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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.

1604419 puzzles downloaded.

    12   10     11   2 9  
        4 3   8 1      
  1 6         5 10     4
11   5   1       4 8 6  
                  1    
  3   4   11   12     10 2
2 12     6   3   8   4  
    4                  
  7 11 3       4   12   9
4     9 3         11 8  
      5 12   11 6        
  8 7   5     1   10    
Showing puzzle number: 6386
Puzzletype: Symmetrical Sudoku
Startnumbers: 54
Difficulty: Very easy (0)
Solution methods: SiSo SC
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