Event: Round 9: Koelling, Jonah - Boettcher, Christian, Dr.
Date: 2024-12-07
White: Koelling, Jonah
WhiteElo: 2065
Black: Boettcher, Christian, Dr.
BlackElo: 2161
Result: 0-1
ECO: B27
Opening: Sicilian Defense: Hyperaccelerated Fianchetto
Variant: Standard

1. Nf3 { [%eval 0.14] [%clk 0:03:04] } 1... c5 { [%eval 0.25] [%clk 0:03:03] } 2. e4 { [%eval 0.2] [%clk 0:03:04] } 2... g6 { [%eval 0.46] [%clk 0:03:03] } 3. d4 { [%eval 0.31] [%clk 0:03:02] } 3... cxd4 { [%eval 0.44] [%clk 0:03:00] } 4. Nxd4 { [%eval 0.4] [%clk 0:03:03] } 4... Bg7 { [%eval 0.43] [%clk 0:03:01] } 5. Nc3 { [%eval 0.2] [%clk 0:03:04] } 5... Nc6 { [%eval 0.24] [%clk 0:03:01] } 6. Be3 { [%eval 0.16] [%clk 0:03:06] } 6... a6? { [%eval 1.84] } { Mistake. Nf6 was best. } { [%clk 0:02:57] } 7. Bc4? { [%eval 0.47] } { Mistake. Nd5 was best. } { [%clk 0:03:04] } 7... e6?! { [%eval 1.13] } { Inaccuracy. d6 was best. } { [%clk 0:02:58] } 8. Qd2 { [%eval 0.95] [%clk 0:03:01] } 8... Nge7 { [%eval 1.24] [%clk 0:02:39] } 9. O-O-O { [%eval 1.27] [%clk 0:02:59] } 9... b5 { [%eval 1.24] [%clk 0:02:29] } 10. Bb3 { [%eval 1.23] [%clk 0:03:00] } 10... Qc7 { [%eval 1.5] [%clk 0:02:24] } 11. h4 { [%eval 1.37] [%clk 0:02:58] } 11... h5 { [%eval 1.47] [%clk 0:02:23] } 12. f3 { [%eval 1.04] [%clk 0:02:59] } 12... Bb7 { [%eval 1.11] [%clk 0:02:23] } 13. Ndxb5?! { [%eval 0.39] } { Inaccuracy. Kb1 was best. } { [%clk 0:02:47] } 13... axb5 { [%eval 0.4] [%clk 0:02:21] } 14. Nxb5 { [%eval 0.54] [%clk 0:02:48] } 14... Qb8?! { [%eval 1.29] } { Inaccuracy. Qe5 was best. } { [%clk 0:02:10] } 15. Qxd7+ { [%eval 1.44] [%clk 0:02:43] } 15... Kf8 { [%eval 1.31] [%clk 0:02:12] } 16. Nd6?? { [%eval -1.13] } { Blunder. Bc5 was best. } { [%clk 0:02:27] } 16... Ba6 { [%eval -0.82] [%clk 0:01:57] } 17. Bc5?! { [%eval -1.61] } { Inaccuracy. f4 was best. } { [%clk 0:01:54] } 17... Ne5?? { [%eval 5.51] } { Blunder. Bh6+ was best. } { [%clk 0:01:43] } 18. Qa4?? { [%eval -3.09] } { Blunder. Qxe7+ was best. } { [%clk 0:01:20] } 18... Be2 { [%eval -2.85] [%clk 0:01:41] } 19. Qb4 { [%eval -2.82] [%clk 0:00:50] } 19... Qxb4 { [%eval -3.12] [%clk 0:01:41] } 20. Bxb4 { [%eval -3.11] [%clk 0:00:51] } 20... Bxd1 { [%eval -2.98] [%clk 0:01:42] } 21. Rxd1 { [%eval -2.98] [%clk 0:00:52] } 21... N7c6 { [%eval -2.74] [%clk 0:01:39] } 22. Bc5 { [%eval -2.64] [%clk 0:00:49] } 22... Kg8?! { [%eval -1.75] } { Inaccuracy. Bh6+ was best. } { [%clk 0:01:39] } 23. f4 { [%eval -1.85] [%clk 0:00:45] } 23... Ng4 { [%eval -2.0] [%clk 0:01:32] } 24. f5?! { [%eval -3.26] } { Inaccuracy. Bc4 was best. } { [%clk 0:00:36] } 24... Na5 { [%eval -3.23] [%clk 0:01:23] } 25. Ba4 { [%eval -3.83] [%clk 0:00:07] } 25... Rb8? { [%eval -2.27] } { Mistake. Nc4 was best. } { [%clk 0:01:13] } 26. b4?! { [%eval -2.96] } { Inaccuracy. c3 was best. } { [%clk 0:00:03] } 26... Nb7 { [%eval -2.35] [%clk 0:01:01] } 27. Nxb7 { [%eval -2.15] [%clk 0:00:04] } 27... Rxb7 { [%eval -2.29] [%clk 0:01:03] } 28. fxe6 { [%eval -2.33] [%clk 0:00:05] } 28... fxe6 { [%eval -2.42] [%clk 0:01:02] } 29. Bb3 { [%eval -2.46] [%clk 0:00:06] } 29... Kh7 { [%eval -2.46] [%clk 0:00:57] } 30. Bxe6 { [%eval -2.2] [%clk 0:00:05] } 30... Re8 { [%eval -1.73] [%clk 0:00:56] } 31. Bd5 { [%eval -1.96] [%clk 0:00:05] } 31... Rbb8 { [%eval -1.77] [%clk 0:00:50] } 32. a4 { [%eval -2.27] [%clk 0:00:06] } 32... Nf6 { [%eval -2.41] [%clk 0:00:50] } 33. Bc6 { [%eval -2.03] [%clk 0:00:06] } 33... Red8?? { [%eval 1.4] } { Blunder. Rxe4 was best. } { [%clk 0:00:48] } 34. Re1?? { [%eval -1.97] } { Blunder. Rxd8 was best. } { [%clk 0:00:06] } 34... Nd7 { [%eval -1.55] [%clk 0:00:44] } 35. Bxd7 { [%eval -1.34] [%clk 0:00:05] } 35... Rxd7 { [%eval -1.06] [%clk 0:00:45] } 36. a5?? { [%eval -5.21] } { Blunder. e5 was best. } { [%clk 0:00:04] } 36... Bc3 { [%eval -5.09] [%clk 0:00:45] } 37. Rf1 { [%eval -5.24] [%clk 0:00:04] } 37... Bxb4 { [%eval -5.07] [%clk 0:00:46] } 38. Bb6?! { [%eval -6.9] } { Inaccuracy. Bxb4 was best. } { [%clk 0:00:04] } 38... Ra8 { [%eval -5.4] [%clk 0:00:45] } 39. e5 { [%eval -5.9] [%clk 0:00:05] } 39... Bxa5 { [%eval -5.28] [%clk 0:00:46] } 40. Bc5?? { [%eval #-28] } { Checkmate is now unavoidable. Bxa5 was best. } { [%clk 0:00:06] } 40... Bc3 { [%eval -11.39] [%clk 0:00:43] } 0-1