[Event "Candidates qf Petrosian-Portisch +3-2=8"]
[Site "Palma de Mallorca"]
[Date "1974.01.??"]
[Round "4"]
[White "Portisch, Lajos"]
[Black "Petrosian, Tigran V"]
[Result "1/2-1/2"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. cxd5 cxd5 5. Nf3 Nc6 6. Bf4 e6 7. e3 Be7 8. h3 Bd6 9. Bd3 Bxf4 10. exf4 O-O 11. O-O Bd7 12. Rc1 g6 13. Qd2 Rc8 14. Rfd1 Qe7 15. g3 Rfd8 16. a3 Be8 17. Re1 Qf8 18. Rc2 Qg7 19. Rec1 Rb8 20. Ne2 Ne4 21. Qe1 Nd6 22. Ne5 f6 23. Nf3 Rdc8 24. Nc3 Nd8 25. Qe2 Bd7 26. Nb5 Rxc2 27. Rxc2 Bxb5 28. Bxb5 Rc8 29. Rxc8 Nxc8 30. Qc2 Nd6 31. Ba4 b6 32. Qc3 Qb7 1/2-1/2