| The CSE forum (Computer Schach Extra) | http://www.f27.parsimony.net/forum66816/ |
| The Computer Chess Club | http://www.talkchess.com/ |
| A very good site on tree based decision making algorithms in German | http://www.iicm.edu/greif/node7.html |
| A good site on game strategies in German | http://www.kbs.uni-hannover.de/[…]/spieltheorie.html |
| The PGN specifications | http://www.very-best.de/pgn-spec.htm |