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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.

691714 puzzles downloaded.

  9       7         4  
  6     7   2     3    
2       5           10  
    8 12 1         7    
        3 12 4   2     9
              6   1   3
8   1   11              
5     2   9 11 7        
    4         11 10 5    
  10           1       2
    3     5   9     12  
  8         7       6  
Showing puzzle number: 842
Puzzletype: Symmetrical Sudoku
Startnumbers: 44
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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