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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.

1481921 puzzles downloaded.

        10   6     2 8  
  5       8     6   12 9
    2   7 12     10      
        5   3 4   11 9  
  1   11   10            
9   5   2       8   3 4
5 2   12       8   10   11
            2   12   4  
  7 8   12 9   1        
      5     10 6   9    
7 3   9     8       5  
  4 6     11   3        
Showing puzzle number: 3453
Puzzletype: Symmetrical Sudoku
Startnumbers: 54
Difficulty: Very easy (0)
Solution methods: SiSo SC
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