Event: Round 4: Koenig, Dirk - Jahn, Peter
Date: 2025-07-10
White: Koenig, Dirk
WhiteElo: 1974
Black: Jahn, Peter
BlackElo: 2126
Result: 1-0
ECO: B10
Opening: Caro-Kann Defense: Two Knights Attack
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:30:57] } 1... c6 { [%eval 0.23] [%clk 1:30:48] } 2. Nc3 { [%eval 0.21] [%clk 1:29:50] } 2... d5 { [%eval 0.32] [%clk 1:31:04] } 3. Nf3 { [%eval 0.2] [%clk 1:30:02] } 3... dxe4 { [%eval 0.16] [%clk 1:31:02] } 4. Nxe4 { [%eval 0.12] [%clk 1:29:31] } 4... Nf6 { [%eval 0.21] [%clk 1:31:14] } 5. Neg5?! { [%eval -0.71] } { Inaccuracy. Nxf6+ was best. } { [%clk 1:27:30] } 5... h6 { [%eval -0.72] [%clk 1:31:11] } 6. Nxf7? { [%eval -2.23] } { Mistake. Nh3 was best. } { [%clk 1:27:52] } 6... Kxf7 { [%eval -1.6] [%clk 1:31:30] } 7. Bc4+ { [%eval -1.6] [%clk 1:27:02] } 7... e6 { [%eval -1.43] [%clk 1:31:35] } 8. Ne5+ { [%eval -2.21] [%clk 1:26:30] } 8... Kg8 { [%eval -2.12] [%clk 1:30:03] } 9. Qe2 { [%eval -2.16] [%clk 1:21:08] } 9... Qe8?! { [%eval -1.48] } { Inaccuracy. b5 was best. } { [%clk 1:22:41] } 10. Bd3 { [%eval -1.5] [%clk 1:10:16] } 10... Bd6 { [%eval -1.47] [%clk 1:22:47] } 11. Bg6 { [%eval -1.41] [%clk 1:09:53] } 11... Qd8 { [%eval -1.51] [%clk 1:21:57] } 12. Nf7 { [%eval -1.82] [%clk 1:08:13] } 12... Qc7 { [%eval -1.87] [%clk 1:21:36] } 13. d4 { [%eval -1.82] [%clk 1:07:48] } 13... c5 { [%eval -1.4] [%clk 1:12:56] } 14. Be3 { [%eval -1.5] [%clk 1:03:41] } 14... b6?? { [%eval 0.24] } { Blunder. c4 was best. } { [%clk 0:55:02] } 15. O-O-O?! { [%eval -0.56] } { Inaccuracy. dxc5 was best. } { [%clk 1:01:21] } 15... Nc6?! { [%eval 0.13] } { Inaccuracy. c4 was best. } { [%clk 0:54:54] } 16. Kb1? { [%eval -1.17] } { Mistake. Nxd6 was best. } { [%clk 0:52:02] } 16... Ne7 { [%eval -1.02] [%clk 0:50:03] } 17. dxc5 { [%eval -0.91] [%clk 0:34:54] } 17... Nxg6? { [%eval 0.71] } { Mistake. bxc5 was best. } { [%clk 0:49:51] } 18. Nxh8 { [%eval 0.57] [%clk 0:33:15] } 18... Kxh8 { [%eval 0.67] [%clk 0:49:12] } 19. cxd6 { [%eval 0.61] [%clk 0:30:12] } 19... Qc6 { [%eval 1.01] [%clk 0:48:55] } 20. h4? { [%eval -0.16] } { Mistake. Rhg1 was best. } { [%clk 0:24:45] } 20... e5 { [%eval 0.0] [%clk 0:43:57] } 21. f3 { [%eval 0.0] [%clk 0:17:52] } 21... Be6 { [%eval -0.13] [%clk 0:41:51] } 22. h5 { [%eval -0.47] [%clk 0:16:24] } 22... Nf8 { [%eval -0.4] [%clk 0:40:12] } 23. Qd2?! { [%eval -1.01] } { Inaccuracy. g4 was best. } { [%clk 0:06:57] } 23... Qd5?! { [%eval 0.0] } { Inaccuracy. Rc8 was best. } { [%clk 0:33:48] } 24. b3 { [%eval 0.0] [%clk 0:05:43] } 24... Qxd2 { [%eval 0.18] [%clk 0:33:38] } 25. Rxd2 { [%eval -0.1] [%clk 0:06:11] } 25... N8d7 { [%eval -0.02] [%clk 0:30:17] } 26. a4 { [%eval -0.04] [%clk 0:04:20] } 26... Rc8 { [%eval 0.0] [%clk 0:30:07] } 27. a5 { [%eval -0.07] [%clk 0:03:14] } 27... Kg8 { [%eval -0.02] [%clk 0:24:28] } 28. Kb2 { [%eval 0.0] [%clk 0:03:19] } 28... Kf7 { [%eval 0.07] [%clk 0:24:47] } 29. axb6 { [%eval -0.07] [%clk 0:02:53] } 29... axb6 { [%eval -0.05] [%clk 0:25:07] } 30. c4?! { [%eval -0.63] } { Inaccuracy. Re2 was best. } { [%clk 0:02:37] } 30... b5 { [%eval -0.65] [%clk 0:24:31] } 31. cxb5 { [%eval -0.7] [%clk 0:02:26] } 31... Rb8 { [%eval -0.75] [%clk 0:24:56] } 32. g4?! { [%eval -1.61] } { Inaccuracy. b6 was best. } { [%clk 0:00:59] } 32... Rxb5 { [%eval -1.49] [%clk 0:25:16] } 33. Rd3 { [%eval -1.43] [%clk 0:01:17] } 33... Bd5 { [%eval -1.64] [%clk 0:24:43] } 34. g5? { [%eval -3.34] } { Mistake. Rh3 was best. } { [%clk 0:01:17] } 34... hxg5? { [%eval -1.8] } { Mistake. Bxf3 was best. } { [%clk 0:24:03] } 35. Bxg5 { [%eval -1.77] [%clk 0:01:39] } 35... e4?? { [%eval 0.08] } { Blunder. Nxh5 was best. } { [%clk 0:23:04] } 36. Re3 { [%eval 0.12] [%clk 0:01:13] } 36... exf3 { [%eval 0.0] [%clk 0:20:19] } 37. Re7+ { [%eval 0.02] [%clk 0:01:23] } 37... Kf8?? { [%eval 4.38] } { Blunder. Kg8 was best. } { [%clk 0:20:42] } 38. h6 { [%eval 4.03] [%clk 0:01:47] } 38... Bf7 { [%eval 3.64] [%clk 0:19:08] } 39. h7?! { [%eval 2.83] } { Inaccuracy. Rxd7 was best. } { [%clk 0:01:21] } 39... Nxh7 { [%eval 2.79] [%clk 0:19:25] } 40. Rxh7?? { [%eval 0.0] } { Blunder. Rxd7 was best. } { [%clk 0:01:50] } 40... Rxg5?? { [%eval 6.16] } { Blunder. f2 was best. } { [%clk 0:19:42] } 41. Rh8+ { [%eval 5.9] [%clk 0:26:05] } 41... Bg8 { [%eval 5.85] [%clk 0:49:57] } 42. Rxd7 { [%eval 5.51] [%clk 0:26:25] } 42... Rf5?! { [%eval 7.94] } { Inaccuracy. f2 was best. } { [%clk 0:34:30] } 43. Rd8+ { [%eval 6.07] [%clk 0:25:35] } 43... Kf7 { [%eval 6.04] [%clk 0:34:53] } 44. Rdxg8 { [%eval 5.88] [%clk 0:25:11] } 44... Ke6 { [%eval 5.81] [%clk 0:34:28] } 45. Rf8 { [%eval 5.51] [%clk 0:24:04] } 1-0