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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.

676456 puzzles downloaded.

  2 16   8   10 5 12 4     14     15
  10               1   9 5 7   16
5         12         16 13     8 10
15     8   9 16           1      
      2     14   6              
12             15   14   5 3 2 7  
    8                 4 12   15  
    4 11     13 1           5    
    10           9 5     6 15    
  5   7 15                 11    
  15 9 13 16   6   3             5
              10   12     13      
      3           15 14   2     13
13 8     1 2         12         7
2   6 14 4   3               5  
11     1     12 16 13 10   3   9 14  
Showing puzzle number: 2612
Puzzletype: Symmetrical Sudoku
Startnumbers: 90
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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