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Sudoku puzzles (Su Doku)

My database includes 2967 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row and every column contains the digits 1 through 16. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

404194 puzzles downloaded.

10     3 16   15   4   5     14 9  
      1         8   10   4 12 6  
2       8 16       9 12 3 15   1 7
4 3 7     11   6 14 12 8 5        
    14 13 15 9       10 2 7 12 11    
  12     9 15             6 10 7 11
  4 6 12 14   13 2   8 3 10 5      
5 11     6     14 13       8   10 15
15 14   9       1 3     8     16 4
      8 4 14 12   16 11   13 3 2 5  
14 6 13 5             7 11     12  
    9 7 10 1 14       4 6 11 8    
        11 2 4 12 6   9     5 14 10
16 8   2 7 3 1       11 9       12
  15 11 6   5   9         13      
  10 1     8   5   7   15 2     9
Showing puzzle number: 668
Puzzletype: Symmetrical Sudoku
Startnumbers: 132
Difficulty: Very easy (0)
Solution methods: SiSo SC
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