Botvinnik played his last world championship match against Tigran Petrosian, in a 22-game series
Text from Wikipedia, available under CC BY-SA 4.0.
- #wikipedia
- #event
Botvinnik played his last world championship match against Tigran Petrosian, in a 22-game series
Text from Wikipedia, available under CC BY-SA 4.0.
Captured 2026-08-21 from Wikipedia. The archived copy is preserved so this citation survives link rot.