Difference between revisions of "LogiChess"

From Chessprogramming wiki
Jump to: navigation, search
Line 2: Line 2:
  
 
'''LogiChess''', <br/>
 
'''LogiChess''', <br/>
the first chess program by [[Kaare Danielsen]] developed in 1981 for an [[Intel]] [https://en.wikipedia.org/wiki/Intel_MCS-48 8048] compatible 80C50 [https://en.wikipedia.org/wiki/CMOS CMOS] [https://en.wikipedia.org/wiki/Microcontroller microcontroller] with 4 KiB internal [[Memory#ROM|EPROM]] and only 256 byte internal [[Memory#RAM|RAM]], and a [https://en.wikipedia.org/wiki/Clock_rate clock frequency] of 3.6 resp. 7.2 MHz. It competed at the [[European MCC 1981|2nd European MCC 1981]] (3rd place) <ref>Logichess by the 17-year-old Danish schoolboy [[Kaare Danielsen]] was 3rd, from
+
the first chess program by [[Kaare Danielsen]] developed in 1981 for the [[Z80]] processor. It competed at the [[European MCC 1981|2nd European MCC 1981]] (3rd place) <ref>Logichess by the 17-year-old Danish schoolboy [[Kaare Danielsen]] was 3rd, from
 
[http://www.chesscomputeruk.com/html/chess_computers_-_the_uk_story.html Chess Computers - The UK Story] from [http://www.chesscomputeruk.com/index.html Chess Computer UK] by [[Mike Watters]]</ref> and two [[World Microcomputer Chess Championship|World Microcomputer Chess Championships]] in [[WMCCC 1981|1981]] and [[WMCCC 1983|1983]], at times supported by [[Hartvig Ekner]]  <ref>[[Frederic Friedel]] ('''1984'''). ''Move from the East''. Report of the WMCCC 1983, [[Personal Computer World]], January 1984</ref>.  
 
[http://www.chesscomputeruk.com/html/chess_computers_-_the_uk_story.html Chess Computers - The UK Story] from [http://www.chesscomputeruk.com/index.html Chess Computer UK] by [[Mike Watters]]</ref> and two [[World Microcomputer Chess Championship|World Microcomputer Chess Championships]] in [[WMCCC 1981|1981]] and [[WMCCC 1983|1983]], at times supported by [[Hartvig Ekner]]  <ref>[[Frederic Friedel]] ('''1984'''). ''Move from the East''. Report of the WMCCC 1983, [[Personal Computer World]], January 1984</ref>.  
  
 
=SciSys & CXG=
 
=SciSys & CXG=
As [[Dedicated Chess Computers|dedicated chess computer]], LogiChess was sold in approximately 200.000 units <ref>[http://www.danielsen.com/resume.shtml Resume for Kaare Danielsen]</ref> from [[Saitek|SciSys]] as [[SciSys Explorer]], [[SciSys Explorer#Concord|SciSys Concord II]] and [[SciSys Explorer#Companion|SciSys Companion II]], and from [https://en.wikipedia.org/wiki/RadioShack RadioShack] as ''Tandy 1650'' <ref>[http://www.schach-computer.info/wiki/index.php/Tandy_1650 Tandy 1650] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki]</ref>. Another 4K branch was realized for [[Newcrest Technology]], for the [[6800]] instruction set compatible [https://en.wikipedia.org/wiki/Hitachi_Ltd. Hitachi] [[6800#6301|HD6301V1]] 8-bit controller for the [[CXG Sensor Computachess#III|CXG Computachess III]] in 1984 <ref>[http://www.schach-computer.info/wiki/index.php/CXG_Computachess_III CXG Computachess III] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki] (German)</ref>, as well the Newcrest 6301V <ref>[http://www.schach-computer.info/wiki/index.php/6301V 6301V] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki]</ref> inside the [[CXG Star Chess]] of 1985 <ref>[http://www.schach-computer.info/wiki/index.php/CXG_Star_Chess CXG Star Chess] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki]</ref> <ref>[http://www.schach-computer.info/wiki/index.php/Danielsen,_Kaare Danielsen, Kaare] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki]</ref>. According to its author, LogiChess is still the strongest 4K chess computer in the world <ref>[http://www.danielsen.com/resume.shtml Resume for Kaare Danielsen]</ref>.
+
As 4K [[Dedicated Chess Computers|dedicated chess computer]], LogiChess was ported to the [[6800]] instruction set compatible [https://en.wikipedia.org/wiki/Hitachi_Ltd. Hitachi] [[6800#6301|HD6301V1]] and Newcrest 6301 8-bit controllers. It was sold in approximately 200.000 units <ref>[http://www.danielsen.com/resume.shtml Resume for Kaare Danielsen]</ref> from [[Saitek|SciSys]] as [[SciSys Explorer]], [[SciSys Explorer#Concord|SciSys Concord II]] and [[SciSys Explorer#Companion|SciSys Companion II]], and from [https://en.wikipedia.org/wiki/RadioShack RadioShack] as ''Tandy 1650'' <ref>[http://www.schach-computer.info/wiki/index.php/Tandy_1650 Tandy 1650] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki]</ref>. Another 4K <ref>[https://www.schach-computer.info/wiki/index.php/6301V 6301V] from [https://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki]</ref> branch was realized for [[Newcrest Technology]], for the [[CXG Sensor Computachess#III|CXG Computachess III]] in 1984 <ref>[http://www.schach-computer.info/wiki/index.php/CXG_Computachess_III CXG Computachess III] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki] (German)</ref>, as well inside the [[CXG Star Chess]] of 1985 <ref>[http://www.schach-computer.info/wiki/index.php/CXG_Star_Chess CXG Star Chess] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki]</ref> <ref>[http://www.schach-computer.info/wiki/index.php/Danielsen,_Kaare Danielsen, Kaare] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki]</ref>. According to its author, LogiChess is still the strongest 4K chess computer in the world <ref>[http://www.danielsen.com/resume.shtml Resume for Kaare Danielsen]</ref>.
  
