Check out Slate.com's Ron Rosenbaum's anti-ode to that puzzling population of puzzle enthusiasts out there.
I used to have a girlfriend that would play sudoku on her cell phone when we would get in bed for the night. Sure, that quite possibly (probably) is a reflection on the level of excitement I bring to the bedroom but even so I never could quite wrap my mind around that, or times when she would shout with glee when finding sudoku books on clearance sale. I always struggled for the right word, but Rosenbaum finds it for me: reductive.
Check it out.
4 weeks ago