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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.

    13   12 7   6     5       16  
14   6         5 1   15   7   11  
2 16       1       11 6 14 12      
  8     15                 13   10
    1 2     9     7 8 13   5   3
16 9     4   13   15   1 3   10 14  
5     3     14             12   6
8 7   13     1 10     16 6     9  
  15     2 10     5 3     11   12 14
6   10             9     4     8
  5 12   16 11   1   6   7     10 13
4   2   9 13 15     16     6 3    
10   4                 16     7  
      16 8 4 12       10       1 2
  14   5   9   3 2         6   4
  2       6     4   13 5   8    
Showing puzzle number: 17161
Puzzletype: Symmetrical Sudoku
Startnumbers: 108
Difficulty: Super easy (0)
Solution methods: SiSo
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