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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.

6899791 puzzles downloaded.

  15     2 10   14           8    
        13 16   3   8     4     1
8 7 6 9   1     11 2         10 13
1         5 8     13 10   7      
  14   1     5 8 7   4 16 12   15  
              4   9 13          
4     2   13       5 14   6 16   10
13   10   6         11            
            15         10   7   2
5   15 13   3 2       9   1     11
          14 16   5              
  9   8 12 11   7 2 16     3   4  
      6   12 13     14 5         3
12 1         14 15     3   8 11 13 16
2     14     6   13   12 7        
    16           8   11 4     6  
Showing puzzle number: 16554
Puzzletype: Symmetrical Sudoku
Startnumbers: 100
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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