NeuroSprint

About NeuroSprint

NeuroSprint is a short daily test of three quick mental skills. In Reaction you tap the instant the screen turns green, over five rounds. In Number Flash a string of digits appears and vanishes, and you type it back. In Sequence a set of pads lights up in order and you repeat it.

The whole sprint takes about two minutes. Because the day's challenge is seeded and the same for everyone in the world, scores can be compared fairly: you get a Brain Score, a Brain Age, a letter grade for each of the three skills and your percentile among the people who played that day. Results can be shared as an emoji grid, or sent as a challenge link so a friend faces exactly the same test.

There is no account, no install and no tracking; your history stays in your browser. A new sprint arrives at midnight UTC.

How to play NeuroSprint

1. Open NeuroSprint and press Start today's sprint.
2. Reaction: tap as soon as the screen turns green, five times.
3. Number Flash: memorise the digits before they vanish and type them back.
4. Sequence: watch the pads light up and repeat the order.
5. Read your Brain Score, grades and percentile, then share or send a challenge link.

Tips

• Play somewhere quiet and on a responsive screen: reaction times suffer from distractions and lag.
• Chunk the flashed digits into groups of two or three to hold more of them.
• Say a sequence quietly to yourself as it plays to repeat it more reliably.
• Compare your percentile over days rather than single scores: some days run harder.

Questions