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 Battle of Alexander at Issus, Albrecht Altdorfer
Apple Beach, José Malhoa
Evening bell at Mii Temple, Utagawa Hiroshige
Mona Lisa, Leonardo da Vinci
A Sunday Afternoon on the Island of La Grande Jatte, Seurat