If you're interested in a little extra challenge, we recommend opening the Settings menu and tapping on the Piece Rotation option until it reads "Puzzle piece rotation ON"

Please note that if you start a new puzzle with this option ON, you cannot turn it off for that puzzle. To disable it, we recommend returning to the Settings menu and turning the feature OFF, then starting a new puzzle.

To rotate a puzzle piece, simply tap on the piece and it will rotate a quarter turn.