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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.

1694749 puzzles downloaded.

      12     1   6     5
11 4     8     9        
    8   7       12 11 1  
  7   5 6   10       4 11
9       3   5         10
    10       7   1     9
3     8   12       5    
6         8   2       1
5 11       6   3 10   12  
  3 1 11       10   4    
        4     12     3 6
10     6   3     7      
Showing puzzle number: 1540
Puzzletype: Symmetrical Sudoku
Startnumbers: 54
Difficulty: Super easy (0)
Solution methods: SiSo
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