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Created page with "'''Home * Engines * Chess-Master''' FILE:Schachcomputer-CM.jpg|border|right|thumb|Chess-Master <ref>East German chess computer CM (Chess-Master,) [http://..."
'''[[Main Page|Home]] * [[Engines]] * Chess-Master'''
[[FILE:Schachcomputer-CM.jpg|border|right|thumb|Chess-Master <ref>East German chess computer CM (Chess-Master,) [http://de.wikipedia.org/w/index.php?title=Schachcomputer_in_der_DDR#CM CM, Schachcomputer in der DDR from Wikipedia.de] (German)</ref> ]]
'''Chess-Master''',<br/>
a [[Dedicated Chess Computers|dedicated chess computer]] series manufactured in the 80s by [[VEB Mikroelektronik Erfurt|VEB Mikroelektronik „Karl Marx“ Erfurt]], [https://en.wikipedia.org/wiki/East_Germany East Germany], in [https://en.wikipedia.org/wiki/West_Germany West Germany] sold by Radiophon. Chess-Master ran on an 8-bit [https://en.wikipedia.org/wiki/U880 U880] CPU, which was an unlicensed [[Z80]] clone, and had 10 KB [[Memory#ROM|ROM]] and 2 KB [[Memory#RAM|RAM]]. The chess program was initially written by [[Dieter Schultze]] and [[Rüdiger Worbs]].
[[Piece Recognition|Automatic piece recognition]] was implemented with [https://en.wikipedia.org/wiki/Hall_effect_sensor Hall effect sensors] under each square of the chessboard, while pieces had two reverse directed [https://en.wikipedia.org/wiki/Magnet permanent magnets] with different compensation embedded, so that a cyclic running multiplexed I/O program, also polling the keyboard, could recognize the pieces <ref>[http://www.robotron-net.de/sonstiges.html#CM OEM und Sonstiges - Schachcomputer "ChessMaster"] from [http://www.robotron-net.de/ Robotron-net.de] (German)</ref> <ref>[http://www.robotron-net.de/Service/Dokus/CM-Sp.jpg Chess-Master circuit diagram] hosted by [http://www.robotron-net.de/ Robotron-net.de]</ref> .
Chess-Master played the [[WMCCC 1983|3rd World Microcomputer Chess Championship]] 1983 in [https://en.wikipedia.org/wiki/Budapest Budapest], running on a 2.5 MHz processor, searching 12 - 15 [[Nodes per Second|nodes per second]] <ref>[[Frederic Friedel]] ('''1984'''). ''Move from the East''. Report of the WMCCC 1983, [[Personal Computer World]], January 1984</ref>, and competed with [[Sensory 9|Fidelity Sensory 9]] for the title of the best commercial entry <ref>[[David Kittinger]] ('''1984'''). ''Report from Budapest''. [[Computer Chess Reports|Computer Chess Digest Annual 1984]] pp. 34</ref>.
=Chess-Master Table=
[[FILE:Schachcomputertisch-CMT.jpg|border|right|thumb|Chess-Master Table <ref>[http://commons.wikimedia.org/wiki/Mikroelektronik Kombinat Mikroelektronik Erfurt (KME) from Wikimedia Commons], Photo by [http://commons.wikimedia.org/wiki/User_talk:Erdmann_Schleinitz Erdmann Schleinitz]</ref> <ref>[http://www.schach-computer.info/wiki/index.php/Chess-Master_Schachtisch Chess-Master Schachtisch] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki] (German)</ref> ]]
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 [https://en.wikipedia.org/wiki/Fidel_Castro Fidel Castro], a gift by [https://en.wikipedia.org/wiki/Erich_Honecker Erich Honecker] <ref>[http://www.schach-computer.info/wiki/index.php/VEB_Mikroelektronik_Erfurt VEB Mikroelektronik Erfurt] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info - Wiki] (German)</ref> <ref>[[Karsten Bauermeister]] ('''1999'''). ''Deutsch-Deutsche Geschichte(n)''. [[Computerschach und Spiele]]. No. 5, October-November 1999, pp 32-33 (German)</ref> .
