[Event "Olympiad-23"]
[Site "Buenos Aires"]
[Date "1978.11.08"]
[Round "13"]
[White "Stoppel, Franz"]
[Black "Wirthensohn, Heinz"]
[Result "0-1"]
[BlackElo "2410"]

1. c4 e6 2. Nf3 Nf6 3. d4 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 d5 8. Ne5 Na6 9. Bg5 Ne4 10. Bxe7 Qxe7 11. cxd5 exd5 12. Qa4 Nxc3 13. bxc3 c5 14. e3 Rfd8 15. Nd3 Nc7 16. dxc5 bxc5 17. Rfd1 Ne6 18. Rab1 Qc7 19. c4 Bc6 20. Qa6 Rac8 21. Nf4 Nxf4 22. gxf4 Rd6 23. Qa3 d4 24. exd4 cxd4 25. Rd3 Bxg2 26. Kxg2 Rg6+ 27. Rg3 Qxc4 28. Qxa7 d3 29. Qe3 Rd8 30. Rd1 Re6 31. Qf3 Rg6 32. Qe3 Qd5+ 33. Qf3 Qf5 34. Rd2 h5 35. Qe3 h4 36. Rg5 Rxg5+ 37. fxg5 Qg4+ 38. Kf1 Qc4 39. h3 Qd5 40. f3 Qd6 41. Qe4 Rc8 42. Qxh4 Rc1+ 43. Kg2 Qc5 44. Rf2 d2 45. Rxd2 0-1