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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.

5500959 puzzles downloaded.

    2 7     10       15     12    
8         5 14     12     9   10  
  16 5           10     13 4 15 6  
      3 15 12 13     9   4   1 8  
3   11     9     8   2 6     4  
2       1 6     13 16 11 7       10
  15 7     11   5 4   9   6      
        13   8     14           2
7           5     13   14        
      9   3   10 15   5     14 12  
16       11 15 9 2     8 12       4
  6     4 14   13     3     8   15
  7 16   5   2     1 6 8 14      
  12 10 1 16     9           2 15  
  13   5     11     15 16         9
    9     1       4     3 5    
Showing puzzle number: 20195
Puzzletype: Symmetrical Sudoku
Startnumbers: 104
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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