Estimation Gym
One question a day in each, the same one for everyone.
One question a day in each, the same one for everyone.
Estimation Gym is moving
This address keeps working for now, but the app is moving to estimationgym.app. Nothing comes across on its own, because a browser keeps each address’s data separate.
Streak 0 · Best 0
Fermi Questions
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Use a hint?
It halves today’s points. It tells you how to attack the problem without giving anything away about the answer, and it never breaks your streak.
Hold on.
Practice
Paste a history you copied from another device. Days already on this device are kept as they are, so this can only add days back.
Good questions can be reasoned out from things you roughly know, rather than recalled. Every suggestion is checked by hand before it can appear, so an answer and a source are both needed.
Free software — source code (AGPL-3.0)