Hi! I'd just like to let you know I have tagged version 5.00 of the Pachi Go playing program (codename "Dosaku"). I certainly don't want to spam the mailing list with announcement of each next release, but I figured some people might be interested this time, since Pachi's 19x19 strength with default settings seems to finally be on par with Fuego; Pachi still might be couple ELO points weaker, but the performance (within the same time limits) is certainly becoming very comparable at least according to my testing. The recent improvements are mainly thanks to tuning help and timekeeping code kindly contributed by Jean-Loup Gailly!
Pachi is a simple, open source, Go-specific, modular program reimplementing published UCT MCTS methods mostly the Mogo way (Mogo-like playout rules, UCT priors and RAVE exploration), plus of course trying various small original research ideas. (CrazyStone-like playouts are being developed intensively, but disabled by default for now since buggy and unoptimized yet.) Pachi scales well up to many cores, has very flexible time management support and can take full advantage of available KGS bot features. Only playing with very long thinking times is currently not tested very well and might not work best out of the box. You can get the latestPachi sources at http://repo.or.cz/w/pachi.git, 5.00 source tarball for UNIX/GNU systems is at: http://repo.or.cz/w/pachi.git/snapshot/9de4aaf662aecb27cadd527b8e9d651a95c49a19.tar.gz Pre-compiled binaries and packages are currently not available, perhaps someone will create some. Kind regards, -- Petr "Pasky" Baudis A great many people think they are thinking when they are merely rearranging their prejudices. -- William James _______________________________________________ computer-go mailing list [email protected] http://www.computer-go.org/mailman/listinfo/computer-go/
