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'''[[Main Page|Home]] * [[Engines]] * Gambit Fruit'''
[[FILE:Fruchtschale Kamares-Stil 06.jpg|border|right|thumb|[https://en.wikipedia.org/wiki/Minoan_civilization Minoan] Ceramic for the Sacrifice of Fruit <ref>[https://en.wikipedia.org/wiki/Minoan_civilization Minoan] Ceramic from [https://en.wikipedia.org/wiki/Phaistos Phaistos], [https://en.wikipedia.org/wiki/Heraklion_Archaeological_Museum Heraklion Archaeological Museum]</ref> <ref>Fruchtbarkeitsschale für die Opferung von Früchten aus Phaistos zu sehen im Archäologischen Museum in Herakleion, [http://de.wikipedia.org/wiki/Minoische_Religion Minoische Religion from Wikipedia.de] (German)</ref> ]]
'''Gambit Fruit''',<br/>
a [[Free Software Foundation#GPL|GPL]] licensed, [[Fruit]] and [[Toga]] derivative [[Open Source Engines|open source engine]] written by [[Ryan Benitez]] in [[Cpp|C++]]. It has some interesting changes primarily based on the last open-source-version Fruit '''2.1''' <ref>[http://www.superchessengine.com/gambit_fruit.htm Gambit fruit]</ref>, the goal being a fun free and aggressive chess engine <ref>[https://www.stmintz.com/ccc/index.php?id=461801 Re: Gambit Fruit ?] by [[Ryan Benitez|Ryan B.]], [[CCC]], November 15, 2005</ref>. Short after its release in end of 2005, Ryan joined forces with [[Fabien Letouzey]] and [[Joachim Rang]] for a commercial Fruit, and incorporated Gambit Fruit features into Fruit 2.2 and subsequent versions.
=Added Features=
and changes in Gambit Fruit <ref>[http://www.superchessengine.com/gambit_fruit.htm Gambit fruit], gfruit4b.zip - readme.txt</ref>:
* Alternate [[Piece-Square Tables|piece-square tables]]
* [[Pawn#RookPawn|Rook pawn]] score adjustment
* [[Rook]] [[Bishop]] bonus
* [[Queen]] [[Knight]] bonus
* Two Rook penalty
* Two Knight penalty
* Minor tuning of [[Point Value|piece values]]
* [[King Safety#KingTropism|King tropism]]
* [[Side to move|Side to move]] [[Tempo|bonus]]
* Rook on [[Weak Pawns|bad pawn]] file bonus
* [[Bad Bishop|Pawns on Bishop colour]] penalty (fewer pawns is better for bishops and with one bishop you should not block it with your own pawns)
* Improved [[Pawn Structure|pawn structure]]
* New [[Lazy Evaluation|Lazy Eval]]
* [[Rebel]] [[Reductions|reductions]] with re-searches <ref>[https://www.stmintz.com/ccc/index.php?id=461958 Has anyone tested Gambit Fruit with Rebel Reductions on?] by [[Ryan Benitez|Ryan B.]], [[CCC]], November 15, 2005</ref> <ref>[http://www.top-5000.nl/authors/rebel/chess840.htm#REDUCTIONS Programmer Corner - How Rebel Plays Chess - Reductions] by [[Ed Schroder|Ed Schröder]], [http://members.home.nl/matador/Inside%20Rebel.pdf pdf reprint]</ref>
* [[Endgame Bitbases|Bitbases]] (using [[Scorpio Bitbases|Scorpio bitbase]] files)
* [[Contempt Factor|Contempt factor]]
=Acknowledgment=
Thank you to [[Fabien Letouzey|Fabian]] for [[Fruit|Fruit 2.1]], [[Thomas Gaksch|Thomas]] for [[Toga]], and to [[Bryan Hofmann]] for the [[Windows]] compile <ref>[http://www.superchessengine.com/gambit_fruit.htm Gambit fruit], gfruit4b.zip - readme.txt</ref>.
