[Event "Interzonal-04"]
[Site "Portoroz"]
[Date "1958.08.30"]
[Round "15"]
[White "Petrosian, Tigran V"]
[Black "Averbakh, Yuri L"]
[Result "1/2-1/2"]

1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Bb4 5. e3 O-O 6. Bd3 c5 7. O-O Nc6 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4 Qc7 11. Bb5 a6 12. Bd3 e5 13. Qc2 Re8 14. Nxe5 Nxe5 15. dxe5 Qxe5 16. f3 b5 17. Re1 Bb7 18. e4 c4 19. Bf1 Nd5 20. Bd2 Nf4 21. Be3 Ne6 22. Rad1 Nc5 1/2-1/2