Fischerle

**[[Home]] * [[Engines]] * Fischerle**
|| [[image:fischerlelogo.jpg width="302" height="191" link="http://www.stuckardt.de/index.php/schachengine-fischerle.html"]] ||~   || **Fischerle**,
a [[Java|Java-based]] chess engine that has been developed by [[Roland Stuckardt]]. Fischerle implements the [[UCI]] protocol. It is recommended to employ it from within the [[Arena]] environment. Additionally, Fischerle has an own [[GUI]] providing supplementary configuration and testing features; in principle, it can thus be used independently of UCI based chess GUIs. Fischerle is available for download at its author's web pages . ||
|| Fischerle Logo ||~   ||^   ||
[[toc]]
=Technology= 
Fischerle’s representation of chess positions is based on the [[Rotated Bitboards|rotated bitboard]] model. Fischerle employs some well-known techniques of enhanced [[Alpha-Beta|alpha-beta]] minimax search:
* [[NegaScout]] algorithm
* [[Iterative Deepening|Iterative deepening (ID)]] and [[Internal Iterative Deepening|IID]]
* [[Aspiration Windows|Aspiration windows]]
* [[History Heuristic|History heuristic]]
* [[Killer Heuristic|Killer heuristic]]
* [[Hash Table|Hash tables]]
> [[Transposition Table|Transposition table]]
> [[Evaluation Hash Table|Evaluation cache]]
* [[Quiescence Search|Quiescence search]]
* [[Extensions|Search extensions:]]
> [[Promotions]]
> [[Passed Pawn Extensions|7th rank Passed pawn extensions]]
> [[Check Extensions|Check evasions]] only by a singular / a few moves
> [[Recapture Extensions|Winning recaptures]]
> [[Singular extensions]] (restricted implementation that doesn't apply at [[Node Types|Cut nodes]] and that considers only [[transposition table]] moves as singularity candidates the value of which is marked there as exact or lower bound)
> extension by several plies at the very moment a [[@pawn endgame]] is reached
* [[Tactics|Tactically]] painless [[Reductions|reductions]] according to the [[AEL-Pruning|enhanced model]] suggested by [[Ernst A. Heinz]]
> [[Null Move Pruning#AdaptiveNullMovePruning|Adaptive Null Move Pruning]]
> [[Futility Pruning#Extendedfutilityprunning|Extended Futility Pruning]]
> [[Razoring#LimitedRazoring|Limited Razoring]]
* [[@Late Move Reductions]]
* [[Interior Node Recognizer|Interior node recognition]] similar to Heinz’s proposal <ref>[[Ernst A. Heinz]] (**1998**). //[[http://people.csail.mit.edu/heinz/dt/node33.html|Efficient Interior-Node Recognition]].// [[ICGA Journal#21_3|ICCA Journal, Vol. 21, No. 3]]</ref>
* Dedicated scoring functions for some particular [[Endgame|endgame]] types

The static [[Evaluation|evaluation]] parameters of Fischerle are amenable to external fine tuning based on a concept of so-called efb (//evaluation factor block//) files, thus enabling the user to influence, within certain bounds, Fischerle’s playing style (e. g. to prefer closed positions, etc.). Fischerle comes with its own, small [[Opening Book|opening book]], covering about 220K positions and some 540K moves. Fischerle supports [[Pondering|pondering]] via its [[UCI]] interface.

=Performance= 
According to extensive test tournaments, Fischerle is sufficiently well equipped with chess wit in order to compete in the CCRL 40/40 Elo 2250-2350 range. <span class="doclink">[[@http://www.computerchess.org.uk/ccrl/4040/cgi/engine_details.cgi?match_length=30&each_game=1&print=Details&each_game=1&eng=Fischerle%200.9.70%20SE%2064-bit#Fischerle_0_9_70_SE_64-bit|Fischerle 0.9.70 SE]] has been ranked at place 235 of the [[@http://www.computerchess.org.uk/ccrl/4040/index.html|CCRL 40/40 list]] with a CCRL 40/40 Elo score of 2291 (March 25, 2017)</span>.

