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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.

221379 puzzles downloaded.

1                 12     10      
  13     8     11 5 16   14     7  
        5         13   11 9   4  
8                              
      6 3         7       5   16
        15                 6   7
  4               6 9         14
      7 1                      
                      7 15      
2         11 6               16  
5   12                 3        
9   8       13         10 3      
                              15
  9   14 16   3         2        
  1     4   2 8 6     15     10  
      10     7                 11
Showing puzzle number: 168
Puzzletype: Symmetrical Sudoku
Startnumbers: 60
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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