Event: Round 4: Koen Mathijssen - Van der Geest, Friso
Date: 2025-05-17
White: Koen Mathijssen
Black: Van der Geest, Friso
Result: 0-1
ECO: B32
Opening: Sicilian Defense: Kalashnikov Variation
Variant: Standard
TimeControl: 90+30

1. e4 { [%eval 0.18] [%clk 1:30:57] } 1... c5 { [%eval 0.25] [%clk 1:30:52] } 2. Nf3 { [%eval 0.2] [%clk 1:31:21] } 2... Nc6 { [%eval 0.25] [%clk 1:31:18] } 3. d4 { [%eval 0.27] [%clk 1:31:47] } 3... cxd4 { [%eval 0.35] [%clk 1:31:43] } 4. Nxd4 { [%eval 0.21] [%clk 1:32:12] } 4... e5 { [%eval 0.42] [%clk 1:32:07] } 5. Nb5 { [%eval 0.35] [%clk 1:32:30] } 5... d6 { [%eval 0.37] [%clk 1:32:32] } 6. N1c3 { [%eval 0.25] [%clk 1:32:37] } 6... a6 { [%eval 0.29] [%clk 1:32:51] } 7. Na3 { [%eval 0.3] [%clk 1:32:57] } 7... Be7 { [%eval 0.26] [%clk 1:33:10] } 8. Nd5 { [%eval 0.23] [%clk 1:32:34] } 8... Nf6 { [%eval 0.2] [%clk 1:33:33] } 9. Nxe7 { [%eval 0.06] [%clk 1:26:31] } 9... Nxe7 { [%eval 0.01] [%clk 1:32:36] } 10. Bd3 { [%eval 0.05] [%clk 1:24:16] } 10... d5 { [%eval 0.21] [%clk 1:30:43] } 11. exd5 { [%eval 0.16] [%clk 1:23:02] } 11... Nexd5 { [%eval 0.2] [%clk 1:31:06] } 12. O-O { [%eval 0.14] [%clk 1:23:16] } 12... O-O { [%eval 0.16] [%clk 1:30:37] } 13. Re1 { [%eval 0.13] [%clk 1:21:46] } 13... Re8 { [%eval 0.13] [%clk 1:29:41] } 14. Bg5 { [%eval -0.04] [%clk 1:20:47] } 14... Bg4 { [%eval 0.4] [%clk 1:13:35] } 15. Qd2 { [%eval 0.0] [%clk 1:12:27] } 15... h6 { [%eval 0.0] [%clk 1:08:19] } 16. Bxf6 { [%eval -0.29] [%clk 1:08:57] } 16... Nxf6 { [%eval 0.14] [%clk 1:06:13] } 17. f3?! { [%eval -0.59] } { Inaccuracy. Nc4 was best. } { [%clk 1:09:16] } 17... Bf5 { [%eval -0.51] [%clk 0:55:01] } 18. Nc4 { [%eval -0.6] [%clk 1:03:22] } 18... Qd4+?! { [%eval -0.02] } { Inaccuracy. Bxd3 was best. } { [%clk 0:41:14] } 19. Qe3 { [%eval 0.0] [%clk 0:54:37] } 19... Bxd3 { [%eval -0.03] [%clk 0:38:41] } 20. cxd3 { [%eval -0.12] [%clk 0:50:28] } 20... b5 { [%eval -0.04] [%clk 0:29:43] } 21. Qxd4 { [%eval -0.1] [%clk 0:49:54] } 21... exd4 { [%eval -0.11] [%clk 0:30:02] } 22. Nd6 { [%eval -0.17] [%clk 0:48:59] } 22... Re3 { [%eval 0.01] [%clk 0:26:39] } 23. Rxe3 { [%eval -0.11] [%clk 0:47:13] } 23... dxe3 { [%eval -0.12] [%clk 0:27:01] } 24. Nf5 { [%eval -0.24] [%clk 0:44:06] } 24... Nd5 { [%eval -0.36] [%clk 0:24:20] } 25. a3?! { [%eval -1.37] } { Inaccuracy. a4 was best. } { [%clk 0:40:58] } 25... Re8? { [%eval -0.07] } { Mistake. g6 was best. } { [%clk 0:22:58] } 26. g3 { [%eval -0.11] [%clk 0:38:13] } 26... g6 { [%eval -0.23] [%clk 0:20:41] } 27. Nxh6+?? { [%eval -4.39] } { Blunder. Nd4 was best. } { [%clk 0:38:08] } 27... Kg7 { [%eval -3.99] [%clk 0:20:52] } 28. Ng4 { [%eval -3.97] [%clk 0:38:31] } 28... f5 { [%eval -3.92] [%clk 0:21:08] } 29. Nf2 { [%eval -3.83] [%clk 0:37:31] } 29... exf2+ { [%eval -3.96] [%clk 0:21:29] } 30. Kxf2 { [%eval -3.88] [%clk 0:37:57] } 30... Rc8 { [%eval -3.86] [%clk 0:15:37] } 31. b4 { [%eval -4.58] [%clk 0:36:39] } 31... Rc2+ { [%eval -4.56] [%clk 0:14:55] } 32. Kg1 { [%eval -4.61] [%clk 0:37:05] } 32... Rc3 { [%eval -4.43] [%clk 0:14:19] } 33. a4 { [%eval -4.55] [%clk 0:36:24] } 33... Rb3 { [%eval -4.08] [%clk 0:07:35] } 34. axb5 { [%eval -4.28] [%clk 0:35:29] } 34... axb5 { [%eval -4.11] [%clk 0:07:57] } 35. Rc1 { [%eval -4.57] [%clk 0:35:51] } 35... Nxb4 { [%eval -4.45] [%clk 0:07:03] } 36. d4 { [%eval -4.53] [%clk 0:36:14] } 36... Nd3 { [%eval -4.59] [%clk 0:04:29] } 37. Rc7+ { [%eval -4.42] [%clk 0:35:55] } 37... Kf6 { [%eval -4.52] [%clk 0:04:53] } 38. f4 { [%eval -5.31] [%clk 0:36:01] } 38... b4 { [%eval -4.84] [%clk 0:03:30] } 39. d5 { [%eval -5.42] [%clk 0:33:00] } 39... Rc3 { [%eval -5.41] [%clk 0:03:17] } 40. d6 { [%eval -6.22] [%clk 0:33:23] } 40... Ke6 { [%eval -6.12] [%clk 0:03:14] } 41. d7 { [%eval -5.91] [%clk 0:33:42] } 41... Ke7 { [%eval -6.12] [%clk 0:03:28] } 42. Rb7 { [%eval -5.55] [%clk 0:32:56] } 42... b3 { [%eval -6.12] [%clk 0:03:18] } 43. Kg2 { [%eval -6.55] [%clk 0:33:10] } 43... b2 { [%eval -6.2] [%clk 0:03:32] } 0-1