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9x9 magic squares:

destenavesy
in Brain Teasers and Puzzles

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9x9 magic squares:
Is it possible to create a 9x9 magic square that is Pan Magic and Associative.
1. Pan Magic (every row, column, diagonal, and broken diagonal, sum up to the same value)
2. Associative (each pair of numbers symmetrically opposite to the center number sum up to the same value)

  • 2 months later...

It seems to give 76 equations with 83 unknowns. Should be possible.

PS. I assume they ask about a non-trivial solution, i.e., all zeroes.

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