How does Dobble (Spot It) work?

Ойын-сауық

Check out 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. / stevemould
Support me on Patreon and get sent three "Monomatch Myriad" cards to check.
/ 50645477
Here is the bonus 'behind the cards' video on how I made Monomatch Myriad.
• How I made a game with...
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: www.amazon.com/s?k=spot+it&re...
UK DOBBLE: 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!)"
• How to make the card g...
Double Dobble
aperiodical.com/2020/05/the-b...
Droste Dobble
christianp.github.io/droste-do...
mathsjam.com/assets/talks/201...
"A finite projective plane exists when the order n is a power of a prime."
mathworld.wolfram.com/Project...
Finite projective plane of order 4 image from here:
demonstrations.wolfram.com/Pr...
Catch the match!
boardgamegeek.com/boardgame/1...
The American Mathematical Monthly
Vol. 13, No. 11, Nov., 1906 www.jstor.org/stable/i349244
Vol. 14, No. 5, May, 1907 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.
/ 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: standupmaths.com/
US book: www.penguinrandomhouse.com/bo...
UK book: mathsgear.co.uk/collections/b...

Пікірлер: 2 600

  • @standupmaths
    @standupmaths3 жыл бұрын

    To clarify: all patreon supporters will be emailed 3 Monomatch Myriad cards that no else will get. Solely so they can check them. Report findings here: www.patreon.com/posts/50645477 And thanks again to KiwiCo for making great crates and sponsoring this video: www.kiwico.com/standupmaths

  • @TheCaphits

    @TheCaphits

    3 жыл бұрын

    Make this into an NFT (and send me one for the idea?)!

  • @rohitraghunathan

    @rohitraghunathan

    3 жыл бұрын

    I don't think it'll matter but 10303 isn't divisible by 3. You'll have a card leftover

  • @Agrajag22

    @Agrajag22

    3 жыл бұрын

    At 20:35 I think you meant to say “two SYMBOLS that match” (not cards)

  • @SioxerNikita

    @SioxerNikita

    3 жыл бұрын

    CAn't help you with the million subs sadly... Been subscribed for years.

  • @gz3zbz

    @gz3zbz

    3 жыл бұрын

    You didn't link to Steve Mould's channel.

  • @deanperkins2091
    @deanperkins20913 жыл бұрын

    The legendary “Parker’s Dobble”

  • @Wolforce

    @Wolforce

    3 жыл бұрын

    Yes thanks i was looking for this

  • @TimMaddux

    @TimMaddux

    3 жыл бұрын

    “It is on-brand.” -Matt Parker

  • @jamesonhardy2126

    @jamesonhardy2126

    3 жыл бұрын

    Kind of looking like he's doing it on purpose now.

  • @EPMTUNES

    @EPMTUNES

    3 жыл бұрын

    Parker little house

  • @aperson1

    @aperson1

    3 жыл бұрын

    you have no idea how right you were.

  • @Zitronenscheibe
    @Zitronenscheibe3 жыл бұрын

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

  • @fdagpigj

    @fdagpigj

    3 жыл бұрын

    At this rate, we'll be getting the Parker Hexagon in 2026

  • @Ravlen1

    @Ravlen1

    3 жыл бұрын

    "it's on brand"

  • @TheZotmeister

    @TheZotmeister

    3 жыл бұрын

    This right here was the comment I was looking for. Would have made it myself if I didn't find it.

  • @jonathanc8845

    @jonathanc8845

    3 жыл бұрын

    I found it after I made it.

  • @ggw1776

    @ggw1776

    3 жыл бұрын

    Parker Happy Little House

  • @Bigandrewm
    @Bigandrewm3 жыл бұрын

    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.

  • @AleksandrStrizhevskiy

    @AleksandrStrizhevskiy

    3 жыл бұрын

    That's actually brilliant! What a wonderful meetup idea.

  • @aldude9511

    @aldude9511

    3 жыл бұрын

    As you find each symbol on another card you can have them initial it!

  • @_shadownotes_

    @_shadownotes_

    3 жыл бұрын

    They should be able to steal it! It would be the biggest game of spot it ever.

  • @JungleLibrary

    @JungleLibrary

    2 жыл бұрын

    Then it just happens to be that it's always the happy house

  • @VivekYadav-ds8oz

    @VivekYadav-ds8oz

    2 жыл бұрын

    "Find your soulmate with this simple (tarot) card game!"

  • @__-cd9ug
    @__-cd9ug3 жыл бұрын

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

  • @driesvanoosten4417

    @driesvanoosten4417

    3 жыл бұрын

    I did spot it!

  • @adampayton4695

    @adampayton4695

    3 жыл бұрын

    There's also a second pair! An circle with an arrow inside! However they are different colors so maybe it's also like the "catch the match game"?

  • @MD-vs9ff

    @MD-vs9ff

    3 жыл бұрын

    He is "some sort of" savant. A Parker savant.

  • @romaindubray2325

    @romaindubray2325

    2 жыл бұрын

    @@adampayton4695 That symbol really made me question wether or not he had made them match color as well... decided I'd gone too far to give up now, so that HappyLittleHouse™ was a real relief to find, even though it was one of the last symbols I checked.

  • @jonahwolfe3396

    @jonahwolfe3396

    2 жыл бұрын

    Same! It took me 4 minutes to find the house. After three minutes I was about to give up but decided that I wanted to prove to myself that my attention span can last more than 3 minutes. But yah, when I saw that he found it in 5 second I was like “what?! How is he so good at this game!” Then I was laughing after he revealed what actually happened.

