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Sudoku puzzles irregular (Su Doku)

My database includes 1031 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row, every column, and every box contains the digits 1 through 12. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

699226 puzzles downloaded.

6     11 5   12   9   4  
  5 11   9       4 3   12
        7     11        
10 1   6     3   7   9  
    4 8 11   5 1 12      
    8 7   2            
            8   3 6    
      9 10 8   12 1 4    
  6   1   11     10   12 3
        12     7        
3   12 4       2   11 10  
  8   10   7   3 11     5
Showing puzzle number: 885
Puzzletype: Symmetrical Sudoku
Startnumbers: 58
Difficulty: Super easy (0)
Solution methods: SiSo
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