Event: WLC 2022 A
Site: Eindhoven, Netherlands
White: Koster, Chiel
WhiteElo: 2014
Black: Van Roon, Sjoerd
BlackElo: 2237
Result: 1/2-1/2
ECO: B90
Opening: Sicilian Defense: Najdorf Variation, Adams Attack
Variant: Standard
TimeControl: 90 min +  30 sec increment

1. e4 { [%eval 0.33] [%clk 1:30:58] } 1... c5 { [%eval 0.32] [%clk 1:30:56] } 2. Nf3 { [%eval 0.0] [%clk 1:31:26] } 2... d6 { [%eval 0.0] [%clk 1:30:59] } 3. d4 { [%eval 0.3] [%clk 1:31:50] } 3... cxd4 { [%eval 0.13] [%clk 1:31:27] } 4. Nxd4 { [%eval 0.29] [%clk 1:32:16] } 4... Nf6 { [%eval 0.31] [%clk 1:31:52] } 5. Nc3 { [%eval 0.18] [%clk 1:32:42] } 5... a6 { [%eval 0.0] [%clk 1:31:39] } 6. h3 { [%eval 0.1] [%clk 1:33:02] } 6... e5 { [%eval 0.05] [%clk 1:30:40] } 7. Nde2 { [%eval 0.0] [%clk 1:33:18] } 7... Be7?! { [%eval 0.69] } { Inaccuracy. h5 was best. } { [%clk 1:30:37] } 8. g4 { [%eval 0.78] [%clk 1:33:40] } 8... h6 { [%eval 0.84] [%clk 1:29:48] } 9. Bg2 { [%eval 0.61] [%clk 1:33:57] } 9... b5 { [%eval 0.83] [%clk 1:28:34] } 10. Be3 { [%eval 0.67] [%clk 1:33:58] } 10... Bb7 { [%eval 0.95] [%clk 1:28:10] } 11. O-O { [%eval 1.09] [%clk 1:33:57] } 11... O-O { [%eval 0.96] [%clk 1:26:57] } 12. Ng3 { [%eval 0.89] [%clk 1:33:36] } 12... b4 { [%eval 1.32] [%clk 1:25:41] } 13. Nd5 { [%eval 1.44] [%clk 1:32:54] } 13... Nxd5 { [%eval 1.57] [%clk 1:22:38] } 14. exd5 { [%eval 1.31] [%clk 1:33:18] } 14... Bg5 { [%eval 1.49] [%clk 1:21:32] } 15. Qd2 { [%eval 0.96] [%clk 1:33:25] } 15... Bxe3 { [%eval 0.99] [%clk 1:18:43] } 16. fxe3 { [%eval 0.64] [%clk 1:33:35] } 16... a5 { [%eval 0.66] [%clk 1:18:28] } 17. Rf2?! { [%eval 0.0] } { Inaccuracy. a3 was best. } { [%clk 1:31:45] } 17... Nd7 { [%eval 0.25] [%clk 1:17:04] } 18. Nf5?! { [%eval -0.48] } { Inaccuracy. a3 was best. } { [%clk 1:30:40] } 18... Nc5 { [%eval -0.19] [%clk 1:12:09] } 19. a3 { [%eval -0.41] [%clk 1:30:09] } 19... b3 { [%eval -0.66] [%clk 1:09:12] } 20. c3 { [%eval -0.86] [%clk 1:28:16] } 20... Ba6 { [%eval -0.63] [%clk 1:07:05] } 21. e4 { [%eval -0.64] [%clk 1:28:07] } 21... Kh7 { [%eval -0.6] [%clk 0:57:28] } 22. h4 { [%eval -0.75] [%clk 1:24:45] } 22... Nd3? { [%eval 0.44] } { Mistake. Bc8 was best. } { [%clk 0:55:25] } 23. Rf3 { [%eval 0.06] [%clk 1:24:49] } 23... Nf4?! { [%eval 0.93] } { Inaccuracy. Nc5 was best. } { [%clk 0:55:50] } 24. Rxf4 { [%eval 0.51] [%clk 1:24:53] } 24... exf4 { [%eval 0.78] [%clk 0:56:14] } 25. Qxf4 { [%eval 0.75] [%clk 1:25:17] } 25... Qf6?? { [%eval 2.75] } { Blunder. Qb6+ was best. } { [%clk 0:55:57] } 26. Qxd6 { [%eval 2.7] [%clk 1:25:21] } 26... Qxd6 { [%eval 2.98] [%clk 0:56:10] } 27. Nxd6 { [%eval 2.86] [%clk 1:25:45] } 27... Rad8 { [%eval 