[Event "Vienna op"]
[Site "Vienna"]
[Date "1986.??.??"]
[Round "?"]
[White "Biriescu, Ioan"]
[Black "Zueger, Beat"]
[Result "1/2-1/2"]
[WhiteElo "2320"]
[BlackElo "2435"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd3 Be7 8. Rd1 O-O 9. Be2 Bd7 10. Qg3 Nxd4 11. Rxd4 Qb6 12. Rd3 Rfd8 13. Qh4 Qxb2 14. O-O Rdc8 15. e5 dxe5 16. Ne4 Nxe4 17. Bxe7 Nc3 18. Bh5 Nd5 19. Rg3 e4 20. c3 Nxe7 21. Qxe7 Be8 22. Rd1 Qb5 23. Rg5 Qb6 24. Rxg7+ Kxg7 1/2-1/2