Sokoban YASC (Yet Another Sokoban Clone) is a maddeningly simple game first conceived by Hiroyuki Imabayashi, a Japanese programmer. The word Sokoban means "warehouse keeper." Move the red crates to the designated storage spaces. The object of the game is to put all of the crates in your "warehouse" into the designated storage areas. Sounds easy, right? Well, there are a few restrictions:

• You are not allowed to pull crates, only push
• You cannot push more than one box at a time
• You cannot pass through a box or wall

These restrictions -- especially the first one -- turn a seemingly simple task into a delightfully difficult challenge.