Event: Round 5: Van Roon, Sjoerd - Okuno, Rion
Date: 2024-12-26
White: Van Roon, Sjoerd
WhiteTitle: FM
WhiteElo: 2285
Black: Okuno, Rion
BlackElo: 2027
Result: 0-1
ECO: B90
Opening: Sicilian Defense: Najdorf Variation, English Attack
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:30:57] } 1... c5 { [%eval 0.25] [%clk 1:30:56] } 2. Nf3 { [%eval 0.2] [%clk 1:31:24] } 2... d6 { [%eval 0.22] [%clk 1:31:20] } 3. d4 { [%eval 0.22] [%clk 1:31:52] } 3... cxd4 { [%eval 0.19] [%clk 1:31:44] } 4. Nxd4 { [%eval 0.18] [%clk 1:32:20] } 4... Nf6 { [%eval 0.25] [%clk 1:32:08] } 5. Nc3 { [%eval 0.32] [%clk 1:32:47] } 5... a6 { [%eval 0.32] [%clk 1:32:34] } 6. Be3 { [%eval 0.33] [%clk 1:32:52] } 6... e5 { [%eval 0.15] [%clk 1:31:28] } 7. Nb3 { [%eval 0.17] [%clk 1:33:17] } 7... Be7 { [%eval 0.24] [%clk 1:31:54] } 8. f3 { [%eval 0.41] [%clk 1:33:33] } 8... Be6 { [%eval 0.32] [%clk 1:32:20] } 9. Qd2 { [%eval 0.36] [%clk 1:33:21] } 9... h5 { [%eval 0.45] [%clk 1:32:45] } 10. Nd5 { [%eval 0.44] [%clk 1:33:05] } 10... Nxd5 { [%eval 0.42] [%clk 1:33:06] } 11. exd5 { [%eval 0.31] [%clk 1:33:19] } 11... Bf5 { [%eval 0.36] [%clk 1:33:32] } 12. Be2 { [%eval 0.4] [%clk 1:32:24] } 12... a5 { [%eval 0.35] [%clk 1:33:22] } 13. Bb5+ { [%eval 0.23] [%clk 1:31:19] } 13... Nd7 { [%eval 0.14] [%clk 1:33:46] } 14. a4 { [%eval 0.21] [%clk 1:29:48] } 14... O-O { [%eval 0.25] [%clk 1:28:31] } 15. O-O { [%eval 0.17] [%clk 1:30:03] } 15... Nf6 { [%eval 0.16] [%clk 1:28:18] } 16. c4 { [%eval 0.17] [%clk 1:24:32] } 16... Bd7 { [%eval 0.24] [%clk 1:28:04] } 17. Rfd1 { [%eval 0.22] [%clk 1:17:40] } 17... b6 { [%eval 0.32] [%clk 0:57:38] } 18. Qf2 { [%eval 0.32] [%clk 1:12:36] } 18... Rb8 { [%eval 0.3] [%clk 0:56:27] } 19. Nc1 { [%eval -0.13] [%clk 1:09:38] } 19... e4?! { [%eval 0.67] } { Inaccuracy. Bxb5 was best. } { [%clk 0:40:45] } 20. Ne2 { [%eval 0.25] [%clk 1:07:55] } 20... exf3 { [%eval 0.21] [%clk 0:33:02] } 21. gxf3 { [%eval 0.36] [%clk 1:07:27] } 21... Bxb5 { [%eval 0.31] [%clk 0:31:23] } 22. cxb5 { [%eval 0.05] [%clk 1:06:42] } 22... Nd7 { [%eval 0.0] [%clk 0:29:55] } 23. Nd4 { [%eval 0.04] [%clk 1:04:38] } 23... Bh4 { [%eval 0.09] [%clk 0:29:32] } 24. Qg2 { [%eval 0.17] [%clk 0:54:52] } 24... Qf6 { [%eval 0.25] [%clk 0:28:54] } 25. Nc6 { [%eval -0.09] [%clk 0:51:21] } 25... Rbe8 { [%eval -0.22] [%clk 0:29:06] } 26. Bd4 { [%eval -0.17] [%clk 0:51:46] } 26... Qg5?! { [%eval 0.48] } { Inaccuracy. Qg6 was best. } { [%clk 0:22:32] } 27. Rd2? { [%eval -0.85] } { Mistake. Qxg5 was best. } { [%clk 0:47:59] } 27... Qxg2+?! { [%eval 0.13] } { Inaccuracy. Qh6 