Your interstellar police squad has tracked a group of criminals to a cluster of seven planets. Now you must apprehend them before their reinforcements arrive. Of course, the fugitives won’t just stay put – they’ll try to dodge you by moving from planet to planet. Can you devise a sequence for searching the planets that’s guaranteed to catch them in ten warps or less?

This challenge is an exercise in simplification, a strategy that can help reduce the number of variables so that potential scenarios can be isolated and worked through. Can you solve the seven planets riddle? Yes, you can.

Come for the TED-Ed logic puzzle. Stay for the sponsored Hermione, Harry, and Ron bonus puzzle at the end.

Next: Can you solve The Temple Riddle? The Locker Riddle? The Fish Riddle? The river crossing riddle? Or The hardest logic puzzle ever created?

See more videos about...