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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.

1142642 puzzles downloaded.

9       14 3         6   10 5   8
14 10   1     12   8 9 13 11 6      
  11     10       5           15 9
    3 8 6   5         15     1  
  3 13 16           11 4 9 5 10    
8           4   13       16 1    
  6     1     8                
      2 13         16     3     15
7     13     11         4 15      
                6     8     7  
    10 9       1   14           13
    11 5 4 9 3           2 14 10  
  5     16         3   6 1 7    
4 1           12       5     6  
      3 15 7 6 5   8     14   4 2
15   2 6   4         11 7       5
Showing puzzle number: 5339
Puzzletype: Symmetrical Sudoku
Startnumbers: 96
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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