32/42 Warp Gates: 2 Stalkers, 1 Zealot or vice versa
40/50 Obserber
*Chorno
42/50 Pylon
42/50 Warp in units
50/58 Imortal
*Chrono twice
Chronoboost: x3 Nexus, rest on Warp Gate until completion. x1 on Observer, x2 on Immortal
Consider building your structures close to your Nexus. This is called a "sim-city" style, and can help with defense in the early game.
Spread Pylons throughout your base to fully utilize the ability to warp in units from your gateways to defend. Just make sure you don't leave critical buildings, like Gateways and Robotics Facilities, powered by a single Pylon.
The Immortal (Left) will be your dps and tank in the early game. The Observer (right) will save you from any cheesy play, like Dark Templar or cloaked Banshees.
An instructional video on how to execute the 3-Gate Robo, as well as other tips about gameplay for you newer players out there, can be found on Page 4, or on the Other VODs page.
If you would like to download a plain text version of this build, it is available right above. You may like it for reference on the next page, or while you are playing.