Rush Hour (board game)
Rush Hour is a board game made by ThinkFun (formerly Binary Arts). The goal of the game is to get a red car out of a grid full of automobiles by moving the other vehicles out of its way. However, the cars and trucks obstructing your path are so intertwined that a typical puzzle requires many moves to complete.
ThinkFun sells additional puzzle card packs in addition to the 40 included with the game.