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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.

749283 puzzles downloaded.

  8     12 2     5      
    1 8       12       11
    7                  
4   2 1     11         8
  10   9 6 8     7      
      4 9   8          
          12   3 4      
      7     1 10 6   2  
3         9     10 2   5
                  9    
10       8       1 3    
      5     2 11     10  
Showing puzzle number: 638
Puzzletype: Symmetrical Sudoku
Startnumbers: 44
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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