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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.

  7 13 12     9 15 16   14   8   10 11
  13 11   12       8   1 7   15 5 16
11   5   4   14       8 3 9     15
12     7 6   10       5   16 2 11 9
10 11 7 1 15     4   16   2 13      
    12       15   2   9 8 3 4    
9 4         7 2   5         16  
14 3 6     12 5 8         15      
      9         11 12 6     8 1 14
  10         11   13 14         15 2
    14 8 7 9   3   2       12    
      3 5   16   10     1 4 14 6 8
16 1 3 14   7       6   15 12     13
6     5 13 4       8   10   9   12
5 16 2   14 8   7       9   11 12  
13 8   2   1   14 12 11     5 10 9  
Showing puzzle number: 184
Puzzletype: Symmetrical Sudoku
Startnumbers: 130
Difficulty: Hard (0)
Solution methods: SiSo SC DC
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