Move Pieces Between Boards
Drag a puzzle piece from the right board to the left one to complete the puzzle.
Simply click and hold on a piece, then move it to the target board.
Rotate Puzzle Pieces
You can rotate a puzzle piece by using the mouse scroll wheel
or pressing the Q or W keys.
Flip a Piece
If a piece needs to be flipped, press the TAB, SHIFT or Z key to mirror it.
This allows you to fit pieces correctly in the puzzle.