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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.

335145 puzzles downloaded.

9   13   3     4 7 6 2 8   10    
    4   10 11 2 1 9 3           12
14 9 7 10   8       4     2     15
      8       12 2     16 9 6 11  
  2 14   15     7 10     12 13   3 4
  6 3   16 2 9 13   10 12 14   4    
3 5   11   13 16       7       10 9
15   2 1       9 4 12 8 10     13  
  7     2 14 5 16 6       10 13   3
5 14       9       16 1   11   7 8
    12   7 15 6   11 9 16 3   5 4  
1 8   4 9     15 14     11   16 12  
  16 1 7 8     10 15       12      
10     12     1       11   3 2 9 6
2           15 3 16 8 4 6   11    
    16   11 12 10 8 13     9   3   5
Showing puzzle number: 1618
Puzzletype: Symmetrical Sudoku
Startnumbers: 136
Difficulty: Harder (0)
Solution methods: SiSo SC DC XW
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