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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.

1153565 puzzles downloaded.

    12   3 2 10   14             4
6   2   15         12 4     1 5  
15         8 12 13                
  9   1   5 7       11 15       13
4     10         6 8 2   1   13 3
3 13   2 12     10   11       9   5
9 14     2               8 6    
    16 6 8                      
                      3 5 10    
    10 9               8     16 6
13   3       15   11     14 9   4 1
11 2   4   13 5 1         14     8
10       11 6       14 5   2   1  
                1 3 8         15
  8 13     14 2         11   3   7
12             4   13 15 2   8    
Showing puzzle number: 4789
Puzzletype: Symmetrical Sudoku
Startnumbers: 96
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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