Zerg - 6 pool

The Zergs 6 pool is called a 6 pool because you basically use the 6 drones that you start with and get a spawning pool then start producing zerglings.
This build is generally used in the lower bronze leagues because this involves scouting and being about to react to the build.
However this build can also be used in the higher leagues in 4 player maps, the reason why it is used in 4 player maps is because if it is the last or even second last spawn your opponent scouts the opponent will not have enough time to react.

The build goes like this:

1. Move 6 drone to the mineral patch
2. Wait until you get 200 minerals then build a spawning pool
3. Build a overlord
4. The second the spawning pool finishes queue the zerglings right to the opponents base.
5. Keep building zerglings
6. Build a queen if needed
7. Wait for the opponent to say "GG"

If this build fails it can be almost impossible to re-macro out of the build if you have not dealt enough damage.
If you can not break the opponents wall start building drones.

I hope this build helps some people (: