A square board with 64 alternating light and dark squares used for playing chess.
Compound of 'chess' (from Persian 'chaturanga' through Arabic 'shatranj') and 'board' (from Old English). The game traveled from Persia to Europe through Islamic scholars in the medieval period.
The chessboard's 64-square pattern comes from an ancient Persian legend about a mathematician who asked the king for grains of rice doubled on each square—the sum would be astronomically large, showing the power of doubling!
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