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Monomatch Myriad: help me verify it works (Patreon)

Published:
2021-04-30 00:43:01
Edited:
2021-05-07 19:48:58
Imported:
2026-06

Content

UPDATE: All the emails with links to your three cards have been sent out. Some people had the great idea to also compare the cards they were emailed to the ones in the video!

In my video about Dobble (aka Spot It) I made a set of 10,303 cards and each card has 102 symbols. In theory, any pair of these cards will have exactly one symbol in common.

I'm going to post three unique such cards to every patreon supporter at the start of May for you to verify this works. (Please do not distribute these cards to anyone else!) You can use the comments on this post to confirm you could find the three matches.

And do keep an eye out for the happy little house!

Files

How does Dobble (Spot It) work?

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

Comments

Andrea Kohlmann

I don't think you have my postal address because I pledge on a low tier without physical rewards

Matt Parker

It’s ok: I’m only emailing these out. One day I’ll do a mass post-out but today is not that day.

Matt Parker

That’s interesting! I like the idea of it being a single picture instead of loads of small pictures. I wonder if they use a projective plane like Dobble or a complete graph like Catch the Match (or something else!).

Bruce Garner

Nice ... so with 10,303 unique images every patreon supporter can get a unique symbol. 😉

Vincent Zalzal

As always, I enjoyed your video! Even more so this time, since you reminded me of a summer I spent doing research/coding in an operational research lab. I was working on Golomb rulers, and I have to say, they look eerily similar to cyclic difference sets, except... they are not cyclic. Finding those (optimal) rulers is NP-hard... at the time (around 2002), I think I was able to find a ruler with probably only 18 or 19 marks on it. But still, fun stuff! Also, kudos for that Escher art behind you :)

Miguel Escalante Milke

I've never supported anyone on Patreon, but as soon as I heard I could get a set (of 3) of these cards I got into my computer and subscribed immediately. I'm gonna print them and display them at my living room just to confuse anyone who enters. Keep going with the amazing content :D

Sarah N (@no_genius)

Should we post the symbols to also verify we’re not all getting the same 3 cards?

Simon Donkers

The perfect verification method when you meet another Patreon backer to check their loyalty. We should carry one card with us at all times.

SkaveRat

next project: use the avatars of patreons :D

Alexander Edraki

I just joined today, hopefully it is not too late.

Antje Dros

Woww, I just watched the video. Better clear my schedule for checking those big boys 😂

Patrick Chambers

So good! I'll bet YT doesn't calculate this but "average view time" should be like 40 mins for this <30 min video because of the pausing and searching for that happy little house!

Simone Emiliano Matteo Palla

Too bad you can't share all the cards, or maybe that's a good thing because this means I will not have to fight my own instinct to print all of them :-) I'm curious about the legal/licensing reasons, I'm always interested in the intricacies of copyright/intellectual property.

Me

Well, there's a good reason to become a patreon.

Przemek Zdunek

Just watched it with my 9 yo daughter. We loved it. First thing tomorrow we're checking our two missing cards in dobble. Great work Matt. As always.

Matt Parker

The process of working out a projective plane layout is really good fun. Like a cross between Dobble and a sudoku. Involves a BUNCH of match spotting so would be a fun team effort. (Hint: start by choosing your vanishing point symbol.)

Matt Parker

I’m curious as well! But I decided to stop asking questions as it could only get worse.

Flip Lijnzaad

I'd been thinking about becoming a patron and this is what encouraged me to finally do it! Looking forward to receiving the cards in my inbox :-)

Matt Parker

Welcome aboard! Thanks for the support. And just so you know: there is no shame in getting the cards and then cancelling your subscription. That is totally within the rules!

Przemek Zdunek

thanks for hint. BTW, I watched Destin first. sorry!

Merlin Magnus

The happy little house. AKA, the Parker house.

Matt Parker

Thanks so much! With more support I can be even more ambitious with my video ideas.

Matt Parker

It’s ok, I always wait an extra day or so just to be safe. I don’t want anyone accidentally missing out.

Matt Parker

Yep. You’re going to need to hold all your calls.

Matt Parker

And after Destin specifically said otherwise!

Matt Parker

Welcome aboard! I’m going to send them out early next week.

SonOfSofaman

This is going to be fun. Thanks for involving us!

Wilf Mountfield

Couldn't resist the opportunity. Damn you Matt. Take my money.

Matt Parker

3 × 102 good reasons (minus 3 duplicates).

Matt Parker

I will accept "the Happy Little Parker House".

William Handrigan

Not gonna lie, I paused for a good 5-7 minutes and found the house, and felt so elated when I did. Then resumed the video and he 'finds' it in a few seconds and felt absolutely stunned.

Frederik Meynen

So everyone whose name starts with an A is getting the happy little house, right? :-D

AbbaZ

Excited to play 3 card Monomatch Myriad with my family!

Frans Wilbrink

Those cards will be a nice birthday present for me :) I was introduced to playing dobble only the other week!

Roberto Casula

Oh, go on then, sign me up. Had to switch currency back to USD though. Since Patreon recently started defaulting to local currency, it's made many a content creator's hilarious tier name puns break. It really shouldn't be allowed! Thanks for all the great content!

Oliver Prosperi

Here I am, ready for proofing at a reverse rate of 1 dollar per card :)

Topottsel

Very cool video! Theres a game called Ghost Blitz (Geistes Blitz in its native german) which works a bit differently. You have 5 objects in the middle (Grey mouse, White ghost, Red chair, Blue book and Green bottle) Then you take it in turns to turn over a card from a stack that have a 'scene' on it. It with have either: One of the objects (colour and shape) from the middle or One of the two attributes from 4 of the 5 objects (colour or the shape) and one object will not appear in shape or colour. First player to identify and grab the object thats matching, or odd one out, claims the card. Player with the most cards at the end wins. Here's a minute long video that explains it visually. https://www.youtube.com/watch?v=sLiyeNpOXKQ I have wondered as I played it just how many combinations of card you could have as the deck itself has duplicates, so I wonder if its quite a small number and they have to have them, or if they haven't done the maths and just wanted to make a good sized deck after they drew as many scene combinations as they could think of.

William Young

Am I too late? I will use the timezone defence as it's still the 30th somewhere

Matt Parker

You’re fine! I’m going to leave a day grace period to make sure no one gets unfairly cut off.

Jacob Molea

I can assure you that it is April 30 in New York right now!!!

CrimsonBloodedRuby

ended up becoming a patron but i somehow skipped over the shipping details, I'm not sure if there's a way to re-enter then unless i resubscribe

Callum House

This video was extra funny for me as my surname is House. I was a very happy house at the end of it. I hope I get a pair of happy little houses. And this seemed like as good an excuse as any to throw some money at my favourite mathematician. Thanks 👍

Gadg3t

They are going to be emailed to you

Oleh Shvets

I was thinking about thanking you somehow since I’ve watched your lecture about 4th dimension. The Myriad one convinced my to register on Patreon and sub for you! Btw, is there any possibility to buy somewhere klein (bottle) hat like yours?

