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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.

1149703 puzzles downloaded.

  12 13     15       10       3    
    8   3               13      
  14         10   4     15 7 8    
15           4   6 9   16       2
          3 14 1   6     15 12    
      13 12 7       8   9   2 14 11
  3 14 15     13 10       7       16
16           11 5 2       4     3
4     5       7 8 2           10
9       11       5 1     16 4 12  
7 8 10   9   15       11 4 3      
    6 16     12   13 15 7          
8       14   7 15   11           5
    11 6 16     13   5         7  
      12               1   16    
    4       2       15     11 13  
Showing puzzle number: 4081
Puzzletype: Symmetrical Sudoku
Startnumbers: 94
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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