RattateChess

**[[Home]] * [[Engines]] * RattateChess**
|| [[image:NosferatuShadow.jpg width="288" height="205" link="http://en.wikipedia.org/wiki/File:NosferatuShadow.jpg"]] ||~   || **RattateChess**, (RattateChess Nosferatu)
a [[Chess Engine Communication Protocol]] compliant [[Open Source Engines|open source chess engine]] by [[Maurizio Monge]], written in [[Cpp|C++]], released under the [[Free Software Foundation#GPL|GNU GPL]], first announced in November 2002 <ref>[[http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=39916&p=152540|New Chess Engine ?]] by [[Benny Antonsson]], [[Computer Chess Forums|Winboard Forum]], November 13, 2002</ref> . RattateChess played a strong [[CIPS 2007]], becoming fourth with 4/6. RattateChess Nosferatu played the [[IGWT 2013|I.G.W.T. 2013]], where it lost from [[Gaviota]] in the round of sixteen.
RattateChess is announced to be superseded by its successor under development, [[RattatAjedrez]], written in much cleaner code, with focus on [[Automated Tuning|automatic tuning]] of [[Evaluation|evaluation]] features and [[Search|search]] parameters <ref>[[https://sites.google.com/site/rattatajedrez/|RattatAjedrez]]</ref> . ||
|| An iconic scene of [[http://en.wikipedia.org/wiki/Nosferatu|Nosferatu]] <ref>A screenshot of the 1922 film, [[http://en.wikipedia.org/wiki/Nosferatu|Nosferatu]] with [[http://en.wikipedia.org/wiki/Max_Schreck|Max Schreck]] as [[http://en.wikipedia.org/wiki/Count_Orlok|Count Orlok]]</ref> ||~   ||^   ||
[[toc]]
=Description= 
==Search== 
Using a [[0x88]] board representation, RattateChess performs [[NegaScout]] [[Alpha-Beta|alpha-beta]] with [[Null Move Pruning|null move pruning]] and [[Mate Threat Extensions|threat extensions]], [[Transposition Table|transposition table]] and [[Internal Iterative Deepening|IID]] inside a [[Depth#FractionalPlies|fractional ply]] [[Iterative Deepening|iterative deepening]] framework with 1/100 ply resolution. Beside [[Quiescence Search|quiescence search]], further [[Selectivity|selectivity]] is realized by [[Late Move Reductions|history reductions]], [[Futility Pruning|futility pruning]], [[Recapture Extensions|recapture extensions]], and [[One Reply Extensions|single-reply extension]].

==Evaluation== 
The [[Evaluation|evaluation]] considers [[Material|material]] through [[Piece-Square Tables|piece-square tables]] for knights and bishops, [[Bishop Pair|bishop pair]], [[Pawn Structure|pawn structure]] addressing [[Backward Pawn|backward]], [[Isolated Pawn|isolated]], [[Doubled Pawn|doubled]] and [[Passed Pawn|passed pawns]], [[Development|development]], [[Square Control|square-]] and [[Center Control|center control]], [[Rook on open file|rook on (semi) open files]] and [[Rook on seventh|seventh rank]], and [[King Safety|king safety]] through (half) open neighbored files, and [[King Safety#KingTropism|king piece]] and piece attack tropism.

=See also= 
* [[Various Classifications#Comics|Comics]]
* [[Various Classifications#Demonology|Demonology]]
* [[Various Classifications#Fiction|Fiction]]
* [[Various Classifications#Mammal|Mammal]]

=Forum Posts= 
* [[http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=39916&p=152540|New Chess Engine ?]] by [[Benny Antonsson]], [[Computer Chess Forums|Winboard Forum]], November 13, 2002
* [[http://www.open-aurec.com/wbforum/viewtopic.php?f=2&t=3646&p=18472|Rattatechess 0.666 alpha windows build]] by [[Jim Ablett]], [[Computer Chess Forums|Winboard Forum]], October 09, 2005
* [[http://www.talkchess.com/forum/viewtopic.php?t=32879|Rattatechess new version and website]] by [[Alex Brunetti]], [[CCC]], February 24, 2010

=External Links= 
==Chess Engine== 
* [[http://repo.or.cz/w/rattatechess.git|Public Git Hosting - rattatechess.git/summary]]
* [[https://sites.google.com/site/rattatajedrez/|RattatAjedrez]]
* [[http://kirr.homeunix.org/chess/engines/Jim%20Ablett/RATTATECHESS/|Index of /chess/engines/Jim Ablett/RATTATECHESS]] by [[Jim Ablett]], hosted by [[Kirill Kryukov]]
* [[http://kirr.homeunix.org/chess/engines/Jim%20Ablett/+++%20LINUX%20ENGINES%20++/32%20BIT/rattatechess-nosferatu/|Index of /chess/engines/Jim Ablett/+++ LINUX ENGINES ++/32 BIT/rattatechess-nosferatu]] by [[Jim Ablett]], hosted by [[Kirill Kryukov]]
* [[http://wbec-ridderkerk.nl/html/details1/Rattate.html|Rattatechess]] from [[WBEC|WBEC Ridderkerk]]
* [[http://www.computerchess.org.uk/ccrl/404/cgi/engine_details.cgi?print=Details&each_game=1&eng=RattateChess+1.0+Nosferatu|RattateChess 1.0 Nosferatu]] in [[CCRL|CCRL 40/4]]
* [[http://www.computerchess.org.uk/ccrl/4040/cgi/engine_details.cgi?print=Details&each_game=1&eng=RattateChess+1.0+Nosferatu|RattateChess 1.0 Nosferatu]] in [[CCRL|CCRL 40/40]]
==Misc== 
* [[http://it.wikipedia.org/wiki/Rattata|Rattata - Wikipedia.it]]
* [[http://en.wikipedia.org/wiki/List_of_Pok%C3%A9mon_%281%E2%80%9351%29#Rattata|Rattata - List of Pokémon - Wikipedia]]
* [[http://en.wikipedia.org/wiki/Nosferatu_%28word%29|Nosferatu (word) from Wikipedia]]
* [[http://en.wikipedia.org/wiki/Nosferatu|Nosferatu from Wikipedia]]
* [[http://en.wikipedia.org/wiki/Nosferatu_%28disambiguation%29|Nosferatu (disambiguation) from Wikipedia]]
* [[http://en.wikipedia.org/wiki/Rat|Rat from Wikipedia]]

=References= 
<references />
=What links here?= 
[[include page="RattateChess" component="backlinks" limit="20"]]
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