The puzzling popularity of Su Doku

It's the latest craze in games but there isn't a computer graphic in sight.
Su Doku began its gentle attack on the nation last year, and versions can now be found in four national newspapers. Addicts are as obsessed as 1980s teenagers fixated on the Rubik's cube.

So what's the big deal about these little rows of boxes on a page?

An unscientific poll brought two types of reaction to the hybrid Japanese name Su Doku. While some bemused colleagues had never heard of it, others rather uncomfortably lined up to confess their addiction to the game.For Details.