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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.

7646280 puzzles downloaded.

            1 6   14 3          
3   1 14 13         16 10   4     9
      6     7       4 1     3 12
  10     15 4   2 7         14   1
  13           11       3   4   8
8   15     13   16   2   10 7 5    
  9 2 4 14 1   15   13           10
  6   16       8 14           1 13
1 5           3 6       8   14  
7           2   3   14 8 11 15 12  
    11 3 4   15   5   16     2   7
12   4   10       11           13  
13   9         1 8   2 6     4  
16 15     2 6       12     9      
2     10   3 14         5 13 12   11
          7 13   10 1            
Showing puzzle number: 15120
Puzzletype: Symmetrical Sudoku
Startnumbers: 104
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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