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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.

1949785 puzzles downloaded.

    2 4 9 3     7   6  
          4     9 3    
      3     6   2 1    
2 1 7         3 4     9
  3     2     12        
  5       8 11       3  
  6       5 10       4  
        6     1     12  
9     8 4         5 11 1
    3 6   12     11      
    9 5     4          
  8   12     2 5 3 4    
Showing puzzle number: 193
Puzzletype: Symmetrical Sudoku
Startnumbers: 52
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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