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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.

      8 6 7         3     16   15
16   5       14 8         3     4
      3     16 9 6 10   14   8 12 5
7 1           3                
          1     4 15 5   7 2 16  
5     1 8   10 13       11        
    13 16 2 4         9 7 6     14
          11 3 14 16         1 10 12
13 14 15         7 1 11 4          
8     7 13 14         2 5 9 3    
        16       9 6   10 14     7
  5 1 2   10 11 15     14          
                3           9 1
12 8 9   3   7 10 14 13     16      
1     5         11 16       6   10
11   7     9         8 6 12      
Showing puzzle number: 3156
Puzzletype: Symmetrical Sudoku
Startnumbers: 104
Difficulty: Super easy (0)
Solution methods: SiSo
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