Event: Round 22: Koehne, Arno - Boettcher, Christian, Dr.
Date: 2024-12-07
White: Koehne, Arno
WhiteElo: 1894
Black: Boettcher, Christian, Dr.
BlackElo: 2161
Result: 0-1
ECO: A85
Opening: Dutch Defense: Queen's Knight Variation
Variant: Standard

1. d4 { [%eval 0.17] [%clk 0:03:04] } 1... f5 { [%eval 0.47] [%clk 0:03:04] } 2. c4 { [%eval 0.47] [%clk 0:03:05] } 2... Nf6 { [%eval 0.42] [%clk 0:03:05] } 3. Nc3 { [%eval 0.4] [%clk 0:03:06] } 3... g6 { [%eval 0.49] [%clk 0:03:06] } 4. Nf3 { [%eval 0.5] [%clk 0:03:06] } 4... Bg7 { [%eval 0.48] [%clk 0:03:07] } 5. g3 { [%eval 0.46] [%clk 0:02:58] } 5... O-O { [%eval 0.43] [%clk 0:03:08] } 6. Bg2 { [%eval 0.4] [%clk 0:03:00] } 6... d6 { [%eval 0.42] [%clk 0:03:09] } 7. O-O { [%eval 0.4] [%clk 0:02:58] } 7... Qe8 { [%eval 0.53] [%clk 0:03:09] } 8. d5 { [%eval 0.47] [%clk 0:02:57] } 8... a5 { [%eval 0.69] [%clk 0:03:10] } 9. Nd4 { [%eval 0.34] [%clk 0:02:55] } 9... Na6 { [%eval 0.37] [%clk 0:03:11] } 10. a3 { [%eval 0.15] [%clk 0:02:51] } 10... Bd7 { [%eval 0.25] [%clk 0:03:11] } 11. Re1?! { [%eval -0.52] } { Inaccuracy. Rb1 was best. } { [%clk 0:02:49] } 11... Nc5 { [%eval -0.29] [%clk 0:03:09] } 12. Bg5 { [%eval -0.82] [%clk 0:02:43] } 12... Qf7 { [%eval -0.45] [%clk 0:03:05] } 13. Bxf6 { [%eval -0.45] [%clk 0:02:40] } 13... Qxf6 { [%eval -0.44] [%clk 0:03:05] } 14. e3 { [%eval -0.49] [%clk 0:02:33] } 14... a4 { [%eval -0.19] [%clk 0:02:56] } 15. Rb1 { [%eval -0.65] [%clk 0:02:29] } 15... g5 { [%eval -0.18] [%clk 0:02:47] } 16. Ndb5 { [%eval -0.57] [%clk 0:02:10] } 16... c6 { [%eval -0.25] [%clk 0:02:34] } 17. dxc6 { [%eval -0.66] [%clk 0:02:02] } 17... bxc6 { [%eval -0.6] [%clk 0:02:32] } 18. Nd4 { [%eval -0.61] [%clk 0:02:03] } 18... Rfc8 { [%eval -0.75] [%clk 0:02:30] } 19. Qc2?! { [%eval -1.59] } { Inaccuracy. b4 was best. } { [%clk 0:01:18] } 19... e5 { [%eval -1.56] [%clk 0:02:23] } 20. Nde2 { [%eval -1.41] [%clk 0:01:09] } 20... e4 { [%eval -1.49] [%clk 0:02:15] } 21. Nd4 { [%eval -1.65] [%clk 0:01:08] } 21... Nd3? { [%eval -0.06] } { Mistake. Rf8 was best. } { [%clk 0:02:10] } 22. Red1 { [%eval -0.03] [%clk 0:01:05] } 22... Ne5 { [%eval 0.33] [%clk 0:02:11] } 23. Qe2?? { [%eval -1.89] } { Blunder. Nxa4 was best. } { [%clk 0:01:00] } 23... Qf7 { [%eval -1.44] [%clk 0:02:07] } 24. Rbc1?! { [%eval -2.47] } { Inaccuracy. f3 was best. } { [%clk 0:00:50] } 24... Bf8?! { [%eval -1.64] } { Inaccuracy. Rcb8 was best. } { [%clk 0:01:45] } 25. Bf1 { [%eval -2.02] [%clk 0:00:42] } 25... c5?! { [%eval -1.37] } { Inaccuracy. Rcb8 was best. } { [%clk 0:01:30] } 26. Ndb5 { [%eval -1.72] [%clk 0:00:42] } 26... Nf3+?! { [%eval -1.12] } { Inaccuracy. Rd8 was best. } { [%clk 0:01:31] } 27. Kh1 { [%eval -1.09] [%clk 0:00:33] } 27... Qh5 { [%eval -1.02] [%clk 0:01:22] } 28. h3 { [%eval -1.08] [%clk 0:00:33] } 28... f4?? { [%eval 1.29] } { Blunder. Qh6 was best. } { [%clk 0:01:12] } 29. Nxd6?? { [%eval #-7] } { Checkmate is now unavoidable. Nxe4 was best. } { [%clk 0:00:26] } 29... Bxh3 { [%eval #-6] [%clk 0:01:08] } 0-1