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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.

5718278 puzzles downloaded.

8       9         14 1     12   4
  7 11     3       6   8   5    
    13     1                    
1       8   16 12         10   7 2
16   10       9 13   8         11  
12 11 15           1       4 2 9  
    3 6 1       12 7 16 4     15  
  4 2         7 5     11 14     6
6     12 7     1 4         8 3  
  10     15 12 11 16       9 6 7    
  8 14 3       4           16 2 15
  9         14   16 2       4   5
3 16   5         15 4   14       13
                    6     3    
    7   6   13       11     14 4  
14   12     8 5         16       11
Showing puzzle number: 6327
Puzzletype: Symmetrical Sudoku
Startnumbers: 98
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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