Scala: Join us for the Advent of Code 2025

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A new Scala blog post/announcement has been posted!

Help the elves!

For the fifth time, the Scala Center is supporting the Scala community’s participation in the annual Advent of Code challenge for 2025. (See Advent of Code Recap 2024 for a recap of 2024’s edition).

We hope you will join us!

What is Advent of Code?

Advent of Code, created by Eric Wastl, is an annual event consisting of a series of Christmas-themed programming puzzles. The puzzles are released daily from December 1st through December 12th. The puzzles start easy and get harder as they go.

The goal for participants is pure enjoyment. But also, you can sharpen your coding skills and improve your knowledge of your programming language of choice (which is Scala, of course).

Note that the event is now 12 days long, not 25 days like previous years.

Discord channel

We have re-opened the #advent-of-code Discord channel at the official Scala Discord Server.

Here you can discuss the puzzles, share solutions, and ask for help.

The channel topic also has a link to a Scala-specific leaderboard, with a code for joining.

Read sample solutions on our website

Our Scala Center Advent of Code website is ready to go for 2025.

Once the event begins, we will post a daily article for each puzzle, a day or two after you’ve had a chance to solve it yourself.

Each article shows a sample solution and explains ho...

Get the full details here: Join us for the Advent of Code 2025 | The Scala Programming Language