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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.

1142755 puzzles downloaded.

    8   2   13   15 10 7   14     3
4     9     3         1 13   8 6
13                           11  
    10               8 14   1    
  6     10           16   5 14    
  1   15     2 13 7   14         8
                4   5 13 12   15  
  14       8 15 7 10     6 2 13    
    4 2 7     5 6 8 11       13  
  10   11 1 3   8                
16         2   14 12 7     1   6  
    6 8   4           3     2  
    2   6 9               10    
  8                           5
10 16   3 11         4     15     12
9     1   14 5 2   3   10   4    
Showing puzzle number: 5438
Puzzletype: Symmetrical Sudoku
Startnumbers: 92
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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