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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.

7646280 puzzles downloaded.

1         14       7   9 11 8   16
  8 14 9   4   6 3     1   13   15
12         16 2 11 13       10   14  
    11 13     7 3   8       12   5
      11   10 8     2   5     1  
  12 5   11     14     13   9      
          6           16   14    
3 10 13     15   5       7        
        6       12   7     5 16 2
    6   16           5          
      14   1     2     11   7 9  
  11     9   15     6 1   12      
9   3       6   1 11     15 4    
  5   16       9 14 3 8         13
13   2   15     1 10   16   3 6 7  
11   10 1 2   12       15         9
Showing puzzle number: 24355
Puzzletype: Symmetrical Sudoku
Startnumbers: 102
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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