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Petrosian's Invitation
Tigran Petrosian vs Boris Spassky, World Championship, Moscow 1966 · King's Indian Defence, Fianchetto Variation · 1-0
Coach
Mikhail Tal annotated this game soon after it was played. His central thread is not a computer evaluation but a human strategic question: once Black's knight goes to a5, will it justify itself on c4 or find a route back before the kingside battle begins?
Before move one
Step through the game; it stops where a move is worth finding.
Boris Spassky
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Tigran Petrosian
Arrow keys step through the game. Explore tries your own moves; Stockfish answers.
- Watch whether Black's a5-knight creates pressure on c4 or finds the b7-d8 route home.
- Compare Black's queenside plan with the later commitment to a kingside pawn storm.
- Notice how Petrosian invites complications only after judging which black pieces can participate.
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