💻 PC recommended - This training requires precise clicking and is best experienced on desktop/laptop with a mouse.
⚡ Quick start: Watch a circle move across the screen, then it disappears. Click where it was when it vanished! It's like tracking a ball behind a wall. Press Space to pause anytime.
Press Space or click/tap to start
Session Summary
Recent Results
📖 Detailed instructions
Click the test area (or press Space) to begin.
A moving circle (or multiple circles if advanced mode) will appear and travel across the screen.
After a few seconds, the circle(s) will disappear behind an invisible barrier.
Click/tap where you predict the circle will reappear after the hide duration.
For multiple targets, click the closest one you can predict - the system will measure your error to the nearest target.
The closer your click to the actual position, the higher your score.
Press Space to pause/resume at any time.
Measures your ability to predict object motion - essential for sports, driving, and spatial awareness.
Lower average error (in pixels) indicates better predictive ability.