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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.

360257 puzzles downloaded.

      3 4       7
3 2   7 9 8      
                2
    8            
  1   5   7   3  
            1    
4                
      1 7 9   4 3
7       3 6      
Showing puzzle number: 50201
Puzzletype: Symmetrical Sudoku
Startnumbers: 24
Difficulty: Very easy (0)
Solution methods: SiSo SC
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