LL Chess

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**LL Chess**,
a chess program with focus on [[Chess Problem Solving Engines|solving]] [[Checkmate|mates]] written by [[Leonid Liberman]] in [[x86]] [[Assembly|assembly]] to run under [[MS-DOS|DOS]], last modified in May 2001, still in it's beta stage <ref>[[http://www.theparticle.com/chess.html|LL Chess Game - End of the World Production, LLC.]]</ref>. LL Chess represents the board as plain [[8x8 Board|8x8 mailbox]]. The [[Search|search]] uses several [[Brute-Force|brute-force]] and [[Selectivity|selective]] layers. 
[[#PointValues]]
=Positional Logic=
The so called positional logic, the logic of material exchange between the two sides takes following [[Point Value|point values]] into account, as given in Leonid's //Chess Introduction// <ref>[[http://www.theparticle.com/chess000.html|Chess Introduction]] by [[Leonid Liberman]]</ref>. 
||~ Piece ||~ Score ||
|| Pawn ||> 2000  ||
|| Knight ||> 4800  ||
|| Bishop ||> 4825 ||
|| Rook ||> 9100 ||
|| Queen ||> 18000 ||
|| King ||> 80000 ||

=Forum Posts=
* [[http://www.stmintz.com/ccc/index.php?id=69483|Please, say in few words what can reduce the "branching factor"]] by [[Leonid Liberman|Leonid]], [[CCC]], September 19, 1999 » [[Branching Factor]]
* [[http://www.stmintz.com/ccc/index.php?id=69647|number of moves in position]] by [[Leonid Liberman|Leonid]], [[CCC]], September 19, 1999
* [[http://www.stmintz.com/ccc/index.php?id=86662|What is the q-search?]] by [[Leonid Liberman|Leonid]], [[CCC]], January 07, 2000 » [[Quiescence Search]]
* [[http://www.stmintz.com/ccc/index.php?id=104182|Branching factor, make me confuse more that ever]] by [[Leonid Liberman|Leonid]], [[CCC]], April 01, 2000
* [[http://www.stmintz.com/ccc/index.php?id=114696|What is the average nodes per second for minimax?]] by [[Leonid Liberman|Leonid]], [[CCC]], June 15, 2000 » [[Nodes per second]]
* [[http://www.stmintz.com/ccc/index.php?id=121111|Is the NPS tend to grow at the end of the game?]] by [[Leonid Liberman|Leonid]], [[CCC]], July 22, 2000
* [[http://www.talkchess.com/forum/viewtopic.php?t=56455|Remember Leonid Liberman (author of LLCHESS)?]] by [[Dann Corbit]], [[CCC]], May 23, 2015

=External Links=
* [[http://www.theparticle.com/chess.html|LL Chess Game - End of the World Production, LLC.]]
* [[http://www.theparticle.com/chess000.html|Chess Introduction]] by [[Leonid Liberman]]
* [[http://www.theparticle.com/chess001.html|Procedure for finding the Check]] by [[Leonid Liberman]]
* [[http://www.theparticle.com/chess002.html|New Ideas]] by [[Leonid Liberman]]

=References= 
<references />
=What links here?= 
[[include page="LL Chess" component="backlinks" limit="10"]]
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