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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.

153814 puzzles downloaded.

    16 1     12           10      
    9       16 1 10       7   14  
      15       10       8        
    3         11               16
                               
      2 8   7     1   3   6    
8                   5     15    
  16     5 2 4 14         11 3    
    11 4         14 10 12 5     3  
    6     13                   15
    7   4   5     13   11 14      
                               
16               4         10    
        12       3       4      
  9   7       5 11 16       14    
      13           7     1 12    
Showing puzzle number: 238
Puzzletype: Symmetrical Sudoku
Startnumbers: 64
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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