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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.

217337 puzzles downloaded.

        13         6     16     5
12   11 8   10         13     15    
    16         11               4
              9   7   8     12  
16   14         4     11          
      1   15         16   14   5  
                  5       7    
          8   14   4     2     13
2     3     9   15   12          
    13       14                  
  5   7   4         6   9      
          1     10         16   8
  13     12   8   7              
15               9         10    
    10     11         3   7 5   1
3     14     10         15        
Showing puzzle number: 117
Puzzletype: Symmetrical Sudoku
Startnumbers: 66
Difficulty: Very easy (0)
Solution methods: SiSo SC
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