Chess program Pirat
- Graphical interface for classical correspondence and email chess players. Includes instructions, endgame databases, engines and links.
- http://www.go-pirat.de/pirat_english.htm

LightningRulez
- Based on Winboard, offers enhancements for playing speed chess on ICC and FICS. GPL licensed, Windows only.
- http://www.thebugboard.net/messages/318/328.html

CompuChess
- An 3D chess client for Windows.
- http://www.inertiasoftware.com/chess/

Net Blitz II
- Playable over the Internet or against a computer.
- http://www.netblitzchess.com/

Dorky Chess
- A freeware Windows chess engine compatible with Winboard.
- http://home.insightbb.com/~mmcknight/

Checkmate
- Freeware, Windows 98/ME/2000/XP. It should also run on Windows 95 and NT4 but is untested on those systems.
- http://flagrantdisregard.com/checkmate/

iNemesis
- Based on CClient but has a completely new user interface and some interesting features. Works on ICC and FICS, freeware, Windows only.
- http://www.ideabuilders.com/public/

SLICS
- A fairly old and no longer developed interface. Not very pretty, but very fast and is quite featureful. Shareware, Windows only (including 3.1)
- http://www.dfong.com/chessbd/

Icarus
- A very featureful and polished interface for ICC. Freeware, Windows only.
- http://www.randomly.com/icarus/index-en.html

Blitzin
- The Internet Chess Club's proprietary client. Freeware, Windows only. Several languages supported.
- http://www.chessclub.com/interface/download_w32.html