[Computer-go] CGOS source on github

Rémi Coulom remi.coulom at gmail.com
Fri Jan 22 04:59:09 PST 2021


Hi David,

You are right that non-determinism and bot blind spots are a source of
problems with Elo ratings. I add randomness to the openings, but it is
still difficult to avoid repeating some patterns. I have just noticed that
the two wins of CrazyStone-81-15po against LZ_286_e6e2_p400 were caused by
very similar ladders in the opening:
http://www.yss-aya.com/cgos/viewer.cgi?19x19/SGF/2021/01/21/733333.sgf
http://www.yss-aya.com/cgos/viewer.cgi?19x19/SGF/2021/01/21/733301.sgf
Such a huge blind spot in such a strong engine is likely to cause rating
compression.

Rémi
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