Gadg3t

Not sure what service you used but if you need to do something like this again check out thenounproject.com for symbols and their licensing seems cheap and it has an api!

Patrick Chambers

Only if they can show you an ad while paused XD

Alexander Edraki

Has he sent them out? Cause i haven't gotten mine yet.

AbbaZ

Same. He said early May. I'm sure Matt will update this post when there all sent.

Alexander Edraki

Oh ok, just wanted to make sure I wasn't the only person who didn't get them.

Timur Sultanov

patreon takes up to a week to confirm payments, so Matt probably still waits for list of patrons

Kuba

Gadg3t

Don't think so. It was mentioned above that patreon might take a week to process and confirm payments so Matt might be waiting on that.

Peter Hozák

uff, rotating the images was pure evil.. but I can confirm my 3 pairs of images each contain at least 1 image in common (didn't stay check long enough to rule out more than 1) so no one else should see the eye, the parrot and the slider that are exactly the same as mine?

Beninjamin

My 3 cards all have the same image in common... Did check for others, but found nothing so far!

Daniel Busse

I just received mine a couple of minutes ago, so i bet he is in the process of sending them out now

Ruud L

Checked with the whole family and found the matching symbols ! Took us only 20 minutes :)

David Garrison

Mine seem to work. Didn't exhaustively check that there's ONLY one match per pair.

Antoine LANIRAY

I got my 3 symbols (1 for each pair !). Question : what's the best strategy to find the 3 symbols the fastest ?

Karim Maassen

I got mine as well and actually found the first pair. I went from the outer ring, clockwise on one card and for each symbol tried to find the matching symbol on the other card. Brute forced it. EDIT - found the second pair. One more pair left! EDIT - And the last one found.

Matt Robinson

All three of mine worked. Slight confusion with two chevrons of only sliiiiightly different shades and thicknesses... But still three matches apart from the confusion

Christian Godde

No happy little house :( But can confirm 3 matching icons

Jörn Räuber

Yes, I had 3 matches! : D plane (greyish bue) pseudo electric flowchart symbol with 2 °, 1 + and 1 arrow (dark green) happy medicine jar with smiley (dark red/magenta)

Daniel Busse

Like, 1 symbol in all 3? So far, in mine I can find 1 symbol in 2 of them, but not in the third

Georgios Papoutsis

I can also confirm there is at least one image common in each of my 3 pairs, but also didn't check enough to exclude there being more than one (though I doubt it).

John L

Found all three were a couple of very similar arrows (different colours though) and two power symbols of different thickness thrown in to confuse me a little}

Lex

Last pair was the hardest to find but I did find all three! No happy little house for me either.

Jörn Räuber

Brute force here too! Going left to right, row by row, though...

Frank Gevaerts

My three cards have at least one set of images in common for each pair, but I haven't checked if it's *only* one pair. I trust the mathematics behind the system though :) (bag of money, big key, green thing that I can't identify)

Daniel Busse

So, should there be 1 pair of matching symbols per 2 cards (so 1 pair for cards 1 & 2 and 1 for cards 2 & 3), or 1 symbol among all three cards?

Karim Maassen

@Matt Can we submit our 'solutions' somewhere?

Jörn Räuber

should be 1 exact match with all your 3 pair combinations

Torgy

You're looking for 3 pairs of symbols. 1 pair for Cards 1 and 2. Another for cards 2 and 3 and lastly a third for cards 1 and 3. Happy Hunting!

Jörn Räuber

Now, let's start trading! Anyone has the light violet cloud with 3 symbolized electric connectors (middle straight, left and right 90° angled)? : D

Beninjamin

yeah. Like how all the cards in his vid had the happy house. That should not be the norm, though. You should have 3 distinct matching pairs. (1) card A & B, (2) card B & C, (3) card A & C (saw your question below)

Beninjamin

I found mine by looking for only a specific color at a time! limited the options from the 100 images down to about 10 images per color.

Garnet Butcher

Found all three! Loads of family fun 😂

Bryn

Mine are correct. I started at the bottom of card 1 and found the match for 1 and 2. Then I couldn't find the one for 1 and 3. So I started again at the bottom of 3. I found the one for 2 and 3 half way through. Then I thought 1 and 3 may be broken but the third symbol from the end matched 1 and 3.

Beninjamin

reminder that you should be able to compare your cards to the ones he shows on his vid for more matching fun!

David Straw

Red paper outline, blue group of people with a plus, dark yellow hollow play/pause

Nick Poulos

All have one image in common! (Cloud with bit of graph below it, check mark speech bubble, and interlocked wedding rings).

Daniel Busse

Check, after looking for half an hour, I found all three!

Andrew Jackson

It's taken me 20 minutes just to find 1 match in the first 2 cards.

Andy Clarke

Yup mine look good. Took a bit of searching but found the pairs

Frank Gevaerts

They're not exactly the same, but Cliff Stoll sells klein bottle hats on kleinbottle.com (as well as all other sorts of klein bottle, of course)

Ross Freeman

8106, 775, 4338 all work amongst themselves. The final match took me 20 minutes including time covering up icons I was sure it wasn't in MS Paint!

Alison Hansel

Found matches on mine! Brown file folder with arrow pointing out, blue circle with key, and green surprise face. Thanks for the fun!

Rok Pušnik

found all matching pairs: 05706 and 03978's (pink parking sign), 03978 and 09124's (brownish 3 arrows from coordinate center) 09124 and 05706's (dark blue symbol with a clock and three "chairs"?)

Paddy Kenworthy

I won the race! Managed to find all 3 matches before anyone else in the house. 1402, 926, 7568 all have only one connection between each 👍

Amanda Jonsson

Found the pairs on my set of cards (tablet with blank screen, monitor with C, and sphere with lines).

Marcel Bro

It took me about 6 minutes to find the first two and then 6 minutes to find the last one. I spent 4 minutes memorizing pictures of the first card, then it was pretty easy to find matches with the other two by scanning through them. The matches just hit my eye. To find a match on the other two I used a different technique. I was flicking back and forth and focused on a different color every time. It took a little longer and I almost thought I'd have to use a different technique but the matching image was kinda pale and I was leaving these colors to the end, so that was why. Good fun!

Patrick Frömel

Found the pairs(blue person with a plus, blue dinosaur head, pink circle)

Brian Purcell

My three work. Found lips, candles, and some symbol that roughly looks like "8|".

Philipp Risius

My wife found the pairs in a surprising amount of time. Can't have been more than like 3 minutes for each pair.

Gilad Teller

I can confirm exactly 1 match for each pair of cards: Card with a heart, person with headphones and lightning through his head, and a pile of stuff.

Daniel Ahlström

I found the matching pairs between 6530, 3730 and 4884. I'm pretty sure there are no other pairs either. It took a while for the first one but then it feels like I memorized those and the two other matches was easier.

Cooper Walter

Can confirm 069978, 09768, and 03071. 06998 <-> 09768 = lightpink pizza cutter 06998 <-> 03071 = brown dress 09768 <-> 03071 = medium turquoise four-legged with a camera icon in them middle

DrDelvan

Cliff is great! His order process is delightful too, I was asked to specify how many dimensions I live in when ordering my klein bottle :)

Rowan R-W

3837 - 5502, muddy pink leaves 3837 - 5670, dark blue flag with star and 4 dots 5670 - 5502, dark peach coloured double layered star All three worked, used paint to blot out the ones I knew didnt match. took me about 40 mins to do all three, lots of fun!

