[DemisodaSPR]

(A) Ensure it's 12 rax. 12 rax finishes @ 2:38.
(B) Ensure his OC starts @ 2:38. 2:45+ OC usually means proxy rax OR retardation. You can deduce which it is through (C).
(C) When he makes his OC @ 2:38, count SCVs mining. FOURTEEN. Easy way to count is to assume there's 8 already on there (1 on each patch), and simply count the number of patches than have TWO. Add this number to 8, and this is how many he has mining. 13 = proxy (IF he's not scouting. IF he's scouting 13 = 1 rax), 14 = 1 rax.
IF he's OC @ 2:38 and 13 SCVs and no scout, he's 12/14 proxy.
IF he's no OC @ 2:38, 12-13 SCVs then he's a much more all in 2 rax (assuming no OC in the next 5 seconds)... 11/11 11/12 12/12 whatever something like this. This alteration of his 2 rax range is actually quite important for ZvT and you probably want to get a 16 overlord instead of a 17 overlord. I don't know how it will affect PvT, but at least you know % chance SCV pull is higher.
(D) Poke his ramp at 3:06. But first when your probe enters his base and his rax finishes at 2:38, make sure his marine is queued literally as soon as the rax finishes to ensure that 3:06 is consistent. The marine actually pops out a bit earlier than 3:05 beacuse it takes 0:25. What you're doing is checking for 1 marine, as if it's just 1 marine 12 rax 16 CC is a huge part of his range. It can still be some 4 rax shenanigans, but the range is heavily weighted to 1 rax CC if he's just make 1 marine (due to the different permutations of many rax builds & the effect of this on his probability distribution).

As Toss i don't know how much of the above you need to know. But I hope you can now begin to empathize with the plight of zergs in ZvT.. and this is just a small slice of no-gas first 3 minutes T.T

Derp

Originally Posted by TAyang

Exactly, at the end of the day, you need to be prepared for an allin but if he just delays his orbital and gas to try to throw you off then he's putting you ahead.

no OC @ 2:38 and 14 SCVs mining, or 13SCVs mining with a SCV scout, and he's not proxy. He's just pure retardation!

Quick Comments

Maynarde:

Good post with alot of timings. Started reading @ 2:08 and finished @ 2:10