Toga

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Toga, (Toga II) based on Fruit by Fabien Letouzey is a Fruit derivative by Thomas Gaksch, which appeared in early 2005 in test tournaments first without explicit mentioning its Fruit origin. Caused by clone suspicions and announcements, Gaksch apologized to the testers and original author , and continued with the public development Toga II according to the GNU General Public License v2.0.

As official Fruit derivative Toga II was used by Kai Himstedt as primary engine for his GridChess and Cluster Toga entities, competing the WCCC 2007 and WCCC 2008 with Fabien Letouzey and Thomas Gaksch mentioned as co-authors. Toga II 1.4.1SE by Chris Formula based on Toga II 1.4beta5c by Thomas Gaksch featured a parallel search where multiple threads share the hash table - a kind of early Lazy SMP. Toga CMLX is a Chess960 capable version by Teemu Pudas. Further development was done by Michel Van den Bergh, porting Toga II to Linux , subsequent Toga II versions were maintained by Jerry Donald, Toga Returns based on Toga II by Ben Tennison , while further Toga II offsprings were Grapefruit by ThinkingALot, and Cyclone and TogaToy by Norman Schmidt.

With the advent of NNUE, Dietrich Kappe released Toga III 0.4 NNUE with a net based on depth 8 data from Toga II 4.0.2.

=See also=
 * Cluster Toga
 * Cyclone
 * Gambit Fruit
 * Grapefruit
 * GridChess
 * Toga Log

=Publications=
 * Yew Jin Lim (2007). On Forward Pruning in Game-Tree Search. Ph.D. thesis, National University of Singapore, pdf » RankCut

=Forum Posts=

2005 ...
2006 2007
 * still a private version by Karl-Heinz Söntges, CCC, February 08, 2005
 * Toga test tournament 2005 - impressively result - games by Karl-Heinz Söntges, CCC, February 11, 2005
 * Toga Clone by Karl-Heinz Söntges, CCC, March 09, 2005
 * A statement from the "Author" of Toga II by Thomas Gaksch, CCC, March 13, 2005
 * Statement from the "Author" of Toga by Thomas Gaksch, CCC, March 17, 2005
 * Re: What makes Fruit and Fruit-Toga so strong? by Thomas Gaksch, CCC, June 20, 2005
 * Toga II 1.1 for CEBoard ! by Alain Zanchetta, CCC, November 21, 2005 » CEBoard, Pocket PC
 * What is my error in finding difference between fruit and toga? by Uri Blass, CCC, December 30, 2005
 * A new book for Fruit-derived engines - 600+ first games by Marc Lacrosse, Winboard Forum, March 12, 2006
 * Searching for a development team for Toga based on Fruit by Thomas Gaksch, Winboard Forum, September 09, 2006
 * Toga II 1.3x4 mp? by perejaslav, CCC, July 03, 2007
 * Toga: final releases... by Shaun Brewer, CCC, July 23, 2007
 * Toga 	by George Bodkin, CCC, December 06, 2007
 * Re: Toga by Vempele, CCC, December 06, 2007

2008 2009
 * Toga II 3.1.2SE by Shaun Brewer, CCRL Discussion Board, January 08, 2008
 * Toga II 3.1.2SE by Graham Banks, CCC, January 09, 2008
 * Re: Toga II 1.4 beta5c by Denis P. Mendoza, CCC, January 21, 2008
 * How many "official" Toga projects there is now? by Jouni Uski, CCC, January 24, 2008
 * Toga/Glaurung/Strelka Prunings/Reductions by Edsel Apostol, CCC, January 31, 2008 » Glaurung, Strelka, Pruning, Reductions
 * Toga CMLX 1.4 beta 5d released - Rybka in danger? by Vempele, Rybka Forum, February 26, 2008
 * Understanding Fruit and Toga versioning by Onno Garms, Winboard Forum, April 06 2008
 * Toga's node search in mp-mode by Denis P. Mendoza, CCC, April 19, 2008
 * Linux port of newer versions of TogaII by Michel Van den Bergh, CCC, October 01, 2008
 * Toga CMLX 1.4.5e !!NOT BETA!! - Rybka in danger? by Vempele, Rybka Forum, July 05, 2009
 * Toga II 2.0SE by dinosaur123, Rybka Forum, September 24, 2009
 * Can someone explain this? by Michel Van den Bergh, CCC, October 07, 2009 » History Leaf Pruning

2010 ...

 * Software Engineering by Onno Garms, CCC, March 13, 2011 » History Heuristic
 * Toga Knight Outpost by Ben Tennison, CCC, December 10, 2012 » Outposts
 * Toga II 2.0 release by Jerry Donald, CCC, December 19, 2012
 * Toga Returns 1.00 by Ben Tennison, December 23, 2012
 * Toga II 3.0 released by Jerry Donald, CCC, March 22, 2013
 * Toga Returns 1.2 by Ben Tennison, CCC, December 21, 2013

2015 ...

 * Toga II 4.0 release by Jerry Donald, CCC, December 29, 2017
 * Fruit and derivatives list ! by De Noose Daniel, CCC, August 31, 2019

2020 ...

 * Toga III 0.4 NNUE by Dietrich Kappe, CCC, September 07, 2020 » NNUE
 * Introducing Toga III chess engine by Dietrich Kappe, CCC, January 10, 2021
 * Introducing Dark Toga by Dietrich Kappe, CCC, June 19, 2021

=External Links=

Chess Engine

 * Index of /chess/engines/Jim Ablett/TOGA 2 by Jim Ablett, hosted by Kirill Kryukov
 * Toga II (Wayback Machine, January 08, 2007)
 * Toga chess engine hosted by Denis Mendoza (Wayback Machine, September 21, 2012)
 * Posix ports of some recent version of Toga II by Michel Van den Bergh (Wayback Machine, October 12, 2013)
 * Toga II from chesslogik.com
 * GitHub - zwegner/toga-mp: A fork of Toga II 1.2.1a, implementing multithreaded search by Zach Wegner
 * GitHub - dkappe/TogaIII at nnue by Dietrich Kappe
 * Fruit (software) - Derivatives from Wikipedia
 * Fruit Family from CCRL Blitz
 * Fruit Family from CCRL 40/2 FRC

Misc

 * Toga (disambiguation) from Wikipedia
 * Toga from Wikipedia
 * Toga party from Wikipedia

=References= Up one level