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# The Coin Hexagon - Numberphile

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**Published on May 3, 2018**

Featuring Alex Bellos. See the accompanying Dudeney Pentominoes video: https://youtu.be/wZ1E_CM7MqA More links & stuff in full description below ↓↓↓ More Alex Bellos videos: http://bit.ly/Bellos_Playlist Coin playlist: http://bit.ly/coins_videos Box of Puzzles: https://youtu.be/Co7Ph4zo1P8 Math Jokes: https://youtu.be/JJQWtGm3eIs Related Bellos books on Amazon... US links Can You Solve My Problems: https://amzn.to/2Fzo59K Puzzle Ninja: https://amzn.to/2rhd4ob UK links Can You Solve My Problems: https://amzn.to/2w6isjO Puzzle Ninja: https://amzn.to/2HL31mE Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outr... And support from Math For America - https://www.mathforamerica.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 Patreon: http://www.patreon.com/numberphile 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

NumberphileSee also the pentominoes video released along with this one:

Emmanuel Pineda LeónHold on that was too easy

rasmus9311solved it but i worked it out backwards first

HebaruSanIt also works with blueberries

R PanThat Nepali coin in animation is beautiful

RafaelFor me, the coolest part is that by doing this puzzle you build a "perfect" hexagon with the coins!

Kasper JoonatanThe ten pence coin is quite beautiful. We in Finland also had beautiful coins before changing to euros :(

HogibaerIt's a lot easier to solve, if you "reverse-engineer" from the hexagon shape.

pepkin88Starting from the end helps finding a solution.

Mushroom CubeDamn everyone is saying this was easy but i couldn't figure it out after 10 minutes.

neoni did it and then

Kenny RIt's actually an impulse test. This puzzle is actually easy and they wanna see how many post how easy it is.

kouriiHuh, got it in like 15 sec or less. Immediately thought that first 'trap' way he mentioned, and from there the solution was obvious to me. And I'm no genius or anything. Just another illustrative example of how we all see things in different ways, and different things will be obvious to some while being quite elusive to others

DanielBritish coins don't look very interesting. Imo, they don't seem very

Julia DIY / Easy DIY crafts - How to makeHow exciting and interesting!

MarerittYou say there is only one rule - the coin you move must be touching two other coins when you're done moving it. If that were the case, I could move three coins at once and have a hexagon in 1 move without breaking that rule. However, there are

Olf MombachThanks for the spoiler warning

jeremy brettwhat are the coins in

Dragoonking17This puzzle isn't that difficult but he's totally right about that forgetting thing. When I looked at the screen I solved it in about a minute in my head. After getting some coins to make sure I was right, I already forgot the solution and had to solve it again :D

Niraj AcharyaNepalese coins in thumbnail