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 Colossus, Francisco de Goya
View of Assisi, Carl Blechen
Mereville, Flock of Lambs, Maximilien Luce
Napoleon on the Battlefield of Eylau, Antoine-Jean Gros