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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.

12 10 13 14     4 2 9 1         15  
4   6   7 10 5   14 12     16   1  
  16               3     5   6  
3       13   16 11     2 6        
                    7     12   9
    8 9     2 7         6     1
16 13       9   4   14 1   7   3  
  11             15     3   8 5 14
13 12 14   15     5             4  
  15   1   7 8   3   13       11 6
11     3         5 10     9 13    
10   5     11                    
        16 3     12 13   15       11
  1   13     15               12  
  3   4     11 12   8 5 10   14   16
  14         9 13 16 2     1 15 8 3
Showing puzzle number: 24006
Puzzletype: Symmetrical Sudoku
Startnumbers: 102
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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