Board game apparatus

Game apparatus for simulating a spherical playing surface, comprising at least two substantially coplanar discs each defining a portion of a playing surface, the portion of the playing surface defined by each disc comprising a plurality of ranks disposed concentrically about a central pole and a plurality of files extending radially from the pole, so that the portion of the playing surface defined by each disc constitutes a projection of a hemispherical portion of a playing surface, two said hemispherical portions together simulating a spherical playing surface comprised of longitudinally aligned blocks and latitudinally aligned blocks, the poles of the hemispherical portions being mutually parallel, and the discs being disposed adjacent one another so that a block on one disc can be disposed in radially opposite relationship to a block on another disc with the two radially opposing blocks constituting longitudinally adjacent blocks of the simulated spherical playing surface, each disc being rotatable about its respective pole, and the discs being constrained for synchronous rotation in order to enable longitudinally adjacent blocks of the simulated spherical playing surface to be selectively positioned in said radially opposite relationship.