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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.

7643065 puzzles downloaded.

4         5 9 3     8   13      
6 13 3   10         7 5   8     15
8         15         3 9   6 1  
  14     7 8 16   6 13           4
1     10     13         11 14   15  
  12   14   3   7   6     9     8
    13 16   11   8   12       10    
11     3     15   10   14 4     2  
  1     8 16   12   5     3     10
    11       14   13   15   6 7    
10     4     2   11   16   15   9  
  2   13 11         9     5     1
7           8 14   11 13 6     3  
  11 1   15 4         7         5
3     15   9 1         5   8 12 7
      2   7     8 14 12         6
Showing puzzle number: 20091
Puzzletype: Symmetrical Sudoku
Startnumbers: 106
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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