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

1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. Bd2 O-O 5. Nf3 c5 6. dxc5 Bxc5 7. e3 d5 8. Rc1 Qe7 9. cxd5 exd5 10. Be2 Nc6 11. O-O Bg4 12. Na4 Bd6 13. Bc3 Rad8 14. Bd4 Ne4 15. a3 Bb8 16. g3 Rfe8 17. Re1 Qe6 18. Nc5 Qf5 19. Rf1 Nxc5 20. Bxc5 Qf6 21. Nd4 Bxe2 22. Nxe2 1/2-1/2