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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.

1146370 puzzles downloaded.

  10     11   7         6     12 8
              4     14 16   11   1
      7 5     9     1       10  
  8   15         12         14 16  
16   15     6   2 7 14   12       4
4   6       14 5       9 11      
    10 14 15       6       3   9  
  5       10   11     15 4 14 12    
    16 10 1 7     13   8       3  
  3   8       16       5 12 10    
      2 6       3 9       5   16
15       3   8 10 4   16     9   7
  2 8         7         5   13  
  16       1     14     15 4      
3   13   14 5     9              
1 14     16         5   3     2  
Showing puzzle number: 369
Puzzletype: Symmetrical Sudoku
Startnumbers: 96
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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