Pick a puzzle. Think it through. No answers handed out.

Every puzzle is a little mystery. There's no clock and no score — just you, your ideas, and a few clever ways to figure it out.

Warm-Up

easy

Gentle starters — jump in anywhere.

medium

A step up — a bit more to juggle.

hard

The toughest — dive in whenever you like.

All three bands are open — start anywhere and jump around whenever you like.