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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.

372749 puzzles downloaded.

    7     1      
4           5    
3 6 5            
1       6        
2 9   1   8   6 4
        7       1
            9 1 6
    1           2
      9     4    
Showing puzzle number: 28054
Puzzletype: Symmetrical Sudoku
Startnumbers: 24
Difficulty: Super easy (0)
Solution methods: SiSo
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