if you’d up the amount of slices, so that enumerating all the permutations becomes computationally infeasible, you could do it with a hillclimbing or simulated annealing algorithm. you’d also have a puzzle that would take a human several hours to solve (so if they give the correct answer too quickly, you know they’re a machine …)

The question is incorrect, I didn’t update it. I admit it is confusing.

@ef

A non-javascript version could be coded because it’s just swapping image positions. Marge should be accepted now as well as mis-spellings like marrge.

Images are already hard for some target audiences, but this is just insane if you’re surfing with noscript or something.
Plus the image of Marge Simpson’s back wasn’t recognised as “marge” – maybe that was the old version, but I’d have to think some minutes to try to come to “simpson(s)” as answer to “I think the image looks like a/some”

Is it not sufficient for just the image to be put ‘together’ without the textual question at the bottom. Image assembly is pretty much unambigious, while the question isn’t (Is the answer, ‘[A ]president’, ‘Obama’, [insert misspellings etc])?)

Those issues can be fixed quite easily. It already accepts any case and I could allow any word e.g. Homer or Simpson.

The images are generated from a web search so they could be used depending which country they are from and even match specific content