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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.

756740 puzzles downloaded.

  3     10           6 11
  8 4   9 3   10   7    
            2   8      
7               6   1 10
  5 2   11   1          
    12 11           2   8
3   7           12 11    
          8   7   3 2  
5 6   9               1
      8   2            
    11   7   5 8   9 12  
12 2           6     8  
Showing puzzle number: 721
Puzzletype: Symmetrical Sudoku
Startnumbers: 48
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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