To be honest, first time I heard and seen this stuff was at TeamLiquid.net forum post or to be precise - on Liquipedia. Fire up your favorite Starcraft: Brood War replay and try these out: /replay ...

Also, the standard 1vs1 maps where you have different stages for micro training where the one with most won stages wins. The zip-package includes these maps: The maps are .scx mode and may therefore ...