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Array Arrangement (Posted on 2013-12-19) Difficulty: 3 of 5
Arrange the digits from 1 to 9 in a 3 x 3 array in such a way that the sum of a number's immediate neighbors (including diagonals) is a multiple of that number. (Disregard rotations and reflections.)

See The Solution Submitted by K Sengupta    
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  Subject Author Date
Solutioncomputer solutionCharlie2013-12-19 19:07:41
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