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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.

111971 puzzles downloaded.

  5         6   8
    3 6       1  
                 
        7        
7 6           3 9
        4        
                 
  4       8 2    
5   8         9  
Showing puzzle number: 111
Puzzletype: Symmetrical Sudoku
Startnumbers: 18
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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