men tend to outshine women in anything that is not feminine.
they are better at writing crap on internet forums, they are better at putting down the opposite sex due to their delusionary sense of grandeur, they are better at anything that is a total waste of time such as chess, politics, armpit farting. the list is endless.
I think the only time Kasparov is being a bit dishonest is when he makes that statement. With his line about creativity, he's saying they're pretty good at a lot of things but not creative enough to be great. Which is mostly true since it's backed by facts.