[Event "Zuerich op-B 15th"]
[Site "Zuerich"]
[Date "1991.??.??"]
[Round "?"]
[White "Koller, Hubert"]
[Black "Hempel, Heinrich"]
[Result "1-0"]
[ECO "A48"]
[PlyCount "51"]
[EventDate "1991.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. Nbd2 0-0 5. e4 d6 6. h3 c5 7. c3 Nbd7 8. Be2 b6 9. 0-0 Bb7 10. d5 Ne8 11. Qc2 e5 12. dxe6 fxe6 13. Bh2 d5 14. e5 Rf5 15. Bd3 Rxe5 16. Nxe5 Nxe5 17. Be2 Nd6 18. Rfe1 Qe7 19. Bxe5 Bxe5 20. Bg4 Nf7 21. Nf3 Qf6 22. Qe2 h5 23. Bxh5 gxh5 24. Nxe5 Ng5 25. Qxh5 Kg7 26. Ng4 1-0

