A board divided into alternating colored squares in a regular pattern, used for games like checkers or chess, or any surface with such a pattern.
From 'chequer' (pattern of squares) and 'board' (flat surface). The gaming board design dates back to medieval times and became standardized with modern board games.
A chequerboard's 64 squares can represent over 10^120 possible chess positions—more than atoms in the observable universe—which is why computers still can't calculate them all!
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