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Can you solve the dark coin riddle? – Lisa Winer

Practice more problem-solving at https://brilliant.org/TedEd/
Solution to the bonus riddle mentioned at the end: https://brilliant.org/tededcoinflip

You heard the travelers’ tales, you followed the maps, and now, you’ve finally located the dungeon containing a stash of ancient coins. The good news: the wizard who owns the castle has generously agreed to let you have the coins. The bad news: he’s not quite as generous about letting you leave the dungeon … unless you solve his puzzle. Can you solve it and get out alive? Lisa Winer shows how.

Lesson by Lisa Winer, animation by Artrake Studio.

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