János Flesch

János Flesch (30 September 1933 – 9 December 1983) was a chess Grandmaster, chess writer and coach, born in Budapest, Hungary. He is best known for claiming a world record simultaneous blindfold exhibition when he played 52 opponents in Budapest in 1960. However, he was apparently allowed to consult scoresheets as well as verbally recount moves of the games in progress and therefore, his claim was disallowed.

Flesch was awarded the International Master (IM) title in 1963 and the Honorary Grandmaster (GM) title in 1980. He died in an automobile accident with his wife Ildiko Tenyei in Whitstable, England, in 1983.

Represented Hungary on the Tel-Aviv Chess Olympiad (1964) (fourth place), also participated in the European Team Chess Championship in Hamburg (1965) (third place).

From 1967 he was working as chess trainer:
(1967–1970) Ferencvárosi Torna Club (FTC) Chess Club
(1971–1983) PMSC Chess Club Provided by Wikipedia