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".
Sunset on Mount Diablo, William Keith
The Census at Bethlehem, Pieter Bruegel the Elder
Young Woman Playing a Violin, Zurbarán
Coronation of Tsar Nicholas II of Russia, Valentin Serov