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Sudoku puzzles disjoint groups (Su Doku)

My database includes 67954 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9. 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.

400291 puzzles downloaded.

  7     2   5    
  5 9            
6   1   5        
1 9              
      2   3      
              4 6
        1   6   8
            4 9  
    4   6     7  
Showing puzzle number: 51243
Puzzletype: Symmetrical Sudoku
Startnumbers: 22
Difficulty: Super easy (0)
Solution methods: SiSo
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