How does Dobble (Spot It) work?

2021-04-29

[public] 394K views, 45.6K likes, 120 dislikes audio only

3840×2026

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&ref=nb_sb_noss?_encoding=UTF8&tag=stanupmath-20

UK DOBBLE: https://www.amazon.co.uk/s?k=dobble&ref=sr_1_1?_encoding=UTF8&tag=stanupmath-21

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=oyqD1Sg5M4Q

Double Dobble

https://aperiodical.com/2020/05/the-big-lock-down-math-off-match-22/

Droste Dobble

http://christianp.github.io/droste-dobble/

https://mathsjam.com/assets/talks/2015/ChristianPerfect-DrosteDobble/#/

"A finite projective plane exists when the order n is a power of a prime."

https://mathworld.wolfram.com/ProjectivePlane.html

Finite projective plane of order 4 image from here:

https://demonstrations.wolfram.com/ProjectivePlanesOfLowOrder/

Catch the match!

https://boardgamegeek.com/boardgame/1321/catch-match/credits

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/books/610964/humble-pi-by-matt-parker/

UK book: https://mathsgear.co.uk/collections/books/products/humble-pi-signed-paperback