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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.

1142783 puzzles downloaded.

    16 14                 8 12    
  3         4 8   16     9 5    
6   13     16 7     1   8        
        5   1       7     10 2 13
          11     13     12 15 8   9
    8 13     10 5     6     7   12
              7   3       14 13  
10 12   11           4 9     16 1  
  10 12     3 14           1   5 15
  13 15       2   12              
2   9     10     3 15     14 13    
16   7 3 4     13     14          
11 15 3     4       13   16        
        8   13     12 4     9   11
    1 10     3   14 5         4  
    6 12                 7 15    
Showing puzzle number: 1002
Puzzletype: Symmetrical Sudoku
Startnumbers: 92
Difficulty: Very easy (0)
Solution methods: SiSo SC
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