Starcraft – Why was Supernova paired against JaeDong in Battlegrounds Detroit

It sounds like you're building a large army and using it to gain map control, but then are falling prey to things like drops and backdooring.

If you have map control your first thought should never be: Crush my opponent, as you're essentially sacrificing an advantage (map control) for an unsure victory (because he doesn't control the map doesn't mean he can't take you). Instead your thought should be: take the map. I think you'll find this change in philosophy will lead to situations where you have a much more powerful economy than him and you're able to kill him with attrition.

Now if you're falling prey to things like BD here is a quick check list for you:

• Are you scouting? an Observer should be the first thing you build out of Robo. If you don't go Robo, a Hallucination works just as well. Sometimes scouting means sacrificing some Zealots in a pointless charge to just get inside his base.
• If you're scouting, are you seeing it coming? Overlords on the edge of your base, Starport with Reactor + 3 Rax, all of these are indicative of certain strategies you should watch out for.
• If you see it coming, how are you responding? If you have map control that means you should be able to respond quickly. Shutting down these back door attempts is often a bigger victory than a straight up conflict
• Finally, Do you have map control? If you don't have map control that means he does, and if he's beating you with map control then your problem is not "how do I deal with a base trade?" but rather, how do I regain the advantage.

Forgive me for the quality of this answer I'm on the road.

Unlike a lot of people I really feel that using drones for defense as Zerg is a completely legitimate strategy. Zerg is very much a momentum race, so many top players strategy revolves around: Power drones and build units at the last possible second. Unlike Terran or Protoss, Zerg can produce a very large army very quickly so I feel using your Drones to delay is a fairly legitimate strategy.

However, I dislike opinions, even my own, so let's see this strategy in practice:

This first video is from a pair of Plat level players. You'll notice that by pulling drones off the mineral line he's able to get a very easy surround (which whoever this caster is doesn't seem to understand) and really take them apart with few losses (believe he loses 3 Drones). This delays the 10 pool long enough for his Spine Crawler to get up and really defend him well. The key point I want you to take away here is: Drones can do Damage

This next video shows a Zerg defending against a 2 Gate back in beta (when Zealots were 5 seconds faster). The Zerg player here completely misses on his scouting. Notice how the Zealots are forced back every time he pulls all his Dones, but when he only sends in a few (or the Queen alone) he gets eaten apart. Drones are only really strong in numbers and when they can get a surround (much like Zerglings). The thing he does do well is sending his drones back to mine every time the Zealots back off. This is the second key point: If you're not fighting, you need to be mining. Pulling drones is fine, but don't leave them lying around

This third video is a little more high level. I actually saw this match live and Blizzcon and the experience was exhilarating. Cool here is defending an early Bunker rush by Boxer. He immediately pulls 3 Drones (1 from scouting) to take out the Bunker. Boxer shows some impressive micro and manages to get the Bunker up and a Reaper inside... just in time to get destroyed by Zerglings. This is the third main point: Drones are delaying tactic, you are using them to stall until real units can get out.

This last video is your money video because its exactly what you're dealing with: 7 Pool into Spine Crawler Rush. We see here that the defending player really shows knowledge of all the principles we talked about. When he sees the Spine Crawlers he pulls a large amount of Drones off the mineral line, forcing repeated cancels (every cancel costs 25 minerals). Next when Zerglings come he uses the mineral trick and then backs out into the open to get a good surround on them and really take them down quickly. Finally, all of his actions are a delaying tactic so he can get his Zerglings out.

So what have we learned:

1. Drones can do Damage. Try to get a good surround, preferably out in the open where he can't use buildings to block you
2. When you're not fighting, you need to be mining. When your Zerglings finally pop and you start winning you need to back off and secure your economy
3. Drones are a Delaying action. Zerg is a momentum race and you're just using your Drones to delay until you have enough momentum to win.

FAQ

But Tzenes, what if he just backs off and powers Drones and has a larger economy than me?

Omnes non possunt omnis. To pull off this rush he is making a large sacrifice, this means you have a lot of room to breath. Worry less about him backing off and more about repelling the rush. By the same token, as soon as the rush is countered, stop producing Zerglings. Chances are he can't afford a second rush, so building a lot of units here is just letting him catch up.