A narrowly missed record: Viktor Kortschnoi against the World Champions
During his long career Viktor Kortschnoi (23 March 1931 - 6 June 2016) won against Botvinnik, Smyslov, Tal, Petrosian, Spassky, Fischer, Karpov, Kasparov and Carlsen. He never became World Champion himself, but you might think that "he could beat anyone". But this is just a cliché. For although...
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