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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.

371660 puzzles downloaded.

      3 8   5 9     6       14  
5   11     3 7   6 13 1 8 9 4 16  
9   1     5   2 11 15 7   3      
  8 4   5   2       12 6 7      
2 11   13 15       4 3   1     9 14
13 16         9 4 2   14 5 8 6 7 1
    5   1 2 10   16         14 3 15
    2 5 10     13 8   4   15 9 12  
  15 16 2   10   1 5     7 4 8    
3 7 8         11   2 10 14   15    
10 2 6 9 3 16   7 12 14         15 4
1 10     9   15 6       3 13   4 8
      14 16 8       11   9   1 6  
      6   1 12 16 3   9     13   5
  6 13 10 7 11 3 15   9 16     2   12
  5       4     13 8   2 16      
Showing puzzle number: 855
Puzzletype: Symmetrical Sudoku
Startnumbers: 138
Difficulty: Harder (0)
Solution methods: SiSo SC DC XW
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