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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.

7478693 puzzles downloaded.

        9     10       14       12
      2 3   14   11   9       16 10
    9 10   13 6   1 3            
      16       11 15     12 3   6  
  7     1         10 6   14 3   15
      13 6 11 8 12       4   9 1  
16 4   3                 2 6 12  
  1 11   13 7 3     14         8  
  16         4     2 3 13   1 5  
  12 4 1                 7   14 3
  3 15   2       6 9 14 7 4      
5   2 14   12 7         15     9  
  5   11 4     7 10       9      
            10 14   16 5   12 8    
3 8       2   13   12   11 10      
15       8       4     3        
Showing puzzle number: 5995
Puzzletype: Symmetrical Sudoku
Startnumbers: 102
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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