A labyrinth in Runescape
Here is a labyrinth. In the labyrinth is an ice, you cannot walk, can only ski, which direction clicks on toward where to slide (has East, West, South and North, Northeast, northwest, southeast, the southwest 8 sides). Bumps into the icicle or the wall, the ice stone may stop. Bumps into the flat land to be possible to stand in above (bumps into the icicle to stop can only walk toward other directions, on the flat land may walk toward each kind of Runescape Gold, ices the stone to be possible not to push toward the thing direction, retards bumps into the object to stop, you will not move.