  • @noahbaden90
    @noahbaden903 жыл бұрын

    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.

  • @unclejimmy7

    @unclejimmy7

    3 жыл бұрын

    When I saw Steve's video in my subscription box, I said to myself, "nice, I can't wait to see Matt's video in my subscription box."

  • @vigilantcosmicpenguin8721

    @vigilantcosmicpenguin8721

    3 жыл бұрын

    When is Matt going to examine the set theory of his and Steve's subscribers?

  • @xyz39808

    @xyz39808

    3 жыл бұрын

    Certainly the most _boring_ way to optimally order a million unique items

  • @YouLoveBeef

    @YouLoveBeef

    3 жыл бұрын

    @@vigilantcosmicpenguin8721 Well I would be the anomaly then. I am not yet subscribed to Steve Mould. Didn't know of him until today.

  • @epauletshark3793

    @epauletshark3793

    3 жыл бұрын

    @@YouLoveBeef it is quite a good channel. And yes, I do love beef.

  • @ericpeterson6520
    @ericpeterson65203 жыл бұрын

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

  • @johncavanaugh3960

    @johncavanaugh3960

    3 жыл бұрын

    Made me laugh harder than it should have.

  • @maxwellsequation4887

    @maxwellsequation4887

    3 жыл бұрын

    And there was light

  • @evan3732

    @evan3732

    3 жыл бұрын

    And then there was MATH!

  • @etheraelespeon1986

    @etheraelespeon1986

    3 жыл бұрын

    And lo’, the n - 1 photons sprang forth

  • @maxwellsequation4887

    @maxwellsequation4887

    3 жыл бұрын

    @@etheraelespeon1986 and lo' then div E = ρ/ε

  • @muellerhans
    @muellerhans3 жыл бұрын

    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 KZreadr (DorFuchs) which they sponsered to promote the game.

  • @AleksandrStrizhevskiy

    @AleksandrStrizhevskiy

    3 жыл бұрын

    Should have made a separate print sheet that just prints the missing cars and sorts them into the other sets. But I'm not a business man, maybe that would be too much extra cost for no gain.

  • @hornylink

    @hornylink

    3 жыл бұрын

    @@AleksandrStrizhevskiy that literally doubles the printing costs of the cards to just add 2 cards. (they're gonna charge you for the whole sheet, going from 1 to 2 sheets doubles pricing)

  • @AleksandrStrizhevskiy

    @AleksandrStrizhevskiy

    3 жыл бұрын

    @@hornylink Well it shouldn't double it. You would have one extra sheet for every couple of sheets(55/2 = 22 sheets). But yes they would have to pay more and very few people would appreciate the fact that the set is complete.

  • @hornylink

    @hornylink

    3 жыл бұрын

    @@AleksandrStrizhevskiy nah look at OP, they say that all 55 cards fit on 1 print sheet, so to add 2 more bringing it to the total 57 they'd need to add a second print sheet. You could technically 27 of sheet one per copy of sheet two and shuffle around cut outs to make use of the extra space on sheet two, but that only works if you're doing it by hand, changing a factory line to do that would be an absurd cost.

  • @AleksandrStrizhevskiy

    @AleksandrStrizhevskiy

    3 жыл бұрын

    @@hornylink Yeah thats what I was saying printing a special sheet that just has two differ cards. But yes then you have to retool the factory so that the extra cards get sorted with each sheet of 55 and, it makes sense that it isn't worth it.

  • @Maseiken
    @Maseiken3 жыл бұрын

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

  • @sorellana2154

    @sorellana2154

    3 жыл бұрын

    lmaooooo

  • @barbapappa99

    @barbapappa99

    3 жыл бұрын

    OK, I'll bite. Why?

  • @TSiAhmat

    @TSiAhmat

    3 жыл бұрын

    oh and before i forget, N stands for any number between (- infinity) to (+ infinity) [if we are talking about math]

  • @Maseiken

    @Maseiken

    3 жыл бұрын

    @@barbapappa99 before that no one suggested letting it.

  • @tapatorta

    @tapatorta

    2 жыл бұрын

    I love you

  • @wrathofnerds
    @wrathofnerds3 жыл бұрын

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

  • @jfein7273

    @jfein7273

    3 жыл бұрын

    Classic Parker Square

  • @martinnovacek9151

    @martinnovacek9151

    3 жыл бұрын

    Came here to say this :D

  • @nanamacapagal8342

    @nanamacapagal8342

    3 жыл бұрын

    @@kyozpsycho Prof pic checks out

  • @StarstormHUN

    @StarstormHUN

    3 жыл бұрын

    @@jfein7273 At this point I'm kind of afraid to ask, but where does Parker Square originally come from?

  • @FLScrabbler

    @FLScrabbler

    3 жыл бұрын

    @@StarstormHUN 😂😂😂👍🏻 Well, it was an almost perfect magic square that Matt had come up with...

  • @gregjensen2482
    @gregjensen24823 жыл бұрын

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

  • @vigilantcosmicpenguin8721

    @vigilantcosmicpenguin8721

    3 жыл бұрын

    It's a Parker brand.

  • @zenotfun9759

    @zenotfun9759

    3 жыл бұрын

    it's a real parker square of a mistake

  • @_FirstLast_
    @_FirstLast_3 жыл бұрын

    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!

