Solving the 5-Room-Puzzle / Autism Test

An elementary explanation of the logic behind the 5-room-puzzle and the Seven Bridges of Königsberg. I made this to briefly expose my elementary-level students to graph theory. As such, it is highly simplified.

[@The_Pariah]

FIrst thing I see when I load into this page is "Autism Test". WTF does autism have to do with a ~150 year old puzzle? What a jack ass.

[@skaai]

i explained the reason for this misuse in the first 30 seconds of the video. the fact you ignored this and jumped to name calling based on your own assumptions tells me you didn't even watch the video before commenting.

[@The_Pariah]

Please, tell me about how you picking "AUTISM TEST" as your video's thumbnail is a good idea. Please. This is just piss poor decision making to get clicks and you know it.

[@skaai]

do you regularly comment on a video without watching it?

[@mattildahorzowski]

@@The_Pariah picking the title most people out in the world identify it with is the best way to combat misinformation and the author did that. the author of this video points out that this video is named like that by others but he says it's not right and it should be known by the proper name (which you failed to learn): the bridges of konigsberg. so using the popular name is a better way of changing something than using a proper name that the majority of folks would never ever see.

[@The_Pariah]

@@mattildahorzowski - Cool story, bro. Didn't even bother with it.

[@XcaliburReborn]

Start at the door in the middle of top two rooms and finish by missing out the middle door at the bottom. This is the front entrance to the building and is not needed to pass through for the challenge as (you can start anywhere), so starting in the middle of the building means you must have already entered one of the doors and cant pass back through it anyway. That would be the front door that gets left out. 3ez5me

[@viciousclam2417]

I always thought the trick with the five-room "autism test" is that it asks you to draw a picture rather than a physically traversable path. All the rulesets I've seen only say you can't pass a line through a door twice, as opposed to saying you can't *walk* through a door twice. So I took that to mean you could draw a line through a wall of one of the rooms and the trick to solving the puzzle is realizing it's using a model to express the problem and the model tricks you into imposing more restrictions on yourself than the rules dictate. In other words, the solution is to draw a line but your first instinct is to draw a path. Either that or all the five-room puzzles I've seen don't give you enough rules.

[@michaeljurney8354]

I know this is old as fuck but im on the internet and cant help myself. The puzzle doesnt have doors, the doors were added to help dumb people understand what the goal is. My understanding of the original proposition is 'without lifting your pencil cross every line segment once, and only once. This rules out any tomfoolery of abstract thinking, or outside of the box kind of solutions. in my opinion its a test to see how long a person will spend on a problem before crating a solution based on logic and math.

[@lidu6363]

You know... playing Chip's Challenge helps a lot wit these kinds of mental processes!

[@Kushufy]

The entire purpose of the puzzle is to test your ability to understand rules and work within a framework. Your goal is to "draw one line through all of the doors, but you cannot go through the same door twice", meaning you're allowed to draw through the walls. That is the solution.

[@unity6926]

Nah that's gay retroactive shit you just made up after playing Baba is You. Retard

[@UpcomingJedi]

No its not but good try. You cant walk through walls in the puzzle just as if its a real building.

[@inthebackwiththerabbish]

This was really interesting so I subscribed :)

[@SlaughteringSmilesOfficial]

This is really interesting. I accidentally stumbled across this same process on my own in an inverted version of this puzzle. Essentially you have three houses represented by squares, and three services represented by circles. They can be placed anywhere on the paper, but you have to connect all three houses to each of the appliances without crossing a single line. The difference in this puzzle is that it is all to do with shapes rather than edges and vertices. Once you connect 8 of the required 9 lines of services, you find that the last house is always cut off from its third service.

[@theuncalledfor]

I don't see how that's the same puzzle. The principles are similar but not the same.

[@flaviucalin]

This is the best explanation I was looking for. About Euler theory and all that stuff... odd, even... THANKS.

[@zonked1200]

It would help if you DEFINE what the 5 room puzzle actually is before you start discussing why it's impossible.

[@theuncalledfor]

I don't understand the star puzzle at the end. It's too easy, you must have forgotten to mention some of the rules like you can only draw straight lines and can't cross back over your own lines or something. With just the two rules it's an incredibly simple spiral pattern.

[@bellers8049]

I'm diognosed with autisiom and deslectiea and I still don't have a flu or is it my deslectiea idk

[@Craig_edge2002]

It is possible I think I have an answer but I need paper and it's night

[@danielgoad490]

I just figured it out. Lol

[@tyhall11]

It's not solvable big boy

[@sagebowers7204]

Cmon y’all I did this in like 5 minutes.

