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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.

9   5 1 14   8               12 13
    9     15 10     1 6 7 2 3 16 4
          11 13 9       5   2 4 14
6     11 15     7   16 1 9   14    
    2 8 13   14     5 12 11       9
  1   9         15 13 4 6 11 16 7 10
16 13 8 6   1           4   11 15  
1   10 3       15 7   9     13 5 6
3 15 13     12   16 4       6 9   11
  14 7   4           15   3 8 6 16
12 16 4 13 6 14 15 3         8   11  
11       7 2 9     3   15 12 10    
    15   2 9 7   5     14 4     3
5 7 12   1       11 14 10          
2 8 16 5 11 3 4     6 7     15    
15 9               4   8 13 7   1
Showing puzzle number: 2427
Puzzletype: Symmetrical Sudoku
Startnumbers: 134
Difficulty: Harder (0)
Solution methods: SiSo SC DC XW
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