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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.

12           4     10    
2       1     12        
  9   7   2     10   3  
        6 11 7 5 2      
      11             2  
    8   5     9 11     6
6     12 4     1   5    
  1             6      
      4 3 7 5 11        
  7   6     2   5   1  
        10     2       8
    6     9           10
Showing puzzle number: 134
Puzzletype: Symmetrical Sudoku
Startnumbers: 46
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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