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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.

11   12     6     3 13     7 8 10  
6   14   9 8   3   4       13 16  
  9   14 2 16   11 6 5 13     3   15
5     9       14 16 3            
      3     12 4   10   2 16 11 13 9
  13   2 1   10 6     4     12 8 3
10 14 8 6 4   11       5       3  
14 15 3 4 6         1 12 9   16   13
7   11   16 5 3         6 12 14 15 4
  10       2       7   1 15 4 5 12
3 11 6     10     2 15   13 14   4  
15 3 13 8 7   5   4 9     1      
            14 5 9       10     8
12   1     11 13 7 10   3 16 2   9  
  6 7       9   8   14 5   15   1
  1 16 11     4 8     2     10   7
Showing puzzle number: 2054
Puzzletype: Symmetrical Sudoku
Startnumbers: 134
Difficulty: Harder (0)
Solution methods: SiSo SC DC XW
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