Toroidal Go Board
Go is one of the oldest board games, which has been played in pretty nearly its current form for 4000 years. Despite the long history, it's still possible to think of a new twist. At the left is a "standard" 19x19 Go board constructed by Ken Clements, in the shape of a torus. Each intersection of the wire frame is welded, and each bead (stone) is cross cut so it can be stuck to an intersection of the board. This is the obvious solution for those who don't have the patience to study corner Joseki.