Seeing this tweet promoted by Elon Musk made me want to do the stats for France.

Top 5 men: 2812, 2720, 2673, 2637, 2610
Top 5 women: 2588, 2476, 2413, 2367, 2333

Definite proof that men have a (biological?) advantage at chess and especially in top-level competition?

Wait...

I lied. It's not chess in France. It's a heads or tails simulation.
100 women and 900 men start with $1800 and play 1000 rounds of heads or tails for $10 each
The results from the previous tweet are the average obtained after 1000 simulations
Are men better at flipping a coin?
2

Obviously, it's just a matter of number.

As in my heads or tails simulations, men account for 90% of FIDE-rated players.

And just like in my heads or tails simulations, this participation gap explains the difference between the best male and female chess players.
3/5

'we show that 96 per cent of the observed difference would be expected given the much greater number of men who play chess. There is little left for biological or cultural explanations to account for' say these researchers:
cognition.aau.at/download/Publi…
4/5