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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.

597300 puzzles downloaded.

3         15       10 2 4 5 6    
10     12   7     1 6 9         3
  11   4 1       8   13   7   2 12
  6     13   16 4   7   15   10   14
  16   6   12     5              
          8             12 5   7
                  3   13 9 15 14 2
2     10       7 14 8 15       13 1
16 4       9 7 6 15       3     5
5 1 7 2 4   8                  
12   6 9             4          
              12     7   11   6  
6   1   7   12   11 13   10     3  
13 14   15   2   8       16 4   5  
4         1 5 13     14   16     11
    9 7 6 16 14       1         10
Showing puzzle number: 3363
Puzzletype: Symmetrical Sudoku
Startnumbers: 104
Difficulty: Super easy (0)
Solution methods: SiSo
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