Ten questions. One sinking boat.
Here's a version of the reading section stripped down to the part that matters and put on a clock.
The Reading Leak is ten timed questions — words-in-context and short reasoning — and a boat that's taking on water: play it here. Get one wrong, or let the timer run out, and the boat springs a leak. Enough leaks and it goes down. The timer is the point: on the real test you don't get to sit on a hard question forever, and this makes you feel that.
The part worth the ten minutes is the end screen. It doesn't just tell you how many you got right. It breaks your leaks into three causes — vocabulary, pacing, and reasoning — so you walk away knowing which one actually sank you. Missing words you didn't know is a different problem from running out of time, which is a different problem from reading carefully and still choosing wrong. Each one has a different fix, and most score reports never separate them.
That breakdown is the same idea behind Forge's full diagnostic, shrunk to a game you can play on a phone in a spare ten minutes.
One takeaway: your reading problem is probably one of three specific things, and it's worth finding out which before you spend a month studying the wrong one.
Play at forgesat.com/games/reading-leak.html. It's free and needs no account. If you want the full version of that vocabulary-pacing-reasoning read across a whole section, the diagnostic does it, and that's free too — sign up and take it.
Forge is a beta, built by one developer who still teaches full-time. If the timer or the end screen does something strange, tell me and I'll fix it.