One player is "located" in Cincinnati, the other in San Francisco; they have identical maps of the United States and are to divide the country between them. Each is to draw a line dividing the United States into two parts; the line may be straight or curved, related or unrelated to physical or political landmarks. If the two of them divide the map differently, neither gets anything; but if they draw identical division lines on their maps, they are both rewarded. The reward for each player depends on what is contained in his piece after the division, that is, the piece that contains the city in which he is located.

DEFINE: This describes a pure coordination game where players must independently make identical decisions to succeed, with no communication.

Thomas C. Schelling, The Strategy of Conflict, loc. 234