[Event "Olympiad-26"]
[Site "Thessaloniki"]
[Date "1984.11.19"]
[Round "1"]
[White "Ruefenacht, Matthias"]
[Black "Jose Mateus, Manuel"]
[Result "1-0"]
[WhiteElo "2275"]

1. e4 c5 2. Nc3 Nc6 3. Nf3 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Bc4 e6 7. Be3 Be7 8. Qe2 O-O 9. O-O-O a6 10. Bb3 Qc7 11. Rhg1 b5 12. g4 b4 13. g5 bxc3 14. gxf6 cxb2+ 15. Kb1 Bxf6 16. Nxc6 Qxc6 17. Bh6 Kh8 18. e5 dxe5 19. Bxg7+ Bxg7 20. Rxg7 Kxg7 21. Qg4+ Kf6 22. Qh4+ Kf5 23. Qxh7+ Kf4 24. Qh4+ Kf5 25. Rg1 1-0