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Sudoku puzzles diagonals (Su Doku)

My database includes 5816 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. The diagonals must also contain 1 through 16. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

1049880 puzzles downloaded.

  8 10   1     12 13   7   3     4
        8         4 10 16 7      
5   12   13   6   11     8   10 14 9
          7     15         6    
9   6       4     3 15          
        9     2       4 5   12  
      11           6 13       15  
4   3   14     6   10     1      
      12     10   14     2   3   11
  11       9 12           2      
  14   15 6       12     10        
          8 14     11       5   1
    5         7     4          
1 7 2   12     9   5   15   11   8
      9 11 6 16         14        
16     10   1   5 6     11   14 3  
Showing puzzle number: 4982
Puzzletype: Symmetrical Sudoku
Startnumbers: 90
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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