[Event "Candidates reserve"]
[Site "Portoroz"]
[Date "1971.??.??"]
[Round "1"]
[White "Portisch, Lajos"]
[Black "Smyslov, Vassily V"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 Ne4 7. Bd2 d6 8. d5 Nxd2 9. Qxd2 e5 10. h4 Nd7 11. e4 a5 12. Bh3 Nc5 13. Qc2 O-O 14. Na4 c6 15. Nxc5 bxc5 16. Nd2 Qb6 17. O-O g6 18. Rfd1 Rfb8 19. Rab1 Bf8 20. Bd7 cxd5 21. cxd5 1/2-1/2