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

Botvinnik versus Smyslov and Petrosian

Carlsen and Kasparov in clash of the GOATs

Tilburg chess tournament - Wikipedia

Chess Universe Blog – Tagged game– Page 2

Petrosian - Spassky World Championship Match (1966) chess event

That Was The Killer Tactics”, L. Portisch Vs S. Johannessen(1966)

Changing the game: How Bobby Fischer dismantled the USSR's stronghold over the global chess scene 50 years ago today - Dot Esports

Spassky - Fischer World Championship Match (1972) chess event

Botvinnik versus Smyslov and Petrosian: Four World Chess Championship Matches - 1954, 1957, 1958 and 1963: Botvinnik, Mikhail, Soltis, Andy: 9789083347943: : Books

Former chess champion, Cold War icon Bobby Fischer, dead at 64, Local News

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

Chess faces stalemate in its match with machines

Why did Petrosian stop playing the Petroff

Former chess champion, Cold War icon Bobby Fischer, dead at 64, Local News