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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.

              1 3      
6         5         1  
  7       2 10 4   6   12
    2 10       5 9      
        8             6
  10       1 4       3  
  11       8 2       7  
7             12        
      3 1       11 2    
3   7   10 9 6       5  
  2         3         9
      8 2              
Showing puzzle number: 84
Puzzletype: Symmetrical Sudoku
Startnumbers: 42
Difficulty: Very easy (0)
Solution methods: SiSo SC
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