Infinite Series

The Assassin Puzzle

Imagine you have a square-shaped room, and inside there is an assassin and a target. And suppose that any shot that the assassin takes can ricochet off the walls of the room, just like a ball on a billiard table. Is it possible to position a finite number of security guards inside the square so that they block every possible shot from the assassin to the target?

The Assassin Puzzle

9m 12s

Imagine you have a square-shaped room, and inside there is an assassin and a target. And suppose that any shot that the assassin takes can ricochet off the walls of the room, just like a ball on a billiard table. Is it possible to position a finite number of security guards inside the square so that they block every possible shot from the assassin to the target?

Similar Shows

Poster Image
N of 1: show-poster2x3

N of 1

Science and Nature

PBS PASSPORT

Stream tens of thousands of hours of your PBS and local favorites with WETA+ and PBS Passport whenever and wherever you want. Catch up on a single episode or binge-watch full seasons before they air on TV.