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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.

692668 puzzles downloaded.

12       11 8   7 10      
            4 3     5 1
  4 6 9   10            
3 8   2   5            
  1         6 4     7  
    3           5     10
10     4           2    
  5     10 7         1  
            5   9   2 12
            10   8 5 4  
6 12     9 4            
      11 5   12 8       7
Showing puzzle number: 41
Puzzletype: Symmetrical Sudoku
Startnumbers: 48
Difficulty: Very easy (0)
Solution methods: SiSo SC
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