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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.

315821 puzzles downloaded.

15   6   12             8 1 13 5 16
9   8 7             14   6   1 12
          16 7 12 14 13     15 11 3  
  7       4 12   8 15 16 2 14 3    
6     11   5     9 14     8 15 16  
14 3   12   15 5     1       6 9 7
  5   16 2 1 15   6   3 14     13 4
2   15 10     6   7 8 1   3   4  
  1   14   8 16 5   2     4 10   9
1 14     15 6   7   12 4 5 16   10  
13 2 16       14     10 6   11   12 3
  12 14 2     10 1     9   7     11
    3 8 1 10 2 13   9 11       14  
  13 5 4     9 8 2 16 12          
12 10   5   11             13 2   6
10 16 12 13 6             9   1   8
Showing puzzle number: 1095
Puzzletype: Symmetrical Sudoku
Startnumbers: 136
Difficulty: Hard (0)
Solution methods: SiSo SC DC
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