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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.

161745 puzzles downloaded.

              7  
        5 6 1    
      3 4        
2     1 8   6 4  
6   7       2   8
  8 3   6 7     5
        1 8      
    9 4 7        
  5              
Showing puzzle number: 99
Puzzletype: Symmetrical Sudoku
Startnumbers: 26
Difficulty: Super easy (0)
Solution methods: SiSo
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