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.

World Champion Calculation Training - Part 3: Petrosian & Spassky

Petrosian - Spassky World Championship Match 1969 - Chessentials

Endgames of the World Champions Vol. 2 - from Steinitz to Spassky

Tactics Helping Strategy - Learn from Spassky and Petrosian (4h and 30 min Running Time)

World Chess Championship - Wikipedia

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

CBM #214 Special: Boris Spassky

Play Like Tigran Petrosian - Chess Lessons

Learn from the World Champions - Chess Lecture - 2 DVDs - Volume 59 Chess DVD : FM Dennis Monokroussos: Sports & Outdoors

The Match of the Century: Fischer-Spassky, 1972 Fisher - Spassky, 1972 Chess match of the 20th century

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Mark Taimanov, World-Class Chess and Piano Player, Dies at 90 - The New York Times