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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.

361065 puzzles downloaded.

  5   3 9     4  
3   4   8 7      
      6     8    
  3         5    
                 
    2         3  
    3     1      
      5 2   7   1
  1     6 9   2  
Showing puzzle number: 4380
Puzzletype: Symmetrical Sudoku
Startnumbers: 24
Difficulty: Super easy (0)
Solution methods: SiSo
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