[Event "USA-ch playoff"]
[Site "Chicago"]
[Date "1973.??.??"]
[Round "?"]
[White "Kavalek, Lubomir"]
[Black "Byrne, Robert Eugene"]
[Result "0-1"]

1. c4 g6 2. d4 Nf6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. h3 e5 7. d5 Na6 8. Bg5 Qe8 9. g4 Nd7 10. Rg1 Kh8 11. Qd2 Ndc5 12. O-O-O Bd7 13. h4 f5 14. gxf5 gxf5 15. Bh6 Bxh6 16. Qxh6 Qe7 17. Ng5 Rf6 18. Qh5 Raf8 19. Bh3 Be8 20. Qe2 fxe4 21. Ncxe4 Rf4 22. f3 Rxh4 23. Rg3 Bg6 24. Rdg1 Rff4 25. Qg2 Nxe4 26. fxe4 Qf8 27. Nf3 Rxe4 28. Rxg6 hxg6 29. Nxh4 Rxc4+ 30. Kb1 Rxh4 31. Be6 Qf4 32. Ka1 g5 33. Qc2 Kg7 34. a3 Nc5 35. Qd1 Rh2 36. Rf1 Rf2 37. Rxf2 Qxf2 38. Qh5 Qf1+ 39. Ka2 Nxe6 40. dxe6 Qc4+ 0-1