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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.

175685 puzzles downloaded.

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