  • @josiahsimmons9866

    @josiahsimmons9866

    2 жыл бұрын

    Not gonna lie, the happy little house made me so mad because I spent like 10+ mins trying to find the symbol :rofl:

  • @hansrens2453

    @hansrens2453

    10 ай бұрын

    The hilarious twist for me : watching the video, this man is amaaaazing. And when he 'found' those 2 smiling houses, then found them again, it was like : so the third card is on a row that links the first two. Nice, he simplified the game. I interrupted the video to have a supper break, wondering whether another 3 cards in his 101 selection would share a "row" ? Row, row,row the cards, merrily row the cards ? Btw: Was the number 101 an random choice, or deliberately chosen : find the link 101? And after supper break : WOW he admits having chosen that one single row. Amongst 10 000 + cards, pick 100, or 1%, and it ends up to be Where is Wally, over and over and over... This learned me another thing: it might very well be fun, searching Wally pictures, to find a second match. Probably not intended, but would we find one?

  • @Motinu
    @Motinu3 жыл бұрын

    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.

  • @Mrsparky492
    @Mrsparky4923 жыл бұрын

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

  • @xxgn

    @xxgn

    3 жыл бұрын

    I was looking for this comment.

  • @cjhanson7936

    @cjhanson7936

    3 жыл бұрын

    Oh my glob! That is literally the first thing that came to mind when I was watching. Then I saw your comment. Hilarious!!! ....classic Parker thing to do 🤣

  • @oz_jones

    @oz_jones

    2 жыл бұрын

    Parker Pentagon.

  • @bloergk
    @bloergk3 жыл бұрын

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

  • @bonifaceawa

    @bonifaceawa

    3 жыл бұрын

    Bob Ross?

  • @wouterlahousse9637
    @wouterlahousse96373 жыл бұрын

    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...

  • @bonifaceawa

    @bonifaceawa

    3 жыл бұрын

    Parker, and Bob Ross!

  • @uklu

    @uklu

    2 жыл бұрын

    Matt's nightmare is obviously about the clown icon

  • @phichyasuadsawad1583

    @phichyasuadsawad1583

    Ай бұрын

    No e is 2.718281828459045

  • @KaiLucasZachary
    @KaiLucasZachary2 жыл бұрын

    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.

  • @homelessrobot

    @homelessrobot

    10 ай бұрын

    pretty cool application

  • @jubileeYAVEL

    @jubileeYAVEL

    5 ай бұрын

    That's awesome!!!!!!

  • @JavierYahiko
    @JavierYahiko3 жыл бұрын

    i love how monomatch myriad ended up giving parker square vibes

  • @nex

    @nex

    3 жыл бұрын

    Yeah; I immediately thought “cool, he's made Parker pentagons” :)

  • @AaronHollander314

    @AaronHollander314

    3 жыл бұрын

    It took me 10 minutes to find the match. The more I look the more I saw new symbols.

  • @nocturnhabeo
    @nocturnhabeo3 жыл бұрын

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

  • @oz_jones

    @oz_jones

    3 жыл бұрын

    Parker Match

  • @nocturnhabeo

    @nocturnhabeo

    3 жыл бұрын

    @UCjlY2PsJoAlrzhK-N8djvVA Saying to yourself "Oh I'll just take the first one of X data set" which results in an annoying or unhelpful pattern you didn't think would show up.

  • @skyjoe55

    @skyjoe55

    3 жыл бұрын

    "I see no reason random() shouldn't always return 3"

  • @LCrowsbeak

    @LCrowsbeak

    3 жыл бұрын

    @@skyjoe55 or 7

  • @stijnvandrongelen5625

    @stijnvandrongelen5625

    3 жыл бұрын

    @@skyjoe55 Are you a Debian maintainer?

  • @r0cketplumber
    @r0cketplumber Жыл бұрын

    "Let n be an integah!" That's how you get people hooked! What an opener! I hooted at that.

  • @Corwin256
    @Corwin2563 жыл бұрын

    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.

  • @cjjoyce27
    @cjjoyce273 жыл бұрын

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

  • @miriamrosemary9110

    @miriamrosemary9110

    3 жыл бұрын

    So funny when he finds the happy house on another card and he's so confused

  • @vigilantcosmicpenguin8721

    @vigilantcosmicpenguin8721

    3 жыл бұрын

    I love how it really showed the passage of time.

  • @AlphaPhoenixChannel

    @AlphaPhoenixChannel

    3 жыл бұрын

    Can we get confirmation on if Steve was TOLD they were all the smiley house prior to that clip? Because either way, I was rolling...

  • @arfyness

    @arfyness

    3 жыл бұрын

    @@AlphaPhoenixChannel I really think he didn't tell him.

  • @wolfelkan8183
    @wolfelkan81833 жыл бұрын

    "Catch the Match" also known as "Make Fun of Your Colorblind Friends"

  • @yuvalne

    @yuvalne

    3 жыл бұрын

    +

  • @trickytreyperfected1482

    @trickytreyperfected1482

    3 жыл бұрын

    +

  • @aviko9560

    @aviko9560

    3 жыл бұрын

    +

  • @sandeepwangde269

    @sandeepwangde269

    3 жыл бұрын

    +

  • @francogonz

    @francogonz

    3 жыл бұрын

    +

  • @jonarcherii
    @jonarcherii3 жыл бұрын

    On your pentagon, there is another set of symbols that (kinda) match. They both have a circle with an arrow in it, and they appear the same except the color is different. My theory is that one was an “up” arrow, and one was a “down” arrow, but that bit of information got lost in the randomization of the rotation of each symbol.

  • @tune_fisch0269
    @tune_fisch02693 жыл бұрын

    For the German viewers here: Dorfuchs made a very good Video about Dobble a while ago

  • @mandygoring2001

    @mandygoring2001

    3 жыл бұрын

    And he included an explanation why there are only 55 cards in the game...

