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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.

1463981 puzzles downloaded.

9         6         4 5
              2 11 10    
11 6       10 1   12   7  
    3 6       4   1 8 12
    1     7   6 4   5  
  2       9       6    
    6       3       11  
  8   7 9   2     5    
3 11 5   10       7 9    
  1   2   5 4       3 9
    4 5 8              
7 3         11         10
Showing puzzle number: 3933
Puzzletype: Symmetrical Sudoku
Startnumbers: 54
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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