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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.

158329 puzzles downloaded.

3   8 7          
            7   4
    5            
    3   6     2  
      5   8      
  8     2   4    
            5    
6   7            
          4 1   2
Showing puzzle number: 46
Puzzletype: Symmetrical Sudoku
Startnumbers: 20
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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