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GNU Chess is a computer program for playing chess. GNU Chess is one of the oldest computer chess programs for Unix-based computers and has been ported to several other platforms. The GNU Chess project is one of the older parts of the GNU package of software, having started in 1984. The first version of GNU Chess was written by Stuart Cracraft. [1] All subsequent versions before version 5 were written by John Stanback. Image File history File links Winboard_4. ...
Windows port of Xboard XBoard, also known as WinBoard on Microsoft operating systems, is a free graphical user interface client compatible with various chess server programs such as GNU Chess or Internet Chess Servers. ...
Software development is the translation of a user need or marketing goal into a software product. ...
A software release is the distribution, whether public or private, of an initial or new and upgraded version of a computer software product. ...
is the 219th day of the year (220th in leap years) in the Gregorian calendar. ...
Year 2003 (MMIII) was a common year starting on Wednesday of the Gregorian calendar. ...
// An operating system (OS) is the software that manages the sharing of the resources of a computer. ...
Filiation of Unix and Unix-like systems Unix (officially trademarked as UNIX®) is a computer operating system originally developed in 1969 by a group of AT&T employees at Bell Labs including Ken Thompson, Dennis Ritchie and Douglas McIlroy. ...
The GP2X is an open-source, Linux-based handheld video game console and media player created and sold by GamePark Holdings of South Korea. ...
Windows redirects here. ...
Computer software can be organized into categories based on common function, type, or field of use. ...
1990s Pressure-sensory Chess Computer with LCD screen The idea of creating a chess-playing machine dates back to the eighteenth century. ...
A software license is a legal agreement which may take the form of a proprietary or gratuitous license as well as a memorandum of contract between a producer and a user of computer software. ...
The GNU logo The GNU General Public License (GNU GPL or simply GPL) is a widely-used free software license, originally written by Richard Stallman for the GNU project. ...
A website (alternatively, Web site or web site) is a collection of Web pages, images, videos and other digital assets that is hosted on one or several Web server(s), usually accessible via the Internet, cell phone or a LAN. A Web page is a document, typically written in HTML...
A computer program is a collection of instructions that describe a task, or set of tasks, to be carried out by a computer. ...
Chess is a recreational and competitive game for two players. ...
1990s Pressure-sensory Chess Computer with LCD screen The idea of creating a chess-playing machine dates back to the eighteenth century. ...
Filiation of Unix and Unix-like systems Unix (officially trademarked as UNIX®) is a computer operating system originally developed in 1969 by a group of AT&T employees at Bell Labs including Ken Thompson, Dennis Ritchie and Douglas McIlroy. ...
GNU (pronounced ) is a computer operating system composed entirely of free software. ...
GNU Chess is free software, licensed under the terms of the GNU General Public License, and is maintained by collaborating developers. It is often used in conjunction with a GUI program such as XBoard. Image File history File links No higher resolution available. ...
Image File history File links No higher resolution available. ...
This article is about the GNOME project and desktop environment. ...
Clockwise from top: The logo of the GNU Project (the GNU head), the Linux kernel mascot Tux the Penguin, and the FreeBSD daemon Free software is a term coined by Richard Stallman and the Free Software Foundation[1] to refer to software that can be used, studied, and modified without...
The GNU logo The GNU General Public License (GNU GPL or simply GPL) is a widely-used free software license, originally written by Richard Stallman for the GNU project. ...
A graphical user interface (GUI) is a type of user interface which allows people to interact with a computer and computer-controlled devices which employ graphical icons, visual indicators or special graphical elements called widgets, along with text labels or text navigation to represent the information and actions available to...
Windows port of Xboard XBoard, also known as WinBoard on Microsoft operating systems, is a free graphical user interface client compatible with various chess server programs such as GNU Chess or Internet Chess Servers, developed by Tim Mann. ...
In 1998–1999 GNU Chess underwent a transition to version 5. Version 5 was essentially a complete rewrite from scratch of GNU Chess to eliminate spaghetti code and replace antiquated data structures with more advanced computer chess implementation techniques. These included bitboards, a search algorithm called Principal Variation Search (PVS) (a variation by Professor Tony Marsland of alpha-beta minimax), and full end-leaf evaluation. The primary author of version 5 was Chua Kong-Sian. [2] Spaghetti code is a pejorative term for source code which has a complex and tangled control structure, especially one using many GOTOs, exceptions, threads, or other unstructured branching constructs. ...
To meet Wikipedias quality standards, this article or section may require cleanup. ...
In computer science, a search algorithm, broadly speaking, is an algorithm that takes a problem as input and returns a solution to the problem, usually after evaluating a number of possible solutions. ...
NegaScout or Principal Variation Search is a minimax algorithm faster than alpha-beta pruning. ...
Alpha-beta pruning is a search algorithm that reduces the number of nodes that need to be evaluated in the search tree by the minimax algorithm. ...
It uses a number of other techniques to improve its performance, such as an opening book (generated by studying master games) to help it start well and hash tables storing previously-analyzed positions to prevent wasting time re-analyzing already analyzed positions. Opening books, which discuss chess openings, are by far the most common type of literature on Chess play. ...
In computer science, a hash table is a data structure that speeds up searching for information by a particular aspect of that information, called a key. ...
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