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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 1 3 15     13 14   7 6 10  
  8   9 3 13   14 11   6 4   10 1  
2 1   8   4       14            
    15 1     3   13 16   12     2 6
14       16   6   10   9 8 12      
  11   6 5 14 1 10     16 3 8      
  3   5 9 6   4     15 2   16 8  
9     14     5 2 6       4 15 16 13
11 16 12 13       5 4 9     2     3
  15 13   14 1     2   12 6 5   3  
      10 13 2     1 15 8 9 6   4  
      2 11 5   12   10   16       4
6 13     10   12 11   7     14 4    
            9       1   11   15 10
  2 4   7 11   8 16   5 10 1   9  
  6 3 12   7 16     11 10 1 9      
Showing puzzle number: 2388
Puzzletype: Symmetrical Sudoku
Startnumbers: 132
Difficulty: Harder (0)
Solution methods: SiSo SC DC XW
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