Event: Round 11: Van Delft, Merijn - Koster, Ramon
Date: 2024-09-14
White: Van Delft, Merijn
WhiteTitle: IM
WhiteElo: 2377
Black: Koster, Ramon
BlackTitle: FM
Result: 0-1
ECO: B99
Opening: Sicilian Defense: Najdorf Variation, Main Line
Variant: Standard

1. e4 { [%eval 0.18] [%clk 0:03:02] } 1... c5 { [%eval 0.25] [%clk 0:03:04] } 2. Nf3 { [%eval 0.31] } 2... d6 { [%eval 0.21] } 3. d4 { [%eval 0.27] [%clk 0:03:04] } 3... cxd4 { [%eval 0.24] [%clk 0:03:07] } 4. Nxd4 { [%eval 0.18] [%clk 0:03:04] } 4... Nf6 { [%eval 0.24] [%clk 0:03:09] } 5. Nc3 { [%eval 0.16] [%clk 0:03:04] } 5... a6 { [%eval 0.29] [%clk 0:03:10] } 6. Bg5 { [%eval 0.08] [%clk 0:03:03] } 6... e6 { [%eval 0.12] [%clk 0:03:12] } 7. f4 { [%eval 0.03] [%clk 0:03:03] } 7... Be7 { [%eval 0.52] [%clk 0:03:13] } 8. Qf3 { [%eval 0.42] [%clk 0:03:03] } 8... Qc7 { [%eval 0.47] [%clk 0:03:15] } 9. O-O-O { [%eval 0.55] [%clk 0:03:02] } 9... Nbd7 { [%eval 0.4] [%clk 0:03:16] } 10. g4 { [%eval 0.43] [%clk 0:03:03] } 10... h6 { [%eval 0.52] [%clk 0:03:17] } 11. Bxf6 { [%eval 0.56] [%clk 0:03:02] } 11... Bxf6 { [%eval 0.45] [%clk 0:03:18] } 12. h4 { [%eval 0.45] [%clk 0:03:02] } 12... Nb6 { [%eval 0.5] [%clk 0:03:19] } 13. Be2 { [%eval 0.1] [%clk 0:02:53] } 13... Bd7 { [%eval 0.17] [%clk 0:03:20] } 14. g5 { [%eval 0.19] [%clk 0:02:49] } 14... Be7 { [%eval 0.16] [%clk 0:03:22] } 15. g6 { [%eval 0.16] [%clk 0:02:46] } 15... fxg6 { [%eval 0.13] [%clk 0:03:22] } 16. Qg4 { [%eval 0.24] [%clk 0:02:34] } 16... O-O-O { [%eval 0.19] [%clk 0:03:22] } 17. Nxe6 { [%eval 0.13] [%clk 0:02:23] } 17... Bxe6 { [%eval 0.21] [%clk 0:03:23] } 18. Qxe6+ { [%eval 0.19] [%clk 0:02:24] } 18... Kb8 { [%eval 0.19] [%clk 0:03:25] } 19. Nd5 { [%eval -0.08] [%clk 0:02:01] } 19... Nxd5 { [%eval -0.1] [%clk 0:03:23] } 20. Rxd5 { [%eval -0.06] [%clk 0:02:00] } 20... Rhf8 { [%eval 0.0] [%clk 0:03:18] } 21. Qxg6 { [%eval -0.06] [%clk 0:01:35] } 21... Rxf4 { [%eval -0.09] [%clk 0:03:05] } 22. h5? { [%eval -1.25] } { Mistake. Qxg7 was best. } { [%clk 0:01:26] } 22... Bf6 { [%eval -1.68] [%clk 0:02:53] } 23. a3?? { [%eval -4.02] } { Blunder. Rd3 was best. } { [%clk 0:01:14] } 23... Rc8?! { [%eval -2.51] } { Inaccuracy. Qb6 was best. } { [%clk 0:02:32] } 24. Bd1? { [%eval -4.97] } { Mistake. e5 was best. } { [%clk 0:00:59] } 24... Qb6?! { [%eval -3.21] } { Inaccuracy. Rf2 was best. } { [%clk 0:02:23] } 25. c3? { [%eval -5.51] } { Mistake. e5 was best. } { [%clk 0:00:56] } 25... Qe3+ { [%eval -5.47] [%clk 0:02:18] } 26. Kb1 { [%eval -5.42] [%clk 0:00:54] } 26... Rxc3 { [%eval -5.27] [%clk 0:01:24] } 27. e5 { [%eval -5.94] [%clk 0:00:54] } 27... Rc1+ { [%eval -5.85] [%clk 0:01:15] } 28. Ka2 { [%eval -5.88] [%clk 0:00:53] } 28... Bxe5 { [%eval -5.63] [%clk 0:01:06] } 29. Qd3?! { [%eval -10.89] } { Inaccuracy. Rxe5 was best. } { [%clk 0:00:41] } 29... Rf2 { [%eval -10.22] [%clk 0:00:44] } 30. Qxe3?! { [%eval #-1] } { Checkmate is now unavoidable. Be2 was best. } { [%clk 0:00:26] } 30... Rxb2# { [%clk 0:00:29] } 0-1