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Sudoku puzzles irregular and disjoint groups (Su Doku)

My database includes 131 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row, every column, and every box contains the digits 1 through 6. 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.

160614 puzzles downloaded.

      5       9  
            7    
  8     3   5    
            1    
      1   2      
    4            
    5   1     6  
    3            
  9       3      
Showing puzzle number: 29
Puzzletype: Symmetrical Sudoku
Startnumbers: 16
Difficulty: Very easy (0)
Solution methods: SiSo SC
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