Xian

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**Xian**,
an early [[Chinese Chess]] program by [[Nick Jacobs]] which was commercially available in 1988 for the [[IBM PC]] running under [[MS-DOS|DOS]], later also ported to [[Windows]] <ref>[[https://groups.google.com/d/msg/rec.games.chinese-chess/Ipm0l8FEZHk/epe1FkNdvSQJ|Re: rec.games.chinese-chess FAQ (Part 2 of 2)]] by [[Nick Jacobs]], [[Computer Chess Forums|rec.games.chinese-chess]], December 19, 1994</ref>. Xian played the [[1st Computer Olympiad#ChineseChess|1st Computer Olympiad,London 1989]] <ref>[[https://www.game-ai-forum.org/icga-tournaments/program.php?id=327|Xian's ICGA Tournaments]]</ref>. Xian guarantees never to make an illegal repetitive move, but still lacks the knowledge to handle cases when a repetition would be legal - and in some cases it allows the opponent to make an illegal repetitive move <ref>[[Chun Ye]], [[Tony Marsland]] (**1992**). //Selective Extensions in Game-Tree Search.// [[3rd Computer Olympiad#Workshop|Heuristic Programming in AI 3]], [[https://webdocs.cs.ualberta.ca/~tony/RecentPapers/SelectiveExten-YeMars.pdf|pdf]]</ref>.

=Screenshot=
|| [[image:Xian.jpg]] ||
|| Xian's DOS Screen with on-line tutorial <ref>Robert Nisonoff, M. Stephanie Ricks (**1988**). //To Catch a King: East Meets West in the Game of Chess//. [[PC Magazine]], October 31, 1988, pp. 506</ref> ||

=Selected Publications=
* Robert Nisonoff, M. Stephanie Ricks (**1988**). //To Catch a King: East Meets West in the Game of Chess//. [[PC Magazine]], October 31, 1988, pp. 506 » [[EGA Chess]]
* [[Nick Jacobs]] (**1989**). //Xian, a Chinese Chess Program//. [[1st Computer Olympiad#Workshop|Heuristic Programming in AI 1]]

=Forum Posts=
* [[https://groups.google.com/d/msg/rec.games.chinese-chess/4lorUoAbEME/FAmEa1DpSakJ|rec.games.chinese-chess FAQ]] by Stephen Leary, [[Computer Chess Forums|rec.games.chinese-chess]], January 04, 1994
* [[https://groups.google.com/d/msg/rec.games.chinese-chess/SDVVm5Po0sE/dVBbKIfVmLEJ|Re: Chinese Chess Computer Program]] by [[Nick Jacobs]], [[Computer Chess Forums|rec.games.chinese-chess]], July 04, 1994
* [[https://groups.google.com/d/msg/rec.games.chinese-chess/NLSGEYsFsa0/QFWoNf8QkCUJ|Re: Chess program recommendations wanted]] by [[Nick Jacobs]], [[Computer Chess Forums|rec.games.chinese-chess]], October 25, 1994

=External Links=
* [[https://www.game-ai-forum.org/icga-tournaments/program.php?id=327|Xian's ICGA Tournaments]]

=References= 
<references />
=What links here?= 
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