=Latest Version= 
[[http://www.stuckardt.de/rsdokumente/Fischerle_0_9_80_SE_64_or_32.rar|Fischerle 0.9.80 SE]] (March 24, 2017) - <span style="font-family: Verdana;">a slightly more aggressive forward [[pruning]] scheme is now applied; [[quiescence search]] has been mildly refined (adding, in particular, [[delta pruning]]); the piece value assigned to [[bishop|bishops]] and the [[bishop pair]] bonus have been slightly reduced; <span style="font-family: Verdana;">[[king safety]] ealuation has been refined; the </span>mate approaching scheme has been enhanced.</span>

=Etymology= 
//"Ein Mensch, was ka Schach spielt, ist ka Mensch"// <ref>"A person who does not play chess, is not a man", [[http://en.wikipedia.org/wiki/Direct_speech|direct speech]] in [[http://en.wikipedia.org/wiki/Viennese_German|Viennese German]] of Fischerle to [[http://en.wikipedia.org/wiki/Auto-da-F%C3%A9#Plot_and_themes|Kien]], in
[[http://en.wikipedia.org/wiki/Elias_Canetti|Elias Canetti]] (**1936**). //[[http://de.wikipedia.org/wiki/Die_Blendung|Die Blendung]]//. Wien 1936, [[http://en.wikipedia.org/wiki/Editio_princeps|Editio princeps]], p. 191.</ref>

