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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.

  10 8 11   3 13 7   12           15
5 9   4 8   2               13 1
    6   12             16     5  
    12         4 14 8   5     9 11
  7 4   13         16 6 2 1   10 14
      15 16 12 8             9   7
      2   6 10                  
      5 3     2   13 15   11      
      1   2 11   10     6 12      
                  1 12   13      
12   5             7 11 13 8      
11 14   10 6 5 12         4   1 15  
10 6     7   3 5 8         16    
  5     10             14   13    
14 8               9   3 10   12 2
3           1   13 6 16   7 15 8  
Showing puzzle number: 23601
Puzzletype: Symmetrical Sudoku
Startnumbers: 100
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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