<span id="ChessMasterDiamond"></span>
=Chess-Master Diamond=
[[FILE:Schachcomputer-CM-diamond.jpg|border|right|thumb| Chess-Master Diamond <ref>[http://commons.wikimedia.org/wiki/Mikroelektronik Kombinat Mikroelektronik Erfurt (KME) from Wikimedia Commons], Photo by [http://commons.wikimedia.org/wiki/User_talk:Erdmann_Schleinitz Erdmann Schleinitz]</ref> ]]
The improved '''Chess-Master Diamond''' was contributed by [[Rüdiger Worbs]] and [[Wolfgang Pähtz]] <ref>[http://www.schach-computer.info/wiki/index.php/Chess-Master_Diamond Chess-Master Diamond] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki] (German)</ref> , and was released in 1987 <ref>[http://www.schach-computer.info/wiki/index.php/Chess-Master_Diamond Chess-Master Diamond] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki] (German)</ref> .
<span id="VideoChessMaster"></span>
=Video Chess-Master=
[[FILE:VideoChess-Master.gif|border|right|thumb|link=https://www.schachburg.de/threads/2414-Der-Video-Chess-Master-in-der-DDR| Video Chess-Master Screen <ref>[https://www.schachburg.de/threads/2414-Der-Video-Chess-Master-in-der-DDR Der Video Chess-Master in der DDR]</ref> ]]
The Chess-Master program was further ported to the [https://en.wikipedia.org/wiki/KC_85 KC 85/2] [https://en.wikipedia.org/wiki/Personal_computer personal computer] (an [https://en.wikipedia.org/wiki/Amstrad_CPC Amstrad CPC] clone) by [[Wolfgang Pähtz]].
=See also=
* [[Chessmaster]]
* [[Chess Champion Super System III|ChessMaster]] aka Chess Champion Super System III
* [[Various Classifications#Masters|Masters]]
* [[SC 1]]
* [[SC 2]]
=Publications=
* [[Dieter Schultze]], [[Rüdiger Worbs]] ('''1986'''). ''Schachcomputer Chess-Master CM'', rfe, H1, S 19-21 <ref>[http://www.robotron-net.de/sonstiges.html#CM OEM und Sonstiges - Schachcomputer "ChessMaster"] from [http://www.robotron-net.de/ Robotron-net.de] (German)</ref>
* [[Christian Posthoff]], [[Günter Reinemann]] ('''1987'''). ''Computerschach - Schachcomputer''. Berlin: Akademie-Verl., ISBN-13: 978-3055002281, with cooperation of [https://en.wikipedia.org/wiki/Rainer_Knaak Rainer Knaak], [[Michael Schlosser]], [[Rainer Staudte]], [[Rüdiger Worbs]], available from [http://www.wernerkaufmann.ch/Computer.aspx 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''. [http://de.wikipedia.org/wiki/Rochade_Europa Europa-Rochade] 03-1988, 04-1988 <ref>[http://www.schaakcomputers.nl/hein_veldhuis/database/files/10-1987%20%5BH-1501%5D%20VEB%20Mikroelektronik%20Erfurt%20-%20Chess-Master%20Diamond.pdf VEB Mikroelektronik Erfurt - Chess-Master Diamond], pdf hosted by [[Hein Veldhuis]]</ref>
* [[Thomas Mally]] ('''1989'''). ''Dinosaurus Hi-Tech - Chess Master “Diamond” nicht ganz Lupenrein''. [[Modul]] 1/1989 <ref>[http://www.schaakcomputers.nl/hein_veldhuis/database/files/10-1987%20%5BH-1501%5D%20VEB%20Mikroelektronik%20Erfurt%20-%20Chess-Master%20Diamond.pdf VEB Mikroelektronik Erfurt - Chess-Master Diamond], pdf hosted by [[Hein Veldhuis]]</ref>
* [[Karsten Bauermeister]] ('''1999'''). ''Deutsch-Deutsche Geschichte(n)''. [[Computerschach und Spiele]]. No. 5, October-November 1999, pp 32-33 (German)
=External Links=
