Event: DEM U18 2025
Site: Willingen GER
Date: 2025-06-14
White: Petzold, Johannes Julius
WhiteElo: 1986
Black: Sieber, Bert
BlackElo: 1996
Result: 0-1
ECO: B43
Opening: Sicilian Defense: Kan Variation, Wing Attack
Variant: Standard
Termination: normal

1. e4 { [%eval 0.18] [%clk 1:30:58] } 1... c5 { [%eval 0.25] [%clk 1:30:56] } 2. Nf3 { [%eval 0.2] [%clk 1:31:18] } 2... e6 { [%eval 0.28] [%clk 1:31:19] } 3. d4 { [%eval 0.4] [%clk 1:31:41] } 3... cxd4 { [%eval 0.29] [%clk 1:31:43] } 4. Nxd4 { [%eval 0.23] [%clk 1:32:08] } 4... a6 { [%eval 0.42] [%clk 1:32:08] } 5. Nc3 { [%eval 0.35] [%clk 1:31:31] } 5... b5 { [%eval 0.24] [%clk 1:32:26] } 6. Bd3 { [%eval 0.31] [%clk 1:30:23] } 6... Bb7 { [%eval 0.3] [%clk 1:32:03] } 7. a3 { [%eval 0.07] [%clk 1:28:48] } 7... Qc7 { [%eval 0.17] [%clk 1:27:31] } 8. Qe2 { [%eval 0.11] [%clk 1:25:23] } 8... Nc6 { [%eval 0.27] [%clk 1:19:55] } 9. Be3 { [%eval 0.0] [%clk 1:21:01] } 9... Bd6 { [%eval 0.18] [%clk 1:00:29] } 10. Rd1 { [%eval -0.15] [%clk 1:08:17] } 10... Be5 { [%eval -0.05] [%clk 0:53:54] } 11. Nxc6 { [%eval -0.11] [%clk 1:06:35] } 11... Bxc6 { [%eval -0.01] [%clk 0:54:08] } 12. h3 { [%eval -0.28] [%clk 0:49:26] } 12... Ne7 { [%eval -0.25] [%clk 0:51:11] } 13. O-O { [%eval -0.3] [%clk 0:48:45] } 13... Ng6?! { [%eval 0.28] } { Inaccuracy. O-O was best. } { [%clk 0:44:32] } 14. g3?! { [%eval -0.35] } { Inaccuracy. Nd5 was best. } { [%clk 0:41:45] } 14... O-O { [%eval -0.28] [%clk 0:22:03] } 15. f4 { [%eval -0.35] [%clk 0:40:28] } 15... Bxc3 { [%eval -0.35] [%clk 0:22:05] } 16. bxc3 { [%eval -0.43] [%clk 0:40:54] } 16... f6 { [%eval -0.26] [%clk 0:21:59] } 17. Qh5 { [%eval -0.67] [%clk 0:29:28] } 17... Bb7 { [%eval -0.51] [%clk 0:19:41] } 18. e5?? { [%eval -3.4] } { Blunder. Qc5 was best. } { [%clk 0:24:22] } 18... f5? { [%eval -1.47] } { Mistake. Qc6 was best. } { [%clk 0:18:52] } 19. Be2?! { [%eval -2.2] } { Inaccuracy. Qe2 was best. } { [%clk 0:21:06] } 19... Qxc3 { [%eval -2.26] [%clk 0:15:37] } 20. Rd3 { [%eval -2.28] [%clk 0:21:34] } 20... Qc7 { [%eval -2.1] [%clk 0:15:33] } 21. Rfd1? { [%eval -4.24] } { Mistake. Bf3 was best. } { [%clk 0:21:43] } 21... Qc6 { [%eval -4.47] [%clk 0:14:56] } 22. Kf2 { [%eval -4.42] [%clk 0:17:02] } 22... Qg2+ { [%eval -4.36] [%clk 0:13:47] } 23. Ke1 { [%eval -4.36] [%clk 0:17:27] } 23... Qxg3+ { [%eval -4.18] [%clk 0:12:27] } 24. Bf2 { [%eval -4.64] [%clk 0:17:52] } 24... Qxf4 { [%eval -4.6] [%clk 0:12:29] } 25. Rxd7 { [%eval -4.52] [%clk 0:17:01] } 25... Bd5 { [%eval -4.64] [%clk 0:12:18] } 26. c4 { [%eval -5.32] [%clk 0:12:00] } 26... bxc4 { [%eval -5.27] [%clk 0:11:56] } 27. Bb6?! { [%eval -6.8] } { Inaccuracy. R7xd5 was best. } { [%clk 0:10:36] } 27... c3 { [%eval -6.64] [%clk 0:09:48] } 28. Rd3 { [%eval -8.31] [%clk 0:10:07] } 28... c2 { [%eval -8.59] [%clk 0:09:04] } 29. Be3 { [%eval -10.75] [%clk 0:10:13] } 29... c1=Q+?! { [%eval -6.92] } { Inaccuracy. Qg3+ was best. } { [%clk 0:09:14] } 30. Bxc1 { [%eval -7.22] [%clk 0:10:39] } 30... Qxc1+ { [%eval -7.01] [%clk 0:09:30] } 31. Rd1 { [%eval -7.04] [%clk 0:11:07] } 31... Qc3+ { [%clk 0:09:28] } 0-1