Cumulus

**[[Home]] * [[Engines]] * Cumulus**
|| [[image:320px-Anvil_of_Cumulonimbus_and_Cu_con.JPG link="https://commons.wikimedia.org/wiki/File:Anvil_of_Cumulonimbus_and_Cu_con.JPG"]] ||~   || **Cumulus**,
a chess program by [[Jean-Christophe Weill]], in association with [[Marc-François Baudot]]. Cumulus played the [[WMCCC 1990]], [[WMCCC 1991]], and [[WCCC 1992]] <ref> [[http://www.game-ai-forum.org/icga-tournaments/program.php?id=225|Cumulus' ICGA Tournaments]]</ref>, the [[Aegon 1993]] and various [[Aubervilliers Rapid Open]]. ||
|| [[https://en.wikipedia.org/wiki/Cumulonimbus_cloud|Cumulonimbus]] and [[https://en.wikipedia.org/wiki/Cumulus_mediocris|Cumulus clouds]] <ref>[[https://en.wikipedia.org/wiki/Anvil|Anvil]] of a large [[https://en.wikipedia.org/wiki/Cumulonimbus_cloud|Cumulonimbus]], [[https://en.wikipedia.org/wiki/Cumulus_congestus_cloud|Cumulus congestus]] at the bottom, [[https://commons.wikimedia.org/wiki/File:Anvil_of_Cumulonimbus_and_Cu_con.JPG|Photo]] by [[https://commons.wikimedia.org/wiki/User:LivingShadow|Simon Eugster]], April 7, 2005, [[https://en.wikipedia.org/wiki/Cumulus_cloud|Cumulus cloud from Wikipedia]]</ref> ||~   ||^   ||
[[toc]]
=Description= 
from [[Don Beal|Don Beal's]] [[WMCCC 1991]] report <ref>[[Don Beal]] (**1991**). //Report on the 11th World Microcomputer Chess Championship//. [[ICGA Journal#14_2|ICCA Journal, Vol. 14, No. 2]]</ref> :
|| {{Written by Jean-Christophe Weill, in association with Marc-François Baudot of [[Échec]], this is a new program, only in development for 7 months, although it made its first appearance at the [[WMCCC 1990|1990 World Micro]]. Its [[Evaluation function|evaluation function]] has some overlap with Échec, although Cumulus add [[Hanging Piece|hung-piece]] considerations, [[King Safety|king safety]] and uses different definition of [[Mobility|mobility]]. Its [[Selectivity|selectivity]] is driven by swap-off values and certain mate threats. [[Check Extensions|Checks]], [[Promotions|promotions threats]], and [[Recapture Extensions|re-captures]] are [[Extensions|extended]].}} ||

=Selected Games=
[[WCCC 1992]], round 4, [[Cumulus|Cumulus 2]] - [[Kallisto]] <ref>[[http://www.game-ai-forum.org/icga-tournaments/round.php?tournament=58&round=4&id=3|Madrid 1992 - Chess - Round 4 - Game 3 (ICGA Tournaments)]]</ref>
[[code]]
[Event "WCCC 1992"]
[Site "Madrid, Spain"]
[Date "1992.11.26"]
[Round "4"]
[White "Cumulus 2"]
[Black "Kallisto"]
[Result "1-0"]

1.d4 Nf6 2.Nf3 e6 3.e3 b6 4.Nbd2 Bb7 5.Bd3 Nc6 6.c3 a5 7.O-O Ba6 8.Bxa6 Rxa6 
9.e4 Be7 10.e5 Nh5 11.Ne4 a4 12.Nfg5 g6 13.Qf3 O-O 14.Be3 Ra5 15.g4 Ng7 16.Qh3 
h5 17.b4 axb3 18.axb3 Qa8 19.Rxa5 Qxa5 20.Nf6+ Bxf6 21.exf6 Ne8 22.gxh5 gxh5 
23.Qg3 Kh8 24.Qf3 Kg8 25.Kh1 Qd5 26.Ne4 Qf5 27.Qxf5 exf5 28.Bh6 fxe4 29.Rg1+ 
Ng7 30.Rxg7+ Kh8 31.h4 d6 32.b4 b5 33.Kh2 Na7 34.Rg5 Re8 35.Bg7+ 1-0
[[code]]

=See also=
* [[Various Classifications#Meteorology|Meteorology]]

=External Links= 
==Chess Engine==
* [[http://www.game-ai-forum.org/icga-tournaments/program.php?id=225|Cumulus' ICGA Tournaments]]
* [[http://query.nytimes.com/gst/fullpage.html?res=9D0CE5DB103BF936A15755C0A967958260|Chess]] by [[http://en.wikipedia.org/wiki/Robert_Byrne|Robert Byrne]], [[http://en.wikipedia.org/wiki/The_New_York_Times|New York Times]], June 25, 1991 - on [[ChessMachine|Chess Machine]] [[Gideon]] versus [[Cumulus]], [[WMCCC 1991]] <ref>[[http://www.game-ai-forum.org/icga-tournaments/round.php?tournament=59&round=2&id=1|Vancouver 1991 - Chess - Round 2 - Game 1 (ICGA Tournaments)]]</ref>
==Misc==
* [[https://en.wiktionary.org/wiki/cumulus|cumulus - Wiktionary]]
* [[https://en.wikipedia.org/wiki/Cumulus_%28disambiguation%29|Cumulus (disambiguation) from Wikipedia]]
* [[https://en.wikipedia.org/wiki/Cumulus_cloud|Cumulus cloud from Wikipedia]]
* [[Videos#TerjeRypdal|Terje Rypdal]], [[Videos#TrilokGurtu|Trilok Gurtu]], [[Videos#MiroslavVitous|Miroslav Vitouš]], Clouds in the Mountain, [[https://en.wikipedia.org/wiki/YouTube|YouTube]] Video 
> [[media type="custom" key="23719606"]]

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