MathDB

2

Part of 1990 Spain Mathematical Olympiad

Problems(1)

every point of the plane is painted with one of three colors ....

Source: Spanish Mathematical Olympiad 1990 P2

8/2/2018
Every point of the plane is painted with one of three colors. Can we always find two points a distance 11 cm apart which are of the same color?
combinatoricscombinatorial geometryColoring