[gnugo-devel] How strong is gnugo?

[Tomasz Wegrzanowski]

gnugo homepage seems quite spectacularly inaccurate.

http://www.gnu.org/software/gnugo/gnugo.html says: This is a tough question.
Against humans, its results vary a lot depending on how well the human knows
its weaknesses, and on other factors (time settings, hardware, etc.), but most
robots running GNU Go on one of the go servers achieve a rank of 8k-9k.
Compared to other go programs, it may be 1-2 stones weaker than the
top commercial go programs.

Wikipedia [http://en.wikipedia.org/wiki/GNU_Go]: At this level of performance,
GnuGo was between six and seven stones weaker than the top commercial
programs on good hardware as of early 2009

Sensei's Library [http://senseis.xmp.net/?Zen] Zen is a strong Go engine
by an individual Japanese programmer Yamato (real name not disclosed yet).
A bot running this engine played on KGS in April and May 2009 as Zen19 and
was the first to hold a KGS 2d (and 1d) rating for more than 20 rated
games in a row.


That doesn't seem like anywhere near 1-2 stones weaker than top
commercial go programs,
more like 8-10 stones weaker.