Event: Round 1: Petzold, Johannes Julius - Derr, Oleg
Date: 2024-08-01
White: Petzold, Johannes Julius
WhiteElo: 1983
Black: Derr, Oleg
BlackElo: 1943
Result: 0-1
ECO: B33
Opening: Sicilian Defense: Four Knights Variation, Cobra Variation
Variant: Standard

1. e4 { [%eval 0.15] [%clk 1:30:57] } 1... c5 { [%eval 0.25] [%clk 1:30:57] } 2. Nf3 { [%eval 0.22] [%clk 1:31:23] } 2... Nc6 { [%eval 0.31] [%clk 1:31:23] } 3. d4 { [%eval 0.21] [%clk 1:31:48] } 3... cxd4 { [%eval 0.34] [%clk 1:31:49] } 4. Nxd4 { [%eval 0.37] [%clk 1:32:14] } 4... Nf6 { [%eval 0.36] [%clk 1:32:15] } 5. Nc3 { [%eval 0.25] [%clk 1:32:40] } 5... e6 { [%eval 0.38] [%clk 1:32:41] } 6. Ndb5 { [%eval 0.25] [%clk 1:32:54] } 6... Bc5 { [%eval 0.4] [%clk 1:33:03] } 7. Nd6+ { [%eval 0.26] [%clk 1:32:16] } 7... Ke7 { [%eval 0.25] [%clk 1:33:26] } 8. Nc4? { [%eval -0.98] } { Mistake. Bf4 was best. } { [%clk 1:08:54] } 8... d5 { [%eval -0.84] [%clk 1:28:13] } 9. e5?! { [%eval -1.6] } { Inaccuracy. Nd2 was best. } { [%clk 0:54:57] } 9... Ne8? { [%eval -0.37] } { Mistake. Nd7 was best. } { [%clk 1:21:40] } 10. Nd2?! { [%eval -1.01] } { Inaccuracy. Na4 was best. } { [%clk 0:50:17] } 10... Nxe5 { [%eval -0.9] [%clk 1:20:53] } 11. Nb3 { [%eval -1.0] [%clk 0:49:27] } 11... Bb6 { [%eval -0.99] [%clk 1:17:37] } 12. Qh5 { [%eval -1.37] [%clk 0:41:45] } 12... Ng6 { [%eval -1.37] [%clk 1:14:55] } 13. Bd3 { [%eval -1.33] [%clk 0:39:28] } 13... Nf6 { [%eval -1.27] [%clk 1:10:26] } 14. Bg5 { [%eval -1.1] [%clk 0:39:13] } 14... Kf8 { [%eval -1.11] [%clk 0:58:50] } 15. Qe2 { [%eval -1.07] [%clk 0:31:00] } 15... h6 { [%eval -1.2] [%clk 0:56:37] } 16. Bd2 { [%eval -1.17] [%clk 0:29:53] } 16... Bd7 { [%eval -0.82] [%clk 0:50:59] } 17. O-O-O { [%eval -0.87] [%clk 0:28:41] } 17... Ne7 { [%eval -0.6] [%clk 0:36:25] } 18. g4 { [%eval -0.8] [%clk 0:23:31] } 18... d4 { [%eval -0.62] [%clk 0:33:52] } 19. Ne4 { [%eval -0.79] [%clk 0:23:48] } 19... Nfd5 { [%eval -0.97] [%clk 0:34:00] } 20. g5 { [%eval -1.24] [%clk 0:19:38] } 20... h5?! { [%eval -0.52] } { Inaccuracy. hxg5 was best. } { [%clk 0:32:21] } 21. Bc4? { [%eval -2.0] } { Mistake. Nec5 was best. } { [%clk 0:10:19] } 21... Bc6?! { [%eval -0.97] } { Inaccuracy. Qc7 was best. } { [%clk 0:30:17] } 22. Rhe1 { [%eval -1.03] [%clk 0:09:03] } 22... Rc8?! { [%eval -0.37] } { Inaccuracy. Ng6 was best. } { [%clk 0:26:35] } 23. Bxd5?! { [%eval -1.43] } { Inaccuracy. Qd3 was best. } { [%clk 0:07:01] } 23... Qxd5?! { [%eval -0.39] } { Inaccuracy. Bxd5 was best. } { [%clk 0:24:54] } 24. Bb4 { [%eval -0.3] [%clk 0:06:22] } 24... Bb5?! { [%eval 0.71] } { Inaccuracy. a5 was best. } { [%clk 0:23:30] } 25. Qf3?? { [%eval -1.2] } { Blunder. Qd2 was best. } { [%clk 0:04:50] } 25... Qc4 { [%eval -1.22] [%clk 0:21:56] } 26. Bxe7+ { [%eval -1.41] [%clk 0:03:51] } 26... Kxe7 { [%eval -1.31] [%clk 0:22:21] } 27. Rd2 { [%eval -1.41] [%clk 0:03:59] } 27... a5?? { [%eval 0.27] } { Blunder. Rcd8 was best. } { [%clk 0:18:28] } 28. g6 { [%eval 0.0] [%clk 0:02:59] } 28... f6 { [%eval 0.0] [%clk 0:18:45] } 29. Nxf6?? { [%eval -3.46] } { Blunder. Ng3 was best. } { [%clk 0:02:46] } 29... gxf6 { [%eval -3.48] [%clk 0:18:27] } 30. Qxb7+ { [%eval -3.43] [%clk 0:02:29] } 30... Qc7 { [%eval -3.42] [%clk 0:18:46] } 31. Qd5 { [%eval -3.77] [%clk 0:02:52] } 31... Qc6 { [%eval -3.69] [%clk 0:17:30] } 32. Qf5 { [%eval -4.21] [%clk 0:00:47] } 32... d3 { [%eval -3.81] [%clk 0:14:33] } 33. g7 { [%eval -4.68] [%clk 0:00:36] } 33... Rhg8 { [%eval -4.65] [%clk 0:14:33] } 0-1