Software:Kasparov's Gambit

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Kasparov's Gambit
Developer(s)Heuristic Software
Publisher(s)Electronic Arts
EngineSocrates II
Platform(s)MS-DOS
Release
  • NA: November 1993
Genre(s)Chess
Mode(s)Single player

Kasparov's Gambit, or simply Gambit, is a chess playing computer program created by Heuristic Software and published by Electronic Arts in 1993 based on Socrates II, the only winner of the North American Computer Chess Championship running on a common microcomputer.[1] It was designed for MS-DOS while Garry Kasparov reigned as world champion, whose involvement and support was its key allure.[2] A Macintosh version was planned to be released in 1995.[3]

History

Julio Kaplan, chessplayer, computer programmer, and owner of the company 'Heuristic Software', first developed Heuristic Alpha in 1990–91.[4] The original version evolved into Socrates with the help of other chess players and programmers including Larry Kaufman and Don Dailey, who, later, were also developers of Kasparov's Gambit.[5]

Improvements to Socrates were reflected in a version called Titan, renamed for competition as Socrates II,[6] the most successful of the series winning the 1993 ACM International Chess Championship.[7] During the course of the championship Socrates II, which was running on a stock 486 PC, defeated opponents with purpose-built hardware and software for playing chess, including HiTech[8] and Cray Blitz.[9]

Electronic Arts purchased Socrates II and hired its creators to build a new product, Kasparov's Gambit, including Kasparov as consultant and brand. It was the company's effort to enter the chess programs market, dominated at the time by Chessmaster 3000 and Blitz. In 1993 it went on sale, but contained a number of bugs, so was patched at the end of that year. The patched version ran at about 75% of the speed of Socrates II which was quite an achievement considering the whole functionality of the software was sharing the same computer resources.[10]

In 1993, it competed in the Harvard Cup (six humans versus six programs) facing grandmasters who had ratings ranging from 2515 to 2625 ELO.[11] It finished the competition in 12th and last place. Grandmasters took the first five places and another Socrates derivation - Socrates Exp - was the best program finishing in 6th place. [12]

According to team developer Eric Schiller, a Windows version was planned by Electronic Arts, but was never finished.[13] Electronic Arts had earlier produced the chess variant Archon (1983), and later followed up with Battle Chess II (2002) and Jamdat Mobile's Kasparov Chessmate (2003).

Reception

Computer Gaming World in 1993 approved of Kasparov's Gambit's "stunning" SVGA graphics, Socrates II engine, and coaching features, concluding that it was "above any PC game on the market".[14] It was a runner-up for the magazine's Strategy Game of the Year award in June 1994, losing to Master of Orion. The editors called Kasparov's Gambit "beautifully crafted", a "great teacher" and "a chess game for the 'rest of us.'"[15] It holds the 145th place in Computer Gaming World's 1996 list of 150 Best Games of All Time.[16]

Features

Gambit was intended to have the capabilities of a champion level software and a teaching tool for a wide range of player levels.[17] It was Electronic Arts' first use of windowed video[2] showing digitized images, video and voice of champ Garry Kasparov giving advice and commenting on player moves.[18]

Primary features include:[19][20]

  • Interactive tutorial with video-help by Garry Kasparov
  • An inline glossary of chess terms
  • A library of 500 famous games played by past world champions
  • An auxiliary graphical chessboard showing the computer's analysis while playing or reviewing moves
  • An interactive move list
  • An analysis text box, showing move's elapsed time, depth, score of the best evaluated line and number of positions seek
  • Multiple computer playing styles allowing creation and customization of computer opponents
  • A coach window including the moves played and comments about openings and advice, sometimes showing videos of Kasparov

Rating

The human strength rating is calculated using Elo formula with the included personalities and the player's own performance, going from 800 to 2800 points. New players get a customizable 800 Elo, which changes according to the total number of games played, opponents' relative strength, and game results.[21]

