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The Strachey method for magic squares is an algorithm for generating magic squares of singly even order 4''n''+2. Example of magic square of order 6 constructed with the Strachey method: Strachey's method of construction of singly even magic square of order k=4 *n+2 1. Divide the grid into 4 quarters each having k^2/4 cells and name them crosswise thus 2. Using the Siamese method (De la Loubère method) complete the individual magic squares of odd order 2 *n+1 in subsquares A, B, C, D, first filling up the sub-square A with the numbers 1 to k^2/4, then the sub-square B with the numbers k^2/4 +1 to 2 *k^2/4,then the sub-square C with the numbers 2 *k^2/4 +1 to 3 *k^2/4, then the sub-square D with the numbers 3 *k^2/4 +1 to k^2. 3. Exchange the leftmost n columns in sub-square A with the corresponding columns of sub-square D. 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Strachey method for magic squares」の詳細全文を読む スポンサード リンク
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