It's a rectangular parallelepiped that's so simple that it looks like a speaker at first glance. The size of the main body is 151 mm in length x 151 mm in width x 301 mm in height.

Move this rectangular parallelepiped. Move with the cursor keys, but be careful not to move to slide, but move to roll. If you drop it in the hole of the goal, clear it, drop it around and out.

In this paper, the expected distance between two uniformly distributed random points in a rectangle or in a rectangular parallelepiped is computed under three different metrics: the Manhattan metric, ...