Three challengers take on some of the greatest minds in trivia in this exciting showdown of smarts and strategy; the last contestant standing will face off against the episode's highest scoring Master Mind in a head-to-head battle.
1986
1983
2003
2014
2013
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1989
2018
1976
1969
1993
1963
2012
2002
2016
2009
1988
1971