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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.

6009423 puzzles downloaded.

11 16         6 2 12     5   8 7  
    1 8 3   12 4         9   2 5
  3 5 2           16   8        
        13 16         9     14   15
3   11     6       9   7 13 1 15  
          15 4   14 6     2      
1 14           9     15 2     4  
12 15 2 4 5             3     8 6
4 12     16             9 8 11 5 1
  1     15 4     6           9 16
      9     1 7   2 11          
  7 16 11 9   3       1     6   4
5   13     14         16 1        
        6   10           1 4 13  
10 2   1         9 7   6 5 15    
  11 15   2     16 10 4         14 7
Showing puzzle number: 27234
Puzzletype: Symmetrical Sudoku
Startnumbers: 106
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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