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GerdIsenberg
Nov 29, 2015
[[toc]] **[[Home]] * [[Engines]] * JikChess** **JikChess**, a [[Chess Engine Communication Protocol]] compliant chess engine by [[Janne I. Kokkala]], written in [[Cpp|C++11]]. Its development started in early 2013, and the first version was released in November 2014 <ref>[[http://koti.kapsi.fi/jik/jikchess/#history|JikChess - History]]</ref>. =Features= <ref>based on [[http://koti.kapsi.fi/jik/jikchess/#technical|JikChess - Technical]]</ref> ==Search== * [[Iterative Deepening]] * [[Aspiration Windows]] * [[Alpha-Beta]] [[Principal Variation Search|PVS]] * [[Selectivity]] ** [[Null Move Pruning]] ** [[Late Move Reductions]] ** [[Futility Pruning#Extendedfutilitypruning|Extended Futility Pruning]] ** [[Quiescence Search]] with [[Captures]] and [[Promotions]] only ** [[Check Extensions]] ** [[Extensions#FractionalExtensions|Fractional Ply]] [[PV Extensions]] * [[Move Ordering]] ** [[Transposition Table]] ** [[Captures]] by [[Static Exchange Evaluation|SEE]] ** [[Killer Heuristic]] ** [[Internal Iterative Deepening]] ==Evaluation== * [[Evaluation#Linear|Linear Combination]] of Numerical Positional Features * [[Tapered Eval]] * [[Pawn Hash Table]] * [[Automated Tuning]] ** [[Automated Tuning#LogisticRegression|Logistic Regression]] (Simiar to [[Texel's Tuning Method]]) ** [[https://en.wikipedia.org/wiki/Regularization_%28mathematics%29|Regularization]] - [[https://en.wikipedia.org/wiki/Prior_probability|Prior]] added to the [[https://en.wikipedia.org/wiki/Loss_function|Cost Function]] (encourages unimportant parameters to become zero) ==Misc== * [[PolyGlot]] [[Opening Book]] * [[Gaviota Tablebases]] =Forum Posts= * [[http://www.talkchess.com/forum/viewtopic.php?t=54598|JikChess 0.01 by Janne I. Kokkala]] by [[http://www.talkchess.com/forum/profile.php?mode=viewprofile&u=881|Ruxy Sylwyka]], [[CCC]], December 09, 2014 * [[http://www.talkchess.com/forum/viewtopic.php?t=58016|JikChess 0.02 released]] by [[Graham Banks]], [[CCC]], October 22, 2015 =External Links= * [[http://koti.kapsi.fi/jik/jikchess/|JikChess chess engine]] * [[http://www.computerchess.org.uk/ccrl/4040/cgi/engine_details.cgi?print=Details&each_game=1&eng=JikChess%200.02%2064-bit|JikChess 0.02 64-bit]] in [[CCRL|CCRL 40/40]] =References= <references /> =What links here?= [[include page="JikChess" component="backlinks" limit="20"]] **[[Engines|Up one Level]]**