was best. } { [%clk 0:22:18] } 28. Rxg2 { [%eval 0.05] [%clk 0:46:46] } 28... Bf6 { [%eval 0.05] [%clk 0:22:45] } 29. Rd1 { [%eval -0.18] [%clk 0:44:04] } 29... Bxd4+ { [%eval -0.05] [%clk 0:21:05] } 30. Nxd4 { [%eval -0.06] [%clk 0:42:48] } 30... Re5 { [%eval -0.07] [%clk 0:20:54] } 31. Nc6 { [%eval -0.07] [%clk 0:36:56] } 31... Re3 { [%eval -0.17] [%clk 0:20:21] } 32. f4? { [%eval -1.74] } { Mistake. Nd4 was best. } { [%clk 0:37:13] } 32... Rfe8 { [%eval -1.6] [%clk 0:19:53] } 33. Nd4? { [%eval -3.46] } { Mistake. Rc2 was best. } { [%clk 0:36:30] } 33... Re1+ { [%eval -3.52] [%clk 0:17:59] } 34. Rxe1 { [%eval -3.2] [%clk 0:36:57] } 34... Rxe1+ { [%eval -3.51] [%clk 0:18:26] } 35. Kf2 { [%eval -3.37] [%clk 0:37:23] } 35... Re4 { [%eval -3.32] [%clk 0:18:08] } 36. Nc6 { [%eval -3.6] [%clk 0:32:25] } 36... Rxf4+ { [%eval -3.68] [%clk 0:17:13] } 37. Ke3 { [%eval -3.65] [%clk 0:32:14] } 37... Rxa4 { [%eval -3.62] [%clk 0:17:15] } 38. Ne7+ { [%eval -3.82] [%clk 0:31:23] } 38... Kf8 { [%eval -3.82] [%clk 0:16:53] } 39. Nc8 { [%eval -3.78] [%clk 0:31:51] } 39... Nf6 { [%eval -3.76] [%clk 0:15:43] } 40. Rd2 { [%eval -3.96] [%clk 0:32:01] } 40... Rc4 { [%eval -3.95] [%clk 0:11:28] } 41. Nxb6 { [%eval -3.9] [%clk 0:14:51] } 41... Rc5 { [%eval -3.87] [%clk 0:11:48] } 42. Na4 { [%eval -4.34] [%clk 0:14:46] } 42... Nxd5+ { [%eval -4.05] [%clk 0:09:43] } 43. Ke4 { [%eval -4.02] [%clk 0:14:04] } 43... Nf6+ { [%eval -4.02] [%clk 0:09:48] } 44. Kf3 { [%eval -3.95] [%clk 0:14:25] } 44... Rxb5 { [%eval -4.1] [%clk 0:05:11] } 45. Rxd6 { [%eval -3.98] [%clk 0:14:51] } 45... Rb3+ { [%eval -3.97] [%clk 0:05:03] } 46. Kg2 { [%eval -4.02] [%clk 0:14:46] } 46... Rb4 { [%eval -3.94] [%clk 0:05:15] } 47. Nb6 { [%eval -4.45] [%clk 0:14:33] } 47... Rxb2+ { [%eval -4.39] [%clk 0:05:29] } 48. Kh3 { [%eval -4.7] [%clk 0:15:00] } 48... Ng4 { [%eval -4.56] [%clk 0:03:16] } 49. Nd5 { [%eval -4.87] [%clk 0:14:04] } 49... g6 { [%eval -4.82] [%clk 0:02:37] } 50. Ra6 { [%eval -5.13] [%clk 0:12:36] } 50... Rxh2+ { [%eval -5.11] [%clk 0:02:20] } 51. Kg3 { [%eval -5.0] [%clk 0:12:50] } 51... Ra2 { [%eval -5.02] [%clk 0:02:34] } 52. Kh4 { [%eval -5.21] [%clk 0:12:59] } 52... Kg7 { [%eval -5.0] [%clk 0:02:39] } 53. Nc3 { [%eval -5.18] [%clk 0:13:07] } 53... Ra3 { [%eval -5.21] [%clk 0:02:22] } 54. Ne4 { [%eval -5.17] [%clk 0:13:24] } 54... a4 { [%eval -4.91] [%clk 0:01:53] } 55. Ng5 { [%eval -5.45] [%clk 0:11:55] } 55... Nh6 { [%eval -5.31] [%clk 0:01:10] } 56. Ne4 { [%eval -5.45] [%clk 0:11:50] } 56... Ra1 { [%eval -4.82] [%clk 0:00:54] } 0-1