Against whom did Tigran Petrosian win the World Championship in 1963?
Anatoly Karpov
Viktor Korchnoi
Mikhail Botvinnik
Bobby Fischer
Answer
Mikhail Botvinnik was defeated by Tigran Petrosian in 1963, marking the first time a Soviet player had lost the world championship. Petrosian won by a score of 12½–9½.
Mastermind of the Chessboard: Testing Your Knowledge on Tigran Petrosian