Caution: Explosive. Handle with care.
But I have noticed that the level for SUDOKU in Times of India is disappointing, they are a way to easy and the solution is also provided on the same day which is not challenging. The level is also not sequential, sometimes it is easy and sometimes it is medium. I have hardly come across any toughest SUDOKU in Times of India newspaper. But I enjoyed every moment solving them in The Hindu newspaper, they used to give the solution next day, so I used to eagerly wait for that as well.
No life without Sun