ADVENT OF CODE 2025

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Start: 01.12.2025 @ 00:00

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We’re excited to start the Base42 Advent of Code 2025, a unique event that combines programming challenges, friendly competition, and charitable giving. This year, Base42 is not only bringing you the thrill of solving coding puzzles but also giving you a chance to make a real impact through donations to charitable causes.

Here’s everything you need to know about the competition, the rules, and how you can participate.

How It Works:

• Advent of Code is a yearly event that challenges coders to solve 12 puzzles over the course of December. Our competition is based around the official leaderboard for the event. Whether you’re a skilled programmer or just starting out, you’re invited to join us for a fun and impactful month of problem-solving.
• Leaderboard: Participants will be ranked on the official Advent of Code leaderboard based on their progress (number of stars earned) each day.
• Charity Focus: For each star you earn, Base42 will donate 10 MKD directly to a charity chosen by the first-place winner of the leaderboard.
• Prize Pool: Unlike last year there is no prize pool for participants, all the money goes directly to charity.
• Closing Party: Join us on December 12 to celebrate the end of Advent of Code 2025 and raise even more for charity!

Who Can Participate?

• Individual Participants:
  Anyone can join the competition and participate in the official Advent of Code leaderboard. Whether you're a beginner or an experienced developer, this event is open to everyone. You can compete for fun, or if you choose to pay the participation fee, you'll be eligible for the prize pool.
• Company Participation and Sponsorship:
  Companies are encouraged to get involved as sponsors and donors of the event! By sponsoring the competition, your company can contribute to the funds that will be donated to charity and they can get their logo on our leaderboard page.

How to participate

• Join the Discord server, you can find the leaderboard join code in the #advent-of-code channel
• Enter the leaderboard code you got from the Discord server into the [Advent Of Code](https://adventofcode.com/2025/leaderboard/private website
• Code away for the next 12 days, and may the best coder win!

Rules:

• Code of Ethics: While AI tools are prohibited in the competition, we recognize that it’s not always possible to prevent the use of such tools. We trust participants to follow the honor system and compete fairly. Please keep the spirit of the event in mind and avoid using AI to solve the puzzles. Let’s keep it a challenge of skill and creativity!
• Joining the Competition: To enter, join the Base42 Discord server, sign up, and join the official Advent of Code leaderboard. Leaderboard: 126659-ce374c04
• Sponsorship: Companies are invited to sponsor the event and contribute to the prize pool. Sponsors can contribute any amount, and their donation will be added to the prize pool, following the same distribution rules as above.
• Charity Selection: This year the charity of choice will be DonirajKompjuter
• Fair Play: Participants are expected to compete with integrity and in accordance with the rules of Advent of Code.
• Online: The competition will mostly be online as it's very long running, but you're welcome and encouraged to group up and come by in Base42 IRL and solve challenges together.

Get Involved:

• Compete:
  Solve the daily puzzles, earn stars, and climb the leaderboard. Every star counts towards increasing our charity donation!
• Support a Cause:
  Help us make a real difference in the world by contributing through your coding skills. Every time you solve a puzzle, you’re helping to fund a charity chosen on the final day.
• Sponsor the Event:
  If you're part of a company that wants to get involved, consider sponsoring the competition! For more info, contact us at [email protected].

Why Participate?

• For the Thrill of Coding:
  Challenge yourself with daily puzzles and see how you stack up against other talented developers.
• For a Good Cause:
  You'll also be directly contributing to a good cause.
• For Being Awesome:
  Do you even need a reason to flex your 1337 coding skillz?

We can’t wait to see who takes the top spot this year and to see how much we can raise for charity!
Let’s make this the best Advent of Code yet.
Good luck and happy hacking!

Questions?

If you have any questions about the competition or need more information on how to join, feel free to reach out to us on the Discord server, social media, or via email at [email protected].
Let’s code for a cause!