The unbelievable solution to the 100 prisoner puzzle.

Yes, here is the follow-up video: https://www.youtube.com/watch?v=gusXBTyg1O4 Order Alex Bellos's book now and get a limited-edition 'Matt verified' copy. https://mathsgear.co.uk/collections/books/products/signed-copy-of-so-you-think-youve-got-problems-by-alex-bellos-pre-order Thanks to Matt Scroggs and the Chalkdust folks for helping organise the volunteers and the maths. http://chalkdustmagazine.com/ Cheers to the Ri for letting us film in their building. https://www.rigb.org/ We have free Think Maths work sheets for any teachers who want to use the prisoner puzzle in their lessons. http://think-maths.co.uk/standupmaths-videos?yt-frog#prisoner-problem CORRECTIONS - Yes, it seems we can’t spell success successfully. - Turns out we do know there is a limit. - Let me know if you spot any other mistakes! Thanks as always for Jane Street being my principal sponsor. https://www.janestreet.com/ Thanks to my Patreon supporters who help make these videos possible. Here is a random subset: Everett Chouinard Lucie Christian Martel Joost Smits Rhys Llewellyn Anthony Allan Support my channel and I can make more maths videos: https://www.patreon.com/standupmaths Filming and editing by Trunkman Productions Music by Howard Carter Design by Simon Wright MATT PARKER: Stand-up Mathematician Website: http://standupmaths.com/ Maths book: http://wwwh.umble-pi.com Nerdy maths toys: http://mathsgear.co.uk/