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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.

158137 puzzles downloaded.

  4           5  
  3     8        
            7    
5 7             4
3     7   4     8
1             7 3
    7            
        7     2  
  1           9  
Showing puzzle number: 94
Puzzletype: Symmetrical Sudoku
Startnumbers: 20
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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