 
=Lexibook=
 
=Lexibook=
Line 45: Line 45:
 
=References=  
 
=References=  
 
<references />
 
<references />
 
 
'''[[Engines|Up one level]]'''
 
'''[[Engines|Up one level]]'''
 
[[Category:Chess Suffix]]
 
[[Category:Chess Suffix]]
 +
[[Category:Z80]]
 +
[[Category:6800]]

Revision as of 15:34, 23 December 2020

Home * Engines * LogiChess

LogiChess,
the first chess program by Kaare Danielsen developed in 1981 for the Z80 processor. It competed at the 2nd European MCC 1981 (3rd place) [1] and two World Microcomputer Chess Championships in 1981 and 1983, at times supported by Hartvig Ekner [2].

SciSys & CXG

As 4K dedicated chess computer, LogiChess was ported to the 6800 instruction set compatible Hitachi HD6301V1 and Newcrest 6301 8-bit controllers. It was sold in approximately 200.000 units [3] from SciSys as SciSys Explorer, SciSys Concord II and SciSys Companion II, and from RadioShack as Tandy 1650 [4]. Another 4K [5] branch was realized for Newcrest Technology, for the CXG Computachess III in 1984 [6], as well inside the CXG Star Chess of 1985 [7] [8]. According to its author, LogiChess is still the strongest 4K chess computer in the world [9].

Lexibook

The Motorola 6800 LogiChess branch was still in production in the 2000s, as used in all the Lexibook computers [10] with 68HC08 compatible microcontrollers [11] [12] [13] [14].

Selected Games

WMCCC 1983, round 1, 65 Cyrus X - LogiChess 2.2 [15]

[Event "WMCCC 1983"]
[Site "Budapest, Hungary"]
[Date "1983.10.13"]
[Round "1"]
[White "65 Cyrus X"]
[Black "LogiChess 2.2"]
[Result "0-1"]

1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.e3 Nc6 5.Be2 Ne4 6.Nxe4 dxe4 7.c5 Qg5 8.g3 Qf5 
9.Bg4 Qd5 10.Bd2 h5 11.Be2 e5 12.Bc3 h4 13.Bb5 hxg3 14.Bxc6+ Qxc6 15.fxg3 Be6 
16.h4 b6 17.cxb6 axb6 18.a4 exd4 19.Qxd4 f6 20.Qd1 Bc5 21.Ne2 Bxe3 22.Nd4 Qd6 
23.Ne2 Qxd1+ 24.Kxd1 Rxa4 25.Kc2 b5 26.Rxa4 bxa4 27.Bd4 Bh6 28.Nc3 Bb3+ 29.Kb1 
f5 30.g4 fxg4 31.Nxe4 O-O 32.Re1 Rf3 33.Ng5 Bxg5 34.hxg5 Rd3 35.g6 Rd1+ 36.Rxd1 
Bxd1 37.Kc1 Bf3 38.Kd2 Be4 39.Ke3 Bxg6 40.Be5 c5 41.Kf4 Bh5 42.Kg5 g6 43.Kf6 c4 
44.Ke6 c3 45.bxc3 a3 46.c4 a2 47.c5 g3 48.c6 g2 49.Bd4 g1=Q 50.Bxg1 a1=Q 51.Bc5 
Bg4+ 52.Kd6 Bf3 53.Bf2 Qd1+ 54.Kc7 Qc1 55.Bg3 Qxc6+ 56.Kd8 Bg4 57.Ke7 Qe6+ 
58.Kd8 Qd7# 0-1 

See also

External Links

References

Up one level