#ioccc29 — Public Fediverse posts

@pkw

Oh. Look at Duff's Device. Its an interesting technique. Then look at some IOCCC winners and see just how fluent in C you are. Oh learn and use macros. Some older winners play with them in extreme ways normal programmers should not.

#ioccc #ioccc29

Starting in **2025**, the fun challenges will be on a single fun challenges web page ( https://www.ioccc.org/2025/challenge.html ) for each contest.

There are still some fun challenges for **IOCCC29** that are **OPEN**.

Have you managed to solve any of them? If your solution is the first to be accepted as valid, **you’ll get the credit**!

Also, check out the FAQ on “submit a fun challenge solution" ( https://www.ioccc.org/faq.html#solve_fun_challenge ).

#ioccc #ioccc29

@jaypatelani

So yesterday #IOCCC29 awards were announced. See the final results.

FYI I develop my entries on @netbsd for maximum portability across BSD and umm well Linux (cough) - Install everywhere, work everywhere.

#NetBSD helps make the magic happen. Thank you.

The winners of IOCCC29 have been announced and posted!

For the IOCCC winner repo:

https://github.com/ioccc-src/winner

For the 2025 directory of the website:

https://www.ioccc.org/2025/index.html

To download the IOCCC29 tarball:

https://www.ioccc.org/2025/2025.tar.bz2

To submit a fix to the website:

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

P.S. We will be updating the 2025 directory tree and tarball as pull requests come in over the next few weeks.

#ioccc #ioccc29

So today I won a category for the 8th time in the @ioccc My involvement has spanned four decades to my surprise thanks to @theregister pointing it out last year (ageism fodder) . Thank you to those believers in my other diverse works for their support.

👾

#ioccc29 #ioccc

I'm a #IOCCC29 WINNER !!! Frack'n Eh!

#IOCCC

#ioccc #ioccc29 it's live on https://www.youtube.com/live/MoWCwZx1Swc

@netbsd

Oh. Same day (today) as the @ioccc 29th contest awards show. Try to finish before 2026-06-06T18:00:00Z so you can come watch.

#IOCCC #IOCCC29

https://fosstodon.org/@ioccc/116653427134338402

Good news @everyone :nerd::bangbang:

The winners of **IOCCC29** will be released in less than 74,000 seconds, which is about 1234 minutes, or about 20.5 hours from the time of this post.

We will announce the winners of IOCCC29 on the Our Favorite Universe YouTube Channel (https://www.youtube.com/@OurFavoriteUniverse) on June 6, 2026, at 11:00 (11AM) Pacific Time:

https://www.youtube.com/live/MoWCwZx1Swc

You may also wish to watch our free Patreon video:

https://www.patreon.com/posts/less-than-74000-160280377

#ioccc #ioccc29

Correction:

The winning entries of IOCCC29 are currently scheduled for 2026 June 6 at 11:00 Pacific == 18:00 UTC. The live reveal will take place on the following Our Favorite Universe YouTube show:

https://www.youtube.com/live/MoWCwZx1Swc

The source will be posted at the show's end.

#ioccc #ioccc29

Good news @everyone, 🤓

The winning entries of IOCCC29 are currently scheduled for 2026 June 6 at 11:00 Pacific == 18:00 UTC.  The live reveal will take place on the following Our Favorite Universe YouTube show:

https://www.youtube.com/live/MoWCwZx1Swc

The source will be posted at the show's end.

For more info, see this free Patreon video:

https://www.patreon.com/posts/update-on-of-159483826

Please help spread the word to various news and technology outlets.  The "official" news release is at:

https://www.ioccc.org/news.html#20260527

#ioccc #ioccc29

Good news @everyone, :nerd:

We’re planning to announce the winners of IOCCC29 on the Our Favorite Universe YouTube Channel (https://www.youtube.com/@OurFavoriteUniverse) on June 6, 2026, at 11:00 a.m. Pacific Time.

Here is the official live show YouTube link:

https://www.youtube.com/live/MoWCwZx1Swc

Please click the ((Subscribe)) button.

It is not really a subscription, and it is free. The ((Subscribe)) button simply tells YouTube that you enjoy Our Favorite Universe YouTube Channel.

#ioccc #ioccc29

We have **tentatively scheduled** announce the winners of **IOCCC29** on the Our Favorite Universe ( https://www.youtube.com/@OurFavoriteUniverse ) YouTube Channel for 2026 June 06 10:00 (10AM) Pacific.

The winners of **IOCCC29** will be released to https://www.ioccc.org at the end of the show.

Please **((Subscribe))** to the YouTube Channel, and click the notification bell :bell: to be notified when the show is formally scheduled, w/Q&A on Discord https://discord.gg/Wa42Qujwnw afterwards.

#ioccc #ioccc29 #ioccc30

Part 2 of 2

We have made great progress on getting ready to present the winning entries for IOCCC29. Since April 5 we made a number of important changes to the IOCCC winner repo (https://github.com/ioccc-src/winner) that is used to create the www.ioccc.org website. See the git log for details.

Our producer has also made substantial progress on getting ready the Our Favorite Universe YouTube channel https://www.youtube.com/@OurFavoriteUniverse - the show & release the source code in May 2026.

#ioccc #ioccc29

Thank you very much for the feedback we received regarding the audio problems with our recent Patreon-recorded videos. With the help of our producer, we made an effort to improve the sound quality.

