I’ll be throwing links to articles and descriptions of rating systems for Go, and maybe some other games, in here, as I run into them. I find rating systems morbidly interesting.

http://sabaki.org/RatingSystem.htm

And, not at all related, is the problem of tournament pairing algorithms. I’m collecting that because I’m planning on writing a pairing program, because the ones that exist are either non-free (McMahon by Gerlach) or Windows-only (Gotha by Vannier), neither of which is acceptable for me.

http://www.ap76.com/LV/gotournaments/gotha.htm http://www.cgerlach.de/macmahon.html http://ourworld.compuserve.com/homepages/AccelRat/PairAlg.htm

Who said every piece of software worth writing exists on CPAN: http://search.cpan.org/~reid/Games-Go-GoPair-1.001/ http://search.cpan.org/~reid/Algorithm-Pair-Best-1.010/Best.pm