What This Trains
Working memory, attention control, processing speed, and the mental clarity behind fast in-game decisions.
A random number (1–9) appears. Press the matching key — or tap the button on mobile. React as fast as you can!
A random digit 1–9 appears on screen. Press the matching number key (or tap the on-screen button on mobile) as fast as possible. The test measures both reaction time and accuracy. You can use the on-screen numpad or the keyboard number row — no numpad required!
Working memory, attention control, processing speed, and the mental clarity behind fast in-game decisions.
Keep sessions brief and clean. Stop when accuracy falls, then review whether speed or precision caused the drop.