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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.

1088224 puzzles downloaded.

  10   1   11   16   14         2 7
14 4     9         6     11   5  
      7   2   6     9          
      11             8   14     1
          10       8       15   11
  3 9 2   6   11               13
4   6 12         15 11       7    
        7 1   5       16     12 6
16 13     10       3   11 5        
    2       6 12         7 9   14
7               9   14   13 2 15  
3   8       16       15          
11     9   5             15      
          8     2   7   3      
  2   13     3         8     7 9
12 1         9   6   10   16   11  
Showing puzzle number: 62
Puzzletype: Symmetrical Sudoku
Startnumbers: 86
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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