Previous years: 2021, 2022, 2023, 2024
There will be a Christmas-themed puzzle every day between the 1st and 24th of December, where the accepted answer will be rewarded with a bounty.
To make this work, we need a few users who are willing to prepare nice puzzles for this event. Note that the awarding of bounties is handled separately, so you can join without having to give reputation away (although you can optionally choose to award a bounty yourself). To post a puzzle for this event, you should meet the following criteria:
- You have posted at least one question on PSE with a vote score of at least 5.
- The puzzle is Christmas-themed (seasonal).
- The title of the puzzle should be
PSE Advent Calendar 2025 (Day X): {puzzle title}. - A header with a link to this post and the previous/next entries of the calendar (if and when available):
<sub>This puzzle is part of the [Puzzling Stack Exchange Advent Calendar 2025](https://puzzling.meta.stackexchange.com/questions/7740). The accepted answer to this question will be awarded a bounty worth {X} reputation.<br><br>[<kbd>< Previous Door</kbd>](link) [<kbd>Next Door ></kbd>](link)</sub><hr> - If possible, please post a hint every ~24 hours as long as your puzzle remains unsolved.
Please do not announce your participation in an answer or comment to this post. We will plan the allocations of puzzles in a spreadsheet and coordinate / discuss puzzles in this dedicated chat room.
