Chess-Master

a dedicated chess computer series manufactured in the 80s by VEB Mikroelektronik „Karl Marx“ Erfurt, [|East Germany], in [|West Germany] sold by Radiophon. Chess-Master ran on an 8-bit [|U880] CPU, which was an unlicensed Z80 clone, and had 10 KB ROM and 2 KB RAM. The chess program was initially written by Dieter Schultze and Rüdiger Worbs.
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 * [[image:301px-Schachcomputer-CM.jpg width="328" link="http://de.wikipedia.org/wiki/Schachcomputer_in_der_DDR#CM"]] ||~  || **Chess-Master**,

Automatic piece recognition was implemented with [|Hall effect sensors] under each square of the chessboard, while pieces had two reverse directed [|permanent magnets] with different compensation embedded, so that a cyclic running multiplexed I/O program, also polling the keyboard, could recognize the pieces.

Chess-Master played the 3rd World Microcomputer Chess Championship 1983 in [|Budapest], running on a 2.5 MHz processor, searching 12 - 15 nodes per second, and competed with Fidelity Sensory 9 for the title of the best commercial entry. || toc =Chess-Master Table= The Chess-Master Table was a rare piece of jewelry. Only approximately 10 issues were build for special purposes - for instance, one Chess-Master Table was dedicated to [|Fidel Castro], a gift by [|Erich Honecker].
 * Chess-Master ||~  ||^   ||
 * [[image:496px-Schachcomputertisch-CMT.jpg link="http://commons.wikimedia.org/wiki/File:Schachcomputertisch-CMT.jpg"]] ||
 * Chess-Master Table ||

 =Chess-Master Diamond= the improved Diamond version was contributed by Rüdiger Worbs and Wolfgang Pähtz, and was released in 1987. || =Video Chess-Master=
 * [[image:294px-Schachcomputer-CM-diamond.jpg width="328" link="http://commons.wikimedia.org/wiki/File:Schachcomputer-CM-diamond.jpg"]] ||~  || **Chess-Master Diamond**,
 * Chess-Master Diamond ||~  ||^   ||
 * [[image:Schach02.gif width="328" height="270" link="http://www.kc85emu.de/Spiele/guteSp3/guteSp3.htm"]] ||~  || The Chess-Master program was further ported to the [|KC 85/2] [|personal computer] (an [|Amstrad CPC] clone) by Wolfgang Pähtz. ||
 * Video Chess-Master Screen ||~  ||^   ||

=Publications=
 * Dieter Schultze, Rüdiger Worbs (**1986**). //Schachcomputer Chess-Master CM//, rfe, H1, S 19-21
 * Christian Posthoff, Günter Reinemann (**1987**). //Computerschach - Schachcomputer//. Berlin: Akademie-Verl., ISBN-13: 978-3055002281, with cooperation of [|Rainer Knaak], Michael Schlosser, Rainer Staudte, Rüdiger Worbs, available from [|Wernis Schachlade - Computerschach]
 * Rainer Hinkeldein, Rüdiger Worbs (**1988**). //Schachcomputer Chess-Master Diamond//. rfe, H5, S 316-312
 * Hans-Peter Ketterling (**1988**). //Nürnberger Messeneuheiten - VEB Mikroelektronik Erfurt - Chessmaster Diamond//. [|Europa-Rochade] 03-1988, 04-1988
 * Thomas Mally (**1989**). //Dinosaurus Hi-Tech - Chess Master “Diamond” nicht ganz Lupenrein//. Modul 1/1989
 * Karsten Bauermeister (**1999**). //Deutsch-Deutsche Geschichte(n)//. Computerschach und Spiele. No. 5, October-November 1999, pp 32-33 (German)

=See also=
 * Chessmaster
 * ChessMaster aka Chess Champion Super System III
 * Masters
 * SC 1
 * SC 2

=External Links=
 * [|Chess-Master's ICGA Tournaments]
 * [|Rft/VEB Erfurt Chess-Master Electronic Chess Computer] from The Spacious Mind
 * [|Chess Master] by [|Tom Luif]
 * [|Chess Master Diamond] by [|Tom Luif]
 * [|CM, Schachcomputer in der DDR from Wikipedia.de] (German)
 * [|Chess-Master] from [|Schachcomputer.info Wiki] (German)
 * [|Chess-Master Schachtisch] from [|Schachcomputer.info Wiki] (German)
 * [|Chess-Master Diamond] from [|Schachcomputer.info Wiki] (German)
 * [|Chess-Master Diamond] from [|Kurt´s Schachcomputer Homepage] by Kurt Kispert (German)
 * [|OEM und Sonstiges - Schachcomputer "ChessMaster"] from [|Robotron-net.de] (German)
 * [|Schachcomputer] from [|robotrontechnik.de] (German)

=References= =What links here?= include component="backlinks" page="Chess-Master" limit="40"
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