Jseki is a collection of utilities related to the ancient board game Go (also known as Wei-Qi or Baduk)—basically a repository for any Open-Source Go-related programming I do.
Currently I've written two applications which you might find of use:
http://jseki.sourceforge.net/Tsumego/
Jseki Tsumego is a program that utilizes spaced repetition (the Leitner method) to help memorize life-and-death problems. It uses the "Status?" approach rather than requiring the user to find the correct move, which more closely approximates real-game scenarios that a player is likely to encounter.
http://jseki.sourceforge.net/KgsStatistics/
This tool downloads all your games from KGS, shows some statistics like win/loss percentage, and has a simple "Joseki Reviewer" where you can see how your openings compare against a simple Joseki dictionary, possibly alerting you to weaknesses in your opening (or in your opponents' openings).
http://jseki.sourceforge.net/PairPro/
PairPro is a program to assist tournament directors in the pairing process, as well as reporting the results of the tournament (e.g. to the AGA). It can also be used by people who are running a school club or the like who just want to record the results of games played and calculate relative strengths of the players.
Currently PairPro is in proof-of-concept stage. The above link has some hand-drawn mockups of what the application should look like, and some descriptions of how the application is meant to be used. All the UI screens found in those mockups have been implemented in Java code, but only a handful of them actually do anything useful. That code is in CVS; if you want a copy (of the code or of the proof-of-concept application), drop me a line at the email address below and I'll put a download link up here.
Want to contact me? Send an email to rosswerner [at] users [dot] sourceforge [dot] net.
Want to visit Jseki's project page? You can find that here: http://sourceforge.net/projects/jseki
I'm also the maintainer for a program that converts Sensei's Library database dumps into html files called "Sensei's Library On Tour". You can find that here:
http://slot.sourceforge.net/