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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.

6916246 puzzles downloaded.

    8 9   13 7     15 5         10
      16 4     5     12     6    
    12 4       14 6   8 9 13 15 11  
    7 3   9     16     1       4
5       3   10 9     1   4 16    
8 9             3 14           11
      15         13 12   16     1  
16       8 2           4 12 3 5 9
3 7 10 2 13           4 15       12
  13     2   9 3         5      
12           1 10             9 2
    1 8   12     14 2   10       3
10       15     7     3   16 9    
  15 5 1 12 3   13 9       10 11    
    16     4     10     7 1      
14         10 6     13 15   8 7    
Showing puzzle number: 15072
Puzzletype: Symmetrical Sudoku
Startnumbers: 104
Difficulty: Harder (0)
Solution methods: SiSo SC SB DC XW
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