FIDE - International Chess Federation - The tenth World Chess Champion Boris Spassky turns 84 today. ♟️ Spassky defeated Tigran Petrosian in 1969 to become world champion and lost the title to

FIDE - International Chess Federation - The 10th World Chess

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Tigran Petrosian Top 22 Amazing Chess Sacrifices! - 9th World

TIGRAN PETROSIAN (left) defended his World title, against Boris

Petrosian - Spassky World Championship Match 1969

Chess.com - On this day in 1969 📅, Boris Spassky won his match

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Petrosian - Spassky World Championship Match (1966) chess event

FIDE - International Chess Federation - The tenth World Chess

World Chess Championship 1966 - Wikipedia

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Oct. 04, 1971 - Buenos Aires, , Argentina - Former world chess

The Fischer-Petrosian Candidates' Final (Buenos Aires, 1971) with

The Petrosian-Spassky World Championship Match (Moscow, 1969