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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           10 13 9 4      
3 6     16         4 5   11      
    11   15 1 8             7 6 13
14 13   16     2   7   6     9   8
  9 7   3 13                 11  
      1 8 14   5     4 15   2 16  
13   5   10   4       11   9   14  
15 14               7 1   13     4
16     3   8 11               12 2
  5   12   2       15   10   6   11
  8 2   14 10     5   7 12 16      
  10                 2 13   15 7  
9   14     16   13   5     7   1 6
10 2 4             16 15 11   12    
      7   15 10         6     5 9
      5 12 4 14           10      
Showing puzzle number: 33125
Puzzletype: Symmetrical Sudoku
Startnumbers: 104
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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