[Event "Reggio Emilia-20 1977/78"]
[Site "Reggio Emilia"]
[Date "1977.12.??"]
[Round "?"]
[White "Wirthensohn, Heinz"]
[Black "Haik, Aldo"]
[Result "1-0"]
[WhiteElo "2390"]
[BlackElo "2400"]

1. c4 g6 2. Nc3 Bg7 3. g3 e5 4. Bg2 Ne7 5. d3 O-O 6. e4 d6 7. Nge2 Nbc6 8. O-O Be6 9. Nd5 f5 10. Be3 Qd7 11. Qd2 Rf7 12. Rae1 Raf8 13. f3 Nd4 14. Nxd4 exd4 15. Bg5 Nc6 16. exf5 Bxf5 17. g4 h6 18. gxf5 hxg5 19. fxg6 Rf4 20. Nxf4 gxf4 21. Qf2 Ne5 22. Qh4 Nxg6 23. Bh3 Qf7 24. Qh5 Be5 25. Kh1 Kg7 26. Rg1 Rh8 27. Qf5 Rh6 28. Rg5 Bf6 29. Rg2 Bh4 30. Re6 Bf6 31. Rg1 Rh8 32. Bg4 Rh6 33. Bh5 Rxh5 34. Qxh5 Qxe6 35. Rxg6+ Kf8 36. Qh6+ Kf7 37. Qh7+ Kf8 38. Rg1 c6 39. Qh6+ Ke7 40. Qxf4 Be5 41. Qh4+ Ke8 42. Qh5+ Kd8 43. Qh7 Qf6 1-0