[Event "82nd US Open"]
[Site "Palo Alto, CA USA"]
[Date "1981.08.06"]
[EventDate "1981.08.02"]
[Round "5"]
[Result "1-0"]
[White "Jose M Marcal"]
[Black "Rick Shepard"]
[ECO "B83"]
[WhiteElo "2027"]
[BlackElo "1970"]
[PlyCount "68"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be2 Be7 7. O-O a6 8. f4  Qc7 9. a4 O-O 10. Kh1 Nc6 11. Nf3 Bd7 12. Qe1 Rac8 13. Bd3 Nb4 14. e5 Nxd3 15.  cxd3 dxe5 16. fxe5 Nd5 17. Ne4 f5 18. exf6 gxf6 19. Bh6 Rf7 20. Rc1 Qb8 21.  Rxc8+ Bxc8 22. Qh4 Qc7 23. Qg4+ Kh8 24. Qh5 Bf8 25. Rc1 Qd7 26. Qxf7 Bxh6 27.  Qxd7 Bxd7 28. Ra1 Bf8 29. b3 Bb4 30. Rc1 Bc6 31. Nd4 Bd7 32. Nc5 Ba3 33. Rc2  Ne3 34. Nxd7 1-0