Build order: zvp speedling rush

Might want to describe the extractor trick for the less experienced readers. Or make a guide about it and link to it.

When your opponent realizes you are going all in zergling, he'll make a bunker in his main. I suggest timing an overlord to drop creep around his command center. The marines will most likely try and target it, which might provide less defence at his choke for your lings to break through. Even better if he's fast expanding, cause you can just drop creep at his natural to slow it down.