Tigran's Fortress, Fischer vs Petrosian, (1971), Game 5

A Soviet survivor: the case of Tigran Petrosian

Bobby Fischer Opens Match With Incredible Blunder

Videos - Internet Chess Club

GM Igor Smirnov on Tumblr

Tigran Petrosian Amazing Immortal Chess Game! vs Bobby Fischer - Candidates Match (1971) : Gruenfeld

1971 Buenos Aires, ARG - Fischer vs Petrosian – Chess Universe

What is the record for the most chess games won in a row by a GM? - Quora

What is the record for the most chess games won in a row by a GM? - Quora

The Fischer-Petrosian Candidates' Final (Buenos Aires, 1971) with annotations by Korchnoi, Furman, Kholmov & Polugaevsky.

Historical chess championship hi-res stock photography and images - Alamy

Petrosians Legacy - Petrosian 2012 PDF, PDF, World Chess Championships