Game of the Amazons

A Cocoa frontend for Game of the Amazons using the Amazons library. Inspired by this Numberphile video. Rules Two players move Amazons on a board. The Amazons can move any number of squares in any direction, like queens in chess. After moving, Amazons must shoot an arrow (or, in this implementation, a spear). The arrow can also move in any direction. Amazons and arrows cannot move across squares that are already occupied by another Amazon or arrow. The last player able to make a legal move wins....