🧠Cerebite

Chimp Test

Click the numbers in ascending order. After you click 1, the rest turn blank — keep going from memory. 3 lives.

 

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Numbers
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Lives
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Best

Why is it called the chimp test?

In a famous 2007 study at Kyoto University, young chimpanzees — most famously one named Ayumu — saw numbers flash on a screen for a fraction of a second and still tapped their locations in perfect order, beating university students at the same task. This test recreates that setup: numbers appear, you click 1, everything else goes blank, and you must finish the sequence from spatial memory alone. Each success adds one number; a mistake costs a life and reshuffles the board. It measures visuospatial working memory capacity.

Frequently asked questions

What is a good chimp test score?
Most people manage 7–9 numbers. 10+ is above average, and 13+ is exceptional. The chimpanzee Ayumu handled 9 numerals flashed for a fraction of a second — with near-perfect accuracy.
Did a chimpanzee really beat humans at this?
Yes — in Matsuzawa's 2007 Kyoto University study, young chimps outperformed university students at remembering briefly flashed number positions. One hypothesis is a trade-off: humans may have given up some raw photographic memory as language evolved.
How is this different from the visual memory test?
The visual memory test asks which tiles lit up (positions only); the chimp test also demands the order, binding each position to a number. Holding position + sequence together is what makes it harder — and what made Ayumu famous.