Beau Skinner

Found my pairs, and I'm pretty sure there aren't any more but I have only so much time to spend on gaining confidence. I wonder if these could be fairly easily regenerated as a single row, sorted in some global order?

Beninjamin

Another brown file folder! All 3 of my cards had that single one in common.

Be-Ankh-Ah

8164 <-> 9698 = orange tube TV with antenna 8164 <-> 9205 = pink lorry with clock 9698 <-> 9205 = green computer cable I agree, it took WAY longer than I would have expected to check these! It seemed like I was finding a new icon every time I scanned a card.

Alex

718-6837, pink pair of nuts and bolts 718-6272, orange canadian passport 6272-6837, blue wreath Did not find any duplicates with ~30 minutes total spent looking across all 3 pairs.

J.R. Hyde

03687 and 05106 both have a green circle with an outlined head and shoulders, and a row of five dots underneath it 03687 and 08323 both have this pinkish-red solid-colored thing that looks from one angle kind of like a barn with some rectangles sticking up out of the top of it, I'm not sure what it's supposed to be. 05106 and 08323 both have a solid blue spiky gear with a white ring

Gianna J

I found the pair for 05568 and 05946, 4 brown squares. I haven't found a symbol on either of them that matches 10234. There probably is one, but I just can't see it 😅

Robert Watkins

First, I can't believe I've sponsored homework. :). But I found 08949-07272 (gear with ); 09107-07272 (grimacing star); 09107-08949 (thing with two humps and seven circles).

Patrick Woitala

Just checking with those of you who found a pair: did you also check that there wasn't more than exactly one pair each? From the comments it looks like this isn't always the case. We'll need to rule out every symbol and end up with only one on each card for each pair. I'm trying the GIMP-find-areas-of-similar-colour method, but it's slow going...

tmuguet

09723-00831: #b395f8 map 08642-00831: #0f49d2 little silhouette of a man (Scaramouche, Scaramouche) 08642-09723: #f3aa72 outlined silhouette of a man (will you do the Fandango?) over a hoop Can't say if these are the only pairs, my brain has melt down.

DrDelvan

Checked mine pretty exhaustively by separating each image into multiple layers by thresholding so I was comparing smaller sets of images at a time, found exactly one match between each pair. 1543->1418 bookmark, 1543->4245 calculator, 1418->4245 railroad.

Tim Vreeburg

09480 - 05162: brown P with four dots inside the circle of the P 05162 - 06021: green arrow in square display 06021 - 09480: pink nurse Very nice, but I still need to check for errors obviously.

Bret Scofield

09886 and 04225 have a darker blue, uh, series of lines in common. Kind of like paper clip shapeish. Almost in the exact same spot on each card too. I'll have to give the others some more time...

K&R Nightingale

01945 - 07024: purple dentist chair 01945 - 08324: purple upload to the cloud 07024 - 08324: red hot/cold thermometer pair So they have at least one match. Need to be more methodical to check for potential other matches.

Loren Thomas

301 - 1021= solid purple/pink sofa 301 - 1390= green muffin tin 1021 - 1390= pink file folder

Klaus

00597 - 00815 - 08168 = pink vice. I did not find any other pairs.

Christopher Calzonetti

02145 - 06082, light blue bell with a bow on top. 02145 - 06915, reddish-brown file folder with some symbol on it 06082 - 06915, yellow-brown USB cable with a globe in the middle

Daniel Powell

4972 <=> 5655: red typewriter/commodore 64 4972 <=> 7588: pink square networking/direct-report tree icon 5655 <=> 7588: red train map marker

C.J. Smith

07619-02409: green i (or !), verified there are no others 07619-00681: peach-ish box with shiny arrow pointing in 02409-00681: magenta squared purse

Sebastian Franz

03997-06274 blue square 03997-06333 teal coffee mug 06333-06274 lilac radio or camera it took me 15 minutes to find the first pair, my wife 10 sec to find the second one and us half an hour to find the last one. We did not stumble across any other pair. nice game :-)

Patrick Woitala

02792-04488 green screen symbol (rectangle with two smaller rectangles) 02792-08664 bright orange square with thick lines and feathered corners 04488-08664 orange squarish thingy with a circle with a dollar sign inside Have ruled out further pairs, so it's definitely only one pair each.

Hari Krishnan

This was fun! My cave man eyes found: 4020 - 2505: Cyan dialogue box with warning icon 2505 - 2610: Purple gear. There are actually two similar purple gears(see 2610) the matching one's inner circle is smaller. 2610 - 4020: Turquoise life saver swimming tube thing. Not sure if these are the only match, but I trust maths. And Matt.

Tim Sorbera

00495 - 10117 - orange rectangle with traingles at short edges 01204 - 00495 - green movie camera 01204 - 10117 - pale green circle with clipboard, pencil, and lightbulb I didn't check for other errors, that sounds like way too much work. I just checked that I could find a matching symbol, and it still took around 20 difficult minutes.

Hari Krishnan

I haven't check for duplicates. Finding one was hard enough :p. Doing it programmatically seems the right way to go!

Hari Krishnan

Wow. Busting out the hex values. Impressive!

HardGay

07667-07663 Orange cloud with person in circle ([2780,1760], [2280,3100]) 07667-02225 Pink card with Cross on 3/4 of it and 4 dots on 1/4 of it ([2170,2560],[1740,720]) 07663-02225 Light blue smartphone with card over it ([2300,1780],[1770,960] It was oddly entertaining to do, and somewhat calming after a hectic day

Mark Spitzig

02728 - 09793 --> Teal Cheeseburger 09793 - 00568 --> Green Credit Card 00568 - 02728 --> Purple Share Calendar

Beninjamin

06270 - 00642 - 03456 all had the brown file folder I also compared them to the cards from the vid and there I got a unique symbol for each pair.

Thomas Gerritsen

Thank you, I just had a friend over for dinner who also likes maths so we did a quick best of 3 game and it worked! 02684-08776 pink printer 08776-09332 green bottle 09332-02684 red shape (hill/whale/nose)

Alex Mollberg

I've found the common icons but not verified that there are no other matches. And no happy little hourse :( 03559 - 07656 Leaf green dice 03559 - 02824 Hot pink rounded box with three white dots and overlaid check mark. 02824 - 07656 Crimson paint brush I also found https://ginifab.com/feeds/pms/color_name_in_image.php that could give me a canonical nuanced names for the colors to be a little more helpful than "green, pink, and red".

