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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.

1065913 puzzles downloaded.

      2 8       6 7            
    13 11 16   5           14   1 7
      4     1 15   12 11 8 10   16  
15           9   5 10            
2 15 11 8                   12    
    9 3   6     1   10 12        
12       5 2   7 3         1 4  
            12       9       11  
  8       12       6            
  3 4         8 16   1 14       12
        15 11   5     12   1 13    
    7                   2 6 14 8
            8 2   5           11
  11   16 12 1 14   13 2     9      
9 4   5           14   10 16 3    
            3 9       6 12      
Showing puzzle number: 5102
Puzzletype: Symmetrical Sudoku
Startnumbers: 88
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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