==Auto-da-Fé== 
|| [[image:DieBlendung.jpg link="https://www.dorisneidl.net/illustration?lightbox=image_14xa"]] ||~   || Fischerle <ref>Fischerle - [[https://en.wikipedia.org/wiki/Diminutive|Diminutive form]] of [[https://en.wikipedia.org/wiki/Fischer|Fischer]]</ref> is named after a famous character of [[http://en.wikipedia.org/wiki/Elias_Canetti|Elias Canetti’s]] novel [[http://de.wikipedia.org/wiki/Die_Blendung|„Die Blendung“]] ([[http://en.wikipedia.org/wiki/Auto-da-F%C3%A9|„Auto-da-Fé“]]) <ref>[[https://en.wikipedia.org/wiki/Auto-da-f%C3%A9|Auto-da-fé from Wikipedia]]</ref> <ref>[[http://members4.boardhost.com/readliterature/msg/1266773491.html|Talk Literature: Auto-da-Fé - Elias Canetti]] by Lale, February 21, 2010</ref> , which plays in [[https://en.wikipedia.org/wiki/Vienna|Vienna]] <ref>[[http://en.wikipedia.org/wiki/History_of_the_Jews_in_Vienna|History of the Jews in Vienna - from Wikipedia]]</ref> around protagonist [[http://en.wikipedia.org/wiki/Auto-da-F%C3%A9#Plot_and_themes|Peter Kien]], a middle-aged philologist and [[http://en.wikipedia.org/wiki/Sinology|Sinologist]]: **Siegfried Fischerle** <ref>[[http://www.worldcat.org/search?q=au%3ARiedner%2C+Nicola.&qt=hot_author|Nicola Riedner]] (**1994**). //[[http://www.worldcat.org/title/canettis-fischerle-eine-figur-zwischen-masse-macht-und-blendung/oclc/30632821&referer=brief_results|Canettis Fischerle: eine Figur zwischen Masse, Macht und Blendung]]//. [[http://en.wikipedia.org/wiki/K%C3%B6nigshausen_%26_Neumann|Königshausen und Neumann]], page 40, footnote 174, [[http://books.google.de/books?id=P87wy187bqAC&lpg=PA1&vq=page%2040&hl=de&pg=PA40#v=onepage&q&f=true|Google books]], "Peter Jansen behauptet fälschlicherweise, daß Fischerle eigentlich Fischer hieße und nur aufgrund seiner Gestalt das Verkleinerungssuffix durch andere hinzubekommen hätte". Peter Jansen (**1980**). //Die Komik des Sprechens. Zur sprachlich-ästhetischen Erfahrung des Komischen am Beispiel von Canettis Roman "Die Blendung"//. in [[http://de.wikipedia.org/wiki/Sprache_im_technischen_Zeitalter|Sprache im technischen Zeitalter]], 76</ref> , a [[http://en.wikipedia.org/wiki/Jews|Jewish]] <ref>further in [[http://www.worldcat.org/search?q=au%3ARiedner%2C+Nicola.&qt=hot_author|Nicola Riedner]] (**1994**). //[[http://www.worldcat.org/title/canettis-fischerle-eine-figur-zwischen-masse-macht-und-blendung/oclc/30632821&referer=brief_results|Canettis Fischerle: eine Figur zwschischen Masse, Macht und Blendung]]//. [[http://en.wikipedia.org/wiki/K%C3%B6nigshausen_%26_Neumann|Königshausen und Neumann]], page 41-42, During the time of writing of the novel (1930/31) the German given name [[http://en.wikipedia.org/wiki/Siegfried_%28given_name%29|Siegfried]] for Jewish children was indication of Jewish will for [[http://en.wikipedia.org/wiki/Cultural_assimilation|assimilation]], footnote 179, Konrad Krause (**1943**). //[[http://www.worldcat.org/title/judische-namenwelt/oclc/2041274|Die jüdische Namenswelt]]//. [[http://de.wikipedia.org/wiki/Essener_Verlagsanstalt|Essener Verlagsanstalt]], Publisher of the [[http://en.wikipedia.org/wiki/Nazi_Party|Nazi Party]], S. 11, "Denn es ist bekannt, in welchem Ausmaß die Juden [...] unsere herrlichen alten Namen z.T. nahezu entwertet haben. Dieses Schicksal erlitten besonders die 'Sieg'namen ..."</ref> [[http://en.wikipedia.org/wiki/Kyphosis|hunchbacked]] [[https://en.wikipedia.org/wiki/Dwarf|dwarf]] and [[https://en.wikipedia.org/wiki/Procuring_%28prostitution%29|pander]], is a [[Morphy#ChessFever|chess addict]] whose dream is it to go to America to challenge chess champion [[http://en.wikipedia.org/wiki/Jos%C3%A9_Ra%C3%BAl_Capablanca|José Raúl Capablanca]] in order to get rich and famous. Canetti wrote his novel in the years 1930/31, coincidentally more than one decade before [[http://en.wikipedia.org/wiki/Nazi_Germany|Nazi German]] [[http://en.wikipedia.org/wiki/Feldwebel#Reichswehr_and_Wehrmacht|Oberfeldwebel]] [[http://en.wikipedia.org/wiki/Siegfried_Fischer|Siegfried Fischer]] was decorated with the [[http://en.wikipedia.org/wiki/Knight%27s_Cross_of_the_Iron_Cross|Knight's Cross of the Iron Cross]], Jewish artist and poet [[http://en.wikipedia.org/wiki/Peter_Kien|Peter Kien]] died in [[http://en.wikipedia.org/wiki/Auschwitz_concentration_camp|Auschwitz concentration camp]], and more than two decades before chess genius [[https://en.wikipedia.org/wiki/Bobby_Fischer|Bobby Fischer]] entered the international chess scene <ref>Bobby Fischer, whose mother was Jewish, and whose possible biological father was also Jewish, made numerous [[http://en.wikipedia.org/wiki/Antisemitism|Anti-semitic]] statements, see [[http://en.wikipedia.org/wiki/Bobby_Fischer#Anti-semitic_statements|Bobby Fischer - Anti-semitic statements - from Wikipedia]]</ref> . ||
|| Die Blendung by [[Arts#DorisNeidl|Doris Neidl]] <ref>[[https://www.dorisneidl.net/illustration|Die Blendung - Illustrations - Gallery]], capturing the crazy and wondrous journey of [[https://en.wikipedia.org/wiki/Sinology|Sinologist]] [[http://en.wikipedia.org/wiki/Auto-da-F%C3%A9#Plot_and_themes|Peter Kien]]. Copyright © 2013 by [[Arts#DorisNeidl|Doris Neidl]]</ref> ||~   ||^   ||

