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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.

1153565 puzzles downloaded.

  2   13       16   11   8     4  
9     1                   13    
14   12 8 3 5 9     1 7     15 10  
        4         9     3 7   5
        8 16     15           6  
2               14   12 11 16      
  13 11 3 9 1       7 8   12      
  7 6 14       11 2 16            
            15 1 9       10 5 14  
      9   6 10       5 2 8 1 16  
      15 2 14   8               12
  10           9     3 4        
10   14 16     7         3        
  3 13     2 11     8 6 9 5 16   14
    1                   9     4
  9     15   8   16       1   12  
Showing puzzle number: 5401
Puzzletype: Symmetrical Sudoku
Startnumbers: 94
Difficulty: Harder (0)
Solution methods: SiSo SC SB DC XW
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