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'''Great Game Machine''' (GGM),<br/>
a [[Dedicated Chess Computers|dedicated chess computer]] module system designed by [[John Aker]] (electronics) and [[Alan Mead]], registered <ref>[http://www.trademarkia.com/great-game-machine-73305281.html GREAT GAME MACHINE - Reviews & Brand Information - Applied Concepts, Inc. Colorado Springs]</ref>, manufactured and distributed by [[Applied Concepts]], identical in construction with the [[Chafitz Modular Game System]] (MGS) sold by [[Chafitz]]. The GGM had exchangeable modules with programs from multiple authors, [[Boris|Boris 2.5]] based on [[Sargon|Sargon 2.5]] by [[Kathe Spracklen|Kathe]] and [[Dan Spracklen]] further improved by [[Terry Fredrick]], [[Morphy]] by [[John Aker]], the opening module [[Morphy#Gruenfeld|Gruenfeld]] by [[Larry Atkin]], [[David Slate]] and [[John Jacobs]], the endgame module [[Morphy#Capablanca|Capablanca]] by Atkin and Slate, and the [[Steinitz]] module by Atkin, all [[6502]] based. There were also other game modules available, such as [[Checkers]] <ref>[http://www.schaakcomputers.nl/hein_veldhuis/database/files/12-1980%20%5BK-1001%5D%20Applied%20Concepts%20-%20Borchek%20%28championship%20checkers%20module%29.pdf Applied Concepts - Borchek (championship checkers module)] (pdf) by [[Hein Veldhuis]]</ref>, and the [[Othello]] program [[Peter W. Frey#Odin|Odin]] by [[Peter W. Frey]] and Larry Atkin.
=Tournaments=
=Publications=
* [[Harry Shershow]] ('''1981'''). ''Two New Units In Action''. [[Personal Computing#5_2|Personal Computing, Vol. 5, No. 2]], pp. 91 » [[John Aker]], [[MCC 1980]]
* [[Jan Louwman]] ('''1981'''). ''Morphy + Great Game Machine''. 06/07-1981, Databus, p. 26-36 » [[Morphy]], [[Great Game Machine]] <ref>[http://www.schaakcomputers.nl/hein_veldhuis/database/files/01-1981%20%5BE-4701%5D%20Applied%20Concepts%20-%20Morphy%20Edition%20Master%20Chess%20%28module%29.pdf Applied Concepts - Morphy Edition Master Chess (module)] (pdf) hosted by [[Hein Veldhuis]]</ref>
* [[John F. White]] ('''1982'''). ''[http://yourcomputeronline.wordpress.com/2011/01/08/review-morphy-v-champion/ Review-Morphy V Champion]''. [[Your Computer]], [http://yourcomputeronline.wordpress.com/2010/12/28/january-1982-contents-and-editorial/ January 1982]
* [http://www.spacious-mind.com/html/great_game_machine.html Chafitz Great Game Machine Electronic Chess Computer] from [[The Spacious Mind]]
* [http://www.spacious-mind.com/html/great_game_machine_4_mhz.html Chafitz Great Game Machine 4 MHz Electronic Chess Computer] from [[The Spacious Mind]]
* [http://tluif.home.xs4all.nl/chescom/EngBorSarg.html Boris Sargon 2.5] by [http://www.xs4all.nl/%7Etluif/ [Tom Luif]]
* [http://www.schach-computer.info/wiki/index.php/Chafitz_Modular_Game_System Chafitz Modular Game System] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki] (German)
