Simon Anthony (from Cracking the Cryptic) shows us an incredible sudoku set by a mathematician. See the Phistomefel Ring at: https://www.youtube.com/watch?v=pezlnN4X52g More links & stuff in full description below ↓↓↓ Cracking the Cryptic: null See Simon crack the puzzle at: https://www.youtube.com/watch?v=qvfBBhhCLxo Another Numberphile video about Sudoku: https://www.youtube.com/watch?v=MlyTq-xVkQE Thanks also to mathguy_12 (Nathan Hallmark) - see his research at: https://repository.flsouthern.edu/items/16c6d2fe-3640-409f-89f2-232ace2dbdd3 Patreon: http://www.patreon.com/numberphile Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet We're also supported by the Simons Laufer Mathematical Sciences Institute (formerly MSRI): http://bit.ly/MSRINumberphile Our thanks also to the Simons Foundation: https://www.simonsfoundation.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Videos by Brady Haran Numberphile T-Shirts and Merch: null Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/ Brady's latest videos across all channels: http://www.bradyharanblog.com/ Sign up for (occasional) emails: http://eepurl.com/YdjL9