Protoss v Terran: 3 Gate Voidray

This Build relies on the element of surprise, where a hidden stargate throwing out voidrays combined with stalkers makes an all in attack on your terran opponents ramp. You should scout your opponents position on the map as well as their composition fairly early.

9 – Pylon
13 – Gateway
14 – Assimilator
16 – Pylon
17 – Cybernetics Core
18 – Assimilator
18 – Warp Gate Research
18 – Stalker

Chrono Boost Stalker and Warp Gate

23 – Proxy Pylon
24 – Proxy Stargate
26 – Sentry

Cut Probe production

28 – Gateway
28 – Gateway
28 – Void Ray

Chrono boost Void Ray twice

32 – Stalker
32 – Stalker
32 – Stalker

At this point continue rallying units into the attack unless the all in fails; if the attack didn't go as planned, fall back and try to regroup.

Protoss v Terran: 1 Gate Fast Expand

The key to this build is to scout using your stalkers as you are putting down your nexus, you should have scouted your opponent's position beforehand using a probe earlier on in order to determine the basics of the build they are going. 

9 – Pylon
Chrono Nexus
13 – Gateway
Chrono Nexus
14 – Assimilator
15 – Pylon
Chrono Nexus
17 – Cybernetics Core
18 – Zealot
22 – Warp Gate Research
22 – Stalker
Chrono Stalker
24 – Pylon
Chrono Stalker
26 – Stalker
30 –Cut probes
30 – Nexus
Push with stalkers up Terran's ramp

 The scouting information determines which path you continue with:

Marauder: 1 Barracks Tech Lab Fast Expand

30 – Gateway
30 – Gateway
30 – Assimilator
30 – Stalker
32 – Pylon
Resume probe production
34 – Robotics Facility

3+ Marines, no bunker or reactor already completed: 2 Barracks, Reactor + Tech Lab

30 – Stalker
Chrono Boost Stalker
32 – Gateway
32 – Gateway
32 – Pylon
32 – Stalker
Chrono Boost Stalker
34 – Assimilator
Resume probe production
35 – Robotics Facility

Bunker or reactor building: Many possibilities (including drops, 1/1/1 all-in, banshees)

30 – Gateway
30 – Gateway
30 – Robotics Facility
30 – Assimilator
Resume probe production, Chrono Boost Probes
31 – Pylon
Construct two observers before Immortals, unless you scout an immediate push