514

I’d like to ask the good people of this community that, if you do know the solution or figure it out, that you not share the answer here. Feel free to announce your success, but there’s something to be said for discovering the answer completely unaided, even if it takes years.

It’s embarrassingly obvious once you see it though.

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[-] mushroommunk@lemmy.today 73 points 2 months ago

Ever play the game Myst? As a kid that's exactly how it was. Days of banging my head and then a rush of finally figuring something out. Really miss that

[-] gigastasio@sh.itjust.works 20 points 2 months ago

Loved that game and every game in that series. Part of the fun was being dropped into this world with no clues and just having to feel your way around.

I admit that I surrendered after a while and got a walkthrough, which was followed by several hours of, “Oh for fucks sake I could have figured that out!”

[-] mushroommunk@lemmy.today 11 points 2 months ago

Every once in a while I definitely needed the walkthrough too. I hear blue price hits the same feeling. My wife and I just need to find time to dive into it together

[-] Blackmist@feddit.uk 7 points 2 months ago

I recommend Outer Wilds then.

Go in as blind as possible. They recommend a controller over mouse and keyboard and they mean it. The DLC is just as good as the base game, but I'd tackle it after doing the main objective.

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[-] JaymesRS@piefed.world 6 points 2 months ago

Did you ever read the tie-in novels?

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[-] AppearanceBoring9229@sh.itjust.works 71 points 2 months ago

For everyone saying it's the difference between the two numbers, it's not it. Because the last one should be 8 to follow the rule

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[-] Jilanico@lemmy.world 55 points 2 months ago

Figured it out. Weirdly, knowing you solved it made me confident I could too, and I don't even know you 🤔

spoilerI focused on the anomaly ignoring the rest, tried to see what possible rules could lead to it, then went back to see which rule also applied to the "non-anomalous" numbers.


[-] bamboo 41 points 2 months ago
[-] Jilanico@lemmy.world 11 points 2 months ago

Amazing story 💫

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[-] Snailpope@lemmy.world 11 points 2 months ago
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[-] gigastasio@sh.itjust.works 44 points 2 months ago* (last edited 2 months ago)

Free clue: It’s not 15. That solution doesn’t work for the bottom numbers, and it’s very clearly stated that the 7 is not a typo.

Edit: What makes this puzzle so good is that it tempts you with an “obvious” solution that works with all but the last set, but there’s an equally obvious solution that does fit every set, if you can shake yourself free of the fist one.

[-] BlackVenom@lemmy.world 23 points 2 months ago

Thanks but I'll ignore the last set and win

(╯°-°)╯︵ ┻━┻

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[-] arsCynic@piefed.social 38 points 2 months ago* (last edited 2 months ago)
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[-] Enkrod@feddit.org 28 points 2 months ago

Hah, took me nearly a minute.

Tap for spoilerAdd the digits on both sides.

? = 12

But I only got it so quickly because I enjoyed a similar puzzle once.

1
11
21
1211
111221
312211
...

continue the series.

[-] Barbarian@sh.itjust.works 12 points 2 months ago

Did I get it?

answer13112221

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[-] Zamboni_Driver@lemmy.ca 24 points 2 months ago

Wow so easy, I got this in negative 4 second, literally 4 seconds before I even saw the puzzle. Of course I'm not going to share the solution here because I don't want to ruin It, but I definitely got it.

[-] thinkercharmercoderfarmer@slrpnk.net 19 points 2 months ago

What the heck man I have things to do today.

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[-] thespcicifcocean@lemmy.world 19 points 2 months ago

I think I figured it out, but it's so easy that I don't think that could possibly be it. But it is, apparently.

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[-] Lembot_0006@programming.dev 16 points 2 months ago

This kind of puzzle is very lazy for creators: just make the function more complicated and/or increase the amount of parameters and this makes the puzzle drastically more difficult.

The method of solving is just brute force. Boring. Uninspiring.

[-] missingno@fedia.io 30 points 2 months ago

The function is not complicated, and the solution does not require brute force. In fact, it's quite elegant in its simplicity.

And when you get it, you then get to take a step back and admire how the creator was able to set up the numbers given to almost point to the red herring answer. Not a lazy puzzle at all.

[-] Attack0fthenerd@lemmy.dbzer0.com 12 points 2 months ago

Boring and uninspiring ass comment. You know it's free to not post anything and allow people to enjoy shit?

