Note: Build order is not everything. This deals with 4 gate or close so if you scout anything else this may not be the build you want.
Hi ppl. this is a build i have developed to defend 4 gate (if someone else came up with this before please let me know:D) and in fact it is quite versatile even if your opponent is not 4 gate. You are not sacrificing economy is anyway for this to work.
Build order v1:
9 pylon
13 gateway
15 gas
16 pylon
17 cybernetic Core
18 gateway
19 zealot
22 pylon
23 stalker
26 gas
26 sentry (cb)
29 pylon
29 zealot (cb)
33 stalker (cb)
34 robo or twilight concil or stargate (not sure if this is a good idea though).
In the replays you will see i have made several minute changes to the build order. Rmb build orders are dead, but players aren't.
At ~5.29 you will have 5 units - 2 zealot 2 stalker sentry. After your opponent warp in 4 zealot above your ramp. you will warped in 2 more zealot to defend that.
In no way am I saying this build will stop all 4 gates. But i feel that it has a good transition out of it and safe against the 4 zealot warp-in-over-the-ramp strategy. Though i knew my friend was 4 gating before hand,I believe with scouting that would be obvious too.
Advantages
1. Tech faster safely
Disadvantages
1. Very little room for error
Please discuss and give any comment:D
Practise game with my friend who excuted a near 'perfect' 4 gate.
http://www.sc2replayed.com/replays/126548-1v1-protoss-xelnaga-caverns
A close game with Blitz 2.5k D Protoss who excusted a 4 gate after 2 warp-ins
http://www.gamereplays.org/starcraft2/replays.php?game=33&show=details&id=180790#/replay_overview
After defending a 4 gate, opp went robo while i go blink stalker. could have lost the game. This make me rethink my tech path (robo seem to be a safer/solid transtion while SG looks viable as most ppl go robo after failed 4 gate).
http://www.gamereplays.org/starcraft2/replays.php?game=33&show=details&id=180794
A game when i lost because of crucial mistake (usage of FF) Blitz again.
http://www.gamereplays.org/starcraft2/replays.php?game=33&show=details&id=180792
These are ladder games (other than the friend). Will upload more as i play more pvp.