Starting from version 1.10.0 you can use different boosts while completing the puzzles. Please note that the boosts are available only on iPad, but not on iPhone devices.
Click on the Menu in the bottom right corner to activate the boosts.
See the list below:
1) The Miracle magnet allows you to automatically join two puzzle pieces together, it can be used only for 42 and 72 levels of difficulty
2)The Miracle frame button allows you to choose only the edge puzzle pieces
3) This button opens the preview image of the puzzle
4) The Miracle hint button sets the puzzle preview as a background image, so you can easily complete the picture
1) This Magical line button allows you to automatically complete any horizontal line of the puzzle
2) This Magical line button allows you to automatically complete any vertical line of the puzzle
3) The Square button allows to choose any 3x3 square on the game board and it will automatically complete.
Please note that those 3 boosts are available only on 288 and 550 levels of difficulty.
Boosts can be purchased with coins or by watching videos, click on the plus sign next to the boost you would like to buy when no such boost left.