Chess (application) - AbsoluteAstronomy.com

Chess is a chess game

Chess

Chess is a two-player board game played on a chessboard, a square-checkered board with 64 squares arranged in an eight-by-eight grid. It is one of the world's most popular games, played by millions of people worldwide at home, in clubs, online, by correspondence, and in tournaments.Each player...

for Mac OS X

Mac OS X

Mac OS X is a series of Unix-based operating systems and graphical user interfaces developed, marketed, and sold by Apple Inc. Since 2002, has been included with all new Macintosh computer systems...

, and its progenitor, OPENSTEP

OpenStep

OpenStep was an object-oriented application programming interface specification for an object-oriented operating system that used a non-NeXTSTEP operating system as its core, principally developed by NeXT with Sun Microsystems. OPENSTEP was a specific implementation of the OpenStep API developed...

, featuring a high-quality graphical display and support for chess variant

Chess variant

A chess variant is a game related to, derived from or inspired by chess. The difference from chess might include one or more of the following:...

s such as crazyhouse

Crazyhouse

Crazyhouse is a chess variant similar to bughouse chess, but with only two players. It effectively incorporates a rule in shogi , in which a player can introduce a captured piece back to the board as his own....

and suicide chess

Antichess

Antichess, also called losing chess, loser's chess, zero chess, giveaway chess, suicide chess, take-me chess or reverse chess is a chess variant in which the objective of the participants is to get all of their pieces captured. The most widely played variation, as described in the book Popular...

. Also included are different skins featuring metal, grass, marble and wood. It is bundled with the Mac OS X operating system and is also distributed as free

Free software

Free software, software libre or libre software is software that can be used, studied, and modified without restriction, and which can be copied and redistributed in modified or unmodified form either without restriction, or with restrictions that only ensure that further recipients can also do...

and open source software on the Apple website.

The Apple Chess front end is a Cocoa application whose drawing code is based on the glChess

GlChess

Glchess is a chess program for GNOME, licensed under the GPL as part of Gnome Games. It features both a 2D and 3D chessboard interface.-External links:* *...

OpenGL

OpenGL is a standard specification defining a cross-language, cross-platform API for writing applications that produce 2D and 3D computer graphics. The interface consists of over 250 different function calls which can be used to draw complex three-dimensional scenes from simple primitives. OpenGL...

chess client. It communicates with the Sjeng chess engine which runs in a separate process. In OPENSTEP and Mac OS X up to version 10.2 (Jaguar)

Mac OS X v10.2

Mac OS X version 10.2 "Jaguar" is the third major release of Mac OS X, Apple's desktop and server operating system. It superseded Mac OS X v10.1 code name Puma and preceded Mac OS X Panther...

, Apple Chess used bitmap graphics with a fixed, pseudo-3D, perspective, and used an early version of GNU Chess

GNU Chess

GNU Chess is a computer program which plays a full game of chess against a human or other computer program.GNU Chess is one of the oldest computer chess programs for Unix-based computers and one of the earliest available with full source code....

as the back end engine.

Chess can be also played using voice commands which uses Mac OS X's built-in speech recognition capabilities. Games can be logged using the log feature, which can include information such as names, dates, places, types of game and moves made.

See also