Simon Langhof

That was fun. 03382 - 05283 green businesspeople over bar chart 05283 - 10145 brown head with question mark 10145 - 03382 pink figure in weird pose A couple of houses but no match and no happy one

Video Barbershop

Nice! 01766 - 04696 - Pink wall mounted light fixture/ pink Dalek 01766 - 05323 - Light blue "!" in a diamond, outlined 04696 - 05323 - Thick brown head with gear brain

Topottsel

08510 - 08805 - bluey green factory with flag 08510 - 07013 - black eraser with 4 dots 07013 - 08805 - 3 green buisness people

Beanedict Cumbfurbatch

Found all three pairs here! I haven’t noticed any extra matches yet, but I’ll have to finish checking all of them once I’m more awake.

Thecommexokid

My partner and I had fun each looking at one of the cards on our own screen, and alternating questions. “I have a blue briefcase with a dollar sign, do you?” “No, but I have a brown laptop that’s frowning, do you?” I didn’t find hunting for the symbols to be that fun but I enjoyed having to find a way to verbally describe some of the weirder icons. Anyhow, our 3 cards definitely have >=1 pairwise match each: • Pink mouse cursor on clipboard • Orange plughead with curvy wire • Pink repeat/replay icon

David Miller

It was weird how I would try to use a logical search pattern, then after about 5 minutes the matching pairs would just "pop up" when I glanced over 1058 - 1371: Green heart & EKG 1058 - 8138: Red Printed Circuit board 1371 - 8138: Purple outline of a bust of a person in a suit

Stewart Caswell

07396 <==> 04282 Blue car w/ plug 04282 <==> 01820 Purple domino 07396 <==> 01820 Light blue house w/ light bulb

Stewart Caswell

It took me 2.5 hours to find that last one, and I'll be dreaming about these symbols for the rest of my life, but it was fun!

Rick Rubenstein

02625 <> 08348: Salmon ID card in landscape orientation

Rick Rubenstein

02625 <> 08146: Dark blue-green signpost with 2 arrows 08146 <> 08348: Avocado roll of film These took less time than I expected. If it were in B&W, though, it would have been truly horrific.

Luke Albertson

Confirmed! 01401 <-> 04850 Green business folk with bar charts 04850 <-> 02023 3 dark green bowling pins (or skittles, if you prefer) 02023 <-> 01401 Lilac T+ symbol Great fun! Though sadly no Delighted Domiciles have been spotted.

Michael Wheeler

captchas are getting f###ing hard these days. I might be a robot

Abhi Saini

07845 <> 09120 Pale orange Starburst 07845 <> 03537 Orange arrow 09120 <> 03537 Purple thermos That was a fun way to spend 30+ minutes! After a while you start to recognize the shapes more easily. A set of only 300 icons is far easier than the 10k total though!

Przemek Zdunek

@Matt Parker, should the set I received contain of the 'smiley house' from the video?

Piotr Marcińczyk

After groupping by color with Python, it's much easier. I've found one and one only for each of the following pairs: 00348 <> 06412: #C3CD76 cable with plug 00348 <> 09587: #105000 store basket with clock 06412 <> 09587: #B50048 document with warning and 3 dollar signs + pencil

Zach Bean

I thought for sure I'd found one without a match, but (spoiler alert) I didn't. 07550 <> 09928: spent about 5 minutes looking, found nothing. Checked the other cards and came back. Spent about 5 more minutes before finding the red line drawing of a shirt. 07550 <> 03807: found the blue speaker icon with a + almost immediately. 03807 <> 09928: found the red calculator quickly, maybe after a minute or so.

Matthew Merrill

Verified! Although I had a little help from a solver program I wrote to find them for me :) 00742 <> 05837 = Purple honeycomb sphere thing 05837 <> 03923 = Green volume indicator with one bar filled 03923 <> 00742 = Pink-ish globe icon with checkmark in circle Solver: https://github.com/MatthewMerrill/mono-match-mystic

Conor Stuart Roe

00833 <-> 09541 some kind of mint green rectangle with a lid?? no idea what it's supposed to represent lol 00833 <-> 03859 dull green document with vertical graphics 09541 <-> 03859 dark pink eye test chart

Stephen Edmonds

At first I thought that 00374 and 02731 matched on a five pointed star in a solid circle. I found 02731 and 10199 matched on a brown tractor. But then I found that 00374 and 10199 also matched on a brown tractor, so all three of mine share the brown tractor. Looking back at the star in a circle I see that the star is smaller in one, and they are different colours, I forgot that the colour would stay constant...

slugbiker

01378 <> 05449 : dark red stick figure + sun 05449 <> 09806 : medium blue kneeling figure 09806 <> 01378 : green wireframe cube (this one took a several minutes to find - the others seemed to pop right into view).

Jeff Raymakers

Thought about writing a program to help, but it turns out the human visual system isn't a half-bad image processor. 01831 <-> 08887: light blue wineglass tower 01831 <-> 10220: dark brown sun 08887 <-> 10220: red line drawing of laptop plus other stuff

Jon EM

07161 <> 09049 pink X in square 07161 <> 09258 brown-ish name badge(?) with 3 stars 09049 <> 09258 green-ish cloud music took maybe 10 minutes overall, mostly on the first one, seemed to help to describe the symbols as I searched through them

Erin

I thought I was doing pretty well but then got stuck on a pair and spent an inordinate amount of time peeling it apart by color using the Magic Wand set to Global in Paint.NET. I got pretty far along the "maybe this one actually doesn't have a match" line of thought before finding out that the problem was me all along. That said, my cards tended to have sets of similar icons on the same card, which kept triggering my "hey I think I've seen that before" futilely.

Ben Rowe

03482 <> 08280 : Blue arrow 08280 <> 08726 : Red wine glass 08726 <> 03482 : Green Beyblade/Canterbury cross(?)

Calvin Garza

06216 <> 08420 : Purple speaker icon 08420 <> 00094 : Orange scales 00094 <> 06216 : Green head with lightning eyes, "A" headphones, and Africa neck tatoo

Joseph Parker

I've found that on 06871 their are two images near the center that overlap slightly. I think this is due to the random selection and random rotations, it's two large images that have been rotated so their corners overlap. 05357 <> 06817 : Peach Whitebaord with flowchart 01961 <> 08617 : Green hand holding Car Key. 05357 <> 01961 : Pink Speach bubble wih circleing arrows.

Bob Kresoja

Confirmed the following in about 15min. No digital aid: 01299: Blue 4Draws - Pink Person 03301: Pink Toothbrush - Blue 4Draws 05707: Pink Toothbrush - Pink Person

Slasley

08328 <> 01081: blue 4 bar chart 08328 <> 06193: Big 5 pt aqua star with 2 smaller 5 pt stars 01081 <> 06193: Red antlion stick figure in broken barred circle

Lawrence

04363 <> 06970: solid maroon alarm clock 06970 <> 06681: green magnifying glass rewind? 06681 <> 04363: dark blue square with an... open toilet seat?? I found it took me a surprisingly long time to find these -- I ended up batching by colour, eg, comparing just the light-green icons on each card -- but then once I spotted the right one it seemed completely obvious.

sim1

(06457) -[Red User icon]- (09865) (09865) -[pink thumbs up]- (06067) (06457 -[brown semicircle and bell curve]- (06067)

Andrew Foong

09173 - 01303 maroon cityscape 01303 - 04111 square pink clock 04111 - 09173 sock in a light blue circle Took me forever, although would have been a bit quicker if I hadn't forgotten the last one while writing this post...

