Event: Game 1: De Boer, Eelke - Beerdsen, Thomas
Date: 2025-06-23
White: De Boer, Eelke
WhiteTitle: IM
WhiteElo: 2434
Black: Beerdsen, Thomas
BlackTitle: GM
BlackElo: 2512
Result: 1/2-1/2
ECO: D97
Opening: Grünfeld Defense: Russian Variation, Szabo Variation
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:30:56] } 1... Nf6 { [%eval 0.19] [%clk 1:30:53] } 2. c4 { [%eval 0.18] [%clk 1:31:19] } 2... g6 { [%eval 0.28] [%clk 1:31:19] } 3. Nc3 { [%eval 0.18] [%clk 1:31:19] } 3... d5 { [%eval 0.28] [%clk 1:31:44] } 4. Nf3 { [%eval 0.21] [%clk 1:31:18] } 4... Bg7 { [%eval 0.32] [%clk 1:32:06] } 5. Qb3 { [%eval 0.21] [%clk 1:31:36] } 5... dxc4 { [%eval 0.18] [%clk 1:23:27] } 6. Qxc4 { [%eval 0.24] [%clk 1:31:57] } 6... O-O { [%eval 0.2] [%clk 1:20:52] } 7. e4 { [%eval 0.17] [%clk 1:32:16] } 7... c6 { [%eval 0.55] [%clk 1:00:58] } 8. Be2 { [%eval 0.59] [%clk 1:29:05] } 8... b5 { [%eval 0.61] [%clk 0:55:36] } 9. Qb3 { [%eval 0.82] [%clk 1:23:54] } 9... e5 { [%eval 0.78] [%clk 0:52:24] } 10. dxe5 { [%eval 0.72] [%clk 1:21:55] } 10... Ng4 { [%eval 0.69] [%clk 0:50:24] } 11. Bg5 { [%eval 0.41] [%clk 1:08:08] } 11... Qb6 { [%eval 0.39] [%clk 0:48:03] } 12. O-O { [%eval 0.4] [%clk 1:08:13] } 12... Be6 { [%eval 0.63] [%clk 0:47:41] } 13. Qc2 { [%eval 0.66] [%clk 1:08:25] } 13... Nd7 { [%eval 0.84] [%clk 0:47:04] } 14. Rad1 { [%eval 0.88] [%clk 1:03:28] } 14... Ngxe5 { [%eval 0.72] [%clk 0:36:18] } 15. Nd4 { [%eval 0.72] [%clk 0:48:54] } 15... Bc4 { [%eval 0.78] [%clk 0:34:20] } 16. b3 { [%eval 0.26] [%clk 0:37:02] } 16... Bxe2 { [%eval 0.25] [%clk 0:34:27] } 17. Ndxe2 { [%eval 0.22] [%clk 0:37:18] } 17... Rfe8?! { [%eval 1.23] } { Inaccuracy. Nc5 was best. } { [%clk 0:25:12] } 18. h3 { [%eval 1.16] [%clk 0:35:35] } 18... Bf8 { [%eval 1.59] [%clk 0:17:04] } 19. Kh1 { [%eval 1.58] [%clk 0:34:07] } 19... f6 { [%eval 1.46] [%clk 0:16:12] } 20. Bc1 { [%eval 1.38] [%clk 0:28:04] } 20... Rad8 { [%eval 1.35] [%clk 0:15:21] } 21. f4 { [%eval 1.4] [%clk 0:24:36] } 21... Nf7 { [%eval 1.25] [%clk 0:15:35] } 22. e5 { [%eval 1.04] [%clk 0:24:46] } 22... f5?! { [%eval 1.64] } { Inaccuracy. Qc5 was best. } { [%clk 0:10:47] } 23. g4 { [%eval 1.67] [%clk 0:18:16] } 23... Nh6?! { [%eval 2.78] } { Inaccuracy. fxg4 was best. } { [%clk 0:08:14] } 24. Ng3 { [%eval 2.77] [%clk 0:18:10] } 24... fxg4 { [%eval 2.83] [%clk 0:07:19] } 25. Nce4 { [%eval 2.8] [%clk 0:18:22] } 25... Bg7 { [%eval 2.97] [%clk 0:06:47] } 26. Nd6 { [%eval 3.26] [%clk 0:07:12] } 26... Re6 { [%eval 3.42] [%clk 0:06:09] } 27. b4 { [%eval 3.41] [%clk 0:06:57] } 27... c5 { [%eval 2.64] [%clk 0:05:00] } 28. Be3 { [%eval 2.51] [%clk 0:06:59] } 28... Qc6+ { [%eval 2.72] [%clk 0:03:46] } 29. Qe4 { [%eval 2.79] [%clk 0:07:16] } 29... Nb8 { [%eval 2.7] [%clk 0:03:06] } 30. bxc5? { [%eval 0.94] } { Mistake. Bxc5 was best. } { [%clk 0:04:22] } 30... gxh3 { [%eval 1.01] [%clk 0:03:25] } 31. Qxc6 { [%eval 0.77] [%clk 0:01:35] } 31... Nxc6 { [%eval 0.93] [%clk 0:03:53] } 32. Nxb5?! { [%eval -0.11] } { Inaccuracy. Ne2 was best. } { [%clk 0:01:59] } 32... Rxd1 { [%eval -0.11] [%clk 0:03:50] } 33. Rxd1 { [%eval -0.12] [%clk 0:02:27] } 33... Ng4 { [%eval -0.12] [%clk 0:04:09] } 34. Bd4?! { [%eval -0.85] } { Inaccuracy. Nf1 was best. } { [%clk 0:01:01] } 