Splitting 8x8 chessboard into groups of 4 squares
Source: CentroAmerican 2003
November 29, 2010
combinatorics proposedcombinatorics
Problem Statement
A square board with sides is divided into squares square with each side . Each box can be painted white or black. Find the total number of ways to colour the board so that each square of side formed by four squares with a common vertex contains two white and two black squares.