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Created page with "'''Home * Engines * Stockfish''' FILE:stockfish-logo.png|border|right|thumb|link=https://stockfishchess.org/| | Stockfish logo <ref>[https://stockfishche..."
'''[[Main Page|Home]] * [[Engines]] * Stockfish'''
[[FILE:stockfish-logo.png|border|right|thumb|link=https://stockfishchess.org/|
| Stockfish logo <ref>[https://stockfishchess.org/ Stockfish - Open Source Chess Engine]</ref> ]]
'''Stockfish''',<br/>
an [[UCI]] compatible [[:Categoty:Open Source|open source]] chess engine developed by [[Tord Romstad]], [[Marco Costalba]], [[Joona Kiiski]] and [[Gary Linscott]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=58779 Stockfish 7] by [[Joona Kiiski]], [[CCC]], January 02, 2016</ref>, licensed under the [[Free Software Foundation#GPL|GPL v3.0]]. Marco forked the project from version 2.1 of Tord's engine [[Glaurung]], first announced by Marco in November 8, 2008 <ref>[http://www.talkchess.com/forum/viewtopic.php?t=24675 Stockfish 1.0] by [[Marco Costalba]], [[CCC]], November 02, 2008</ref> , and in early 2009 Joona's [[Smaug]], a further Glaurung 2.2 derivative, was incorporated <ref>[http://www.talkchess.com/forum/viewtopic.php?t=26971&start=1 Re: Smaug: a new chess engine based on glaurung] by [[Marco Costalba]], [[CCC]], March 12, 2009</ref> . Starting out among the top twenty engines, Stockfish has quickly climbed in [[Playing Strength|strength]] to become the world strongest chess entity as of 2018 - at least concerning the [[AlphaZero]] hype <ref>[[David Silver]], [[Thomas Hubert]], [[Julian Schrittwieser]], [[Ioannis Antonoglou]], [[Matthew Lai]], [[Arthur Guez]], [[Marc Lanctot]], [[Laurent Sifre]], [[Dharshan Kumaran]], [[Thore Graepel]], [[Timothy Lillicrap]], [[Karen Simonyan]], [[Demis Hassabis]] ('''2017'''). ''Mastering Chess and Shogi by Self-Play with a General Reinforcement Learning Algorithm''. [https://arxiv.org/abs/1712.01815 arXiv:1712.01815]</ref>, public available chess entity. The name "Stockfish" reflects the ancestry of the engine. Tord is Norwegian and Marco Italian, and there is a long history of [https://en.wikipedia.org/wiki/Stockfish stockfish] trade from Norway to Italy (to Marco's home town of [https://en.wikipedia.org/wiki/Vicenza Vicenza], in fact).
Stockfish also referred another famous "little fish", the then strongest chess engine [[Rybka]].
=Science versus Commerce?=
There is a wide range of opinions about strong open source chess engines affecting commercial and competitive interests, as well as monetary interests from computer chess users, who obtain a top engine for free. The scientific and social value of strong open source programs is indisputable. The [https://en.wikipedia.org/wiki/Teamwork teamwork] effort to share ideas and knowledge to write one of the strongest programs, which everybody may follow and share to learn and play for free, is definitely a challenging and motivating task, gathering both admiration and enviousness. Obviously, professional programmers of commercial chess programs are not that enthusiastic about the development, and need to improve further and/or focus more on secondary features or other business concepts like on-line play and/or [[GUI|user interface]] issues rather than on pure playing strength.
Also many hobbyist chess programmers feel in antagonism as well, not only caused by Stockfish with its highly respected authors, and before by [[Fruit]] and slightly [[Crafty]], but from [[Ippolit]] and all its successors by pseudonymous authors and disputed origin. The implications on commercial and competitive computer chess are not quite clear, but presumably the decrease in number of participants of over the board [[Tournaments and Matches|tournaments]] will progress and [[Clones|clone]] suspicions may float like a [https://en.wikipedia.org/wiki/Damocles Sword of Damocles] over the scene, whether programmers took ideas too literally or not.
<span id="TestingFramework"></span><span id="Fishtest"></span>
=Fishtest=
The Stockfish Testing Framework dubbed '''Fishtest''' <ref>[https://github.com/glinscott/fishtest glinscott/fishtest · GitHub]</ref> is a web application written by [[Gary Linscott]] <ref>[http://stockfishchess.org/get-involved/ Get Involved - Stockfish - Powerful Open Source Chess Engine]</ref> <ref>[http://www.talkchess.com/forum/viewtopic.php?t=47885 Fishtest Distributed Testing Framework] by [[Marco Costalba]], [[CCC]], May 01, 2013</ref> and is based on a [https://en.wikipedia.org/wiki/SETI@home SETI@home] kind of [https://en.wikipedia.org/wiki/Volunteer_computing volunteer computing].
Fishtest is mainly written in [[Python]] under the ''Pyramid Application Development Framework'' <ref>[http://docs.pylonsproject.org/projects/pyramid/en/latest/ The Pyramid Web Framework — The Pyramid Web Framework v1.5]</ref>, and distributes games across different machines to reduce the test latency and increment throughput. Started in early 2013 with Stockfish 3.0, Fishtest has hundreds of contributors, as of June 2018, 1130 testers and 162 developers <ref>[http://tests.stockfishchess.org/users Stockfish Testing Framework - Users]</ref> active in testing ideas and tweaks <ref>[http://tests.stockfishchess.org/tests Stockfish Testing Framework]</ref>, to make Stockfish the strongest chess entity of the world <ref>[http://adamsccpages.blogspot.com/p/sf-framework-history.html Adam's Computer Chess Pages: Stockfish Progression] by [[Adam Hair]]</ref>.
<span id="EvaluationGuide"></span>
=Evaluation Guide=
Since April 2017 the interactive '''Stockfish Evaluation Guide''' is available to explore Stockfish's [[Evaluation|evaluation]] with a [[JavaScript]] implementation running in a [https://en.wikipedia.org/wiki/Web_browser browser] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=64025&start=27 Re: How far away are we from deep learning Stockfish, Komodo] by [[Gary Linscott|Gary]], [[CCC]], May 21, 2017</ref> . One may enter a [[Forsyth-Edwards Notation|FEN]] string of a [[Chess Position|position]], to get the resulting [[Score|score]] of the main evaluation term considering the [[Game Phases|game phases]] within its [[Tapered Eval|tapered evaluation]], and may navigate through the tree of subterms and features with its particular characteristics for the given position <ref>[https://hxim.github.io/Stockfish-Evaluation-Guide/ Stockfish Evaluation Guide]</ref> .
=Tournament Play=
Stockfish is top contender of the prestigious [[TCEC|Thoresen Chess Engines Competition (TCEC)]], reaching the superfinals since [[TCEC Season 4|season 4]], and clearly established its world number one status in winning recent TCECs, leaving its commercial rivals [[Komodo]] and [[Houdini]] behind.
<span id="Matches"></span>
=GM+Rybka vs. Stockfish=
On July 19, 2014, Stockfish 5 played a four game match versus [https://en.wikipedia.org/wiki/Daniel_Naroditsky Daniel Naroditsky] plus [[Rybka|Rybka 3]] (2008), 45 minutes plus 30-second increment. Stockfish won 3½ - ½ <ref>[http://www.chess.com/article/view/how-rybka-and-i-tried-to-beat-the-strongest-chess-computer-in-the-world Can a GM and Rybka beat Stockfish?] by GM [https://en.wikipedia.org/wiki/Daniel_Naroditsky Daniel Naroditsky], [https://en.wikipedia.org/wiki/Chess.com Chess.com], August 08, 2014</ref> <ref>[http://www.talkchess.com/forum/viewtopic.php?t=53228 GM and Rybka vs. Stockfish] by Robert Maddox, [[CCC]], August 09, 2014</ref> . A few weeks later the experiment continued with [https://en.wikipedia.org/wiki/Hikaru_Nakamura Hikaru Nakamura] in [https://en.wikipedia.org/wiki/Burlingame,_California Burlingame, California] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=53315 Nakamura vs Stockfish, public match 8/23] by Jesse L, [[CCC]], August 17, 2014</ref> . Supported two games by Rybka 3, Nakamura lost ½ - 1½, two games with pawn odds (Stockfish both Black without h- and b-pawn) ended ½ - 1½ in favour to Stockfish 5 as well. It played the latest development build compiled for [[Mac OS|OS X]] running on a 3 GHz 8-Core [[Macintosh|Mac Pro]] <ref>[http://www.chess.com/news/stockfish-outlasts-nakamura-3634 Stockfish Outlasts "Rybkamura"] by [http://www.chess.com/article/view/chesscom-player-profiles-fm-mikeklein FM Mike Klein], [https://en.wikipedia.org/wiki/Chess.com Chess.com], August 24, 2014</ref> .
=Selected Features=
<ref>based on the sources of Stockfish 6</ref>
==[[Board Representation]]==
* [[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>)
* [[Piece-Lists]]
==[[Search]]==
* [[Iterative Deepening]]
* [[Aspiration Windows]]
* [[Parallel Search]] using [[Thread|Threads]]
** [[Young Brothers Wait Concept|YBWC]] prior to Stockfish 7
** [[Lazy SMP]] since Stockfish 7, January 2016
* [[Principal Variation Search]]
* [[Transposition Table]]
** [[Shared Hash Table]]
** 10 [[Byte|Bytes]] per [[Transposition Table#Entry|Entry]], 3 Entries per [[Transposition Table#Bucket|Cluster]]
** [[Transposition Table#ReplacementStrategies|Depth-preferred Replacement Strategy]]
** No [[Node Types#PV|PV-Node]] probing
** [[Memory#Cache|Prefetch]]
* [[Move Ordering]]
** [[Countermove Heuristic]]
** [[History Heuristic#CMHist|Counter Moves History]] since Stockfish 7, January 2016 <ref>[http://www.talkchess.com/forum/viewtopic.php?t=58935&start=2 Re: Stockfish 7 progress] by Lucas Braesch, [[CCC]], January 17, 2016</ref>
** [[History Heuristic]]
** [[Internal Iterative Deepening]]
** [[Killer Heuristic]]
** [[MVV-LVA|MVV/LVA]]
** [[Static Exchange Evaluation|SEE]]
* [[Selectivity]]
** [[Extensions]]
*** [[Check Extensions]] if [[Static Exchange Evaluation|SEE]] >= 0
*** [[Singular Extensions#RestrictedSE|Restricted Singular Extensions]]
** [[Pruning]]
*** [[Futility Pruning]]
*** [[Futility Pruning#MoveCountBasedPruning|Move Count Based Pruning]]
*** [[Null Move Pruning]]
**** [[Depth Reduction R|Dynamic Depth Reduction]] based on [[Depth|depth]] and [[Score|value]]
**** [[Reverse Futility Pruning|Static Null Move Pruning]]
**** [[Null Move Pruning#ZugzwangVerification|Verification search]] at high depths
*** [[ProbCut]]
*** [[Static Exchange Evaluation|SEE Pruning]]
** [[Reductions]]
*** [[Late Move Reductions]]
*** [[Razoring]]
** [[Quiescence Search]]
==[[Evaluation]]==
<ref>See also [[Evaluation Philosophy]] and [http://www.talkchess.com/forum/viewtopic.php?topic_view=threads&p=135133&t=15504 The Art of Evaluation] by [[Tord Romstad]], [[CCC]], August 2, 2007</ref> <ref>[https://hxim.github.io/Stockfish-Evaluation-Guide/ Stockfish Evaluation Guide]</ref>
* [[Tapered Eval]]
* [[Score#Grain|Score Grain]]: ~1/256 of a [[Pawn Advantage, Win Percentage, and Elo|pawn unit]]
* [[Material]]
** [[Point Value|Point Values]]
*** [[Middlegame|Midgame]]: 198, 817, 836, 1270, 2521
*** [[Endgame]]: 258, 846, 857, 1278, 2558
** [[Bishop Pair]]
** [[Material Tables|Imbalance Tables]]
** [[Material Hash Table]]
* [[Piece-Square Tables]]
* [[Space]]
* [[Mobility]]
** [[Trapped Pieces]]
** [[Rook on Open File|Rooks on (Semi) Open Files]]
* [[Outposts]]
* [[Pawn Structure]]
** [[Pawn Hash Table]]
** [[Backward Pawn]]
** [[Doubled Pawn]]
** [[Isolated Pawn]]
** [[Duo Trio Quart (Bitboards)|Phalanx]]
** [[Passed Pawn]]
* [[King Safety]]
** [[King Safety#Attacking|Attacking King Zone]]
** [[King Safety#PawnShield|Pawn Shelter]]
** [[King Safety#PawnStorm|Pawn Storm]]
** [[King Safety#SquareControl|Square Control]]
* [[Evaluation Patterns]]
==Misc==
* [[Chess960]]
* [[Stockfish's Tuning Method]]
: [[SPSA]]
* [[Syzygy Bases]]
=Release Dates=
* 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
* 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
* 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
* 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
* 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
* Stockfish 3 : April 30, 2013
* Stockfish 4 : August 20, 2013
* Stockfish DD : November 29, 2013
* Stockfish 5 : May 31, 2014
