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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.

          11 1 4 6      
1           6   12      
      12 7     8   1 3 5
5 9 2 11       10       6
        6 8     9 2    
  8         5     12   1
4   12     10         8  
    11 10     7 12        
6       3       4 10 12 2
3 6 4   9     1 2      
      5   6           8
      2 11 3 4          
Showing puzzle number: 4986
Puzzletype: Symmetrical Sudoku
Startnumbers: 54
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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