34... g5?! { [%eval -0.03] } { Inaccuracy. Re8 was best. } { [%clk 0:03:07] } 35. f5 { [%eval -0.08] [%clk 0:00:37] } 35... Rxe5 { [%eval 0.0] [%clk 0:02:51] } 36. Bxe5 { [%eval 0.0] [%clk 0:00:42] } 36... Nf2+ { [%eval 0.0] [%clk 0:03:06] } 37. Kh2 { [%eval 0.0] [%clk 0:00:32] } 37... Bxe5 { [%eval -0.05] [%clk 0:01:09] } 38. Re1 { [%eval -0.09] [%clk 0:01:01] } 38... h5 { [%eval 0.0] [%clk 0:01:25] } 39. Rxe5 { [%eval -0.03] [%clk 0:00:34] } 39... Nxe5 { [%eval -0.1] [%clk 0:01:50] } 40. Kg1 { [%eval -0.17] [%clk 0:00:33] } 40... Nfd3 { [%eval -0.38] [%clk 0:01:05] } 41. Nd4?? { [%eval -3.49] } { Blunder. c6 was best. } { [%clk 0:22:21] } 41... Nxc5 { [%eval -3.11] [%clk 0:28:15] } 42. Nxh5 { [%eval -2.95] [%clk 0:21:54] } 42... Ne4 { [%eval -3.13] [%clk 0:22:12] } 43. Kh2 { [%eval -3.24] [%clk 0:20:12] } 43... g4 { [%eval -3.14] [%clk 0:21:41] } 44. Nf4 { [%eval -3.08] [%clk 0:18:26] } 44... Kf7 { [%eval -2.7] [%clk 0:20:47] } 45. Nxh3 { [%eval -2.9] [%clk 0:06:38] } 45... gxh3 { [%eval -2.95] [%clk 0:20:15] } 46. Kxh3 { [%eval -2.73] [%clk 0:06:57] } 46... Kf6 { [%eval -2.78] [%clk 0:14:30] } 47. a4 { [%eval -2.58] [%clk 0:06:14] } 47... a6 { [%eval -2.35] [%clk 0:10:44] } 48. a5 { [%eval -2.7] [%clk 0:03:10] } 48... Nc5 { [%eval -2.55] [%clk 0:10:10] } 49. Kg3 { [%eval -2.56] [%clk 0:03:23] } 49... Kg5 { [%eval -2.26] [%clk 0:09:53] } 50. Kf2 { [%eval -2.06] [%clk 0:03:21] } 50... Kf4?? { [%eval 0.0] } { Blunder. Kf6 was best. } { [%clk 0:10:10] } 51. f6 { [%eval 0.0] [%clk 0:03:24] } 51... Ke4 { [%eval 0.0] [%clk 0:08:40] } 52. f7 { [%eval 0.0] [%clk 0:03:36] } 52... Nxf7 { [%eval 0.0] [%clk 0:08:26] } 53. Nc6 { [%eval 0.0] [%clk 0:03:58] } 53... Ne5 { [%eval 0.0] [%clk 0:06:57] } 54. Nb8 { [%eval 0.0] [%clk 0:04:22] } 54... Ned7 { [%eval 0.0] [%clk 0:06:41] } 55. Nxa6 { [%eval 0.0] [%clk 0:04:41] } 55... Nxa6 { [%eval 0.0] [%clk 0:07:07] } 56. Kg3 { [%eval 0.0] [%clk 0:04:37] } 56... Ne5 { [%eval 0.0] [%clk 0:07:32] } 57. Kf2 { [%eval 0.0] [%clk 0:04:56] } 57... Kd3 { [%eval 0.0] [%clk 0:07:52] } 58. Kg2 { [%eval 0.0] [%clk 0:04:56] } 58... Ke2 { [%eval 0.0] [%clk 0:07:28] } 59. Kg3 { [%eval 0.0] [%clk 0:05:20] } 59... Ke3 { [%eval 0.0] [%clk 0:07:54] } 60. Kg2?! { [%eval -0.91] } { Inaccuracy. Kh4 was best. } { [%clk 0:05:41] } 60... Nd3 { [%eval -0.79] [%clk 0:07:52] } 61. Kg3 { [%eval -0.72] [%clk 0:06:05] } 61... Nf2 { [%eval -0.05] [%clk 0:08:15] } 62. Kh4 { [%eval 0.0] [%clk 0:05:26] } 62... Kf4 { [%eval 0.0] [%clk 0:08:32] } 63. Kh5 { [%eval 0.0] [%clk 0:05:51] } 63... Kf5 { [%eval 0.0] [%clk 0:08:44] } 64. Kh4 { [%eval 0.0] [%clk 0:06:09] } 64... Ne4 { [%eval 0.0] [%clk 0:08:52] } 65. Kh5 { [%eval 0.0] [%clk 0:06:03] } 65... Ng3+ { [%eval 0.0] [%clk 0:08:41] } 66. Kh4?? { [%eval #-38] } { Checkmate is now unavoidable. Kh6 was best. } { [%clk 0:06:12] } 66... Kf4 { [%eval #-37] [%clk 0:09:06] } 67. Kh3 { [%eval #-38] [%clk 0:06:39] } 67... Ne4?? { [%eval -0.53] } { Lost forced checkmate sequence. Nf5 was best. } { [%clk 0:08:42] } 68. Kh4?? { [%eval -77.03] } { Blunder. Kg2 was best. } { [%clk 0:06:49] } 68... Nac5?? { [%eval 0.0] } { Blunder. Ng3 was best. } { [%clk 0:08:52] } 69. a6 { [%eval 0.0] [%clk 0:07:13] } 69... Nxa6 { [%eval 0.0] [%clk 0:09:17] } 1/2-1/2