Show HN: Test your memory against Ayumu, chimpanzee

I made a free iOS game where you can see if your memory is as good as a chimpanzees. Spoiler: probably not.

Many of you will have seen the cognitive feats of the chimpanzee Ayumu, in particular this video which went viral a decade ago: https://youtu.be/JkNV0rSndJ0

Impressively, he memorizes the positions of 9 randomly placed numbers after seeing them for less than a second.

Back in 2014, I saw the videos and went to visit the lab outside Kyoto where Ayumu and his chimpanzee colleagues lived. The place was amazing, professor Tetsuro Matsuzawa who headed the experiments was extremely friendly and showed me around. The animals had plenty of trees to climb, and participated in the cognitive experiments voluntarily - bribed with raisins and small pieces of fruit.

Getting back home I wrote my first app, based on the most famous experiment - it took me 3 months to first learn to program but the app turned out well and was featured in some countries. It was eventually removed from the AppStore, and last week we had a little hackathon at my startup and rewrote it using SwiftUI, the result can be downloaded on http://greatapegame.com

So far, the best time I've seen is 1.5 seconds on level 9 (nine numbers), perhaps someone can beat it?

Another interesting clip from the institute can be found here: https://youtu.be/zsXP8qeFF6A