Career
Havasi played for Hungary in Chess Olympiads:
In 1924, at 1st unofficial Chess Olympiad in Paris (+6 –5 =0)
In 1927, at fourth board in 1st Chess Olympiad in London (+4 –1 =3)
In 1928, at fourth board in 2nd Chess Olympiad in The Hague (+6 –1 =9)
In 1930, at fourth board in 3rd Chess Olympiad in Hamburg (+10 –0 =4)
In 1931, at fourth board in 4th Chess Olympiad in Prague (+7 –4 =3)
In 1933, at fourth board in 5th Chess Olympiad in Folkestone (+5 –1 =6)
In 1935, at third board 6th Chess Olympiad in Warsaw (+5 –0 =6)
In 1936, at fourth board in 3rd unofficial Chess Olympiad in Munich (+4 –0 =12)
In 1937, at fourth board in 7th Chess Olympiad in Stockholm (+6 –4 =5). He published a book A soproni jubiláris sakkverseny, 1934 (Budapest 1935). Kornél Havasi died 1945 in Bruck/Leitha (Austria).
He had to work there as a forced labourer for the Nazis.