Magic Square Puzzle

Appeared in Volume 8/2, May 1995

Here is a fun/challenging puzzle:

Complete the 5 x 5 square below with the remaining numbers 1 through 25. The sum of each row, column, and both diagonals have to equal 65. You can only use a number once. The middle row is already done.

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[11][7 ][ 1][25][21]
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Mary Kelley
maryk@qualcomm.com