[Event "AUS-ch 1977-78"]
[Site "Perth AUS"]
[Date "1977.12.30"]
[EventDate "1977.12.27"]
[Round "4"]
[Result "1-0"]
[White "John Spencer Purdy"]
[Black "Paul Dozsa"]
[ECO "A30"]
[WhiteElo "2165"]
[BlackElo "2120"]
[PlyCount "74"]

1. c4 c5 2. g3 Nf6 3. Bg2 Nc6 4. Nc3 g6 5. e3 Bg7 6. Nge2 O-O 7. O-O d6 8. a3 e5 9. Rb1 Be6 10. Nd5 Bxd5 11. cxd5 Ne7 12. e4 Nd7 13. d3 b5 14. Be3 a5 15. f4 f5 16. Qd2 b4 17. fxe5 dxe5 18. d6 Nc8 19. exf5 Ra6 20. fxg6 hxg6 21. Rxf8+ Qxf8 22. Rf1 Qxd6 23. Bb7 Ne7 24. Bxa6 Qxa6 25. Qc2 Nf5 26. Bf2 Bh6 27. Qc4+ Qxc4 28. dxc4 Ne3 29. Bxe3 Bxe3+ 30. Kg2 a4 31. Kf3 Bh6 32. Rd1 Nb6 33. axb4 cxb4 34. c5 Nc4 35. c6 Bf8 36. c7 Nb6 37. Rd8 1-0