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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.

403921 puzzles downloaded.

      3 8     9 14 1   7        
13   3 16 5 12     6     1     7  
12 5 9 8     1 16 13 7 11       14  
7   11       6 13   14 4     12 3 8
14   4     15 12 8   2   5   16 13  
11     14   1           3   10 8 13
2   14   7   3     10 1     11   6
  7   4 12   15 14 16 5   9   3   1
5   7   1   9 12 3 4   10 11   6  
8   12     10 13     15   11   4   14
6 15 16   13           8   12     9
  10 13   14   16   11 8 5     15   3
1 6 8     2 11   12 9       5   16
  16       9 5 11 7 13     2 1 12 10
  8     10     3     12 4 7 2   5
        3   8 10 5     13 15      
Showing puzzle number: 2249
Puzzletype: Symmetrical Sudoku
Startnumbers: 134
Difficulty: Hard (0)
Solution methods: SiSo SC DC
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