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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.

1531665 puzzles downloaded.

    8       1   9   3  
            2 7 11 8   10
2 7         10 9        
  6             1      
9     3   5   4        
10           8 2   6 9  
  3 2   5 10           11
        1   4   2     6
      6             4  
        2 9         12 5
4   12 1 8 3            
  10   2   12       7    
Showing puzzle number: 4392
Puzzletype: Symmetrical Sudoku
Startnumbers: 48
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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