Boris Spassky vs Tigran Petrosian • World Championship, 1966

50 years since Bobby Fischer won international chess crown — AP Photos

Immortal Games of Chess! Boris Spassky vs. Tigran Petrosian Moscow 1969 Immortal Games of Chess! Boris Spassky vs. Tigran Petrosian Moscow 1969 Queen's Gambit Declined. Spassky plays an excellent opening and

Tigran Petrosian vs Boris Spassky, World Chess Championship 1966

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

The Petrosian-Spassky World Championship Match (Moscow, 1969), with annotations by Tal, Korchnoi, Boleslavsky & Bondarevsky.

BORIS SPASSKY VS TIGRAN PETROSIAN WORLD CHAMPIONSHIP MATCH 1966..TORRE ATTACK:CLASSICAL DEFENCE, DAILY CHESS:A very interesting,baffling and ultimately instructive game.., By Chess Hustlers

1971 Buenos Aires, ARG - Fischer vs Petrosian – Chess Universe

Belgrade, Round 2: Fischer beats Petrosian, Spassky crushes Larsen

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Tigran Petrosian - Wikipedia