Nikolai Krogius

Nikolai Vladimirovich Krogius (Russian: Николай Владимирович Крогиус; 22 July 1930 – 14 July 2022) was a Russian chess Grandmaster, International Arbiter (1985), psychologist, chess coach, chess administrator, and author.

Quotes

 * Mistakes are often made when a player persists in his delusions.
 * McClain, Dylan Loeb (July 17, 2022). "Nikolai Krogius, Adviser in Chess 'Match of the Century,' Dies at 91". The New York Times. ISSN 0362-4331