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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.

1266809 puzzles downloaded.

    3 7 5   9 4       6
              8   11    
  4       3     1      
  12     4   11 9 2      
7   11       2       5 1
    2   6   1     9 11 7
11 10 7     8   1   5    
9 1       11       10   3
      4 3 5   7     12  
      1     3       6  
    4   1              
8       10 9   12 4 3    
Showing puzzle number: 4362
Puzzletype: Symmetrical Sudoku
Startnumbers: 54
Difficulty: Very easy (0)
Solution methods: SiSo SC
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