GNU Chess

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GNU Chess,
an open source chess program from the Free Software Foundation. GNU Chess was initially written by Stuart Cracraft in the mid 80s, joined by John Stanback who contributed his own code to GNU Chess 2 and 3 which was laboriously and meticulously well-written [1]. Dozens of developers have enhanced GNU Chess over the times. Version 5 was a complete rewrite by Chua Kong Sian, incorporating his chess program Cobalt and Cracraft's Gazebo [2]. Fabien Letouzey is the primary author of GNU Chess 6, based on Fruit 2.1 [3].
GNU [4]

Fidelity Match

In 1990, GNU Chess 1.55 with Hans Eric Sandström's fast move generator defeats Fidelity in a 10 game match [5] [6]:
A 10 game match was conducted between GNU Chess 1.55 running on a Sun SPARCstation-1 and the strong commercial chess machine Fidelity Mach 3. Fidelity Mach 3 is officially rated USCF 2265 (2200 is master). Most observers acknowledge it is a true master. The match result was 7-3 in GNU's favor. After various corrections, we arrive at a putative rating of around 2330 (strong master) for GNU Chess 1.55 on this machine. This result was most unexpected since prior versions of GNU Chess had scored no more than 3 points out of 10 against the Mach 3. The big leap appears to come from: (1) the inclusion of Hans Eric Sandstrom's fast move generator and (2) the Sparcstation-1, which is (apparently) particularly suited to speedy chess processing. Minor modifications to the book, draw factor, and thinking on opponent's time have also helped. Please remember this rating is based on a short match result. Certain moves GNU Chess plays are clearly non-master in quality. Computer masters generally achieve their strength through accuracy of tactics, not subtle positional moves.

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External Links

Chess Engine


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References

  1. ^ Re: request ... by Stuart Cracraft, gnu.chess, June 16, 1995
  2. ^ gnuchess/common.h at master · heisencoder/gnuchess · GitHub
  3. ^ GNU Chess - Free Software Foundation
  4. ^ The GNU Operating System
  5. ^ GNU's Bulletin, vol. 1 no. 8 - GNU Project - Free Software Foundation (FSF) | GNUs Flashes
  6. ^ GNU Chess 1.55 vs. Fidelity Mach 3 by Stuart Cracraft, gnu.chess, January 3, 1990
  7. ^ Re: Old programs CHAOS and USC by Dann Corbit, CCC, July 11, 2015

What links here?

Page Date Edited
2D Graphics Board Sep 23, 2017
ACM 1987 Dec 5, 2017
AnMon Nov 17, 2017
Antonio Ceballos Aug 10, 2017
Belzebub Oct 20, 2015
Bernard Helmstetter May 23, 2016
CCT1 Dec 30, 2012
CCT2 Sep 7, 2012
CCT3 Feb 14, 2013
CCT7 Dec 16, 2017
Chess Engine Communication Protocol Mar 4, 2018
Chess Wizard Dec 22, 2014
Chua Kong Sian May 25, 2017
Cobalt May 25, 2017
Comet Jan 8, 2016
Computer Chess Forums Nov 26, 2017
DOCCC 2003 Aug 17, 2016
Dreamer Aug 5, 2015
Engine releases Apr 23, 2018
Engines Mar 10, 2018
Eugen Jan 7, 2016
Eugenio Castillo Jiménez Jul 23, 2017
Evaluation Feb 1, 2018
Fernando Villegas Aug 15, 2016
Ferret Jan 7, 2016
Fruit Sep 27, 2016
Gavon Apr 30, 2018
Gazebo May 21, 2017
Genetic Programming Dec 26, 2017
GNOME Chess Aug 18, 2017
GNU Chess Jan 21, 2018
Greco Feb 12, 2015
Heinz Herbeck Feb 27, 2014
InBetween Jan 21, 2018
Jay Scott Dec 1, 2017
John Stanback Dec 7, 2016
Killer Heuristic Sep 14, 2017
Killer Move Feb 16, 2017
La Dame Blanche Oct 15, 2015
Linux Jan 21, 2018
Lothar M. Schmitt May 23, 2016
Macintosh Dec 7, 2016
Massy 2002 Jan 2, 2018
Mathematician Apr 9, 2018
Michael Gherrity May 8, 2015
Michael Sherwin Dec 18, 2017
Michel Van den Bergh Mar 10, 2018
MLChess Jan 17, 2017
Morph Dec 7, 2017
Move Generation Jan 29, 2018
NegaScout Jul 6, 2016
NeuroChess Dec 7, 2017
Now Jan 7, 2016
Open Source Engines Jul 14, 2015
Opening Book Feb 26, 2018
Parallel Search Dec 30, 2017
Parrot Dec 31, 2014
Pawn Rams (Bitboards) Nov 11, 2017
Pepito Nov 27, 2014
Peter Skinner Oct 30, 2016
Piece-Lists Feb 13, 2017
PuppetMaster Sep 17, 2015
Rajah Sep 12, 2012
Recapture Extensions Feb 2, 2013
Réti Endgame Study Feb 25, 2014
Richard Karp Apr 30, 2015
Rotated Bitboards Mar 7, 2017
SAL Dec 7, 2017
SCP Jun 16, 2016
Sebastian Thrun Feb 12, 2018
StarTech Oct 20, 2016
Steven Edwards Aug 26, 2017
Stobor Jan 8, 2016
Stuart Cracraft May 19, 2017
Table-driven Move Generation Feb 19, 2017
Tim Mann Nov 5, 2016
Tomohiko Mitsuta May 23, 2016
Tristan Caulfield Dec 1, 2017
TSCP Feb 5, 2016
Uniform-Platform Computer Chess Championship Mar 25, 2011
UPCCC 1992 Mar 9, 2012
UPCCC 1993 Mar 6, 2015
UPCCC 1994 Mar 9, 2012
Urban Koistinen Apr 20, 2014
Valavan Manohararajah May 4, 2017
Wasp Nov 24, 2017
Wb2UCI Feb 1, 2018
WinBoard Mar 4, 2018
XBoard Jan 21, 2018
Zarkov Feb 26, 2018

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