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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.

161690 puzzles downloaded.

2   6   3        
          6      
  8             5
      6          
  3 5   8   4 6  
          4      
8             7  
      3          
        1   2   6
Showing puzzle number: 66
Puzzletype: Symmetrical Sudoku
Startnumbers: 19
Difficulty: Very easy (0)
Solution methods: SiSo SC
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