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Created page with "'''Home * Engines * The Fox''' [[FILE:Räv vid Revhusen i Ystad - Juli 2012..jpg|border|right|thumb|[https://en.wikipedia.org/wiki/Red_fox Red Fox] in [http..."
'''[[Main Page|Home]] * [[Engines]] * The Fox'''
[[FILE:Räv vid Revhusen i Ystad - Juli 2012..jpg|border|right|thumb|[https://en.wikipedia.org/wiki/Red_fox Red Fox] in [https://en.wikipedia.org/wiki/Ystad Ystad], [https://en.wikipedia.org/wiki/Sweden Sweden] <ref>[https://en.wikipedia.org/wiki/Red_fox Red Fox] in [https://en.wikipedia.org/wiki/Ystad Ystad], [https://en.wikipedia.org/wiki/Sweden Sweden], 2012, Photo by [http://commons.wikimedia.org/wiki/User:Jonnmann Jonn Leffmann], [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons], [https://en.wikipedia.org/wiki/Fox Fox from Wikipedia]</ref> ]]
'''The Fox''',<br/>
an early chess program written in [[APL]] by [[Charlie Wilkes]] from [https://en.wikipedia.org/wiki/The_College_of_William_%26_Mary The College of William & Mary] and his father and IBM-employee [[Charles F. Wilkes]], who were inspired by the [https://en.wikipedia.org/wiki/George_R._R._Martin George R. R. Martin] essay ''[[CCCP (US)#TheComputerWasAFish|The Computer Was A Fish]]'' in [https://en.wikipedia.org/wiki/Analog_Science_Fiction_and_Fact Analog Science Fiction and Fact], August 1972 <ref>[https://en.wikipedia.org/wiki/George_R._R._Martin George R. R. Martin] ('''1972'''). ''[[CCCP (US)#TheComputerWasAFish|The Computer Was A Fish]]''. [http://www.isfdb.org/cgi-bin/pl.cgi?57064 Analog Science Fiction/Science Fact, August 1972]</ref> concerning the early [[ACM 1971|ACM Tournaments]]. They soon started to write an own chess program, without knowledge of how others had to that point programmed. They invented their own equivalent to [[Alpha-Beta|alpha-beta]] pruning. The Fox was a [[Claude Shannon|Shannon Type B]] program, were one may alter [[Depth|depth]] and width. In tournament mode, it made all possible [[Moves|moves]] for the first two [[Ply|plies]], it then [[Evaluation|evaluated]] and [[Pruning|pruned]] to the best three apparent moves for three more plies, for a total depth of five plies. The Fox went wider at the second ply level in case of loss of [[Material|material]] <ref>[http://www.computerhistory.org/chess/full_record.php?iid=doc-431614f6d6b8e Computer Chess Newsletter, Issue 2] 1977 by [[Douglas Penrod]], [[Charles F. Wilkes]] pp. 6-9, Courtesy of [[Peter Jennings]], [http://archive.computerhistory.org/projects/chess/related_materials/text/4-0.Issue_2_Computer_Chess_Newsletter/Issue_2_Computer_Chess_Newsletter.1977.062303031.sm.pdf pdf reprint] from [[The Computer History Museum]]</ref>.
=Tournament Play=
The Fox played the 4th [[ACM 1973]] on an [[IBM 370|IBM 370/145]] with a win against [[Tech#Tech2|Tech 2]] in the first round, but suffered from too many users on their [https://en.wikipedia.org/wiki/Time-sharing timesharing system] on Monday, where they lost both games due to time forfeit.
