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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.

12 14 4   3       13   5   16     11
15 7   8       4       3 13      
11   3   5 2 13 14                
            1 8     11 2        
    8       5     13 2 14 7     16
    7       8   3              
    9       11 16       5       2
      5 14 6     8 7   11     12 9
8 5     10   16 1     13 12 11      
3       11       7 14       5    
              13   6       2    
2     11 4 14 6     1       10    
        2 8     9 10            
                6 11 14 16   1   7
      7 16       12       10   6 4
16     12   13   3       1   9 14 8
Showing puzzle number: 1729
Puzzletype: Symmetrical Sudoku
Startnumbers: 94
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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