i'm going to be frank, i rage quited not because of the actual design of the levels, but because the controls were awful and the fact that the bishops aren't even deterministic (i had them sometimes enter the exit of the level!). it's too easy to accidentally run into a knight when you meant to change directions, and the bishops makes it impossible to plan ahead as there's too much stuff going on to actually think.
the concept is really solid however. execution isn't so great, but half of that is the controls.