Puzzle Mania, the annual print section, takes a village to grow it from a kernel of an idea to the extravaganza it is today. By Sam Corbin To discuss this year’s Super Mega, please visit our guide.

For prizewinning puzzle creators, the devilish ideas are in the details. By Siobhan Roberts Friction is a force that opposes the motion of one object relative to another — and it’s always an important ...