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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.

368579 puzzles downloaded.

5   4   12 1   3 7 16     14   2  
2   5 3   9 7 1 4       16 8   14
13     10 5         4   6 2   12  
16 1 11   4 2         8 5       6
  7   2 16 6       3     11 5 4 8
    1     5 6   8 12     4 15    
  14   15   8   7 6   12 1 13      
    8 4   16 13 10 11   14 12   7 1  
  13 15   7 11   2 12 9 1   10 3    
      8 11 15   9 10   13   3   7  
    6 9     11 4   14 5     10    
1 5 12 16     15       9 14 8   10  
12       9 7         16 4   13 15 3
  8   14 13   1         11 7     2
8   2 12       6 14 11 15   1 4   7
  4   5     3 14 9   2 13   1   12
Showing puzzle number: 468
Puzzletype: Symmetrical Sudoku
Startnumbers: 136
Difficulty: Harder (0)
Solution methods: SiSo SC DC XW
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