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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.

  3   14 11   16           13 8    
13   7             14 5 11 1   12 3
  11 1 2   12 6             4    
10   12         4   16 2 7   6    
  13 3 15 1     12     16 10     6 2
6 7   12 4 10 15 9       2   11 1  
    11     2 8         13       10
                    7       9  
  14       4                    
16       13         7 10     2    
  2 9   5       14 15 6 3 11   10 16
11 6     7 9     2     8 5 14 3  
    10   9 16 5   4         3   1
    2             11 15   8 10 13  
1 12   11 2 13 14             9   5
    15 13           12   14 2   7  
Showing puzzle number: 15537
Puzzletype: Symmetrical Sudoku
Startnumbers: 106
Difficulty: Super easy (0)
Solution methods: SiSo
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