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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.

289905 puzzles downloaded.

        4     12 10   3   16 8 15 1
  2     7   16     13   5 1     4
    4 5 2   7 16     11     14 13  
  8 12 10   3 2     4 15   9 5    
11 16       13 10   14   4 2   6 7 8
15 3       8     5     13 6 7 10  
13     15   10 12 14       6   9   11
2 10 15     7 5 1 11 6       16    
    3       13 4 7 16 10     2 1 6
4   1   5       16 9 8   11     10
  1 6 13 11     9     7       2 5
5 7 11   3 4   8   1 12       9 16
    13 8   15 14     11 1   4 3 5  
  5 2     11     13 3   7 8 1    
10     9 16   11     7   15     6  
12 11 8 16   2   13 4     3        
Showing puzzle number: 1056
Puzzletype: Symmetrical Sudoku
Startnumbers: 134
Difficulty: Harder (0)
Solution methods: SiSo SC DC XW
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