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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.

402754 puzzles downloaded.

  5   2          
    6       7    
4         8 3    
            8   6
  2           4  
5   7            
    3 5         1
    2       5    
          9   3  
Showing puzzle number: 22914
Puzzletype: Symmetrical Sudoku
Startnumbers: 20
Difficulty: Very easy (0)
Solution methods: SiSo SC
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