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TCEC Season 21

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'''TCEC Season 21''',<br/>
the Top Chess Engine Championship (TCEC) Season 21 from May 10until August 07, 2021.[[Stockfish|Stockfish 14_202107131735]] won the [[#Superfinal|Superfinal]] versus [[Leela Chess Zero|LCZero 0.28-dev+_69626]].  {| class="wikitable" style="margin: auto;"! [[#Superfinal|Superfinal]] :| [[Stockfish|Stockfish 14_202107131735]]| - | [[Leela Chess Zero|LCZero 0.28-dev+_69626]]! 56-44 |}
=Participants=
! [[#First|1]]
! [[#Premier|P]]
! [[#Superfinalfinals|SufiFinals]]
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| [[Stoofvlees]]
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==League 3==
'''[[TCEC Season 20#Third|< Prev]] [[TCEC Season 22#Third|Next >]]'''<br/>
Season 21, League 3, May 25 - May 30, 2021, timecontrol 30' + 5<nowiki>''</nowiki>
<ref>[https://tcec-chess.com/#div=l3&game=1&season=21 S21 - League 3 | TCEC - Computer Chess Broadcast]</ref>.
{| class="wikitable"
==League 2==
'''[[TCEC Season 20#Second|< Prev]] [[TCEC Season 22#Second|Next >]]'''<br/>
* Season 21, League 2, June 05 - June 11, 2021, timecontrol 30' + 5<nowiki>''</nowiki> <ref>[https://tcec-chess.com/#div=l2&game=1&season=21 S21 - League 2 | TCEC - Computer Chess Broadcast]</ref>.{| class="wikitable"! # ! Engine! Pe! Ne! Fr! De! Bo! Mi! Ha! Va! Wi! Cl! Se! Ar! P<span style="font-size: 80%; vertical-align: sub;">22</span>|- style="background-color:#ccffcc;"! 1 | [[NemorinoPedone|Pedone 20210528]]* | style="text-align:center;" | '''x'''| style="text-align:center;" | ½ ½| style="text-align:center;" | ½ 1| style="text-align:center;" | ½ 1| style="text-align:center;" | ½ ½| style="text-align:center;" | ½ 1| style="text-align:center;" | 0 1| style="text-align:center;" | 0 1| style="text-align:center;" | ½ ½| style="text-align:center;" | 1 ½| style="text-align:center;" | 1 1| style="text-align:center;" | 1 1! 15|- style="background-color:#ccffcc;"! 2 | [[DefenchessNemorino|Nemorino 6.08]]* | style="text-align:center;" | ½ ½| style="text-align:center;" | '''x'''| style="text-align:center;" | 0 1| style="text-align:center;" | ½ 0| style="text-align:center;" | 1 ½| style="text-align:center;" | ½ ½| style="text-align:center;" | ½ ½| style="text-align:center;" | ½ ½| style="text-align:center;" | 1 1| style="text-align:center;" | ½ 1| style="text-align:center;" | 1 ½| style="text-align:center;" | 1 ½! 13½|-! 3 | [[VajoletFritz|Vajolet2Fritz 17_20200830]]* | style="text-align:center;" | ½ 0| style="text-align:center;" | 1 0| style="text-align:center;" | '''x'''| style="text-align:center;" | ½ 1| style="text-align:center;" | ½ ½| style="text-align:center;" | 0 0| style="text-align:center;" | 1 ½| style="text-align:center;" | ½ 1| style="text-align:center;" | 0 1| style="text-align:center;" | 1 ½| style="text-align:center;" | 1 1| style="text-align:center;" | ½ 1! 13|-! 4 | [[PedoneDefenchess|Defenchess 2.3_dev2]]* | style="text-align:center;" | ½ 0| style="text-align:center;" | ½ 1| style="text-align:center;" | ½ 0| style="text-align:center;" | '''x'''| style="text-align:center;" | 0 1| style="text-align:center;" | 1 ½| style="text-align:center;" | 1 ½| style="text-align:center;" | 1 ½| style="text-align:center;" | ½ 0| style="text-align:center;" | ½ 1| style="text-align:center;" | ½ ½| style="text-align:center;" | ½ 1! 