US Patent 7766335 Board game with 3D dynamic game play

A board game incorporating multiple paths of travel which traverse a plurality of elevations with moveable obstacles that change the paths of travel. The moveable obstacles take the form of moveable structures; such as stairs; bridges and moveable-walls which cut-off some available paths while opening others. Through strategic use of the obstacles; players can facilitate their own movement through the game while impeding that of their opponents.