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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.

912966 puzzles downloaded.

  4     16   8       7          
    16   13     1     6   5      
        6 7       4 1       8 13
  8 1   4     14   2 16     12 15  
    2 9 1       8   10     16    
3 1     9 8       11 13         6
12 16   8 5 13 11 15   1       3    
      14     12   3     15 7      
      5 12     8   16     9      
    13       7   12 10 8 1 14   16 5
16         5 13       15 2     1 3
    8     16   6       3 12 10    
  3 4     6 5   14     9   13 7  
11 14       9 4       2 6        
      2   14     1     4   11    
          12       7   11     14  
Showing puzzle number: 2370
Puzzletype: Symmetrical Sudoku
Startnumbers: 100
Difficulty: Very easy (0)
Solution methods: SiSo SC
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