Sudoku

I'm sudoku freak. I have it downloaded in my cellphone so able to play sudoku whenever, wherever I have time.
It help me a lot especially when I was on doctor office waiting for my turn when I was pregnant, or to killing time when waiting for friends or hubby.
Until now, still I manage to play specially when I was rocking Megan to sleep.
I read from some source, it help to prevent dementia on old people in Japan, not bad eh, have the pleasure ti play and even got the bonuses.
So, are you sudoku Freak like me?