Event: Round 8: Federau, Juergen - Ahlberg, Matthias
Date: 2025-02-12
White: Federau, Juergen
WhiteTitle: FM
WhiteElo: 2047
Black: Ahlberg, Matthias
BlackElo: 2067
Result: 1-0
ECO: D19
Opening: Slav Defense: Czech Variation, Dutch Variation
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:30:56] } 1... c6 { [%eval 0.36] [%clk 1:30:50] } 2. c4 { [%eval 0.23] [%clk 1:31:21] } 2... d5 { [%eval 0.21] [%clk 1:31:16] } 3. Nf3 { [%eval 0.18] [%clk 1:31:44] } 3... Nf6 { [%eval 0.24] [%clk 1:31:37] } 4. Nc3 { [%eval 0.16] [%clk 1:31:26] } 4... dxc4 { [%eval 0.26] [%clk 1:31:43] } 5. a4 { [%eval 0.19] [%clk 1:31:39] } 5... Bf5 { [%eval 0.29] [%clk 1:31:49] } 6. e3 { [%eval 0.21] [%clk 1:32:01] } 6... e6 { [%eval 0.13] [%clk 1:31:39] } 7. Bxc4 { [%eval 0.17] [%clk 1:32:20] } 7... Bb4 { [%eval 0.2] [%clk 1:29:19] } 8. O-O { [%eval 0.31] [%clk 1:32:42] } 8... Nbd7 { [%eval 0.44] [%clk 1:28:28] } 9. Qe2 { [%eval 0.41] [%clk 1:31:59] } 9... O-O { [%eval 0.38] [%clk 1:24:56] } 10. Ne5 { [%eval 0.19] [%clk 1:16:26] } 10... Nxe5 { [%eval 0.2] [%clk 1:16:17] } 11. dxe5 { [%eval 0.16] [%clk 1:16:38] } 11... Bxc3? { [%eval 1.84] } { Mistake. Ne4 was best. } { [%clk 1:15:24] } 12. bxc3 { [%eval 1.92] [%clk 1:16:39] } 12... Nd7 { [%eval 1.93] [%clk 1:05:01] } 13. e4 { [%eval 1.96] [%clk 1:15:44] } 13... Bg6 { [%eval 1.94] [%clk 1:03:40] } 14. f4 { [%eval 1.9] [%clk 1:15:47] } 14... h6? { [%eval 3.62] } { Mistake. Qa5 was best. } { [%clk 0:59:54] } 15. f5 { [%eval 3.55] [%clk 1:10:23] } 15... exf5 { [%eval 4.42] [%clk 0:56:15] } 16. exf5 { [%eval 4.36] [%clk 1:10:33] } 16... Bh7 { [%eval 4.31] [%clk 0:48:18] } 17. e6 { [%eval 4.19] [%clk 1:07:33] } 17... fxe6 { [%eval 4.11] [%clk 0:47:58] } 18. Bxe6+ { [%eval 4.17] [%clk 1:06:29] } 18... Kh8 { [%eval 4.06] [%clk 0:47:02] } 19. Rd1 { [%eval 3.88] [%clk 0:48:16] } 19... Qe8 { [%eval 4.4] [%clk 0:46:17] } 20. Rxd7 { [%eval 4.4] [%clk 0:45:38] } 20... Bxf5 { [%eval 4.34] [%clk 0:45:15] } 21. Bxh6?! { [%eval 2.79] } { Inaccuracy. Qe5 was best. } { [%clk 0:42:30] } 21... Qxe6 { [%eval 2.6] [%clk 0:42:35] } 22. Bxg7+ { [%eval 2.73] [%clk 0:41:25] } 22... Kg8 { [%eval 2.79] [%clk 0:42:38] } 23. Qxe6+ { [%eval 2.6] [%clk 0:41:08] } 23... Bxe6 { [%eval 