Ron Foster

05306 - 08162 = purple switchblade comb 08162 - 07288 = blue frowning cabinet/monitor 07288 - 05306 = peach-pink pie chart 25% My wife and I checked each other’s work vid 22:27 left - 05306 = gold woman flowing hair vid 22:27 right - 05306 = magenta cog 8 teeth vid 22:27 left - 08162 = dark green cannon vid 22:27 right - 08162 = blue envelope skull vid 22:27 left - 07288 = dark blue circle-arrow icon with two converging arrows vid 22:27 right - 07288 = purple door open arrow Now my head hurts! I sympathize with Steve Mould's kid

Ingrid

04479 - 09201 - 00687 = All 3 pairs share the same symbol, the green electricity plug looking one.

Victor Tran

09924 <> 01229 - Picture file icon 01229 <> 08608 - Sharp left turn 08608 <> 09924 - Toast

James Fudge

My son's reaction to seeing these cards and trying to find the match..."Mr Parker, what monstrosity have you created!".

Mustafa Barodawala

08229 - 04723 : blue person giving presentation 08229 - 08690 : green trophy with symbol of a crown 04723 - 08690 : purple price tag

TheGuildOfMuteAssassins

00027 <> 04720 : orange giftbox 00027 <> 10207 : dark brown disk stack with check mark 04720 <> 10207 : blue stylized landscape with mountains and cloud if the colour of the same object would be different in different cards this would be almost impossible for me. scanning for a colour is much easier for my brain p.s.: happy little house spotted in 00027 :)

Kadin Tucker

00906 <> 07094 - Green Monitor with Wifi Symbol 07094 <> 10224 - Phone with Health Symbol 00906 <> 10224 - Graduation Cap Took me quite a while to find these, which means there probably aren't more than one!

Myron Fairweather

02427 <> 08356 : 2 pink sausages 08356 <> 09932 : orange jumper 09932 <> 02427 : orangey-red speech bubble Also, I was pleased to see that the football icon has the correct combination of pentagons and hexagons.

Steve Kertes

<--- is found on each card 05814, 05289 and 02870 Staring at my cards so long made finding the matches to the video much easier. 22:27 right side <-> 05814 peach circle 22:27 right side <-> 05289 angry green alien head 22:27 right side <-> 02870 little key over lock 22:27 left side <-> 05814 bag of pounds 22:27 left side <-> 02870 black house 22:27 left side <-> 05289 green shopping cart with arrow

Simon Job

01614 - 05790: blue arrow 01631 - 05790: dark purple circular arrow, half dotted 01614 - 01631: maroon folder with + in circle

Howard Rose

00645 - 02033 Pink handcuffs 00645 - 06183 Pink eye (? or oval-shaped stained glass window) 02033 - 06183 Dark red label (? for gardening)

MattB

03526 - 06686 solid light blue square house with chimney 03526 - 10101 green computer monitor with "play" and "email" icons 06686 - 10101 red file icon with 2 lines of text

David Quick

I can confirm that each pair of mine share an icon, though I was not willing to verify that they shared only one item

Thomas Uhl

01295 - 09552 - 10037 ! Thanks Matt for sending me a set of "spot the pink empire state building" cards. (>_<)

Paul Ganzevoort

08618 <> 05383 Cyan Lightbulb(?) 05383 <> 06906 Teal opened envelope 06906 <> 08618 Yellow-Brownish Five-Holed Bar Thingy right card in the video <> 08618 Angry Purple Imp right card in the video <> 06906 Weirdly Detailed Salmon-ish Face left card in the video <> 08618 Pink This Is Where The Faucet Is havent yet found the last three

Mario Wenzel

06011 <> 04179 - Brown Eye 04109 <> 04179 - Blue Bus 04109 <> 06011 - pink target I took almost 30 minutes on the first two cards without success. Then I took the third one and spotted the difference to the first ones immediately. I think I made the mistake of switching between the first two too often instead of concentrating on one after the other. I fought against the first two cards for maybe 20 minutes without success. I looked at the third card and immediately spotted the differences to the first two. I think it

Lionel Lemarie

I printed mine on a single piece of paper as black icons and crossed each one to confirm that there are no duplicates in each card and each pair has one and only one matching icon. Confirmed!

Aaron Cottle

0393 - 1203: Green light bulb book 1203 - 1538: Red cell phone 0393 - 1538: Red tank top

Joey Foster

00414 - 03954: Red Baby 00414 - 01126: Dark Red Telescope 03954 - 01126: Purple X in a Circle

Kinga

00091 - 06738: Blue House with Dollar Sign 00091 - 08576: Pink Striped Skirt 06738 - 08576: Blue Lightbulb

Gustav U

07772 - 08332: Cyan computer window 07772 - 08514: Dark brown dollar curve 08514 - 08332: Pink trail markers

dowdn

3994-4017 Blue ladder with curves 4017-0658 Long car with puddle 0658-3994 Pink square with arrowhead in centre

Zach Colonius

05179-08924 blue heart inside two curved arrows 05179-03155 magenta long sleeve sweater with circle in the middle 08924-03155 pink smiley face with half circle eyes

Nico Schmidt

00098 – 06479 brown certificate 00098 – 01630 orange rug 01630 – 06479 green shopping bag in a circle? no other matches

Evan Weiss

02233 <> 01141: Blue field with a white star 02233 <> 01884: Green circle, white close to the outer edge, with cut outs every 90 degrees. 01141 <> 01884: Purple flag, 2 horizontal stripes with a star in the center. No other matches. Long time viewer, thank you Matt for the awesome maths content over the years!

David Jolley

02615-08185 green computer displaying a question mark 02615-05660 green stovetop coffee maker 08185-05660 dark brown square shape with short legs I haven't got the willpower to confirm these are the only matches, but can confirm no happy little houses on any of these cards.

epinardscaramel

It works 👍 01626–07126 purple cat 01626–07126 “user” icon 07126–07484 camera

David Walker

05838 -> 01477 MATCH => Computer and Computer Desk 00136 -> 01477 MATCH => The 7 'men' in two lines 00136 -> 05838 MATCH => Orange ACE card 00136 has a really close pair of symbols on it, it has 2 monitors with an up arrow(slight color difference, and slight keyboard difference) though.

Theodore Perkins

Thanks Matt, this was quite fun! And I shared it with my family. As with many others, I didn't confirm that other symbols are not shared. But I found: 01753--05535 greenish-yellow credit card. 01753--07088 orange "text" sign. 05535--07088 I don't know what that thing is, but it's black and white and a white part of it is U shaped

Sally

01131 - 02116 > Light green cup with star 01131 - 08691 > Maroon t-shirt outline 08691 - 02116 > Green monitor with play and envelope icons 02116 had two very similar green gemstones. One had 6 facets, the other 8 facets. I'm now a bit cross-eyed! Too many icons to be a relaxing card game.

