So the rules given are Uniqueness, Legibility, Color/Contrast with a very simplistic description of each which I imagine reflects the rules used. That logo pass

So the rules given are Uniqueness, Legibility, Color/Contrast with a very simplistic description of each which I imagine reflects the rules used. That logo passes with flying colours according to their criteria, perhaps lower marks for legibility. Needless to say, there are more things to logo design than are dreamt of in this philosophy. There's more about how they use deep learning here: http://brandmark.io/intro/ http://brandmark.io/intro/ but for me it seems the constraints they've chosen are ill-conceived (things like matching logo strength to font weight) and unlikely to come up with something inspiring or even decent a lot of the time or rank things well which humans would have no difficulty recognising. This is a difficult problem, and I wouldn't expect rules based solutions to work very well, though some kind of permutation engine starting from known good designs could work better.