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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.

7560726 puzzles downloaded.

5         14 3   13     4       2
    2 9     12     10           5
  10         9     14         8 13
6   4   5 16   2 11   12 8        
    3 10                     14  
  14 1   7 11           9 12 13 16  
          4   3 14 7 10         11
    12       6   2 8 3     7 10 9
13 15 5     8 4 6   1       9    
9         13 1 14 10   11          
  3 16 7 2           14 13   6 12  
  1                     13 10    
        12 7   1 4   16 6   14   10
3 9         8     15         2  
14           11     13     5 1    
7       16     13   2 5         12
Showing puzzle number: 20394
Puzzletype: Symmetrical Sudoku
Startnumbers: 98
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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