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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.

1138411 puzzles downloaded.

    5   10 14 4 3 2              
      11 6       12   15       7 2
  7 15             10   8 9      
      13 7     9 11   14 5     12 4
  13   2 3   8   1     11 4 12 10 7
  15 12 3               7       16
        12     16 8 15   4 3 1    
10             7 3     2 15 11    
    14 15 8     1 6             12
    10 7 9   6 12 13     15        
8       5               16 9 2  
12 3 11 5 2     13   8   16 7   6  
15 8     16 13   10 5     9 1      
      10 4   9             5 13  
7 5       2   11       1 6      
              8 4 11 3 6   10    
Showing puzzle number: 1947
Puzzletype: Symmetrical Sudoku
Startnumbers: 106
Difficulty: Super easy (0)
Solution methods: SiSo
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