On the website http://magictour.free.fr/sudoku.htm, I downloaded the Sudoku puzzles from http://magictour.free.fr/top2365.
One of them is:
```
...5.167.......25.5.1.64...185.46..................76.......52....1.5....58......
```
When analyzed with `DiufSudoku.jar`, it is reported as an unsolvable Sudoku. Could everyone look into this?

