[Pachi] Scoring

Gareth Davies gareth.davies at lmh.ox.ac.uk
Thu Aug 25 11:45:17 CEST 2011


I've been using pachi for a short time now.  I ran into a problem yesterday where pachi (with the uct engine) passed very close to the end of a won game only to lose by 18.5 points due to a score counting technicality.  The root of the problem should be obvious from the sgf.

This lead me to start digging through the source code and I started to get lost in data and confused by dead groups.  In particular I cannot make sense of the gtp command final_score when run on the result of score.gtp.  Is there some difference between a board state that pachi wants to pass on and a board state that's fit for final_score?

-------------- next part --------------
A non-text attachment was scrubbed...
Name: score.gtp
Type: application/octet-stream
Size: 2186 bytes
Desc: score.gtp
URL: <http://rover.ms.mff.cuni.cz/pipermail/pachi/attachments/20110825/85fca16b/attachment.obj>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: score.sgf
Type: application/x-go-sgf
Size: 1729 bytes
Desc: score.sgf
URL: <http://rover.ms.mff.cuni.cz/pipermail/pachi/attachments/20110825/85fca16b/attachment.sgf>

More information about the Pachi mailing list