The International Obfuscated C Code Contest (IOCCC29) is in "pending state," meaning the contest is open for you to register:

https://www.ioccc.org/next/register.html

Feel free to register today, even if you are not sure if you want to enter, instead of waiting until the last minute near the contest deadline.

On 2025 December 14th at 23:00 UTC, there will be an IOCCC Discord hangout to discuss IOCCC29. To join the IOCCC Discord server:

https://discord.gg/Wa42Qujwnw

#ioccc #ioccc29 #ioccc2025

We have published a video on the IOCCC Patreon talking about the IOCCC29 contest as well as some of the more important changes to the rules and guidelines:

https://www.patreon.com/posts/ioccc29-dates-144787699?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=postshare_creator&utm_content=join_link

#ioccc #ioccc29 #ioccc2025

The IOCCC29 will run from 2025-12-03 20:25:12.045045 UTC to 2026-03-13 17:19:23.293137 UTC.

This contest will enter the pending state on 2025-12-03 20:25:12.045045 UTC, allowing people to register for the IOCCC:

https://www.ioccc.org/next/register.html

Rules & Guideline feedback welcome:

https://www.ioccc.org/faq.html#feedback

This contest will enter the open state on 2025-12-15 18:21:24.273033 UTC, allowing people to upload submissions.

For how to enter the IOCCC:

https://www.ioccc.org/quick-start.html#enter

#ioccc #ioccc29 #ioccc2025

We have published an update on our progress towards opening the next C contest known as IOCCC29:

https://www.patreon.com/posts/extended-update-142617512?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=postshare_creator&utm_content=join_link

This video is available for both free and paid patrons for who we continue to thank as they provide the funds needed for the servers, services and software necessary to run the contest as well as to support our YouTube producer.

#ioccc #ioccc29 #ioccc2025