MathDB
3digit numbers at vertices of cube (1995 Chile NMO P4)

Source:

November 22, 2021
cubecombinatoricsDigits

Problem Statement

It is possible to write the numbers 111111, 112112, 121121, 122122, 211211, 212212, 221221 and 222222 at the vertices of a cube, so that the numbers written in adjacent vertices match at most in one digit?
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