Creation of personalities enables five adjustable characteristics in percentage (0-100%)—strength, orthodoxy, creativity, focus and aggressiveness—which define, besides its style, its Elo rating.[22] User Elo is calculated according to Gambit's universe of electronic players and the user, and so do not match rankings in real world. Instead this feature was designed to provide a useful way to measure the player's strength and progress against Gambit.[23]

Teaching tools

Besides 125 tutorials, written by renowned chess author and developer Eric Schiller,[24] classified in openings, middle game, endgames (checkmates), tactics and strategy also include a Famous Games database, a list of all-time world champions games commented by Kasparov with a quiz option where user must choose the next move.[25]

Technical information

It was designed for 386SX IBM AT compatible systems. Even when it was possible to read commands from a keyboard or mouse, the use of a mouse was recommended. When it was released, Kasparov's Gambit offered a nice look & feel experience using SVGA mode with a 640x480 resolution, 256 colors, and voice/video recordings of world champion Garry Kasparov. A lack of sound card support was reported by users.[26]

It is playable on DOSBox since version 0.61 on Linux and other Unix-like operating systems, Windows XP and subsequent versions, and Mac OS X.[27]

Development

First intention was using Heuristic Alpha as Gambit's base, but unexpected good performance of Socrates II in tournaments made of it the final choice. According to developer and tester Larry Kauffman[28] "first released included important bugs, that Knowledge of bishop mobility appears to be missing, as does some other chess knowledge, and Gambit appears to run only about 50-60% of the speed of the ACM program in positions (without bishops) where the two do play and evaluate identically. There are also bugs in the features and the time controls, and the program is rather difficult to use (perhaps because it has so many features). One good thing I can say is that the 3d graphics are superb... I have tested the patched version, and have confirmed that most or all of the bugs have been corrected. The new version does play identically to the ACM program and runs at 70-75% of the speed, so it should rate just 30 points below the ACM program." [cite 1]

Socrates II engine was fully programmed in assembly language, but rewritten just in C language for Kasparov's Gambit engine. Instead, assembly language was used for sound and video capabilities, as for other functionalities.

See also

Notes

  1. ↑ Kauffman, Larry. "PC-Software". Computer Chess Report. http://chessprogramming.wikispaces.com/Kasparov's+Gambit#History. Retrieved September 19, 2012. 

