Are There Any 3-Landlocked Countries?

Video Description

UK boundary data from the OS. https://osdatahub.os.uk/downloads/open/BoundaryLine World Country data from opendatasoft. https://public.opendatasoft.com/explore/dataset/world-administrative-boundaries/table/ USA states from looking at them very closely. "English counties explained" by Map Men https://www.youtube.com/watch?v=hCc0OsyMbQk Oh look, a video about the City of London https://www.youtube.com/watch?v=LrObZ_HZZUc Target 10.b "in particular least developed countries, African countries, small island developing States and landlocked developing countries, in accordance with their national plans and programs". https://en.wikipedia.org/wiki/Sustainable_Development_Goal_10 Graphics artfully animated by Christian Lawson-Perfect. https://somethingorotherwhatever.com/ The other person in the field was Matt Watson, my tour manager. He also makes music: https://mattwatsonmusic.bandcamp.com/ Massive thanks to my Patreon supports. They are a huge amount of Alp. https://www.patreon.com/standupmaths CORRECTIONS - Now I regret mentioning the Danube river! Apart from that one aside about international diplomacy and a port: for the rest of the networks I did not include rivers, even if they are navigable to an ocean. I appreciate these would change things like London and apparently the USA has some super great lakes. - Let me know if you spot anything else! Happy birthday to Eliyahu! Filming and editing by Alex Genn-Bash Graphics by Christian Lawson-Perfect Muddy field navigating with Matthew Watson Written and performed by Matt Parker Produced by Nicole Jacobus Music by Howard Carter Design by Simon Wright and Adam Robinson MATT PARKER: Stand-up Mathematician Website: http://standupmaths.com/ US book: https://www.penguinrandomhouse.com/books/610964/humble-pi-by-matt-parker/ UK book: https://mathsgear.co.uk/collections/books/products/humble-pi-signed-paperback