Event: Porsgrunn Grand Prix 2023
Site: Campus Porsgrunn USN
Date: 2023-09-23
White: Anders Helgerud
WhiteElo: 1743
Black: Nicolai Maxime Østensen
BlackTitle: CM
BlackElo: 2216
Result: 0-1
ECO: A00
Opening: Grob Opening
Variant: Standard

1. g4? { [%eval -1.46] } { Mistake. e4 was best. } { [%clk 1:30:50] } 1... d5 { [%eval -1.28] [%clk 1:30:32] } 2. h3 { [%eval -1.77] [%clk 1:29:27] } 2... e5?! { [%eval -0.66] } { Inaccuracy. h5 was best. } { [%clk 1:30:40] } 3. Bg2?! { [%eval -1.38] } { Inaccuracy. d4 was best. } { [%clk 1:29:50] } 3... h5 { [%eval -0.9] [%clk 1:30:53] } 4. gxh5?! { [%eval -1.55] } { Inaccuracy. d4 was best. } { [%clk 1:30:07] } 4... Nf6 { [%eval -1.6] [%clk 1:31:01] } 5. h6 { [%eval -1.83] [%clk 1:30:26] } 5... gxh6 { [%eval -1.85] [%clk 1:31:07] } 6. c4 { [%eval -2.37] [%clk 1:30:22] } 6... c6?! { [%eval -1.6] } { Inaccuracy. Rg8 was best. } { [%clk 1:30:29] } 7. cxd5 { [%eval -1.86] [%clk 1:30:11] } 7... cxd5 { [%eval -1.4] [%clk 1:30:49] } 8. Nc3?! { [%eval -2.32] } { Inaccuracy. d4 was best. } { [%clk 1:30:29] } 8... Rg8 { [%eval -2.64] [%clk 1:30:25] } 9. Kf1 { [%eval -2.55] [%clk 1:29:36] } 9... Nc6?! { [%eval -1.77] } { Inaccuracy. Rxg2 was best. } { [%clk 1:30:08] } 10. d3 { [%eval -1.73] [%clk 1:29:54] } 10... Be6 { [%eval -1.94] [%clk 1:29:19] } 11. Bd2 { [%eval -1.8] [%clk 1:21:23] } 11... Qd7 { [%eval -1.56] [%clk 1:29:03] } 12. Rc1 { [%eval -1.76] [%clk 1:12:44] } 12... Be7 { [%eval -1.54] [%clk 1:26:03] } 13. a3 { [%eval -1.58] [%clk 1:00:48] } 13... Nd4?! { [%eval -0.75] } { Inaccuracy. d4 was best. } { [%clk 1:24:43] } 14. Nf3 { [%eval -0.72] [%clk 0:57:01] } 14... Nxf3 { [%eval -0.85] [%clk 1:22:19] } 15. exf3?! { [%eval -1.44] } { Inaccuracy. Bxf3 was best. } { [%clk 0:56:04] } 15... d4 { [%eval -1.57] [%clk 1:18:16] } 16. Ne4 { [%eval -1.68] [%clk 0:52:45] } 16... Nxe4 { [%eval -1.27] [%clk 1:18:24] } 17. fxe4 { [%eval -1.35] [%clk 0:52:55] } 17... Qb5 { [%eval -1.4] [%clk 1:18:40] } 18. Bb4 { [%eval -1.19] [%clk 0:44:26] } 18... Bxb4 { [%eval -1.35] [%clk 1:16:35] } 19. axb4 { [%eval -1.27] [%clk 0:44:10] } 19... Qxb4 { [%eval -1.23] [%clk 1:15:39] } 20. Qc2?! { [%eval -2.14] } { Inaccuracy. Bf3 was best. } { [%clk 0:43:35] } 20... Kf8?! { [%eval -1.52] } { Inaccuracy. Rg6 was best. } { [%clk 1:11:20] } 21. Rg1?? { [%eval -3.96] } { Blunder. Bf3 was best. } { [%clk 0:41:52] } 21... Rg6 { [%eval -3.95] [%clk 1:10:56] } 22. Qc5+ { [%eval -4.14] [%clk 0:39:00] } 22... Qxc5 { [%eval -4.06] [%clk 1:08:48] } 23. Rxc5 { [%eval -4.42] [%clk 0:37:28] } 23... Rc8 { [%eval -4.15] [%clk 1:08:50] } 24. Rxc8+ { [%eval -4.35] [%clk 0:37:37] } 24... Bxc8 { [%eval -4.18] [%clk 1:09:16] } 25. f4 { [%eval -4.25] [%clk 0:37:17] } 25... exf4 { [%eval -3.9] [%clk 1:09:10] } 26. Kf2 { [%eval -3.94] [%clk 0:37:41] } 26... Rg3 { [%eval -3.45] [%clk 1:09:27] } 27. Bf1? { [%eval -5.84] } { Mistake. Rc1 was best. } { [%clk 0:37:48] } 27... Bxh3 { [%eval -4.86] [%clk 1:09:28] } 28. Bxh3 { [%eval -5.05] [%clk 0:37:35] } 28... Rxh3 { [%eval -4.88] [%clk 1:09:56] } 0-1