Play Like A World Champion: Petrosian and Spassky - Chess Lessons

In 1963 Tigran Petrosian unseated Botvinnik as World Champion for the final time. Petrosian was a defensive genius and held his title again in 1966 against Boris Spassky. In 1969 Spassky won another candidates cycle and defeated Petrosian to take the title.

Tigran Petrosian's games v. Gurgenidze & Bannik (Spartak Team-ch, Moscow 1961).

Botvinnik versus Smyslov and Petrosian

Tigran Petrosian World Chess Hall of Fame

50 years ago, the USSR was battling the Rest of the World

Bonus Pod - Recapping the book Bobby Fischer Goes to War with guest co-host Chris Wainscott [Chess Books Recaptured Series] — The Perpetual Chess Podcast

Magnus Carlsen - Wikipedia

Tigran Petrosian (June 17, 1929 – August 13, 1984) - Chess Giants - CHESS POWER

50 years ago: Fischer-Spassky, Secret weapons?

Chess Duels: My Games with the World Champions by Yasser Seirawan – Everyman Chess

Tigran Petrosian player profile

Boris Spassky vs Tigran Petrosian (1969)