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  Permute the numbers in the puzzle.
  
    1 -> 2 -> 3 -> 4 -> 5 -> 6 -> 7 -> 8 -> 9 -> 1

  Rotate the puzzle.
  
  Reflect the puzzle.
  
  Exchange two rows    within a block row.

  Exchange two columns within a block column.

  Exchange two block rows.
  
  Exchange two block columns.
  

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