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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.

2251043 puzzles downloaded.

      12     3       1 9
    10 9               6
    1   11 8 9   4      
4   8             3    
        6     1 2 12    
6 11 2         3       7
1       4         7 12 10
    7 10 5     9        
    11             1   8
      4   12 10 5   9    
7               8 6    
3 2       11     7      
Showing puzzle number: 5548
Puzzletype: Symmetrical Sudoku
Startnumbers: 48
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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