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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.

    7 9     1 14   13     12     10
    13     15 4 8         6   2  
  8 14   5             15        
12   5 4 10 7 11 3         1      
15     3     9             8    
  13 6     5 3 10 8 9 14       1 12
      8   2   12         7   5 11
  1 2   16       12 15 6       3  
  14       1 10 16       3   5 6  
4 2   13         7   8   16      
3 5       6 13 2 15 4 1     14 7  
    1             14     8     2
      14         1 2 3 5 10 16   8
        14             13   11 15  
  11   2         10 8 15     1    
10     1     16   9 6     3 4    
Showing puzzle number: 23167
Puzzletype: Symmetrical Sudoku
Startnumbers: 104
Difficulty: Very easy (0)
Solution methods: SiSo SC
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