alienvspredator

Effort made poor use of his early zerglings and let Flash skip turrets, to increase the pressure in a very sensitive transition for Effort, pressure which he didn't have the economy to withstand at that point. Well played by Flash. But too bad it's such a short game.

a pre-lurker timing attack and everything ends

Flash didn't "skip" turrets, that's part of the build (late turrets). T uses early pressure with 3 rax to keep the mutalisks off his own base, and this comes at the cost of not building turrets in time. This was used frequently in FS by Flash.