1: Uncover the mysterious old woman hidden in a 19th-century portrait in just 6 seconds.

2: Zoom in and search for clues in the detailed brushstrokes of the girl's dress.

3: Look closely at the background to spot the old woman's clever disguise.

4: Time is ticking - can you spot the old woman before the clock runs out?

5: Test your observation skills with this challenging art puzzle.

6: Discover the hidden story behind this intriguing double portrait.

7: Explore the secrets of this historic painting in a new interactive way.

8: Challenge your friends to see who can find the old woman the fastest.

9: Unlock the mystery of the old woman in the 19th-century girl portrait.