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Not A Magic Square (Posted on 2004-06-19) Difficulty: 3 of 5
Place nine different digits (from 0-9) into a 3x3 grid, such that the eight sums formed by the three rows, three columns and two diagonals are consecutive numbers.

See The Solution Submitted by Brian Smith    
Rating: 4.3333 (3 votes)

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Observation re: Two solutions | Comment 6 of 14 |
(In reply to Two solutions by Charlie)

While the trivial variations based on rotations and reflections were noted previously, if the two solutions noted as different are written in the following form:

194   805       
873   126
605   394

we can see that one is obtained from the other by replacing each digit n by the digit 9-n, and in a different way is a 'trivial' variation.


  Posted by Charlie on 2004-06-21 00:09:56
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