Xpdnt
- Chess engine for Winboard/Xboard. Has basic opening book and adjustable hash size.
- http://free-chess.home.comcast.net/

Beowulf
- WinBoard and XBoard chess engine that runs on Windows, UNIX and Linux. Source code is available.
- http://www.frayn.net/beowulf/

Jim Ablett's Winboard Projects
- Contains links of Winboard projects like MSCP chess engine, java executables, Pgn-Extract-XP.
- http://homepages.tesco.net/henry.ablett/jims.html

Faile
- A free engine runs with WinBoard and Xboard. The source code is also available under the GNU GPL software license.
- http://faile.sourceforge.net/

Kiwi
- Winboard and XBoard chess engine with opening book.
- http://www.ascotti.org/programming/chess/chess.htm

Green Light Chess
- Free program that plays chess, either with its own graphical interface, or using Tim Mann's Winboard program. Estimated ELO 2300.
- http://www.7sun.com/chess/

Gargamella
- An Italian engine. Includes downloads.
- http://digilander.libero.it/gargamellachess/

Delfi
- A freeware engine.
- http://www.msbsoftware.it/delfi/

A Tribute to Winboard
- An excellent page from a Winboard fan, that has everything from A to Z about Winboard.
- http://www.edcollins.com/chess/winboard.htm

XBoard and WinBoard
- A graphic interface program. Includes news, FAQs, and downloads.
- http://www.tim-mann.org/xboard.html