How it scores

Every question has a real number as its answer. You don’t give the number — you give a range you believe it falls inside.

• Narrow + hitFull points. You knew it, and you knew that you knew it.
• Wide + hitFew points. Safe, and worth about as much as you'd expect.
• Any missNothing. A confident narrow range that misses scores exactly the same as a wild one.

Why it works: nobody in operations knows the exact number. What separates people is whether they know how much they don’t know. “Between 40 and 60” from someone genuinely unsure is a better answer than a flat “50” — and no quiz can tell those apart. This can.

Set up

Questions are dealt in a different order every game, and none repeats until the pool runs out.

Start