Bill Gates
Who is the RICHEST chess player?

Bill Gates - richest man on the planet.
I read somewhere that he is a passionate chess player if that is true nobody can be richer.
you didn't specify richest chess master.
First of all, it appears that Bill Gates isn't much of a chess player....
Just goes to show you that you dont have to be a great chessplayer to be wealthy.
Very true. Didn't Magnus beat Gates in less than 15 moves recently?
Come on though, most of us would lose to Magnus in very short order.
Queen Elizabeth II plays the game. I think I'd really enjoy playing a game with her.
Here's more famous folks who play. http://monroi.com/chess-info/44-in/446-celebrities-play-chess.html

Bill Gates had a technically won game against Monster after 7 moves !....Yes, he's a chessplayer....err, he knows the rules of play - so, qualifies....agree ?
One ChessBase article (http://en.chessbase.com/post/breaking-news-carlsen-and-kasparov-join-forces/) says "It is estimated that Kasparov earned over 30 million US$ or 23 million Euros during his chess career".

NM Boaz Weinstein: USD 450 million
https://en.wikipedia.org/wiki/Boaz_Weinstein
http://ratings.fide.com/card.phtml?event=2007908

Surely enough mr. van Oosteroom.
"At least 1.3 billion"
https://www.wealthx.com/dossier/joop-j-van-oosterom/
look at individual chess sponsers.