Hi Patrick,

KGS admin told me to reuse my Golois2 account for the new version of
Golois using a value network, that's why it jumped from 1 dan to 7 dan,
the old Golois2 was a policy network, the new one uses the policy network
as a prior for MCTS and a value network to evaluate states. It runs on 3
GTX 1080Ti GPUs, making approximately 2 000 evaluations in 12 seconds for
each move. It uses resnet as explained in my recent paper in TCIAIG and
ACG. There should be all versions of Golois on KGS from 1 to 7, I recently
only used Golois2 so maybe some other accounts disappeared. I could reach
4 dan with a resnet based policy network.

Thank you for your interest,


> Hi,
> Can anyone (starting with their author maybe) comment on the  go
> programs playing on KGS as the various "Golois" versions ?
> In particular, I noticed that Golois2 KGS rank recently jumped from a
> solid 1dan to a solid 6dan (actually now in the low 7dan in fast games,
> 15"/move time control; user's info :"Golois version 3.8").
> Golois and Golois2 have been described by their author as greedy
> players, based on a Res-Net policy network. So I'm wondering if the
> currently Golois2 7dan is still based on greedy play (what sounds
> amazing, even for 15s time control) or if it does incorporate some level
> of tactical search.
> In his papers "Residual Networks for Computer Go"
> (http://www.lamsade.dauphine.fr/~cazenave/papers/resnet.pdf), "Improved
> architectures for computer go" (https://openreview.net/pdf?id=Bk67W4Yxl)
> and "Combining tactical search and deep learning in the game of Go"
> (http://www.lamsade.dauphine.fr/~cazenave/papers/godeep.pdf) , Tristan
> Cazenave's describes different versions of Golois, but it is not clear
> for me while reading these papers and checking KGS archive users Golois%
> what is behind each version. For example:
> "We made the 20 layers residual network with bagging and a 58.5450%
> accuracy play games on the KGS internet Go server. The program name is
> Golois4 and it is quite popular, playing 24 hours a day against various
> opponents. It is ranked 3 dan."
> (http://www.lamsade.dauphine.fr/~cazenave/papers/resnet.pdf). However, I
> don't find a Golois4 in KGS archive, only Golois, Golois2, Golois5,
> Golois6 and Golois7 ...
> Thanks and regards,
> Patrick
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