Closest Guess

Estimate the answer to five numeric questions, from the height of Everest to the number of bones in your hand. Move the slider or type a number, lock it in and see how close you got.

Your progress is saved in this browser.

How to play

Each run has five questions with numeric answers. Move the slider or type a number, then choose Lock in guess. A guess cannot be changed once locked in.
The slider is logarithmic, so each step multiplies the value. That makes it practical to guess anything from tens to billions.
Each question scores up to 100 points. Guessing double or half the answer scores 70, and a guess ten times too high or too low scores nothing. Over- and under-guessing score the same.
After each guess you see the true answer, how far off you were and a short fact. A run totals up to 500 points.
There is no timer. Your run is saved in this browser when storage is available, and your personal best is kept separately. New run asks for confirmation if you are partway through one.
Share result opens your device’s share sheet or copies a coloured score row and the game link. Play again starts five new questions.

Questions

How is Closest Guess scored?

Each question is worth up to 100 points. The score depends on the ratio between your guess and the answer, so guessing double and guessing half are equally far off. A ratio of 10 or more scores zero.

Why is the slider logarithmic?

The answers range from dozens to billions. A logarithmic slider lets each step multiply the value, so the same movement covers a small number range at the low end and a huge range at the high end.

Is there a timer or leaderboard?

No. Closest Guess is untimed. Your run and personal best are kept in this browser, and there is no public leaderboard.

Strategy guide

Closest Guess Tips and Strategy — Estimate better in Trindo’s Closest Guess: anchor on facts you know, think in factors rather than differences and use the log slider to score more points.