part of what makes optical puzzles so addictive.
They encourage attention to detail, pattern recognition and flexible thinking while turning an ordinary illustration into a miniature mystery.
Different people can also have completely different experiences with the same image.
One person might discover the pig almost immediately.
Another may stare at exactly the same picture for several minutes and see absolutely nothing.
Then, after receiving one tiny clue, the hidden animal suddenly becomes obvious.
That makes this puzzle perfect for challenging friends and family.
Show them the illustration without giving
