Tang 2-Minute Tutorial: ZvZ Holding the 9-Pool All-In
Went for 16gas/15pool this game, opponent 9Pool/Drone Pull. Steps include starting an overlord asap and removing drones from gas. Then hotkeying all workers in control 1, starting Spines side-by-side in mineral line when pool finishes. Cancel spines that get focused down, while building Lings/Queen. Use your Drones to kite Zerglings or focus-fire his Spine. Engage with Lings and Drones until your Spines finish, then go back to mining.
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