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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.

1921124 puzzles downloaded.

  5 3 12 4 1     7      
      7 5     11   2 1  
    8 11 10     2       6
  1       4       10 9  
5                 8 7  
        1   10   6     4
3     2   7   6        
  7 6                 10
  12 1       3       6  
9       3     7 2 1    
  3 2   11     8 10      
      8     2 1 9 6 11  
Showing puzzle number: 9778
Puzzletype: Symmetrical Sudoku
Startnumbers: 54
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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