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How to Think Fast in 30-Second Estimation Rounds

A timed Plain Game round gives three free seconds and then costs four metres of altitude per second. Learn when to commit to an answer and when to wait.

October 23, 2026chaozicoder

Every timed round in Plain Game lasts 30 seconds, and thinking has a price. The first three seconds are free reading time. After that your plane descends at four metres per second, up to 108 metres over the round. This guide explains what that cost is worth, so you can decide how long a question deserves.

What the timer really costs

Altitude is points multiplied by ten, minus drift. The drift is small next to a good answer, as these examples show:

Time spentDrift (metres)Equivalent points
3 seconds00
10 seconds28about 3
20 seconds68about 7
30 seconds108about 11

Spending the whole round costs about 11 points of altitude. A better answer can be worth far more: moving from a factor-of-two miss to a 10% miss, for instance, is the difference between 25 and 83 base points. So the timer should push you to stop deliberating once your answer has stopped improving, not to answer carelessly in the first few seconds.

Remember that the game measures points and altitude separately. Your accuracy score is not reduced by the timer; only your final height is. The scoring page explains how the two relate.

A 30-second structure that works

  1. Seconds 0 to 3: read the question. Identify the unit, the category and whether it is a name round or a number round. This part is free.
  2. Seconds 3 to 10: set the scale. Decide the order of magnitude. If you are unsure whether the answer is in the hundreds or thousands, settle that before anything else, because that is where most points are lost.
  3. Seconds 10 to 20: refine with one reference point. Compare with one thing you know well and adjust once.
  4. Seconds 20 to 30: commit. Type your answer, check the unit and submit. Extra time rarely adds accuracy now.

For name rounds, type enough of the name to show suggestions and select one. The first recognised answer locks in, so check the spelling before you confirm. An answer the game does not recognise does not use your turn, but the clock keeps running.

When to wait and when to commit

Wait when a single piece of reasoning could change your answer by a large factor, such as deciding between a thousand and a million. A few extra seconds there are worth many points.

Commit when your remaining doubt is only about the last digits. Ratio scoring means a 10% error costs about 17 points, and every second past the free three costs about four metres. Polishing a number from 10% off to 5% off is not worth ten seconds.

If you truly know nothing, give a ratio-middle guess quickly rather than letting the clock run out. A timed-out round earns no points and still drifts.

Use untimed practice to build the habit

The pressure of a clock can hide what you actually know. Try the same kind of question in untimed Discovery mode first, then in a timed practice flight. The game modes guide shows how to choose a collection and pace. Discovery is also a good way to learn the unit conventions without drift.

Keep a simple log

After each flight, note which round you spent the most time on and whether the extra time helped. You may find a pattern: the long rounds are often the ones where they started from the wrong scale. Fixing the first step, as described in how to get better at estimation games, usually saves more time than typing faster.

Daily flights versus practice

The daily flight is timed and shared, so it is the right place to apply this structure. Practice flights let you rehearse it without affecting today's result. Whichever you choose, start at Plain Game and treat the first three seconds as your reading time.