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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.

691706 puzzles downloaded.

        12         4   6
11     1         3      
9           7 10 2      
6         5         1  
3     7   6 12       5  
    7         8 9   11 4
4 11   8 10         5    
  6       1 11   5     12
  9         5         11
      4 1 10           5
      12         1     9
8   6         11        
Showing puzzle number: 699
Puzzletype: Symmetrical Sudoku
Startnumbers: 46
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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