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The 16-cell Square



When completed, the sum of all the numbers of 'each' of the horizontal rows, vertical columns and both diagonals will add up to 34 .



<<< Draw the main 16-cell SQUARE . . . . .



then, very lightly draw 2 diagonal lines across the                                         entire main SQUARE >>>





When inserting the first group of red numbers, start counting from the top left corner -- with the number 1, and on forward to the number 16 -- and put in only those numbers that can be placed into the squares that do not have part of the diagonal lines running through them .







When inserting the second group of red numbers, again start counting from the top left corner -- only now, with the number 16, and on backwards down to 1 -- only now, you will put these numbers only in the spaces that do have part of the diagonal lines running through them .








This is the finished diagram !