3x3x3 Multi-Blind

3x3x3 Multi-Bld (MultiBLD) is a WCA event where you memorize the most cubes that you can and then solve all of them blindfolded under an hour. A common technique that MultiBLDer's use to memorize so many cubes is a method called Roman Rooms, where they have a place they know very well, for example their house and they have a number of cubes for each room in their house, and they go through each room with the words happening there (from the letter pairs they memorized).