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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.

148979 puzzles downloaded.

  8 9         3  
7                
              9  
      2   4      
    8   3   6    
      7   8      
  5              
                5
  1         8 4  
Showing puzzle number: 86
Puzzletype: Symmetrical Sudoku
Startnumbers: 17
Difficulty: Harder (0)
Solution methods: SiSo SC SB DS DC XW
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