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Viktor Korchnoi - Wikipedia
Viktor Korchnoi obituary | Chess | The Guardian
Viktor Korchnoi | World Champion Challenger, Defector, Soviet ...
Viktor Korchnoi | Top Chess Players - Chess.com
Garry Kasparov On Viktor Korchnoi - Chess.com
Viktor Korchnoi, Chess Giant Who Drew Soviet Ire, Dies at 85
The Almost Champ: who is Viktor Korchnoi - Chess.com