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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.

  3     1 4 13 14   15     8 9 12  
      1       7   2     6      
6     15 8       13   9 4   7   16
        15 16 5 6                
3             2 1 5         9 6
10       14     13   6 11   16 5 15  
1   7             13 15 2 3   8  
  6   13 5 8   11             14 1
11 5             16   10 3 4   7  
  10   7 16 1 14             11   12
  2 3 4   12 11   15     9       10
15 16         10 8 12             5
                7 9 5 15        
4   11   2 6   15       8 5     9
      8     9   6       7      
  7 15 10     8   11 14 4 1     13  
Showing puzzle number: 4381
Puzzletype: Symmetrical Sudoku
Startnumbers: 106
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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