[Event "Interzonal-12b"]
[Site "Toluca"]
[Date "1982.08.28"]
[Round "13"]
[White "Polugaevsky, Lev"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2630"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 Ne4 6. Nxe4 Bxe4 7. Nd2 Bb7 8. e4 g6 9. Bd3 Bg7 10. Nf3 d6 11. Bg5 Qd7 12. Qd2 h6 13. Be3 Nc6 14. Bc2 Ne7 15. O-O-O O-O-O 16. d5 c5 17. dxc6 Nxc6 18. Nd4 Nxd4 19. Bxd4 Bxd4 20. Qxd4 Qc7 21. Rd2 Qc5 22. Rhd1 Qxd4 23. Rxd4 Kc7 24. f3 Bc6 1/2-1/2