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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.

5283374 puzzles downloaded.

4     7 14                 11 16 10
    10   6         4            
  5             16 6 14 2   4 8  
            2   15 13 11 10 12   14  
  10       13     14 5       8    
  11   13       10 3   7     14    
    12 14   2 6 5 1   8 11 10 9    
  1 15 16 7 14   11             6  
  14             11   12 13 16 1 4  
    8 2 5 9   14 6 15 1   13 3    
    16     1   4 9       8   5  
    1       16 2     4       7  
  16   8 13 15 1 3   14            
  7 3   16 8 10 9             12  
            4         3   6    
11 15 13                 12 9     8
Showing puzzle number: 17909
Puzzletype: Symmetrical Sudoku
Startnumbers: 102
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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