If you say it often enough it becomes true
Then the game gets shorthanded like 4 or 5 handed, and he says, I'm done too unless anyone is interested in some Omaha hi low with no restrictions, or maybe it was Stud hi lo with no restrictions. The other players pretty much said no fuckin way I'd play that game with you, your a fuckin math genius. Moral of the story : Sklansky is a feared Hi LO no restrictions specialist be careful.
I'm pretty sure the game he suggested was stud hi/lo with no restrictions. He used to play that game in college (Yes, David did go to college for a year). Ever since then, whenever he gets a chance he'll tell whoever wants to listen that he's the worlds greatest expert in the game. After all, he beat the game regularly in the Student Union during almost the entire year of 1967 (or whenever the hell it was).
The truth is that what David is is a nit. stud hi/lo with no restrictions is not a game that's often spread in cardrooms. When it does get spread it will be likely populated by people who don't know how to play hi/lo split games. Against that kind of opposition then all it takes to clean up is to be a nit. It doesn't take any more than that, against weak opponents being a nit is being an expert.
So whenever he gets a chance David will claim to be an expert at it. It's good for his reputation.
As far as David being a math genius. Well, that must have been a joke.
I actually like David. And I think he's written a couple of very good books. He's also written a couple of very bad books. And even his good ones have some major errors. David's not very well educated, he has some amazingly stupid beliefs (such as inbreading causes blindness and that autistic women have the mental capacity to give consent to sex with men 40 years older than them) but I still like him.
I'll still like him when he ends up in prison for statutory rape. But David's not actually an expert on much of anything and he's far from a math genius (his math skills are mostly computational). He does have some fun delusions though.