RockSolver The RockSolver technology is based on a patent application by Malcolm Lambert and its intention is to introduce modern computer science techniques to the art of dry stone wall building. The principle of how RockSolver will work is that a computer first acquires the 3D shape of several rocks then in the virtual world it starts fitting the rocks to each other and to the shape of the structure to be built. When the software finds a rock to fit in the structure it outputs instructions to the builder as to the position and orientation of the rock. The RockSolver technique is applicable to structures built with rocks weighing several kilograms or several tonnes so could be used in the construction of buildings, retaining walls, sea walls, causeways and levees. It could be applied to structures built entirely with rock rubble (dry stone) or to stone and mortar structures. The RockSolver technology is in the research phase of its R&D.