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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.

531757 puzzles downloaded.

  9   8   1   3 11      
            5     3    
        7              
    12 4             1 6
12     3 5       2     10
9 3   5 2 4     12     1
7     12     3 8 6   11 9
5     9       1 4     12
10 2             1 11    
              2        
    3     12            
      2 3   12   7   9  
Showing puzzle number: 863
Puzzletype: Symmetrical Sudoku
Startnumbers: 48
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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