At least we still have https://www.ioccc.org/2025/index.html#inventory !

Oh my god, and to think that OCC used to just be ways to torture the pre-processor... stunning work. Utter and complete no holds barred mud.

I got excited thinking maybe another one was going to be held, because it was a lot of fun to do! Oh well.

If I put my submission up on github, is that considered unethical in the days of LLMs?

2026 calls for an Underhanded prompt contest

Or better, sleeper agents. Anthropic released a study on this in 2024 "Sleeper Agents: Training Deceptive LLMs that Persist Through Safety Training" -- https://www.anthropic.com/research/sleeper-agents-training-d..., https://www.youtube.com/watch?v=_y9j2BoHg2c