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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.

692136 puzzles downloaded.

  1         3          
  2 11 9   5 4   6     3
      7       8     10  
  10   6       9        
    3   10 6 2   4 8    
11     4     1       6  
  4       1     7     12
    7 8   2 12 3   10    
        11       8   2  
  6     7       3      
9     2   3 5   11 4 1  
          4         3  
Showing puzzle number: 423
Puzzletype: Symmetrical Sudoku
Startnumbers: 50
Difficulty: Very easy (0)
Solution methods: SiSo SC
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