* [https://www.game-ai-forum.org/icga-tournaments/program.php?id=481 Chess-Master's ICGA Tournaments]
* [http://www.spacious-mind.com/html/chess-master.html Rft/VEB Erfurt Chess-Master Electronic Chess Computer] from [[The Spacious Mind]]
* [http://www.xs4all.nl/%7Etluif/chescom/EngChesMas.html Chess Master] by [http://www.xs4all.nl/%7Etluif/ Tom Luif]
* [http://www.xs4all.nl/%7Etluif/chescom/EngCMdiam.html Chess Master Diamond] by [http://www.xs4all.nl/%7Etluif/ Tom Luif]
* [https://de.wikipedia.org/w/index.php?title=Schachcomputer_in_der_DDR#CM CM, Schachcomputer in der DDR from Wikipedia.de] (German)
* [http://www.schach-computer.info/wiki/index.php/Chess-Master Chess-Master] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki] (German)
* [http://www.schach-computer.info/wiki/index.php/Chess-Master_Schachtisch Chess-Master Schachtisch] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki] (German)
* [http://www.schach-computer.info/wiki/index.php/Chess-Master_Diamond Chess-Master Diamond] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki] (German)
* [http://www.schachcomputer.at/diamond.htm Chess-Master Diamond] from [http://www.schachcomputer.at/index.htm Kurt´s Schachcomputer Homepage] by [[Kurt Kispert]] (German)
* [http://www.robotron-net.de/sonstiges.html#CM OEM und Sonstiges - Schachcomputer "ChessMaster"] from [http://www.robotron-net.de/ Robotron-net.de] (German)
* [http://www.robotrontechnik.de/index.htm?/html/computer/schach.htm Schachcomputer] from [http://www.robotrontechnik.de/index.htm?/html/internes/haupt_en.htm robotrontechnik.de] (German)
=References=
<references />
'''[[Engines|Up one level]]'''
[[FILE:Schachcomputer-CM.jpg|border|right|thumb|Chess-Master <ref>East German chess computer CM (Chess-Master,) [http://de.wikipedia.org/w/index.php?title=Schachcomputer_in_der_DDR#CM CM, Schachcomputer in der DDR from Wikipedia.de] (German)</ref> ]]
'''Chess-Master''',<br/>
a [[Dedicated Chess Computers|dedicated chess computer]] series manufactured in the 80s by [[VEB Mikroelektronik Erfurt|VEB Mikroelektronik „Karl Marx“ Erfurt]], [https://en.wikipedia.org/wiki/East_Germany East Germany], in [https://en.wikipedia.org/wiki/West_Germany West Germany] sold by Radiophon. Chess-Master ran on an 8-bit [https://en.wikipedia.org/wiki/U880 U880] CPU, which was an unlicensed [[Z80]] clone, and had 10 KB [[Memory#ROM|ROM]] and 2 KB [[Memory#RAM|RAM]]. The chess program was initially written by [[Dieter Schultze]] and [[Rüdiger Worbs]].
[[Piece Recognition|Automatic piece recognition]] was implemented with [https://en.wikipedia.org/wiki/Hall_effect_sensor Hall effect sensors] under each square of the chessboard, while pieces had two reverse directed [https://en.wikipedia.org/wiki/Magnet permanent magnets] with different compensation embedded, so that a cyclic running multiplexed I/O program, also polling the keyboard, could recognize the pieces <ref>[http://www.robotron-net.de/sonstiges.html#CM OEM und Sonstiges - Schachcomputer "ChessMaster"] from [http://www.robotron-net.de/ Robotron-net.de] (German)</ref> <ref>[http://www.robotron-net.de/Service/Dokus/CM-Sp.jpg Chess-Master circuit diagram] hosted by [http://www.robotron-net.de/ Robotron-net.de]</ref> .
