At first glance, this puzzle looks incredibly easy.

You see a grid of cute yellow chicks and your brain instantly jumps to the obvious answer: 9. But here’s the catch… that answer is wrong.

This viral brain teaser is designed to test your attention to detail, not your math skills.

Most people quickly count the visible chicks in rows and stop there. Our brains are wired to recognize patterns fast, especially when something looks symmetrical and simple. But that same speed is exactly what causes us to miss small hidden details.

If you look closely, one of the larger chicks is actually hiding a smaller chick inside or beside it. It blends in so well that many people completely overlook it on the first try.

That’s why the real answer is:

👉 10 chicks

This type of illusion works because of something called selective attention. When your brain believes it has already found the pattern, it stops searching for additional information.

In other words, you don’t see what’s there—you see what you expect.

Now go back and check again…

Did you catch the extra one the first time?