1

Part of 1966 IMO Shortlist

Problems(1)

Socialists Republic Of Czechoslovakia 1

Source: IMO LongList 1959-1966 Problem 1

n>3

points in the plane such that no three of the points are collinear. Does there exist a circle passing through (at least)

3

of the given points and not containing any other of the

n

points in its interior ?

combinatorial geometrygeometrycircleIMO Longlist