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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.

495813 puzzles downloaded.

2 3 13 12 11     5   4            
10 6         9 7 12     1 15 11    
14                 3     2     13
    9       13         6     3 16
        5       16   15 3   14 8  
        7     10   14     4   9 12
  1               12 5         11
7     10 3   8             1 15 5
15 2 10             13   4 9     1
1         6 15               11  
11 8   9     10   3     16        
  4 6   9 2   3       11        
3 12     10         6       16    
13     8     14                 9
    4 15 1     9 5 7         13 8
            12   8     2 6 4 1 3
Showing puzzle number: 396
Puzzletype: Symmetrical Sudoku
Startnumbers: 94
Difficulty: Very easy (0)
Solution methods: SiSo SC
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