The illustrations were featured in Dudás’ book of holiday brain teasers titled “Bear’s Merry Book of Hidden Things.” If this puzzle looks a little familiar, there’s a reason for that. In 2015, Dudás shared a puzzle of a panda among snowmen on Facebook.

Did you find it? Do you want a hint? This is your last chance to close the tab if you don’t want a hint. If you haven’t found the answer yet, don’t worry; we have it here. Others found the inaccuracy difficult to see, and I was one of the few who missed the tiny detail. When you see it, however, you’ll know immediately away from that something isn’t quite right!