12½|-! 5 | [[WinterBooot|Booot 6.5]]* | style="text-align:center;" | ½ ½| style="text-align:center;" | 0 ½| style="text-align:center;" | ½ ½| style="text-align:center;" | 1 0| style="text-align:center;" | '''x'''| style="text-align:center;" | ½ ½| style="text-align:center;" | ½ ½| style="text-align:center;" | ½ ½| style="text-align:center;" | ½ 1| style="text-align:center;" | 1 ½| style="text-align:center;" | ½ 1| style="text-align:center;" | ½ 1! 12½|-! 6 | [[FritzMinic|Minic 3.07]]* | style="text-align:center;" | ½ 0| style="text-align:center;" | ½ ½| style="text-align:center;" | 1 1| style="text-align:center;" | 0 ½| style="text-align:center;" | ½ ½| style="text-align:center;" | '''x'''| style="text-align:center;" | ½ ½| style="text-align:center;" | ½ ½| style="text-align:center;" | ½ ½| style="text-align:center;" | 1 ½| style="text-align:center;" | 1 ½| style="text-align:center;" | ½ 1! 12½|-! 7 | [[ArasanHalogen|Halogen 10.12]]* | style="text-align:center;" | 1 0| style="text-align:center;" | ½ ½| style="text-align:center;" | 0 ½| style="text-align:center;" | 0 ½| style="text-align:center;" | ½ ½| style="text-align:center;" | ½ ½| style="text-align:center;" | '''x'''| style="text-align:center;" | 0 1| style="text-align:center;" | ½ 1| style="text-align:center;" | ½ ½| style="text-align:center;" | ½ ½| style="text-align:center;" | 1 ½! 11|-! 8 | [[SeerVajolet|Vajolet2 2.9.0-TCEC-S19]]* | style="text-align:center;" | 1 0| style="text-align:center;" | ½ ½| style="text-align:center;" | ½ 0| style="text-align:center;" | 0 ½| style="text-align:center;" | ½ ½| style="text-align:center;" | ½ ½| style="text-align:center;" | 1 0| style="text-align:center;" | '''x'''| style="text-align:center;" | ½ 1| style="text-align:center;" | 0 ½| style="text-align:center;" | 1 ½| style="text-align:center;" | ½ ½! 10½|- style="background-color:#ffcccc;"! 9 | [[MinicWinter|Winter 9.4]]* | style="text-align:center;" | ½ ½| style="text-align:center;" | 0 0| style="text-align:center;" | 1 0| style="text-align:center;" | ½ 1| style="text-align:center;" | ½ 0| style="text-align:center;" | ½ ½| style="text-align:center;" | ½ 0| style="text-align:center;" | ½ 0| style="text-align:center;" | '''x'''| style="text-align:center;" | ½ ½| style="text-align:center;" | 1 ½| style="text-align:center;" | ½ ½! 9½|-style="background-color:#ffcccc;"! 10 | [[BoootCrazyAra#ClassicAra|ClassicAra 0.9.4]] * | style="text-align:center;" | 0 ½| style="text-align:center;" | ½ 0| style="text-align:center;" | 0 ½| style="text-align:center;" | ½ 0| style="text-align:center;" | 0 ½| style="text-align:center;" | 0 ½| style="text-align:center;" | ½ ½| style="text-align:center;" | 1 ½| style="text-align:center;" | ½ ½| style="text-align:center;" | '''x'''| style="text-align:center;" | ½ ½| style="text-align:center;" | ½ 1! 9|- style="background-color:#ffcccc;"! 11 | [[HalogenSeer|Seer 20210531]] * | style="text-align:center;" | 0 0| style="text-align:center;" | 0 ½| style="text-align:center;" | 0 0| style="text-align:center;" | ½ ½| style="text-align:center;" | ½ 0| style="text-align:center;" | 0 ½| style="text-align:center;" | ½ ½| style="text-align:center;" | 0 ½| style="text-align:center;" | 0 ½| style="text-align:center;" | ½ ½| style="text-align:center;" | '''x'''| style="text-align:center;" | ½ 1! 