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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.

      8     13   9 16       12    
13 14   16 10   5     1   11 9     6
        9 4 14   7   13          
15 5     12 11 1 2   10   6     3  
      4       5               15
9 12       13           16   5 11 14
5   8   16 12     4 3   15       2
6         1 4 15   5 10   12 3    
    13 11   3 15   14 12 6         1
14       11   2 12     15 5   6   9
8 6 5   7           4       15 3
2               13       5      
  8     15   7   5 9 1 3     4 12
          9   6   4 11 10        
3     7 4   12     13   8 15   1 5
    10       3 11   7     2      
Showing puzzle number: 20469
Puzzletype: Symmetrical Sudoku
Startnumbers: 108
Difficulty: Very easy (0)
Solution methods: SiSo SC
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