A puzzle with a hidden picture is a type of puzzle where you don't see the image before you start and while you are working on it. You may encounter tasks to complete puzzles with hidden pictures in quests.

To start a puzzle with a hidden picture, tap on "Play" under the task description in the "Quests" section. Also, you can access it through the mini-library by following these steps:

1. Tap on "Play" in the bottom right corner.

2. Tap the pictures on the left side.

3. Select a picture with a puzzle piece on the orange background.

4. Choose the desired puzzle complexity (24/35/70/140/280/630 pieces).

5. Tap on "Play" to begin.