Event: Round 1: Koehler, Keanu Nick - Sem de Haan
Date: 2025-01-02
White: Koehler, Keanu Nick
Black: Sem de Haan
Result: 1-0
ECO: C25
Opening: Vienna Gambit, with Max Lange Defense
Variant: Standard
TimeControl: 90+30

1. e4 { [%eval 0.18] [%clk 1:30:59] } 1... e5 { [%eval 0.21] [%clk 1:30:41] } 2. Nc3 { [%eval 0.06] [%clk 1:31:26] } 2... Nc6 { [%eval 0.07] [%clk 1:30:49] } 3. f4 { [%eval -0.34] [%clk 1:31:42] } 3... Nf6?? { [%eval 1.47] } { Blunder. exf4 was best. } { [%clk 1:30:47] } 4. fxe5 { [%eval 1.56] [%clk 1:31:45] } 4... Nxe5 { [%eval 1.6] [%clk 1:30:55] } 5. d4 { [%eval 1.47] [%clk 1:31:41] } 5... Nc6 { [%eval 1.65] [%clk 1:30:16] } 6. e5 { [%eval 1.6] [%clk 1:30:16] } 6... Ng8 { [%eval 1.63] [%clk 1:30:03] } 7. Nf3 { [%eval 1.58] [%clk 1:29:58] } 7... d6?! { [%eval 2.68] } { Inaccuracy. d5 was best. } { [%clk 1:29:02] } 8. Bb5 { [%eval 2.39] [%clk 1:29:17] } 8... Bd7 { [%eval 2.78] [%clk 1:29:07] } 9. Bxc6?! { [%eval 1.95] } { Inaccuracy. Qe2 was best. } { [%clk 1:28:39] } 9... bxc6 { [%eval 1.78] [%clk 1:28:42] } 10. Bf4 { [%eval 1.45] [%clk 1:28:24] } 10... h6 { [%eval 2.05] [%clk 1:27:33] } 11. Qe2?! { [%eval 1.37] } { Inaccuracy. d5 was best. } { [%clk 1:27:21] } 11... Be6?! { [%eval 2.18] } { Inaccuracy. d5 was best. } { [%clk 1:27:04] } 12. O-O-O?! { [%eval 1.55] } { Inaccuracy. d5 was best. } { [%clk 1:26:35] } 12... Ne7 { [%eval 1.8] [%clk 1:26:33] } 13. Rd2? { [%eval 0.42] } { Mistake. exd6 was best. } { [%clk 1:24:17] } 13... Nd5 { [%eval 0.41] [%clk 1:25:52] } 14. Nxd5 { [%eval 0.48] [%clk 1:24:08] } 14... cxd5 { [%eval 0.53] [%clk 1:26:15] } 15. Qb5+ { [%eval 0.33] [%clk 1:22:40] } 15... Qd7 { [%eval 0.32] [%clk 1:26:26] } 16. Qxd7+?! { [%eval -0.23] } { Inaccuracy. Qb7 was best. } { [%clk 1:21:43] } 16... Bxd7 { [%eval 0.0] [%clk 1:26:39] } 17. Re2 { [%eval 0.0] [%clk 1:21:26] } 17... O-O-O { [%eval 0.11] [%clk 1:26:22] } 18. Re3 { [%eval 0.0] [%clk 1:20:15] } 18... Bb5 { [%eval 0.27] [%clk 1:21:13] } 19. h4 { [%eval 0.06] [%clk 1:19:07] } 19... Be7 { [%eval 0.29] [%clk 1:18:42] } 20. exd6 { [%eval 0.41] [%clk 1:17:52] } 20... Bxd6 { [%eval 0.36] [%clk 1:18:53] } 21. Bxd6 { [%eval 0.37] [%clk 1:17:57] } 21... Rxd6 { [%eval 0.37] [%clk 1:19:12] } 22. Ne5 { [%eval 0.37] [%clk 1:17:34] } 22... Rf8 { [%eval 0.55] [%clk 1:19:00] } 23. Rhh3 { [%eval 0.55] [%clk 1:16:43] } 23... Re6 { [%eval 0.75] [%clk 1:14:51] } 24. Kd2 { [%eval 0.41] [%clk 1:15:54] } 24... f5?? { [%eval 2.17] } { Blunder. Rfe8 was best. } { [%clk 1:14:24] } 25. Nd3?? { [%eval 0.0] } { Blunder. Rhg3 was best. } { [%clk 1:15:16] } 