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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.

1046637 puzzles downloaded.

  1 7 4   11   10     3 2
    9       12 4 6 5    
        6         10   8
5     3 1   10          
9       11       12      
12   11               8  
  10               3   1
      6       8       7
          12   9 11     4
11   6         1        
    10 1 8 5       6    
8 5     9   6   10 4 1  
Showing puzzle number: 8509
Puzzletype: Symmetrical Sudoku
Startnumbers: 50
Difficulty: Very easy (0)
Solution methods: SiSo SC
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