Use arrow keys to move the camera or activate the joystick from the menu.
You can zoom from the menu or press keyboard keys "Q" and "A".
To change the number of pieces select the horizontal and vertical amount from the menu and then press "Create".
Valley of Mexico from Cerro de Santa Isabel, Velasco
The Adoration of the Shepherds, Giorgione
Portrait of the Court Jester Gonnella, Jean Fouquet