wanna repel a rush?
6 pool rush:
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zerg: 2-4 zerglings plus all your drones can quickly dispose of the enemy with little resistance. Create a few sunkens to prevent further annoyances
terran: one bunker filled with 2+ marines is enough (just repair it), otherwise, 1 rine and your workers
protoss: Probes alone are sufficient, but a zealot would reduce casulaties
12 muta swarm:
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zerg: mass hydras are your best solution, each spore colony greatly helps
terran: rines with stim and medics are all you need, turrets are worthless
protoss: Dragoons are great, but psi storm works wonders. Archons are the ultimate solution.
Marine and Medic rush (M&M)
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zerg: lurkers are the greatest way to dispose of these nusences, or else use sunkens. Use mass hydras if all else fails
terran: make your own M&Ms! Tanks kill the marines before medics can do anything
protoss: zealots and high templars are your best bet, you just need equal numbers
Zealot rush
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zerg: hydras can outrange, backed with sunkens and lurkers quickly dispose of this rush. Intercept with mutas if you get the chance
terran: M&M and/or tanks work. Bunkers backed by tanks at choke points can waste zealots if not micromanaged
protoss: Use dragoon dancing to kill zealots without taking any losses
offensive photons/bunkers:
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Siege units!!
offensive sunkens:
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have zerglings standing by... and rip them up before they can fully morph
anything else?