References

  1. ↑ Wall, Bill. ACM Computer Chess. Consulted on September 6, 2012
  2. ↑ 2.0 2.1 Kasparov's Gambit. Moby Games. Consulted on September 6, 2012
  3. ↑ Crotty, Cameron (July 1994). "Don't Get Rooked! - Grandmaster Mac". Electronic Entertainment (IDG Communications): 68. https://archive.org/details/ElectronicEntertainment07Jul1994/page/n69/mode/2up. "Electronic Arts says it will port Kasparov's Gambit to the Mac, but don't look for that until next year.". 
  4. ↑ Heuristic Alpha. CPW Chess Programming Wiki. Consulted on September 19, 2012.
  5. ↑ Julio Kaplan Chess Programming Wiki Retrieved on September 6, 2012
  6. ↑ Socrates. Chess Programming Wiki Retrieved on September 6, 2012
  7. ↑ ACM 1993 Chess Programming Wiki. Retrieved on September 6, 2012
  8. ↑ HiTech Chess Programming Wiki. Retrieved on September 6, 2012
  9. ↑ Cray Blitz Chess Programming Wiki
  10. ↑ Kasparov's Gambit. Chess Programming Wiki. Retrieved on September 6, 2012
  11. ↑ Comp Kasparov's Gambit. 365Chess.com. Consulted on September 19, 2012.
  12. ↑ Harvard Cup 1993. Computershaak. Retrieved on September 19, 2012.
  13. ↑ Schiller, Eric. (1996). Kasparov's Gambit vs. CM4000. Newsgroup rec.games.chess.computer. Retrieved on September 19, 2012.
  14. ↑ Walker, Bryan (December 1993). "Men of War". Computer Gaming World: 200, 202. http://www.cgwmuseum.org/galleries/index.php?year=1988&pub=2&id=47. Retrieved 31 March 2016. 
  15. ↑ "Announcing The New Premier Awards". Computer Gaming World: 51–58. June 1994. http://www.cgwmuseum.org/galleries/index.php?year=1994&pub=2&id=118. 
  16. ↑ "150 Best Games of All Time". Computer Gaming World: 64–80. November 1996. http://www.cgwmuseum.org/galleries/index.php?year=1996&pub=2&id=148. Retrieved 25 March 2016. 
  17. ↑ Kasparov's Gambit Guide to Chess (1993). Electronic Arts
  18. ↑ Kasparov's Gambit Home of the Underdogs . Retrieved on September 6, 2012
  19. ↑ Kasparov's Gambit. CDAccess. Consulted on September 6, 2012
  20. ↑ Kasparov's Gambit User's Manual (1993). Electronic Arts
  21. ↑ Schiller, E. "How to get the most out of Gambit". Kasparov's Gambit User's Manual (1993). Electronic Arts. p. 10.
  22. ↑ Kasparov's Gambit Online Help. (1993). U.S.A: Electronic Arts
  23. ↑ Opinions about Kasparov's Gambit. Newsgroup rec.games.chess.computer. Retrieved on September 19, 2012
  24. ↑ Schiller, Eric. (1996). Opinions on Kasparovs Gambit program?. September 19, 2012
  25. ↑ Schiller, E. "How to get the most out of Gambit". Kasparov's Gambit User's Manual (1993). Electronic Arts. p. 12.
  26. ↑ corey_russell. Play chess with Kasparov kibitzing. Forum Epinions. Retrieved on September 19, 2012.
  27. ↑ DOSBox. Consulted on September 19, 2012.
  28. ↑ Kauffman, Larry. (1993). Read in Kasparov's Gambit History. Retrieved on September 19, 2012.
  • MobyGames is a commercial database website that catalogs information on video games and the people and companies behind them via crowdsourcing. This includes over 300,000 games for hundreds of platforms.[1] Founded in 1999, ownership of the site has changed hands several times. It has been owned by Atari SA since 2022.

Features

Edits and submissions to the site (including screenshots, box art, developer information, game summaries, and more) go through a verification process of fact-checking by volunteer "approvers".[2] This lengthy approval process after submission can range from minutes to days or months.[3] The most commonly used sources are the video game's website, packaging, and credit screens. There is a published standard for game information and copy-editing.[4] A ranking system allows users to earn points for contributing accurate information.[5]

Registered users can rate and review games. Users can create private or public "have" and "want" lists, which can generate a list of games available for trade with other registered users. The site contains an integrated forum. Each listed game can have its own sub-forum.

History

Logo used until March 2014

MobyGames was founded on March 1, 1999, by Jim Leonard and Brian Hirt, and joined by David Berk 18 months later, the three of which had been friends since high school.[6][7] Leonard had the idea of sharing information about computer games with a larger audience. The database began with information about games for IBM PC compatibles, relying on the founders' personal collections. Eventually, the site was opened up to allow general users to contribute information.[5] In a 2003 interview, Berk emphasized MobyGames' dedication to taking video games more seriously than broader society and to preserving games for their important cultural influence.[5]

In mid-2010, MobyGames was purchased by GameFly for an undisclosed amount.[8] This was announced to the community post factum , and the site's interface was given an unpopular redesign.[7] A few major contributors left, refusing to do volunteer work for a commercial website.{{Citation needed|date=June 2025} On December 18, 2013, MobyGames was acquired by Jeremiah Freyholtz, owner of Blue Flame Labs (a San Francisco-based game and web development company) and VGBoxArt (a site for fan-made video game box art).[9] Blue Flame Labs reverted MobyGames' interface to its pre-overhaul look and feel,[10] and for the next eight years, the site was run by Freyholtz and Independent Games Festival organizer Simon Carless.[7]

