[Event "Interzonal-09a"]
[Site "Leningrad"]
[Date "1973.06.14"]
[Round "9"]
[White "Kortschnoj, Viktor Lvovich"]
[Black "Byrne, Robert Eugene"]
[Result "1-0"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Bd2 c5 10. dxc6 bxc6 11. Bg5 Be6 12. c5 Ne8 13. cxd6 Nxd6 14. Qa4 f6 15. Be3 Qc7 16. Rac1 Rfb8 17. Rfd1 Bf8 18. Rd2 Nec8 19. Nd5 Qf7 20. Qxc6 Nxe4 21. Nxf6+ Nxf6 22. Ng5 Bd7 23. Qa6 Qe7 24. Bc5 Qg7 25. Qc4+ Kh8 26. Nf7+ Kg8 27. Nxe5+ Kh8 28. Bxf8 Qxf8 29. Nxd7 1-0