The subreddit doesn’t allow images for some reason, so here’s a link to the image.

TL;DR

• If the Lakers win and the Suns beat both of Memphis and Portland, Lakers advance with Suns #2

• If the Lakers win with Suns losing either, Lakers advance with Jazz #2

• If the Jazz win with the Suns losing either, Jazz advance with Lakers #2

• If the Jazz win and Suns win both, we get a weird scenario where the point differential determines #1 and #2. The graphic helps break that down

There actually is a scenario where Portland can get in as #2, but that’s not in the graphic as it would require Lakers to beat Jazz and Portland to beat the Suns by 13-44 points or more (depending on the margins of the Lakers-Jazz game).