Re: [gnugo-devel] Three stone games

[Trevor Morris]

These mean values of the score differences aren't really meaningful.
GNU Go plays more conservatively when ahead.  That is, GNU Go is
not tuned to maximize the point differential, rather to maximize the
chances of winning.

The questions you ask make a lot of sense.  I don't have any hard
numbers, but can share the following observations:

I've noticed some asymmetry when the same version of GNU Go plays
itself even.  I've don't recall the details, however.

I did, back around 3.1.20 or so, play a series of 1-game kadoban games
btw. GNU Go and itself.  It only rarely won 2-stone games, and never
pushed itself to four stones (i.e. didn't beat itself at 3-stones).  The number
of games was pretty small, though.

-Trevor

>...
>        
>        477     490     Sum of points   
>        18.35   20.42   Arithmetic Mean value   
>        18      17.5    Median  (gives white the advantage)
>        12.14   15.11   Geometric mean value    
>                        
>        14.47   14.68   Standard deviation      
>
>I did some statistics on the material supplied.
>hope this could be helpful for you.
>
>The achieved points are some kind of "territory"
>White won 26 times. only the median gives white a 
>higher score. 
>
>What happens when two equal versions of gnugo plays 
>9x9,  13 x 13 and 19 x 19 board sizes?
>
>Without handicap stones ? 
>Which komi is required for each size ?
>
>Yours Sincerely
>
>Morten Gulbrandsen
>
>
>address@hidden wrote:
>> 
>> Gunnar raised the question of how GNU Go would do
>> in three stone games against 3.0. A few releases
>> ago it lost about 65% of the games but now they
>> seem to be evenly matched with this handicap. Here
>> are the scores in a 50 game series.
>> 
>>...
>> 
>> Dan
>> 
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