Career
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 of the games and therefore his claim was disallowed. Flesch was awarded the International Master (IM) title in 1963 and the Honorary Grandmaster (General Motors) title in 1980.
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 (Federal Trade Commission) Chess Club (1971–1983) PMSC Chess Club János Flesch was an attacking player, taking risk in his games, developing an imaginative style of play. He often sacrificed material in search for the initiative in chess.
Janos Flesch vs Hrumo, BFX Budapest 1960, King"s Gambit: Accepted.Rosentreter-Testa Gambit,(C37), 1-0 A creative short attacking game, representing the playing style of J.Flesch. Janos Flesch vs Viktor Korchnoi, Belgrade 1964, Sicilian Defense: Old Sicilian.
General,(B30), 1-0 Janos Flesch vs Svetozar Gligoric, Belgrade 1964, King"s Indian Attack(A07), ½–½ Boris Spassky vs Janos Flesch, Tel-Aviv 1964, Queen"s Gambit Declined: Lasker Defense.
Main Lincolnshire.(D57), ½–½.
