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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.

856697 puzzles downloaded.

  16           15           11    
    5   9         4 10     2   16
      6     2 4 16 14   9 1   5 13
  14     16     5     6     10 12 8
    11   10         15       8    
      2   12         3 7       15
                10   5   14      
  3   9 6     1 12   14   4 5 16 2
1 11 12 7   8   16 9     10 15   3  
      14   9   10                
9       1 2         4   5      
    2       11         16   9    
16 2 6     10     7     3     13  
7 1   8 3   12 2 4 11     16      
12   14     6 16         8   1    
    13           14           2  
Showing puzzle number: 1887
Puzzletype: Symmetrical Sudoku
Startnumbers: 94
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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