This is a great challenge! Optical illusions and “spot the difference” puzzles are especially popular with cats, because their shapes and colors can be quite confusing in repeating patterns.
To solve the puzzle, try to focus on these details:
Eyes: Does one of the cats have different colored eyes or is it looking in a different direction?
Ears: Is one of the cats missing a piece of an ear or does one of them have one folded down?
Whiskers and paws: Are all cats symmetrical?
Tail: Is there a tail that belongs to someone else hiding in the background?
If you can’t find the “different” one, try dividing the picture into quadrants (quarters) and going through it row by row, like reading a book.
Have you found it yet? Write down which part of the picture it’s hiding in! (For example: “Third row, second column from the left”