Get your rod and cone cells ready, this video from Tech Insider shows the fiendishly addictive color perception quiz that has been getting fingers clicking across the Internet.
It’s a 60-second round game called Kuku Kube where you have to identify the odd color out. But as you advance through the levels, the differences between the colors become progressively more subtly different.
Check out the video below and play Kuku Kube for yourself right here.