Difference between revisions of "LogiChess"
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'''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 | + | 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 |
[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>. | ||
Revision as of 22:41, 4 June 2020
LogiChess,
the first chess program by Kaare Danielsen developed in 1981 for an Intel 8048 compatible 80C50 CMOS microcontroller with 4 KiB internal EPROM and only 256 byte internal RAM, and a clock frequency of 3.6 resp. 7.2 MHz. 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 dedicated chess computer, LogiChess 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 branch was realized for Newcrest Technology, for the 6800 instruction set compatible Hitachi HD6301V1 8-bit controller for the CXG Computachess III in 1984 [5], as well the Newcrest 6301V [6] 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
- ↑ Logichess by the 17-year-old Danish schoolboy Kaare Danielsen was 3rd, from Chess Computers - The UK Story from Chess Computer UK by Mike Watters
- ↑ Frederic Friedel (1984). Move from the East. Report of the WMCCC 1983, Personal Computer World, January 1984
- ↑ Resume for Kaare Danielsen
- ↑ Tandy 1650 from Schachcomputer.info Wiki
- ↑ CXG Computachess III from Schachcomputer.info Wiki (German)
- ↑ 6301V from Schachcomputer.info Wiki
- ↑ CXG Star Chess from Schachcomputer.info Wiki
- ↑ Danielsen, Kaare from Schachcomputer.info Wiki
- ↑ Resume for Kaare Danielsen
- ↑ Lexibook Electronic Chess Computers from The Spacious Mind
- ↑ Danielsen, Kaare from Schachcomputer.info Wiki
- ↑ Lexibook Travel Chess Explorer Electronic Chess Computer from The Spacious Mind
- ↑ Lexibook ChessMan Pro Electronic Chess Computer from The Spacious Mind
- ↑ Lexibook Travel Chess from Schachcomputer.info Wiki (German)
- ↑ Budapest 1983 - Chess - Round 1 - Game 2 (ICGA Tournaments)