TOT 518 1996 Autumn S A1 colour 4+4 verices of a cube in 2 colors
Source:
August 16, 2024
geometry3D geometrycombinatoricscombinatorial geometryColoring
Problem Statement
Can one paint four vertices of a cube red and the other four points black so that any plane passing through three points of the same colour contains a vertex of the other colour?(Mebius, Sharygin)