Benjamin Heasly

07343 - 02725 = "dark blue floppy GIF" 02725 - 03583 = "blue receipt with calculator" 03583 - 07343 = "purple...laptop? Printing press??" FWIW -- I think I found 'em in 30ish-60ish minutes of staring. The first one kind of popped out at me. For the other two I was more systematic. I picked a symbol on one card, then kind of scanned the other card for that symbol. It felt like there was some kind of efficiency to scanning with one symbol loaded I'm mind. What wholesome fun!

Daniel Albert

02068 - 06917 filled green circle with white pound sign 06917 - 02852 green 6-point snowflake 02068 - 02852 pink clipboard

Uri Rothschild

my older kids (6 and 4) looived this. and so did i. happy to get more cards if possible un any way :-) thanks fir the great content as always. 09098-02745 = medicine bottle/tube 02745-08039 = starship enterprise 09098-08039 = picture symbol (mountains and sun)

Tobias Frinndal

Got it! 00993 - 03605 - Teal key 04765 - 03605 - Brown figure behind a laptop 00993 - 04765 - Light blue flip cell-phone

drimtajm

00475 - 02182 : Blue house with dollar callout ("dollar store") 00475 - 09538 : Green paper with downwards arrow ("download file") 02182 - 09538 - Brown bar chart ("increasing bars") Found the first two very quickly, but the last took an eternity to find. Thanks for a nice puzzle. It was difficult, since there were a lot of similar icons.

Sebastiaan Nijland

Mine worked as well, the first match took me quite some time but I found the other two a lot quicker. 08470 - 05330 : Green double quote 08470 - 06160 : Blue outlined palace-like building 05330 - 06160 : Green folder / directory icon

Oleh Shvets

03072-05064 - sick red arrow 03072-05399 - two blue arrows 05064-05399 - orange fork and knife Thanks a lot, that was a nerdish pleasure🤓 First one took like 5-7 minutes, 2nd and 3rd took less then a minute (since two cards from first comparison were actually carefully studied).

Oleh Shvets

Honeslty, I would love to play online version of this game: Prefaze: two people receive same 2 cards Round winning condition: whoever guessed first (e.g by clicking on a simbol) wins a round. Game lasts till X rounds (defined by players, “3” by default/in “competitive/ranked” mode).

David P Hruska

00428, 01478: Three mountain peaks & sun 00428, 09037: Checkmark inside partial circle 01478, 09037: Monitor & phone

Oleh Shvets

Btw, i don’t know if it’s a bug or a feature, but all my cards (03072, 05064, 05399) have symbols overlapped in a center of a card (either 2 or 3 symbols).

Mattias Buelens

00954 - 05517: Beige "chandelier"... or something? It's a horizontal stick with three "crystals" hanging below it, with two "mounting points" above it. 00954 - 08222: Light blue satellite 05517 - 08222: Purple cupcake Took me 17 minutes to find them all.

iain

06264+05678=can of dog food 05678+06960=pie chart 06960+06264=cursor pointing at circle Had to bruteforce it, no fun at all imho

Adina

05610 + 04982 = pink grinning pigtailed person 04982 + 05229 = red person seated at desk 05229 + 05610 = red-orange linked chain thanks for the puzzle!!

Scott Myers

WOO!! I gotta fFigure mine out. But this jolly fFun!!!

Sami Habib

01819 <> 03703: Rounded brown square with a white continent on it (Antarctica?) 01819 <> 07888: Blue girl with ponytails and love heart eyes However, I couldn't find a match between 03703 and 07888. After spending a good amount of time doing it by hand, I gave up and used Matthew Merrill's program and... it failed! No match found. Turns out I got a Parker Pentagon!

Bill

04672 and 06965: Light green phone w/question mark 06965 and 09833: Green rectangle w/plus sign and dot (game boy?) 09833 and 04672: Purple castle

Aric

09129 - 09545: Lime green hat looking thing with a ball tail? 09545 - 04130: Blue ship 04130 - 09129: Light pink double bar arrows For me, I found that just staring at one of them for a while (5-10 min) will put a bunch of the symbols in my short term memory. Then I started looking on the other cards and found the matching symbols within about 1 minute or so! Much faster than I thought.

Patrick Chambers

Confirmed! {02282, 07873, 05503} All have matches pairwise.

Nachie

00786-10159 = three urinals with a clock below them It's taking way too long to check the other two, it's way too much for me.

Aescula Janus

04258 & 05402: Smiling businessworker 04258 & 06758: Diode into ground? Arrow into arrow-made-of-lines. 05402 & 06758: jump-back arrow

Lunchbag Rodriguez

02494-06519: yellowish arrow 03469-06519: blue play button inside circle 02494-03469: yellowish file with what looks like !i! on it My strategy was to open a text document and give each symbol on 06519 a name. The idea was to do the same with the others and then search using a computer. It turned out that naming each symbol made it easy to recognise them, so after that it was pretty trivial to look at the others and search for familiar symbols.

Stephan Hartmann

{02333} ∩ {02796} = {blue not-injective+not-surjective function ...or (bad) sports tactics on a drawing board} {02333} ∩ {05551} = {car in a pale orange hexagon} {02796} ∩ {05551} = {pink file with a bend corner} Funny enough, I found the first one within the first few minutes after downloading the files. The other two I only found when using GIMP to delete icons I've already checked. Otherwise I was always coming back to a few prominent ones, checking them over and over again.

Nikolaj Gade

00828 + 05108: Green toilet roll 05108 + 01811: Yellow bicycle 00828 + 01811: Cyan wire fence-like square pattern

Arne Tobias Malkenes Ødegaard

01925 + 04760: Blue Wifi-signal 01925 + 00817: Brown grinning face 04760 + 00817: Brown calculator with printout I did not go through to verify that these were the only matches, as I thought that would be a bit much.

Phil Boswell

08759↔09091=Pale Blue stamp with two-peak mountain 02632↔09091=Blue circle containing plus sign 02632↔08759=Deep Pink square with diagonal arrow The last one listed didn't take too long, the other two took ages!

Juri Oudshoorn

05090 + 07964: Oriental pink coloured folder symbol with outgoing arrow 05090 + 08819: Tacha (i.e. yellow-ish) coloured person symbol with plus 07964 + 08819: Jade coloured mailbox symbol Can't guarantee that these were the only matches, but nothing obvious jumped out.

Anders Thapper

05369+09599 : Three orange-red robots(?) (Same position on the two cards) 03912+09599 : Olive phone with nine buttons 03912+05369 : Blue Document with price tag

Jirka Rautavirta

06559+07487+03133: all three have a Purple Cloud So these cards are another case of "happy little house"? I did not search hard enough to exhaust the possibility that there wouldn't be other matches.

Deyan

01926 & 03208 : Circular meter with six sections 01926 & 06138 : Quarter moon 03208 & 06138 : Rolling paint brush I found a visual way of reducing the number of icons when searching for pairs. If all the three images are stitched into a single one - applying a very steep curve color correction would "highlight" icons with similar color channels. Since matching pairs have the same color - a sweep over the whole range reduces the icons to check to just several at a time.

