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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.

2 12   8 14       1     16       4
          1   4             7 15
4   13           12 9     8   2  
  7   11     10       15   13      
  2 16   15 6 14 7   3 5         1
  6               2       16 14 5
  8 7 3     4   6     1     13 9
1 14   13     5   7 8 16          
          16 12 3   4     1   10 11
11 9     5     8   6     2 7 12  
13 3 10       2               15  
12         10 15   13 11 1 7   6 8  
      7   9       16     5   6  
  13   10     16 2           9   3
9 11             8   12          
16       6     11       10 15   4 12
Showing puzzle number: 29166
Puzzletype: Symmetrical Sudoku
Startnumbers: 102
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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