this post was submitted on 20 Feb 2026
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Dull Men's Club

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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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[–] thespcicifcocean@lemmy.world 17 points 1 day ago (1 children)

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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[–] Aussiemandeus@aussie.zone 10 points 1 day ago

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

[–] alejandra@lemmy.world 3 points 23 hours ago

I love puzzles like this—the rule always seems obvious after you see it. It’s satisfying when something that sits in the back of your mind for years finally clicks.

[–] LillaApan@feddit.org 1 points 20 hours ago

Don't search for creator of the puzzle, you will be instantly spoilered. At least some search engines return pictures with spoilers.

[–] TorstenTyp@feddit.nu 7 points 1 day ago (1 children)

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

[–] Valmond@lemmy.dbzer0.com 2 points 1 day ago

Those pesky lead pieces all look the same eh!

[–] mushroommunk@lemmy.today 71 points 2 days ago (8 children)

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

[–] Blackmist@feddit.uk 6 points 1 day ago (1 children)

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.

[–] mushroommunk@lemmy.today 2 points 1 day ago (2 children)

Outer Wilds or Outer Worlds because I've heard good things about both but know nothing about either.

I have played Chants of Zenaar some which also hits the feeling.

[–] ProdigalFrog@slrpnk.net 5 points 1 day ago

Outer wilds.

Outer Worlds is just a fairly mediocre sci-fi RPG (IMHO).

[–] Blackmist@feddit.uk 4 points 1 day ago

Outer Wilds.

I think The Outer Worlds was just an RPG.

Wilds is a mystery game of aha moments.

[–] flyhunter@lemmy.world 4 points 1 day ago (2 children)

Take a look on tunic, but it comes with some combat action, which may not be what you are looking for.

[–] mushroommunk@lemmy.today 3 points 1 day ago (1 children)

I've looked at Tunic before but it always looked more like Zelda to me. I dunno why but I've always bounced off Zelda.

[–] flyhunter@lemmy.world 3 points 23 hours ago

I don't like Zelda games myself but loved tunic. The puzzles are completely different than Zelda, much more interesting. The other commenter mentioned you can tone the combat down. Maybe worth a try if it is on sale.

[–] Blackmist@feddit.uk 4 points 1 day ago

You can turn that down and I highly recommend doing so.

I found the combat to be quite obnoxious.

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[–] AppearanceBoring9229@sh.itjust.works 66 points 2 days ago (1 children)

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

[–] Tangent5280@lemmy.world 1 points 34 minutes ago

Oh shit, I thought it was OP just being a dummy. Turns out I'm the dummy

[–] Jilanico@lemmy.world 50 points 2 days ago (2 children)

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@lemmy.blahaj.zone 36 points 2 days ago (2 children)
[–] justanotheruser4@lemmy.world 4 points 1 day ago

Once I saw a video about Mario Kart speedrunning history and there was a record on Rainbow Road that lasted for years. Than someone broke it but just told the community without showing how it was done. In a couple of days someone else figured it out and did it too. Sometimes we just need to know it is possible

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[–] M137@lemmy.world 6 points 1 day ago* (last edited 1 day ago) (1 children)

Wow, I just woke up and saved this to have a nice puzzle to work on for a while but I figured it out in like a minute... Kinda disappointed that happened to be honest.

[–] NikkiDimes@lemmy.world 1 points 23 hours ago

Same thing happened to me lol. I was thinking about primes, how numbers might add up, multiply, etc, and then I noticed the actual pattern. Womp womp lol.

[–] arsCynic@piefed.social 33 points 1 day ago* (last edited 1 day ago) (1 children)
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[–] gigastasio@sh.itjust.works 40 points 2 days ago* (last edited 2 days ago) (2 children)

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 19 points 1 day ago

Thanks but I'll ignore the last set and win

(╯°-°)╯︵ ┻━┻

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[–] Kazumara@discuss.tchncs.de 2 points 1 day ago* (last edited 1 day ago) (1 children)

I prime factored everything and was looking at ways to manipulate the factors together in a sensible rule. Seemed like a good approach, with the prime numbers at the end.

Now I'm a bit disappointed that

spoilerit was just the digits and not the factors...

[–] stoly@lemmy.world 1 points 23 hours ago

This felt like a word puzzle where you have to make an analogous leap beyond surface meaning of words.

[–] Enkrod@feddit.org 28 points 1 day ago (17 children)

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.

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[–] olafurp@lemmy.world 4 points 1 day ago

Nice puzzle, at first you go "wtf last should be 8" but then I read the last sentence "not a typo" and took some minutes to crack it. If it wasn't for having seen a similar solution in a different puzzle I would have been completely lost and once you know the solution it's impossible to not see it. I can see how the author of the puzzle really liked it.

[–] rrrurboatlibad@lemdro.id 6 points 1 day ago (3 children)

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

[–] matlag@sh.itjust.works 1 points 16 hours ago

Took me a bit more and I'm not autistic. But: see below.

Hint that helped meReading op claiming he figured it by just looking at it and not making complicated calculations on a piece of paper probably helped a lot.

[–] BetterDev@programming.dev 1 points 16 hours ago

Same... My brain was hungry for a puzzle to dig into and now its already over. Big sad.

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[–] skulkbane@lemmy.world 5 points 1 day ago* (last edited 1 day 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

[–] captain_aggravated@sh.itjust.works 9 points 1 day ago (3 children)

Took me about 20 minutes. There's a rule you find first that would work if the 7 was an 8. But it isn't. So there's another rule.

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[–] thinkercharmercoderfarmer@slrpnk.net 19 points 1 day ago (1 children)

What the heck man I have things to do today.

[–] LongLive@lemmy.world 4 points 1 day ago

20 minutes. 2 minutes of elation. This is unethical to post without content warnings.

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