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'''[[Main Page|Home]] * [[Engines]] * Stockfish'''
[[FILE:stockfish-logo.png|border|right|thumb|| Stockfish logo <ref>The Stockfish icon was designed by [http://iamkle.in/ Klein Maetschke], [https://stockfishchess.org/about/ About - Stockfish]</ref> ]] [[FILE:stockfish12-logo.png|border|right|thumb|link=https://stockfishchess.org/| Stockfish 12 logo <ref>[https://stockfishchess.org/ Stockfish - Open Source Chess Engine], The Stockfish 12 icon was designed by [http://iamkle.in/ Klein Maetschke], [https://stockfishchess.org/about/ About - Stockfish]</ref> ]]
'''Stockfish''',<br/>
* [[Bitboards]] with [[Square Mapping Considerations#LittleEndianRankFileMapping|Little-Endian Rank-File Mapping (LERF)]]
* [[Magic Bitboards]]
: [[BMI2#PEXTBitboards|BMI2 - PEXT Bitboards]] (not recommend for [[AMD]] [https://en.wikipedia.org/wiki/Ryzen Ryzen] <ref>[https://www.reddit.com/r/Amd/comments/60i6er/ryzen_and_bmi2_strange_behavior_and_high_latencies/ Ryzen and BMI2: Strange behavior and high latencies] by DonnieTinyHands, [https://en.wikipedia.org/wiki/Reddit Reddit], March 20, 2017</ref>prior to [https://en.wikipedia.org/wiki/Zen_3 Zen 3])
* [[Piece-Lists]] <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=7&t=69364&start=12 Re: piece lists advantage with bit-boards?] by [[Ronald de Man]], [[CCC]], December 26, 2018</ref>
==[[Search]]==
=Release Dates=
==2008==* Stockfish 1.0 : - November 02, 2008* Stockfish 1.01 : - November 03, 2008* Stockfish 1.1 : - December 06, 2008* Stockfish 1.1a : - December 08, 2008* Stockfish 1.2 : - December 29, 2008==2009==* Stockfish 1.3 : - May 02, 2009* Stockfish 1.3.1 : - May 03, 2009* Stockfish 1.4 : - July 05, 2009* Stockfish 1.5 : - October 04, 2009* Stockfish 1.5.1 : - October 11, 2009* Stockfish 1.6 : - December 25, 2009* Stockfish 1.6.1 : - December 25, 2009* Stockfish 1.6.2 : - December 31, 2009==2010 ...==* Stockfish 1.6.3 : - February 02, 2010* Stockfish 1.7 : - April 08, 2010* Stockfish 1.7.1 : - April 10, 2010* Stockfish 1.8 : - July 02, 2010* Stockfish 1.9 : - October 02, 2010* Stockfish 1.9.1 : - October 05, 2010'''2011'''* Stockfish 2.0 : - January 01, 2011* Stockfish 2.0.1 : - January 04, 2011* Stockfish 2.1 : - May 04, 2011* Stockfish 2.1.1 : - May 08, 2011* Stockfish 2.2 : - December 29, 2011'''2012'''* Stockfish 2.2.1 : - January 06, 2012* Stockfish 2.2.2 : - January 14, 2012* Stockfish 2.3 : - September 15, 2012* Stockfish 2.3.1 : - September 22, 2012'''2013'''* Stockfish 3 : - April 30, 2013* Stockfish 4 : - August 20, 2013* Stockfish DD : - November 29, 2013* Stockfish 5 : - May 31, 2014==2015 ...==* Stockfish 6 : - January 27, 2015* Stockfish 7 : - January 02, 2016* Stockfish 8 : - November 01, 2016* Stockfish 9 : - February 01, 2018* Stockfish 10 : - November 29, 2018==2020 ...==* Stockfish 11 : - January 18, 2020* [[Stockfish NNUE|Stockfish 12]] : - September 02, 2020
<span id="ports"></span>
=Ports=
* [[Crystal]]
* [[DON]]
* [[Eman]]
* [[Houdini]]
* [[McBrain]]
* [[Sting]]
* [[SugaR]]
* [http://www.talkchess.com/forum/viewtopic.php?t=66793 Elo measurement of contempt in SF in self-play] by [[Michel Van den Bergh]], [[CCC]], March 10, 2018 » [[Contempt Factor|Contempt]], [[Playing Strength]]
* [http://www.talkchess.com/forum/viewtopic.php?t=66935 Stockfish 180113 - Initial position until depth 65] by [[Andreas Strangmüller]], [[CCC]], March 27, 2018 » [[Initial Position]]
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=67932 Stockfish and serious hardware: 384 threads] by [[Jouni Uski]], [[CCC]], July 08, 2018 » [[Thread]]
* [https://groups.google.com/d/msg/fishcooking/kJ6vNKyp6h8/zwRnc-i7CwAJ Stockfish 10 - Call for Binaries] by [[Daylen Yang]], [[Computer Chess Forums|FishCooking]], November 29, 2018
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=69364&start=12 Re: piece lists advantage with bit-boards?] by [[Ronald de Man]], [[CCC]], December 26, 2018 » [[Piece-Lists]], [[asmFish]]
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=73273 Stockfish and latest +6 ELO patch!] by [[Jouni Uski]], [[CCC]], March 05, 2020 » [[Distance]], [[Space-Time Tradeoff]] <ref>[https://github.com/official-stockfish/Stockfish/commit/5a7b45eac9dedbf7ebc61d9deb4dd934058d1ca1#diff-4cd6bcdb505b124d7bdc612c4789dc26L57-R59 Use equations for PushAway and PushClose · official-stockfish/Stockfish@5a7b45e · GitHub]</ref>
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=73753 Null move] by [[Robert Pope]], [[CCC]], April 24, 2020 » [[Null Move Pruning]]
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=74037 Stockfish_dev is probably stronger than Sargon 1978 v1.00] by [[Kai Laskos]], [[CCC]], May 29, 2020 » [[Sargon]]
* [http://talkchess.com/forum3/viewtopic.php?f=2&t=74059 Stockfish NN release (NNUE)] by [[Henk Drost]], [[CCC]], May 31, 2020 » [[NNUE]], [[Stockfish NNUE]]
* [https://groups.google.com/d/msg/fishcooking/EBKQSrb9I08/5xasTnnSCAAJ stockfishNNUE vs others (TCEC 18 bonus)] by [[Warren D. Smith]], [[Computer Chess Forums|FishCooking]], July 14, 2020
* [https://groups.google.com/d/msg/fishcooking/yjh1YOxy7nw/rJA6u1ODAAAJ SF NNUE/Classical] by [[Fauzi Akram Dabat|Fauzi]], [[Computer Chess Forums|FishCooking]], October 05, 2020 » [[Stockfish NNUE]]
* <span id="i486Re"></span>[http://www.talkchess.com/forum3/viewtopic.php?f=2&t=63857&start=14 Re: Stockfish bench in i486 & Pentium 75mhz !] by [[Vincent Lejeune]], [[CCC]], October 11, 2020 » [[#i486|Stockfish bench ...]]
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=75841&start=8 Re: Raspberry Pi 4 compiled chess engines] by [[Rasmus Althoff]], [[CCC]], November 16, 2020 » [[Raspberry Pi]]
=External Links=
