[Event "Sparkassen-Open A"] [Site "Heusenstamm, Martinsee"] [Date "2023.11.25"] [Round "4.100"] [White "Olson, Philip Christoph"] [Black "Büse, Ralf"] [Result "1/2-1/2"] [WhiteElo "1576"] [BlackElo "1898"] [PlyCount "54"] [EventDate "2023.??.??"] [WhiteTeam "SC Bad Nauheim"] [BlackTeam "SC Ladja Roßdorf"] 1. d4 e6 2. Bf4 f5 3. e3 Nf6 4. Be2 b6 5. Bf3 d5 6. Ne2 Bd6 7. c4 O-O 8. Nbc3 c6 9. h4 Ba6 10. cxd5 exd5 11. Qb3 Bc4 12. Qc2 Bxe2 13. Nxe2 Ne4 14. g3 Qe7 15. O-O Qe6 16. Bxd6 Qxd6 17. Rac1 g6 18. a3 Nf6 19. Nf4 Rc8 20. Qa4 Nbd7 21. Rc2 b5 22. Qb3 Nb6 23. Rfc1 a5 24. Nd3 a4 25. Qc3 Nc4 26. Ne5 Ne4 27. Bxe4 fxe4 1/2-1/2