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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.

7375141 puzzles downloaded.

    6 9   1     13   5       8 16
  16 11     6 8 2 14           9  
4       11   13 14 8   9     10   5
      13 5     10   6            
  11 3             5     9      
      16 9 3 14       12     6    
  9     4 8   11         14 2 5  
  1 2 10   5   15 3       8 12 4  
  15 7 2       6 11   13   12 9 1  
  4 9 8         2   14 7     11  
    13     15       3 10 5 16      
      1     5             8 7  
            12   10     13 1      
9   15     14   5 4 11   3       2
  13           4 5 8 15     14 3  
12 2       10   1     6   5 11    
Showing puzzle number: 27829
Puzzletype: Symmetrical Sudoku
Startnumbers: 104
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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