0.63] } { Inaccuracy. Bh4+ was best. } { [%clk 1:20:41] } 15. O-O { [%eval 0.62] [%clk 1:34:17] } 15... h4 { [%eval 0.83] [%clk 1:17:46] } 16. b4 { [%eval 0.91] [%clk 1:32:06] } 16... Bf6 { [%eval 1.35] [%clk 1:09:58] } 17. Rac1 { [%eval 1.34] [%clk 1:31:16] } 17... b6 { [%eval 1.5] [%clk 1:09:01] } 18. Nb3?! { [%eval 0.45] } { Inaccuracy. Nc6 was best. } { [%clk 1:29:28] } 18... h3?! { [%eval 1.31] } { Inaccuracy. a5 was best. } { [%clk 1:01:37] } 19. g4 { [%eval 1.3] [%clk 1:27:52] } 19... Bg6 { [%eval 1.05] [%clk 1:01:50] } 20. a4 { [%eval 1.08] [%clk 1:26:46] } 20... a5?! { [%eval 1.73] } { Inaccuracy. Bh4 was best. } { [%clk 0:59:56] } 21. c5 { [%eval 1.84] [%clk 1:25:33] } 21... bxc5 { [%eval 1.8] [%clk 1:00:05] } 22. bxc5 { [%eval 1.51] [%clk 1:25:53] } 22... dxc5?! { [%eval 2.49] } { Inaccuracy. Bd8 was best. } { [%clk 0:58:54] } 23. Nxc5?! { [%eval 1.34] } { Inaccuracy. d6 was best. } { [%clk 1:26:15] } 23... Nxc5 { [%eval 1.46] [%clk 0:57:08] } 24. Rxc5 { [%eval 1.59] [%clk 1:26:27] } 24... Qd7?! { [%eval 2.47] } { Inaccuracy. Qb6 was best. } { [%clk 0:42:49] } 25. Rxa5?? { [%eval 0.18] } { Blunder. Bb5 was best. } { [%clk 1:25:13] } 25... e4?? { [%eval 2.48] } { Blunder. Rxa5 was best. } { [%clk 0:42:20] } 26. Rxa8 { [%eval 2.56] [%clk 1:24:47] } 26... Rxa8 { [%eval 2.53] [%clk 0:42:40] } 27. Bb5 { [%eval 2.4] [%clk 1:25:02] } 27... Qd6 { [%eval 2.62] [%clk 0:42:20] } 28. f4 { [%eval 2.55] [%clk 1:24:23] } 28... Bd8 { [%eval 2.59] [%clk 0:40:56] } 29. Rc1? { [%eval 1.35] } { Mistake. f5 was best. } { [%clk 1:23:58] } 29... Bb6 { [%eval 1.1] [%clk 0:38:10] } 30. f5?? { [%eval -3.43] } { Blunder. Kf1 was best. } { [%clk 1:21:37] } 30... Bh7?? { [%eval 2.24] } { Blunder. Qf4 was best. } { [%clk 0:37:40] } 31. Qf2?! { [%eval 1.05] } { Inaccuracy. Bxb6 was best. } { [%clk 1:17:38] } 31... Qa3? { [%eval 2.71] } { Mistake. Bxe3 was best. } { [%clk 0:36:41] } 32. Re1 { [%eval 2.4] [%clk 1:17:43] } 32... Ba5 { [%eval 2.29] [%clk 0:36:25] } 33. Rd1?! { [%eval 1.67] } { Inaccuracy. Bd2 was best. } { [%clk 1:17:30] } 33... Qb3 { [%eval 1.79] [%clk 0:36:00] } 34. Qe2? { [%eval 0.33] } { Mistake. Be2 was best. } { [%clk 1:16:40] } 34... Rd8?? { [%eval 3.61] } { Blunder. Rc8 was best. } { [%clk 0:34:52] } 35. d6 { [%eval 3.63] [%clk 1:16:13] } 35... Qc3 { [%eval 3.84] [%clk 0:32:58] } 36. d7 { [%eval 4.02] [%clk 1:14:57] } 36... Qe5 { [%eval 4.15] [%clk 0:33:05] } 37. Qf2 { [%eval 4.11] [%clk 1:14:22] } 37... Bc7 { [%eval 4.27] [%clk 0:32:38] } 38. Bb6 { [%eval 3.99] [%clk 1:12:08] } 38... e3 { [%eval 4.41] [%clk 0:31:08] } 39. Bxe3 { [%eval 4.38] [%clk 1:11:39] } 39... Bxf5 { [%eval 5.41] [%clk 0:31:18] } 40. gxf5 { [%eval 5.08] [%clk 1:11:41] } 40... g6 { [%eval 5.91] [%clk 0:31:22] } 41. fxg6 { [%eval 6.32] [%clk 1:11:13] } 41... f5?? { [%eval #15] } { Checkmate is now unavoidable. f6 was best. } { [%clk 0:30:41] } 42. Bc4+ { [%eval 27.13] [%clk 1:11:09] } 42... Kf8 { [%eval 10.96] [%clk 0:30:56] } 43. Bc5+ { [%eval 11.11] [%clk 1:11:28] } 1-0