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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.

212760 puzzles downloaded.

5 4   6   10 12       11 9        
1 13           16 8   12 14   6 4  
                5 15   10   7    
            5     1 4         10
  16     3 9   12   6       5   4
11 8             14 13     6   16  
15   12 10     13 8 4   5 3 16      
    13   11 15   5 7 10 9       12 2
8 15       11 1 7 10   2 4   16    
      16 1 6   13 3 14     11 12   5
  1   2     3 4             14 16
3   4       2   15   13 1     8  
12         13 10     4            
    15   9   7 1                
  6 14   13 4   11 9           15 7
        5 16       8 15   3   6 13
Showing puzzle number: 5
Puzzletype: Symmetrical Sudoku
Startnumbers: 108
Difficulty: Super easy (0)
Solution methods: SiSo
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