Havannah is an abstract strategy board game invented by Christian Freeling. It is best played on a base-10 hexagonal board, ten hexes (cells) to a side. Havannah belongs to the family of games commonly called connection games; its relatives include Hex and TwixT.
The game was published for a period in Germany by Ravensburger.
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One player plays as Black; the other plays as White. White starts, after which moves alternate. The rules are as follows:
An example of all three winning combinations is shown at right. The structure in the centre of the board is a ring; the structure on the left-hand side is a fork; the structure on the right-hand side is a bridge.
While draws are technically possible, in practice they are extremely rare. Tactics are much easier to master than strategy, and differences in playing level are considerable.
Although computers can play some abstract strategy games better than any human, the best Havannah-playing software to date plays quite weakly compared to human experts. In 2002 Freeling offered a prize of 1000 euros, available through 2012, for any computer program that could beat him in even one game of a ten-game match.