Eboard is a chess interface for Unix-like systems (GNU/Linux, FreeBSD, Solaris, etc.) based on the GTK+ GUI toolkit. It provides a chess board interface to ICS (Internet Chess Servers) like FICS and to chess engines like GNU Chess, Sjeng and Crafty.

The primary purpose of eboard is serving as interface to FICS, but also allows you to play against a chess program, analyze saved games, and play with other eboard user on the Internet.

eboard is developed by Felipe Bergo (fbergo at gmail dot com , and my handle at FICS is Pulga). eboard is Free Software, distributed under the terms of the GNU General Public License.
eboard provides many features other interfaces lack, like a good looking, configurable interface, multiple board views, resizeable board (without restarting), seek table, text input separated from the output, input history (bash-like), scripting, scroll lock, and many others. See the features section for a walk-through of eboard's features.
eboard development services are hosted by SourceForge. An FTP mirror of eboard and related files is kindly hosted by the SEUL project.
eboard is developed by volunteers, and donations from satisfied users are welcome.

XBoard is a graphical user interface for chess in all its major forms, including international chess, xiangqi (Chinese chess), shogi (Japanese chess) and Makruk, in addition to many minor variants such as Losers Chess, Crazyhouse, Chess960 and Capabanca Chess. It displays a chessboard on the screen, accepts moves made with the mouse, and loads and saves games in Portable Game Notation (PGN).

The Mobi chess client for handheld mobile devices intended for use on the Free Internet Chess Server and the Internet Chess Club should be possible to run on any device that supports something called Java MIDP 2.0 and can run Java programs as large as 100 KBytes. Most of the mobile phones except the most basic ones sold today do, and some older ones that support only Java MIDP 1.0 are rumored to support the necessary functionality to run Mobi too.