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Sudoku puzzles 4x4 (Su Doku)

My database includes 34183 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row, every column, and every 4x4 box contains the digits 1 through 16. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

7558955 puzzles downloaded.

12         3   5   14   1   10 4  
      11       12 5 9 16     6    
    13 3       4 2 7   8   5 9  
9 16       2       6     3   7  
        12 9 10 2                
    15         8 6     13   9   7
    5     15           2 8   12  
  14     13 1       5 8   4   16 6
8 12   9   14 7       13 6     5  
  5   4 8           7     15    
7   16   11     6 1         2    
                3 4 2 5        
  13   15     9       6       14 12
  4 9   14   13 1 7       2 8    
    6     8 5 10 4       7      
  7 14   3   4   16   5         10
Showing puzzle number: 16973
Puzzletype: Symmetrical Sudoku
Startnumbers: 100
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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