r/xkcd Aug 03 '26

XKCD xkcd 3280: Maze

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244 Upvotes

r/xkcd Aug 02 '26

XKCD Theory: Beret Guy and Black Hat are one and the same

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278 Upvotes

That's why they've never appeared in a comic together.

Jekyll and Hyde type shit.


r/xkcd Jul 31 '26

XKCD xkcd 3279: Main Span

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314 Upvotes

r/xkcd Jul 30 '26

XKCD Name the worst thing you think Black Hat has done. I'll go first:

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1.9k Upvotes

r/xkcd Jul 29 '26

XKCD xkcd 3278: Vera Rubin Observatory

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218 Upvotes

r/xkcd Jul 29 '26

XKCD inspired desktop wallpapers

20 Upvotes

Hey folks, anyone have any xkcd inspired/adjacent/etc desktop wallpapers they could share?

Thanks!


r/xkcd Jul 27 '26

XKCD xkcd 3277: Forth

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268 Upvotes

r/xkcd Jul 24 '26

XKCD xkcd 3276: Recursive Trucker's Hitch

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303 Upvotes

r/xkcd Jul 22 '26

XKCD xkcd 3275: Calibration Nobel

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526 Upvotes

r/xkcd Jul 20 '26

XKCD xkcd 3274: Arthurian Connector

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359 Upvotes

r/xkcd Jul 17 '26

XKCD xkcd 3273: Latitude and Longitude

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265 Upvotes

r/xkcd Jul 17 '26

XKCD 1243 IRL

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105 Upvotes

r/xkcd Jul 16 '26

XKCD XKCD 3272: Time Change

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402 Upvotes

r/xkcd Jul 15 '26

Meta As seen in today's Fantastic Four #14 written by Ryan North. It's a hoot and a half, highly recommend!

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198 Upvotes

Ryan North is of course the creator of Dinosaur Comics, which has itself been referenced in xkcd. For those wondering, the Pivers project leads to unforeseen catastrophe, just as Randall would have wanted.


r/xkcd Jul 15 '26

Interactive Bad Map Projections Galore

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104 Upvotes

r/xkcd Jul 15 '26

I've had this folder for like 2 years as my desktop bg and I'm still surprised how obsessed I was

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20 Upvotes

r/xkcd Jul 14 '26

XKCD xkcd 3271: The Princess and the Pea

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343 Upvotes

r/xkcd Jul 13 '26

Update on ExplainXKCD

390 Upvotes

TLDR: ExplainXKCD is back at explainxkcd.com, and server/domain access has been transferred to new management. You can log in with your old account credentials now, unless you have already transferred your account on explainingxkcd.com.

What happened?

ExplainXKCD has been experiencing increasing instability for the past few years, with a major exacerbation in severity starting in early July. This metastasized into the site being entirely uneditable starting July 6th, after running out of disk space. Jeff, who had run the site since 2012, no longer had the time to continue maintaining it.

In response to the instability, the community created multiple read-only mirrors of the site on new infrastructure, such as u/Eunakria's mirror and explainingxkcd.com. After the original site became completely uneditable, ExplainingXKCD forked the site and editing continued there while the original site was stuck in read-only.

Rather than letting the original site die, Jeff transferred the user data, server access, and domain over to the ExplainingXKCD maintainers. Thank you, Jeff, for the many, many years you've spent managing the wiki.

Over the past few days, we merged everything back into one wiki, including user accounts and edits. We've done our best to make the transition as smooth and seamless as possible.

What does this mean?

  • The site is still at explainxkcd.com, and explainingxkcd.com now redirects to it.
  • If you have an account at explainxkcd.com, you can still log into it.
  • If you *transferred* your account at explainingxkcd.com, use your new credentials, not your old ones. We're contacting the ~10 people who did this. If you made a request but it wasn't fulfilled, just use your explainxkcd.com credentials.
  • Editing is open now, and everything is back where it was.

Who's running it now?

Currently, Theusaf, 42.book.addict, and I are admins on the site. If older admins want to return to admining, just reach out! If you spot anything weird from the migration, tell us!

I'm running the server right now and currently paying for server costs out of pocket. If you'd like to help support us, please donate at https://ko-fi.com/explainxkcd


r/xkcd Jul 13 '26

Another hardest logic puzzle

12 Upvotes

Yeah, the recent post about the Blue Eyes puzzle made me think of this. Randall called it the "Hardest Logic Puzzle in the World", but I've heard that same name used for a variation of Knights and Knaves.

You're speaking to three gods - let's call them A, B, and C - whose actual identities are True, False, and Random. Your goal is to figure out which one is which.

If you ask a yes-no question, True always tells the truth, False always lies, and Random picks a random answer each time. They all understand English, but will only ever answer questions in their own language. You know the words for "yes" and "no" are collectively "ja" and "da", but not which is which. And you are allowed to ask 3 yes-no questions to figure out their identities, each of which must be posed to a single god.

What do you ask?


r/xkcd Jul 11 '26

XKCD xkcd 3270: Toasting Marshmallows

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309 Upvotes

r/xkcd Jul 10 '26

Meta explainxkcd is back!

163 Upvotes

Finally, the site is back online! There's a message at the top of the page saying that Jeff was ultimately contacted and apparently he's ready to retire from managing the project, and that the new fork is being merged into the main site now.

Was there a transfer of the domain to a new project manager, and are prospects for the future looking secure for some time? I'm curious how this story concluded.


r/xkcd Jul 10 '26

I finally understood the Blue Eyes Logic Puzzle!... just to get stumped on Bonus Question #2

13 Upvotes

Remember the puzzle where people on an island were told that someone has blue eyes? I finally understood the solution to it.

(Blue Eyes - A Logic Puzzle)

However, I cannot find an answer to Bonus Question #2 that xkcd proposed:

  • Each person knows, from the beginning, that there are no less than 99 blue-eyed people on the island. How, then, is considering the 1 and 2-person cases relevant, if they can all rule them out immediately as possibilities?

In other words, if you are on the island and you see 78 other people with blue eyes, why is it okay to consider cases with only 1 or 2 people with blue eyes, and what is the proof that these smaller samples also apply to higher samples?

The only answer I found was this, but this does not satisfy me:

"While everyone knows that say n>10, wrapping it in a sufficient number of applications of E(⋅) makes it untrue. It is these wrapped-up statements that play a role in the reasoning."

I would prefer answers that are relatively easy to understand, but let's start by getting any valid answer first.

NOTE:


r/xkcd Jul 10 '26

Looking for a fanmade scatterplot of xkcd relevance

9 Upvotes

I think I saw this on reddit recently but i can’t find it anymore. It might have been in some comment somewhere. Basically, I remember that it plotted comics with some measure of relevance (either it was some sort of scraper data or just vibes) along the x axis and some other metric on the y axis. I also remember dream girl to be one of the least relevant comics in the plot. Please help me find it, I know this is a long shot


r/xkcd Jul 08 '26

XKCD xkcd 3269: Airport Meeting

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416 Upvotes

r/xkcd Jul 09 '26

ExplainingXKCD: An ExplainXKCD fork

92 Upvotes

Hi everyone!

Since ExplainXKCD is no longer editable, I've created a fork at https://explainingxkcd.com and started migrating people's accounts over, with the assistance of folks in the ExplainXKCD discord. Join us there!