Viktor Korchnoi plays chess against Karpov. News Photo - Getty Images

Winning Moves of Anatoly Karpov

Karpov-Korchnoi 1978 Depicted In 'The World Champion'

Chess grandmaster Viktor Korchnoi dies at 85 - ESPN

Korchnoi and his Chess Grandchildren - Vladimir Barsky (K-6184) - Caissa Chess Store

Bobby Fischer quote: Karpov, Kasparov, Korchnoi have absolutely destroyed chess by their immoral

Books about Korchnoi and Karpov by Edward Winter

Korchnoi x Karpov – Merano 1981 – MI Mauro de Souza

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Best chess players never to become World Champion - part one - Viktor Korchnoi - Chessentials

Mind control, levitation and no pain: the race to find a superman in sport, Books