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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.

5836090 puzzles downloaded.

      16 1     11         3      
  15           14     2       6 11
5   10 8 13 6   9   3       7    
12 13   6   15         7 4 9   16  
    8 10 6   13     5   14   1    
            5   16   12 1 14   10  
          7 10   2 8       11 12  
14 11       4       6 10          
          9 1       6       11 14
  6 7       3 15   1 16          
  16   5 8 14   6   9            
    1   16   2     4   8 13 10    
  1   12 15 8         13   7   14 5
    6       11   9   8 7 15 3   12
16 4       2     10           9  
      7         5     11 10      
Showing puzzle number: 16863
Puzzletype: Symmetrical Sudoku
Startnumbers: 98
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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