Don your helmet and pads for this tough-as-nails version of a gridiron challenge. Easy to Play, but Hard to Solve is the motto for this deceptively simple-looking puzzle. By the time you've become addicted and find yourself unable to solve the thing, you'll realize it's not so much a motto as a warning. Nine colorfully illustrated cardboard 4-by-4-inch squares depict various unfinished images of quarterbacks, running backs, wide receivers, and linebackers along their edges. The images must be matched and the nine squares arranged in a larger square. An ingenious, elegantly executed puzzle idea, Scramble Squares will have you simultaneously blessing and cursing its inventor. --Claire Dederer

The Football Scramble Squares Puzzle is loved by fans of all ages.

It depicts football played outdoors and in the mud!

Football is the most popular spectator sport in the United States.