[@roser462]

What’s the point of doing it when he already said there’s no solution. I’m sorry but his voice gives me anxiety I feel like yelling HURRY UP ALREADY! Lol

[@samueldeandrade8535]

Experimenting to see or feel what fails.

[@jungkookie4904]

I don't understand this at all

[@LocusFelix]

Swear first one can be done but that bridge thing is fucked and I hate you because I am now going to stay up all night to do it!!!! I will devote my life!!!! 😂😂😂😂

[@FreakAboutSims3]

The reason for the name is because only those who suffer from the disorder known as autism would spend this much time trying to figure out something that doesn't matter. As a Doctor, I can confirm this.

[@mynameisaichlinn]

What do you mean 'this much time'. I spent about an hour trying to do this before I googled it. Does that count?

[@gregoryd2050]

mynameisaichlinn A person with autism would actually waste a lot of time trying to figure it out as the test plays upon compulsive behavior. Whether you could figure it out or not doesn't determine autism.

[@mynameisaichlinn]

I know that. I did watch the video. Its just people are saying things like 'this much time' and 'a lot of time'. How much is a lot? I spent 1 hour trying to figure it out before I decided it was impossible and googled it to check. What I'm asking is, does 1 hour count as a very long time to be trying to figure something like this out.

[@CredoNonCredo]

Yeah "doctor", the guy just said that the test has absolutely nothing with autism, it's just a joke made, probably by guys with Asperger's. From your point of view all the people who are into mathematics are autistic. And scientists. And people like Tesla and others who tried to find solutions to "impossible"! So maybe they really are. But they are geniuses!

[@theuncalledfor]

@@gregoryd2050 I figured it out, though not in that exact way, completely on my own. I quickly got sick of trying in vain to just draw the line, so I analyzed _why_ it doesn't work. I drew the rooms as two squares and three pentagons and disconnected them from each other, and found out you can only enter _or_ leave a pentagon, never pass through it (not without leaving out any of the edges that is). So have have to start inside one pentagon and end inside the other, but there are three, so it can never work. From that followed the understanding that an odd number of edges means you have to stop or start inside that shape, and if more than two odd numbers exist, it can't work. It doesn't use the graph theory solution, but it works for this more specialized problem.

[@freyabigland4564]

I tried for so long!!😡

[@SallyGustafson]

:P

[@maartenhimself]

The trick is that you have to fold the paper. It is a test for ‘out of the box thinking’.

[@MrSam1804]

**Proceeds folding monitor** did i pass?

[@maartenhimself]

@@MrSam1804 hahaha XD. Too far from the past, where there was only paper. And too far from the future, where there will be foldable screens.

[@eddiejeffrys1985]

The old Taurus plane solution. I feel like if your going thay far why not a mobile strip plane?

[@ariesradke6193]

i know how to swim. so yeah... i can cross all 7

[@glorytoarstotzka330]

I see some people disliked because they didn't want to hear that it's not possibly solvable

[@spicymickfool]

k5 and k3,3 can't be embedded in the plane. This is k5. K3,3 is the 3 houses three utilities puzzle. My grandfather would throw these puzzles at me sometimes. It would keep me busy for a while.

[@elreyleon6653]

This problem can never be solved because 11 (odd number) doors.

[@theuncalledfor]

Wrong. The amount of doors is irrelevant. It is simple to cross 11 doors arranged in a line. The pattern is important.

[@GEB_Rosee_PPS]

@@theuncalledfor the doors are not in "1 line" tho

[@theuncalledfor]

@@GEB_Rosee_PPS That is my point. If the doors were in one orderly line, you would be able to cross them all easily. They are not. Due to the way they are arranged, it is impossible. It's not the amount of doors that does it, it's the arrangement.

[@rivergod8101]

You've got "666" suscriptors the number of the beast XD

[@TheRedstoneTaco]

CHEATERS

[@ohnoitstheturners4776]

This video made me get so angry that i fliping punched my screen now its cracked and is realy slow

[@The_Pariah]

Maybe you should play less on KZbin and, instead, work on your spelling and grammar.

[@vickiemitchell6722]

I have Autism that's rude

[@mattildahorzowski]

what's rude is that you didn't even bother to watch the video, or you'd know that the name was given by other people and the guy in the video is against that. why do people like you do that?

[@vickiemitchell6722]

@@mattildahorzowski go away I have really bad atusim

[@BanishforCost]

Lmao