How does Dobble (Spot It) work?

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Stand-up Maths

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Shared April 29, 2021

Check out https://www.kiwico.com/standupmaths and get 50% off your first month of any subscription!

Subscribe to Steve Mould’s channel. I sent him the next video challenge along with the Monomatch cards. http://youtube.com/stevemould

Support me on Patreon and get sent three "Monomatch Myriad" cards to check.
https://www.patreon.com/posts/50645477/

Here is the bonus 'behind the cards' video on how I made Monomatch Myriad.
https://youtu.be/_l6h8v6R7yo

It occurs to me it would be foolish to not provide Amazon referral links but don’t forget about your local independent toy retailers!
USA SPOT IT: https://www.amazon.com/s?k=spot+it&re...
UK DOBBLE: https://www.amazon.co.uk/s?k=dobble&r...

This is the student video I mentioned:
"How to make the card game Dobble (and the Maths behind it!)"
https://www.youtube.com/watch?v=oyqD1...

Double Dobble
https://aperiodical.com/2020/05/the-b...

Droste Dobble
http://christianp.github.io/droste-do...
https://mathsjam.com/assets/talks/201...

"A finite projective plane exists when the order n is a power of a prime."
https://mathworld.wolfram.com/Project...

Finite projective plane of order 4 image from here:
https://demonstrations.wolfram.com/Pr...

Catch the match!
https://boardgamegeek.com/boardgame/1...

The American Mathematical Monthly
Vol. 13, No. 11, Nov., 1906 https://www.jstor.org/stable/i349244
Vol. 14, No. 5, May, 1907 https://www.jstor.org/stable/i349250

CORRECTIONS
- At 06:35 Dimitri Provoost spotted that some of the star and cross symbols on the diagonal red lines are accidentally swapped around. Good spot Dimitri!
- I think once or twice I say "card" when I mean "symbol". I blame too much time spent with projective planes.
- Let me know if you spot any other mistakes!

Thanks to my Patreon supporters who keep me well-stocked with children's card games. And now 101 pentagons all featuring a happy little house.

https://www.patreon.com/standupmaths

Filming and grading by Alex Genn-Bash
Editing by Matt Parker
Graphics by Sam Hartburn and Matt Parker
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/bo...
UK book: https://mathsgear.co.uk/collections/b...