==Publications== 
<ref>[[http://www.tour-literatur.de/sekundlit_autoren/canetti_sekundlit.htm|Elias Canetti: Sekundärliteratur]] (German)</ref>
* [[http://en.wikipedia.org/wiki/Elias_Canetti|Elias Canetti]] (**1936**). //[[http://de.wikipedia.org/wiki/Die_Blendung|Die Blendung]]//. Wien 1936, [[http://en.wikipedia.org/wiki/Editio_princeps|Editio princeps]] (German)
* [[http://en.wikipedia.org/wiki/Elias_Canetti|Elias Canetti]] (**1946**). //[[http://en.wikipedia.org/wiki/Auto-da-F%C3%A9|Auto-da-Fe]]//. Translated by [[http://en.wikipedia.org/wiki/Veronica_Wedgwood|Veronica Wedgwood]]
* Peter Jansen (**1980**). //Die Komik des Sprechens. Zur sprachlich-ästhetischen Erfahrung des Komischen am Beispiel von Canettis Roman "Die Blendung"//. in [[http://de.wikipedia.org/wiki/Sprache_im_technischen_Zeitalter|Sprache im technischen Zeitalter]], 76 (German)
* [[http://www.worldcat.org/search?q=au%3ARiedner%2C+Nicola.&qt=hot_author|Nicola Riedner]] (**1994**). //[[http://www.worldcat.org/title/canettis-fischerle-eine-figur-zwischen-masse-macht-und-blendung/oclc/30632821&referer=brief_results|Canettis Fischerle: eine Figur zwschischen Masse, Macht und Blendung]]//. [[http://en.wikipedia.org/wiki/K%C3%B6nigshausen_%26_Neumann|Königshausen und Neumann]] (German)
* [[http://www.barnesandnoble.com/c/harriet-murphy|Harriet Murphy]] (**1996**). //[[http://www.barnesandnoble.com/w/canetti-and-nietzsche-harriet-murphy/1115275227?ean=9780791431337|Canetti and Nietzsche: Theories of Humor in Die Blendung]]//. [[http://en.wikipedia.org/wiki/State_University_of_New_York_Press|State University of New York Press]] <ref>[[http://en.wikipedia.org/wiki/Friedrich_Nietzsche|Friedrich Nietzsche from Wikipedia]]</ref>
* [[http://en.wikipedia.org/wiki/Ritchie_Robertson|Ritchie Robertson]] (**1999**). //[[http://www.questia.com/library/1826902/the-jewish-question-in-german-literature-1749-1939|The 'Jewish Question' in German Literature 1749 - 1939 Emancipation and Discontents]]//. [[http://en.wikipedia.org/wiki/Oxford_University_Press|Oxford University Press]] <ref>[[http://en.wikipedia.org/wiki/Jewish_question|Jewish question from Wikipedia]]</ref>
* [[http://fds.duke.edu/db/aas/German/wcd2|William Collins Donahue]] (**2001**). //[[http://www.questia.com/library/104788411/the-end-of-modernism-elias-canetti-s-auto-da-fae|The End of Modernism : Elias Canetti's Auto-da-fâe]]//. [[https://en.wikipedia.org/wiki/University_of_North_Carolina_Press|University of North Carolina Press]] <ref>[[http://fds.duke.edu/db/aas/German/faculty/wcd2/publications|German: Willkommen]]</ref>
* [[http://www.barnesandnoble.com/c/marcus-puknatis|Marcus Puknatis]] (**2002,2007**). //[[http://www.barnesandnoble.com/w/elias-canettis-die-blendung-typische-sterreichische-nationalliteratur-marcus-puknatis/1114561378?ean=9783638802758|Elias Canettis 'Die Blendung' - Typische Österreichische Nationalliteratur?]]// [[https://de.wikipedia.org/wiki/GRIN_Verlag|GRIN Verlag]] (German)
* Yun Chen (**2003**). //[[http://docserv.uni-duesseldorf.de/servlets/DocumentServlet?id=2534|Canetti und die chinesische Kultur]]//. [[http://en.wikipedia.org/wiki/Thesis|Dissertation]], [[http://en.wikipedia.org/wiki/University_of_D%C3%BCsseldorf|Heinrich Heine University Düsseldorf]] (German)
* [[http://mek.oszk.hu/08200/08294/|Hidas Ildikó]] (**2008**). //Elias Canettis Roman Die Blendung im Schnittpunkt zeitgenössischer Diskurse//. Ph.D. thesis, [[http://en.wikipedia.org/wiki/P%C3%A1zm%C3%A1ny_P%C3%A9ter_Catholic_University|Pázmány Péter Catholic University]], [[http://en.wikipedia.org/wiki/Piliscsaba|Piliscsaba]], [[http://mek.oszk.hu/08200/08294/08294.pdf|pdf]] (German)

=Fischers Fritz= 
The German [[http://en.wikipedia.org/wiki/Tongue-twister|tongue-twister]] "Fischers Fritz fischt frische Fische. Frische Fische fischt Fischers Fritz." (Fisher's Fritz fishes fresh fish, fresh fish are fished by fisher's Fritz) is not related to [[http://en.wikipedia.org/wiki/Fritz_Fischer_%28biathlete%29|Fritz Fischer]] but may be to Fischerle's famous brother [[Fritz]]?

