For an extra challenge, I try to solve it without looking at the clues, and only using the theme. (some themes are harder than others) Though if a word turns orange, I sort of glance at the clues to see whether it's the wrong direction or built incorrectly. Maybe they could be different colours, like red/orange? Thanks for making it!

This is good feedback, thanks!

I want to add an official “clue-less” mode in the future as a more difficult setting.

I’ll add a note to distinguish “built wrong” from “wrong direction”

Another option here is an auto-rotate if assembled in the wrong orientation.

Oh yeah this is a good idea as well. I could merge the tiles if you build a word in the wrong direction, then let you spin them. Hmm…