[computer-go] Anchor Player

[Łukasz Lew]

On 12/23/06, Don Dailey <drd at mit.edu> wrote:
> Based on some research I've done, it does make some sense to give some
> compensation for handicap stones,  because it makes it match Japanese
> and without it, the kyu system is not balanced.   I have doubts that
> it's
> perfectly balanced anyway,  but that's a different subject.
>
> So I think we will include this in our handicap server.   I want to make
> it as unambiguous as possible.   There are some ways to handle
> this:
>
>    1.  The program must know how to make the compensation.
>   OR
>    2.  The server adds the stones to komi and the program pretends
>        there is no such thing as compensation - it's just built in
>        to komi.
>   OR
>    3.  We have a GTP command to handle it.  (presumably there is no
>        specific gtp command to deal with it.
>   OR
>      any suggestions?

AGA rules solve the problem gracefully.

http://www.cs.cmu.edu/~wjh/go/rules/AGA.concise.html

I suggest to use them.

Łukasz Lew

>
> The basic idea (which matches KGS) is that if you give a 4 stone
> handicap, white gets 4 stones of compensation,  as if komi has
> increased by 4.
>
>
>
> - Don
>
>
>
> On Sat, 2006-12-23 at 09:28 +0100, Magnus Persson wrote:
> > Quoting Christian Nilsson <christian.nilsson at gmail.com>:
> >
> > > Yes, in chinese rules you need to compensate white for the extra area
> > > you gain from the actual stones. The handicap is only meant to be the
> > > extra strength/stability.
> > >
> > > One can of course ignore this for the server. I just wanted to make
> > > sure all programs use the same rules. I don't know what the
> > > tromp-taylor rules says about it.
> >
> > Please, do use this compensation because KGS use it (correct me if I am wrong)
> > and it would be very silly to make all programs buggy on at least on server.
> > The compensation is there to make japanese and chinese give the same result in
> > handicap games, which is very important to make the game consistent for all
> > players no matter what background they have.
> >
> > -Magnus
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