7|- style="background-color:#ffcccc;"! 12 | [[CrazyAra#ClassicAraArasan|ClassicAraArasan 22.3.0]]| style="text-align:center;" | 0 0| style="text-align:center;" | 0 ½| style="text-align:center;" | ½ 0| style="text-align:center;" | ½ 0| style="text-align:center;" | ½ 0| style="text-align:center;" | ½ 0| style="text-align:center;" | 0 ½| style="text-align:center;" | ½ ½| style="text-align:center;" | ½ ½| style="text-align:center;" | ½ 0| style="text-align:center;" | ½ 0| style="text-align:center;" | '''x'''! 6|}
<span id="First"></span>
==League 1==
'''[[TCEC Season 20#First|< Prev]] [[TCEC Season 22#First|Next >]]'''<br/>
* Season 21, League 1, June 11 - June 19, 2021, timecontrol 45' + 5<nowiki>''</nowiki> <ref>[https://tcec-chess.com/#div=l1&game=1&season=21 S21 - League 1 | TCEC - Computer Chess Broadcast]</ref>{| class="wikitable"! # ! Engine! Ig! Et! Ru! Sl! Pe! Xi! ro! Ne! P<span style="font-size: 80%; vertical-align: sub;">28</span>|- style="background-color:#ccffcc;"! 1 | [Ethereal[Igel|Igel 3.0.5]]* | style="text-align:center;" | '''x'''| style="text-align:center;" | ½ 1 0 ½| style="text-align:center;" | 1 ½ 1 ½| style="text-align:center;" | ½ ½ 1 0| style="text-align:center;" | 1 ½ 1 ½| style="text-align:center;" | ½ 1 ½ 1| style="text-align:center;" | 1 ½ 0 ½| style="text-align:center;" | ½ ½ ½ 1! 17½|- style="background-color:#ccffcc;"! 2 | [[rofChadeEthereal|Ethereal 12.95]]* | style="text-align:center;" | ½ 0 1 ½| style="text-align:center;" | '''x'''| style="text-align:center;" | ½ ½ 1 0| style="text-align:center;" | ½ ½ ½ 1| style="text-align:center;" | ½ ½ 1 1| style="text-align:center;" | 1 0 ½ ½| style="text-align:center;" | 1 ½ ½ 1| style="text-align:center;" | ½ 1 1 0! 17|-! 3 | [[IgelRubiChess|RubiChess TCEC-S21]]* | style="text-align:center;" | 0 ½ 0 ½| style="text-align:center;" | ½ ½ 0 1| style="text-align:center;" | '''x'''| style="text-align:center;" | ½ ½ ½ 1| style="text-align:center;" | ½ 1 1 ½| style="text-align:center;" | ½ ½ ½ ½| style="text-align:center;" | 1 ½ 1 ½| style="text-align:center;" | ½ ½ 1 0! 15½|-! 4 | [[Slow Chess|SlowChessBlitz 2.54 avx]]* | style="text-align:center;" | ½ ½ 0 1| style="text-align:center;" | ½ ½ ½ 0| style="text-align:center;" | ½ ½ ½ 0| style="text-align:center;" | '''x'''| style="text-align:center;" | 0 ½ ½ 1| style="text-align:center;" | 1 ½ 1 ½| style="text-align:center;" | 0 ½ ½ ½| style="text-align:center;" | ½ ½ ½ 1! 14|-! 5 | [[RubiChessPedone|Pedone 20210528]]* | style="text-align:center;" | 0 ½ 0 ½| style="text-align:center;" | ½ ½ 0 0| style="text-align:center;" | ½ 0 0 ½| style="text-align:center;" | 1 ½ ½ 0| style="text-align:center;" | '''x'''| style="text-align:center;" | 1 ½ ½ 1| style="text-align:center;" | 1 ½ ½ 0| style="text-align:center;" | ½ ½ ½ 1! 12½|-! 6 | [[Xiphos|Xiphos 0.6.1]]* .| style="text-align:center;" | ½ 0 ½ 0| style="text-align:center;" | 0 1 ½ ½| style="text-align:center;" | ½ ½ ½ ½| style="text-align:center;" | 0 ½ 0 ½| style="text-align:center;" | 0 ½ ½ 0| style="text-align:center;" | '''x'''| style="text-align:center;" | ½ ½ ½ 1| style="text-align:center;" | ½ 1 ½ ½! 12|- style="background-color:#ffcccc;"! 