World Chess Championship 1966 - Wikipedia

Spassky's Pawn Game: Larsen vs Spassky, Belgrade 1970 – Chess Universe

Douglas Griffin on X: World Champion Tigran Petrosian in play during the 11th game of his first title match v. Boris Spassky, at the Estrada Theatre in Moscow, 4th May 1966. (Photo

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

Year of the Tigran

Games - Top 10 Games of The 1960s - Taming The Tiger - Spassky VS Petrosian, 1969

The 1969 World Chess Championship // Tigran Petrosian vs Boris Spassky (+6 -4 =13)

Tal, Petrosian, Spassky and Korchnoi: A by Soltis, Andrew

Party Animal: the lost triumph of Tigran Petrosian

Bobby Fischer, Everything Chess Wiki

The 10th World - FIDE - International Chess Federation