How to play match-3 levels?

You receive match-3 levels from other characters in the game. To finish these levels you need to complete different tasks (you can see them in the left part of the game screen).
Here are basic level completion rules:
- match three or more pieces of the same colour;
- overcome the obstacles on the level (check "Match-3 elements" article);
- match pieces into combinations of special shapes to receive bonuses, use boosters and pet abilities to complete levels;
- each level has limited number of moves, so spend them wisely;
- you receive coins and apples for level completion and you receive more coins for unused moves.