[Event "Interzonal-13c"]
[Site "Biel"]
[Date "1985.07.23"]
[Round "15"]
[White "Jansa, Vlastimil"]
[Black "Polugaevsky, Lev"]
[Result "1/2-1/2"]
[WhiteElo "2480"]
[BlackElo "2600"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. O-O Be7 8. f4 O-O 9. Kh1 Qc7 10. a4 Nc6 11. Be3 Re8 12. Bd3 Nb4 13. Qf3 b6 14. Rae1 Bb7 15. Qh3 Bf8 16. Nf3 Nd7 17. f5 exf5 18. Ng5 h6 19. Qxf5 Nf6 20. Nf3 Nd7 21. Ng5 Nf6 22. Nf3 Nd7 23. Ng5 1/2-1/2