Focus · Step 03

Task-Switching Drill

Sort cards by a rule that keeps changing — colour, then shape, then number — every few correct answers. Inspired by the Wisconsin Card Sorting Test, this drill trains cognitive flexibility and the ability to switch mental gears.

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Free · No signup · Runs in your browser · Nothing is stored

How it works

  1. 1Sort each card according to the current rule.
  2. 2After several correct answers, the rule silently changes.
  3. 3Detect the new rule from feedback and adapt quickly.
  4. 4Keep up as colour, shape, and number rules rotate.

Benefits

  • Trains cognitive flexibility and set-shifting
  • Strengthens executive function under changing demands
  • Improves your ability to detect and adapt to new rules
  • A brisk, engaging mental warm-up

The science

The Wisconsin Card Sorting Test is a classic measure of set-shifting and executive function. Practising rule changes exercises the prefrontal processes behind flexible, adaptive thinking.

Frequently asked questions

What is cognitive flexibility?

Cognitive flexibility is the ability to shift between tasks, rules, or perspectives. It is a core executive function that supports adapting to change and solving problems.

Ready to try it?

Takes just a few minutes — no signup required.

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