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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.

313444 puzzles downloaded.

      1 15   2       6     9 11 4
3 5 13 7   10       6       11 2  
          12     11   16 3 2 4   6
  13   14   16 11 2 5   15       12 10
    7   3   8       1 12 14   15 5
    4 2       8 9   7     14 5 16
12 3   8 16 1   7 6 14     10     11
11     6 7   10 3 1 8   4   15    
    1   5   6 16 13 12   9 4     14
14     15     5 10 7   2 6 12   8 13
8 1 11     9   12 14       15 13    
15 10   13 4 7       2   14   3    
1 9       14   15 10 4 3   13   7  
13   16 4 2 5   1     11          
  12 6       14       4   9 7 1 2
5 2 3     8       13   1 11      
Showing puzzle number: 2080
Puzzletype: Symmetrical Sudoku
Startnumbers: 132
Difficulty: Harder (0)
Solution methods: SiSo SC DC XW
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