Event: Round 4: Herman Grooten - David Miedema
Date: 2023-07-14
White: Herman Grooten
WhiteTitle: IM
Black: David Miedema
BlackTitle: IM
Result: 0-1
ECO: D38
Opening: Queen's Gambit Declined: Ragozin Defense, Alekhine Variation
Variant: Standard

1. d4 { [%eval 0.0] [%clk 1:30:57] } 1... Nf6 { [%eval 0.28] [%clk 1:27:45] } 2. c4 { [%eval 0.16] [%clk 1:31:19] } 2... e6 { [%eval 0.23] [%clk 1:28:11] } 3. Nf3 { [%eval 0.0] [%clk 1:31:43] } 3... d5 { [%eval 0.17] [%clk 1:28:37] } 4. Nc3 { [%eval 0.0] [%clk 1:32:05] } 4... Bb4 { [%eval 0.15] [%clk 1:29:03] } 5. Qa4+ { [%eval 0.18] [%clk 1:31:13] } 5... Nc6 { [%eval 0.19] [%clk 1:29:26] } 6. e3 { [%eval 0.16] [%clk 1:31:15] } 6... O-O { [%eval 0.13] [%clk 1:29:41] } 7. Bd2 { [%eval 0.16] [%clk 1:31:13] } 7... Re8 { [%eval 0.26] [%clk 1:29:39] } 8. O-O-O? { [%eval -1.0] } { Mistake. a3 was best. } { [%clk 1:20:05] } 8... Ng4 { [%eval -0.92] [%clk 1:21:08] } 9. Be1 { [%eval -0.89] [%clk 1:19:39] } 9... Bxc3 { [%eval -0.95] [%clk 1:21:30] } 10. bxc3 { [%eval -1.03] [%clk 1:20:01] } 10... Nf6 { [%eval -0.9] [%clk 1:21:56] } 11. Qc2 { [%eval -0.75] [%clk 1:15:20] } 11... Qe7 { [%eval -0.87] [%clk 1:04:12] } 12. Bd3 { [%eval -1.32] [%clk 1:04:12] } 12... dxc4 { [%eval -1.19] [%clk 0:54:57] } 13. Bxc4 { [%eval -1.17] [%clk 1:04:29] } 13... e5 { [%eval -0.73] [%clk 0:55:23] } 14. Ng5 { [%eval -0.67] [%clk 1:01:32] } 14... Nd8 { [%eval -0.76] [%clk 0:51:08] } 15. f3 { [%eval -1.09] [%clk 0:51:24] } 15... exd4 { [%eval -0.92] [%clk 0:34:40] } 16. exd4 { [%eval -0.92] [%clk 0:49:59] } 16... h6 { [%eval -0.94] [%clk 0:34:54] } 17. h4 { [%eval -1.33] [%clk 0:40:17] } 17... b5 { [%eval -1.31] [%clk 0:34:52] } 18. Bb3?! { [%eval -2.15] } { Inaccuracy. Bd3 was best. } { [%clk 0:30:26] } 18... a5 { [%eval -2.14] [%clk 0:31:49] } 19. Ne4 { [%eval -2.26] [%clk 0:26:15] } 19... a4?! { [%eval -1.58] } { Inaccuracy. Bf5 was best. } { [%clk 0:30:24] } 20. Nxf6+ { [%eval -1.48] [%clk 0:26:26] } 20... Qxf6 { [%eval -1.81] [%clk 0:30:45] } 21. Bd5 { [%eval -1.72] [%clk 0:26:44] } 21... Bb7 { [%eval -1.67] [%clk 0:23:47] } 22. Bxb7 { [%eval -1.84] [%clk 0:25:46] } 22... Nxb7 { [%eval -1.68] [%clk 0:24:14] } 23. Bg3 { [%eval -1.87] [%clk 0:25:59] } 23... c5 { [%eval -1.39] [%clk 0:24:13] } 24. Be5 { [%eval -1.57] [%clk 0:25:36] } 24... Qe6?! { [%eval -0.91] } { Inaccuracy. Qa6 was best. } { [%clk 0:22:38] } 25. Rhe1 { [%eval -0.92] [%clk 0:24:51] } 25... cxd4 { [%eval -0.95] [%clk 0:22:32] } 26. Bg3 { [%eval -1.19] [%clk 0:20:35] } 26... Qc6 { [%eval -1.13] [%clk 0:16:39] } 27. cxd4 { [%eval -1.37] [%clk 0:19:34] } 27... Qd5 { [%eval -1.13] [%clk 0:16:54] } 28. Kb1 { [%eval -1.11] [%clk 0:19:05] } 28... Rec8?! { [%eval -0.54] } { Inaccuracy. Rad8 was best. } { [%clk 0:14:07] } 29. Qe4 { [%eval -0.44] [%clk 0:18:20] } 