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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.

811026 puzzles downloaded.

  2   3   4 15     5 13       10  
9         13     10              
        3 8       9   4 1   7 15
4   15         16   7       13    
    5             6 12         1
11 10   12     1 13   2       5 9  
16   1     2 7 15             12 14
14           16 12     10 1 15 8   6
7   10 15 14 1     4 11           12
12 9             3 14 5     15   8
  5 4       12   1 16     14   11 10
3         6 11             1    
    12       4   16         7   5
2 15   9 13   5       4 11        
              11     7         3
  7       14 10     13 9   2   8  
Showing puzzle number: 44
Puzzletype: Symmetrical Sudoku
Startnumbers: 98
Difficulty: Very easy (0)
Solution methods: SiSo SC
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