=Selected Games=
<span id="TheFoxTech2"></span>[[ACM 1973]], round 1, [[The Fox]] - [[Tech#Tech2|Tech 2]]
<pre>
[Event "ACM 1973"]
[Site "Atlanta USA"]
[Date "1973.08.26"]
[Round "1"]
[White "The Fox"]
[Black "Tech 2"]
[Result "1-0"]
1.e4 e5 2.f4 exf4 3.Bc4 Nf6 4.Nc3 Nc6 5.Nf3 Nxe4 6.O-O Bc5+ 7.d4 Nxc3 8.bxc3 Bd6
9.Qe2+ Qe7 10.Bd2 O-O 11.Qxe7 Nxe7 12.Rfe1 Nc6 13.Bd3 f6 14.Rab1 Rd8 15.Rb5 g5
16.Rf5 Be7 17.Rb5 d5 18.Rbb1 Bd6 19.h3 Kg7 20.Re2 Rb8 21.Kf2 g4 22.Ng1 Bd7 23.hxg4
Bxg4 24.Nf3 Rd7 25.Rh1 f5 26.Re6 1-0 {time}
</pre>
=See also=
* [[Various Classifications#Comics|Comics]]
* [[Various Classifications#Mammal|Mammal]]
=External Links=
==The Fox==
* [https://en.wikipedia.org/wiki/The_Fox The Fox (disambiguation) from Wikipedia]
* [https://en.wikipedia.org/wiki/T.H.E._Fox T.H.E. Fox from Wikipedia]
* [https://en.wikipedia.org/wiki/The_Fox_%28brand%29 The Fox (brand) from Wikipedia]
* [https://en.wikipedia.org/wiki/The_Fox_%28novella%29 The Fox (novella) from Wikipedia]
* [https://en.wikipedia.org/wiki/The_Fox_%281921_film%29 The Fox (1921 film) from Wikipedia]
==Misc==
* [https://en.wikipedia.org/wiki/Fox_%28disambiguation%29 Fox (disambiguation) from Wikipedia]
* [https://en.wikipedia.org/wiki/Fox Fox from Wikipedia]
* [https://en.wikipedia.org/wiki/Red_fox Red fox from Wikipedia]
* [https://en.wikipedia.org/wiki/Foxes_in_popular_culture Foxes in popular culture]
* [https://en.wikipedia.org/wiki/Reynard Reynard from Wikipedia]
* [https://en.wikipedia.org/wiki/Fox_%28comics%29 Fox (comics) from Wikipedia]
* [https://en.wikipedia.org/wiki/Fox_Feature_Syndicate Fox Feature Syndicate from Wikipedia]
* [https://en.wikipedia.org/wiki/The_Fox_and_the_Crow The Fox and the Crow from Wikipedia]
* [https://en.wikipedia.org/wiki/Fix_and_Foxi Fix and Foxi from Wikipedia]
* [https://en.wikipedia.org/wiki/21st_Century_Fox 21st Century Fox from Wikipedia]
* [[Videos#TheSweet|The Sweet]] - [https://en.wikipedia.org/wiki/Fox_on_the_Run_(Sweet_song) Fox On The Run], Promo Clip 1975, [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: {{#evu:https://www.youtube.com/watch?v=qBdFA6sI6-8|alignment=left|valignment=top}}
=References=
<references />
'''[[Engines|Up one level]]'''
[[FILE:Räv vid Revhusen i Ystad - Juli 2012..jpg|border|right|thumb|[https://en.wikipedia.org/wiki/Red_fox Red Fox] in [https://en.wikipedia.org/wiki/Ystad Ystad], [https://en.wikipedia.org/wiki/Sweden Sweden] <ref>[https://en.wikipedia.org/wiki/Red_fox Red Fox] in [https://en.wikipedia.org/wiki/Ystad Ystad], [https://en.wikipedia.org/wiki/Sweden Sweden], 2012, Photo by [http://commons.wikimedia.org/wiki/User:Jonnmann Jonn Leffmann], [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons], [https://en.wikipedia.org/wiki/Fox Fox from Wikipedia]</ref> ]]
'''The Fox''',<br/>
an early chess program written in [[APL]] by [[Charlie Wilkes]] from [https://en.wikipedia.org/wiki/The_College_of_William_%26_Mary The College of William & Mary] and his father and IBM-employee [[Charles F. Wilkes]], who were inspired by the [https://en.wikipedia.org/wiki/George_R._R._Martin George R. R. Martin] essay ''[[CCCP (US)#TheComputerWasAFish|The Computer Was A Fish]]'' in [https://en.wikipedia.org/wiki/Analog_Science_Fiction_and_Fact Analog Science Fiction and Fact], August 1972 <ref>[https://en.wikipedia.org/wiki/George_R._R._Martin George R. R. Martin] ('''1972'''). ''[[CCCP (US)#TheComputerWasAFish|The Computer Was A Fish]]''. [http://www.isfdb.org/cgi-bin/pl.cgi?57064 Analog Science Fiction/Science Fact, August 1972]</ref> concerning the early [[ACM 1971|ACM Tournaments]]. They soon started to write an own chess program, without knowledge of how others had to that point programmed. They invented their own equivalent to [[Alpha-Beta|alpha-beta]] pruning. The Fox was a [[Claude Shannon|Shannon Type B]] program, were one may alter [[Depth|depth]] and width. In tournament mode, it made all possible [[Moves|moves]] for the first two [[Ply|plies]], it then [[Evaluation|evaluated]] and [[Pruning|pruned]] to the best three apparent moves for three more plies, for a total depth of five plies. The Fox went wider at the second ply level in case of loss of [[Material|material]] <ref>[http://www.computerhistory.org/chess/full_record.php?iid=doc-431614f6d6b8e Computer Chess Newsletter, Issue 2] 1977 by [[Douglas Penrod]], [[Charles F. Wilkes]] pp. 6-9, Courtesy of [[Peter Jennings]], [http://archive.computerhistory.org/projects/chess/related_materials/text/4-0.Issue_2_Computer_Chess_Newsletter/Issue_2_Computer_Chess_Newsletter.1977.062303031.sm.pdf pdf reprint] from [[The Computer History Museum]]</ref>.
