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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.

1     15     16   9 11 3     14 13 7
  15           9     11   1 10 7 16
  8 10     14 15 1 6 7 2 16        
10     7     8 15         6     9
2   12 13     4 3       7 15 1 6 14
9 6 2 14 7 15       12 4     3   5
        11       13   15 5     3 12
  16   9 14   12 6   2 1 13 7 11    
    3 10 12 5 6   16 4   2 14   15  
12 4     1 2   14       15        
5   14     7 1       16 3 9 15 10 4
7 14 15 8 16       5 6     13 9   10
13     4         12 10     11     6
        10 3 11 4 15 9 14     12 8  
14 5 8 1   10     11           4  
16 9 7     13 5 8   14     2     15
Showing puzzle number: 469
Puzzletype: Symmetrical Sudoku
Startnumbers: 134
Difficulty: Hard (0)
Solution methods: SiSo SC DC
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