Thank you for your interest. This form is only used to send you a private link to the updated set of high-difficulty reasoning problems. I’m sharing the link this way because Reddit’s automated filters were blocking direct posts.

The set contains 36 untimed, non-commercial puzzles inspired by the styles of Langdon and Hoeflin. You can look through the items first and decide whether you want to attempt them — there is no obligation to complete anything.

Participation is completely free. Any feedback on wording, clarity, or difficulty is welcome, as it helps refine and norm the updated version.

Your email will only be used to send the link and optional follow-up messages related to this project. It won’t be shared or used for anything else.

Thanks for taking the time.

— E. W. Arden