Prefect for times when you know you want something to do as "fill" and know youll be interrupted, so time pressure is not a factor. Great to select from three games & multiple difficulty levels, too. Sometimes the game "gives up" even though there are more moves to play. Most of the time only a move or two remain (not enough to win), but once in a while you can go for the win. I recommend you check carefully before you give up based on the game alone.