im playing protos 2vs2 and I have no clue how to defend against a zergrush... nomatter how fast I get zealots I can only have 1 when they show up with 6 lings... its not that big a problem when its 1 zerg.... but when they have 2 zergs I really have no clue how to defend if my mate is not a zerg... I've tried blocking the entrance - didnt work... what do you do?
Think of it like this: to execute that rush the Zerg player sacrifices economy by not creating (many) drones. They're weak in harvesters and strong in offence, and you are weak in offence and strong in harvesters. Hence you need to match that by pulling off probes.
That's all fine and good but wont mean anything if he doesn't survive the first rush. I guess you should put up a forge and cannon as fast as you can if you go up against zerg, just to be sure. It's going to hurt your eco a bit but it's better than risking defeat.
One zergling rush can be defended by zealots. Two zergling rushes can only be defended by cannons. Plan your build order accordingly. Two zerg=build cannons to survive. Don't waste any time. Anticipate the rush even if it hurts your economy a bit!