Event: Round 7: Koykka, Pekka - Lahdelma, Henri
Date: 2024-03-28
White: Koykka, Pekka
WhiteTitle: IM
WhiteElo: 2348
Black: Lahdelma, Henri
BlackTitle: FM
BlackElo: 2358
Result: 1-0
ECO: A28
Opening: English Opening: Four Knights System, Nimzowitsch Variation
Variant: Standard

1. c4 { [%eval 0.16] [%clk 1:30:48] } 1... e5 { [%eval 0.25] [%clk 1:30:39] } 2. Nc3 { [%eval 0.08] [%clk 1:31:11] } 2... Nf6 { [%eval 0.07] [%clk 1:30:56] } 3. Nf3 { [%eval 0.0] [%clk 1:31:29] } 3... Nc6 { [%eval 0.11] [%clk 1:31:05] } 4. e4 { [%eval 0.0] [%clk 1:31:48] } 4... Bb4 { [%eval 0.15] [%clk 1:31:03] } 5. d3 { [%eval 0.0] [%clk 1:32:05] } 5... d6 { [%eval 0.03] [%clk 1:30:15] } 6. h3 { [%eval 0.0] [%clk 1:32:21] } 6... h6 { [%eval 0.06] [%clk 1:28:07] } 7. g3 { [%eval -0.14] [%clk 1:26:56] } 7... Be6 { [%eval -0.01] [%clk 1:24:44] } 8. Bg2 { [%eval -0.05] [%clk 1:23:18] } 8... Qd7 { [%eval 0.01] [%clk 1:11:12] } 9. Bd2 { [%eval -0.07] [%clk 1:20:08] } 9... Nh7 { [%eval 0.07] [%clk 1:07:06] } 10. a3 { [%eval 0.12] [%clk 1:15:10] } 10... Bxc3 { [%eval 0.04] [%clk 1:04:11] } 11. Bxc3 { [%eval 0.07] [%clk 1:12:40] } 11... Ng5?! { [%eval 0.71] } { Inaccuracy. O-O was best. } { [%clk 1:03:44] } 12. Ng1 { [%eval 0.63] [%clk 1:11:54] } 12... f5 { [%eval 0.6] [%clk 1:03:26] } 13. f4 { [%eval 0.67] [%clk 0:56:07] } 13... Nf7 { [%eval 0.69] [%clk 0:57:58] } 14. Qb3 { [%eval 0.23] [%clk 0:47:33] } 14... O-O-O { [%eval 0.3] [%clk 0:54:02] } 15. O-O-O { [%eval 0.32] [%clk 0:45:52] } 15... g5?? { [%eval 2.66] } { Blunder. fxe4 was best. } { [%clk 0:52:16] } 16. g4 { [%eval 2.67] [%clk 0:43:15] } 16... fxg4 { [%eval 2.65] [%clk 0:45:54] } 17. f5 { [%eval 2.67] [%clk 0:43:30] } 17... Bxf5 { [%eval 2.92] [%clk 0:46:20] } 18. exf5 { [%eval 2.95] [%clk 0:43:53] } 18... gxh3 { [%eval 2.97] [%clk 0:46:45] } 19. Bd5 { [%eval 2.57] [%clk 0:38:58] } 19... Qxf5?! { [%eval 3.53] } { Inaccuracy. Rde8 was best. } { [%clk 0:46:47] } 20. c5 { [%eval 3.46] [%clk 0:35:02] } 20... Qf4+ { [%eval 3.69] [%clk 0:35:03] } 21. Kb1 { [%eval 3.56] [%clk 0:24:19] } 21... h2 { [%eval 3.93] [%clk 0:30:29] } 22. Nh3 { [%eval 4.04] [%clk 0:23:23] } 22... Qg3 { [%eval 3.95] [%clk 0:30:52] } 23. Be1 { [%eval 3.96] [%clk 0:19:22] } 23... Qe3 { [%eval 3.86] [%clk 0:29:47] } 24. Bf2 { [%eval 3.76] [%clk 0:19:19] } 24... Qe2 { [%eval 4.22] [%clk 0:26:54] } 25. Rhe1 { [%eval 4.11] [%clk 0:16:12] } 25... Qh5 { [%eval 4.08] [%clk 0:27:15] } 26. Bxf7 { [%eval 4.06] [%clk 0:16:22] } 26... Qf3 { [%eval 4.1] [%clk 0:27:43] } 27. Be6+ { [%eval 4.17] [%clk 0:15:59] } 27... Kb8 { [%eval 4.04] [%clk 0:27:51] } 28. Bd5 { [%eval 4.11] [%clk 0:14:53] } 28... Qxh3?! { [%eval 5.25] } { Inaccuracy. Na5 was best. } { [%clk 0:27:47] } 29. Bxc6 { [%eval 5.24] [%clk 0:14:57] } 29... Qc8 { [%eval 5.2] [%clk 0:28:12] } 30. Rh1 { [%eval 4.99] [%clk 0:14:24] } 30... h5 { [%eval 5.14] [%clk 0:27:29] } 31. Rxh2 { [%eval 4.98] [%clk 0:14:46] } 31... h4 { [%eval 5.03] [%clk 0:26:11] } 32. Rg1 { [%eval 4.74] [%clk 0:14:51] } 32... Rdg8 { [%eval 5.32] [%clk 0:26:23] } 33. Bd5 { [%eval 4.9] [%clk 0:14:42] } 33... Rg6 { [%eval 5.51] [%clk 0:26:00] } 34. Be4 { [%eval 5.36] [%clk 0:12:06] } 34... Rgg8 { [%eval 6.21] [%clk 0:26:06] } 35. cxd6 { [%eval 6.59] [%clk 0:10:06] } 35... cxd6 { [%eval 6.64] [%clk 0:26:20] } 36. Qa4 { [%eval 6.57] [%clk 0:10:23] } 36... a6 { [%eval 6.56] [%clk 0:26:37] } 37. Qb4 { [%eval 6.12] [%clk 0:10:34] } 1-0