Coloring cubes in a large cube with restrictions
Source: Problem 3 from Regional Olympiad of Mexico Southeast 2024
September 29, 2024
combinatoricscubeColoringMexico
Problem Statement
A large cube of size is made up of 64 small unit cubes. Exactly 16 of these small cubes must be colored red, subject to the following condition:In each block of , , and cubes, there must be exactly one red cube.Determine how many different ways it is possible to choose the 16 small cubes to be colored red.Note: Two colorings are considered different even if one can be obtained from the other by rotations or symmetries of the cube.