Sokoban is a type of transport puzzle, in which the player pushes boxes or crates around in a warehouse, trying to get them to storage locations. The puzzle is usually implemented as a video game.

Sokoban was created in 1981 by Hiroyuki Imabayashi, and published in 1982 by Thinking Rabbit, a software house based in Takarazuka, Japan.

See Also: https://en.wikipedia.org/wiki/Sokoban
Video: http://www.youtube.com/watch?v=b0xLP9I6ZM0