Event: Round 6: Ritzerveld, Noah - Koster, Chiel
Date: 2025-05-18
White: Ritzerveld, Noah
WhiteTitle: FM
WhiteElo: 2272
Black: Koster, Chiel
BlackElo: 2123
Result: 1/2-1/2
ECO: B33
Opening: Sicilian Defense: Lasker-Pelikan Variation
Variant: Standard
TimeControl: 90+30

1. e4 { [%eval 0.18] [%clk 1:30:57] } 1... c5 { [%eval 0.25] [%clk 1:30:58] } 2. Nf3 { [%eval 0.2] [%clk 1:31:17] } 2... Nc6 { [%eval 0.25] [%clk 1:31:26] } 3. d4 { [%eval 0.27] [%clk 1:31:39] } 3... cxd4 { [%eval 0.35] [%clk 1:31:53] } 4. Nxd4 { [%eval 0.21] [%clk 1:32:00] } 4... Nf6 { [%eval 0.19] [%clk 1:32:22] } 5. Nc3 { [%eval 0.26] [%clk 1:32:19] } 5... e5 { [%eval 0.34] [%clk 1:32:51] } 6. Ndb5 { [%eval 0.31] [%clk 1:32:41] } 6... d6 { [%eval 0.34] [%clk 1:33:18] } 7. Nd5 { [%eval 0.28] [%clk 1:32:21] } 7... Nxd5 { [%eval 0.17] [%clk 1:33:44] } 8. exd5 { [%eval 0.31] [%clk 1:32:43] } 8... Nb8 { [%eval 0.29] [%clk 1:34:13] } 9. a4 { [%eval 0.3] [%clk 1:32:55] } 9... a6 { [%eval 0.56] [%clk 1:34:22] } 10. Na3 { [%eval 0.56] [%clk 1:33:11] } 10... Be7 { [%eval 0.53] [%clk 1:34:44] } 11. Bd2 { [%eval 0.33] [%clk 1:31:24] } 11... O-O { [%eval 0.26] [%clk 1:35:07] } 12. Be2 { [%eval 0.26] [%clk 1:28:51] } 12... f5 { [%eval 0.61] [%clk 1:35:11] } 13. a5 { [%eval 0.63] [%clk 1:25:49] } 13... Nd7 { [%eval 0.63] [%clk 1:34:26] } 14. b4? { [%eval -0.61] } { Mistake. Nc4 was best. } { [%clk 1:24:21] } 14... Nf6 { [%eval -0.58] [%clk 1:33:45] } 15. c4 { [%eval -0.8] [%clk 1:23:01] } 15... Ne4?! { [%eval -0.11] } { Inaccuracy. Qe8 was best. } { [%clk 1:31:49] } 16. Be3? { [%eval -1.41] } { Mistake. O-O was best. } { [%clk 1:20:03] } 16... Bg5?! { [%eval -0.4] } { Inaccuracy. Nc3 was best. } { [%clk 1:31:41] } 17. O-O { [%eval -0.79] [%clk 1:15:19] } 17... Bxe3 { [%eval -0.67] [%clk 1:29:23] } 18. fxe3 { [%eval -0.77] [%clk 1:15:42] } 18... b6?! { [%eval 0.04] } { Inaccuracy. Qg5 was best. } { [%clk 1:29:46] } 19. Nc2 { [%eval 0.0] [%clk 1:12:42] } 19... bxa5 { [%eval 0.03] [%clk 1:27:40] } 20. Rxa5 { [%eval 0.08] [%clk 1:12:33] } 20... f4 { [%eval 0.25] [%clk 1:20:54] } 21. Qd3 { [%eval 0.33] [%clk 0:56:51] } 21... Ng5 { [%eval 0.54] [%clk 1:11:12] } 22. exf4 { [%eval 0.59] [%clk 0:55:23] } 22... exf4 { [%eval 0.55] [%clk 1:10:28] } 23. Nd4 { [%eval 0.42] [%clk 0:53:23] } 23... Qb6 { [%eval 0.34] [%clk 1:09:41] } 24. Kh1 { [%eval 0.1] [%clk 0:39:47] } 24... Qxb4 { [%eval 0.06] [%clk 1:07:52] } 25. Raa1 { [%eval 0.0] [%clk 0:34:45] } 25... f3 { [%eval 0.41] [%clk 0:58:52] } 26. Bxf3 { [%eval 0.03] [%clk 0:33:04] } 26... Nxf3 { [%eval 0.03] [%clk 0:58:49] } 27. Rxf3 { [%eval 0.0] [%clk 0:29:35] } 27... Bg4 { [%eval 0.37] [%clk 0:56:44] } 28. Rxf8+ { [%eval 0.44] [%clk 0:26:38] } 28... Rxf8 { [%eval 0.64] [%clk 0:56:47] } 29. h3 { [%eval 0.83] [%clk 0:25:55] } 29... Bd7 { [%eval 0.74] [%clk 0:55:35] } 30. Rb1?! { [%eval 0.1] } { Inaccuracy. Ne6 was best. } { [%clk 0:25:37] } 30... Qa5? { [%eval 1.25] } { Mistake. Qc5 was best. } { [%clk 0:54:46] } 31. Kh2? { [%eval 0.01] } { Mistake. Nc6 was best. } { [%clk 0:19:51] } 31... Qc7 { [%eval 0.0] [%clk 0:51:57] } 32. Re1 { [%eval 0.0] [%clk 0:18:43] } 32... h6 { [%eval 0.09] [%clk 0:45:40] } 33. Re7 { [%eval 0.0] [%clk 0:11:18] } 33... Qd8 { [%eval 0.0] [%clk 0:45:22] } 34. Qe4 { [%eval 0.0] [%clk 0:10:03] } 34... Re8 { [%eval 0.0] [%clk 0:44:30] } 35. Rxe8+ { [%eval 0.0] [%clk 0:09:07] } 35... Qxe8 { [%eval 0.0] [%clk 0:42:49] } 36. Qxe8+ { [%eval 0.0] [%clk 0:05:37] } 36... Bxe8 { [%eval 0.0] [%clk 0:43:05] } 37. Nf5 { [%eval 0.0] [%clk 0:04:23] } 37... a5 { [%eval 0.0] [%clk 0:43:29] } 38. Nxd6 { [%eval 0.0] [%clk 0:04:43] } 38... a4 { [%eval 0.0] [%clk 0:43:48] } 39. Nb5 { [%eval 0.0] [%clk 0:04:27] } 39... Kf7 { [%eval 0.0] [%clk 0:44:13] } 40. Na3?? { [%eval -2.42] } { Blunder. Nc3 was best. } { [%clk 0:03:16] } 40... Kf6 { [%eval -2.33] [%clk 0:44:04] } 41. Kg3 { [%eval -2.13] [%clk 0:02:19] } 41... Ke5 { [%eval -2.11] [%clk 0:44:26] } 42. Kf3 { [%eval -1.98] [%clk 0:01:07] } 42... Kd4 { [%eval -1.18] [%clk 0:44:09] } 43. d6? { [%eval -2.71] } { Mistake. Kf4 was best. } { [%clk 0:00:40] } 43... Kc5 { [%eval -2.17] [%clk 0:44:16] } 44. Ke4 { [%eval -1.23] [%clk 0:00:40] } 44... Kxd6 { [%eval -0.77] [%clk 0:44:05] } 1/2-1/2