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IMO 1959–1966 - Longlisted Problems (individual years unknown) Question 1

IMO Shortlist · IMO 1959–1966 - Longlisted Problems (individual years unknown)

Question 1

(CZS) We are given $n>3$ points in the plane, no three of which lie on a line. Does there necessarily exist a circle that passes through at least three of the given points and contains none of the other given points in its interior?