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Sudoku puzzles disjoint groups (Su Doku)

My database includes 67954 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9. The cells with the same color must also contain the digits 1 through 9. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

326553 puzzles downloaded.

    3   6       2
  2   5     9    
          2      
4   7            
  5   3   9   6  
            7   8
      9          
    4     7   9  
6       2   8    
Showing puzzle number: 50884
Puzzletype: Symmetrical Sudoku
Startnumbers: 22
Difficulty: Very easy (0)
Solution methods: SiSo SC
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