[Event "US Open-72"]
[Site "Ventura"]
[Date "1971.??.??"]
[Round "1"]
[White "Gehring, Marc"]
[Black "Ree, Hans"]
[Result "0-1"]
[ECO "D77"]
[PlyCount "62"]
[EventDate "1971.08.08"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d5 6. 0-0 dxc4 7. Nc3 Nc6 8. d5 Nb4 9. Ne5 Bf5 10. Nxc4 c6 11. dxc6 Nxc6 12. Qa4 Qc8 13. Rd1 Bd7 14. Qc2 Be6 15. Ne3 Rd8 16. Bd2 Nd4 17. Qb1 Rb8 18. Nf1 Bf5 19. e4 Bg4 20. Rc1 Nf3+ 21. Kh1 Nxd2 22. Nxd2 Rxd2 23. e5 Qf5 24. Qxf5 Bxf5 25. exf6 Bxf6 26. Nd5 Bxb2 27. Rd1 Rxf2 28. Nxe7+ Kf8 29. Nxf5 Bxa1 30. Nd4 Bxd4 31. Rxd4 Rxa2 0-1

