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Created page with "'''Home * Engines * Cumulus''' FILE:Anvil of Cumulonimbus and Cu con.JPG|border|right|thumb|[https://en.wikipedia.org/wiki/Cumulonimbus_cloud Cumulonimbus..."
'''[[Main Page|Home]] * [[Engines]] * Cumulus'''
[[FILE:Anvil of Cumulonimbus and Cu con.JPG|border|right|thumb|[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> ]]
'''Cumulus''',<br/>
the second chess program by [[Jean-Christophe Weill]] and [[Marc-François Baudot]]. Cumulus played the [[WMCCC 1990]], [[WMCCC 1991]], and [[WCCC 1992]] <ref> [https://www.game-ai-forum.org/icga-tournaments/program.php?id=225 Cumulus' ICGA Tournaments]</ref>, the [[Aegon 1993]] and various [[Aubervilliers Rapid Open]].
=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>[https://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>
<pre>
[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
</pre>
=See also=
* [[Échec]]
* [[Various Classifications#Meteorology|Meteorology]]
=External Links=
==Chess Engine==
* [https://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 [https://en.wikipedia.org/wiki/Robert_Byrne Robert Byrne], [https://en.wikipedia.org/wiki/The_New_York_Times New York Times], June 25, 1991 - on [[ChessMachine|Chess Machine]] [[Gideon]] versus [[Cumulus]], [[WMCCC 1991]] <ref>[https://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>
* [http://recherche.enac.fr/~weill/chess.html A Short Story of JCW's Computer Chess Program] by [[Jean-Christophe Weill]]
==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
: {{#evu:https://www.youtube.com/watch?v=42Jq2uavA9E|alignment=left|valignment=top}}
=References=
<references />
'''[[Engines|Up one Level]]'''
[[FILE:Anvil of Cumulonimbus and Cu con.JPG|border|right|thumb|[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> ]]
'''Cumulus''',<br/>
the second chess program by [[Jean-Christophe Weill]] and [[Marc-François Baudot]]. Cumulus played the [[WMCCC 1990]], [[WMCCC 1991]], and [[WCCC 1992]] <ref> [https://www.game-ai-forum.org/icga-tournaments/program.php?id=225 Cumulus' ICGA Tournaments]</ref>, the [[Aegon 1993]] and various [[Aubervilliers Rapid Open]].
=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>[https://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>
<pre>
[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
</pre>
=See also=
* [[Échec]]
* [[Various Classifications#Meteorology|Meteorology]]
=External Links=
==Chess Engine==
* [https://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 [https://en.wikipedia.org/wiki/Robert_Byrne Robert Byrne], [https://en.wikipedia.org/wiki/The_New_York_Times New York Times], June 25, 1991 - on [[ChessMachine|Chess Machine]] [[Gideon]] versus [[Cumulus]], [[WMCCC 1991]] <ref>[https://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>
* [http://recherche.enac.fr/~weill/chess.html A Short Story of JCW's Computer Chess Program] by [[Jean-Christophe Weill]]
==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
: {{#evu:https://www.youtube.com/watch?v=42Jq2uavA9E|alignment=left|valignment=top}}
=References=
<references />
'''[[Engines|Up one Level]]'''
