What were we doing the last few hours? Taking photos, playing scrabble, solving sudoku puzzles.
This is Sudoku for those who do not know what they are.
They are getting so so popular. Even on public transport, you see pple solving them.

So, the secret to solving when you are stuck? Get an expert! We had a friend who is an expert!
For those who love sudoku, if someone in the bus or train solves it, and you get to see the puzzle, do you ever have the urge to tell the person the answer? I have to restrain myself. haha...