25... Re4 { [%eval 0.0] [%clk 1:12:58] } 26. h5?! { [%eval -0.55] } { Inaccuracy. Rhg3 was best. } { [%clk 1:13:38] } 26... Kd8?! { [%eval 0.16] } { Inaccuracy. Rxd4 was best. } { [%clk 1:11:03] } 27. Rxe4?? { [%eval -1.69] } { Blunder. Reg3 was best. } { [%clk 1:11:07] } 27... dxe4?? { [%eval 2.57] } { Blunder. fxe4 was best. } { [%clk 1:10:23] } 28. Nc5?? { [%eval 0.6] } { Blunder. Nf4 was best. } { [%clk 1:10:54] } 28... Ke7 { [%eval 0.89] [%clk 1:10:03] } 29. Re3?! { [%eval 0.0] } { Inaccuracy. Ra3 was best. } { [%clk 1:09:40] } 29... Kf6? { [%eval 1.56] } { Mistake. Rd8 was best. } { [%clk 1:09:26] } 30. a4?? { [%eval -0.17] } { Blunder. c4 was best. } { [%clk 1:09:17] } 30... Bc6 { [%eval 0.0] [%clk 1:09:47] } 31. Re1 { [%eval -0.25] [%clk 1:08:40] } 31... Kg5?? { [%eval 4.54] } { Blunder. Rf7 was best. } { [%clk 1:09:50] } 32. Ne6+ { [%eval 4.61] [%clk 1:08:39] } 32... Kxh5 { [%eval 4.46] [%clk 1:09:45] } 33. Nxf8 { [%eval 4.5] [%clk 1:08:55] } 33... g5 { [%eval 4.78] [%clk 1:09:57] } 34. Ne6 { [%eval 4.07] [%clk 1:08:50] } 34... Kg4 { [%eval 4.57] [%clk 1:09:47] } 35. c4 { [%eval 4.34] [%clk 1:06:54] } 35... Bxa4 { [%eval 5.01] [%clk 1:09:04] } 36. Nc5 { [%eval 5.19] [%clk 1:06:58] } 36... Be8 { [%eval 5.42] [%clk 1:08:52] } 37. Nxe4 { [%eval 5.29] [%clk 1:07:10] } 37... Bc6 { [%eval 5.95] [%clk 1:07:10] } 38. d5 { [%eval 5.71] [%clk 1:06:46] } 38... fxe4 { [%eval 8.81] [%clk 1:06:24] } 39. dxc6 { [%eval 8.11] [%clk 1:07:01] } 39... Kf4 { [%eval 9.26] [%clk 1:06:38] } 40. Rh1 { [%eval 9.17] [%clk 1:06:28] } 40... e3+ { [%eval 9.14] [%clk 1:05:36] } 41. Ke2 { [%eval 6.08] [%clk 1:06:39] } 41... a5?? { [%eval #17] } { Checkmate is now unavoidable. Ke4 was best. } { [%clk 1:04:50] } 42. Rxh6 { [%eval #16] [%clk 1:06:42] } 42... a4 { [%eval #11] [%clk 1:04:39] } 43. Rh7 { [%eval #13] [%clk 1:06:56] } 43... Ke4 { [%eval #9] [%clk 1:04:41] } 44. Rxc7 { [%eval #9] [%clk 1:06:48] } 44... g4 { [%eval #8] [%clk 1:04:27] } 45. Re7+ { [%eval #7] [%clk 1:07:02] } 45... Kd4 { [%eval #7] [%clk 1:04:21] } 46. c7 { [%eval #6] [%clk 1:07:24] } 46... a3 { [%eval #6] [%clk 1:04:23] } 47. bxa3 { [%eval #5] [%clk 1:07:40] } 47... g3 { [%eval #5] [%clk 1:04:29] } 48. c8=Q { [%eval #4] [%clk 1:07:57] } 48... Kc3 { [%eval #4] [%clk 1:04:39] } 49. Rxe3+ { [%eval #4] [%clk 1:08:13] } 49... Kc2 { [%eval #2] [%clk 1:04:53] } 50. Qd8 { [%eval #3] [%clk 1:08:26] } 50... Kb2 { [%eval #3] [%clk 1:04:39] } 51. Qd2+ { [%clk 1:08:44] } 51... Ka1 { [%clk 1:04:48] } 52. Rf3 { [%clk 1:08:59] } 52... Kb1 { [%clk 1:05:05] } 53. Rf1# { [%clk 1:08:59] } 1-0