[Event "Untergrombach op"]
[Site "Untergrombach"]
[Date "1989.??.??"]
[EventDate "?"]
[Round "?"]
[Result "1/2-1/2"]
[White "Oliver Prestel"]
[Black "Matthias Michael Mueller"]
[ECO "A16"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "68"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 d6 6. O-O Nc6 7. Rb1 a5 8. d3  e5 9. a3 Bd7 10. b4 axb4 11. axb4 Qc8 12. b5 Ne7 13. Bd2 Bh3 14. Qc1 Re8 15. e4  Bxg2 16. Kxg2 Nd7 17. Nd5 Nc5 18. Qc2 Qd7 19. b6 Nxd5 20. cxd5 c6 21. dxc6 Qxc6  22. Be3 Ra5 23. Rfc1 Rea8 24. Qc4 h6 25. h4 Bf8 26. d4 exd4 27. Qxd4 Rb5 28.  Qd5 Qxb6 29. Ra1 Rxa1 30. Rxa1 Qc6 31. Nd4 Qxd5 32. exd5 Nb3 33. Nxb5 Nxa1 34.  Bf4 1/2-1/2