  • @SuperMrMuh

    @SuperMrMuh

    3 жыл бұрын

    @@mandygoring2001 aaand... what is the explanation?

  • @Sebb747

    @Sebb747

    3 жыл бұрын

    ​@@SuperMrMuh It's this video at roughly this timestamp: kzread.info/dash/bejne/qK2Ntad9d7jKnMo.html TL:DR he asked the manufacturer and it's indeed limited by printing; the shop can print exactly 55 cards on a sheet.

  • @jankisi

    @jankisi

    3 жыл бұрын

    I thought I had seen something like that! Thanks

  • @golightning291
    @golightning2913 жыл бұрын

    a game for -6 people? sounds like my social circle

  • @nicksteele5613
    @nicksteele56133 жыл бұрын

    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.

  • @NoisqueVoaProduction

    @NoisqueVoaProduction

    3 жыл бұрын

    Yeah, I also was asking myself, puzzled by it. It reminds a lot of the logic behind SET. Although SET is a bit more straight forward to the issue while in Dobble it is not part of the gameplay to know how it works... But really cool applied math about... Higher dimension? Projective planes? That sort of advanced math... Pretty cool

  • @aidanwalter2823

    @aidanwalter2823

    3 жыл бұрын

    I bet you literally could have 🙃

  • @Fantastic_Mr_Fox

    @Fantastic_Mr_Fox

    Жыл бұрын

    yeah me too. Well I wouldn't say it has plagued me but yeah I remember 7 year old me or smth like that playing dobble one day (not the first time I had played) wondering A) if all the cards truly had only one match with any other card and B) how they pulled it off

  • @biranfalk-dotan2448
    @biranfalk-dotan24483 жыл бұрын

    Matt is a professional at making #ParkerSquare, the rest of us just Dobble in it

  • @skyjoe55

    @skyjoe55

    3 жыл бұрын

    Get out!

  • @cj719521
    @cj7195212 жыл бұрын

    Paused at 7:00 to say this: Okay, but how long did it take to put the 7x7 Feno plane in order like that? The amount of detail you consistently put into these videos is astounding (and so satisfying)! Thank you for the work you do!

  • @liborkundrat185

    @liborkundrat185

    2 жыл бұрын

    My guess is: - The start was to separate all cards with a single symbol, in this case the clown. This left him with 49 cards to be put into the grid and 8 involving the clown to be left on the outside. - Then he searched for 7 cards with a shared symbol among the 49, putting them into a single row. - Then he searched for 7 cards with a shared symbol among the remaining (42) cards, putting them into another row. - Then he repeated the previous step, chopping the amount of remaining cards down to 35, then 28, afterwards 21, 14, and finally the bottom row of 7. - Then he rearranged all symbols within each row so there was a shared symbol (same match) in the whole column. And by process of mathematics, that should be enough to get the final picture, as the symbols in the diagonals are defined by the rows and columns. So, it probably didn't take *too* long with a system like this, but still, fairly long. Especially with two cards missing, which he only had to make (and add) afterwards.

  • @Trumpington1

    @Trumpington1

    2 жыл бұрын

    @@liborkundrat185 it’s more involved than this. You’ll see if you try for real…

  • @Trumpington1

    @Trumpington1

    2 жыл бұрын

    1. Choose a symbol that links infinity cards eg clown 2. Pick any card out of those 8 clown cards that will represent rows. From now on, the 7 other ’row symbols’ on that card will be common with the symbols linking each row. 3. From remaining 47 cards, arrange 1st row of 7 cards to be all cards containing one of those ‘row symbols’ 4. So the same for other rows At this stage columns don’t match and you’ll see a couple of blank spots due to having 47 card to fill 7x7 5. Pick another clown card to represent columns. 7 other symbols on card aside from clown are ‘column symbols’ 6. Keeping the rows intact reposition cards so that each column has common symbol with column card. At this stage rows and columns all match up nicely but the main top left to bottom right diagonal probably doesn’t. You can switch any row / column around to make a diagonal but you’ll probably find the parallel diagonal doesn’t match. 7. Find the main diagonal infinity card by looking for common symbol between lefthand most 2nd row card and top right card. Now rearrange grid so that main diagonal matches the common symbol between the top left and one of the other symbol on the diagonal infinity card. Don’t rearrange top 2 rows or left column during this. Should be done…! Nb for step 1 don’t choose symbol where there are cards missing eg snowman.

  • @liborkundrat185

    @liborkundrat185

    2 жыл бұрын

    @@Trumpington1 I see. That's pretty neat, and much more accurate/systematic than I thought. Cool for figuring it out.

  • @michielhorikx9863

    @michielhorikx9863

    Жыл бұрын

    @@Trumpington1 This indeed works very nicely, thanks for the algorithm!

  • @SquintyGears
    @SquintyGears3 жыл бұрын

    😂 The unintended print of spot the atom had me crying

  • @quinnmartin4236
    @quinnmartin42363 жыл бұрын

    The fact that you ended up going full circle and making Spot the Atom accidentally is just too conveniently ironic. God has conspired against us all and it was hilarious.

  • @tristanwegner

    @tristanwegner

    3 жыл бұрын

    Yeah, I was so happy that he decided to admit it!

  • @johannschiel6734

    @johannschiel6734

    3 жыл бұрын

    A parker monomatch game...

  • @Intermernet

    @Intermernet

    2 жыл бұрын

    God may not play dice, but he definitely plays "spot the happy little house".

