Event: Round 4: Petersen, Henrik - Thier, Simon
Date: 2025-06-20
White: Petersen, Henrik
WhiteElo: 2240
Black: Thier, Simon
BlackElo: 2014
Result: 0-1
ECO: B40
Opening: Sicilian Defense: Delayed Alapin Variation, with e6
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:30:58] } 1... c5 { [%eval 0.25] [%clk 1:30:47] } 2. Nf3 { [%eval 0.2] [%clk 1:31:23] } 2... e6 { [%eval 0.28] [%clk 1:30:59] } 3. c3 { [%eval 0.06] [%clk 1:31:48] } 3... Nf6 { [%eval 0.2] [%clk 1:30:05] } 4. e5 { [%eval 0.25] [%clk 1:31:48] } 4... Nd5 { [%eval 0.22] [%clk 1:30:14] } 5. g3 { [%eval 0.0] [%clk 1:32:08] } 5... Nc6 { [%eval 0.06] [%clk 1:29:33] } 6. Bg2 { [%eval 0.01] [%clk 1:32:31] } 6... f5?! { [%eval 1.08] } { Inaccuracy. d6 was best. } { [%clk 1:29:38] } 7. exf6?! { [%eval 0.41] } { Inaccuracy. O-O was best. } { [%clk 1:30:56] } 7... Nxf6 { [%eval 0.45] [%clk 1:28:42] } 8. d4 { [%eval 0.33] [%clk 1:31:07] } 8... cxd4 { [%eval 0.75] [%clk 1:18:04] } 9. Nxd4?! { [%eval 0.11] } { Inaccuracy. cxd4 was best. } { [%clk 1:31:24] } 9... Bc5 { [%eval 0.2] [%clk 1:10:49] } 10. Nb3 { [%eval -0.19] [%clk 1:30:00] } 10... Bb6 { [%eval -0.21] [%clk 1:09:21] } 11. Qd6 { [%eval -0.26] [%clk 1:29:50] } 11... Qc7 { [%eval 0.19] [%clk 1:03:26] } 12. Qxc7 { [%eval 0.21] [%clk 1:28:37] } 12... Bxc7 { [%eval 0.24] [%clk 1:03:50] } 13. a4 { [%eval 0.13] [%clk 1:28:24] } 13... O-O { [%eval 0.17] [%clk 0:59:52] } 14. h3 { [%eval -0.02] [%clk 1:25:02] } 14... b6 { [%eval 0.14] [%clk 0:50:17] } 15. Na3 { [%eval 0.08] [%clk 1:21:24] } 15... Bb7 { [%eval 0.1] [%clk 0:46:06] } 16. O-O { [%eval 0.17] [%clk 1:19:20] } 16... Rae8 { [%eval 0.27] [%clk 0:43:44] } 17. a5?! { [%eval -0.33] } { Inaccuracy. Nb5 was best. } { [%clk 1:15:11] } 17... d5?! { [%eval 0.7] } { Inaccuracy. Ba6 was best. } { [%clk 0:42:58] } 18. Nb5 { [%eval 0.65] [%clk 1:15:05] } 18... Bb8 { [%eval 0.58] [%clk 0:41:31] } 19. a6?! { [%eval -0.06] } { Inaccuracy. Be3 was best. } { [%clk 1:15:09] } 19... Ba8 { [%eval 0.22] [%clk 0:40:51] } 20. Ra4 { [%eval 0.0] [%clk 1:04:15] } 20... Ne4 { [%eval 0.37] [%clk 0:39:13] } 21. c4 { [%eval 0.36] [%clk 0:59:52] } 21... Ne5 { [%eval 0.73] [%clk 0:38:20] } 22. cxd5 { [%eval 0.24] [%clk 0:52:17] } 22... exd5 { [%eval 0.34] [%clk 0:38:25] } 23. N3d4 { [%eval 0.19] [%clk 0:47:22] } 23... Nd3 { [%eval 0.36] [%clk 0:37:27] } 24. Bxe4? { [%eval -0.99] } { Mistake. Ra3 was best. } { [%clk 0:44:54] } 24... dxe4 { [%eval -1.01] [%clk 0:37:42] } 25. Ra3 { [%eval -1.08] [%clk 0:38:19] } 25... Bd5 { [%eval -1.09] [%clk 0:36:14] } 26. Nc3 { [%eval -1.13] [%clk 0:36:20] } 26... Ba8 { [%eval -1.08] [%clk 0:36:15] } 27. Ncb5 { [%eval -1.13] [%clk 0:32:53] } 27... Rf7 { [%eval -1.12] [%clk 0:35:48] } 28. Rc3 { [%eval -1.14] [%clk 0:30:12] } 28... Be5?! { [%eval -0.5] } { Inaccuracy. Bd5 was best. } { [%clk 0:36:00] } 29. f4 { [%eval -0.69] [%clk 0:28:14] } 29... exf3?! { [%eval 0.0] } { Inaccuracy. Ref8 was best. } { [%clk 0:30:33] } 30. Rxd3 { [%eval -0.04] [%clk 0:27:03] } 30... f2+ { [%eval -0.17] [%clk 0:23:53] } 31. Kh2 { [%eval -0.09] [%clk 0:27:02] } 31... h5 { [%eval 0.0] [%clk 0:24:10] } 32. Bf4?? { [%eval -5.65] } { Blunder. Ne2 was best. } { [%clk 0:19:56] } 32... Rxf4 { [%eval -5.61] [%clk 0:24:03] } 33. Re3 { [%eval -7.08] [%clk 0:18:03] } 33... Rff8 { [%eval -6.79] [%clk 0:23:32] } 34. h4?? { [%eval #-26] } { Checkmate is now unavoidable. Ne2 was best. } { [%clk 0:17:46] } 34... Bxd4 { [%eval -56.96] [%clk 0:23:45] } 35. Rxe8 { [%eval -11.14] [%clk 0:18:09] } 35... Rxe8 { [%eval -10.34] [%clk 0:24:10] } 0-1