The basic idea is that you get four gateways with Warp Gate tech ASAP. Bring a probe or two to their base as your last gateway is halfway done and build pylons around their base.
Your initial goal is to cripple their economy and then potentially cripple them. By warping zealots into their mineral line, you'll absolutely devastate their ability to produce counters. After producing zealots, stalkers might come in handy for taking out enemy zealots/stalkers.
Stalkers should kill zealots, but this requires micro. If you're interested in learning how to micro stalkers, please consult this video.
Check out the rest of the article after the jump.
