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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.

7 1   6 10   16 14     3 9     13  
            7     4 8 11 12      
  8     15       1   10          
3   9   11       7   14 2 6 10   15
4   8   1 15   7 3   13 12        
    15         10         11 4   9
6     9       12         15   8  
                  8       16 5  
  7 14       13                  
  11   5         8       7     4
9   13 8         14         15    
        14 9   2 13   7 15   1   11
8   6 13 4 10   11       14   3   1
          5   15       10     12  
      1 7 16 6     5            
  15     2 3     9 1   13 10   4 16
Showing puzzle number: 270
Puzzletype: Symmetrical Sudoku
Startnumbers: 96
Difficulty: Very easy (0)
Solution methods: SiSo SC
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