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".
The Surrender of Breda, Diego Velázquez
Paul Signac, View of Venice
The Loom, Van Gogh
Virgin and Child with Canon van der Paele, Jan van Eyck