Number Flash
Memorize the number before it disappears, then type it back. Each successful round adds another digit.
How many digits can you hold?
You start with four digits. The number disappears quickly, and one mistake ends the run.
Run complete My Lab →
How to play
The number is shown briefly and then hidden. Enter the exact digits in the same order. Display time stays deliberately short, increasing only slightly for longer numbers.
For entertainment and memory practice, not a standardized cognitive or medical assessment.