Phil D

06928 + 03637 : Purple hands holding wrists 06928 + 04853 : Pink loudspeaker 03637 + 04853 : Green scallop shell The first and the last one took me ages, but the middle one was super fast. I think because it was a symbol that stuck out as much more obvious than the other two, which were much more generic and blended into the others a lot more. given how long the last one took me I would be amazed if there were any additional matches!

Zsolt Beke

09486 + 08852 = orange clock showing noon 09486 + 07275 = red outline of a shopfront 08852 + 07276 = purplish/pinkish bulletpoint list I also found it easier to choose one symbol on one card and looking for it on the other, thus eliminating the items one by one.

Peter Gašparík

05530 03267 - triangle with a white line at the center, blue, filled 05530 08821 - christmass tree ball, green, filled 08821 03267 - smartphone, blue, outlined

Ndrael

01004 & 01959 = teal-green square-cornered camera 01004 & 09787 = dark blue succulent in a spotted teacup 01959 & 09787 = three pink bars with one section of the bars offset 01004 & left card in video = maroon laptop with percent symbol 01004 & right card in video = salmon lady’s head 01959 & left card in video = pink wheeled machine with USB plug (?) 01959 & right card in video = indigo fire extinguisher 09787 & left card in video = lavender mermaid 09787 & right card in video = three dark blue stacked ovals of increasing length Took me ~40min total, was fun!

Firecakes

02638 + 03514 -> sky blue colored trophy with a crown on top 02638 + 06334 -> green colored head of a faceless person with long hair 03514 + 06334 -> topaz colored GPS marker / pinpoint icon

Benjamen Johnson

03604 and 09464 Orange flag symbol 03604 and 02439 MP4 dog eared sheet 02439 and 09464 Orange house It was a weird experience. I would pick a symbol on one card then scan the other card. After a few minutes trying that, I would pick a symbol on the one card and I didn't even have to check, I just knew it was the right card. It was like my subconscious had memorized the second card.

Sjoerd Smit

Hi Matt, Thanks a lot for the cards! A colleague and friend at work managed to solve them first: 2440 / 1565: three blue circles 2440 / 1111: light brown diamond 1565 / 1111: three brown gears

Scott Myers

I WISH TO REPORT AN ISSUE!! 06145 + 01290 -> Both have two very similar but ultimately different icons, of Three Green Layers. ALSO in 06145 + 01290 -> both have almost identical green stars! One is a bit darker than the other. I know these are both fFALSE links, because they both ALSO ALSO have a Dark Blue Tea Cup with Tea Bag and one piping hot line on top. These other two are just reeeaaaally close to matches.

Dave Bell

07672 + 09101: Brown calendar with clock 07672 + 10147: Blue money 09101 + 10147: Light blue flower thing

Scott Myers

08792 + 06145 -> Green book, line drawing, splayed open with one side a big empty square, the other side a picture and some lines. I have one more match to fFind, but the 06145 + 01290 situation took a bit of time to compare and diagnose.

Arnim Sommer

06616 + 01153: Head with horns 06616 + 04061: Green car 01153 + 04061: Blue head with micky mouse ears

Paavo Saarinen

Took way too long but 1798 + 4352 heart monitor thing that is not a heart monitor at all but I dunno what to call it 1798 + 659 heart in a rounder corner rectangular speech bubble 659 + 4352 some sort of space invader or similar game enemy or whatever point is, match in all 3 pairs

Scott Myers

Ah, here's the last set. So much easier when they are straight matches. 08792 + 01290 -> brown-gray snowflake line pattern

Simon Pain

07711 - 07301 - Purple Dollar sign on Clipboard 07711 - 04318 - Purple clock face with hands at right-angles (assuming there was only one purple clock face as rotation may confuse things) 07301 - 04318 - Green/Brown Crossed out flame

Stephen Feyrer

02095 - 06401 Unenclosed Blue Edison Cap Incandescent Light Bulb symbol 02095 - 05123 Unenclosed Red two tier organisational chart symbol. 05123 - 06401 Unenclosed Green Christmas Tree symbol.

Stephen McIntosh

First one took forever. Last two took about 1 minute each. 02976 -> 10226: rook (light-colored chess piece) 10226 -> 06745: green rectangular speech bubble 06745 -> 02976: red human profile thinking three dots

Josh Bookout

03333-02063 - Maroon Sock 02063-09890 - Brown-Yellow Plate & Water Bottle 09890-03333 - Green Pac-man Ghost

Andrew Walsh

06658 - 00199 Brown squiggly face 06658 - 08066 Red battery level indicator 00199 - 08066 Blue monitor w/ shopping cart

Jeffrey Hollocher

09035 - 08859 : Purple database error 08859 - 02362 : Orange suitcase 02362 - 09035 : Blood red bowl

Jack Jones

00059 - 04007 : Chrysler building (mud green, both are just above the center) 04007 - 06285 : Cash register? (light green, both near the bottom of the pentagon) 06285 - 00059 : Purple cake

John Shulters

05466 - 02586 : brick red open tuna can 02586 - 05415 : teal broken circle w/ plus inside 05415 - 05466 : bright green arrow

Boian Georgiev

06940 - 08708 : pink Tsunami Hazard 08708 - 08758 : dark blue BIN Documents 08758 - 06940 : brown Cassette Tape / Ribbon ?

Stephan Jaborek

First one was pure hell to find. Second and third were no problem, found them in under 60 seconds. 08068 - 07060 : green heptagon with green triangles in it 05241 - 07060 : pink rectangle 05241 - 08068 : dusky pink monitor with a search bar

Ivik Injerd

03108 - 00337 : ocean green Micro SD Card 00337 - 05150 : orange Tree Leaf 03108 - 05150 : cyan Film Actress

Paul Nord

Surprisingly difficult! 03351 - 01579 : pointy head guy 01579 - 06736 : three bullet points, green, no boarder 06736 - 03351 : paper load direction, orange

Neil Spencer

07311 - 09892 : purple cityscape 09892 - 10130 : plant growing into book (?!) 07311 - 10130 : red-purple house

Dave Land

First one almost jumped out at me. The second one was a bit of a slog. The last one required a disciplined "row" by "row" search. Which was less than pure fun. 00628 - 03371 : green crescent moon 03371 – 04216 : red … pill? 04216 - 00628 : green wind and clouds

Dave Land

No sign of the happy little house, but there was a kind of melancholy little house without a window, which I comforted and maybe it's feeling a bit better now. Also, I have what could be a match for @Ivik Injerd's ocean green Micro SD card on 03371. Mine's more of a SIM card with a kind of drop-shadow, so maybe not.

Matthew Lotz

03726 - 05910 : Purple wifi speech bubble 05910 - 04537 : Red locked phone 04537 - 03726 : Red monitor/phone/camera trio? Or weird desktop maybe?

Aaron Mayzes

I've been staring at these for days... I showed these to my brother, and he spotted one right away, and wants everyone to know how much more geniuser he is than me: 03546 - 04569 : red-brown plant with a dollar symbol for a flower I did finally find: 03546 - 06535 : red-brown computer window with bar graph and descending trend line 04569 - 06535 : red-brown filled circle with video player, showing play symbol and progress marker

Shawn Johnson

We had fun finding the matches. I found one, my son found one, and my daughter found one. 03044 + 09181 -> red maze box and dots 09707 + 09181 -> blue computer screen with lock 09707 + 03044 -> green cross hair in partial box / corners

Meta Raappana

02579 - 08547: pink symbol with a printer, that says AVI (presumably meant for. A .avi file) 02579 - 04132: tv with the antennae sticking up, possibly travel tv? Or just old tv 08547 - 04132: blue filled circle with a white L in it, possibly a lopsided clock

Cyril Naud

Finally, I found them! 00416-06286 : a blue little house, not happy but with Wi-Fi, which is kinda the same 00416-07877 : a green heart rate monitor 06286-07877 : a pink flower without petals (or a butterfly with a long tail?)

Octavia Togami

03844 - 07500: light purple map icon 02788 - 03844: a very dark purple large vehicle with a phone on the front 02788 - 07500: a turquoise-y circle with an overlapping square and circle inside it

Thomas Bickley

Third one took so long that I actually ended up chopping up one of the images and rearranging the icons by hue to make it easier to search for matches. Pretty sure if this was a race I would have come dead last 😅 Anyway... 01553 - 04231: Money calendar 04231 - 06331: Sneaky little red satellite 06331 - 01553: Computer mouse plugged in to a megaphone

Gadg3t

Finally got a chance to sit down and go through mine 04502 - 05823 Wreath with bow 04502 - 07820 4 squares 05823 - 07820 A hamburger

Gadg3t

also super surprised no one has put the matches into a spreadsheet yet

Joel

I printed mine and then promptly got tired of flipping between separate leaves; so I rotated one of my PNG files 36° (made the top horizontal) and then nested all three in a sort of "triangle" to print on a single sheet of paper. 01593 - 05791: Camouflaged bold blue checkmark 05791 - 09055: Cyan crossed engine pistons 09055 - 01593: Green box of fancy pencils

Fredrik Örvill

09743 - 09981: light green printer or whatever 09981 - 01406: green dollar sign with a circle around it 09743 - 01406: dark green-brown open padlock with a circle pointing around

Cakemeister

08804-09471 Paper with writing and a pencil 06710-08804 Dark green coffee cup 06710-09471 Red Frowning face

Richard Aquilina

00886 - 01531 : Green pager/printer 01531 - 03161 : Pink flowers 03161 - 00886 : Purple floral leaves

Courtney Schade

00122 - 00415: half an outlined person with bull horn 00122 - 00731: purple perfume bottle 00415 - 00731: blue desk phone

Magesh

00405 - 04453: Cyan shuttlecock 00405 - 04799: Blue Ace of Hearts (Front & Back) 04453 - 04799: Purple speech bubble (000)

evie

08331 - 00438: football pitch 08331 - 06907: blue clipboard with circles and box 00438 - 06907: blue marker with a star

Roberto Casula

01281 - 04325: Cyan target with arrow 04325 - 08409: Maroon clock 08409 - 01281: Black laptop with cloud on screen

that one guy you know

02211 - 02154: Purple three-trangle'd tree 02154 - 08873: Orange-ish Casino slot machine 02211 - 08873: Youtube logo(or something) on a blue laptop

Merlin Magnus

04463 - 05308 pink cloud with check mark 05308 - 08809 brown map marker 08809 - 04463 dull green battery Confirmed no other matches. 10 houses but no happy little Parker houses.

Cameron McCormick

01057 - 03164: Green roll of toilet paper 03164 - 04740: Blue present with bow 01057 - 04740: Lilac cup of tea

Dave Banks

04118 - 09178: blue power symbol 04118 - 09840: maroon upload report icon 09178 - 09840: green bottle with feet? Maybe a motor, or even a blender with a tiny jug???

Mark S.

02407 - 09005: light blue eye iris silhouette 02407 - 10009 share a dark peach silhouette of a person with sunglasses, a mustache and beard, and a suit and tie. 09005 - 10009 share a light blue wifi logo that took about 10 times as long to locate as the other pairs.

Keith Moser

00655 - 07612 share a brown wheat stalk 00655 - 05278 share light green hands holding a light bulb 05278 - 07612 share a pink price tag w/ a star on it Can't believe Matt used the red soccer ball that’s even worse than the UK signage version 😂

Antje Dros

I finally remembered to check my cards. They check out! 00378 - 00555 Dark green drop dripping in water... or something? 00378 - 09159 Pink magnifying glass 00555 - 09159 Black arrows in 90 degree angle My strategy was downloading the pics and crossing the symbols out one by one. It worked fairly quickly I guess, judging by some other comments I read here lol

apocalyptech

FInally got around to checking mine as well, thanks for the fun! I admit I have not exhaustively gone through to verify that these are the *only* matches, but I'd be surprised if there were errors. :) The matches, with their approx. locations underneath. The "cassette tape thing" is totally not actually a cassette tape; it's missing the usual two spool holes in the middle, but it does sort of look like it regardless, w/ a couple holes in the "bottom" bit of the "tape." 04400 - 07361: Cassette-tape thing with a plus (green) (topmost icon, midway from center to bottom) 04400 - 08243: Surprised face w/ bowl haircut (teal) (near leftmost corner, midway from center to rightmost corner) 07361 - 08243: Phone-ringing icon (very dark brown / black) (just left-and-down from center, just up from center)

Harmelodic

00074 - 02923: 4 Blue Books (fine lines) 02923 - 03466: Orange Tumbleweed/Scribble 00074 - 03466: Pink Target For the longest time I thought that 00074 - 03466 had no matches but for the two blue envelopes that look somewhat similar. Had to go through each one on one card and search for it on the other - took forever! but worth it :D

Eric Sexton

I think we found two cards that share two symbols. 02259 and 09216 both have a green heart and double blue arrows. 01419 and 09216 share a pink spyglass. 01419 and 02258 share a purple briefcase with handle

Antoine B

03112 - 03631: magenta long rectangle box thingy 03112 - 08736: punch pink paint circle 03631 - 08736: teal PDB floppy disk Took me a while but I enjoyed finding the matching symbols!

Shad Sterling

07881 - 05712: Empty rectangular orange quote box off-center toward right corner; about half way toward bottom 07881 - 08435: Round orange smiling face with half-eyes and unshaded hair about half way toward lower right side; about half way toward lower left side 05712 - 08435: Full green martini glass with lemon just below left corner; just right of lower left corner

Bracken

07993 - 02960: Blue square of two triangles, one with stars, the other with a butterfly? 07993 - 09297: Cyan rectangle with another inside it and another on it's perimiter. 09297 - 02960: Navy handbag. This would be a great way to harvest tags for these glyphs.

Nicholas Koceja

here to confirm all three of my cards are as advertized. only one match between each card: 01388: blue outline book with bookmark, pink hermitcrab 02474: blue outline book with bookmark, yellowgreen butterfly 07063: pink hermitcrab, yellowgreen butterfly no other symbols match. nicely done! basically a harder version of Wheres Waldo!

JohnyDL

03165, 09759 pink speedometer 03165, 10003 pink bauble 09759, 10003 olive green man cut in half This took me far longer than it should have XD