2.62] [%clk 0:43:06] } 24. Rxb7 { [%eval 2.76] [%clk 0:40:59] } 24... Rf7 { [%eval 2.71] [%clk 0:36:08] } 25. Rxf7 { [%eval 2.56] [%clk 0:40:58] } 25... Kxf7 { [%eval 2.34] [%clk 0:36:22] } 26. Bd4 { [%eval 2.51] [%clk 0:41:08] } 26... a5 { [%eval 2.49] [%clk 0:36:23] } 27. Rb1 { [%eval 2.57] [%clk 0:32:52] } 27... Bd5 { [%eval 3.02] [%clk 0:33:46] } 28. Rb7+ { [%eval 2.34] [%clk 0:28:47] } 28... Ke6 { [%eval 2.15] [%clk 0:33:47] } 29. Ra7? { [%eval 0.74] } { Mistake. h3 was best. } { [%clk 0:25:43] } 29... Rb8?? { [%eval 3.13] } { Blunder. Rxa7 was best. } { [%clk 0:29:19] } 30. c4?? { [%eval 0.26] } { Blunder. h4 was best. } { [%clk 0:22:42] } 30... Bxc4 { [%eval 0.32] [%clk 0:28:16] } 31. Rxa5 { [%eval 0.16] [%clk 0:22:47] } 31... Rb4?? { [%eval 2.36] } { Blunder. Bd5 was best. } { [%clk 0:24:32] } 32. Re5+ { [%eval 2.45] [%clk 0:14:27] } 32... Kf7 { [%eval 2.63] [%clk 0:22:21] } 33. a5 { [%eval 2.65] [%clk 0:12:19] } 33... Bd5 { [%eval 2.54] [%clk 0:21:40] } 34. Bc3 { [%eval 2.43] [%clk 0:11:15] } 34... Rb3 { [%eval 2.86] [%clk 0:18:02] } 35. Re3 { [%eval 2.72] [%clk 0:10:20] } 35... Ra3 { [%eval 2.8] [%clk 0:17:56] } 36. h4 { [%eval 2.76] [%clk 0:05:55] } 36... Kg6 { [%eval 2.56] [%clk 0:16:39] } 37. Kf2 { [%eval 2.8] [%clk 0:03:20] } 37... Ra2+ { [%eval 2.69] [%clk 0:15:48] } 38. Re2 { [%eval 2.59] [%clk 0:03:44] } 38... Ra4 { [%eval 3.28] [%clk 0:15:54] } 39. g3 { [%eval 3.23] [%clk 0:03:56] } 39... Ra3 { [%eval 3.27] [%clk 0:14:57] } 40. Re3 { [%eval 3.29] [%clk 0:03:36] } 40... Ra2+ { [%eval 3.09] [%clk 0:14:20] } 41. Ke1 { [%eval 3.18] [%clk 0:21:16] } 41... Rc2 { [%eval 3.81] [%clk 0:41:40] } 42. Bd2 { [%eval 3.59] [%clk 0:19:20] } 42... Kh5 { [%eval 4.39] [%clk 0:39:50] } 43. Ra3 { [%eval 4.53] [%clk 0:18:02] } 43... Kg4 { [%eval 4.75] [%clk 0:36:11] } 44. a6 { [%eval 4.59] [%clk 0:16:53] } 44... c5 { [%eval 4.61] [%clk 0:36:28] } 45. a7 { [%eval 4.39] [%clk 0:16:37] } 45... Ba8 { [%eval 4.88] [%clk 0:36:49] } 46. Kd1 { [%eval 4.87] [%clk 0:15:14] } 46... Rb2 { [%eval 4.75] [%clk 0:36:38] } 47. Kc1 { [%eval 5.05] [%clk 0:15:02] } 47... Rb7 { [%eval 4.98] [%clk 0:36:29] } 48. Bf4 { [%eval 4.97] [%clk 0:15:03] } 48... Kf5 { [%eval 4.97] [%clk 0:33:25] } 49. Kc2 { [%eval 4.91] [%clk 0:13:18] } 49... Ke4 { [%eval 4.9] [%clk 0:33:28] } 50. Bb8 { [%eval 4.54] [%clk 0:10:44] } 50... Kd4 { [%eval 4.51] [%clk 0:33:23] } 51. Rd3+ { [%eval 4.64] [%clk 0:10:23] } 51... Kc4 { [%eval 4.52] [%clk 0:33:37] } 52. Re3 { [%eval 4.07] [%clk 0:09:03] } 52... Rf7 { [%eval 4.43] [%clk 0:33:03] } 53. Rc3+ { [%eval 3.76] [%clk 0:07:54] } 53... Kd4 { [%eval 4.39] [%clk 0:32:41] } 54. Rd3+ { [%eval 4.27] [%clk 0:07:06] } 54... Kc4 { [%eval 4.33] [%clk 0:32:47] } 55. Rd2 { [%eval 3.48] [%clk 0:06:43] } 55... Be4+ { [%eval 3.25] [%clk 0:32:40] } 56. Kb2 { [%eval 3.37] [%clk 0:04:46] } 56... Rb7+ { [%eval 3.32] [%clk 0:32:36] } 57. Ka1 { [%eval 3.25] [%clk 0:02:43] } 57... Rf7 { [%eval 3.06] [%clk 0:31:41] } 58. Ra2?? { [%eval #-24] } { Checkmate is now unavoidable. Re2 was best. } { [%clk 0:01:56] } 58... Kb3?? { [%eval 2.49] } { Lost forced checkmate sequence. Rf1+ was best. } { [%clk 0:30:51] } 59. Bf4?! { [%eval 1.55] } { Inaccuracy. Rb2+ was best. } { [%clk 0:01:46] } 59... Rd7?! { [%eval 2.56] } { Inaccuracy. Ba8 was best. } { [%clk 0:30:21] } 60. Rb2+ { [%eval 2.45] [%clk 0:01:34] } 60... Ka3?? { [%eval 5.2] } { Blunder. Kc4 was best. } { [%clk 0:30:40] } 61. Rd2 { [%eval 5.08] [%clk 0:01:05] } 61... Re7?! { [%eval 6.63] } { Inaccuracy. Rh7 was best. } { [%clk 0:30:21] } 62. Bd6?! { [%eval 4.31] } { Inaccuracy. Re2 was best. } { [%clk 0:01:02] } 62... Rf7 { [%eval 4.34] [%clk 0:30:21] } 63. Bxc5+ { [%eval 4.31] [%clk 0:00:39] } 63... Kb3 { [%eval 4.26] [%clk 0:30:41] } 64. Rb2+ { [%eval 4.2] [%clk 0:00:47] } 64... Kc3 { [%eval 4.37] [%clk 0:31:00] } 65. Bf2 { [%eval 4.16] [%clk 0:00:42] } 65... Rd7 { [%eval 4.68] [%clk 0:31:03] } 66. Be1+ { [%eval 4.74] [%clk 0:00:49] } 66... Kc4 { [%eval 4.65] [%clk 0:30:38] } 67. Rb4+ { [%eval 4.64] [%clk 0:00:50] } 67... Kd3 { [%eval 4.65] [%clk 0:30:59] } 68. Bf2 { [%eval 4.67] [%clk 0:00:46] } 68... Bc6?! { [%eval 5.99] } { Inaccuracy. Bg2 was best. } { [%clk 0:27:10] } 69. Rd4+ { [%eval 5.46] [%clk 0:00:43] } 69... Rxd4 { [%eval 6.39] [%clk 0:27:31] } 70. Bxd4 { [%eval 6.43] [%clk 0:01:08] } 70... Kxd4 { [%eval 6.5] [%clk 0:27:54] } 71. h5 { [%eval 6.04] [%clk 0:01:30] } 71... Kc3 { [%eval 6.58] [%clk 0:27:54] } 1-0