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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.

1087896 puzzles downloaded.

3                   6 7
11   12 10 2     9   1 5  
      4 10 3 6          
    7       9 12        
    9 11 7 4         12  
  3   6           8 9  
  8 5           4   7  
  11         1 4 12 9    
        12 2       5    
          9 2 10 1      
  7 10   5     1 3 11   8
5 2                   9
Showing puzzle number: 133
Puzzletype: Symmetrical Sudoku
Startnumbers: 52
Difficulty: Very easy (0)
Solution methods: SiSo SC
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