On November 24, 2021, Atari SA announced a potential deal with Blue Flame Labs to purchase MobyGames for $1.5 million.[11] The purchase was completed on 8 March 2022, with Freyholtz remaining as general manager.[12][13][14] Over the next year, the financial boost given by Atari led to a rework of the site being built from scratch with a new backend codebase, as well as updates improving the mobile and desktop user interface.[1] This was accomplished by investing in full-time development of the site instead of its previously part-time development.[15]

In 2024, MobyGames began offering a paid "Pro" membership option for the site to generate additional revenue.[16] Previously, the site had generated income exclusively through banner ads and (from March 2014 onward) a small number of patrons via the Patreon website.[17]

See also

  • IGDB – game database used by Twitch for its search and discovery functions

References

  1. ↑ 1.0 1.1 Sheehan, Gavin (2023-02-22). "Atari Relaunches The Fully Rebuilt & Optimized MobyGames Website". https://bleedingcool.com/games/atari-relaunches-the-fully-rebuilt-optimized-mobygames-website/. 
  2. ↑ Litchfield, Ted (2021-11-26). "Zombie company Atari to devour MobyGames". https://www.pcgamer.com/zombie-company-atari-to-devour-mobygames/. 
  3. ↑ "MobyGames FAQ: Emails Answered § When will my submission be approved?". Blue Flame Labs. 30 March 2014. http://www.mobygames.com/info/faq7#g1. 
  4. ↑ "The MobyGames Standards and Practices". Blue Flame Labs. 6 January 2016. http://www.mobygames.com/info/standards. 
  5. ↑ 5.0 5.1 5.2 Miller, Stanley A. (2003-04-22). "People's choice awards honor favorite Web sites". Milwaukee Journal Sentinel. 
  6. ↑ "20 Years of MobyGames" (in en). 2019-02-28. https://trixter.oldskool.org/2019/02/28/20-years-of-mobygames/. 
  7. ↑ 7.0 7.1 7.2 Plunkett, Luke (2022-03-10). "Atari Buys MobyGames For $1.5 Million". https://kotaku.com/mobygames-retro-credits-database-imdb-atari-freyholtz-b-1848638521. 
  8. ↑ "Report: MobyGames Acquired By GameFly Media". Gamasutra. 2011-02-07. https://www.gamedeveloper.com/game-platforms/report-mobygames-acquired-by-gamefly-media. 
  9. ↑ Corriea, Alexa Ray (December 31, 2013). "MobyGames purchased from GameFly, improvements planned". http://www.polygon.com/2013/12/31/5261414/mobygames-purchased-from-gamefly-improvements-planned. 
  10. ↑ Wawro, Alex (31 December 2013). "Game dev database MobyGames getting some TLC under new owner". Gamasutra. https://www.gamedeveloper.com/business/game-dev-database-mobygames-getting-some-tlc-under-new-owner. 
  11. ↑ "Atari invests in Anstream, may buy MobyGames". November 24, 2021. https://www.gamesindustry.biz/articles/2021-11-24-atari-invests-in-anstream-may-buy-mobygames. 
  12. ↑ Rousseau, Jeffrey (2022-03-09). "Atari purchases Moby Games". https://www.gamesindustry.biz/atari-purchases-moby-games. 
  13. ↑ "Atari Completes MobyGames Acquisition, Details Plans for the Site's Continued Support". March 8, 2022. https://www.atari.com/atari-completes-mobygames-acquisition-details-plans-for-the-sites-continued-support/. 
  14. ↑ "Atari has acquired game database MobyGames for $1.5 million" (in en-GB). 2022-03-09. https://www.videogameschronicle.com/news/atari-has-acquired-game-database-mobygames-for-1-5-million/. 
  15. ↑ Stanton, Rich (2022-03-10). "Atari buys videogame database MobyGames for $1.5 million". https://www.pcgamer.com/atari-buys-videogame-database-mobygames-for-dollar15-million/. 
  16. ↑ Harris, John (2024-03-09). "MobyGames Offering “Pro” Membership". https://setsideb.com/mobygames-offering-pro-membership/. 
  17. ↑ "MobyGames on Patreon". http://www.patreon.com/mobygames. 
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