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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.

1063576 puzzles downloaded.

  4 11   6         9 10   5     2
    13 1       16       8   4    
  5     2     9   16 12     15    
9 2 6 3 1 10   12       15   7    
                    6 3 2   7 13
6           16 3 12             8
  10         4 11 9         16    
13 15     5   6 1 7 8 16 2   14 4  
  1 16   14 6 10 4 8 3   7     9 5
    3         2 10 15         8  
11             15 13 12           16
4 7   13 9 1                    
    8   4       14   9 12 13 10 15 6
    12     9 1   6     10     3  
    15   12       1       7 2    
10     2   7 14         5   8 12  
Showing puzzle number: 1529
Puzzletype: Symmetrical Sudoku
Startnumbers: 106
Difficulty: Super easy (0)
Solution methods: SiSo
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