Viktor Korchnoi was born in Leningrad, Soviet Union and was a Russian chess grandmaster who defected to the Netherlands in 1976. He lived later in Switzerland.
Karpov - Korchnoi 1978 in Baguio City / Philippines
Results: 6–5 ( 21 draws ) Winner was first player to win six games, draws not counting.
Grandmaster Varuzhan Akobian covers Game 31 of Viktor Korchnoi vs. Anatoly Karpov from the 1978 World Championship match.
Nimzo-Indian Defense: Normal Variation. Bishop Attack (E47) 0-1