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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.

301794 puzzles downloaded.

  10 15   1   6   8 5 4   11     3
  6 8     2   16           1   10
    16 11 5 9   3       1 8 14 10  
11 5 3   15 6 12   10   16   14 4   7
  1   6   15   13     3     11 4 14
  2   10   4 8 1 5 11   13     9  
      4 11       2 15   5 9 8    
  13 9     11 7 5   16 8       15 6
9 16       3 4   14 13 10     7 11  
    14 9 4   11 12       10 6      
  11     16   2 14 12 10 5   15   8  
6 15 4     14     11   9   3   1  
15   2 7   10   8   12 6 16   3 5 11
  14 7 1 12       4   15 9 13 5    
8   5           3   11     2 6  
2     5   1 13 15   3   8   10 16  
Showing puzzle number: 2878
Puzzletype: Symmetrical Sudoku
Startnumbers: 136
Difficulty: Hard (0)
Solution methods: SiSo SC DC
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