Reflexa
English

Chimp test

Start with four numbers and add one each time you succeed.

More tests

Why "chimp"?

The task became famous after a 2007 study by researchers at Kyoto University's Primate Research Institute, in which young chimpanzees remembered the positions of briefly shown numbers faster and more accurately than university students. This game is based on that task but does not reproduce the study's exact conditions.

Results stay in this browser. There are no global rankings or percentiles, and this is not a medical assessment.