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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.

746168 puzzles downloaded.

      6   2   12 9     7
    11         4        
9 1       4            
  4 9       3 7   11 10  
12       8     3 7      
  5         6         9
4         11         1  
      7 6     5       4
  11 8   9 7       6 5  
            12       7 3
        1         12    
5     11 10   7   12      
Showing puzzle number: 6
Puzzletype: Symmetrical Sudoku
Startnumbers: 46
Difficulty: Very easy (0)
Solution methods: SiSo SC
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