[computer-go] SGF-Questions

[Chrilly]

----- Original Message ----- 
From: "Anders Kierulf" <anders at smartgo.com>
To: "'computer-go'" <computer-go at computer-go.org>
Sent: Tuesday, April 10, 2007 4:37 PM
Subject: RE: [computer-go] SGF-Questions


>> a) If one setups a position. Is there a property for the
>>    number of white and black captured stones so far.
>
> No. (If you use Chinese scoring, that doesn't matter.)

I am confused. I found recently a serious bug in Suzie. The chess based 
hash-Code did not take the captured stones into account.
This led to the loss of a close game in the late endgame (but we use 
Japanese Scoring).

>
>> b) There is the property AE. The list of empty points.
>>    Is it necessary to setup also the empty points or is
>>    it sufficient to setup only the black and white
>>    stones with AB and AW?
>
> Just use AB and AW. Only use AE when you're actually removing stones.
>
Okay,
>> c) if one setup-ups a position and there is no KO-Point.
>>    Is it necessary to specifiy a non-existing KO-Point
>>    (e.g. as KO[tt] or KO[] ) or has one to setup the KO
>>    only if there is a "real" KO-Point.
>
> Only add the KO property if there's a forbidden ko point. Also note that 
> KO
> is not a standard SGF property, but some programs support it.
>
Ok.

Thanks, Chrilly