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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.

    10           7      
  6 9   8     11     12  
7 3           5 9 11    
    2           6     11
      8   12 7   2 5   4
  5           2 8   7 12
5 2   7 11           6  
8   3 6   2 12   4      
11     9           10    
    12 10 9           8 1
  1     6     3   12 4  
      4           3    
Showing puzzle number: 4328
Puzzletype: Symmetrical Sudoku
Startnumbers: 52
Difficulty: Very easy (0)
Solution methods: SiSo SC
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