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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.

6   3   12     11 1      
          4       10   9
12 9 8 10 1       7      
          9   8       3
5 2 4 3   1   7        
7     8     6       10  
  12       6     11     5
        7   11   9 12 6 10
11       10   12          
      7       12 2 8 9 4
9   2       8          
      11 9     4   5   6
Showing puzzle number: 7401
Puzzletype: Symmetrical Sudoku
Startnumbers: 54
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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