[-] starik@lemmy.zip 10 points 2 months ago

That’s what makes me think it’s not a math puzzle. If it turns out to be like “divide by 3, add 2, multiply by 2, add 4,….” it wouldn’t be very interesting.

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[-] emeralddawn45@lemmy.dbzer0.com 15 points 2 months ago

The number of comments in this thread where people confidently declare they solved it with the wrong answer is absolutely baffling. Especially since it literally calls out the exception to that 'solution' in the post itself. Did those people not even look at the 7? That's the real strength of this puzzle, making idiots who think they're geniuses loudly prove their stupidity.

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[-] ComicalMayhem@lemmy.world 15 points 2 months ago

Got it. Very misleading puzzle, haha.

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[-] David_Eight@lemmy.world 14 points 2 months ago

How do we know if we're right then?

[-] gigastasio@sh.itjust.works 49 points 2 months ago

You’ll feel a sudden, unmistakable rush of self-confidence.

[-] southsamurai@sh.itjust.works 6 points 2 months ago

You solve for it.

If the answer you get is right, you'll be able to apply it to every trio and get the number on the "line". It's kinda like how you can plug in your answer into a quadratic equation to double check you got it right.

[-] MrVilliam@sh.itjust.works 11 points 2 months ago

It took me several minutes but I finally got it. The comment saying to focus on the "anomaly" and how it could be 7 helped me to get there.

Yeah, feels pretty silly that I didn't see it sooner. I overcomplicated it haha.

[-] TorstenTyp@feddit.nu 11 points 2 months ago

Ah, typo is short for typographical error. I’v never realized that before.

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[-] malle_yeno@pawb.social 11 points 2 months ago

Figured it out! That was cool, thanks!

Tap for spoilerOnce I saw it and heard "the solution isn't obvious", I got focused on the idea of digital roots cuz I thought back to the game series 999. But that didn't work, so I focused on the shape of the pizzle and thought it looked like a thermometer, so I tried conversions of F to C, which also didn't work. But when I heard other people say that it made then think about the "obvious" solution and work around the 7, I thought back to my digital root idea and realized I was applying it in a different way in 999 versus what's happening here.

This was a fun adventure~

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[-] Aussiemandeus@aussie.zone 10 points 2 months ago

I figured it out took about 10 minutes, thought i was onto it immediately until I had 8 at the end haha

[-] Triumph@fedia.io 10 points 2 months ago

That was easy. Years, you say?

[-] someacnt@sh.itjust.works 9 points 2 months ago

IMHO, although it is hard to solve, it is neither brilliant nor profound - rather, it is misleading. It relies on a simple and common trickery involving multiple of 3, which is easy to see through for those with mathematical intuition. Of course many do not practice math, so it is seemingly interesting for them, but it's not much.

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[-] skulkbane@lemmy.world 9 points 2 months ago* (last edited 2 months ago)

Oh i see,

Its

solution12

You add up the digits.

(7+2)+(9+9)=9+18=27

9+(4+5)=9+9=18

(1+8)+(3+9)=9+12=21

(2+1)+(3+6)=3+9=12

3+(2+8)=3+10=13

(1+3)+(2+1)=4+3=7

Yay

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[-] 0ops@piefed.zip 9 points 2 months ago

I admit this one extended my toilet time more than I intended, but I got it!

[-] rrrurboatlibad@lemdro.id 8 points 2 months ago

I figured it out in about 3 minutes. I think I'm autistic or something

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[-] Star 8 points 2 months ago

Got it in my first try! Thanks for making me feel extra smart today, though I think I'm just lucky. I recently watched a horror game with a similar one xD

[-] zout@fedia.io 7 points 2 months ago
[-] gigastasio@sh.itjust.works 7 points 2 months ago

Shh! Don’t tell ‘em how you got it! 😜

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[-] Treczoks@lemmy.world 6 points 2 months ago

That was a mean one. Adding another row at the top would expose it, though.

[-] rmuk@feddit.uk 6 points 2 months ago

Okay, I've got it. I suggest you take your time before revealing because it's quite satisfying if you figure it out yourself.

Each circle has something different inside it. You need to make sure the circle at the end of the arrow is different to the circle at the start of the arrow. This can be tricky because some circles have TWO arrows pointing at them, so it needs to be different to both things.

Interestingly this puzzle has multiple solutions. Here they are:

5, grape, Montreal, 97

Let me know if you find any others!

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this post was submitted on 20 Feb 2026
514 points (100.0% liked)

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