Show HN: Cerno – CAPTCHA that targets LLM reasoning, not human biology (cerno.sh)

Unfortunately it didn't work for me with my trackball mouse. I tried multiple times. This is very likely also problematic for accessibility without another verification pathway, as assistive devices and screen readers would fail the heuristics too.

this game is a rage bait! Try solving on a mobile device. I don't think an elderly person would ever be able to get through this!

Interesting idea but it didn't accept me the first 3-4 times I tried to draw the path on laptop trackpad - going slow led to it failing before I was finished, going fast led to messy paths that were rejected as well. Could something like this work for users with different levels of dexterity?

I am on a mobile device and I consistently find that my finger is not precise enough to draw a path; it kept complaining about path “not quite right” where my path just touched the wall a little bit. And when my finger literally obscures the screen while drawing, it essentially means I have to memorize an entire path before beginning.

This requires significant spatial thinking skills and short-term memory for a human and it is absolutely unfair for a human to expend that much cognitive power to access a website.

I did it correctly with a mouse and was rejected. Then I drew a straight line and was rejected. Then I closed the tab.

Did not work for me (kept getting "something's not right") but I applaud the concept.

I worry a bit about accessibility but that is a problem all CAPTCHAs have

Everybody is saying it's impossible on mobile/trackpads, but I couldn't do it with a mouse either :(

I'm assuming this is an april fools joke... cause it just don't work at all as a CAPTCHA.

I‘m as confused as the other commenters, especially since it‘s unusable on an iPad.

Is the idea that if you /pass/, you're an AI?

like the idea, but i cant see what i'm doing when my finger coveres the screen

I was lucky to get through two or three bends, given the state of my arms and hands. Yet another way, tech says fuck you if you're disabled.

am i a robot or is this just way too hard?

Does not work on a touchscreen. Can’t see maze under finger and smh it always kicks me in the middle of the drawing

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