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Sudoku puzzles (Su Doku)

My database includes 242 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 16. The grey boxes is even numbers and the white boxes is odd. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

222411 puzzles downloaded.

              3   14       7 8 12
5         8     2 15            
              13         2     14
12   6     1                    
      11                   14    
          10   5         4      
16       11   1 14   7 10          
      12 16             1 15      
      7 4             3 16      
          3 7   15 2   14       8
      8         12   11          
    5                   13      
                    2     9   7
15     9         14              
            10 11     6         13
7 10 12       2   13              
Showing puzzle number: 57
Puzzletype: Symmetrical Sudoku
Startnumbers: 60
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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