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".
Strolling players, Francisco de Goya
Mount Stephen, Robert Bevan
Eruption of Vesuvius, Johan Christian Dahl
The Calling of the Apostles Peter and Andrew, Duccio
The Battle of Alexander at Issus, Albrecht Altdorfer