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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.

396149 puzzles downloaded.

1   2   9 6 4    
    4     5     2
              7  
      2       3  
  8           1  
  3       4      
  6              
9     5     7    
    1 4 6   3   8
Showing puzzle number: 47996
Puzzletype: Symmetrical Sudoku
Startnumbers: 24
Difficulty: Very easy (0)
Solution methods: SiSo SC
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