Lavergne Thomas wrote:
> If some bot can be setup to play on kgs for enough time to get a solid
> rank and then put on cgos to get an elo rating with the same
> configuration we could find a formula to convert elo to kgs ranks.
> For sure, this is not perfect but I think is good enought.
>   
Here are the issues.   You want to know how good a 19x19 HUMAN 1 dan
player would do on CGOS  playing 9x9.    This is because there is no
real ranking system for 9x9 and yet you would like to be able to say
that program xyz plays 2 dan strength,  even though the ranking system
wasn't really designed for 9x9 Go.       We just need a "point of
reference" so that we can say in general terms that a program like Mogo
on CGOS is playing 2 dan strength (or whatever it really is.)      

But most of us feel that you cannot do this with GO programs - you need
humans.   For instance you could take GnuGo,  get a 19x19 rating and
then play on 9x9 CGOS and use it as a reference point.    However GnuGo
was not designed to play 9x9 go.   My own program Lazarus is terrible at
19x19 but pretty good at 9x9.   It could probably give a low kyu player
a really good game on 9x9 but it would be easily beat at 19x19 - so it's
not a good way to standardize.    I believe GnuGo is more balanced in
this way - but it's probably a bad idea in general to figure it this way.

Your idea is fine for 19x19 CGOS.  

- Don



> Tom
>
> On Tue, Dec 04, 2007 at 05:30:15PM -0500, Don Dailey wrote:
>   
>> The only issue is that I don't know if GnuGo is representative of 19x19
>> to 9x9 go strength.   I am interested in knowing how a human 19x19
>> scales down to 9x9 play.      It's well known that programs scale up poorly.
>>
>> However, this data should still be quite useful.
>>
>> - Don
>>
>>     
>
>   
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