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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.

7439299 puzzles downloaded.

3   11       5 13   10           6
  16         3     8   14 5      
    10 8     9 1 13     15       2
15 2 13     10 14 16 7              
  15                 13     5    
11   2 16 9     3 8 14   10   6   15
1     6   13     11   15 4   2 14 16
  13           6     12       1  
  1       5     14           15  
7 4 8   16 14   9     10   12     1
14   16   11   8 12 1     3 9 4   10
    5     1                 2  
              2 10 6 7     16 3 14
9       4     15 2 12     1 8    
      11 13   1     5         6  
6           10   4 11       15   13
Showing puzzle number: 15885
Puzzletype: Symmetrical Sudoku
Startnumbers: 102
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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