Thanks. I had thought about a sudden-death quiz about celestial bodies a few weeks ago, but I didn't like how it'd work in the format. Then replying to someone on the message board, I mentioned the Russian roulette style of sudden death, with only a few wrong answers. The Solar System turns out to work pretty well with that concept, I think.
https://www.jetpunk.com/user-quizzes/1744710/russian-quiz-game
and put lilliputian in there