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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.

130192 puzzles downloaded.

        9       2
    6 3   5      
              1  
  8 1       9    
        6        
    2       5 3  
  1              
      7   2 1    
4       5        
Showing puzzle number: 104
Puzzletype: Symmetrical Sudoku
Startnumbers: 19
Difficulty: Very easy (0)
Solution methods: SiSo SC
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