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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.

109415 puzzles downloaded.

        7 2      
                1
  2     9     4  
        6        
  7   4   3   1  
        8        
  4     3     8  
5                
      8 1        
Showing puzzle number: 131
Puzzletype: Symmetrical Sudoku
Startnumbers: 18
Difficulty: Very easy (0)
Solution methods: SiSo SC
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