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

Petrosian - Spassky World Championship Match (1969) chess event

Why did Petrosian stop playing the Petroff

Chess: Carlsen plans fast start in Dubai while Firouzja captures his records, Magnus Carlsen

Botvinnik - Petrosian: 1963 World Chess Championship Match - Kindle edition by Botvinnik, Mikhail . Humor & Entertainment Kindle eBooks @ .

Mark Taimanov at 85

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

Tilburg chess tournament - Wikipedia

When Boris Spassky was captured by the Fischer king - The New European

Petrosian vs. Spassky World Championship 1966 - GM Ben Finegold

Chess: Teenager Alireza Firouzja aiming to be youngest ever world champion, Chess