[Event "Sparkassen-Open A"] [Site "Heusenstamm, Martinsee"] [Date "2025.11.20"] [Round "1.51"] [White "Gundel, Julian"] [Black "Derr, Oleg"] [Result "0-1"] [ECO "A00"] [WhiteElo "1894"] [BlackElo "2140"] [PlyCount "62"] [EventDate "2025.11.20"] [WhiteTeam "SV Königsspringer 1929 Großauhei"] [BlackTeam "VSG 1880 Offenbach"] 1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. e3 b6 5. d4 Bb7 6. Be2 O-O 7. O-O c5 8. c4 cxd4 9. Nxd4 Nc6 10. Bf3 Qc8 11. Nd2 Ne5 12. Bxb7 Qxb7 13. N2f3 d6 14. Nxe5 dxe5 15. Qf3 e4 16. Qe2 Nd7 17. b4 Rac8 18. c5 Ne5 19. Rac1 Rfd8 20. Rfd1 Nd3 21. Rc2 Rd7 22. f3 Rcd8 23. Nc6 Nf4 24. exf4 Rxd1+ 25. Kf2 exf3 26. gxf3 Bxb2 27. Rxb2 R8d7 28. Nxe7+ Kf8 29. Qe5 Rf1+ 30. Kg3 Qxf3+ 31. Kh4 Qxf4+ 0-1