[Event "Candidates qf Petrosian-Huebner +1-0=6"]
[Site "Seville"]
[Date "1971.05.16"]
[Round "4"]
[White "Petrosian, Tigran V"]
[Black "Huebner, Robert"]
[Result "1/2-1/2"]

1. Nf3 Nf6 2. d4 d5 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 h6 7. Bxf6 Bxf6 8. Rc1 Be7 9. a3 c6 10. Bd3 Nd7 11. O-O b6 12. Qe2 Bb7 13. Rfd1 Qb8 14. cxd5 cxd5 15. Bb5 Nf6 16. Ba6 Bd6 17. Rc2 Ne8 18. Rdc1 Nc7 19. Bd3 Qd8 20. Ne5 Qe7 21. Nb1 Rfc8 22. Nd2 Ne8 23. Ba6 Rxc2 24. Rxc2 f6 1/2-1/2