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Sudoku puzzles (Su Doku)

My database includes 10934 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row, every column, and every 3x4 box contains the digits 1 through 12. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

621232 puzzles downloaded.

      6 11 3 7 12        
4 1         6     7    
  11       8   1 3 6 2  
  8 2 12         1      
    7 9 3   5 8        
  10   3   7     4 9    
    1 2     9   11   5  
        2 6   5 8 1    
      8         6 4 12  
  2 9 11 10   12       1  
    4     9         10 12
        4 2 8 7 9      
Showing puzzle number: 9808
Puzzletype: Symmetrical Sudoku
Startnumbers: 58
Difficulty: Super easy (0)
Solution methods: SiSo
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