[Event "Interzonal-09b"]
[Site "Petropolis"]
[Date "1973.08.12"]
[Round "14"]
[White "Portisch, Lajos"]
[Black "Reshevsky, Samuel Herman"]
[Result "1-0"]

1. c4 c5 2. Nf3 g6 3. e4 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. Nc3 Nxd4 7. Qxd4 d6 8. Bg5 Bg7 9. Qd2 O-O 10. Bd3 a5 11. O-O a4 12. Rac1 Be6 13. Qc2 Nd7 14. f4 Rc8 15. b3 axb3 16. axb3 Nf6 17. Kh1 Qa5 18. f5 Bd7 19. Nd5 Qd8 20. Qf2 Bc6 21. Qh4 Bxd5 22. exd5 Re8 23. Rf3 Nd7 24. Rcf1 Bf6 25. Rh3 Nf8 26. fxg6 fxg6 27. Bxg6 hxg6 28. Rxf6 1-0