The main thing to notice is that several of the games and positions are available as Portable Game Notation (PGN) files, which can be downloaded from the The games and most of the annotations can be found in the PGN block provided on every page and played through offline using a chess database or PGN viewer. In the PGN block there is also a link for you to view the games in a web page, no downloads required.
For those who care about other things: This website grew up, rather haphazardly, between 1995-2001 on a site hosted by Exeter University. When the University kicked us off their servers, Tryfon Gavriel stepped in to help and we are now hosted by Technocool.
Over the years, I've tried various methods of displaying chessboards on the website, and you'll find most of them still here in some form or other. The big breakthrough was Andy Duplain's CBASCII which enabled me to generate little 8x8 grids of computer-generated symbols, which I could then push through bits of sed and awk and perl to replace the symbols with pictures.