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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.

2181127 puzzles downloaded.

    11       7   2 3    
    3     2   1        
8 2       4   9 1 11   10
12     3     1   8 9   5
5   8       9 4   2 10  
            8 7       1
6       4 9            
  12 2   1 5       4   11
3   9 4   11     12     6
2   4 6 9   12       5 8
        8   2     12    
    12 9   10       1    
Showing puzzle number: 5747
Puzzletype: Symmetrical Sudoku
Startnumbers: 58
Difficulty: Very easy (0)
Solution methods: SiSo SC
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