=See also= 
* [[Bobby]]
* [[Morphy#Capablanca|Capablanca Edition]]
* [[Morphy#ChessFever|Chess Fever (Shakhmatnaya goryachka)]]
* [[Various Classifications#ChessLegend|Chess legends]]
* [[Various Classifications#Fiction|Fiction]]
* [[Various Classifications#Fish|Fish]]

=Forum Posts= 
==2014== 
* [[http://www.talkchess.com/forum/viewtopic.php?t=50858|Nice move by Fischerle (Division 7 engine in my Amateurs)]] by [[Graham Banks]], [[CCC]], January 11, 2014
* [[http://www.talkchess.com/forum/viewtopic.php?t=51250|A good 64-bit Java chess engine unknown here]] by [[http://www.talkchess.com/forum/profile.php?mode=viewprofile&u=881|Ruxy Sylwyka]], [[CCC]], February 12, 2014
* [[http://www.talkchess.com/forum/viewtopic.php?t=51324|No GUI problems with Fischerle]] by [[Norbert Raimund Leisner]], [[CCC]], February 18, 2014
* [[http://www.talkchess.com/forum/viewtopic.php?t=51279&start=3|Re: 32-bit and 64-bit java engines]] by [[Roland Stuckardt]], [[CCC]], February 24, 2014
* [[http://www.talkchess.com/forum/viewtopic.php?t=52327|New Fischerle Versions (64 and 32 Bit)]] by [[Roland Stuckardt]], [[CCC]], May 15, 2014
* [[http://www.talkchess.com/forum/viewtopic.php?t=53967|New Fischerle Version: 0.9.60]] by [[Roland Stuckardt]], [[CCC]], October 07, 2014
==2015 ...== 
* [[http://www.talkchess.com/forum/viewtopic.php?t=57676|New Fischerle Version: 0.9.65]] by [[Roland Stuckardt]], [[CCC]], September 17, 2015
* [[http://www.talkchess.com/forum/viewtopic.php?t=59624|New Fischerle Version: 0.9.70 SE]] by [[Roland Stuckardt]], [[CCC]], March 25, 2016
* [[http://www.talkchess.com/forum/viewtopic.php?t=63546|New Fischerle Version: 0.9.80 SE]] by [[Roland Stuckardt]], [[CCC]], March 24, 2017

=External Links= 
==Chess Engine== 
* [[http://www.stuckardt.de/index.php/schachengine-fischerle.html|Schachengine Fischerle]] (German)
> [[http://www.stuckardt.de/index.php/schachengine-fischerle/techniken-im-ueberblick.html|Schachengine Fischerle - Techniken im Überblick]]
> [[http://www.stuckardt.de/index.php/schachengine-fischerle/benutzeroberflaeche.html|Schachengine Fischerle - Benutzeroberfläche]]
* [[http://www.computerchess.org.uk/ccrl/4040/cgi/engine_details.cgi?match_length=30&each_game=1&print=Details&each_game=1&eng=Fischerle%200.9.65%2064-bit#Fischerle_0_9_65_64-bit|Fischerle 0.9.65 64-bit]] in [[CCRL|CCRL 40/40]]
==Misc== 
* [[https://en.wiktionary.org/wiki/Fischer|Fischer - Wiktionary]]
* [[https://en.wikipedia.org/wiki/Fischer|Fischer from Wikipedia]]
> [[https://en.wikipedia.org/wiki/Bobby_Fischer|Bobby Fischer from Wikipedia]]
* [[https://en.wikipedia.org/wiki/Auto-da-F%C3%A9|Auto-da-Fé from Wikipedia]]
* [[https://en.wikipedia.org/wiki/Fisherman|Fisherman from Wikipedia]]
* [[https://en.wikipedia.org/wiki/Fish|Fish from Wikipedia]]
* [[https://en.wikipedia.org/wiki/Fish_anatomy|Fish anatomy from Wikipedia]]
* [[http://www.muno.pl/news/fischerle-the-big-sleep-u-cover-album-konkurs/|Fischerle]] - The Love Bruises, [[http://en.wikipedia.org/wiki/YouTube|YouTube]] Video
> [[media type="custom" key="24291272"]]

=References= 
<references />
=What links here?= 
[[include page="Fischerle" component="backlinks" limit="40"]]
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