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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.

335144 puzzles downloaded.

11 13     10 7 14 16 3 1     15   2  
  14 7             10   15   6 16 3
1   4 14 9 8       2 5     10    
15       6   13   14 3 2   12 11 5 10
  9 10 8     1 7     15   11     5
16 8   4 3 10 2   15 11   5        
  12 1 3 8 13 9           7      
    5     15   1   16 11   3 13 6 4
8 10 15 11   4 3   2   16     14    
      6           7 14 10 2 5 1  
        1   12 3   8 9 16 10   11 6
2     10   1     7 14     16 8 12  
7 5 3 2   9 16 14   4   8       11
    11     6 8       10 14 4 15   1
10 15 13   2   11             3 8  
  11   16     5 15 1 6 3 9     10 7
Showing puzzle number: 2848
Puzzletype: Symmetrical Sudoku
Startnumbers: 136
Difficulty: Harder (0)
Solution methods: SiSo SC DC XW
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