HAVANNAH  

Copyright (c) 1980 Christian Freeling

The game starts at an empty 10x10 hexagonal board:

 

MOVE - Players move in turn to place one stone on an empty cell. White moves first. GOAL - The game is won by the first player to complete a ring or a bridge or a fork. All of these are ``chains'' - closed connections of one color. A ring is a chain around at least one cell. A bridge is a chain linking two corners. A fork is a chain linking three sides. Corners do not belong to sides.

 

An example White can win if he plays at [1], since Black cannot avoid the double ring threat.

You can also play and read extensive information about the game at the MindSports Arena.

Here's the article about the game in Games and Puzzles #79: