You can slow down your computer opponents mineral production. Just do the following. Send 3 of your 4 workers to gather minerals. Then build a worker. Send the worker that is doing nothing to the computer enemyís base. Attack one of the computerís workers. The computerís workers should start to attack your worker. Donít stay there too long. The computerís workers will kill your worker. Once you get the computerís wokers to attack, send your woker to different parts of the map. It will lead the computers on a wild goose chase. It will slow down the computerís mineral production. If you also have a human opponent, you can send the computerís workers to your human enemy. The computer workers will attack your human opponents base. It will disturb your human opponent.