  • @IRONMANFAN-oc9fr

    @IRONMANFAN-oc9fr

    2 жыл бұрын

    He said in the video that maths is all about spotting patterns and he has inadvertently PROVED this very fact! HAHAHAHAHAHHAHAHAHA

  • @dracuul78
    @dracuul783 жыл бұрын

    I have always wondered what magic was needed to design the Dobble cards, thanks for this perfect (and hilarious) explanation. I'm so amazed how well you structure your videos and use these excellent visuals. Starting with the silly 'spot the atom' version, and referring back to it later, I was in tears from laughter...

  • @F_L_U_X
    @F_L_U_X3 жыл бұрын

    0:04 It also says that the hour-glass is 15 feet tall.

  • @zacharybarbanell1064
    @zacharybarbanell10643 жыл бұрын

    Having done the math before, and having also wondered why there's 55 cards instead of 57, I came to the reasonable conclusion that it's because, since the main way to actually play the game starts with a single card in the center, the remaining 55-1=54 cards can be evenly divided among various numbers of players.

  • @matthewstuckenbruck5834

    @matthewstuckenbruck5834

    3 жыл бұрын

    Interesting, but why then is the junior version 30 cards? 29 doesn't split very easily. Are the rules different?

  • @alxjones

    @alxjones

    3 жыл бұрын

    This generalizes in an interesting way. If you have N cards to divide amongst a set of players, what is the "best" number of cards to leave out? You could look at the closest "highly divisible number" less than or equal to N, or maybe the number less than or equal to N with the most factors. You might want to prioritize smaller factors since they should represent a more typical group size. You can model this as a question about the LCM of subsets of {1,...,N}. Definitely some interesting mathematics to explore there.

  • @88porpoise

    @88porpoise

    3 жыл бұрын

    Money is on someone thinking the multiple of five just looks nicer.

  • @MrTyler918273

    @MrTyler918273

    3 жыл бұрын

    I would guess it doesn't have a mathematical explanation; rather a marketing and/or economic one. Someone in the marketing department probably said "57 (or 31) is an odd number (not just the fact that it is not even, but that it is relatively unusual or unfamiliar). If it will work with a more approachable number, say a multiple of 5, that would look better on the packaging and we can even save a few cents per unit."

  • @jalsing

    @jalsing

    3 жыл бұрын

    Maybe it's just to save money and waste on printing. They might fit nicely 5 across on the stock before they're cut. Same with the smaller set both are multiples of 5....

  • @atomic3691
    @atomic36913 жыл бұрын

    "Negative six players?" I don't know why, but I couldn't stop laughing.

  • @WesYarber

    @WesYarber

    3 жыл бұрын

    ‘Twas a good one

  • @pyglik2296

    @pyglik2296

    3 жыл бұрын

    We should switch to the correct notation [2, 8] ∩ ℤ.

  • @kirkanos771

    @kirkanos771

    3 жыл бұрын

    I didnt get that joke either.

  • @ssnoyes

    @ssnoyes

    3 жыл бұрын

    @@kirkanos771 It's for "2-8" players, which you are supposed to read as "2 through 8" but Matt has interpreted as "2 minus 8".

  • @davidgould9431

    @davidgould9431

    3 жыл бұрын

    Similar(ish): I finished a jigsaw in 18 months - I was really pleased because it said "2 to 4 years" on the box.

  • @Verlisify
    @Verlisify2 жыл бұрын

    So find century old math columns and make card games out of them Interesting business venture

  • @graemed8792
    @graemed87923 жыл бұрын

    at 3:34 the "slick" genuinly gave me a good chuckle

  • @mymoomin0952
    @mymoomin09523 жыл бұрын

    "I'm not sure if that's genius or lazy" The soul of mathematics right there

  • @dragoncurveenthusiast

    @dragoncurveenthusiast

    3 жыл бұрын

    absolutely! nicely spotted

  • @ChazCharlie1

    @ChazCharlie1

    3 жыл бұрын

    I was going to say engineering

  • @LadyPelikan

    @LadyPelikan

    2 жыл бұрын

    Ooo. Deep.

  • @pseudopod
    @pseudopod3 жыл бұрын

    I like how Matt put the clown mathematically as far away as possible, but it was also the physically closest set of cards

  • @lozzaaa15

    @lozzaaa15

    3 жыл бұрын

    goes to show that he believes in maths more than he believes in physics

  • @ziwuri

    @ziwuri

    2 жыл бұрын

    @@lozzaaa15 this... actually almost makes sense, in a weird way.

  • @ahobby

    @ahobby

    2 жыл бұрын

    Haven't seen it yet, but I'm guessing he's put it away in manhattan distance or chessboard distance or quasi-euclidean distance, something of the sorts, rather than straight up euclidean distance :P

  • @eboyarski
    @eboyarski3 жыл бұрын

    In 2015, I helped design a similar card game with 73 symbols, 9 on each card, and 73 cards. So, an order of 8=2^3. I used Sage to generate the solution. I never quite understood the math, so I appreciate this video!

  • @reneejones6330
    @reneejones63302 жыл бұрын

    "Spot the happy little house" is MY kind of matching game. Love it!

  • @matheuscastello6554
    @matheuscastello65543 жыл бұрын

    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

  • @miriamrosemary9110

    @miriamrosemary9110

    3 жыл бұрын

    Totally

  • @jounik
    @jounik3 жыл бұрын

    Next in line: Monomismatch Myriad where you have ~10k cards, each with ~100 symbols, the challenge for each pair being to find the one symbol that is *not* on the other card of the pair.

  • @danielyuan9862

    @danielyuan9862

    3 жыл бұрын

    that's just n cards with n-1 symbols each such that you take any n-1 symbols of n total symbols.

