Event: Round 5: Schilstra, Laurens - Koster, Ramon
Date: 2024-09-14
White: Schilstra, Laurens
WhiteElo: 2178
Black: Koster, Ramon
BlackTitle: FM
Result: 1-0
ECO: B95
Opening: Sicilian Defense: Najdorf Variation
Variant: Standard

1. e4 { [%eval 0.18] [%clk 0:02:58] } 1... c5 { [%eval 0.25] [%clk 0:03:04] } 2. Nf3 { [%eval 0.31] [%clk 0:02:58] } 2... d6 { [%eval 0.21] [%clk 0:03:05] } 3. d4 { [%eval 0.27] [%clk 0:02:58] } 3... cxd4 { [%eval 0.24] [%clk 0:03:07] } 4. Nxd4 { [%eval 0.18] [%clk 0:02:59] } 4... Nf6 { [%eval 0.24] [%clk 0:03:08] } 5. Nc3 { [%eval 0.16] [%clk 0:02:59] } 5... a6 { [%eval 0.29] [%clk 0:03:10] } 6. Bg5 { [%eval 0.08] [%clk 0:02:58] } 6... e6 { [%eval 0.12] [%clk 0:03:11] } 7. Bc4 { [%eval -0.04] [%clk 0:02:49] } 7... Be7 { [%eval -0.05] [%clk 0:03:12] } 8. Bb3 { [%eval -0.21] [%clk 0:02:48] } 8... Qc7 { [%eval 0.0] [%clk 0:02:53] } 9. Qe2 { [%eval 0.0] [%clk 0:02:43] } 9... h6 { [%eval 0.12] [%clk 0:02:51] } 10. Be3 { [%eval 0.13] [%clk 0:02:38] } 10... b5 { [%eval 0.17] [%clk 0:02:52] } 11. f3 { [%eval -0.11] [%clk 0:02:37] } 11... b4 { [%eval -0.06] [%clk 0:02:27] } 12. Na4 { [%eval 0.07] [%clk 0:02:38] } 12... Bd7 { [%eval 0.02] [%clk 0:02:09] } 13. g4?! { [%eval -0.84] } { Inaccuracy. O-O was best. } { [%clk 0:02:06] } 13... Qa5 { [%eval -0.87] [%clk 0:02:03] } 14. Nxe6?! { [%eval -1.62] } { Inaccuracy. Nb6 was best. } { [%clk 0:01:45] } 14... Bxe6 { [%eval -1.35] [%clk 0:01:51] } 15. Nb6 { [%eval -1.43] [%clk 0:01:44] } 15... Ra7? { [%eval 0.23] } { Mistake. Bxb3 was best. } { [%clk 0:01:43] } 16. Nc4? { [%eval -0.91] } { Mistake. Bxe6 was best. } { [%clk 0:01:45] } 16... Qc7 { [%eval -0.96] [%clk 0:01:42] } 17. Bxa7 { [%eval -1.42] [%clk 0:01:44] } 17... Qxa7 { [%eval -1.42] [%clk 0:01:42] } 18. O-O-O { [%eval -1.33] [%clk 0:01:41] } 18... Qc7? { [%eval -0.09] } { Mistake. Qc5 was best. } { [%clk 0:01:34] } 19. Kb1 { [%eval -0.5] [%clk 0:01:38] } 19... Nbd7 { [%eval -0.55] [%clk 0:01:33] } 20. h4 { [%eval -0.61] [%clk 0:01:33] } 20... Nc5 { [%eval -0.53] [%clk 0:01:20] } 21. g5 { [%eval -0.72] [%clk 0:01:35] } 21... Nfd7 { [%eval -0.37] [%clk 0:01:10] } 22. f4 { [%eval -0.25] [%clk 0:01:22] } 22... Nxb3 { [%eval -0.26] [%clk 0:00:59] } 23. axb3 { [%eval -0.36] [%clk 0:01:23] } 23... Bxc4 { [%eval -0.25] [%clk 0:00:44] } 24. bxc4 { [%eval -0.33] [%clk 0:01:23] } 24... hxg5 { [%eval -0.28] [%clk 0:00:44] } 25. hxg5 { [%eval -0.38] [%clk 0:01:22] } 25... Rxh1 { [%eval -0.34] [%clk 0:00:45] } 26. Rxh1 { [%eval -0.39] [%clk 0:01:23] } 26... a5 { [%eval 0.0] [%clk 0:00:39] } 27. Qd3 { [%eval -0.49] [%clk 0:01:12] } 27... Qc5 { [%eval -0.09] [%clk 0:00:37] } 28. b3 { [%eval -0.33] [%clk 0:01:00] } 28... g6 { [%eval -0.41] [%clk 0:00:38] } 29. Re1 { [%eval -0.85] [%clk 0:00:44] } 29... Nf8?! { [%eval 0.0] } { Inaccuracy. Qf2 was best. } { [%clk 0:00:35] } 30. e5 { [%eval 0.0] [%clk 0:00:42] } 30... Ne6 { [%eval 0.19] [%clk 0:00:33] } 31. f5 { [%eval 0.22] [%clk 0:00:28] } 31... gxf5 { [%eval 0.24] [%clk 0:00:21] } 32. Qxf5?? { [%eval -1.57] } { Blunder. g6 was best. } { [%clk 0:00:29] } 32... a4?? { [%eval 2.44] } { Blunder. Nxg5 was best. } { [%clk 0:00:10] } 33. g6 { [%eval 2.42] [%clk 0:00:28] } 1-0