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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.

          9 1    
        6 8      
              5 9
4       7 2 9    
    1       2    
    2 6 1       4
6 9              
      1 9        
    3 2          
Showing puzzle number: 34393
Puzzletype: Symmetrical Sudoku
Startnumbers: 22
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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