Chimp Test

The Chimp Test is inspired by a famous experiment where chimpanzees outperformed humans at remembering number positions. Numbers appear, then disappear the moment you click 1 — recall the rest in order.

Play the Chimp Test

Why it's hard

It stresses spatial working memory under pressure. More numbers appear each round; three strikes end the run.

FAQ

Can humans beat chimps?

On the original task, young chimps were remarkably fast — this test lets you see how you compare.

What's a good chimp test score?

Reaching 9–12 numbers is strong.

Does the layout change?

Yes, positions and counts change every round.

ReactionLab brain games are for benchmarking and fun. They are not medical, neurological, or IQ assessments.