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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.

787411 puzzles downloaded.

        3 5     15 13   1 8 10 12  
7 4       2     14 10 12         6
  10   3     7     9            
13     12 10           16 7 9      
10     2   11 4     12   3 14      
        6 16           14        
14   6     8     4       12      
3 11 4 9       1             10 16
15 9             5       4 13 14 3
      7       15     3     2   10
        1           13 15        
      13 4   12     8 6   15     5
      10 5 7           12 6     13
            2     11     5   1  
11         1 14 6     10       9 2
  3 5 4 11   9 12     14 16        
Showing puzzle number: 1088
Puzzletype: Symmetrical Sudoku
Startnumbers: 94
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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