Right, it doesn't - but kgsGtp does. This is a KGS-client program for use by bots. There is some information on these pages:The Kiseido Go Server (KGS) supports the GTP protocol, and has programsGTP has no mechanism for login/passwd (IIRC, maybe I missed another draft)
Right. But these options are in kgsGtp. See 'open' and 'opponent' in the second of the URLs above.NB I do not want to start another server-war ;-] Also, I believe GTP is intended for controlling an engine, which is not the same as comunicating with a go-playing-program. There is for instance no provision for challenging your opponent, or accepting a match request.