Mah Jongg Solitaire

Its a good game. You can backtrack, there is some strategy involved and it kind of distracts you when you can't sleep but you don't want a game that is completely riveting. You know what I am talking about. You swear at 12:30 am one more round or exploration and then off to bed. A few cups of coffee in the morning and you can get through work okay. Next thing you know, you look up and it is 3:40 am and you have to be at work at 9. No coffee is gonna cure that.