  • @adampayton4695
    @adampayton46953 жыл бұрын

    There's also a second pair! An circle with an arrow inside! However they are different colors so maybe it's also like the "catch the match game"?

  • @annekay281

    @annekay281

    3 жыл бұрын

    I found the same pair and if color variation was an acceptable option you would not need that many unique symbols or cards that large.

  • @IllidanS4
    @IllidanS42 жыл бұрын

    I remember that when learning about projective geometry, the lecturer actually brought this game to the lesson, I think.

  • @n8r8rutube
    @n8r8rutube3 жыл бұрын

    You really Parker Squared that print job :P

  • @Koisheep
    @Koisheep3 жыл бұрын

    It's so refreshing to find a maths channel that keeps coming up with new topics you didn't know about despite being a phd student lol

  • @SimonBuchanNz

    @SimonBuchanNz

    3 жыл бұрын

    It's so refreshing to find a maths channel that came up with a subject I *did* already know about! (projective geometry being a big thing in 3d rendering) If not something I would ever think to try to apply in this context.

  • @hugofontes5708

    @hugofontes5708

    3 жыл бұрын

    @Hopeful Interpretation doesn't take a lot of genius to at least know about trendy or popular topics in your own field that are covered by KZread channels for views and popularizing academics, specially when the channel actually surprises you on the regular. Or does it?

  • @andyland00
    @andyland003 жыл бұрын

    Great video! As an engineering student, however, my inner manufacturer is pained by the fact that you chose to make your myriad out of pentagons rather than hexagons... hopefully there was some printing size limit that made the difference in wastage between the two shapes negligible?

  • @mgarratt101

    @mgarratt101

    2 жыл бұрын

    It makes zero difference, obviously you're a beginner engineering student, you'll get there one day

  • @paulbockmann8402

    @paulbockmann8402

    2 жыл бұрын

    @@mgarratt101 seems like you’re the beginner, only triangles, squares and hexagons can tile a plane without any overlap or gaps. You’ll get there one day ;)

  • @iteragami5078

    @iteragami5078

    2 жыл бұрын

    Good question. It would depend on the size of the polygon compared to the roll of paper to be printed on. Cause while regular hexagons do tile the plane perfectly, they leave jagged edges at the border, so you would compare wastage to densest pentagon packing known.

  • @SlashCrash_Studios

    @SlashCrash_Studios

    Жыл бұрын

    He's Matt Parker, Pentagons are just cooler shapes

  • @AidanRahder

    @AidanRahder

    Жыл бұрын

    @@SlashCrash_Studios Hexagons are the bestagons.

  • @breberky
    @breberky Жыл бұрын

    After spending many weeks trying to code the Dobble generating algorithm (brute force with a lot of optimization tricks, still running for long hours), the existence of the cyclic difference set literally blew my mind. Now the job is done in a second. You have saved my day! Thank you!

  • @anushrao882
    @anushrao8823 жыл бұрын

    That negative six got me laughing way more than it should have.

  • @luiscarlosqg

    @luiscarlosqg

    3 жыл бұрын

    Yeah, that was funny.

  • @dahemac
    @dahemac3 жыл бұрын

    I love that you have probably persuaded a renowned solar physicist to periodically throw game packages at, or to, or past you. 😁

  • @benjaminsmith3625

    @benjaminsmith3625

    3 жыл бұрын

    Physicists are big fans of particle accelerators after all!

  • @wellshit9489

    @wellshit9489

    3 жыл бұрын

    They need to test how the velocity, time and mass affect the results obviously.

  • @vigilantcosmicpenguin8721

    @vigilantcosmicpenguin8721

    3 жыл бұрын

    I prefer believing they actually teleported on screen on their own.

  • @ChristianBehnke
    @ChristianBehnke Жыл бұрын

    "Spot the happy little house" is my favourite new game! 😂

  • @Hjerta92
    @Hjerta923 жыл бұрын

    When we were playing Dobble last summer we started wondering about the mathematics behind it, and how many cards you could make with x number of symbols on each card. Our formula was x*x-(x-1), so 8*8-7 in the case of Dobble, although we couldn't have explained exactly how it worked.

  • @afonsoferreira5171
    @afonsoferreira51713 жыл бұрын

    The Parker Dobble edit: just refreshed the comments, good to know everyone thought the same

  • @zozzy4630

    @zozzy4630

    3 жыл бұрын

    Parker Pentagon!

  • @rossradtke

    @rossradtke

    3 жыл бұрын

    I was gonna say its an upgrade from the Parker Square... ..."Now with FIVE sides

  • @a-lien
    @a-lien3 жыл бұрын

    Your mistake getting your cards printed made me really happy, not at the expense of you messing up but at the beauty of how well it ties into what we had just learned and how easy it was to make such a grave mistake

  • @PanduPoluan
    @PanduPoluan2 жыл бұрын

    I totally lost it looking at Steve's face while he tried to find the match... then again when he realized it was all "smiley house" 🤣🤣🤣

  • @AaronZull
    @AaronZull2 жыл бұрын

    I have been waiting for this exact KZreadr to make this exact video for several years now! Thank you!

  • @CBWP
    @CBWP3 жыл бұрын

    "You can trick young people into becoming engineers." - Matt Parker

  • @toughnerd
    @toughnerd3 жыл бұрын

    I never thought a pentagon could be classified as a square before... But those pentagons are the parker's square of monomatching games.

