Ask HN: Optimal way to prepare for standardized exams? Can games help?

Standardized exams are some mix of memorizing and problem solving.

For memorizing, spaced repetition comes to mind.

"Explain it out loud" can help with identifying gaps in understanding.

What other strategies do people use?

Can games help us digest new content? Any cool examples? (domain does not matter!)

What's the latest thinking on rapid/effective learning?