(Chrono Probes when complete)
(Chrono Probes again)
(harvest with 2 Probes each)
(dont get Supply capped and do a Proxy Pylon to warp in immediately when Warpgate Research finish)
(Chrono 3 to 4 times)
(move out to proxy pylon)
(first warp in cycle at proxy pylon)
Its a Variation of the standard 4gate build.
You do 2 Assimilators and harvest with 4 probes to get the extra bit of Gas.
So you can warp in 4 Stalkers more often.
If its good or not obviously depends on what you opponent does.