Please watch/listen to: https://www.patreon.com/posts/ioccc29-update-w-157768321

Part 1 of 2

#ioccc #ioccc29

We are making good process on both the IOCCC29 2025 web site directory, as we as building the content of the Our Favorite Universe YouTube channel show. Stay tuned for further updates!

For more information please watch: https://www.patreon.com/posts/progress-report-156933057

#ioccc #ioccc29

Hello,

We are making good progress on creating the assets needed to present the winning entries of IOCCC29 on the Our Favorite Universe YouTube channel (https://www.youtube.com/@OurFavoriteUniverse), as well as starting the work to convert submission directories into the www.ioccc.org website form.

Please stay tuned for further updates!

#ioccc #ioccc29

For more details watch:

https://www.patreon.com/posts/update-on-156207251

#ioccc #ioccc29

Hello,

We are working on materials we are using for the Our Favorite Universe live YouTube show, where the "assets" are being collected for each submission that will be declared a winner of IOCCC29.

Be sure you are "subscribed" to the Our Favorite Universe YouTube channel, https://www.youtube.com/@OurFavoriteUniverse , and click the notification bell 🛎️ so you can be notified as to when the show will "go live".

#ioccc #ioccc29

We are in the process of converting the submissions to IOCCC29 into winning entry form, as well as to create the items needed to present the winning entries during a live show won by the Our Favorite Universe YouTube channel.

Please subscribe to the Our Favorite Universe YouTube channel: https://www.youtube.com/ourfavoriteuniverse and click the notification bell so you can be informed when we schedule the show.

p.s.: Watch https://www.patreon.com/posts/ioccc29-judging-155384007

#ioccc #ioccc29

Tomorrow, 2026 Apr 2, Landon will begin the long process of converting submissions into winning entry form. This includes improving Makefiles, try.sh, & README.md files. Then we will begin to create the content for the Our Favorite Universe YouTube show to present the winners. Last, we verify were ready to git push the 2025 directory to the website.

ETA to announcing the winners: 1 month. Sorry (tm Canada 🇨🇦) to the impatient: your wait will be well worth it.

Go Artemis!

#ioccc #ioccc29

Happy April Fools’ Day: The rest is NOT an April Fools’ joke:

The IOCCC judges have paused their work today to watch what we hope will be a successful Artemis II launch and successful orbit insertion.

We are beginning to do the formal write-ups of the final round submissions. We have made some adjustments to the set of submissions based on this work. We have a better idea of the set that might win IOCCC29.

#ioccc #ioccc29

We, the IOCCC Judges, are finally in the final round of judging of IOCCC29: unless for some reason we need another final round to finally finalize the winners. :-)

Stay tuned!

P.S. Sometimes the final round takes the longest to finish.

p.p.s. https://www.patreon.com/posts/we-are-finally-153975623

#ioccc #ioccc29

We are about to enter the first of the final rounds of judging, starting Wednesday, 2026 Mar 26. We 1st will review those submissions that have been left behind during all of the pre-final rounds. As we move forward, we shift from considering each submission on its own merit into considering the impact and value that the remaining submissions bring to IOCCC29.

We don't know how many rounds will be in the final rounds as of yet. We will keep you posted!

https://www.patreon.com/posts/about-to-start-153802905

#ioccc #ioccc29

Round N+1 was a marathon judging round for IOCCC29, and we made some really important progress! We’re not quite ready to dive into the final rounds of judging, but we’re getting there.

IOCCC Judges overall remark: We’re thoroughly enjoying reviewing the IOCCC29 submissions!

#ioccc #ioccc29

We’ll carefully review each submission, giving the C code and remarks.md
the time and attention they deserve.

Winners will be announced live on the "Our Favorite Universe".

https://www.youtube.com/@OurFavoriteUniverse

PLEASE subscribe to that YouTube channel and click the notification bell.
The winning source will be uploaded to www.ioccc.org at the end of the show.

We may also post progress updates on Mastodon:

https://fosstodon.org/@ioccc

And Discord server. To join:

https://discord.com/invite/Wa42Qujwnw

#ioccc #ioccc29

The IOCCC is now closed for new submissions.

For the many who submitted to this IOCCC, we THANK YOU. Without your
efforts, talent, creativity, and C coding skill, there wouldn't be an IOCCC!

If you missed this IOCCC, please submit to the next IOCCC, which we
are happy to announce we are planning to hold another IOCCC next year.

The IOCCC judges will go into "radio silence" as we judge the many
submissions. How long depends on the submission quantity & quality.

#ioccc #ioccc29

The 29th International Obfuscated C Contest closes at 2026-03-13 17:19:23.293137 UTC.

You have less than a week to upload your submissions to the International Obfuscated C Code Contest!

For details see this free Patreon post:

https://www.patreon.com/posts/ioccc29-closes-152429675

#ioccc #IOCCC29

Just a friendly reminder that **IOCCC29** will be open for only 2 weeks more. The submission deadline is **2026-03-13 17:19:23.293137 UTC**.

#ioccc #ioccc29

The IOCCC29 is open for less than a month (2026-03-13 17:19:23.293137 UTC).

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

On receipt of IOCCC email, login and change your initial password: https://www.ioccc.org/next/pw-change.html

Re-register if you didn't change your initial password in 14 days.

Obtain the mkiocccentry toolkit: https://www.ioccc.org/faq.html#obtaining_mkiocccentry

Use the mkiocccentry to form your submission compressed tarball: https://www.ioccc.org/faq.html#using_mkiocccentry

Upload your submission: https://www.ioccc.org/next/submit.html

#ioccc #ioccc29