Glad you like it!
Guards are a bit tricky, there is no directionality, only distance and checks for illumination. I should add more feedback
They play their turn after yours, the behavior is:
* they see only while "illuminated".
* if you are illuminated and adjacent to them at the end of your turn, they will discover you.
* if you "bump" into them, and either you or them is illuminated, they will also discover you.
* They see illuminated things (yourself and your prints) with a range of 2, moving towards if possible.
* if they are on the dark, they will try to patrol.