Magic Square

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A square divided into equal squares, like a chessboard, in each of which is placed one of a series of consecutive numbers from 1 up to the square of the number of cells in a side, in such a manner that the sum of the numbers in each row or column and in each diagonal is constant.


add, sums


Encyclopaedia Britannica (New York: The Encyclopaedia Britannica Company, 1910) 17:310


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