Clash of Champions: Spassky vs. Petrosian

For the first time since Alekhine, there was a world champion not named "Botvinnik" who was also not merely renting the title for a year. The Armenian named Tigran Petrosian held the title of world champion, with his unusual, "left-handed" style of quiet positional play and sharp tactics. Petrosian's

Why did Petrosian stop playing the Petroff

Botvinnik versus Smyslov and Petrosian

The World Chess Championship Updated to Include the 1972 Fischer-Spassky Match: Gligoric, Svetozar, Wade, Robert G, Sloan, Sam: 9784871875158: : Books

ChessBomb Blog: 2014-11

Fischer vs. Spassky World Chess Championship 1972

Bobby & Boris, Timman & Sir Tim: 50 years since Fischer v Spassky

Boris Spassky vs Tigran Petrosian • World Championship, 1966

Tigran V Petrosian vs Boris Spassky World Championship Match (1966)

The Petrosian-Spassky World Championship Match (Moscow, 1966), with annotations by Tal, Boleslavsky, Bondarevsky, etc.

The Petrosian-Spassky World Championship Match (Moscow, 1966), with annotations by Tal, Boleslavsky, Bondarevsky, etc.