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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.

2 16 8   10             4   13 7 9
14       11       16       10 5 6  
        1 9 5 14   7     16      
      5 7   8     14       1   15
  11 13       10     5 16   15      
  9 2 3     14 16         11 4 10 7
  14 16         8   15 3   5   2  
6   15 12 5       4           14  
  6           5       14 4 15   10
  12   2   8 15   7         3 11  
3 15 5 14         10 4     8 12 16  
      9   13 1     12       2 5  
11   6       9     10   16 3      
      16     11   2 13 4 8        
  10 3 13       15       6       16
4 8 14   13             3   10 9 5
Showing puzzle number: 22139
Puzzletype: Symmetrical Sudoku
Startnumbers: 108
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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