  • @Jordan-zk2wd

    @Jordan-zk2wd

    3 жыл бұрын

    About that... kzread.info/dash/bejne/oGt7u7ueos-3h9Y.html : P

  • @hapticflapjack
    @hapticflapjack3 жыл бұрын

    The thrower should get a credit. (And the filming location looks lovely too.)

  • @NoomiSense
    @NoomiSense3 жыл бұрын

    haha, this was amazing! You should challenge Steve to discover the most efficient way of spotting the symbol on the Myriad cards. Would a sorting methodology work best here? like a 'shell-spot' or a 'quick-spot'? Or is our brain more attuned to focusing on a single colour at the time? I went through so many spotting-tactics and I couldn't even see the happy house. When I realised that the this game was so hard that the YT algorithm couldn't even spot the *leaf* I decided to un-pause the video.

  • @MisterNohbdy
    @MisterNohbdy3 жыл бұрын

    *points to box* "These guys sponsored me! They're great!" *promptly tosses box onto floor*

  • @DannyGottawa
    @DannyGottawa3 жыл бұрын

    Paraphrased Matt: 'Just make the two extra cards yourself.' Couldn't I just make them all? Nervous Matt: Shhh

  • @PauxloE

    @PauxloE

    3 жыл бұрын

    There are dobble/spot-it generators on the internet. Upload a set of icons (use your own ones so there are no copyright issues), get the cards, print them. My wife made some with fruits and vegetables.

  • @samp-w7439
    @samp-w74393 жыл бұрын

    I watched this a while back, wanted to generate my own dobble (for reasons which I won't go in to). I recall Matt saying cyclic difference sets are hard to generate, so I decided I would try to write some code for it. It's a simple recursive backtracking algorithm, not much fanciness. Wrote it in python and here it is: def check(nums, target): differences = 0 ind_diffs = set() mod = target * target - target + 1 for n1 in nums: for n2 in nums: diff = n1 - n2 diff = (diff + mod) % mod if diff: differences += 1 ind_diffs.add(diff) return len(ind_diffs) == differences def generate(target, current=None): current = current or [0] mod = target * target - target + 1 options = range(current[-1] + 1, mod) if check(current, target): if len(current) == target: return current for option in options: res = generate(target, current + [option]) if res: return res print(generate(8)) The code is surprisingly fast for small sizes of difference sets, but, I tried generating the length-102 set that you would need to generate Monomatch: Myriad, and it still hasn't finished running (over an hour). This makes sense, as recursive backtracking scales quite poorly (I think O(n!)), so I'm not surprised. In any case, I just wanted to share my findings. Cheers!

  • @dfgaJK
    @dfgaJK3 жыл бұрын

    What made finding the happy little house, it took me about 2min, is that the contrast/saturation is sightly diffrent. (or at least it steamed to be in the image of you holding them up.)

  • @michaeledinger8256
    @michaeledinger82563 жыл бұрын

    From the producers of Parkers Square: Parkers Pentagon. Laugh so hard that I cried

  • @Iwasneverevenhere
    @Iwasneverevenhere3 жыл бұрын

    Regarding the number cards, German math KZreadr Dorfuchs also made a video on this game. In it, he contacted the company to ask about the number of cards, and they answered that it simply had to do with printing, although I don't remember the details.

  • @Ulkomaalainen

    @Ulkomaalainen

    3 жыл бұрын

    The game company said the printers only could do 55 (well, or 110 with 53 thrown out). Why that is wasn't solved but it was also the suggestion that it is was Poker sets (or, more broadly, the standard 52 cards plus three anything - joker cards for example).

  • @ultimatedude5686

    @ultimatedude5686

    3 жыл бұрын

    @@Ulkomaalainen My guess it that it was the 52 cards, two jokers, and that extra card they always include for branding

  • @calebj5852
    @calebj58523 жыл бұрын

    I wondered about this when my family played over the holidays this past year! Thanks for the explanation!

  • @cl3m3n7
    @cl3m3n73 жыл бұрын

    This was an amazing video ! Great cinematography, really fun and the math is incredible !

  • @Xanthaar
    @Xanthaar3 жыл бұрын

    Outdone the Parker square with this one. I'm crying with laughter at the happy little houses on all the cards :)

  • @bluecat2991

    @bluecat2991

    3 жыл бұрын

    So am I. It's so Matt.

  • @johncavanaugh3960

    @johncavanaugh3960

    3 жыл бұрын

    Lol that's a bold statement: "outdone the parker square"

  • @RubenCeuppensOfficial
    @RubenCeuppensOfficial3 жыл бұрын

    Steve's face at the end when he realises, is hilarious.

  • @nitehawk86

    @nitehawk86

    3 жыл бұрын

    The face of someone that isn't sure if they are being trolled.

  • @jordanrivera467
    @jordanrivera467 Жыл бұрын

    Funnily enough, I first played this game during a free day in math class, truly coming full circle with this video

  • @myrusEW
    @myrusEW9 ай бұрын

    This sounds like an EXCELLENT programming challenge.

  • @y.h.w.h.
    @y.h.w.h.3 жыл бұрын

    "I've become quite good at this..." Oh no. Something went wrong.

  • @TacoMaster3211
    @TacoMaster32113 жыл бұрын

    The Happy Little House Incident must make it into Humble Pi 2, or maybe Humble Tau if you wish.

  • @thegreatsalad

    @thegreatsalad

    3 жыл бұрын

    Humble Tau, love it haha

  • @frederf3227

    @frederf3227

    3 жыл бұрын

    Im holding out for for Humble 540 degrees.

  • @vigilantcosmicpenguin8721

    @vigilantcosmicpenguin8721

    3 жыл бұрын

    Something about that book will come full circle.