Chess-Master played the [[WMCCC 1983|3rd World Microcomputer Chess Championship]] 1983 in [https://en.wikipedia.org/wiki/Budapest Budapest], running on a 2.5 MHz processor, searching 12 - 15 [[Nodes per Second|nodes per second]] <ref>[[Frederic Friedel]] ('''1984'''). ''Move from the East''. Report of the WMCCC 1983, [[Personal Computer World]], January 1984</ref>, and competed with [[Sensory 9|Fidelity Sensory 9]] for the title of the best commercial entry <ref>[[David Kittinger]] ('''1984'''). ''Report from Budapest''. [[Computer Chess Reports|Computer Chess Digest Annual 1984]] pp. 34</ref>.
=Chess-Master Table=
[[FILE:Schachcomputertisch-CMT.jpg|border|right|thumb|Chess-Master Table <ref>[http://commons.wikimedia.org/wiki/Mikroelektronik Kombinat Mikroelektronik Erfurt (KME) from Wikimedia Commons], Photo by [http://commons.wikimedia.org/wiki/User_talk:Erdmann_Schleinitz Erdmann Schleinitz]</ref> <ref>[http://www.schach-computer.info/wiki/index.php/Chess-Master_Schachtisch Chess-Master Schachtisch] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki] (German)</ref> ]]
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 [https://en.wikipedia.org/wiki/Fidel_Castro Fidel Castro], a gift by [https://en.wikipedia.org/wiki/Erich_Honecker Erich Honecker] <ref>[http://www.schach-computer.info/wiki/index.php/VEB_Mikroelektronik_Erfurt VEB Mikroelektronik Erfurt] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info - Wiki] (German)</ref> <ref>[[Karsten Bauermeister]] ('''1999'''). ''Deutsch-Deutsche Geschichte(n)''. [[Computerschach und Spiele]]. No. 5, October-November 1999, pp 32-33 (German)</ref> .
<span id="ChessMasterDiamond"></span>
=Chess-Master Diamond=
[[FILE:Schachcomputer-CM-diamond.jpg|border|right|thumb| Chess-Master Diamond <ref>[http://commons.wikimedia.org/wiki/Mikroelektronik Kombinat Mikroelektronik Erfurt (KME) from Wikimedia Commons], Photo by [http://commons.wikimedia.org/wiki/User_talk:Erdmann_Schleinitz Erdmann Schleinitz]</ref> ]]
The improved '''Chess-Master Diamond''' was contributed by [[Rüdiger Worbs]] and [[Wolfgang Pähtz]] <ref>[http://www.schach-computer.info/wiki/index.php/Chess-Master_Diamond Chess-Master Diamond] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki] (German)</ref> , and was released in 1987 <ref>[http://www.schach-computer.info/wiki/index.php/Chess-Master_Diamond Chess-Master Diamond] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki] (German)</ref> .
<span id="VideoChessMaster"></span>
=Video Chess-Master=
[[FILE:VideoChess-Master.gif|border|right|thumb|link=https://www.schachburg.de/threads/2414-Der-Video-Chess-Master-in-der-DDR| Video Chess-Master Screen <ref>[https://www.schachburg.de/threads/2414-Der-Video-Chess-Master-in-der-DDR Der Video Chess-Master in der DDR]</ref> ]]
The Chess-Master program was further ported to the [https://en.wikipedia.org/wiki/KC_85 KC 85/2] [https://en.wikipedia.org/wiki/Personal_computer personal computer] (an [https://en.wikipedia.org/wiki/Amstrad_CPC Amstrad CPC] clone) by [[Wolfgang Pähtz]].
