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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.

221790 puzzles downloaded.

      6 9   3   8              
    11     14 2     9   7     5 16
      3         13             8
        6               4   9  
5 16   14     6       8         4
          11             5      
  6 8 9 10       7              
11       15           9          
          8           14       10
              2       8 14 11 3  
      2             5          
16         13       2     8   4 9
  9   13               1        
3             6         11      
6 14     7   16     8 10     1    
              3   13   15 6      
Showing puzzle number: 234
Puzzletype: Symmetrical Sudoku
Startnumbers: 66
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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