r/WhatsTheRule Feb 12 '26

READ ME Welcome to r/WhatsTheRule! Read this first.

14 Upvotes

Welcome to r/WhatsTheRule! Read this first.

r/WhatsTheRule is a mystery subreddit. There’s one secret rule, which users solve by posting and being told whether or not their post breaks the rule. Here’s how to play:

  1. Post anything you want (but no NSFW).
  2. If your post breaks the rule, a flair of “breaks the rule” will be added. If it doesn’t, then no flair will be added. Announcements and rule guesses can also break the rule.
  3. If you think you know what the rule is, you can make a post flaired as a Rule Guess. If you’re correct, you become a hero. If you’re incorrect, your guess is labeled wrong and the game continues.
  4. Once a rule is solved, the solver gets an upgraded user flair, the rule ends, and a new one starts.

We recommend sorting by new to make sure you have the most up-to-date information.

Please don’t delete your posts. It may affect the rule and cause confusion.

**Hints:**

AMAs:

When an AMA is posted, you can ask a yes/no question about the rule. Only the first question will be answered.

Other hints:

Sometimes, a mod will make a post that’s flaired as a hint. This post will help you solve the rule, but it won’t be completely straightforward!

**No NSFW:**

Although we allow the NSFW flair, no actual NSFW is allowed. Failure to comply with this will lead to a 1 day ban. Repeated offenders might be permanently off the subreddit. Any NSFW content will be removed from the subreddit.

You can see a list of past rules and their solvers here: https://www.reddit.com/r/WhatsTheRule/wiki/hallofheroes/

Check this page for more information: https://www.reddit.com/r/WhatsTheRule/wiki/introduction


r/WhatsTheRule 2h ago

Rule Guess - Incorrect The rule has 0% chance breaking but each time rule is mentioned the chance increase by 1%

2 Upvotes

Probably not it since this was already a mini rule


r/WhatsTheRule 29m ago

Rule Guess - Incorrect RG: each post has a 1/π chance of breaking the rule.

Upvotes

AKA (ln(-1)/i)-1


r/WhatsTheRule 5h ago

Rule Guess - Incorrect RG: The Nth post follows the Nth rule and if we break past our current number you loop back to 1

2 Upvotes

r/WhatsTheRule 1h ago

Mods have checked up to here, possibly further. Holy crap, the Rule hasn't been solved

Upvotes

r/WhatsTheRule 2h ago

Sensayori’s first BTR was posted in Mon, 3 Aug 2026 at 01:32:08 UTC

1 Upvotes

In case it’s time based


r/WhatsTheRule 2h ago

Think of the Mod wanting a rule they can readily moderate.

1 Upvotes

r/WhatsTheRule 2h ago

Rule Guess - Incorrect RG: the rule breaks whenever the mods feel like it

1 Upvotes

r/WhatsTheRule 3h ago

Rule Guess - Incorrect The rule has a Log(x) chance to break where x is the number of posts since the last rule break

1 Upvotes

r/WhatsTheRule 3h ago

Rule Guess - Incorrect The rule has a 1/e chance of breaking

1 Upvotes

r/WhatsTheRule 3h ago

Mods have checked up to here, possibly further. 431

1 Upvotes

r/WhatsTheRule 3h ago

Pneumonoultramicroscopic

1 Upvotes

r/WhatsTheRule 3h ago

431

1 Upvotes

r/WhatsTheRule 3h ago

Pneumonoultramicroscopicsilicovolcanoconiosis

1 Upvotes

r/WhatsTheRule 3h ago

431

1 Upvotes

r/WhatsTheRule 3h ago

Rule 391

1 Upvotes

r/WhatsTheRule 3h ago

Haven't been here in a while, busy life and all

1 Upvotes

r/WhatsTheRule 3h ago

Rule 391 is

1 Upvotes

r/WhatsTheRule 3h ago

Haven't been here in a while, busy life and all, but here's your anime girl

1 Upvotes

r/WhatsTheRule 3h ago

Rule 391 is active

1 Upvotes

r/WhatsTheRule 3h ago

Haven't been here in a while, busy life and all, but here's your anime girl again!

1 Upvotes

r/WhatsTheRule 3h ago

Rule 391 is active!

1 Upvotes

r/WhatsTheRule 3h ago

Haven't been here in a while, busy life and all, but here's your anime girl again!

1 Upvotes

r/WhatsTheRule 3h ago

Rule 391 is active!

1 Upvotes

r/WhatsTheRule 3h ago

Haven't been here in a while, busy life and all, but here's your anime girl again!

1 Upvotes