Hitech chess: from master to senior master with no hardware change

Hitech is a chess computer program that has been the dominant force in computer chess from September 1985 to July 1988. During this time it has continued to use the same hardware and yet has improved its standing in the US chess community from being initially in the top 2% to its present top 0.5%. The author explains how this has been achieved, using better management of the resources that have been available.<>