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Sudoku puzzles irregular (Su Doku)

My database includes 15 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row, every column, and every box contains the digits 1 through 16. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

293330 puzzles downloaded.

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