How does Dobble (Spot It) work?

How does Dobble (Spot It) work?

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Subscribe to Steve Mould’s channel. I sent him the next video challenge along with the Monomatch cards.

Support me on Patreon and get sent three "Monomatch Myriad" cards to check.

Here is the bonus 'behind the cards' video on how I made Monomatch Myriad.

It occurs to me it would be foolish to not provide Amazon referral links but don’t forget about your local independent toy retailers!

This is the student video I mentioned:
"How to make the card game Dobble (and the Maths behind it!)"

Double Dobble

Droste Dobble

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

Finite projective plane of order 4 image from here:

Catch the match!

The American Mathematical Monthly
Vol. 13, No. 11, Nov., 1906
Vol. 14, No. 5, May, 1907

- 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.

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
US book:
UK book: