[Event "Sparkassen-Open B"] [Site "Heusenstamm, Martinsee"] [Date "2025.11.21"] [Round "2.17"] [White "Karaschewski, Kevin"] [Black "Koch, Mika Jonas"] [Result "0-1"] [ECO "A00"] [WhiteElo "1654"] [BlackElo "1755"] [PlyCount "60"] [EventDate "2025.11.20"] [WhiteTeam "Mönchengladbacher SV 1"] [BlackTeam "SK Marburg 1931/72"] 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 O-O 5. e4 d6 6. h3 e5 7. d5 a5 8. Be3 Na6 9. g4 Nc5 10. Bxc5 dxc5 11. g5 Ne8 12. Qd2 Nd6 13. O-O-O f5 14. gxf6 Qxf6 15. Nh2 Qxf2 16. Qxf2 Rxf2 17. Ng4 Bxg4 18. hxg4 Rf4 19. Rd2 Raf8 20. Bd3 Rxg4 21. Rdh2 Rg3 22. Rh3 Rxh3 23. Rxh3 h5 24. Kd2 Bh6+ 25. Ke1 Bf4 26. Be2 Kg7 27. b3 h4 28. Bg4 Bg3+ 29. Ke2 Rf4 30. Bf3 g5 0-1