Switchboard (1966)

The playing surface consists of 36 tiles laid out numerically to form a square. Each tile contains spots which form a pathway; some form straight paths, some are angled paths and some form crossroads. As players advance their tokens along the paths, they also move the tiles in an attempt to bottle up opponents while building the shortest possible path to the Finish for themselves. Thus, the pathway is continuously shifting, branching out, and breaking into segments.

Also published in 1965 as a promotional game for Culligan, title "Hey, Culligan Man!".