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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.

1066582 puzzles downloaded.

2     14   3 1     7     5      
        13 12     2     14     1 11
          10   9 3 11           13
  4   12 8   2 7     10       9  
                    5 13 16 1    
3     6     9 5 16     11        
11 16 12     8   6         13     3
  1   4                   8    
    4                   14   16  
6     8         4   7     10 13 1
        9     15 1 12     8     4
    9 13 16 11                    
  14       15     6 9   12 4   8  
12           3 4 7   11          
5 10     12     13     15 3        
      3     6     10 13   12     7
Showing puzzle number: 5010
Puzzletype: Symmetrical Sudoku
Startnumbers: 88
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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