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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.

3009362 puzzles downloaded.

      15 6 5   14             2  
6       7 1   2   15     16 9   14
  10       12   3 9   14 8 15      
14   4       15     2 1         12
16 5     1   12   3   8 9 13 6 15  
  4 12   16             13 7 3    
    3 9   8 13         11     1  
    7               6       16 9
12 2       16               5    
  9     3         16 15   11 12    
    6 16 5             12   13 8  
  14 13 11 9 2   12   4   6     7 3
1         6 5     7       11   16
      13 10 11   1 12   4       9  
3   10 5     4   2   16 15       1
  16             10   13 1 4      
Showing puzzle number: 5976
Puzzletype: Symmetrical Sudoku
Startnumbers: 104
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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