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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.

7396276 puzzles downloaded.

1         2 8 3 15   14 16       7
    10 3 12 1 16 15 6         14    
    12   9     6       8     5  
8 16 13     7 4 14             15  
15 4       11 14   7       9   3 8
  3 14   4     9   12   11       15
5 6   12         4       11 13 7 14
                      15 5      
      16 10                      
10 15 5 14       11         3   16 12
7       2   5   12     10   8 6  
4 12   9       8   5 2       11 10
  9             8 15 1     16 2 4
  2     13       10     14   3    
    6         10 9 16 13 2 15 7    
12       16 14   4 3 7 5         9
Showing puzzle number: 27869
Puzzletype: Symmetrical Sudoku
Startnumbers: 106
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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