=Tournament Play=
The Fox played the 4th [[ACM 1973]] on an [[IBM 370|IBM 370/145]] with a win against [[Tech#Tech2|Tech 2]] in the first round, but suffered from too many users on their [https://en.wikipedia.org/wiki/Time-sharing timesharing system] on Monday, where they lost both games due to time forfeit.
=Selected Games=
<span id="TheFoxTech2"></span>[[ACM 1973]], round 1, [[The Fox]] - [[Tech#Tech2|Tech 2]]
<pre>
[Event "ACM 1973"]
[Site "Atlanta USA"]
[Date "1973.08.26"]
[Round "1"]
[White "The Fox"]
[Black "Tech 2"]
[Result "1-0"]
1.e4 e5 2.f4 exf4 3.Bc4 Nf6 4.Nc3 Nc6 5.Nf3 Nxe4 6.O-O Bc5+ 7.d4 Nxc3 8.bxc3 Bd6
9.Qe2+ Qe7 10.Bd2 O-O 11.Qxe7 Nxe7 12.Rfe1 Nc6 13.Bd3 f6 14.Rab1 Rd8 15.Rb5 g5
16.Rf5 Be7 17.Rb5 d5 18.Rbb1 Bd6 19.h3 Kg7 20.Re2 Rb8 21.Kf2 g4 22.Ng1 Bd7 23.hxg4
Bxg4 24.Nf3 Rd7 25.Rh1 f5 26.Re6 1-0 {time}
</pre>
=See also=
* [[Various Classifications#Comics|Comics]]
* [[Various Classifications#Mammal|Mammal]]
=External Links=
==The Fox==
* [https://en.wikipedia.org/wiki/The_Fox The Fox (disambiguation) from Wikipedia]
* [https://en.wikipedia.org/wiki/T.H.E._Fox T.H.E. Fox from Wikipedia]
* [https://en.wikipedia.org/wiki/The_Fox_%28brand%29 The Fox (brand) from Wikipedia]
* [https://en.wikipedia.org/wiki/The_Fox_%28novella%29 The Fox (novella) from Wikipedia]
* [https://en.wikipedia.org/wiki/The_Fox_%281921_film%29 The Fox (1921 film) from Wikipedia]
==Misc==
* [https://en.wikipedia.org/wiki/Fox_%28disambiguation%29 Fox (disambiguation) from Wikipedia]
* [https://en.wikipedia.org/wiki/Fox Fox from Wikipedia]
* [https://en.wikipedia.org/wiki/Red_fox Red fox from Wikipedia]
* [https://en.wikipedia.org/wiki/Foxes_in_popular_culture Foxes in popular culture]
* [https://en.wikipedia.org/wiki/Reynard Reynard from Wikipedia]
* [https://en.wikipedia.org/wiki/Fox_%28comics%29 Fox (comics) from Wikipedia]
* [https://en.wikipedia.org/wiki/Fox_Feature_Syndicate Fox Feature Syndicate from Wikipedia]
* [https://en.wikipedia.org/wiki/The_Fox_and_the_Crow The Fox and the Crow from Wikipedia]
* [https://en.wikipedia.org/wiki/Fix_and_Foxi Fix and Foxi from Wikipedia]
* [https://en.wikipedia.org/wiki/21st_Century_Fox 21st Century Fox from Wikipedia]
* [[Videos#TheSweet|The Sweet]] - [https://en.wikipedia.org/wiki/Fox_on_the_Run_(Sweet_song) Fox On The Run], Promo Clip 1975, [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: {{#evu:https://www.youtube.com/watch?v=qBdFA6sI6-8|alignment=left|valignment=top}}
=References=
<references />
'''[[Engines|Up one level]]'''
