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'''[[Main Page|Home]] * [[Engines]] * RattateChess'''
[[FILE:PotsdamBabelsbergFilmpark.jpg|border|right|thumb|200px| Nosferatu Fountain <ref>Image by Joergsam, Septermber 2011, [https://en.wikipedia.org/wiki/Babelsberg_Studio Filmpark Babelsberg], [https://de.wikipedia.org/wiki/Nosferatu_%E2%80%93_Eine_Symphonie_des_Grauens Nosferatu – Eine Symphonie des Grauens - Wikipedia.de], [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]]
'''RattateChess''', (RattateChess Nosferatu)<br/>
a [[Chess Engine Communication Protocol]] compliant [[:Category:Open Source|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RattateChess is announced to be superseded by its successor under development, [[RattatAjedrez]], written in much cleaner code, with focus on [[Automated Tuning|automatic tuning]] of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> .
=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 control]] 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=
* [[RattatAjedrez]]
=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==
* [https://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]]
* [https://ccrl.chessdom.com/ccrl/404/cgi/engine_details.cgi?match_length=30&print=Details&each_game=1&eng=RattateChess%201.0%20Nosferatu RattateChess 1.0 Nosferatu] in [[CCRL|CCRL 40/4]]
==Misc==
* [https://en.wikipedia.org/wiki/Rat Rat from Wikipedia]
* [http://it.wikipedia.org/wiki/Rattata Rattata - Wikipedia.it]
* [https://en.wikipedia.org/wiki/List_of_Pok%C3%A9mon_%281%E2%80%9351%29#Rattata Rattata - List of Pokémon - Wikipedia]
==Nosferatu==
* [https://en.wikipedia.org/wiki/Nosferatu_%28disambiguation%29 Nosferatu (disambiguation) from Wikipedia]
* [https://en.wikipedia.org/wiki/Nosferatu Nosferatu from Wikipedia]
* [https://en.wikipedia.org/wiki/Nosferatu_%28word%29 Nosferatu (word) from Wikipedia]
* [[:Category:John Zorn|John Zorn]] - [https://en.wikipedia.org/wiki/Nosferatu_(John_Zorn_album) Nosferatu] (2012), [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: {{#evu:https://www.youtube.com/watch?v=C5d68qprO2E|alignment=left|valignment=top}}
=References=
<references />
'''[[Engines|Up one level]]'''
[[Category:Open Source]]
[[Category:GPL]]
[[Category:WinBoard]]
[[Category:XBoard]]
[[Category:Comics|Comics]]
[[Category:Demonology]]
[[Category:Fiction]]
[[Category:Mammal]]
[[Category:John Zorn]]
[[FILE:PotsdamBabelsbergFilmpark.jpg|border|right|thumb|200px| Nosferatu Fountain <ref>Image by Joergsam, Septermber 2011, [https://en.wikipedia.org/wiki/Babelsberg_Studio Filmpark Babelsberg], [https://de.wikipedia.org/wiki/Nosferatu_%E2%80%93_Eine_Symphonie_des_Grauens Nosferatu – Eine Symphonie des Grauens - Wikipedia.de], [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]]
'''RattateChess''', (RattateChess Nosferatu)<br/>
a [[Chess Engine Communication Protocol]] compliant [[:Category:Open Source|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> .
=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 control]] 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=
* [[RattatAjedrez]]
=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==
* [https://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]]
* [https://ccrl.chessdom.com/ccrl/404/cgi/engine_details.cgi?match_length=30&print=Details&each_game=1&eng=RattateChess%201.0%20Nosferatu RattateChess 1.0 Nosferatu] in [[CCRL|CCRL 40/4]]
==Misc==
* [https://en.wikipedia.org/wiki/Rat Rat from Wikipedia]
* [http://it.wikipedia.org/wiki/Rattata Rattata - Wikipedia.it]
* [https://en.wikipedia.org/wiki/List_of_Pok%C3%A9mon_%281%E2%80%9351%29#Rattata Rattata - List of Pokémon - Wikipedia]
==Nosferatu==
* [https://en.wikipedia.org/wiki/Nosferatu_%28disambiguation%29 Nosferatu (disambiguation) from Wikipedia]
* [https://en.wikipedia.org/wiki/Nosferatu Nosferatu from Wikipedia]
* [https://en.wikipedia.org/wiki/Nosferatu_%28word%29 Nosferatu (word) from Wikipedia]
* [[:Category:John Zorn|John Zorn]] - [https://en.wikipedia.org/wiki/Nosferatu_(John_Zorn_album) Nosferatu] (2012), [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: {{#evu:https://www.youtube.com/watch?v=C5d68qprO2E|alignment=left|valignment=top}}
=References=
<references />
'''[[Engines|Up one level]]'''
[[Category:Open Source]]
[[Category:GPL]]
[[Category:WinBoard]]
[[Category:XBoard]]
[[Category:Comics|Comics]]
[[Category:Demonology]]
[[Category:Fiction]]
[[Category:Mammal]]
[[Category:John Zorn]]
