In addition to match-3 levels, the game also features puzzles. You can start a puzzle level by tapping the puzzle button on the main screen when it’s available:

A puzzle is a game where you must remove pins so that the right items fall into the container. To move a pin, simply tap it. There are several types of pins, each working differently.
If you get stuck with a puzzle, you can restart the level -- just don't give up!
Please note:
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Completing puzzles does not count toward most events and competitions.
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You can restart a level an unlimited number of times.