2.72] [%clk 0:48:22] } 28. Nf5 { [%eval 2.91] [%clk 1:25:36] } 28... Rfe8 { [%eval 3.1] [%clk 0:46:10] } 29. Kf2 { [%eval 2.96] [%clk 1:23:52] } 29... Bc8 { [%eval 2.76] [%clk 0:42:30] } 30. Ne3 { [%eval 2.96] [%clk 1:21:18] } 30... g6 { [%eval 3.0] [%clk 0:39:31] } 31. c4 { [%eval 3.13] [%clk 1:20:14] } 31... Kg7?! { [%eval 4.7] } { Inaccuracy. f5 was best. } { [%clk 0:37:24] } 32. c5 { [%eval 4.77] [%clk 1:18:55] } 32... Ba6 { [%eval 5.33] [%clk 0:36:30] } 33. Rd1 { [%eval 5.92] [%clk 1:18:06] } 33... Rc8 { [%eval 6.01] [%clk 0:28:48] } 34. c6 { [%eval 6.27] [%clk 1:15:35] } 34... Bb5 { [%eval 7.08] [%clk 0:26:01] } 35. Rc1 { [%eval 6.84] [%clk 1:06:52] } 35... Kf6 { [%eval 8.23] [%clk 0:25:43] } 36. Rc5 { [%eval 8.11] [%clk 1:06:30] } 36... Ba4 { [%eval 8.65] [%clk 0:23:59] } 37. Nc4 { [%eval 8.99] [%clk 1:06:28] } 37... Rb8 { [%eval 9.49] [%clk 0:22:59] } 38. c7 { [%eval 9.99] [%clk 1:02:01] } 38... Rbc8 { [%eval 10.2] [%clk 0:22:54] } 39. Nd6 { [%eval 7.3] [%clk 1:01:20] } 39... Ke5 { [%eval 7.22] [%clk 0:22:59] } 40. Nxe8 { [%eval 6.67] [%clk 1:00:13] } 40... Bxe8 { [%eval 7.12] [%clk 0:23:22] } 41. Ke3 { [%eval 7.2] [%clk 1:00:35] } 41... Bd7 { [%eval 7.37] [%clk 0:22:24] } 42. Bf3 { [%eval 6.89] [%clk 0:58:15] } 42... g5 { [%eval 7.12] [%clk 0:20:44] } 43. h5 { [%eval 7.57] [%clk 0:57:19] } 43... f6 { [%eval 8.03] [%clk 0:20:14] } 44. Be2 { [%eval 7.8] [%clk 0:57:25] } 44... Kd6 { [%eval 7.99] [%clk 0:16:58] } 45. Kd4 { [%eval 8.07] [%clk 0:54:06] } 45... a4 { [%eval 7.47] [%clk 0:15:04] } 46. Ra5 { [%eval 7.3] [%clk 0:50:55] } 46... Kxc7 { [%eval 6.9] [%clk 0:15:06] } 47. Rc5+? { [%eval 3.49] } { Mistake. Ra7+ was best. } { [%clk 0:47:18] } 47... Kd6 { [%eval 3.31] [%clk 0:15:21] } 48. Rxc8? { [%eval 1.95] } { Mistake. Rc4 was best. } { [%clk 0:47:37] } 48... Bxc8 { [%eval 1.87] [%clk 0:15:49] } 49. Ke3?? { [%eval 0.0] } { Blunder. Bb5 was best. } { [%clk 0:44:19] } 49... Bd7?? { [%eval 1.63] } { Blunder. Ke5 was best. } { [%clk 0:14:56] } 50. Kf3?? { [%eval 0.0] } { Blunder. Kd4 was best. } { [%clk 0:42:15] } 50... Ke5 { [%eval 0.0] [%clk 0:15:01] } 51. Bd3 { [%eval 0.0] [%clk 0:42:04] } 51... Kd4 { [%eval 0.0] [%clk 0:15:04] } 52. Ba6 { [%eval 0.0] [%clk 0:42:08] } 52... Ke5 { [%eval 0.0] [%clk 0:13:50] } 53. Bb7 { [%eval 0.0] [%clk 0:42:33] } 53... Kd6 { [%eval 0.0] [%clk 0:13:47] } 54. Ba8 { [%eval 0.0] [%clk 0:42:41] } 54... Kc5 { [%eval 0.0] [%clk 0:13:37] } 55. Bb7 { [%eval 0.0] [%clk 0:39:44] } 55... Kd6 { [%eval 0.0] [%clk 0:14:01] } 56. Ba8 { [%eval 0.0] [%clk 0:36:41] } 56... Kc5 { [%eval 0.0] [%clk 0:14:21] } 57. Bb7 { [%eval 0.0] [%clk 0:37:05] } 57... Kd6 { [%eval 0.0] } 1/2-1/2