Who did Spassky lose to in the playoffs of the Soviet Chess Championship in 1963?
Stein
Tal
Botvinnik
Keres
Answer
Stein beat Spassky in the playoffs of the Soviet Chess Championship in 1963. This was a major upset, as Spassky was considered to be one of the best players in the world at the time. Stein went on to win the championship, and Spassky finished in second place.
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