From Numberphile.

Ben Sparks explores hidden depths of a seemingly simple game. More on Jane Street’s AMP program at https://jane-st.co/Numberphile-AMP-2026 (sponsor) — More links & stuff in full description below ↓↓↓

An extra snippet on Numberphile2: https://youtu.be/lz2POMYd4YM
And a 4.5-minute longer version of this video can be watched by Patrons: https://www.patreon.com/posts/150089653

Ben Sparks own website (you can book him for talks and training, etc): https://www.bensparks.co.uk/

More Ben on Numberphile: https://www.youtube.com/playlist?list=PLt5AfwLFPxWLDKmnxLg8477hrxY33LL6q

The game can be played without the grid at https://15game.bensparks.co.uk/ and can be played with the magic square grid at https://15game.bensparks.co.uk/gameTTT.html

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 are also grateful for support from the Ben Delo Foundation – https://delo.org/

NUMBERPHILE
Website: http://www.numberphile.com/

Video by Brady Haran and Pete McParlan (who did the stop motion!)

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Brady’s latest videos across all channels: http://www.bradyharanblog.com/

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