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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.

199148 puzzles downloaded.

        9     4   15 8 13 10      
            3   1 6            
14 15 13 8 5     6     11   12      
            13         16        
            10   14       16   9  
  11                   9   12   7
  10         6   4 1     5     8
  6     7         11     13      
      9     7         8     3  
3     15     16 12   5         2  
12   7   8                   1  
  13   2       5   4            
        16         12            
      7   11     15     10 6 4 12 5
            15 9   14            
      16 6 2 1   7     11        
Showing puzzle number: 19
Puzzletype: Symmetrical Sudoku
Startnumbers: 74
Difficulty: Super easy (0)
Solution methods: SiSo
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