But chess has had the same problem - estimates there mostly vary between 200 million and 600 million, but it's also unclear whether these include xiangqi and shogi. However, as a possibly more reliable factual starting point, the chess.com website is now claiming over 20 million members (members, not accounts), with over a million active on a daily basis.
That's nowhere near even 200 million, of course, but it still seems impressive and offers opportunities for humans to continue to make money out of the game. And, as they say of their own site:
Does anybody have an equivalent way to assess the number of go players active online?Of these, well over a million are active on a daily basis. While Chess.com is the most popular chess website and has the most popular chess app in the world (and the best in our opinion!), there are also many more millions who play chess regularly on other websites, apps, and over the board.