=See also=
* [[Various Classifications#Food|Food]]
* [[Fruit]]
* [[Gambiet]]
* [[Gambit]]
* [[GambitVB]]
* [[Chess Tiger|Gambit Tiger]]
* [[Kasparov's Gambit]]
* [[Toga]]
=Forum Posts=
* [https://www.stmintz.com/ccc/index.php?id=461801 Re: Gambit Fruit ?] by [[Ryan Benitez|Ryan B.]], [[CCC]], November 15, 2005
* [https://www.stmintz.com/ccc/index.php?id=461958 Has anyone tested Gambit Fruit with Rebel Reductions on?] by [[Ryan Benitez|Ryan B.]], [[CCC]], November 15, 2005 » [[Reductions]], [[Rebel]]
* [https://www.stmintz.com/ccc/index.php?id=462901 Gambit Fruit Beta 3 available] by [[Ryan Benitez|Ryan B.]], [[CCC]], November 19, 2005
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=2&t=3915 Gambit Fruit 1.0 Beta 4b is out now] by [[Ryan Benitez]], [[Computer Chess Forums|Winboard Forum]], December 02, 2005
* [https://www.stmintz.com/ccc/index.php?id=479189 congratulations to gambit-fruit!] by [[Thorsten Czub]], [[CCC]], January 13, 2006
* [http://www.computerchess.info/tdbb/phpBB3/viewtopic.php?f=9&t=225&start=0&st=0&sk=t&sd=a Chess engine oldies upgrades] by [[Denis Mendoza|Denis P. Mendoza]], [[Computer Chess Forums|Toga Developers Discussion Board]], December 30, 2008
* [http://www.talkchess.com/forum/viewtopic.php?t=26282 posix source for GambitFruit4bxSE ?] by Martin Helmer, [[CCC]], January 28, 2009
=External Links=
* [http://www.fruitchess.com/about.htm Fruit - pure playing strength - Team / History]
* [https://en.wikipedia.org/wiki/Fruit_%28software%29#Derivatives Fruit (software) - Derivatives from Wikipedia]
=References=
<references />
'''[[Engines|Up one Level]]'''
[[FILE:Fruchtschale Kamares-Stil 06.jpg|border|right|thumb|[https://en.wikipedia.org/wiki/Minoan_civilization Minoan] Ceramic for the Sacrifice of Fruit <ref>[https://en.wikipedia.org/wiki/Minoan_civilization Minoan] Ceramic from [https://en.wikipedia.org/wiki/Phaistos Phaistos], [https://en.wikipedia.org/wiki/Heraklion_Archaeological_Museum Heraklion Archaeological Museum]</ref> <ref>Fruchtbarkeitsschale für die Opferung von Früchten aus Phaistos zu sehen im Archäologischen Museum in Herakleion, [http://de.wikipedia.org/wiki/Minoische_Religion Minoische Religion from Wikipedia.de] (German)</ref> ]]
'''Gambit Fruit''',<br/>
a [[Free Software Foundation#GPL|GPL]] licensed, [[Fruit]] and [[Toga]] derivative [[Open Source Engines|open source engine]] written by [[Ryan Benitez]] in [[Cpp|C++]]. It has some interesting changes primarily based on the last open-source-version Fruit '''2.1''' <ref>[http://www.superchessengine.com/gambit_fruit.htm Gambit fruit]</ref>, the goal being a fun free and aggressive chess engine <ref>[https://www.stmintz.com/ccc/index.php?id=461801 Re: Gambit Fruit ?] by [[Ryan Benitez|Ryan B.]], [[CCC]], November 15, 2005</ref>. Short after its release in end of 2005, Ryan joined forces with [[Fabien Letouzey]] and [[Joachim Rang]] for a commercial Fruit, and incorporated Gambit Fruit features into Fruit 2.2 and subsequent versions.
