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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.

1013777 puzzles downloaded.

10 15       9         16 8     11  
1     11         13   3 9       6
              2 15   1 6     9  
              11   5 10   3   7  
              7   16     13 11   3
9     7         3           12  
15   4 2     11   6   8   14      
12   1   5   3   11   4   9   10  
  6   10   13   1   8   7   9   11
      16   8   12   1     4 15   10
  1           10         2     12
4   12 13     16   5              
  8   15   10 1   12              
  10     7 12   6 8              
2       3 5   14         11     8
  14     11 2         15       4 16
Showing puzzle number: 2886
Puzzletype: Symmetrical Sudoku
Startnumbers: 92
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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