I like the concept here--but I can't tell why he keeps saying he's stuck. I don't know if the rules aren't clear to me, or if the game is overenthusiastic about deciding that I can't continue from my current position?
Ah! That makes sense. Though...it's also telling me I'm stuck the moment I move through it. Maybe it would be better to have a button that says "you're stuck! [undo]" so that the player can see what's happening?