Boris Spassky vs Tigran Petrosian • World Championship Match, 1966

Boris Spassky vs Tigran Petrosian • World Championship Match, 1966

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Boris Spassky vs Tigran Petrosian • World Championship Match, 1966

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Petrosian vs Spassky World Championship Match 1966

Tigran Petrosian vs Boris Spassky World Championship Match (1966) #chess

World champion Tigran Petrosian right and Argentine grand master Miguel Najdorf left at the Moscow International Chess Stock Photo - Alamy