[Event "US Open-73"]
[Site "Atlantic City"]
[Date "1972.??.??"]
[Round "2"]
[White "Martell, Jose"]
[Black "Vassar, R."]
[Result "0-1"]
[ECO "B20"]
[PlyCount "60"]
[EventDate "1972.08.13"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. b4 cxb4 3. a3 bxa3 4. d4 d6 5. f4 g6 6. Nf3 Bg4 7. c3 Bh6 8. Nxa3 Nf6 9. Bd3 0-0 10. 0-0 Nbd7 11. Qe1 e5 12. Nc4 Bxf3 13. Rxf3 exd4 14. cxd4 d5 15. exd5 Nxd5 16. f5 Bg7 17. Bb2 Qe7 18. Qf2 b5 19. Nd2 N7f6 20. h3 b4 21. g4 g5 22. Nc4 Nf4 23. Ne5 N6d5 24. Re1 Qd6 25. h4 h6 26. Bb1 a5 27. Rc1 Rac8 28. Nc4 Qa6 29. Qc2 Rfe8 30. Kf2 Re2+ 0-1

