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# The Assassin Puzzle
- URL: https://www.cascadepbs.org/show/infinite-series/episode/the-assassin-puzzle-x70rlg/
- Published: 2024-04-02T22:52:11.000Z
- Updated: 2025-08-21T06:36:42.000Z
- Description: Can you save the target from his assassin in a square room with bouncy walls?
- Author: Cascade PBS Staff
- Tags: Infinite Series, Season 2, Episode 19, #ZZZ_Episode_d29c9b20-7cfe-4ca9-a068-b6cd96006a84, #episode, #ZZZ_Show_0efdefa6-fb6f-44e5-96f1-baf9a8c090e2, #geo-us, #v1.16

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?