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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.

  4     3 7   1 13   12       6  
  8 3           1 15   11       9
14     9     6     5 10   3 1 16  
6               7     3        
12 15 14     11     4       16 6    
  5     10     4 14 12 16         7
10           1         9 8 13 2  
  7 16       13           11     5
2     16           11       3 1  
  10 11 12 13         2           15
1         10 16 14 15     5     4  
    6 4       2     9     5 14 16
        1     13               2
  1 2 5   14 7     10     4     12
13       11   5 12           7 3  
  11       4   8 16   5 12     13  
Showing puzzle number: 18690
Puzzletype: Symmetrical Sudoku
Startnumbers: 98
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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