Re: [gnugo-devel] Re: Open source real time Go server

[Daniel Bump]

> >  (i) IGS is derivation of NNGS, which is free software (GPLv2)! It has
> >even seen some slight development in past few years.
> 
> I don't think that's correct - NNGS was a functional copy of IGS created
> by duplicating the published (telnet based) interfaces.  It eventually
> was open sourced before it died.

IGS was the first Go server, written by Tim Casey and Mark
Okada. (Before that, there were chess servers.)

NNGS came later. It followed the IGS protocol. This allowed
NNGS to get up and running quickly since it allowed reuse
of existing client programs such as xgospel. But it led to
trouble since IGS aggressively claimed that NNGS had no
right to use the IGS protocol.

KGS avoided such a fight with IGS by implementing their own
protocol.

Starting with the original NNGS code that was published by
Erik van Riper the code was rewritten by Nils Lohner and
others. This is the code that is publically available. I
believe that someone told me that the NNGS server that ran
on the internet did not use this code.

Daniel Bump