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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.

6772519 puzzles downloaded.

    13       16     4 15   7 5    
  8             14   16 12   4    
15 11 5   12   9 14                
    14       15       10 6     9 13
    15   6   2             8    
    7 6   15     13   8         1
4       16     11     12       10 3
14 3 8 9     1 4           2   5
8   2           5 6     3 16 14 11
7 13       16     11     9       2
10         6   12     14   4 9    
    11             7   13   6    
13 6     9 4       11       7    
                3 2   10   15 16 9
    4   10 3   15             12  
    9 2   13 12     14       11    
Showing puzzle number: 18751
Puzzletype: Symmetrical Sudoku
Startnumbers: 94
Difficulty: Very easy (0)
Solution methods: SiSo SC
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