Thanks for the useful feedback. What you are saying makes a lot of sense to me. The levels after the XOR gate allow you to use higher level components/gates ra

Thanks for the useful feedback. What you are saying makes a lot of sense to me. The levels after the XOR gate allow you to use higher level components/gates rather than single cells, so the games changes a little after that. I guess reducing the amount of "work" one has to do, by e.g. replacing text with visual hints, is a good idea.