Except that "regular" Sudoku uses the digits from 1 to 9 -- not from 0 to 9. So Binary Sudoku would use only the digit 1. Actually, that makes it even simpler.
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Except that "regular" Sudoku uses the digits from 1 to 9 -- not from 0 to 9. So Binary Sudoku would use only the digit 1. Actually, that makes it even simpler.
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