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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.

1153565 puzzles downloaded.

5   14 3     13     10       4 16  
  7       6 9 5     16 15     14 13
1 6 10 12 15       7 5   8     2  
          8   12     14   15      
6       8 3 1 2             12  
  5 12 9       16       10     4  
15     1   10               8    
    2 8       6               14
9               13       16 14    
    4               8   12     3
  8     14       4       10 13 9  
  11             14 15 10 9       1
      6   7     8   5          
  1     3   14 10       12 8 15 6 2
2 16     6 12     10 9 15       3  
  10 15       4     7     13 16   12
Showing puzzle number: 2619
Puzzletype: Symmetrical Sudoku
Startnumbers: 96
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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