29... Qc4?? { [%eval 1.28] } { Blunder. Qd7 was best. } { [%clk 0:13:57] } 30. d5 { [%eval 1.2] [%clk 0:17:21] } 30... Qc3 { [%eval 1.74] [%clk 0:11:32] } 31. Be5 { [%eval 1.79] [%clk 0:15:58] } 31... Qa3? { [%eval 3.32] } { Mistake. Qc4 was best. } { [%clk 0:11:57] } 32. Qg4?? { [%eval 0.88] } { Blunder. d6 was best. } { [%clk 0:15:14] } 32... Qf8 { [%eval 0.7] [%clk 0:11:39] } 33. d6 { [%eval 0.68] [%clk 0:13:30] } 33... f6?? { [%eval 2.63] } { Blunder. Rc4 was best. } { [%clk 0:11:02] } 34. Bf4 { [%eval 2.0] [%clk 0:12:36] } 34... Rc4 { [%eval 1.63] [%clk 0:11:13] } 35. Qe6+ { [%eval 1.41] [%clk 0:12:44] } 35... Kh8 { [%eval 1.46] [%clk 0:10:58] } 36. Bg3?! { [%eval 0.83] } { Inaccuracy. Qf5 was best. } { [%clk 0:12:02] } 36... Rac8 { [%eval 1.22] [%clk 0:08:19] } 37. Rc1?! { [%eval 0.19] } { Inaccuracy. Qe7 was best. } { [%clk 0:10:36] } 37... Nc5?! { [%eval 0.99] } { Inaccuracy. Rxc1+ was best. } { [%clk 0:07:14] } 38. Qd5 { [%eval 0.47] [%clk 0:10:07] } 38... a3 { [%eval 0.45] [%clk 0:06:24] } 39. Rxc4 { [%eval 0.34] [%clk 0:08:36] } 39... bxc4 { [%eval 0.54] [%clk 0:05:55] } 40. d7 { [%eval 0.0] [%clk 0:06:07] } 40... Nxd7 { [%eval 0.0] [%clk 0:04:16] } 41. Qxd7 { [%eval 0.0] [%clk 0:04:07] } 41... Qb4+ { [%eval 0.0] [%clk 0:01:24] } 42. Kc2 { [%eval 0.0] [%clk 0:04:22] } 42... Qb2+ { [%eval 0.01] [%clk 0:01:06] } 43. Kd1 { [%eval 0.0] [%clk 0:04:45] } 43... Qb1+ { [%eval 0.0] [%clk 0:30:05] } 44. Ke2 { [%eval 0.0] [%clk 0:35:09] } 44... Qxa2+ { [%eval 0.0] [%clk 0:30:29] } 45. Kf1 { [%eval 0.0] [%clk 0:35:24] } 45... Rg8 { [%eval 0.0] [%clk 0:30:56] } 46. Bf2 { [%eval 0.0] [%clk 0:26:29] } 46... c3 { [%eval 0.0] [%clk 0:29:42] } 47. Qc6 { [%eval 0.0] [%clk 0:25:45] } 47... Qd2 { [%eval 0.0] [%clk 0:28:58] } 48. Qa4 { [%eval 0.0] [%clk 0:17:28] } 48... a2 { [%eval 0.0] [%clk 0:23:23] } 49. Be3? { [%eval -1.48] } { Mistake. Bd4 was best. } { [%clk 0:14:23] } 49... Qd3+ { [%eval -1.64] [%clk 0:15:11] } 50. Kf2?? { [%eval -3.84] } { Blunder. Kg1 was best. } { [%clk 0:14:25] } 50... Rb8 { [%eval -4.01] [%clk 0:15:18] } 51. Bd4 { [%eval -4.23] [%clk 0:07:46] } 51... c2?! { [%eval -3.1] } { Inaccuracy. Qd2+ was best. } { [%clk 0:05:59] } 52. Kg3? { [%eval -5.09] } { Mistake. Be3 was best. } { [%clk 0:06:34] } 52... Qd2?? { [%eval 0.0] } { Blunder. Rb1 was best. } { [%clk 0:04:26] } 53. Re8+ { [%eval 0.0] [%clk 0:06:03] } 53... Kh7 { [%eval 0.0] [%clk 0:04:53] } 54. Bb2?? { [%eval -4.59] } { Blunder. Rxb8 was best. } { [%clk 0:03:59] } 54... Qd6+ { [%eval -4.42] [%clk 0:04:02] } 55. Kh3 { [%eval -4.77] [%clk 0:03:15] } 55... Rxe8 { [%eval -4.71] [%clk 0:03:25] } 56. Qxe8 { [%eval -4.51] [%clk 0:03:24] } 56... c1=Q { [%eval -4.47] [%clk 0:03:12] } 57. Qe4+ { [%eval -4.69] [%clk 0:03:34] } 57... f5 { [%eval -5.35] [%clk 0:03:37] } 0-1