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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.

398570 puzzles downloaded.

16 14 6           13   15 7 1 11 9 8
15             14   7   2        
1 3   14   8 10 6   11     4      
  13 9 1     4   14       16 10 15 11
    1       6 10 4   16 8     14  
  16   10 4     9 5   12 15 8 13 2 14
14 12 8       5 15 2   4 1     10  
        2 5 13 12 16 1   9       10
2       16   7 5 1 12 14 3        
  8     3 11   13 15 2       16 6 1
5 9 7 15 1 12   2 8     10 14   11  
  2     14 7   8 12 4       15    
11 10 2 13       4   5     7 1 12  
      6     11   10 13 5   12   7 3
        9   14   7             16
13 15 4 7 12 2   16           9 5 6
Showing puzzle number: 2612
Puzzletype: Symmetrical Sudoku
Startnumbers: 132
Difficulty: Harder (0)
Solution methods: SiSo SC DC XW
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