[Event "9 rounds modified Swiss in one large group. There will be the possibility of achieving GM- and IM-norms."] [Site "https://lichess.org/study/4NeuvVWy/NrMzy6qx"] [Date "2023.07.25"] [Round "3.10"] [White "Ingebretsen, Jens E."] [Black "Steffens, Olaf"] [Result "1-0"] [WhiteElo "2342"] [BlackElo "2108"] [Variant "Standard"] [ECO "A10"] [Opening "English Opening"] [Annotator "https://lichess.org/broadcast/-/-/4NeuvVWy"] [StudyName "Round 3"] [ChapterName "Ingebretsen, Jens E. - Steffens, Olaf"] [Source "https://lichess.org/study/4NeuvVWy/NrMzy6qx"] [Orientation "white"] 1. c4 { [%eval 0.23] [%clk 1:30:56] } 1... b6 { [%eval 0.34] [%clk 1:25:14] } 2. Nc3 { [%eval 0.38] [%clk 1:31:13] } 2... Ba6 { [%eval 0.79] [%clk 1:25:17] } 3. e4 { [%eval 0.78] [%clk 1:30:48] } 3... c5 { [%eval 0.98] [%clk 1:25:25] } 4. Nf3 { [%eval 0.73] [%clk 1:30:43] } 4... e6 { [%eval 0.97] [%clk 1:25:31] } 5. d4 { [%eval 0.95] [%clk 1:30:30] } 5... cxd4 { [%eval 0.8] [%clk 1:25:31] } 6. Nxd4 { [%eval 1.03] [%clk 1:30:51] } 6... Nc6 { [%eval 1.03] [%clk 1:25:14] } 7. Nc2 { [%eval 0.82] [%clk 1:30:49] } 7... Bc5 { [%eval 0.81] [%clk 1:23:19] } 8. Be2 { [%eval 0.85] [%clk 1:30:21] } 8... Qh4 { [%eval 1.2] [%clk 1:19:13] } 9. Be3 { [%eval 1.22] [%clk 1:29:55] } 9... Nf6? { [%eval 3.01] } { Mistake. Rd8 was best. } { [%clk 1:07:29] } (9... Rd8 10. Qd2) 10. g3 { [%eval 3.12] [%clk 1:25:04] } 10... Qh3 { [%eval 3.02] [%clk 1:05:41] } 11. Qd2? { [%eval 1.13] } { Mistake. Bxc5 was best. } { [%clk 1:25:32] } (11. Bxc5 bxc5 12. Qd6 Rc8 13. O-O-O e5 14. Qxc5 d5 15. exd5 Nd4 16. Qa3 Nxc2 17. Kxc2 Bxc4) 11... O-O { [%eval 0.97] [%clk 0:51:04] } 12. O-O-O { [%eval 0.99] [%clk 1:24:26] } 12... Be7 { [%eval 1.14] [%clk 0:31:56] } 13. f4 { [%eval 0.97] [%clk 1:21:47] } 13... Ng4 { [%eval 0.96] [%clk 0:29:06] } 14. Bg1 { [%eval 0.87] [%clk 1:21:03] } 14... Rfd8 { [%eval 1.18] [%clk 0:23:18] } 15. Bf1 { [%eval 1.28] [%clk 1:18:15] } 15... Qh6 { [%eval 1.19] [%clk 0:20:46] } 16. h3 { [%eval 1.22] [%clk 1:17:51] } 16... Rac8 { [%eval 1.25] [%clk 0:08:10] } 17. Be2 { [%eval 1.2] [%clk 1:15:38] } 17... f5?? { [%eval 3.35] } { Blunder. Nf6 was best. } { [%clk 0:03:42] } (17... Nf6 18. g4 Nxe4 19. Nxe4 d5 20. g5 Qg6 21. Nc3 dxc4 22. Qe1 Bb7 23. Rh2 b5 24. a3) 18. Bxb6 { [%eval 3.4] [%clk 1:10:38] } 18... axb6 { [%eval 3.35] [%clk 0:03:01] } 19. hxg4 { [%eval 3.39] [%clk 1:11:00] } 19... Qf6 { [%eval 3.5] [%clk 0:02:59] } 20. gxf5 { [%eval 3.04] [%clk 1:10:36] } 20... d5? { [%eval 5.14] } { Mistake. Na5 was best. } { [%clk 0:02:26] } (20... Na5 21. g4 Bxc4 22. Bxc4 Nxc4 23. g5 Qf7 24. Qh2 g6 25. Kb1 b5 26. fxg6 Qxg6 27. f5) 21. e5 { [%eval 4.39] [%clk 1:08:28] } 21... Qxf5 { [%eval 4.83] [%clk 0:01:00] } 22. Bd3 { [%eval 4.85] [%clk 1:08:25] } 22... Qg4 { [%eval 4.96] [%clk 0:00:59] } 23. Ne3 { [%eval 4.96] [%clk 1:05:39] } 23... Qf3 { [%eval 5.12] [%clk 0:00:57] } 24. Rdf1 { [%eval 4.85] [%clk 1:00:46] } 24... Qxg3 { [%eval 4.85] [%clk 0:01:15] } 25. Rfg1 { [%eval 5.16] [%clk 0:59:42] } 25... Qf3?! { [%eval 6.79] } { Inaccuracy. Qxg1+ was best. } { [%clk 0:01:29] } (25... Qxg1+ 26. Rxg1 Bc5 27. Kb1 Bxc4 28. Bxc4 dxc4 29. Qg2 Rc7 30. Qh3 Bxe3 31. Qxe3 Nd4 32. f5) 26. Rxh7 { [%eval 7.63] [%clk 0:58:39] } 26... Bf8 { [%eval 7.15] [%clk 0:01:12] } 27. Bg6 { [%eval #7] [%clk 0:58:41] } 27... Qxf4 { [%eval #6] [%clk 0:00:51] } 28. Rgh1 { [%eval #5] [%clk 0:58:28] } 28... Qh6 { [%eval #5] [%clk 0:00:50] } 29. R1xh6 { [%eval #4] [%clk 0:58:31] } 29... gxh6 { [%eval #4] [%clk 0:01:18] } 30. Ng4 { [%eval #3] [%clk 0:58:53] } 30... dxc4 { [%eval #1] [%clk 0:01:00] } 31. Nf6# { [%clk 0:59:15] } 1-0