Event: Round 4: De Boer, Eelke - Van Roon, Sjoerd
Date: 2024-12-24
White: De Boer, Eelke
WhiteTitle: IM
WhiteElo: 2426
Black: Van Roon, Sjoerd
BlackTitle: FM
BlackElo: 2285
Result: 1/2-1/2
ECO: B31
Opening: Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:30:55] } 1... c5 { [%eval 0.25] [%clk 1:30:58] } 2. Nf3 { [%eval 0.2] [%clk 1:31:16] } 2... Nc6 { [%eval 0.25] [%clk 1:31:25] } 3. Bb5 { [%eval 0.28] [%clk 1:31:37] } 3... g6 { [%eval 0.24] [%clk 1:31:31] } 4. O-O { [%eval 0.22] [%clk 1:31:48] } 4... Bg7 { [%eval 0.34] [%clk 1:31:54] } 5. Bxc6 { [%eval 0.31] [%clk 1:32:10] } 5... dxc6 { [%eval 0.38] [%clk 1:32:07] } 6. d3 { [%eval 0.27] [%clk 1:32:29] } 6... Bg4 { [%eval 0.66] [%clk 1:29:25] } 7. Nbd2 { [%eval 0.56] [%clk 1:32:16] } 7... Nf6 { [%eval 0.71] [%clk 1:27:37] } 8. h3 { [%eval 0.66] [%clk 1:32:37] } 8... Bxf3 { [%eval 0.69] [%clk 1:28:00] } 9. Nxf3 { [%eval 0.66] [%clk 1:32:52] } 9... Nd7 { [%eval 0.66] [%clk 1:24:29] } 10. Be3 { [%eval 0.51] [%clk 1:29:36] } 10... b6 { [%eval 0.47] [%clk 1:12:52] } 11. Qc1 { [%eval 0.36] [%clk 1:26:51] } 11... e5 { [%eval 0.47] [%clk 1:05:18] } 12. a4 { [%eval 0.57] [%clk 1:19:38] } 12... h6 { [%eval 1.09] [%clk 1:02:24] } 13. Nh2 { [%eval 0.64] [%clk 1:11:46] } 13... Nf8 { [%eval 0.94] [%clk 1:01:27] } 14. f4?! { [%eval 0.18] } { Inaccuracy. a5 was best. } { [%clk 1:11:48] } 14... exf4 { [%eval 0.11] [%clk 1:01:35] } 15. Rxf4 { [%eval 0.11] [%clk 1:12:07] } 15... Ne6 { [%eval 0.12] [%clk 1:01:21] } 16. Rf2 { [%eval 0.28] [%clk 1:11:52] } 16... a5 { [%eval 0.71] [%clk 0:56:14] } 17. Qd2 { [%eval 0.59] [%clk 1:05:46] } 17... Ra7 { [%eval 0.64] [%clk 0:27:26] } 18. Raf1 { [%eval 0.6] [%clk 1:05:57] } 18... Rd7? { [%eval 2.1] } { Mistake. h5 was best. } { [%clk 0:26:52] } 19. Ng4 { [%eval 2.12] [%clk 0:44:51] } 19... h5 { [%eval 2.04] [%clk 0:26:01] } 20. Nf6+ { [%eval 1.99] [%clk 0:45:01] } 20... Bxf6 { [%eval 2.27] [%clk 0:26:28] } 21. Rxf6 { [%eval 2.07] [%clk 0:45:22] } 21... Qc7?! { [%eval 2.77] } { Inaccuracy. O-O was best. } { [%clk 0:22:01] } 22. Qc3 { [%eval 2.79] [%clk 0:43:18] } 22... Rg8 { [%eval 3.02] [%clk 0:16:17] } 23. Qc4 { [%eval 3.04] [%clk 0:42:28] } 23... Qe5 { [%eval 2.99] [%clk 0:13:48] } 24. Qa6 { [%eval 3.01] [%clk 0:39:17] } 24... Qb8 { [%eval 3.08] [%clk 0:12:32] } 25. c3 { [%eval 2.94] [%clk 0:37:53] } 25... g5 { [%eval 3.0] [%clk 0:11:15] } 26. Qc4 { [%eval 2.92] [%clk 0:25:25] } 26... Qd6 { [%eval 3.01] [%clk 0:09:57] } 27. d4 { [%eval 2.63] [%clk 0:25:46] } 27... cxd4 { [%eval 2.6] [%clk 0:10:20] } 28. cxd4 { [%eval 2.34] [%clk 0:26:09] } 28... g4?! { [%eval 3.29] } { Inaccuracy. h4 was best. } { [%clk 0:10:15] } 29. h4 { [%eval 3.37] [%clk 0:26:03] } 29... g3 { [%eval 3.05] [%clk 0:06:19] } 30. Rh6?! { [%eval 1.8] } { Inaccuracy. Qe2 was best. } { [%clk 0:18:24] } 30... Rg4 { [%eval 1.79] [%clk 0:06:09] } 31. Rh8+ { [%eval 1.55] [%clk 0:09:19] } 31... Ke7 { [%eval 1.69] [%clk 0:06:33] } 32. Rxh5 { [%eval 1.97] [%clk 0:09:42] } 32... Rxe4 { [%eval 1.84] [%clk 0:05:45] } 33. Qd3 { [%eval 1.77] [%clk 0:09:28] } 33... Rxd4 { [%eval 2.12] [%clk 0:04:22] } 34. Bxd4 { [%eval 1.88] [%clk 0:09:21] } 34... Qxd4+ { [%eval 2.04] [%clk 0:04:47] } 35. Qxd4 { [%eval 1.98] [%clk 0:09:38] } 35... Rxd4 { [%eval 1.91] [%clk 0:05:15] } 36. Rhf5 { [%eval 1.79] [%clk 0:01:52] } 36... Rxh4 { [%eval 1.7] [%clk 0:05:27] } 37. Rxf7+ { [%eval 1.74] [%clk 0:02:19] } 37... Kd6 { [%eval 1.8] [%clk 0:05:52] } 38. b3?? { [%eval -0.04] } { Blunder. Re1 was best. } { [%clk 0:01:59] } 38... Re4 { [%eval 0.0] [%clk 0:05:07] } 39. Rd1+ { [%eval 0.0] [%clk 0:00:47] } 39... Nd4 { [%eval 0.0] [%clk 0:03:50] } 40. Rf3 { [%eval 0.0] [%clk 0:00:42] } 40... Ke7 { [%eval 0.0] [%clk 0:01:09] } 41. Rfd3 { [%eval 0.0] [%clk 0:17:18] } 41... c5 { [%eval 0.0] [%clk 0:32:04] } 42. Kf1 { [%eval 0.0] [%clk 0:17:40] } 42... Rf4+ { [%eval 0.0] [%clk 0:31:58] } 43. Ke1 { [%eval 0.0] [%clk 0:17:59] } 43... Re4+ { [%eval 0.0] [%clk 0:31:32] } 44. Kf1 { [%eval 0.0] [%clk 0:18:06] } 44... Rf4+ { [%clk 0:30:40] } 1/2-1/2