Show HN: Spatial CAPTCHA – 3D spatial reasoning test against AI bots Posted by Shining_S on Friday November 14, 2025 @02:26AM from the show-hn dept. https://github.com/Shining04/Spatial-CAPTCHA ( 3 comments | on HN )
I built a 3D Spatial CAPTCHA to see if spatial reasoning is a viable way to distinguish humans from AI bots.
It is a proof of concept. I'd love to get your feedback!