An extremely important aspect in StarCraft 2 which a lot of us forget is economy, in other words resource management. A bigger economy is usually the better one. Hence you have to have more harvesters, more expansions or both. The side which has most expansions usually ends up the winner. So if your enemy is expanding aggressively, you have to expand correspondingly, attack his mineral lines or counter-attack his expansion. Building more Probes, Drones and SCVs helps gain a definite edge in this case.
In StarCraft 2 strategy guide strategies usually vary from race to race. Terran players require the least resources and Zerg players the most. The Zerg can also produce multiple drones at the same time. Protoss need only the touch of a probe to build structures which is a big advantage. You can obtain most resources by saturating your mineral line. Also make sure that the resources are invested o form an effective army. Always try to keep the mineral levels as close to 0 as possible. This strategy guide gives you the secret to beating all your opponents which is the fact that the winner always has the maximum resources.