* Stockfish 6 : January 27, 2015
* Stockfish 7 : January 02, 2016
* Stockfish 8 : November 01, 2016
* Stockfish 9 : February 01, 2018
<span id="ports"></span>
=Ports=
* [[asmFish]]
* [[CFish]]
* [[DroidFish]]
* [[Portfish]]
* [[Stockfish-js]] <ref>[https://github.com/exoticorn/stockfish-js exoticorn/stockfish-js · GitHub]</ref>
<span id="Derivatives"></span>
=Derivatives=
* [[Brainfish]]
* [[McBrain]]
* [[DON]]
* [[Sting]]
* [[SugaR]]
=See also=
* [[Evaluation Philosophy]]
* [[Various Classifications#Fish|Fish]]
* [[Various Classifications#Food|Food]]
* [[Glaurung]]
* [[LCZero]]
* [[Raspberry Turk]]
=Publications=
* [[Arno Nickel]] ('''2012'''). ''[http://www.edition-marco-shop.de/epages/64079634.sf/de_DE/?ObjectPath=/Shops/64079634/Categories/Schachgeschehen/Computerschach Die schöne neue Welt der Schachengines]''. [http://www.zeitschriftschach.de/ SCHACH] 2,3,5,6 2012, [http://www.edition-marco-shop.de/WebRoot/Store14/Shops/64079634/5177/F0A3/C389/D0DD/3A71/C0A8/2935/25F6/Die_schoene_neue_Welt_der_Schachengines.pdf pdf] (German) <ref>Part 1 covers [[Houdini]], [[Rybka]], [[Komodo]], [[Stockfish]], [[Critter]], [[Naum]], [[Chiron]] and [[Spike]]</ref>
* [[Oleg Arenz]] ('''2012'''). ''Monte Carlo Chess''. B.Sc. thesis, [[Darmstadt University of Technology]], advisor [[Johannes Fürnkranz]], [http://www.ke.tu-darmstadt.de/lehre/arbeiten/bachelor/2012/Arenz_Oleg.pdf pdf] » [[Monte-Carlo Tree Search]]
* [[Tamal T. Biswas]], [[Kenneth Wingate Regan|Kenneth W. Regan]] ('''2015'''). ''Quantifying Depth and Complexity of Thinking and Knowledge''. [http://www.icaart.org/EuropeanProjectSpace.aspx?y=2015 ICAART 2015], [http://www.cse.buffalo.edu/~regan/papers/pdf/BiReICAART15CR.pdf pdf]
* [[Tamal T. Biswas]], [[Kenneth Wingate Regan|Kenneth W. Regan]] ('''2015'''). ''Measuring Level-K Reasoning, Satisficing, and Human Error in Game-Play Data''. [[IEEE]] [http://www.icmla-conference.org/icmla15/ ICMLA 2015], [http://www.cse.buffalo.edu/~regan/papers/pdf/BiRe15_ICMLA2015.pdf pdf preprint]
* [[Shu Yokoyama]], [[Tomoyuki Kaneko]], [[Tetsuro Tanaka]] ('''2015'''). ''Parameter-Free Tree Style Pipeline in Asynchronous Parallel Game-Tree Search''. [[Advances in Computer Games 14]] , [http://www.graco.c.u-tokyo.ac.jp/~kaneko/papers/acg2015-yokoyama.pdf pdf] » [[Shu Yokoyama#PGPP|P-GPP]]
* [[Jean-Marc Alliot]] ('''2017'''). ''Who is the Master''? [[ICGA Journal#39_1|ICGA Journal, Vol. 39, No. 1]], [http://www.alliot.fr/CHESS/draft-icga-39-1.pdf draft as pdf] <ref>[http://www.alliot.fr/CHESS/ficga.html.en Who is the Master?] from [[Jean-Marc Alliot|Jean-Marc Alliot's]] [http://www.alliot.fr/fpro.html.en professional website]</ref>
=Videos=
* [[Daylen Yang#Video|How do modern chess engines work? | Video]], Talk by [[Daylen Yang]], [http://www.tngtech.com/tng-ueber-uns/bigtechday/big-techday-8.html TNG | Big Techday 8], June 12, 2015
* [[Tord Romstad#Video|Parallelism and Selectivity in Game Tree Search | Video]], Talk by [[Tord Romstad]], [http://www.tngtech.com/tng-ueber-uns/bigtechday/big-techday-8.html TNG | Big Techday 8], June 12, 2015
* [[Tord Romstad#Video|How Modern Chess Programs Work | Video]] by [[Tord Romstad]], [http://2017.flatmap.no/talks/romstad/ flatMap(Oslo)], May 02, 2017
=Forum Posts=
==2008 ...==
* [http://www.talkchess.com/forum/viewtopic.php?t=24675 Stockfish 1.0] by [[Marco Costalba]], [[CCC]], November 02, 2008
* [http://www.talkchess.com/forum/viewtopic.php?t=24771 Please drop Stockfish] by [[Marco Costalba]], [[CCC]], November 07, 2008
'''2009'''
* [http://wbec-ridderkerk.forumotion.com/wbec-ridderkerk-news-info-f1/stockfish-glaurung-t402.htm Re: Stockfish - Glaurung] by [[Tord Romstad]], [http://wbec-ridderkerk.forumotion.com/forum.htm WBEC-Ridderkerk forum], September 05, 2009
* [http://www.talkchess.com/forum/viewtopic.php?t=30051 Stockfish 1.5.1] by [[Marco Costalba]], [[CCC]], October 08, 2009
==2010 ...==
* [http://www.talkchess.com/forum/viewtopic.php?t=33677 Stockfish 1.7] by [[Marco Costalba]], [[CCC]], April 08, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=33705 Stockfish-1.7.0 Hyper-threading Detection] by [[Louis Zulli]], [[CCC]], April 09, 2010 » [[Thread]]
* [http://www.talkchess.com/forum/viewtopic.php?t=33779 stockfish fail high fail low] by [[Uri Blass]], [[CCC]], April 13, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=33813 MTD experiment with stockfish 1.7.1] by [[Vratko Polák]], [[CCC]], April 15, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=33842 about stockfish and logic] by [[Uri Blass]], [[CCC]], April 17, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=34159 Stockfish - material balance/imbalance evaluation] by [[Ralph Stoesser]], [[CCC]], May 05, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=34286 Qsearch of Stockfish 1.7.1] by [[Ferdinand Mosca]], [[CCC]], May 13, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=34670 Stockfish do_move + undo_move] by [[Matthew Purland]], [[CCC]], June 02, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=34909 static null move pruning is stockfish] by [[Tom King]], [[CCC]], June 13, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=35186 Stockfish - single evasion extensions] by [[Ralph Stoesser]], [[CCC]], June 27, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=35246 Stockfish 1.8 JA available] by [[Jim Ablett]], [[CCC]], July 02, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=35284 stockfish 1.8 - Eval hash gone?] by [[Edward Yu]], [[CCC]], July 04, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=35419 Stockfish Singular Extension, does it make sense?] by [[Volker Böhm]], [[CCC]], July 08, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=35355 Stockfish 1.8 tweaks] by [[Vratko Polák]], [[CCC]], July 09, 2010
* [http://www.open-chess.org/viewtopic.php?f=3&t=423 Stockfish question] by [[Ed Schroder|Rebel]], [[Computer Chess Forums|OpenChess Programming Forum]], July 10, 2010
* [http://www.open-chess.org/viewtopic.php?f=5&t=434 Taken from CCC (Stockfish & mainlines)] by [[Ed Schroder|Rebel]], [[Computer Chess Forums|OpenChess Programming Forum]], July 12, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=35459 backward pawns in Stockfish] by [[Marek Kwiatkowski]], [[CCC]], July 16, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=35455 Questions for the Stockfish team] by [[Michael Sherwin]], [[CCC]], July 16, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=35496 Stockfish 1.8 - eval cache] by [[Ralph Stoesser]], [[CCC]], July 18, 2010 » [[Evaluation Hash Table]]
* [http://www.talkchess.com/forum/viewtopic.php?t=35543 Stockfish null move pre-condition] by [[Rein Halbersma]], [[CCC]], July 22, 2010 » [[Null Move Pruning]]
* [http://www.talkchess.com/forum/viewtopic.php?t=35901 Stockfish for 39 dollars] by [[Matthias Gemuh]], [[CCC]], August 26, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=36239 Stockfish 1.9 JA update available] by [[Jim Ablett]], [[CCC]], October 02, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=36307 mobility evaluation of stockfish] by [[Uri Blass]], [[CCC]], October 09, 2010
'''2011'''
* [http://www.talkchess.com/forum/viewtopic.php?t=37399 Stockfish 2.0 Available] by [[Jim Ablett]], [[CCC]], January 01, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=37450 Stockfish 2.0.0 tests] by [[Harun Taner]], [[CCC]], January 04, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=37468 Stockfish "Use Sleeping Threads" Test] by [[Louis Zulli]], [[CCC]], January 05, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=37573 StockFish engine] by [[Andriy Dzyben]], [[CCC]], January 11, 2011
* [http://www.open-chess.org/viewtopic.php?f=5&t=1042 Designing an analysis friendly Stockfish?] by Uly, [[Computer Chess Forums|Open Chess Programming Forum]], January 28, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=38198 Why are the Ippo derivative stronger than Stockfish?] by [[Larry Kaufman]], [[CCC]], 24 February, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=38740 Transposition Table updates in Stockfish] by [[Onno Garms]], [[CCC]], April 12, 2011 » [[Transposition Table]]
* [http://www.talkchess.com/forum/viewtopic.php?t=38760 Stockfish random generator (rkiss.h)] by [[Martin Sedlak]], [[CCC]], Apr 15, 2011 » [[Bob Jenkins]]
* [http://www.talkchess.com/forum/viewtopic.php?t=39169 futility pruning in stockfish] by [[Engin Üstün]], [[CCC]], May 25, 2011 » [[Futility Pruning]]
* [http://www.talkchess.com/forum/viewtopic.php?t=39214 Stockfish clones in the AppStore: it's becoming a plague...] by [[Julien Marcel]], [[CCC]], May 28, 2011 » [[Clones]]
* [http://www.talkchess.com/forum/viewtopic.php?t=39346 Root node search in Stockfish] by [[Onno Garms]], [[CCC]], June 12, 2011 » [[Move Ordering]], [[Root]]
* [http://www.talkchess.com/forum/viewtopic.php?t=40562 Grandmaster prefers Stockfish evals] by [[Albert Silver]], [[CCC]], September 29, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=40610 Stockfish on github] by [[Marco Costalba]], [[CCC]], October 02, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=40662 Stockfish's tuning method] by [[Joona Kiiski]], [[CCC]], October 07, 2011 » [[Stockfish's Tuning Method]]
'''2012'''
* [http://www.talkchess.com/forum/viewtopic.php?t=41732 StockFish LS with LimitStrength feature] by [[Alexander Schmidt]], [[CCC]], January 01, 2012
* [http://www.talkchess.com/forum/viewtopic.php?t=41916 Stockfish Code ( Piece Value's)] by Nolan Denson, [[CCC]], January 10, 2012 » [[Point Value]]
* [http://www.talkchess.com/forum/viewtopic.php?t=41917 Stockfish hash implementation] by [[Jon Dart]], [[CCC]], January 10, 2012 » [[Transposition Table]]
* [http://www.talkchess.com/forum/viewtopic.php?t=41999 Stockfish 2.2.2 JA update available] by [[Jim Ablett]], [[CCC]], January 14, 2012
* [http://www.talkchess.com/forum/viewtopic.php?p=454327 CLOP on Stockfish] by [[Gary Linscott|Gary]], [[CCC]], March 10, 2012 » [[CLOP]]
* [http://www.talkchess.com/forum/viewtopic.php?t=42841 optimal aspiration window for stockfish question] by [[Uri Blass]], [[CCC]], March 12, 2012 » [[Aspiration Windows]]
* [http://www.talkchess.com/forum/viewtopic.php?t=44901 Raspberry Pi / Stockfish dedicated chess computer/board] by [[Jean-Francois Romang]], [[CCC]], August 26, 2012 » [[Raspberry Pi]], [[Dedicated Chess Computers]]
* [http://www.talkchess.com/forum/viewtopic.php?t=45163 Stockfish 2.3 update available] by [[Jim Ablett]], [[CCC]], September 15, 2012
'''2013'''
* [http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=26392 10 Lessons to be Learned from todays Top Engines] by Josef, [[Computer Chess Forums|Rybka Forum]], January 03, 2013 » [[Houdini]], [[Komodo]]
* [http://www.talkchess.com/forum/viewtopic.php?t=47881 Stockfish 3 Official JA Windows/Linux builds available] by [[Jim Ablett]], [[CCC]], April 30, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=47885 Fishtest Distributed Testing Framework] by [[Marco Costalba]], [[CCC]], May 01, 2013 » [[Stockfish#Fishtest|Fishtest]]
* [http://www.talkchess.com/forum/viewtopic.php?t=47953&start=10 Re: History pruning / move ordering question] by [[Joona Kiiski]], [[CCC]], May 12, 2013 » [[Countermove Heuristic]]
* [http://open-chess.org/viewtopic.php?f=7&t=2322 Stockfish 3 PA_GTB] by [[Jeremy Bernstein]], [[Computer Chess Forums|OpenChess Forum]], May 15, 2013
* [http://www.talkchess.com/forum/viewtopic.php?p=518426 Probcut] by [[Gary Linscott|Gary]], [[CCC]], May 24, 2013 » [[ProbCut]]
* [http://www.talkchess.com/forum/viewtopic.php?t=48149 Stockfish bug] by [[Steven Atkinson]], [[CCC]], May 30, 2013 » [[Repetitions]]
* [http://www.talkchess.com/forum/viewtopic.php?t=48602 The Ultimate Stockfish!] by [[Michael Scheidl|Mike Scheidl]], [[CCC]], July 09, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=48612 use sleeping threads] by [[Don Dailey]], [[CCC]], July 10, 2013 » [[Parallel Search]], [[Thread]]
* [http://www.talkchess.com/forum/viewtopic.php?t=49035 Stockfish 4] by [[Marco Costalba]], [[CCC]], August 20, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=49283 18 days from SF4 release and about ~30+ ELO gain!] by Alexandre Meirelles Souza, [[CCC]], September 08, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=49375 How much of Stockfish code is still from Tord Romstad?] by [[Jouni Uski]], [[CCC]], September 16, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=49439 Syzygy tablebases, work in Stockfish?] by [[Jose Maria Velasco|Jose Mº Velasco]], [[CCC]], September 23, 2013 » [[Syzygy Bases]]
* [http://www.talkchess.com/forum/viewtopic.php?t=49854 Stockfish search] by [[Harm Geert Muller]], [[CCC]], October 28, 2013 » [[Principal variation]]
* [http://hiarcs.net/forums/viewtopic.php?t=6425 Some food for thought] by [[The Spacious Mind|Spacious Mind]], [[Computer Chess Forums|Hiarcs Forum]], November 11, 2013 » [[Stockfish]] vs. [[ChessMachine|Tasc CM32 512K]] [[The King|The King 2.2]]
* [http://www.talkchess.com/forum/viewtopic.php?t=50083 Stockfish scaling] by [[Ed Schroder|Ed Schröder]], [[CCC]], November 15, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=50220 Stockfish depth vs. others; challenge] by [[Larry Kaufman]], [[CCC]], November 24, 2013 » [[Depth]]
* [http://www.talkchess.com/forum/viewtopic.php?t=50275 Stockfish DD: a new official release] by [[Marco Costalba]], [[CCC]], November 29, 2013 » [[TCEC Season 5]], dedicated to [[Don Dailey]]
* [http://www.talkchess.com/forum/viewtopic.php?t=50296 Stockfish Syzygy: how to interpret mates?] by [[Jouni Uski]], [[CCC]], December 01, 2013 » [[Syzygy Bases]], [[Score#MateScores|Mate Scores]]
* [http://www.talkchess.com/forum/viewtopic.php?t=50587 Is SF DD greater efficiency would be null move pruning?] by Jonathan Lee, [[CCC]], December 22, 2013 » [[Null Move Pruning]]
'''2014'''
* [http://www.talkchess.com/forum/viewtopic.php?t=50742 Help me to test an idea for Stockfish] by Robert Tournevisse, [[CCC]], January 03, 2014 » [[Piece-Square Tables]], [[Tapered Eval]]
* [http://www.talkchess.com/forum/viewtopic.php?t=50989 Stockfish seems definitely the strongest engine] by [[Kai Laskos]], [[CCC]], January 21, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=50992 Stockfish Mac app] by [[Daylen Yang]], [[CCC]], January 22, 2014 » [[Macintosh]]
* [http://www.talkchess.com/forum/viewtopic.php?t=51096 Stockfish goes EGBB] by [[Daniel Shawul]], [[CCC]], January 29, 2014 » [[Scorpio Bitbases]]
* [http://www.talkchess.com/forum/viewtopic.php?t=51129 fixing the null move search "bug"] by [[Uri Blass]], [[CCC]], February 01, 2014 » [[Null Move Pruning]]
* [http://www.talkchess.com/forum/viewtopic.php?t=51291 Disabling Null Move Pruning in Stockfish] by [[Louis Zulli]], [[CCC]], February 15, 2014 » [[Null Move Pruning]]
* [http://www.talkchess.com/forum/viewtopic.php?t=51655 Threads-Test] by [[Andreas Strangmüller]], [[CCC]], March 18, 2014 » [[Thread]], [[Parallel Search]]
* [http://www.talkchess.com/forum/viewtopic.php?t=51879 Stockfish haswell optimized build] by [[Jean-Francois Romang]], [[CCC]], April 06, 2014 » [[BMI2]]
* [http://www.talkchess.com/forum/viewtopic.php?t=52117&start=1 Huge simplification] by [[Lyudmil Tsvetkov]], [[CCC]], April 25, 2014 » [[Pawn chain]]
* [http://www.talkchess.com/forum/viewtopic.php?t=52204 Stockfish zero evals] by [[Larry Kaufman]], [[CCC]], May 02, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=52219 Threads-Test - SF, Zappa, Komodo - 1 vs. 2, 4, 8, 16 Threads] by [[Andreas Strangmüller]], [[CCC]], May 04, 2014 » [[Thread]], [[Stockfish]], [[Zappa]], [[Komodo]]
* [http://www.talkchess.com/forum/viewtopic.php?t=52231 investigating why stockfish is strong idea] by [[Uri Blass]], [[CCC]], May 05, 2014
* [http://www.talkchess.com/forum/viewtopic.php?p=570955 Threads factor: Komodo, Houdini, Stockfish and Zappa] by [[Andreas Strangmüller]], [[CCC]], May 17, 2014 » [[Komodo]], [[Houdini]], [[Stockfish]], [[Zappa]]
* [https://groups.google.com/d/msg/fishcooking/WNrxeXAJ6VI/ZkCnRv4I_qEJ Goodbye CLOP, hello SPSA] by [[Gary Linscott]], [[Computer Chess Forums|FishCooking]], May 17, 2014 » [[CLOP]], [[SPSA]]
* [http://www.talkchess.com/forum/viewtopic.php?t=52487 Stockfish 5] by [[Marco Costalba]], [[CCC]], May 31, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=52781 Stockfish Status Report] by [[Louis Zulli]], [[CCC]], June 27, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=53228 GM and Rybka vs. Stockfish] by Robert Maddox, [[CCC]], August 09, 2014 » [[Stockfish#Matches|GM+Rybka vs. Stockfish]]
* [http://www.talkchess.com/forum/viewtopic.php?t=53315 Nakamura vs Stockfish, public match 8/23] by Jesse L, [[CCC]], August 17, 2014
* [https://chesscomputer.tumblr.com/post/98632536555/using-the-stockfish-position-evaluation-score-to/embed Using the Stockfish position evaluation score to predict victory probability] by unavoidablegrain, [https://en.wikipedia.org/wiki/Tumblr Tumblr], September 28, 2014 » [[Pawn Advantage, Win Percentage, and Elo]]
* [http://www.talkchess.com/forum/viewtopic.php?t=53995 Threads test incl. Stockfish 5 and Komodo 8] by [[Andreas Strangmüller]], [[CCC]], October 09, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=54009 Threads test - Stockfish 5 against Komodo 8] by [[Andreas Strangmüller]], [[CCC]], October 10, 2014 » [[Thread]], [[Parallel Search]], [[Stockfish]], [[Komodo]]
* [http://www.talkchess.com/forum/viewtopic.php?t=54750 Stockfish and accurate PV] by [[Matthew Lai]], [[CCC]], December 25, 2014 » [[Principal variation]]
* [http://www.talkchess.com/forum/viewtopic.php?t=54798 Stockfish 32-bit and hardware instructions on MSVC++] by [[Syed Fahad]], [[CCC]], December 30, 2014 » [[BitScan]], [[Population Count]]
==2015 ...==
* [http://www.talkchess.com/forum/viewtopic.php?t=54891 Stockfish in Lozza UIs] by [[Colin Jenkins]], [[CCC]], January 07, 2015 » [[Lozza]], [[Stockfish-js]] <ref>[https://github.com/exoticorn/stockfish-js exoticorn/stockfish-js · GitHub]</ref>
* [http://www.talkchess.com/forum/viewtopic.php?t=55122 SF6 has been released] by [[Joona Kiiski]], [[CCC]], January 27, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55167 Stockfish 6 is impressive in Behting study] by [[Jouni Uski]], [[CCC]], January 31, 2015 » [[Behting Study]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55352 Stockfish with 16 threads - big news?] by [[Louis Zulli]], [[CCC]], February 15, 2015 » [[Thread]]
: [http://www.talkchess.com/forum/viewtopic.php?t=55368 Explanation for non-expert?] by [[Louis Zulli]], [[CCC]], February 16, 2015 » [[Parallel Search]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55402 Stockfish still scales poorly?] by [[Louis Zulli]], [[CCC]], February 20, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55409 Measuring SF idle time] by [[Louis Zulli]], [[CCC]], February 21, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55494 Better NPS scaling for Stockfish] by [[Louis Zulli]], [[CCC]], February 27, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55510 Stockfish Questions] by [[Syed Fahad]], [[CCC]], February 28, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55536 Best Stockfish NPS scaling yet] by [[Louis Zulli]], [[CCC]], March 02, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55623 Stockfish contempt factor] by [[Kai Laskos]], [[CCC]], March 10, 2015 » [[Contempt Factor]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55792 Improving SF passer code] by [[Lyudmil Tsvetkov]], [[CCC]], March 26, 2015 » [[Connected Passed Pawns]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55846 Problem with SF6 and Syzygy TB] by Forrest Hoch, [[CCC]], April 01, 2015 » [[Syzygy Bases]]
* [http://www.talkchess.com/forum/viewtopic.php?t=56019 Empirical results with Lazy SMP, YBWC, DTS] by [[Kai Laskos]], [[CCC]], April 16, 2015 » [[Lazy SMP]], [[Young Brothers Wait Concept|YBWC]], [[Dynamic Tree Splitting|DTS]]
* [http://www.talkchess.com/forum/viewtopic.php?t=56543 The effective speedup from 1 to 8 cpus for SF and Komodo] by [[Adam Hair]], [[CCC]], May 31, 2015 » [[Parallel Search]], [[Komodo]]
* [http://www.talkchess.com/forum/viewtopic.php?t=58056 New Stockfish with Lazy_SMP, but what about the TC bug ?] by [[Ernest Bonnem]], [[CCC]], October 26, 2015 » [[Parallel Search]], [[TCEC Season 8]]
* [https://goo.gl/QLcPAF Binary for TCEC superfinal] by Kiran Panditrao, [[Computer Chess Forums|FishCooking]], October 30, 2015 » [[TCEC Season 8]]
* [http://www.talkchess.com/forum/viewtopic.php?t=58103 SF binaries for TCEC superfinal] by [[Marco Costalba]], [[CCC]], October 31, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=58210 Stockfish dev 091115 for ANDROID] by Nathanael Russell, [[CCC]], November 09, 2015 » [[Android]]
* [http://www.talkchess.com/forum/viewtopic.php?t=58236 Stockfish now benefits from hyperthreading] by [[Dmitri Gusev]], [[CCC]], November 12, 2015 » [[Thread]]
* [http://www.talkchess.com/forum/viewtopic.php?t=58703 Stockfish 7 beta 1] by [[Joona Kiiski]], [[CCC]], December 27, 2015
* [http://www.open-chess.org/viewtopic.php?f=5&t=2942 Another GHI example in SF (maybe)] by [[Mark Watkins|BB+]], [[Computer Chess Forums|OpenChess Forum]], December 30, 2015 » [[Graph History Interaction]]
'''2016'''
* [http://www.talkchess.com/forum/viewtopic.php?t=58779 Stockfish 7] by [[Joona Kiiski]], [[CCC]], January 02, 2016
* [http://www.talkchess.com/forum/viewtopic.php?t=58887 Threads test incl. Stockfish 7] by [[Andreas Strangmüller]], [[CCC]], January 11, 2016 » [[Thread]], [[Parallel Search]]
* [http://www.talkchess.com/forum/viewtopic.php?t=58935 Stockfish 7 progress] by Carl Lumma, [[CCC]], January 16, 2016
* [http://www.talkchess.com/forum/viewtopic.php?t=58990 Oddity around depths 7-8 with Stockfish 6 & 7] by [[Kenneth Wingate Regan|Ken Regan]], [[CCC]], January 21, 2016
* [http://www.talkchess.com/forum/viewtopic.php?t=59407 Stockfish 7 and partial 6 piece syzygy problem?] by [[Jouni Uski]], [[CCC]], March 01, 2016
: [http://www.talkchess.com/forum/viewtopic.php?t=59407&start=12 Re: Stockfish 7 and partial 6 piece syzygy problem?] by [[Marco Costalba]], [[CCC]], September 01, 2016
* [http://www.talkchess.com/forum/viewtopic.php?t=59543 Computer Chess Progress: Stockfish 7 vs Ruffian 1.0.5] by [[Martin Fierz]], [[CCC]], March 17, 2016 » [[Ruffian]]
* [http://www.talkchess.com/forum/viewtopic.php?t=60312 Natural TB] by [[Marco Costalba]], [[CCC]], May 29, 2016 » [[Syzygy Bases]]
* [http://www.talkchess.com/forum/viewtopic.php?t=61250 Stockfish eval output] by [[Erin Dame]], [[CCC]], August 27, 2016 » [[Wrong color Bishop and rook pawn]]
* [http://www.talkchess.com/forum/viewtopic.php?t=61373&start=2 Re: Beginner's guide to graphical profiling] by [[Marco Costalba]], [[CCC]], September 10, 2016 » [[Profiling]]
* [http://www.talkchess.com/forum/viewtopic.php?t=61444 ELO inflation ha ha ha] by [[Henk van den Belt]], [[CCC]], September 16, 2016 » [[Delphil]], [[Match Statistics]], [[Playing Strength]], [[TCEC Season 9]] <ref>[http://tcec.chessdom.com/archive.php?se=9&rapid&ga=163 Delphil 3.3b2 (2334) - Stockfish 030916 (3228), TCEC Season 9 - Rapid, Round 11], September 16, 2016</ref>
* [http://www.talkchess.com/forum/viewtopic.php?t=61601 Stockfish underpromotes much more often than Komodo] by [[Kai Laskos]], [[CCC]], October 05, 2016 » [[Komodo]], [[Match Statistics]], [[Promotions]]
* [http://www.talkchess.com/forum/viewtopic.php?t=61850 couple of questions about stockfish code ?] by [[Mahmoud Uthman]], [[CCC]], October 26, 2016 » [[SIMD and SWAR Techniques]], [[Tapered Eval]]
* [https://groups.google.com/d/msg/fishcooking/LCoojE9O5jU/h6xgvg2EBgAJ Stockfish 8] by [[Marco Costalba]], [[Computer Chess Forums|FishCooking]], November 01, 2016
* [http://www.talkchess.com/forum/viewtopic.php?t=61924 Stockfish 8 official] by [[Marco Costalba]], [[CCC]], November 01, 2016
* [https://groups.google.com/d/msg/fishcooking/7hHC075ZnnM/IaITCiLaBwAJ NUMA test compilation] by Joachim Müller, [[Computer Chess Forums|FishCooking]], November 05, 2016 » [[NUMA]]
* [http://www.talkchess.com/forum/viewtopic.php?t=62146 Stockfish 8 - Double time control vs. 2 threads] by [[Andreas Strangmüller]], [[CCC]], November 15, 2016 » [[Match Statistics#DoublingTC|Doubling TC]], [[Depth#DiminishingReturns|Diminishing Returns]], [[Playing Strength]], [[Lazy SMP]]
* [http://www.open-chess.org/viewtopic.php?f=3&t=3044 Stockfish benchmark data] by [[Adam Hair]], [[Computer Chess Forums|OpenChess Forum]], November 27, 2016
* [https://groups.google.com/d/msg/fishcooking/M2bkzC3MuFQ/N3pHK4DcAgAJ The new chess rules (5-fold repetition and 75-move draw)] by [[Lyudmil Antonov]], [[Computer Chess Forums|FishCooking]], November 29, 2016 » [[Repetitions]], [[Fifty-move Rule]]
* [http://www.talkchess.com/forum/viewtopic.php?t=62452 Scoutfish: powerful chess query tool] by [[Marco Costalba]], [[CCC]], December 11, 2016 » [[Databases]], [[Portable Game Notation]], [[Scoutfish]]
'''2017'''
* [http://www.talkchess.com/forum/viewtopic.php?t=62822 SF Progression since Fishtest inception] by [[Adam Hair]], [[CCC]], January 14, 2017 » [[Stockfish#Fishtest|Fishtest]]
* [http://www.talkchess.com/forum/viewtopic.php?t=54697&start=50 Re: Chessprogams with the most chessknowing] by [[Marco Costalba]], [[CCC]], February 19, 2017 » [[Knowledge#SearchVersusEvaluation|Search versus Evaluation]]
* [http://www.talkchess.com/forum/viewtopic.php?t=63903 Symmetric multiprocessing (SMP) scaling - SF8 and K10.4] by [[Andreas Strangmüller]], [[CCC]], May 05, 2017 » [[Lazy SMP]], [[Komodo]]
* [http://www.talkchess.com/forum/viewtopic.php?t=63967 Symmetric multiprocessing (SMP) scaling - SF8 Contempt=10] by [[Andreas Strangmüller]], [[CCC]], May 13, 2017 » [[SMP]], [[Contempt Factor]]
* [http://www.talkchess.com/forum/viewtopic.php?t=64720 Stockfish version with hash saving capability] by [[Daniel José Queraltó]], [[CCC]], July 25, 2017 » [[Persistent Hash Table]]
* [http://www.talkchess.com/forum/viewtopic.php?t=60312&start=240 Natural TB (take 2)] by [[Marco Costalba]], [[CCC]], August 22, 2017 » [[Syzygy Bases]]
* [http://www.talkchess.com/forum/viewtopic.php?t=64972 Approximating Stockfish's Evaluation by PSQTs] by [[Thomas Dybdahl Ahle]], [[CCC]], August 23, 2017 » [[Automated Tuning#Regression|Regression]], [[Piece-Square Tables]]
* [http://www.talkchess.com/forum/viewtopic.php?t=65017 Stockfish no progress in 2month and half , why ?] by Jean Baptiste, [[CCC]], August 28, 2017
* [http://www.talkchess.com/forum/viewtopic.php?t=65216 Stockfish testing at STC and LTC: one question] by [[Jouni Uski]], [[CCC]], September 19, 2017
* [http://www.talkchess.com/forum/viewtopic.php?t=65288 Scaling from FGRL results with top 3 engines] by [[Kai Laskos]], [[CCC]], September 26, 2017 » [[FGRL]], [[Houdini]], [[Komodo]]
* [http://www.talkchess.com/forum/viewtopic.php?t=65919 AlphaZero vs Stockfish] by Bigler, [[CCC]], December 06, 2017 » [[AlphaZero#StockfishMatch|AlphaZero vs. Stockfish]]
* [https://groups.google.com/forum/#!topic/fishcooking/AE4EgWQ20dY A branch to test the Monte Carlo algorithm in Stockfish] by Stephane Nicolet, [[Computer Chess Forums|FishCooking]], December 06, 2017 » [[Monte-Carlo Tree Search]], [[AlphaZero]]
* [http://www.talkchess.com/forum/viewtopic.php?t=65934 Reactions about AlphaZero from top GMs...] by [[Norman Schmidt]], [[CCC]], December 08, 2017 » [[AlphaZero#Reactions|AlphaZero: Reactions From Top GMs, Stockfish Author]], [[Tord Romstad]]
* [https://groups.google.com/d/msg/fishcooking/rMCfc8zMerc/F01WuNtDCgAJ MCTS wrapper for StockFish] by [[Jonathan Baxter]], [[Computer Chess Forums|FishCooking]], December 19, 2017 » [[Monte-Carlo Tree Search]]
''''''==
* [http://www.talkchess.com/forum/viewtopic.php?t=66340 Stockfish 8 - Initial position until depth 59] by [[Andreas Strangmüller]], [[CCC]], January 16, 2018 » [[Initial Position]]
* [http://www.talkchess.com/forum/viewtopic.php?t=66444 New Stockfish contempt] by [[Jouni Uski]], [[CCC]], January 29, 2018 » [[Contempt Factor]]
* [http://www.talkchess.com/forum/viewtopic.php?t=66470 Stockfish 9] by [[Marco Costalba]], [[CCC]], February 01, 2018
* [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]]
=External Links=
==Chess engine==
* [https://stockfishchess.org/ Stockfish - Open Source Chess Engine]
* [https://stockfishchess.org/get-involved/ Get Involved - Stockfish - Powerful Open Source Chess Engine]
: [http://tests.stockfishchess.org/tests Stockfish Testing Framework] » [[Stockfish#Fishtest|Fishtest]]
: [https://hxim.github.io/Stockfish-Evaluation-Guide/ Stockfish Evaluation Guide] » [[Stockfish#EvaluationGuide|Stockfish Evaluation Guide]]
: [https://groups.google.com/forum/#!forum/fishcooking FishCooking - Google Groups] a discussion group for developers and testers of [[Stockfish]] chess engine
* <span id="Support"></span>[http://support.stockfishchess.org/home Welcome - Stockfish Support]
* [https://github.com/official-stockfish/Stockfish official-stockfish/Stockfish · GitHub]
* [https://github.com/zamar zamar · GitHub] by [[Joona Kiiski]]
: [https://github.com/zamar/spsa SPSA Tuner for Stockfish Chess Engine] » [[SPSA]]
* [http://abrok.eu/stockfish/ Stockfish Development Versions] hosted by [[Roman Korba]]
* [https://stockfishchess.de/ Stockfish Development Versions for macOS]
* [http://blog.stockfishchess.org/ Stockfish Blog]
* [http://twitter.com/stockfishchess stockfishchess] on [https://en.wikipedia.org/wiki/Twitter Twitter]
* [https://en.wikipedia.org/wiki/Stockfish_%28chess%29 Stockfish (chess) from Wikipedia]
* [http://www.chess.fortherapy.co.uk/ Arduino & Raspberry PI Chess Computer] running [[Stockfish]] on [[Raspberry Pi]], by [[Max Dobres]] » [[Arduino]], [[Sensory Board]]
* [http://tech.mit.edu/V133/N62/chess.html One chess champion per laptop] by [http://www.mit.edu/~roberto/ Roberto Perez-Franco], [[Massachusetts Institute of Technology|MIT's]] [https://en.wikipedia.org/wiki/The_Tech_%28newspaper%29 The Tech], January 15, 2014 » [[TCEC Season 5]]
* [http://en.chessbase.com/post/john-hartmann-and-then-there-were-two And then there were two] by [http://en.chessbase.com/author/john-hartmann John Hartmann], [[ChessBase|ChessBase News]], June 09, 2015 » [[Komodo]], [[Stockfish]]
* [https://rjlipton.wordpress.com/2015/10/06/depth-of-satisficing/ Depth of Satisficing] by [[Kenneth Wingate Regan|Ken Regan]], [https://rjlipton.wordpress.com/ Gödel's Lost Letter and P=NP], October 06, 2015 » [[Depth]], [[Match Statistics]], [[Pawn Advantage, Win Percentage, and ELO]], [[Stockfish]], [[Komodo]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=57890 Regan's latest: Depth of Satisficing] by Carl Lumma, [[CCC]], October 09, 2015</ref>
* [https://rjlipton.wordpress.com/2016/01/21/a-chess-firewall-at-zero/ A Chess Firewall at Zero?] by [[Kenneth Wingate Regan|Ken Regan]], [https://rjlipton.wordpress.com/ Gödel's Lost Letter and P=NP], January 21, 2016
* [http://adamsccpages.blogspot.com/p/sf-framework-history.html Adam's Computer Chess Pages: Stockfish Progression] by [[Adam Hair]] » [[Stockfish#Fishtest|Fishtest]]
==Rating Lists==
* [http://www.computerchess.org.uk/ccrl/4040/cgi/compare_engines.cgi?family=Stockfish&print=Rating+list&print=Results+table&print=LOS+table&print=Ponder+hit+table&print=Eval+difference+table&print=Comopp+gamenum+table&print=Overlap+table&print=Score+with+common+opponents Stockfish] from [[CCRL|CCRL 40/40]]
* [http://computerchess.org.uk/ccrl/404/cgi/engine_details.cgi?print=Details&each_game=1&eng=Stockfish%205%2064-bit%204CPU#Stockfish_5_64-bit_4CPU Stockfish 5 64-bit 4CPU] in [[CCRL|CCRL 40/4]]
==Matches==
* [http://www.chess.com/article/view/how-rybka-and-i-tried-to-beat-the-strongest-chess-computer-in-the-world Can a GM and Rybka beat Stockfish?] by GM [https://en.wikipedia.org/wiki/Daniel_Naroditsky Daniel Naroditsky], [https://en.wikipedia.org/wiki/Chess.com Chess.com], August 08, 2014 » [[Stockfish#Matches|GM+Rybka vs. Stockfish]]
* [http://www.chess.com/news/stockfish-outlasts-nakamura-3634 Stockfish Outlasts "Rybkamura"] by [http://www.chess.com/article/view/chesscom-player-profiles-fm-mikeklein FM Mike Klein], [https://en.wikipedia.org/wiki/Chess.com Chess.com], August 24, 2014
* [https://www.chess.com/news/view/alphazero-reactions-from-top-gms-stockfish-author AlphaZero: Reactions From Top GMs, Stockfish Author] by [http://www.chessvibes.com/?q=peterdoggers Peter Doggers], [https://en.wikipedia.org/wiki/Chess.com Chess.com], December 08, 2017 » [[AlphaZero#StockfishMatch|AlphaZero vs. Stockfish]]
==Interviews==
* [http://www.schach-welt.de/schach/computerschach/interviews/romstad-kiiski-costalba-eng Computerschach, Interview with Tord Romstad (Norway), Joona Kiiski (Finland) and Marco Costalba (Italy)] by [[Frank Quisinsky]], March 29, 2010
* [http://www.chessdom.com/stockfish-4-to-play-in-the-new-season-of-tcec/ Stockfish 4 to play in the new season of TCEC | Chessdom - Short interview with the Stockfish team], August 22, 2013 » [[TCEC]], [[TCEC Season 5]]
==Misc==
* [https://en.wikipedia.org/wiki/Stockfish Stockfish from Wikipedia]
* [https://en.wikipedia.org/wiki/Lofoten_Stockfish_Museum Lofoten Stockfish Museum from Wikipedia]
* [http://www.lofoten-info.no/nfmuseum/history/stockfsh.htm Stockfish] from [https://en.wikipedia.org/wiki/Norwegian_Fishing_Village_Museum Norsk Fiskeværsmuseum], [https://en.wikipedia.org/wiki/%C3%85,_Moskenes Å, Moskenes]
* [https://ruthhorowitz.wordpress.com/2012/05/29/postcards-from-the-lofoten-islands/ Postcards from the Lofoten Islands] from [https://ruthhorowitz.wordpress.com/ Giving Up The Ghost], May 29, 2012 » [[Stockfish]] and [[GullChess|Gulls]]
=References=
<references />
'''[[Engines|Up one Level]]'''
[[Categoty:Fish]]
[[Categoty:GPL]]
[[Categoty:Open Source]]
[[Categoty:UCI]]
[[FILE:stockfish-logo.png|border|right|thumb|link=https://stockfishchess.org/|
| Stockfish logo <ref>[https://stockfishchess.org/ Stockfish - Open Source Chess Engine]</ref> ]]
'''Stockfish''',<br/>
an [[UCI]] compatible [[:Categoty:Open Source|open source]] chess engine developed by [[Tord Romstad]], [[Marco Costalba]], [[Joona Kiiski]] and [[Gary Linscott]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=58779 Stockfish 7] by [[Joona Kiiski]], [[CCC]], January 02, 2016</ref>, licensed under the [[Free Software Foundation#GPL|GPL v3.0]]. Marco forked the project from version 2.1 of Tord's engine [[Glaurung]], first announced by Marco in November 8, 2008 <ref>[http://www.talkchess.com/forum/viewtopic.php?t=24675 Stockfish 1.0] by [[Marco Costalba]], [[CCC]], November 02, 2008</ref> , and in early 2009 Joona's [[Smaug]], a further Glaurung 2.2 derivative, was incorporated <ref>[http://www.talkchess.com/forum/viewtopic.php?t=26971&start=1 Re: Smaug: a new chess engine based on glaurung] by [[Marco Costalba]], [[CCC]], March 12, 2009</ref> . Starting out among the top twenty engines, Stockfish has quickly climbed in [[Playing Strength|strength]] to become the world strongest chess entity as of 2018 - at least concerning the [[AlphaZero]] hype <ref>[[David Silver]], [[Thomas Hubert]], [[Julian Schrittwieser]], [[Ioannis Antonoglou]], [[Matthew Lai]], [[Arthur Guez]], [[Marc Lanctot]], [[Laurent Sifre]], [[Dharshan Kumaran]], [[Thore Graepel]], [[Timothy Lillicrap]], [[Karen Simonyan]], [[Demis Hassabis]] ('''2017'''). ''Mastering Chess and Shogi by Self-Play with a General Reinforcement Learning Algorithm''. [https://arxiv.org/abs/1712.01815 arXiv:1712.01815]</ref>, public available chess entity. The name "Stockfish" reflects the ancestry of the engine. Tord is Norwegian and Marco Italian, and there is a long history of [https://en.wikipedia.org/wiki/Stockfish stockfish] trade from Norway to Italy (to Marco's home town of [https://en.wikipedia.org/wiki/Vicenza Vicenza], in fact).
Stockfish also referred another famous "little fish", the then strongest chess engine [[Rybka]].
=Science versus Commerce?=
There is a wide range of opinions about strong open source chess engines affecting commercial and competitive interests, as well as monetary interests from computer chess users, who obtain a top engine for free. The scientific and social value of strong open source programs is indisputable. The [https://en.wikipedia.org/wiki/Teamwork teamwork] effort to share ideas and knowledge to write one of the strongest programs, which everybody may follow and share to learn and play for free, is definitely a challenging and motivating task, gathering both admiration and enviousness. Obviously, professional programmers of commercial chess programs are not that enthusiastic about the development, and need to improve further and/or focus more on secondary features or other business concepts like on-line play and/or [[GUI|user interface]] issues rather than on pure playing strength.
Also many hobbyist chess programmers feel in antagonism as well, not only caused by Stockfish with its highly respected authors, and before by [[Fruit]] and slightly [[Crafty]], but from [[Ippolit]] and all its successors by pseudonymous authors and disputed origin. The implications on commercial and competitive computer chess are not quite clear, but presumably the decrease in number of participants of over the board [[Tournaments and Matches|tournaments]] will progress and [[Clones|clone]] suspicions may float like a [https://en.wikipedia.org/wiki/Damocles Sword of Damocles] over the scene, whether programmers took ideas too literally or not.
<span id="TestingFramework"></span><span id="Fishtest"></span>
=Fishtest=
The Stockfish Testing Framework dubbed '''Fishtest''' <ref>[https://github.com/glinscott/fishtest glinscott/fishtest · GitHub]</ref> is a web application written by [[Gary Linscott]] <ref>[http://stockfishchess.org/get-involved/ Get Involved - Stockfish - Powerful Open Source Chess Engine]</ref> <ref>[http://www.talkchess.com/forum/viewtopic.php?t=47885 Fishtest Distributed Testing Framework] by [[Marco Costalba]], [[CCC]], May 01, 2013</ref> and is based on a [https://en.wikipedia.org/wiki/SETI@home SETI@home] kind of [https://en.wikipedia.org/wiki/Volunteer_computing volunteer computing].
Fishtest is mainly written in [[Python]] under the ''Pyramid Application Development Framework'' <ref>[http://docs.pylonsproject.org/projects/pyramid/en/latest/ The Pyramid Web Framework — The Pyramid Web Framework v1.5]</ref>, and distributes games across different machines to reduce the test latency and increment throughput. Started in early 2013 with Stockfish 3.0, Fishtest has hundreds of contributors, as of June 2018, 1130 testers and 162 developers <ref>[http://tests.stockfishchess.org/users Stockfish Testing Framework - Users]</ref> active in testing ideas and tweaks <ref>[http://tests.stockfishchess.org/tests Stockfish Testing Framework]</ref>, to make Stockfish the strongest chess entity of the world <ref>[http://adamsccpages.blogspot.com/p/sf-framework-history.html Adam's Computer Chess Pages: Stockfish Progression] by [[Adam Hair]]</ref>.
<span id="EvaluationGuide"></span>
=Evaluation Guide=
Since April 2017 the interactive '''Stockfish Evaluation Guide''' is available to explore Stockfish's [[Evaluation|evaluation]] with a [[JavaScript]] implementation running in a [https://en.wikipedia.org/wiki/Web_browser browser] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=64025&start=27 Re: How far away are we from deep learning Stockfish, Komodo] by [[Gary Linscott|Gary]], [[CCC]], May 21, 2017</ref> . One may enter a [[Forsyth-Edwards Notation|FEN]] string of a [[Chess Position|position]], to get the resulting [[Score|score]] of the main evaluation term considering the [[Game Phases|game phases]] within its [[Tapered Eval|tapered evaluation]], and may navigate through the tree of subterms and features with its particular characteristics for the given position <ref>[https://hxim.github.io/Stockfish-Evaluation-Guide/ Stockfish Evaluation Guide]</ref> .
=Tournament Play=
Stockfish is top contender of the prestigious [[TCEC|Thoresen Chess Engines Competition (TCEC)]], reaching the superfinals since [[TCEC Season 4|season 4]], and clearly established its world number one status in winning recent TCECs, leaving its commercial rivals [[Komodo]] and [[Houdini]] behind.
<span id="Matches"></span>
=GM+Rybka vs. Stockfish=
On July 19, 2014, Stockfish 5 played a four game match versus [https://en.wikipedia.org/wiki/Daniel_Naroditsky Daniel Naroditsky] plus [[Rybka|Rybka 3]] (2008), 45 minutes plus 30-second increment. Stockfish won 3½ - ½ <ref>[http://www.chess.com/article/view/how-rybka-and-i-tried-to-beat-the-strongest-chess-computer-in-the-world Can a GM and Rybka beat Stockfish?] by GM [https://en.wikipedia.org/wiki/Daniel_Naroditsky Daniel Naroditsky], [https://en.wikipedia.org/wiki/Chess.com Chess.com], August 08, 2014</ref> <ref>[http://www.talkchess.com/forum/viewtopic.php?t=53228 GM and Rybka vs. Stockfish] by Robert Maddox, [[CCC]], August 09, 2014</ref> . A few weeks later the experiment continued with [https://en.wikipedia.org/wiki/Hikaru_Nakamura Hikaru Nakamura] in [https://en.wikipedia.org/wiki/Burlingame,_California Burlingame, California] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=53315 Nakamura vs Stockfish, public match 8/23] by Jesse L, [[CCC]], August 17, 2014</ref> . Supported two games by Rybka 3, Nakamura lost ½ - 1½, two games with pawn odds (Stockfish both Black without h- and b-pawn) ended ½ - 1½ in favour to Stockfish 5 as well. It played the latest development build compiled for [[Mac OS|OS X]] running on a 3 GHz 8-Core [[Macintosh|Mac Pro]] <ref>[http://www.chess.com/news/stockfish-outlasts-nakamura-3634 Stockfish Outlasts "Rybkamura"] by [http://www.chess.com/article/view/chesscom-player-profiles-fm-mikeklein FM Mike Klein], [https://en.wikipedia.org/wiki/Chess.com Chess.com], August 24, 2014</ref> .
=Selected Features=
<ref>based on the sources of Stockfish 6</ref>
==[[Board Representation]]==
* [[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>)
* [[Piece-Lists]]
==[[Search]]==
* [[Iterative Deepening]]
* [[Aspiration Windows]]
* [[Parallel Search]] using [[Thread|Threads]]
** [[Young Brothers Wait Concept|YBWC]] prior to Stockfish 7
** [[Lazy SMP]] since Stockfish 7, January 2016
* [[Principal Variation Search]]
* [[Transposition Table]]
** [[Shared Hash Table]]
** 10 [[Byte|Bytes]] per [[Transposition Table#Entry|Entry]], 3 Entries per [[Transposition Table#Bucket|Cluster]]
** [[Transposition Table#ReplacementStrategies|Depth-preferred Replacement Strategy]]
** No [[Node Types#PV|PV-Node]] probing
** [[Memory#Cache|Prefetch]]
* [[Move Ordering]]
** [[Countermove Heuristic]]
** [[History Heuristic#CMHist|Counter Moves History]] since Stockfish 7, January 2016 <ref>[http://www.talkchess.com/forum/viewtopic.php?t=58935&start=2 Re: Stockfish 7 progress] by Lucas Braesch, [[CCC]], January 17, 2016</ref>
** [[History Heuristic]]
** [[Internal Iterative Deepening]]
** [[Killer Heuristic]]
** [[MVV-LVA|MVV/LVA]]
** [[Static Exchange Evaluation|SEE]]
* [[Selectivity]]
** [[Extensions]]
*** [[Check Extensions]] if [[Static Exchange Evaluation|SEE]] >= 0
*** [[Singular Extensions#RestrictedSE|Restricted Singular Extensions]]
** [[Pruning]]
*** [[Futility Pruning]]
*** [[Futility Pruning#MoveCountBasedPruning|Move Count Based Pruning]]
*** [[Null Move Pruning]]
**** [[Depth Reduction R|Dynamic Depth Reduction]] based on [[Depth|depth]] and [[Score|value]]
**** [[Reverse Futility Pruning|Static Null Move Pruning]]
**** [[Null Move Pruning#ZugzwangVerification|Verification search]] at high depths
*** [[ProbCut]]
*** [[Static Exchange Evaluation|SEE Pruning]]
** [[Reductions]]
*** [[Late Move Reductions]]
*** [[Razoring]]
** [[Quiescence Search]]
==[[Evaluation]]==
<ref>See also [[Evaluation Philosophy]] and [http://www.talkchess.com/forum/viewtopic.php?topic_view=threads&p=135133&t=15504 The Art of Evaluation] by [[Tord Romstad]], [[CCC]], August 2, 2007</ref> <ref>[https://hxim.github.io/Stockfish-Evaluation-Guide/ Stockfish Evaluation Guide]</ref>
* [[Tapered Eval]]
* [[Score#Grain|Score Grain]]: ~1/256 of a [[Pawn Advantage, Win Percentage, and Elo|pawn unit]]
* [[Material]]
** [[Point Value|Point Values]]
*** [[Middlegame|Midgame]]: 198, 817, 836, 1270, 2521
*** [[Endgame]]: 258, 846, 857, 1278, 2558
** [[Bishop Pair]]
** [[Material Tables|Imbalance Tables]]
** [[Material Hash Table]]
* [[Piece-Square Tables]]
* [[Space]]
* [[Mobility]]
** [[Trapped Pieces]]
** [[Rook on Open File|Rooks on (Semi) Open Files]]
* [[Outposts]]
* [[Pawn Structure]]
** [[Pawn Hash Table]]
** [[Backward Pawn]]
** [[Doubled Pawn]]
** [[Isolated Pawn]]
** [[Duo Trio Quart (Bitboards)|Phalanx]]
** [[Passed Pawn]]
* [[King Safety]]
** [[King Safety#Attacking|Attacking King Zone]]
** [[King Safety#PawnShield|Pawn Shelter]]
** [[King Safety#PawnStorm|Pawn Storm]]
** [[King Safety#SquareControl|Square Control]]
* [[Evaluation Patterns]]
==Misc==
* [[Chess960]]
* [[Stockfish's Tuning Method]]
: [[SPSA]]
* [[Syzygy Bases]]
=Release Dates=
* 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
* 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
* 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
* 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
* 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
* Stockfish 3 : April 30, 2013
* Stockfish 4 : August 20, 2013
* Stockfish DD : November 29, 2013
* Stockfish 5 : May 31, 2014
* Stockfish 6 : January 27, 2015
* Stockfish 7 : January 02, 2016
* Stockfish 8 : November 01, 2016
* Stockfish 9 : February 01, 2018
<span id="ports"></span>
=Ports=
* [[asmFish]]
* [[CFish]]
* [[DroidFish]]
* [[Portfish]]
* [[Stockfish-js]] <ref>[https://github.com/exoticorn/stockfish-js exoticorn/stockfish-js · GitHub]</ref>
<span id="Derivatives"></span>
=Derivatives=
* [[Brainfish]]
* [[McBrain]]
* [[DON]]
* [[Sting]]
* [[SugaR]]
=See also=
* [[Evaluation Philosophy]]
* [[Various Classifications#Fish|Fish]]
* [[Various Classifications#Food|Food]]
* [[Glaurung]]
* [[LCZero]]
* [[Raspberry Turk]]
=Publications=
* [[Arno Nickel]] ('''2012'''). ''[http://www.edition-marco-shop.de/epages/64079634.sf/de_DE/?ObjectPath=/Shops/64079634/Categories/Schachgeschehen/Computerschach Die schöne neue Welt der Schachengines]''. [http://www.zeitschriftschach.de/ SCHACH] 2,3,5,6 2012, [http://www.edition-marco-shop.de/WebRoot/Store14/Shops/64079634/5177/F0A3/C389/D0DD/3A71/C0A8/2935/25F6/Die_schoene_neue_Welt_der_Schachengines.pdf pdf] (German) <ref>Part 1 covers [[Houdini]], [[Rybka]], [[Komodo]], [[Stockfish]], [[Critter]], [[Naum]], [[Chiron]] and [[Spike]]</ref>
* [[Oleg Arenz]] ('''2012'''). ''Monte Carlo Chess''. B.Sc. thesis, [[Darmstadt University of Technology]], advisor [[Johannes Fürnkranz]], [http://www.ke.tu-darmstadt.de/lehre/arbeiten/bachelor/2012/Arenz_Oleg.pdf pdf] » [[Monte-Carlo Tree Search]]
* [[Tamal T. Biswas]], [[Kenneth Wingate Regan|Kenneth W. Regan]] ('''2015'''). ''Quantifying Depth and Complexity of Thinking and Knowledge''. [http://www.icaart.org/EuropeanProjectSpace.aspx?y=2015 ICAART 2015], [http://www.cse.buffalo.edu/~regan/papers/pdf/BiReICAART15CR.pdf pdf]
* [[Tamal T. Biswas]], [[Kenneth Wingate Regan|Kenneth W. Regan]] ('''2015'''). ''Measuring Level-K Reasoning, Satisficing, and Human Error in Game-Play Data''. [[IEEE]] [http://www.icmla-conference.org/icmla15/ ICMLA 2015], [http://www.cse.buffalo.edu/~regan/papers/pdf/BiRe15_ICMLA2015.pdf pdf preprint]
* [[Shu Yokoyama]], [[Tomoyuki Kaneko]], [[Tetsuro Tanaka]] ('''2015'''). ''Parameter-Free Tree Style Pipeline in Asynchronous Parallel Game-Tree Search''. [[Advances in Computer Games 14]] , [http://www.graco.c.u-tokyo.ac.jp/~kaneko/papers/acg2015-yokoyama.pdf pdf] » [[Shu Yokoyama#PGPP|P-GPP]]
* [[Jean-Marc Alliot]] ('''2017'''). ''Who is the Master''? [[ICGA Journal#39_1|ICGA Journal, Vol. 39, No. 1]], [http://www.alliot.fr/CHESS/draft-icga-39-1.pdf draft as pdf] <ref>[http://www.alliot.fr/CHESS/ficga.html.en Who is the Master?] from [[Jean-Marc Alliot|Jean-Marc Alliot's]] [http://www.alliot.fr/fpro.html.en professional website]</ref>
=Videos=
* [[Daylen Yang#Video|How do modern chess engines work? | Video]], Talk by [[Daylen Yang]], [http://www.tngtech.com/tng-ueber-uns/bigtechday/big-techday-8.html TNG | Big Techday 8], June 12, 2015
* [[Tord Romstad#Video|Parallelism and Selectivity in Game Tree Search | Video]], Talk by [[Tord Romstad]], [http://www.tngtech.com/tng-ueber-uns/bigtechday/big-techday-8.html TNG | Big Techday 8], June 12, 2015
* [[Tord Romstad#Video|How Modern Chess Programs Work | Video]] by [[Tord Romstad]], [http://2017.flatmap.no/talks/romstad/ flatMap(Oslo)], May 02, 2017
=Forum Posts=
==2008 ...==
* [http://www.talkchess.com/forum/viewtopic.php?t=24675 Stockfish 1.0] by [[Marco Costalba]], [[CCC]], November 02, 2008
* [http://www.talkchess.com/forum/viewtopic.php?t=24771 Please drop Stockfish] by [[Marco Costalba]], [[CCC]], November 07, 2008
'''2009'''
* [http://wbec-ridderkerk.forumotion.com/wbec-ridderkerk-news-info-f1/stockfish-glaurung-t402.htm Re: Stockfish - Glaurung] by [[Tord Romstad]], [http://wbec-ridderkerk.forumotion.com/forum.htm WBEC-Ridderkerk forum], September 05, 2009
* [http://www.talkchess.com/forum/viewtopic.php?t=30051 Stockfish 1.5.1] by [[Marco Costalba]], [[CCC]], October 08, 2009
==2010 ...==
* [http://www.talkchess.com/forum/viewtopic.php?t=33677 Stockfish 1.7] by [[Marco Costalba]], [[CCC]], April 08, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=33705 Stockfish-1.7.0 Hyper-threading Detection] by [[Louis Zulli]], [[CCC]], April 09, 2010 » [[Thread]]
* [http://www.talkchess.com/forum/viewtopic.php?t=33779 stockfish fail high fail low] by [[Uri Blass]], [[CCC]], April 13, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=33813 MTD experiment with stockfish 1.7.1] by [[Vratko Polák]], [[CCC]], April 15, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=33842 about stockfish and logic] by [[Uri Blass]], [[CCC]], April 17, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=34159 Stockfish - material balance/imbalance evaluation] by [[Ralph Stoesser]], [[CCC]], May 05, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=34286 Qsearch of Stockfish 1.7.1] by [[Ferdinand Mosca]], [[CCC]], May 13, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=34670 Stockfish do_move + undo_move] by [[Matthew Purland]], [[CCC]], June 02, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=34909 static null move pruning is stockfish] by [[Tom King]], [[CCC]], June 13, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=35186 Stockfish - single evasion extensions] by [[Ralph Stoesser]], [[CCC]], June 27, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=35246 Stockfish 1.8 JA available] by [[Jim Ablett]], [[CCC]], July 02, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=35284 stockfish 1.8 - Eval hash gone?] by [[Edward Yu]], [[CCC]], July 04, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=35419 Stockfish Singular Extension, does it make sense?] by [[Volker Böhm]], [[CCC]], July 08, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=35355 Stockfish 1.8 tweaks] by [[Vratko Polák]], [[CCC]], July 09, 2010
* [http://www.open-chess.org/viewtopic.php?f=3&t=423 Stockfish question] by [[Ed Schroder|Rebel]], [[Computer Chess Forums|OpenChess Programming Forum]], July 10, 2010
* [http://www.open-chess.org/viewtopic.php?f=5&t=434 Taken from CCC (Stockfish & mainlines)] by [[Ed Schroder|Rebel]], [[Computer Chess Forums|OpenChess Programming Forum]], July 12, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=35459 backward pawns in Stockfish] by [[Marek Kwiatkowski]], [[CCC]], July 16, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=35455 Questions for the Stockfish team] by [[Michael Sherwin]], [[CCC]], July 16, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=35496 Stockfish 1.8 - eval cache] by [[Ralph Stoesser]], [[CCC]], July 18, 2010 » [[Evaluation Hash Table]]
* [http://www.talkchess.com/forum/viewtopic.php?t=35543 Stockfish null move pre-condition] by [[Rein Halbersma]], [[CCC]], July 22, 2010 » [[Null Move Pruning]]
* [http://www.talkchess.com/forum/viewtopic.php?t=35901 Stockfish for 39 dollars] by [[Matthias Gemuh]], [[CCC]], August 26, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=36239 Stockfish 1.9 JA update available] by [[Jim Ablett]], [[CCC]], October 02, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=36307 mobility evaluation of stockfish] by [[Uri Blass]], [[CCC]], October 09, 2010
'''2011'''
* [http://www.talkchess.com/forum/viewtopic.php?t=37399 Stockfish 2.0 Available] by [[Jim Ablett]], [[CCC]], January 01, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=37450 Stockfish 2.0.0 tests] by [[Harun Taner]], [[CCC]], January 04, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=37468 Stockfish "Use Sleeping Threads" Test] by [[Louis Zulli]], [[CCC]], January 05, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=37573 StockFish engine] by [[Andriy Dzyben]], [[CCC]], January 11, 2011
* [http://www.open-chess.org/viewtopic.php?f=5&t=1042 Designing an analysis friendly Stockfish?] by Uly, [[Computer Chess Forums|Open Chess Programming Forum]], January 28, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=38198 Why are the Ippo derivative stronger than Stockfish?] by [[Larry Kaufman]], [[CCC]], 24 February, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=38740 Transposition Table updates in Stockfish] by [[Onno Garms]], [[CCC]], April 12, 2011 » [[Transposition Table]]
* [http://www.talkchess.com/forum/viewtopic.php?t=38760 Stockfish random generator (rkiss.h)] by [[Martin Sedlak]], [[CCC]], Apr 15, 2011 » [[Bob Jenkins]]
* [http://www.talkchess.com/forum/viewtopic.php?t=39169 futility pruning in stockfish] by [[Engin Üstün]], [[CCC]], May 25, 2011 » [[Futility Pruning]]
* [http://www.talkchess.com/forum/viewtopic.php?t=39214 Stockfish clones in the AppStore: it's becoming a plague...] by [[Julien Marcel]], [[CCC]], May 28, 2011 » [[Clones]]
* [http://www.talkchess.com/forum/viewtopic.php?t=39346 Root node search in Stockfish] by [[Onno Garms]], [[CCC]], June 12, 2011 » [[Move Ordering]], [[Root]]
* [http://www.talkchess.com/forum/viewtopic.php?t=40562 Grandmaster prefers Stockfish evals] by [[Albert Silver]], [[CCC]], September 29, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=40610 Stockfish on github] by [[Marco Costalba]], [[CCC]], October 02, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=40662 Stockfish's tuning method] by [[Joona Kiiski]], [[CCC]], October 07, 2011 » [[Stockfish's Tuning Method]]
'''2012'''
* [http://www.talkchess.com/forum/viewtopic.php?t=41732 StockFish LS with LimitStrength feature] by [[Alexander Schmidt]], [[CCC]], January 01, 2012
* [http://www.talkchess.com/forum/viewtopic.php?t=41916 Stockfish Code ( Piece Value's)] by Nolan Denson, [[CCC]], January 10, 2012 » [[Point Value]]
* [http://www.talkchess.com/forum/viewtopic.php?t=41917 Stockfish hash implementation] by [[Jon Dart]], [[CCC]], January 10, 2012 » [[Transposition Table]]
* [http://www.talkchess.com/forum/viewtopic.php?t=41999 Stockfish 2.2.2 JA update available] by [[Jim Ablett]], [[CCC]], January 14, 2012
* [http://www.talkchess.com/forum/viewtopic.php?p=454327 CLOP on Stockfish] by [[Gary Linscott|Gary]], [[CCC]], March 10, 2012 » [[CLOP]]
* [http://www.talkchess.com/forum/viewtopic.php?t=42841 optimal aspiration window for stockfish question] by [[Uri Blass]], [[CCC]], March 12, 2012 » [[Aspiration Windows]]
* [http://www.talkchess.com/forum/viewtopic.php?t=44901 Raspberry Pi / Stockfish dedicated chess computer/board] by [[Jean-Francois Romang]], [[CCC]], August 26, 2012 » [[Raspberry Pi]], [[Dedicated Chess Computers]]
* [http://www.talkchess.com/forum/viewtopic.php?t=45163 Stockfish 2.3 update available] by [[Jim Ablett]], [[CCC]], September 15, 2012
'''2013'''
* [http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=26392 10 Lessons to be Learned from todays Top Engines] by Josef, [[Computer Chess Forums|Rybka Forum]], January 03, 2013 » [[Houdini]], [[Komodo]]
* [http://www.talkchess.com/forum/viewtopic.php?t=47881 Stockfish 3 Official JA Windows/Linux builds available] by [[Jim Ablett]], [[CCC]], April 30, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=47885 Fishtest Distributed Testing Framework] by [[Marco Costalba]], [[CCC]], May 01, 2013 » [[Stockfish#Fishtest|Fishtest]]
* [http://www.talkchess.com/forum/viewtopic.php?t=47953&start=10 Re: History pruning / move ordering question] by [[Joona Kiiski]], [[CCC]], May 12, 2013 » [[Countermove Heuristic]]
* [http://open-chess.org/viewtopic.php?f=7&t=2322 Stockfish 3 PA_GTB] by [[Jeremy Bernstein]], [[Computer Chess Forums|OpenChess Forum]], May 15, 2013
* [http://www.talkchess.com/forum/viewtopic.php?p=518426 Probcut] by [[Gary Linscott|Gary]], [[CCC]], May 24, 2013 » [[ProbCut]]
* [http://www.talkchess.com/forum/viewtopic.php?t=48149 Stockfish bug] by [[Steven Atkinson]], [[CCC]], May 30, 2013 » [[Repetitions]]
* [http://www.talkchess.com/forum/viewtopic.php?t=48602 The Ultimate Stockfish!] by [[Michael Scheidl|Mike Scheidl]], [[CCC]], July 09, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=48612 use sleeping threads] by [[Don Dailey]], [[CCC]], July 10, 2013 » [[Parallel Search]], [[Thread]]
* [http://www.talkchess.com/forum/viewtopic.php?t=49035 Stockfish 4] by [[Marco Costalba]], [[CCC]], August 20, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=49283 18 days from SF4 release and about ~30+ ELO gain!] by Alexandre Meirelles Souza, [[CCC]], September 08, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=49375 How much of Stockfish code is still from Tord Romstad?] by [[Jouni Uski]], [[CCC]], September 16, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=49439 Syzygy tablebases, work in Stockfish?] by [[Jose Maria Velasco|Jose Mº Velasco]], [[CCC]], September 23, 2013 » [[Syzygy Bases]]
* [http://www.talkchess.com/forum/viewtopic.php?t=49854 Stockfish search] by [[Harm Geert Muller]], [[CCC]], October 28, 2013 » [[Principal variation]]
* [http://hiarcs.net/forums/viewtopic.php?t=6425 Some food for thought] by [[The Spacious Mind|Spacious Mind]], [[Computer Chess Forums|Hiarcs Forum]], November 11, 2013 » [[Stockfish]] vs. [[ChessMachine|Tasc CM32 512K]] [[The King|The King 2.2]]
* [http://www.talkchess.com/forum/viewtopic.php?t=50083 Stockfish scaling] by [[Ed Schroder|Ed Schröder]], [[CCC]], November 15, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=50220 Stockfish depth vs. others; challenge] by [[Larry Kaufman]], [[CCC]], November 24, 2013 » [[Depth]]
* [http://www.talkchess.com/forum/viewtopic.php?t=50275 Stockfish DD: a new official release] by [[Marco Costalba]], [[CCC]], November 29, 2013 » [[TCEC Season 5]], dedicated to [[Don Dailey]]
* [http://www.talkchess.com/forum/viewtopic.php?t=50296 Stockfish Syzygy: how to interpret mates?] by [[Jouni Uski]], [[CCC]], December 01, 2013 » [[Syzygy Bases]], [[Score#MateScores|Mate Scores]]
* [http://www.talkchess.com/forum/viewtopic.php?t=50587 Is SF DD greater efficiency would be null move pruning?] by Jonathan Lee, [[CCC]], December 22, 2013 » [[Null Move Pruning]]
'''2014'''
* [http://www.talkchess.com/forum/viewtopic.php?t=50742 Help me to test an idea for Stockfish] by Robert Tournevisse, [[CCC]], January 03, 2014 » [[Piece-Square Tables]], [[Tapered Eval]]
* [http://www.talkchess.com/forum/viewtopic.php?t=50989 Stockfish seems definitely the strongest engine] by [[Kai Laskos]], [[CCC]], January 21, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=50992 Stockfish Mac app] by [[Daylen Yang]], [[CCC]], January 22, 2014 » [[Macintosh]]
* [http://www.talkchess.com/forum/viewtopic.php?t=51096 Stockfish goes EGBB] by [[Daniel Shawul]], [[CCC]], January 29, 2014 » [[Scorpio Bitbases]]
* [http://www.talkchess.com/forum/viewtopic.php?t=51129 fixing the null move search "bug"] by [[Uri Blass]], [[CCC]], February 01, 2014 » [[Null Move Pruning]]
* [http://www.talkchess.com/forum/viewtopic.php?t=51291 Disabling Null Move Pruning in Stockfish] by [[Louis Zulli]], [[CCC]], February 15, 2014 » [[Null Move Pruning]]
* [http://www.talkchess.com/forum/viewtopic.php?t=51655 Threads-Test] by [[Andreas Strangmüller]], [[CCC]], March 18, 2014 » [[Thread]], [[Parallel Search]]
* [http://www.talkchess.com/forum/viewtopic.php?t=51879 Stockfish haswell optimized build] by [[Jean-Francois Romang]], [[CCC]], April 06, 2014 » [[BMI2]]
* [http://www.talkchess.com/forum/viewtopic.php?t=52117&start=1 Huge simplification] by [[Lyudmil Tsvetkov]], [[CCC]], April 25, 2014 » [[Pawn chain]]
* [http://www.talkchess.com/forum/viewtopic.php?t=52204 Stockfish zero evals] by [[Larry Kaufman]], [[CCC]], May 02, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=52219 Threads-Test - SF, Zappa, Komodo - 1 vs. 2, 4, 8, 16 Threads] by [[Andreas Strangmüller]], [[CCC]], May 04, 2014 » [[Thread]], [[Stockfish]], [[Zappa]], [[Komodo]]
* [http://www.talkchess.com/forum/viewtopic.php?t=52231 investigating why stockfish is strong idea] by [[Uri Blass]], [[CCC]], May 05, 2014
* [http://www.talkchess.com/forum/viewtopic.php?p=570955 Threads factor: Komodo, Houdini, Stockfish and Zappa] by [[Andreas Strangmüller]], [[CCC]], May 17, 2014 » [[Komodo]], [[Houdini]], [[Stockfish]], [[Zappa]]
* [https://groups.google.com/d/msg/fishcooking/WNrxeXAJ6VI/ZkCnRv4I_qEJ Goodbye CLOP, hello SPSA] by [[Gary Linscott]], [[Computer Chess Forums|FishCooking]], May 17, 2014 » [[CLOP]], [[SPSA]]
* [http://www.talkchess.com/forum/viewtopic.php?t=52487 Stockfish 5] by [[Marco Costalba]], [[CCC]], May 31, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=52781 Stockfish Status Report] by [[Louis Zulli]], [[CCC]], June 27, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=53228 GM and Rybka vs. Stockfish] by Robert Maddox, [[CCC]], August 09, 2014 » [[Stockfish#Matches|GM+Rybka vs. Stockfish]]
* [http://www.talkchess.com/forum/viewtopic.php?t=53315 Nakamura vs Stockfish, public match 8/23] by Jesse L, [[CCC]], August 17, 2014
* [https://chesscomputer.tumblr.com/post/98632536555/using-the-stockfish-position-evaluation-score-to/embed Using the Stockfish position evaluation score to predict victory probability] by unavoidablegrain, [https://en.wikipedia.org/wiki/Tumblr Tumblr], September 28, 2014 » [[Pawn Advantage, Win Percentage, and Elo]]
* [http://www.talkchess.com/forum/viewtopic.php?t=53995 Threads test incl. Stockfish 5 and Komodo 8] by [[Andreas Strangmüller]], [[CCC]], October 09, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=54009 Threads test - Stockfish 5 against Komodo 8] by [[Andreas Strangmüller]], [[CCC]], October 10, 2014 » [[Thread]], [[Parallel Search]], [[Stockfish]], [[Komodo]]
* [http://www.talkchess.com/forum/viewtopic.php?t=54750 Stockfish and accurate PV] by [[Matthew Lai]], [[CCC]], December 25, 2014 » [[Principal variation]]
* [http://www.talkchess.com/forum/viewtopic.php?t=54798 Stockfish 32-bit and hardware instructions on MSVC++] by [[Syed Fahad]], [[CCC]], December 30, 2014 » [[BitScan]], [[Population Count]]
==2015 ...==
* [http://www.talkchess.com/forum/viewtopic.php?t=54891 Stockfish in Lozza UIs] by [[Colin Jenkins]], [[CCC]], January 07, 2015 » [[Lozza]], [[Stockfish-js]] <ref>[https://github.com/exoticorn/stockfish-js exoticorn/stockfish-js · GitHub]</ref>
* [http://www.talkchess.com/forum/viewtopic.php?t=55122 SF6 has been released] by [[Joona Kiiski]], [[CCC]], January 27, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55167 Stockfish 6 is impressive in Behting study] by [[Jouni Uski]], [[CCC]], January 31, 2015 » [[Behting Study]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55352 Stockfish with 16 threads - big news?] by [[Louis Zulli]], [[CCC]], February 15, 2015 » [[Thread]]
: [http://www.talkchess.com/forum/viewtopic.php?t=55368 Explanation for non-expert?] by [[Louis Zulli]], [[CCC]], February 16, 2015 » [[Parallel Search]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55402 Stockfish still scales poorly?] by [[Louis Zulli]], [[CCC]], February 20, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55409 Measuring SF idle time] by [[Louis Zulli]], [[CCC]], February 21, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55494 Better NPS scaling for Stockfish] by [[Louis Zulli]], [[CCC]], February 27, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55510 Stockfish Questions] by [[Syed Fahad]], [[CCC]], February 28, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55536 Best Stockfish NPS scaling yet] by [[Louis Zulli]], [[CCC]], March 02, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55623 Stockfish contempt factor] by [[Kai Laskos]], [[CCC]], March 10, 2015 » [[Contempt Factor]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55792 Improving SF passer code] by [[Lyudmil Tsvetkov]], [[CCC]], March 26, 2015 » [[Connected Passed Pawns]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55846 Problem with SF6 and Syzygy TB] by Forrest Hoch, [[CCC]], April 01, 2015 » [[Syzygy Bases]]
* [http://www.talkchess.com/forum/viewtopic.php?t=56019 Empirical results with Lazy SMP, YBWC, DTS] by [[Kai Laskos]], [[CCC]], April 16, 2015 » [[Lazy SMP]], [[Young Brothers Wait Concept|YBWC]], [[Dynamic Tree Splitting|DTS]]
* [http://www.talkchess.com/forum/viewtopic.php?t=56543 The effective speedup from 1 to 8 cpus for SF and Komodo] by [[Adam Hair]], [[CCC]], May 31, 2015 » [[Parallel Search]], [[Komodo]]
* [http://www.talkchess.com/forum/viewtopic.php?t=58056 New Stockfish with Lazy_SMP, but what about the TC bug ?] by [[Ernest Bonnem]], [[CCC]], October 26, 2015 » [[Parallel Search]], [[TCEC Season 8]]
* [https://goo.gl/QLcPAF Binary for TCEC superfinal] by Kiran Panditrao, [[Computer Chess Forums|FishCooking]], October 30, 2015 » [[TCEC Season 8]]
* [http://www.talkchess.com/forum/viewtopic.php?t=58103 SF binaries for TCEC superfinal] by [[Marco Costalba]], [[CCC]], October 31, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=58210 Stockfish dev 091115 for ANDROID] by Nathanael Russell, [[CCC]], November 09, 2015 » [[Android]]
* [http://www.talkchess.com/forum/viewtopic.php?t=58236 Stockfish now benefits from hyperthreading] by [[Dmitri Gusev]], [[CCC]], November 12, 2015 » [[Thread]]
* [http://www.talkchess.com/forum/viewtopic.php?t=58703 Stockfish 7 beta 1] by [[Joona Kiiski]], [[CCC]], December 27, 2015
* [http://www.open-chess.org/viewtopic.php?f=5&t=2942 Another GHI example in SF (maybe)] by [[Mark Watkins|BB+]], [[Computer Chess Forums|OpenChess Forum]], December 30, 2015 » [[Graph History Interaction]]
'''2016'''
* [http://www.talkchess.com/forum/viewtopic.php?t=58779 Stockfish 7] by [[Joona Kiiski]], [[CCC]], January 02, 2016
* [http://www.talkchess.com/forum/viewtopic.php?t=58887 Threads test incl. Stockfish 7] by [[Andreas Strangmüller]], [[CCC]], January 11, 2016 » [[Thread]], [[Parallel Search]]
* [http://www.talkchess.com/forum/viewtopic.php?t=58935 Stockfish 7 progress] by Carl Lumma, [[CCC]], January 16, 2016
* [http://www.talkchess.com/forum/viewtopic.php?t=58990 Oddity around depths 7-8 with Stockfish 6 & 7] by [[Kenneth Wingate Regan|Ken Regan]], [[CCC]], January 21, 2016
* [http://www.talkchess.com/forum/viewtopic.php?t=59407 Stockfish 7 and partial 6 piece syzygy problem?] by [[Jouni Uski]], [[CCC]], March 01, 2016
: [http://www.talkchess.com/forum/viewtopic.php?t=59407&start=12 Re: Stockfish 7 and partial 6 piece syzygy problem?] by [[Marco Costalba]], [[CCC]], September 01, 2016
* [http://www.talkchess.com/forum/viewtopic.php?t=59543 Computer Chess Progress: Stockfish 7 vs Ruffian 1.0.5] by [[Martin Fierz]], [[CCC]], March 17, 2016 » [[Ruffian]]
* [http://www.talkchess.com/forum/viewtopic.php?t=60312 Natural TB] by [[Marco Costalba]], [[CCC]], May 29, 2016 » [[Syzygy Bases]]
* [http://www.talkchess.com/forum/viewtopic.php?t=61250 Stockfish eval output] by [[Erin Dame]], [[CCC]], August 27, 2016 » [[Wrong color Bishop and rook pawn]]
* [http://www.talkchess.com/forum/viewtopic.php?t=61373&start=2 Re: Beginner's guide to graphical profiling] by [[Marco Costalba]], [[CCC]], September 10, 2016 » [[Profiling]]
* [http://www.talkchess.com/forum/viewtopic.php?t=61444 ELO inflation ha ha ha] by [[Henk van den Belt]], [[CCC]], September 16, 2016 » [[Delphil]], [[Match Statistics]], [[Playing Strength]], [[TCEC Season 9]] <ref>[http://tcec.chessdom.com/archive.php?se=9&rapid&ga=163 Delphil 3.3b2 (2334) - Stockfish 030916 (3228), TCEC Season 9 - Rapid, Round 11], September 16, 2016</ref>
* [http://www.talkchess.com/forum/viewtopic.php?t=61601 Stockfish underpromotes much more often than Komodo] by [[Kai Laskos]], [[CCC]], October 05, 2016 » [[Komodo]], [[Match Statistics]], [[Promotions]]
* [http://www.talkchess.com/forum/viewtopic.php?t=61850 couple of questions about stockfish code ?] by [[Mahmoud Uthman]], [[CCC]], October 26, 2016 » [[SIMD and SWAR Techniques]], [[Tapered Eval]]
* [https://groups.google.com/d/msg/fishcooking/LCoojE9O5jU/h6xgvg2EBgAJ Stockfish 8] by [[Marco Costalba]], [[Computer Chess Forums|FishCooking]], November 01, 2016
* [http://www.talkchess.com/forum/viewtopic.php?t=61924 Stockfish 8 official] by [[Marco Costalba]], [[CCC]], November 01, 2016
* [https://groups.google.com/d/msg/fishcooking/7hHC075ZnnM/IaITCiLaBwAJ NUMA test compilation] by Joachim Müller, [[Computer Chess Forums|FishCooking]], November 05, 2016 » [[NUMA]]
* [http://www.talkchess.com/forum/viewtopic.php?t=62146 Stockfish 8 - Double time control vs. 2 threads] by [[Andreas Strangmüller]], [[CCC]], November 15, 2016 » [[Match Statistics#DoublingTC|Doubling TC]], [[Depth#DiminishingReturns|Diminishing Returns]], [[Playing Strength]], [[Lazy SMP]]
* [http://www.open-chess.org/viewtopic.php?f=3&t=3044 Stockfish benchmark data] by [[Adam Hair]], [[Computer Chess Forums|OpenChess Forum]], November 27, 2016
* [https://groups.google.com/d/msg/fishcooking/M2bkzC3MuFQ/N3pHK4DcAgAJ The new chess rules (5-fold repetition and 75-move draw)] by [[Lyudmil Antonov]], [[Computer Chess Forums|FishCooking]], November 29, 2016 » [[Repetitions]], [[Fifty-move Rule]]
* [http://www.talkchess.com/forum/viewtopic.php?t=62452 Scoutfish: powerful chess query tool] by [[Marco Costalba]], [[CCC]], December 11, 2016 » [[Databases]], [[Portable Game Notation]], [[Scoutfish]]
'''2017'''
* [http://www.talkchess.com/forum/viewtopic.php?t=62822 SF Progression since Fishtest inception] by [[Adam Hair]], [[CCC]], January 14, 2017 » [[Stockfish#Fishtest|Fishtest]]
* [http://www.talkchess.com/forum/viewtopic.php?t=54697&start=50 Re: Chessprogams with the most chessknowing] by [[Marco Costalba]], [[CCC]], February 19, 2017 » [[Knowledge#SearchVersusEvaluation|Search versus Evaluation]]
* [http://www.talkchess.com/forum/viewtopic.php?t=63903 Symmetric multiprocessing (SMP) scaling - SF8 and K10.4] by [[Andreas Strangmüller]], [[CCC]], May 05, 2017 » [[Lazy SMP]], [[Komodo]]
* [http://www.talkchess.com/forum/viewtopic.php?t=63967 Symmetric multiprocessing (SMP) scaling - SF8 Contempt=10] by [[Andreas Strangmüller]], [[CCC]], May 13, 2017 » [[SMP]], [[Contempt Factor]]
* [http://www.talkchess.com/forum/viewtopic.php?t=64720 Stockfish version with hash saving capability] by [[Daniel José Queraltó]], [[CCC]], July 25, 2017 » [[Persistent Hash Table]]
* [http://www.talkchess.com/forum/viewtopic.php?t=60312&start=240 Natural TB (take 2)] by [[Marco Costalba]], [[CCC]], August 22, 2017 » [[Syzygy Bases]]
* [http://www.talkchess.com/forum/viewtopic.php?t=64972 Approximating Stockfish's Evaluation by PSQTs] by [[Thomas Dybdahl Ahle]], [[CCC]], August 23, 2017 » [[Automated Tuning#Regression|Regression]], [[Piece-Square Tables]]
* [http://www.talkchess.com/forum/viewtopic.php?t=65017 Stockfish no progress in 2month and half , why ?] by Jean Baptiste, [[CCC]], August 28, 2017
* [http://www.talkchess.com/forum/viewtopic.php?t=65216 Stockfish testing at STC and LTC: one question] by [[Jouni Uski]], [[CCC]], September 19, 2017
* [http://www.talkchess.com/forum/viewtopic.php?t=65288 Scaling from FGRL results with top 3 engines] by [[Kai Laskos]], [[CCC]], September 26, 2017 » [[FGRL]], [[Houdini]], [[Komodo]]
* [http://www.talkchess.com/forum/viewtopic.php?t=65919 AlphaZero vs Stockfish] by Bigler, [[CCC]], December 06, 2017 » [[AlphaZero#StockfishMatch|AlphaZero vs. Stockfish]]
* [https://groups.google.com/forum/#!topic/fishcooking/AE4EgWQ20dY A branch to test the Monte Carlo algorithm in Stockfish] by Stephane Nicolet, [[Computer Chess Forums|FishCooking]], December 06, 2017 » [[Monte-Carlo Tree Search]], [[AlphaZero]]
* [http://www.talkchess.com/forum/viewtopic.php?t=65934 Reactions about AlphaZero from top GMs...] by [[Norman Schmidt]], [[CCC]], December 08, 2017 » [[AlphaZero#Reactions|AlphaZero: Reactions From Top GMs, Stockfish Author]], [[Tord Romstad]]
* [https://groups.google.com/d/msg/fishcooking/rMCfc8zMerc/F01WuNtDCgAJ MCTS wrapper for StockFish] by [[Jonathan Baxter]], [[Computer Chess Forums|FishCooking]], December 19, 2017 » [[Monte-Carlo Tree Search]]
''''''==
* [http://www.talkchess.com/forum/viewtopic.php?t=66340 Stockfish 8 - Initial position until depth 59] by [[Andreas Strangmüller]], [[CCC]], January 16, 2018 » [[Initial Position]]
* [http://www.talkchess.com/forum/viewtopic.php?t=66444 New Stockfish contempt] by [[Jouni Uski]], [[CCC]], January 29, 2018 » [[Contempt Factor]]
* [http://www.talkchess.com/forum/viewtopic.php?t=66470 Stockfish 9] by [[Marco Costalba]], [[CCC]], February 01, 2018
* [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]]
=External Links=
==Chess engine==
* [https://stockfishchess.org/ Stockfish - Open Source Chess Engine]
* [https://stockfishchess.org/get-involved/ Get Involved - Stockfish - Powerful Open Source Chess Engine]
: [http://tests.stockfishchess.org/tests Stockfish Testing Framework] » [[Stockfish#Fishtest|Fishtest]]
: [https://hxim.github.io/Stockfish-Evaluation-Guide/ Stockfish Evaluation Guide] » [[Stockfish#EvaluationGuide|Stockfish Evaluation Guide]]
: [https://groups.google.com/forum/#!forum/fishcooking FishCooking - Google Groups] a discussion group for developers and testers of [[Stockfish]] chess engine
* <span id="Support"></span>[http://support.stockfishchess.org/home Welcome - Stockfish Support]
* [https://github.com/official-stockfish/Stockfish official-stockfish/Stockfish · GitHub]
* [https://github.com/zamar zamar · GitHub] by [[Joona Kiiski]]
: [https://github.com/zamar/spsa SPSA Tuner for Stockfish Chess Engine] » [[SPSA]]
* [http://abrok.eu/stockfish/ Stockfish Development Versions] hosted by [[Roman Korba]]
* [https://stockfishchess.de/ Stockfish Development Versions for macOS]
* [http://blog.stockfishchess.org/ Stockfish Blog]
* [http://twitter.com/stockfishchess stockfishchess] on [https://en.wikipedia.org/wiki/Twitter Twitter]
* [https://en.wikipedia.org/wiki/Stockfish_%28chess%29 Stockfish (chess) from Wikipedia]
* [http://www.chess.fortherapy.co.uk/ Arduino & Raspberry PI Chess Computer] running [[Stockfish]] on [[Raspberry Pi]], by [[Max Dobres]] » [[Arduino]], [[Sensory Board]]
* [http://tech.mit.edu/V133/N62/chess.html One chess champion per laptop] by [http://www.mit.edu/~roberto/ Roberto Perez-Franco], [[Massachusetts Institute of Technology|MIT's]] [https://en.wikipedia.org/wiki/The_Tech_%28newspaper%29 The Tech], January 15, 2014 » [[TCEC Season 5]]
* [http://en.chessbase.com/post/john-hartmann-and-then-there-were-two And then there were two] by [http://en.chessbase.com/author/john-hartmann John Hartmann], [[ChessBase|ChessBase News]], June 09, 2015 » [[Komodo]], [[Stockfish]]
* [https://rjlipton.wordpress.com/2015/10/06/depth-of-satisficing/ Depth of Satisficing] by [[Kenneth Wingate Regan|Ken Regan]], [https://rjlipton.wordpress.com/ Gödel's Lost Letter and P=NP], October 06, 2015 » [[Depth]], [[Match Statistics]], [[Pawn Advantage, Win Percentage, and ELO]], [[Stockfish]], [[Komodo]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=57890 Regan's latest: Depth of Satisficing] by Carl Lumma, [[CCC]], October 09, 2015</ref>
* [https://rjlipton.wordpress.com/2016/01/21/a-chess-firewall-at-zero/ A Chess Firewall at Zero?] by [[Kenneth Wingate Regan|Ken Regan]], [https://rjlipton.wordpress.com/ Gödel's Lost Letter and P=NP], January 21, 2016
* [http://adamsccpages.blogspot.com/p/sf-framework-history.html Adam's Computer Chess Pages: Stockfish Progression] by [[Adam Hair]] » [[Stockfish#Fishtest|Fishtest]]
==Rating Lists==
* [http://www.computerchess.org.uk/ccrl/4040/cgi/compare_engines.cgi?family=Stockfish&print=Rating+list&print=Results+table&print=LOS+table&print=Ponder+hit+table&print=Eval+difference+table&print=Comopp+gamenum+table&print=Overlap+table&print=Score+with+common+opponents Stockfish] from [[CCRL|CCRL 40/40]]
* [http://computerchess.org.uk/ccrl/404/cgi/engine_details.cgi?print=Details&each_game=1&eng=Stockfish%205%2064-bit%204CPU#Stockfish_5_64-bit_4CPU Stockfish 5 64-bit 4CPU] in [[CCRL|CCRL 40/4]]
==Matches==
* [http://www.chess.com/article/view/how-rybka-and-i-tried-to-beat-the-strongest-chess-computer-in-the-world Can a GM and Rybka beat Stockfish?] by GM [https://en.wikipedia.org/wiki/Daniel_Naroditsky Daniel Naroditsky], [https://en.wikipedia.org/wiki/Chess.com Chess.com], August 08, 2014 » [[Stockfish#Matches|GM+Rybka vs. Stockfish]]
* [http://www.chess.com/news/stockfish-outlasts-nakamura-3634 Stockfish Outlasts "Rybkamura"] by [http://www.chess.com/article/view/chesscom-player-profiles-fm-mikeklein FM Mike Klein], [https://en.wikipedia.org/wiki/Chess.com Chess.com], August 24, 2014
* [https://www.chess.com/news/view/alphazero-reactions-from-top-gms-stockfish-author AlphaZero: Reactions From Top GMs, Stockfish Author] by [http://www.chessvibes.com/?q=peterdoggers Peter Doggers], [https://en.wikipedia.org/wiki/Chess.com Chess.com], December 08, 2017 » [[AlphaZero#StockfishMatch|AlphaZero vs. Stockfish]]
==Interviews==
* [http://www.schach-welt.de/schach/computerschach/interviews/romstad-kiiski-costalba-eng Computerschach, Interview with Tord Romstad (Norway), Joona Kiiski (Finland) and Marco Costalba (Italy)] by [[Frank Quisinsky]], March 29, 2010
* [http://www.chessdom.com/stockfish-4-to-play-in-the-new-season-of-tcec/ Stockfish 4 to play in the new season of TCEC | Chessdom - Short interview with the Stockfish team], August 22, 2013 » [[TCEC]], [[TCEC Season 5]]
==Misc==
* [https://en.wikipedia.org/wiki/Stockfish Stockfish from Wikipedia]
* [https://en.wikipedia.org/wiki/Lofoten_Stockfish_Museum Lofoten Stockfish Museum from Wikipedia]
* [http://www.lofoten-info.no/nfmuseum/history/stockfsh.htm Stockfish] from [https://en.wikipedia.org/wiki/Norwegian_Fishing_Village_Museum Norsk Fiskeværsmuseum], [https://en.wikipedia.org/wiki/%C3%85,_Moskenes Å, Moskenes]
* [https://ruthhorowitz.wordpress.com/2012/05/29/postcards-from-the-lofoten-islands/ Postcards from the Lofoten Islands] from [https://ruthhorowitz.wordpress.com/ Giving Up The Ghost], May 29, 2012 » [[Stockfish]] and [[GullChess|Gulls]]
=References=
<references />
'''[[Engines|Up one Level]]'''
[[Categoty:Fish]]
[[Categoty:GPL]]
[[Categoty:Open Source]]
[[Categoty:UCI]]
