Protoss v Protoss: 2 Gateway Blink Expand

This is a very safe build which enables a fairly quick natural expansion as well as a strong army composition which can be changed easily if required. Blink allows for reckless scouting and harassing with your early stalkers before your opponent has anything to deal with them.

9 - Pylon
13 - Gateway
14 - Gas
16 - Pylon
17 - Cybernetics core
20 - Gateway
20 - Gas

Cybernetics core complete, get warp gate technology and a stalker out right away and chrono boost them both

23 - Pylon

When the second gateway completes make two stalkers

Twilight council as soon as possible

2 more stalkers then when you can afford blink technology out of the twilight council chrono boost it

When warp gate completes warp in two stalkers. You should be scouting with the stalkers you have out now to see your opponent's army composition. There are several possibilities you can encounter.

Plant down your natural nexus followed by an additional warp in of stalkers or sentries depending on the composition you scout and 2 additional gateways. There are a couple of dangerous builds your opponent can do to be aggressive against this build, here is the appropriate response to the most common:

4 Gate:

Around the time your 5th stalker is coming out the 4 gate should be hitting, with correct micro and probe pulling if necessary it should be fairly easy to hold. Good scouting information and looking for forward pylons your opponent places near your base with the stalkers you have out is a good strategy against the 4 gate.

Dark Templar:

This build does not incorporate a forge or a robotics facility so dark templars present a difficult challenge. The only way to deal with a dark templar build is to scout your opponent to check for any technology which would indicate dark templars such as 2 early gases, early twilight council and of course the dark shrine itself. If you think your opponent is going for dark templars it is wise to forgo extra units and gatways in favor of a robotics facility for an observer.

Robotics Facility:

If you spot a robotics facility when poking up into your opponent's base with your early (blink) stalkers your opponent will want to push out with either immortals or colossi, keep several stalkers around their base to scout them moving out and continue producing stalkers. Eventually you will want to transition into immortals and/or colossi of your own.

Protoss v Protoss: 4 Gateway Rush (4 Gate)

This is a very old aggressive build which can be used in all matchups. This build utilizes very quick warp gate technology combined with 4 early gateways off one base in order to attack with a large number of units early on and sustain the attack using a proxy pylon warping units near your opponent's base.

9 - Pylon
11- Gateway
14 - Gas
14 - Pylon
15 - Cybernetics core

Scout with the probe that builds the cybernetics core.Check for proxy pylons and then the position of your opponent's base and what build they are going

16 - Zealot
20 - Warp Gate research

Constantly chrono boost your warp gate research till it is completed

20 - Stalker
23 - 4 Gateways

At this point you want to constantly push out units, warp in as many stalkers as you can until you run out of gas and only make zealots when you are low on gas. Chrono boost your warp gates when you have a chance for faster warp ins and do not miss any warp ins. Put pylons in and around your opponent's base for warp in reinforcements.

Protoss v Protoss: Agressive 3 Gate

This is a very aggressive attack oriented protoss opener focusing on hitting an early attack with one zealot and 4 stalkers. You need to place a good proxy pylon early on in order to have good reinforcement warp ins.

9 – Pylon
Chrono boost probes twice.
11 – Gateway
14 – Assimilator
15 – Pylon
15 – Cybernetics core
16 – Zealot
18 – Warp gate
18 – Stalker
Chrono boost warp gate continuously
23 – Assimilator
23 – Gateway x2
24 – Pylon
Move out with zealot, stalker & probe
25 – Stalker
Cut Probe production
26 – Stalker x3 at proxy pylon

From here attack and continue warping units to support at your proxy pylon. If the attack fails or you are forced to fall back you may want to invest in some tech such as a robotics facility or blink at a twilight council. You may also want to expand or add additional gateways depending on how the initial attack went.

Protoss v Protoss: Three Stalker Rush

This is a good defensive protoss opener build which allows for three early stalkers to hunt for offensive pylons and deny scouting while gathering scouting information of your own. Though weak to aggressive 4-gate style builds it is very flexible and allows for many different builds to follow.

9 – Pylon
Chrono Boost probes twice
12 – Gateway
14 – Assimilator
15 – Pylon
17 – Cybernetics Core
19 – Gateway
20 – Assimilator
20 – Stalker
22 – Warp Gate
Chrono Boost warp gate research twice
23 – Pylon
25 – Stalker x2

Send stalkers to scout, sniping probe and stopping pylons

Following this you may want to add one or two additional gateways, twilight council for blink or a robotics facility. You will eventually want to get your second up, depending on the timing of your opponent's natural nexus you may want to get aggressive or build a natural of your own.