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Random sudoku puzzle

4 5     3        
    2       6   9
  8       5   4  
        2 8   1 3
      7       9  
  9 3           7
        6 9      
  1         7 8  
      8          
Showing puzzle number: 5616167
Puzzletype: Optimal Sudoku
Startnumbers: 24
Difficulty: Super hard (13)
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