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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.

    3   10         6 11  
  6   1       3 2   12 10
4 2           1   9    
8                   4 1
        6 8 5   1     7
          1 2          
          6 9          
2     10   5 8 6        
12 5                   9
    7   12           10 11
6 10   7 8       9   2  
  8 4         2   1    
Showing puzzle number: 880
Puzzletype: Symmetrical Sudoku
Startnumbers: 48
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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