by JetBrains and Codeforces

October 7, 2021 [14:35 - 17:05 UTC]

Kotlin Heroes

A Coding Contest Like No Other

Challenge yourself in a series of tasks created to push your thinking and coding abilities to their limits. Everyone of every level can have fun completing the tasks to move up in the rankings.

Starting October 1, you can test your programming skills in the practice round.

On October 7, take the real challenge and compete for prizes.

Top 3

Be one of the best of the best and win big prizes: $512 for 1st, $256 for 2nd, and $128 for 3rd place

Top 50

Place among the top 50 competitors to win a Kotlin Heroes T-shirt and exclusive Kotlin stickers.

Feeling lucky

Get through the first task and you will be entered into a draw to win one of 50 Kotlin Heroes T-shirts.

Take risks.

Learn from mistakes.

Be fearless.

Join Kotlin Heroes


Register at to participate in the contest, which will take place on October 7, 2021, 14:35 – 17:05 UTC.

Learn the basics

Get started by learning some Basic Kotlin – solve Koans, explore the Kotlin Playground, read our competitive programming tutorial, or watch the videos from our YouTube Competitive Programming playlist.

Solve problems

You have 2 hours and 30 minutes to complete the tasks. You move up the leaderboard by finding the most efficient solutions to the problems in the shortest time possible.

Win prizes

Keep an eye on your rank during the contest; the best of the best will win big prizes.

Roman Elizarov

Programming contests are a great way to test your programming skills and improve them. Whether you are a seasoned competitive programmer or a Kotlin developer who has never participated in a programming contest before, you’ll find these contests useful, entertaining, and thought-provoking. They’re designed to give everyone a chance to win prizes. We hope that you’ll find the Kotlin language fun and enjoyable to use and that you will keep using it in other programming contests.

Roman Elizarov, ICPC Live Director, Project Lead for Kotlin

Kotlin is a modern, multi-purpose programming language that is concise, safe, interoperable, and tool-friendly. It is developed by a team from JetBrains that includes a number of ICPC World Finalists.

Kotlin is an official programming
language in the ICPC World Finals.

This will take you to, where you will need to register as a participant to enter the Kotlin Heroes contest.