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Focus / DAY 009

Flash Count

Shapes blink in and out. Only one kind counts. How many did you see?

How to play
  1. 1

    You're shown one shape in one colour — that combination is your target.

  2. 2

    Shapes flash on and off. Count only the ones matching BOTH colour and shape.

  3. 3

    Type your count at the end. Off by more than one and you lose a life.

WHY IT WORKS

Why it works

Counting a feature combination forces you to check two things at once on every flash, which is far harder than tracking a single colour. It is a sustained attention task: one lapse and your running total is wrong, and unlike a puzzle you cannot go back and check.

FAQ

What round is good?

Round 4 is solid and round 6 is exceptional. By then the shapes come twice as fast and most of them are near-misses.

Why is it so much harder than counting one colour?

A single feature can pop out on its own. A combination cannot — you have to inspect each item, and that costs attention you'd rather spend on keeping count.

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