Intelligence is nothing without drive, no matter how smart you are you may fail a subject if you lack the interest and desire to succeed.
Add that to the fact that these IQ tests are flawed anyway and who’s to say which sex/race is the smarter?
You can’t base intelligence around who is the greater at strategic games or puzzles or who has the best memory recall, or even who is a human calculator... these factors may make the basis of what we call intelligence but then you need to consider opportunity to learn, interest in subject matter, socioeconomic influences, you need to factor in the processes used to arrive at these decisions – just because you both got there doesn’t mean you arrived at your destination in the correct or easiest way, can you think logically, abstractly are you good at problem solving or can you instantly calculate the right angle to get that ball through the hoop without even realising you’ve done it.
If you desire to know something enough, you will master it, some of the most dim-witted people I have ever known are well respected experts in their fields.
Drive + knowledge = results.
And at the end of the day that’s all that matters.
Women are not smarter than men in general, nor are men smarter than women, the fact that some areas are more highly represented by men and others women comes down to way more complex issues than merely “oh they’re smarter” and it’s impractical to believe that just because the numbers of women playing chess at that level are lower than men that it has any bearing on the intelligence of the general populus.