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Can you solve the alien pyramid riddle? - Henri Picciotto


1,453 Questions Answered

TEDEd Animation

Let’s Begin…

Today is the anniversary of the best-worst day of your life. The best part was discovering a subterranean city on Mars. The worst part was when you lost contact with Earth. You and the other 99 scientists have spent the year engineering your survival, but you’re almost out of water and solutions. Can you figure out how the last civilization lived on this desert planet? Henri Picciotto shows how. 

Additional Resources for you to Explore

You can find many pyramid puzzles on Henri Picciotto’s Math Education Page. (Those are best tackled before watching the riddle, since the video gives away a crucial pattern.) The worksheets on Henri’s site start with three-row pyramids, and gradually lead to the pattern. Then you become the puzzle-maker, and make pyramid puzzles for other people to solve.

Henri’s website includes more number puzzles.

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Meet The Creators

  • Educator Henri Picciotto
  • Director Igor Coric, Artrake Studio
  • Narrator Addison Anderson
  • Music Cem Misirlioglu
  • Sound Designer Cem Misirlioglu
  • Director of Production Gerta Xhelo
  • Senior Producer Anna Bechtol
  • Associate Producer Sazia Afrin
  • Editorial Director Alex Rosenthal
  • Fact-Checker Paige Downie

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