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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.

167408 puzzles downloaded.

    4               7   6      
          10   5 8     2        
3 11         12             8 9  
    14   7   8 3       1 5 10    
16     3             9       2  
    1 12         6              
        9       10           6  
          8     3         11   5
1   3         10     2          
  16           1       5        
              14         2 5    
  8       2             14     15
    6 15 16       1 8   3   4    
  9 12             7         13 16
        13     12 2   11          
      7   1               3    
Showing puzzle number: 145
Puzzletype: Symmetrical Sudoku
Startnumbers: 66
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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