=See also=
* [[Chessmaster]]
* [[Chess Champion Super System III|ChessMaster]] aka Chess Champion Super System III
* [[Various Classifications#Masters|Masters]]
* [[SC 1]]
* [[SC 2]]
=Publications=
* [[Dieter Schultze]], [[Rüdiger Worbs]] ('''1986'''). ''Schachcomputer Chess-Master CM'', rfe, H1, S 19-21 <ref>[http://www.robotron-net.de/sonstiges.html#CM OEM und Sonstiges - Schachcomputer "ChessMaster"] from [http://www.robotron-net.de/ Robotron-net.de] (German)</ref>
* [[Christian Posthoff]], [[Günter Reinemann]] ('''1987'''). ''Computerschach - Schachcomputer''. Berlin: Akademie-Verl., ISBN-13: 978-3055002281, with cooperation of [https://en.wikipedia.org/wiki/Rainer_Knaak Rainer Knaak], [[Michael Schlosser]], [[Rainer Staudte]], [[Rüdiger Worbs]], available from [http://www.wernerkaufmann.ch/Computer.aspx 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''. [http://de.wikipedia.org/wiki/Rochade_Europa Europa-Rochade] 03-1988, 04-1988 <ref>[http://www.schaakcomputers.nl/hein_veldhuis/database/files/10-1987%20%5BH-1501%5D%20VEB%20Mikroelektronik%20Erfurt%20-%20Chess-Master%20Diamond.pdf VEB Mikroelektronik Erfurt - Chess-Master Diamond], pdf hosted by [[Hein Veldhuis]]</ref>
* [[Thomas Mally]] ('''1989'''). ''Dinosaurus Hi-Tech - Chess Master “Diamond” nicht ganz Lupenrein''. [[Modul]] 1/1989 <ref>[http://www.schaakcomputers.nl/hein_veldhuis/database/files/10-1987%20%5BH-1501%5D%20VEB%20Mikroelektronik%20Erfurt%20-%20Chess-Master%20Diamond.pdf VEB Mikroelektronik Erfurt - Chess-Master Diamond], pdf hosted by [[Hein Veldhuis]]</ref>
* [[Karsten Bauermeister]] ('''1999'''). ''Deutsch-Deutsche Geschichte(n)''. [[Computerschach und Spiele]]. No. 5, October-November 1999, pp 32-33 (German)
=External Links=
* [https://www.game-ai-forum.org/icga-tournaments/program.php?id=481 Chess-Master's ICGA Tournaments]
* [http://www.spacious-mind.com/html/chess-master.html Rft/VEB Erfurt Chess-Master Electronic Chess Computer] from [[The Spacious Mind]]
* [http://www.xs4all.nl/%7Etluif/chescom/EngChesMas.html Chess Master] by [http://www.xs4all.nl/%7Etluif/ Tom Luif]
* [http://www.xs4all.nl/%7Etluif/chescom/EngCMdiam.html Chess Master Diamond] by [http://www.xs4all.nl/%7Etluif/ Tom Luif]
* [https://de.wikipedia.org/w/index.php?title=Schachcomputer_in_der_DDR#CM CM, Schachcomputer in der DDR from Wikipedia.de] (German)
* [http://www.schach-computer.info/wiki/index.php/Chess-Master Chess-Master] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki] (German)
* [http://www.schach-computer.info/wiki/index.php/Chess-Master_Schachtisch Chess-Master Schachtisch] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki] (German)
* [http://www.schach-computer.info/wiki/index.php/Chess-Master_Diamond Chess-Master Diamond] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki] (German)
* [http://www.schachcomputer.at/diamond.htm Chess-Master Diamond] from [http://www.schachcomputer.at/index.htm Kurt´s Schachcomputer Homepage] by [[Kurt Kispert]] (German)
* [http://www.robotron-net.de/sonstiges.html#CM OEM und Sonstiges - Schachcomputer "ChessMaster"] from [http://www.robotron-net.de/ Robotron-net.de] (German)
* [http://www.robotrontechnik.de/index.htm?/html/computer/schach.htm Schachcomputer] from [http://www.robotrontechnik.de/index.htm?/html/internes/haupt_en.htm robotrontechnik.de] (German)
=References=
<references />
'''[[Engines|Up one level]]'''