  • @Calciyum88
    @Calciyum883 ай бұрын

    Thank you!!! That was exactly what I was looking for!! Thanks so much!!!

  • @theplanbee79
    @theplanbee79 Жыл бұрын

    I've wondered this question many times while playing Spot It. What a timely video. Thanks!

  • @DAveShillito
    @DAveShillito3 жыл бұрын

    Literally everybody watched this video and looked to the comments to see if they would be the first to post "Parker Dobble" :D

  • @ryjtse

    @ryjtse

    3 жыл бұрын

    Oh now that is delightful.

  • @Nosirrbro

    @Nosirrbro

    3 жыл бұрын

    Parker Match!

  • @esotericVideos

    @esotericVideos

    3 жыл бұрын

    I think Parker pentagon is more apt. It suggests that with time Matt will find a way to embarrass himself with all regular polygons.

  • @better.better

    @better.better

    3 жыл бұрын

    Parker Plane... Parker Dobble is just ridiculous! personally I feel that the concept of a Parker plane being an infinite sequence of happy houses is very comforting

  • 3 жыл бұрын

    Nope, I went on to check who else found the smiling house. EDIT: ...and I unpaused the video and learned the truth :D :D

  • @jubnx2781
    @jubnx27813 жыл бұрын

    I literally was wondering about this 2 years ago and still now today because we played this at the lake, I now know. Thx

  • @rangeldino2633
    @rangeldino26333 жыл бұрын

    22:25 Took me about 4 Minutes to spot the smiling house. That would be a long game of Dobble.

  • @captainstroon1555
    @captainstroon15553 жыл бұрын

    You just earned a sub by printing out 10302 unique symbols and 101 happy little houses.

  • @somefreshbread
    @somefreshbread3 жыл бұрын

    "Friends of mine who have procreated" Yep. This is a math channel.

  • @Ulkomaalainen

    @Ulkomaalainen

    3 жыл бұрын

    Possible. Ehm, what is this "friends of mine" thing?

  • @jaymoney5090
    @jaymoney50903 жыл бұрын

    28:25 "They're all smiley house" Always have been

  • @user-dn5bx2iu3e
    @user-dn5bx2iu3e2 жыл бұрын

    Steves joy while playing the game, having a little snack, taking a sip. moments later; "what? smiley house, smiley house?"

  • @DavidRPascucci
    @DavidRPascucci10 ай бұрын

    I'm 8 minutes into the video and I already went to upvote it three times. You are so consistently funny and entertaining, really enjoying watching through your old videos!

  • @HeVi7
    @HeVi73 жыл бұрын

    That's a Parker Square of a game you've printed there 🤔

  • @thekinglydragon
    @thekinglydragon3 жыл бұрын

    I will be using that -6 players joke for the rest of my life. I have no idea how I've never heard it before. Thank you for enlightening me

  • @dsblocks
    @dsblocks3 жыл бұрын

    you: double dobble me, an intellectual: quadrobble

  • @dcornect53
    @dcornect53 Жыл бұрын

    It started with "what is the dobble maths?" and became "Here is our Frankenstein dobble." with an implied maniacal laugh.

  • @snipperjoey1151
    @snipperjoey11513 жыл бұрын

    Honestly I'm proud I spotted the little house in about a minute.

  • @miriamrosemary9110

    @miriamrosemary9110

    3 жыл бұрын

    I looked for quite a while and couldn't find it. Good job!

  • 3 жыл бұрын

    Likewise, I found it in a minute or two. But it could have taken a lot longer, it was just luck. EDIT: ...and I unpaused the video and learned the truth :D :D

  • @vigilantcosmicpenguin8721

    @vigilantcosmicpenguin8721

    3 жыл бұрын

    I think the trick was to search through each color.

  • @reformCopyright
    @reformCopyright3 жыл бұрын

    "Let n be an integer!" And the crowd goes wild!

  • @Kenjuudo
    @Kenjuudo3 жыл бұрын

    This video was totally hilarious! I seldomly laugh out loud when watching videos, but this one did it. Thanks Matt/Math & Steve! Finally earned yourself my subscription!

  • @jinghengchia2201
    @jinghengchia220111 ай бұрын

    lol the "spot the atom myriad" has true Parker Square energy 🤣

  • @anarchyseeds4406
    @anarchyseeds44063 жыл бұрын

    Wow that is hilarious Matt. I was amazed how fast you matched the happy little house but that outcome is truly comedic.

  • @richardwithanarr
    @richardwithanarr3 жыл бұрын

    I like how Matt frames himself sitting in front of the circle artwork behind him. Santino Parker, patron de numeros calculadores

  • @spencerbruce
    @spencerbruce3 жыл бұрын

    I was just playing this game with some friends and we were working through the math on how to make this game! Thanks for the wonderful video :)

  • @marcelluswallace6240
    @marcelluswallace62403 жыл бұрын

    Monomatch Myriad: The Parker Square Edition a.k.a. Spot the happy little house. Game of the year.

  • @ComradeSpookfessor

    @ComradeSpookfessor

    3 жыл бұрын

    Parker Pentagon

  • @Riley_7237
    @Riley_72373 жыл бұрын

    Omg. Steve’s reaction XD

  • @garrettthompson3286
    @garrettthompson32863 жыл бұрын

    5:55 I was fully ready for a surprise diagonalization argument like Cantor's

  • @F_L_U_X
    @F_L_U_X3 жыл бұрын

    6:53 Imagine a mechanical lock needing that many pins to align to unlock.

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