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Are you sure that permuting the digits never gives a grid that could be obtained by shuffling rows or columns?
by penteract 4y ago
Are you sure that permuting the digits never gives a grid that could be obtained by shuffling rows or columns?
- tobr 4y agoNo, that could definitely happen. Not sure how to estimate how many duplicates there would be. It would have to depend on the specific puzzle you started with.