[Event "Olympiad-23"]
[Site "Buenos Aires"]
[Date "1978.10.25"]
[Round "1"]
[White "Schumacher, Helmut"]
[Black "Hug, Werner"]
[Result "1/2-1/2"]
[BlackElo "2460"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. e3 O-O 5. d4 d6 6. Nbd2 Nbd7 7. Be2 e5 8. c4 Re8 9. O-O e4 10. Ne1 Nf8 11. Nc2 c6 12. d5 c5 13. f3 exf3 14. Bxf3 N8d7 15. Qe2 Ne5 16. Rae1 Qe7 17. h3 a6 18. e4 h5 19. Kh1 Nh7 20. Ne3 Qh4 21. Nd1 Ng5 22. Bc1 Re7 23. Qf2 Ngxf3 24. Nxf3 Nxf3 25. Qxf3 Be5 26. Bf4 Bxf4 27. Qxf4 Qxf4 28. Rxf4 Kg7 29. Ref1 f5 30. exf5 Bxf5 31. Nc3 Re3 32. R4f3 Rae8 33. Kh2 Rxf3 34. Rxf3 Re1 35. Kg3 Rc1 36. Re3 Kf6 37. Ne4+ Ke5 38. Ng5+ Kf6 39. Ne4+ 1/2-1/2