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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.

2266329 puzzles downloaded.

          4   7   11 2  
1         5 12   8     4
  9   10     2 8   6 7 12
8 10           4     3  
  11   9   6            
7 6 3   2              
              6   2 4 7
            10   11   6  
  4     3           5 9
3 8 6   11 2     10   12  
9     4   10 3         5
  7 11   12   6          
Showing puzzle number: 5981
Puzzletype: Symmetrical Sudoku
Startnumbers: 54
Difficulty: Super easy (0)
Solution methods: SiSo
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