As default it seems you can only add users to the bot with a maximum of 9 letters for their name.
So before I compile my next bot, what file need I to alter to allow me to add users with max 15 letters in their name? - Same as the network the bot is on uses?
Actualy NO, see this post about the difference betwen nick length and the handle length, and check this post for the solution on how to modify the handle length. Anyway, this subject have been discussed before, why don't you use the Search function of the forum and get an "on the fly" answer?
Once the game is over, the king and the pawn go back in the same box.