of which the show

[Maybo]

Going into Episode 10, Squid Game: The Challenge is down to its final three contestants after starting off with 456 contenders, of which the show opted to focus on a select group.

Does “which” refer to “456 contenders”?
Does the sentence mean “the show opted to focus on a select group of 456 contenders”?


Source: Squid Game: The Challenge Episode 10 Release Date & Remaining Schedule by Sam Hargrave

 

[Tarheel]

Yes. They chose to focus on just a few of them.

 

[emsr2d2]

Probably when they get down to four or five they give them all more or less equal attention.

As the original post says, they're already down to just three contestants.