Rule Switch Challenge
Switch between identifying an ink color and reading a color word.
Play Rule Switch Challenge
Follow the COLOR or WORD instruction on each round and select the correct answer.
How to use Rule Switch Challenge
Follow the COLOR or WORD instruction on each round and select the correct answer. All gameplay and calculations run in the browser; there is no mandatory account, game API or score upload.
What this challenge measures
Correct answers out of twelve rule changes. This result describes performance in this specific exercise; it should not be interpreted as a population ranking.
How to improve with practice
Repeat attempts under similar conditions, compare with your own recent sessions, and favor consistent accuracy over isolated personal records. For fair comparisons keep the same browser, input method and device when possible.
Accuracy and limitations
This is a recreational attention task, not a diagnostic assessment. Paused tabs, varying display refresh rates and browser scheduling can also affect time-sensitive exercises. Browser-local history can be cleared by the visitor at any time.
Frequently asked questions
Is Rule Switch Challenge free?
Yes. You can use it without signing in or paying.
How do I use Rule Switch Challenge?
Follow the COLOR or WORD instruction on each round and select the correct answer.
What does Rule Switch Challenge report?
Correct answers out of twelve rule changes.
Are scores scientifically or medically certified?
No. This is a recreational attention task, not a diagnostic assessment.
Related practice tools
Match a randomly presented arrow direction as quickly and accurately as possible.
Play free →Release Reaction TestMeasure the delay between a green signal and releasing a held input.
Play free →False Start Reflex LadderPractice waiting through unpredictable signal delays without guessing early.
Play free →