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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.

218770 puzzles downloaded.

                  6   10     1  
        7 2           14        
5       13     10     11         7
      2           9            
        4 6         8   3     16
                9   6          
  3   14 5     7   16     6     4
    11   10             7 2   15  
  16   1 2             8   12    
2     7     12   10     5 1   16  
          13   1                
9     11   8         14 3        
            2           10      
14         7     13     16       1
        3           5 2        
  9     11   4                  
Showing puzzle number: 155
Puzzletype: Symmetrical Sudoku
Startnumbers: 64
Difficulty: Harder (0)
Solution methods: SiSo SC SB DC XW
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