Viktor Lvovich Korchnoi (also Korchnoy, Kortchnoy, Kortschnoi, etc.; pronounced in the original Russian as "karch NOY"; Ви́ктор Льво́вич Корчно́й, born March 23, 1931, in Leningrad, USSR), but later defected to Switzerland is a professional chess player and currently the oldest active grandmaster on the world tournament circuit. Korchnoi is also a chess author.
Korchnoi...
Date of birth:
- 1931
