Free winboard chess software for linux

BabyChess is a chess program. You can edit chess games, play chess on the internet, and play locally against engines.
BabyChess is distributed as free software under the terms of the GNU GPL.
Main features:
- Games between humans and/or engines can be played in the match window. XBoard engines are supported.
- The chess position editor lets you edit a chess position, and save it in FEN notation, as used by other chess programs.
- The chess game editor understands PGN notation.
- The game archive editor reads PGN files that contain any number of chess games. It displays a list of all games and lets you edit those games using the game editor.
- The ICS client connects you to an Internet Chess Server and lets you play games against human opponents.
- The "evaluator" of BabyChess is a chess engine that uses its own communication protocol. It is not an XBoard engine. This program is given a FEN position as an argument and analyzes the position. During the thinking process, information about the current best move and more is written.
- The game editor uses the chess evaluator to analyze chess positions.
- Internally, the evaluator uses 64 bit numbers even on 32 bit systems, meaning it is possible to analyze more than 2 billion positions on PCs.
- This program implements an XBoard chess engine. It uses the evaluator as a backend.
- In addition to the standard algebraic notation (SAN). French, German and Dutch notations are supported. Figurine notation is also supported, also the current fonts dont make it look good. New notations can be created.

PicoChess project is a small chess program.

PicoChess will support one and two player games, as well as playing against itself. It can also load and save games, and export transcripts of games.

miniCHESS is a chess game WindowMaker dockapp.

miniCHESS was born out of boredom. I warn you... if your a chess enthusiast and play a lot then please use xboard or some other chess gui.

Even though miniCHESS has that kinda cool factor, it does get hard on the eyes. I like using miniCHESS for games in which Im in no hurry to finish and go on for a couple days.

Sorry but miniCHESS has no save/restore features yet.

Usage:

miniCHESS has a variety of options:

-h help
-t play text game (def = mouse game)
-r more random moves by the engine
-a hard, engine will also think on your time (def = no)
-d n max search depth used by the engine (def = 29)
-c n max time the engine gets to make a move (def = inf)
-T n size of the transposition table (def = 150001)
-C n size of the cache table (def = 18001)
-k #color background color for a checkmated king (def = #ff0000)
-b #color background color for the black pieces (def = #000000)
-f #color foreground color for the black pieces (def = #ffffff)
-1 #color color for the dark squares (def = #c8c365)
-2 #color color for the light squares (def = #77a26d)

If you specify a search depth (-d) to (say) 4 ply, the program will search until all moves have been examined to a depth of 4. If you set a maximum time (-t) per move and also use the depth option, the search will stop at the specified time or the specified depth, whichever comes first.

Gnuchess is a cpu hog while its thinking. Be aware. When the hard option (-a) is specified then the engine thinks all the time and pins your cpu.

Also gnuchess can be a memory hog. Specifying the size of the transposition and cache tables will modify the memory used. See the memory usage excerpt from the gnuchess FAQ below.

White piece colors are the reverse of what is specified for the black pieces.

GNU Chess project is a computer program which plays the Game of Chess.
GNU Chess lets most modern computers play a full game of chess.
It has a plain terminal interface but supports visual interfaces such as X-Windows "xboard" and Windows-for-PC "winboard" as well as a full 3-dimensional wooden chess-board protocol for the Novag Chess board enabling one to be relatively free of the computer itself.
Enhancements:
- Minor ScoreDev code tidy
- ensure gnuchessx included in EXTRA_DIST
- Fix to Posix thread for readline
- Fix to ensure "HARD" is default
- Improve Posix thread handling
- Portability fix IsTrustedPlayer
- Portability fix to lexpgn.l
- Changes to lexpgn.l to handle some special cases
- Fix trailing "/" in FEN causes buffer overflow issues.
- Portability fix to lexpgn.l

Five Chess is a connect-five board game. Five Chess is released under the terms of GNU General Public License version 2.
It was initially developed from a qt Tic-Tac-Toe example.
Main features:
- 4 ways to play -- Human vs Human, AI vs Human, Human vs AI, AI vs AI
- 6 board sizes available -- 9X9 to 19X19
- Save Played games
- View played games
- Not so smart AI

CSBoard is a small GUI for gnuchess. It is written in C# and uses gtk-sharp and mono. CSBoard is simple, but allows you just play chess with SVG graphics and native look and desktop theme usage.

CSBoard has very detailed user documentation and fully integrated with GNOME desktop environment for many things, like support of mime-types.

CSBoard use gnuchess as playing engine, but you can also play with crafty of phalanx.

Currently user part of CSBoard is almost finished, it can satisfy newbie user needs. But the requirements of advanced chess users are much more complicated.

So the main goal is development of architecture that will allow things like ICS (internet chess server) support but still keep interface simple.

Vulcan Chess project allows you play against the computer in a chess variant inspired by a certain well-known science-fiction TV series.
Enhancements:
- Castling was added.
- The legal move generator is a bit faster.

XBoard project is a X and Windows graphical chessboard.
XBoard is a graphical chessboard for X that can serve as a user interface for GNU Chess, Crafty, other chess engines, and the Internet Chess Servers.
XBoard can also be used by itself to read and write game files in PGN (portable game notation). WinBoard is a port of XBoard to Microsoft Win32.
You can build xboard on most systems with the following commands.
./configure
make
Enhancements:
- Version 4.2.7 corrects about two dozen bugs in the 4.2.6 release.
- In addition, WinBoard 4.2.7 comes bundled with GNU Chess 5.07 instead of the old 5.02+ version.
- The XBoard and WinBoard source code trees have been merged, so the xboard download now contains the complete source for both.