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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.

6 5 10 12   9     2     8 4 13    
16   3   14     8   11   5       9
  16   4 10     11 5 13 14 3     8 1
  10       4   6 12 8 16     1 5 15
    7     8 2 10   14 5 16 15     11
    4 10       16   1   2 11 3 7  
13 7       15   3         8 9   6
12     16   3     10   6   2     14
11     14   10   9     1   7     13
3   2 8         6   13       11 10
  14 6 11 1   12   16       3 8    
2     13 3 5 11   8 4 7     6    
7 2 9     11 4 15 1   12       14  
10 13     6 7 8 4 14     1 16   9  
4       16   9   7     14   2   3
    14 5 2     1     11   6 4 16 8
Showing puzzle number: 2773
Puzzletype: Symmetrical Sudoku
Startnumbers: 132
Difficulty: Hard (0)
Solution methods: SiSo SC DC
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