video thumbnail 14:34
The unbelievable solution to the 100 prisoner puzzle.

2019-11-04

[public] 554K views, 15.3K likes, 330 dislikes audio only

channel thumbStand-up Maths
4K

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/


Alex Bellos
/youtube/video/a1DUUnhk3uE?t=23
Testing the puzzle 10 times.
/youtube/video/a1DUUnhk3uE?t=256
10 PRISONERS: 35.4365% CHANCE OF SUCCESS
/youtube/video/a1DUUnhk3uE?t=752
100 PRISONERS: 31.2% CHANCE OF SUCCESS
/youtube/video/a1DUUnhk3uE?t=756