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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.

7573948 puzzles downloaded.

  12   16   7             13 4 8  
10       13 3           5 12      
    1     15     16 13 7   6      
3   11 13   1 4 5 8 2         7  
16 14 13   3       10   12     8    
      11 4   8           16 6 13  
  15   3         7   8 6        
6 10     1   7 11     13   4     12
13     8   9     5 12   2     1 4
        16 4   6         10   9  
  7 14 6           10   4 3      
    5     11   1       3   13 6 8
  3         11 2 12 14 1   8 16   13
      7   10 16 4     3     1    
      12 6           5 7       2
  13 16 2             10   15   3  
Showing puzzle number: 2881
Puzzletype: Symmetrical Sudoku
Startnumbers: 104
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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