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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.

118313 puzzles downloaded.

                 
    1   3 7      
      2       3  
      8       9  
2     7 9 3     5
  7       1      
  5       8      
      5 6   9    
                 
Showing puzzle number: 107
Puzzletype: Symmetrical Sudoku
Startnumbers: 19
Difficulty: Very easy (0)
Solution methods: SiSo SC
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