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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.

14     1   8 16 6 10   9   15      
2         3     11       16   10 12
10 4 3   12     5 1              
      12   10 14           11      
  2 5     6       1     8   12 11
7       14   12   6 3         4  
12   6 10         7     9   16    
              11   8   5 7      
      4 16   13   8              
    10   15     3         4 8   14
  9         2 4   11   13       1
13 15   16     8       1     5 11  
      3           4 15   10      
              16 5     3   7 14 4
6 12   9       7     14         13
      5   13   10 16 7 8   3     6
Showing puzzle number: 985
Puzzletype: Symmetrical Sudoku
Startnumbers: 94
Difficulty: Very easy (0)
Solution methods: SiSo SC
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