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

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

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