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 of the games 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
Q718
chess
Concept
Q105269
Grandmaster
Concept
Q1781
Budapest
LOC
Q28
Hungary
LOC
Q929009
simultaneous
Concept
Q884370
blindfold
Concept
Q1781
Budapest
LOC
Q571113
scoresheets
UNK
Q1690563
International Master
Concept
Q964785
Whitstable
LOC
Q21
England
LOC
Q33935
Tel-Aviv
LOC
Q428303
Chess Olympiad
EVE
Q1259733
European Team Chess Championship
EVE
Q1055
Hamburg
LOC
Q208396
Ferencvárosi Torna Club
ORG
Q937275
János Flesch
PER
1933-09-30T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
30 September 1933
DATE
1983-12-09T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
9 December 1983
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1960
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1963-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1963
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1983
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1967-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1967
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1983
NUMBER
sport
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