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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.

592260 puzzles downloaded.

            11 13   12       14 7  
      14 8   2 4   10   15       5
    12       6 7 5              
  1   8 16         2     11 10   4
5 12         3 10 15   6 4        
      6     16         3   1 11 9
1   11 2       6       16        
  3   13   8 15 1 12   11          
          16   3 10 15 2   1   13  
        6       1       9 7   10
6 13 1   9         16     8      
        15 13   2 9 11         5 16
16   14 1     8         11 13   2  
              16 8 3       5    
10       14   12   13 5   2 15      
  5 13       10   4 14            
Showing puzzle number: 4706
Puzzletype: Symmetrical Sudoku
Startnumbers: 96
Difficulty: Very easy (0)
Solution methods: SiSo SC
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