how to play it is simple, from each alphabet you just need to write the very first thing on your mind related to TES, whether its places, things, persons, gods, and creatures. example :
Hbxn =
Aedra
Bruma
Cathay
Darius
.... until Z
(All that is needed to play is honesty and you don't have to search for anything if you have no idea what to write, because it's just for fun :)