[Event "Sparkassen-Open A"] [Site "Heusenstamm, Martinsee"] [Date "2025.11.23"] [Round "7.30"] [White "Mandalka, Justus"] [Black "Derr, Oleg"] [Result "0-1"] [ECO "A00"] [WhiteElo "2006"] [BlackElo "2140"] [PlyCount "106"] [EventDate "2025.11.20"] [WhiteTeam "SK Bad Homburg 1927"] [BlackTeam "VSG 1880 Offenbach"] 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. c4 g6 7. N1c3 a6 8. Na3 Nf6 9. Be2 Be6 10. Be3 Rc8 11. O-O Bg7 12. Qd3 O-O 13. Rad1 Nd4 14. Bxd4 exd4 15. Qxd4 Nd5 16. Qd2 Nxc3 17. bxc3 Qa5 18. Qxd6 Bxc3 19. Nb1 Bb4 20. Qd4 Qxa2 21. Bd3 Bxc4 22. Bxc4 Qxc4 23. Qb6 Qxe4 24. Rd7 Rc2 25. Rd4 Ba5 26. Qf6 Qc6 27. Rd6 Qc5 28. Rd7 Rc1 29. Rdd1 Rxd1 30. Rxd1 Qc2 31. Rf1 Re8 32. h4 h5 33. Qd6 Rd8 34. Qe5 Rd1 35. Rxd1 Qxd1+ 36. Kh2 Qxb1 37. Qxa5 Qb3 38. g3 Qb5 39. Qd8+ Kh7 40. Qf6 Qd5 41. f3 a5 42. g4 hxg4 43. fxg4 a4 44. Qf2 a3 45. h5 Qe5+ 46. Kh3 Qc3+ 47. Kh4 Kg7 48. g5 gxh5 49. Qf5 a2 50. Qg6+ Kf8 51. Qd6+ Kg8 52. g6 Qc4+ 53. Kg3 a1=Q 0-1