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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.

5233584 puzzles downloaded.

      4   11       8     16 13    
  10 8           4 12           14
1           10 8   3   2     4  
12               11 1 13 7   3 2 10
  7   11   9           14       8
9         13     8     11   14 1 3
15   3 10 14   16 4   5   9        
14 8   2     12         1   6    
    10   7         6     9   16 12
        13   8   5 14   15 7 4   1
4 6 5   12     15     9         13
8       2           12   10   5  
11 2 6   1 5 13 12               16
  16     9   2   10 11           7
10           3 7           12 9  
    4 7     6       8   3      
Showing puzzle number: 19351
Puzzletype: Symmetrical Sudoku
Startnumbers: 100
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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