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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.

291548 puzzles downloaded.

  3 2           6
  5             4
  7   1          
    3 5          
  4     3     6  
          1 9    
          4   7  
5             1  
6           3 5  
Showing puzzle number: 49280
Puzzletype: Symmetrical Sudoku
Startnumbers: 21
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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