=Added Features=
and changes in Gambit Fruit <ref>[http://www.superchessengine.com/gambit_fruit.htm Gambit fruit], gfruit4b.zip - readme.txt</ref>:
* Alternate [[Piece-Square Tables|piece-square tables]]
* [[Pawn#RookPawn|Rook pawn]] score adjustment
* [[Rook]] [[Bishop]] bonus
* [[Queen]] [[Knight]] bonus
* Two Rook penalty
* Two Knight penalty
* Minor tuning of [[Point Value|piece values]]
* [[King Safety#KingTropism|King tropism]]
* [[Side to move|Side to move]] [[Tempo|bonus]]
* Rook on [[Weak Pawns|bad pawn]] file bonus
* [[Bad Bishop|Pawns on Bishop colour]] penalty (fewer pawns is better for bishops and with one bishop you should not block it with your own pawns)
* Improved [[Pawn Structure|pawn structure]]
* New [[Lazy Evaluation|Lazy Eval]]
* [[Rebel]] [[Reductions|reductions]] with re-searches <ref>[https://www.stmintz.com/ccc/index.php?id=461958 Has anyone tested Gambit Fruit with Rebel Reductions on?] by [[Ryan Benitez|Ryan B.]], [[CCC]], November 15, 2005</ref> <ref>[http://www.top-5000.nl/authors/rebel/chess840.htm#REDUCTIONS Programmer Corner - How Rebel Plays Chess - Reductions] by [[Ed Schroder|Ed Schröder]], [http://members.home.nl/matador/Inside%20Rebel.pdf pdf reprint]</ref>
* [[Endgame Bitbases|Bitbases]] (using [[Scorpio Bitbases|Scorpio bitbase]] files)
* [[Contempt Factor|Contempt factor]]
=Acknowledgment=
Thank you to [[Fabien Letouzey|Fabian]] for [[Fruit|Fruit 2.1]], [[Thomas Gaksch|Thomas]] for [[Toga]], and to [[Bryan Hofmann]] for the [[Windows]] compile <ref>[http://www.superchessengine.com/gambit_fruit.htm Gambit fruit], gfruit4b.zip - readme.txt</ref>.
=See also=
* [[Various Classifications#Food|Food]]
* [[Fruit]]
* [[Gambiet]]
* [[Gambit]]
* [[GambitVB]]
* [[Chess Tiger|Gambit Tiger]]
* [[Kasparov's Gambit]]
* [[Toga]]
=Forum Posts=
* [https://www.stmintz.com/ccc/index.php?id=461801 Re: Gambit Fruit ?] by [[Ryan Benitez|Ryan B.]], [[CCC]], November 15, 2005
* [https://www.stmintz.com/ccc/index.php?id=461958 Has anyone tested Gambit Fruit with Rebel Reductions on?] by [[Ryan Benitez|Ryan B.]], [[CCC]], November 15, 2005 » [[Reductions]], [[Rebel]]
* [https://www.stmintz.com/ccc/index.php?id=462901 Gambit Fruit Beta 3 available] by [[Ryan Benitez|Ryan B.]], [[CCC]], November 19, 2005
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=2&t=3915 Gambit Fruit 1.0 Beta 4b is out now] by [[Ryan Benitez]], [[Computer Chess Forums|Winboard Forum]], December 02, 2005
* [https://www.stmintz.com/ccc/index.php?id=479189 congratulations to gambit-fruit!] by [[Thorsten Czub]], [[CCC]], January 13, 2006
* [http://www.computerchess.info/tdbb/phpBB3/viewtopic.php?f=9&t=225&start=0&st=0&sk=t&sd=a Chess engine oldies upgrades] by [[Denis Mendoza|Denis P. Mendoza]], [[Computer Chess Forums|Toga Developers Discussion Board]], December 30, 2008
* [http://www.talkchess.com/forum/viewtopic.php?t=26282 posix source for GambitFruit4bxSE ?] by Martin Helmer, [[CCC]], January 28, 2009
=External Links=
* [http://www.fruitchess.com/about.htm Fruit - pure playing strength - Team / History]
* [https://en.wikipedia.org/wiki/Fruit_%28software%29#Derivatives Fruit (software) - Derivatives from Wikipedia]
=References=
<references />
'''[[Engines|Up one Level]]'''
