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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.

2333808 puzzles downloaded.

      2             1  
        7   6 12   10    
7         2 5 3   6 12 11
    6   10       3   4  
4 10 2     7   9     6  
        3       2 1    
    11 9       4        
  4     11   7     12 8 10
  8   7       6   2    
3 12 10   4 9 11         2
    4   6 8   2        
  2             7      
Showing puzzle number: 1613
Puzzletype: Symmetrical Sudoku
Startnumbers: 52
Difficulty: Very easy (0)
Solution methods: SiSo SC
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