How does Dobble (Spot It) work?

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

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.

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

[Zitronenscheibe]

After the infamous Parker Square comes the long awaited successor: The Parker Pentagon

[Bigandrewm]

Here's a fun game: actually print out all 10, 303 cards and sell them individually, maximum 1 per person. Then, a person who bought one who meets another person who bought one can compare their cards and find out what matches.

[muellerhans]

The reason why this game doesn't include 57 cards is indeed that the printing company that is used by asmodee (the game company that acquired the rights to Dobble) can only print 55 cards on a print sheet. That's what asmodee told to a german math YouTuber (DorFuchs) which they sponsered to promote the game.

[_FirstLast_]

The "Happy Little House" story was so funny at the end of all the sweaty maths. Love how the universe just gave him that little gift at the end, and he decided to share it with us!

[noahbaden]

It's funny. Matt says that he and Steve Mould are both close to 1, 000, 000 subs, when the reality is actually that they are both close to *the same* million subscribers.

[ericpeterson]

In the beginning God said, "Let n be an integer greater than 1"

[gregjensen]

Summary of Stand-up Maths: "What Matt has done: It's on brand."

[Motinu]

German maths youtuber Dorfuchs asked the producer of the game about the 2 missing cards and the answer was that only 55 cards fit on a print sheet. In his video at about 7:52, automated subtitles in english available.

[__-cdug]

When he spotted the happy little house instantly, after I spent 5 minutes not finding it, I though he was some sort of savant

[Mrsparky]

Others might call it a parker dobble, but I'll use a term from earlier in the video it's a 'doh'bble.

[bloergk]

Who would have thought there could be such SORROW in the short phrase "happy little house"...

[nicksteele]

This is, with no exaggeration, a question I've had for YEARS. The first time I saw a variation on this game it just PLAGUED me as to how they managed to pull this off. Literally can't wait to see.

[KaiLucasZachary]

I work professionally as a tutor, and using your guide, I've created my own version of Hebrew Dobble so that I can help people learn how to identify Hebrew letters and vowels.

This video is the most comprehensive explanation of the game that I've ever seen.

[wouterlahousse]

What is your nightmare about?

Pythagoras: irrational numbers
Euler: e=3
Cantor: infinity
Einstein: Heisenberg's uncertainty principle
Galois: duelling
Parker: A happy little house...

[wrathofnerds]

"I was so close to not admitting, but...it's on brand"

[nocturnhabeo]

I feel like every programmer on the planet has done this type of embarrassing mistake. You're awesome man.

[cjjoyce]

Can't believe you got Steve to film himself trying to find the happy little house

[Maseiken]

N: "I wish I could be an integer."
Mathematicians before 1906: : "Absolutely not."

[Corwin]

I love your ability to take giant mistakes, make them hilarious jokes, and then build a message that it's OK to be imperfect. Come for the laughs, stay for the life-changing attitude shift. And more laughs.

[matheuscastello]

the fact you printed the first 101 rows on accident is the cherry on top of an already amazing and hilarious video, i loved it hahaha