Can you use mirrors and light to defeat a vampire lair?

Can you solve the vampire hunter riddle? - Dan Finkel · 3:52 · Video: TED-Ed · Watch at the source

In short: Step into a dark cave as a vampire hunter. This brainteaser challenges you to use a sequence of mirrors and a diffuser to redirect a beam of sunlight into a hidden chamber.

Dan Finkel presents a logic puzzle centered on light manipulation. To illuminate the vampires' sleeping chamber, you must strategically place a diffuser so that sunlight, ricocheting through a series of mirrors, can flood the lair.

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