7 | [[rofChade|rofChade 2.309]]| style="text-align:center;" | 0 ½ 1 ½| style="text-align:center;" | 0 ½ ½ 0| style="text-align:center;" | 0 ½ 0 ½| style="text-align:center;" | 1 ½ ½ ½| style="text-align:center;" | 0 ½ ½ 1| style="text-align:center;" | ½ ½ ½ 0| style="text-align:center;" | '''x'''| style="text-align:center;" | 0 ½ ½ 1! 12|- style="background-color:#ffcccc;"! 8 | [[Nemorino|Nemorino 6.08]]| style="text-align:center;" | ½ ½ ½ 0| style="text-align:center;" | ½ 0 0 1| style="text-align:center;" | ½ ½ 0 1| style="text-align:center;" | ½ ½ ½ 0| style="text-align:center;" | ½ ½ ½ 0| style="text-align:center;" | ½ 0 ½ ½| style="text-align:center;" | 1 ½ ½ 0| style="text-align:center;" | '''x'''! 11½* ...|}
<span id="Premier"></span>
==Premier Division==
'''[[TCEC Season 20#Premier|< Prev]] [[TCEC Season 22#Premier|Next >]]'''<br/>
* Season 21, Premier Division, June 21 - July 11, 2021, timecontrol 60' + 7<nowiki>''</nowiki> <ref>[https://www.tcec-chess.com/archive.html?season=21&div=p&game=1 S21 - Premier Division | TCEC - Computer Chess Broadcast]</ref>{| class="wikitable"! # ! Engine ! St ! Lc! Ko! Sv! Al ! Sc! Ig ! Et ! P<span style="font-size: 80%; vertical-align: sub;">56</span>|- style="background-color:#ccffcc;"! 1 | [[Stockfish|Stockfish 2021061923]]* | style="text-align:center;" | '''x''' | style="text-align:center;" | ½½ 0½<br/>½½ ½½| style="text-align:center;" | 10 1½<br/>1½ 1½| style="text-align:center;" | 1½ 1½<br/>½½ 1½| style="text-align:center;" | 1½ 1½<br/>½½ 1½| style="text-align:center;" | ½½ ½1<br/>½1 ½1| style="text-align:center;" | ½1 ½1<br/>½1 ½1| style="text-align:center;" | 1½ 1½<br/>1½ 1½! 37½|- style="background-color:#ccffcc;"! 2 | [[Leela Chess Zero|LCZero0.28.0-rc1_69146]]* | style="text-align:center;" | ½½ 1½<br/>½½ ½½| style="text-align:center;" | '''x''' | style="text-align:center;" | 01 01<br/>½½ ½½| style="text-align:center;" | 10 1½<br/>½½ 1½| style="text-align:center;" | ½½ 1½<br/>1½ 1½| style="text-align:center;" | ½1 ½1<br/>½1 ½1| style="text-align:center;" | ½1 ½1<br/>½1 ½1| style="text-align:center;" | ½½ 1½<br/>1½ 1½! 36½|-! 3 | [[Dragon by Komodo Chess|KomodoDragon2747.00]]| style="text-align:center;" | 01 0½<br/>0½ 0½| style="text-align:center;" | 10 10<br/>½½ ½½| style="text-align:center;" | '''x''' | style="text-align:center;" | ½½ ½1<br/>11 ½1| style="text-align:center;" | ½½ 1½<br/>1½ ½½| style="text-align:center;" | 1½ 1½<br/>½½ 1½| style="text-align:center;" | ½½ ½½<br/>1½ 1½| style="text-align:center;" | ½1 ½1<br/>½½ ½1! 33½|-! 4 | [[Stoofvlees|Stoofvlees II a18]] * | style="text-align:center;" | 0½ 0½<br/>½½ 0½| style="text-align:center;" | 01 0½<br/>½½ 0½| style="text-align:center;" | ½½ ½0<br/>00 ½0| style="text-align:center;" | '''x''' | style="text-align:center;" | 1½ ½½<br/>½½ 1½| style="text-align:center;" | 1½ 10<br/>10 1½| style="text-align:center;" | ½½ 10<br/>½½ 1½| style="text-align:center;" | ½1 ½1<br/>½1 ½1! 28|-! 5 | [[Allie#AllieStein|AllieSteinv0.8-120f959_PS1.7]]* [[Stoofvlees]]| style="text-align:center;" | 0½ 0½<br/>½½ 0½| style="text-align:center;" | ½½ 0½<br/>0½ 0½| style="text-align:center;" | ½½ 0½<br/>0½ ½½| style="text-align:center;" | 0½ ½½<br/>½½ 0½| style="text-align:center;" | '''x''' | style="text-align:center;" | ½½ 1½<br/>½½ ½½| style="text-align:center;" | ½½ 1½<br/>1½ ½0| style="text-align:center;" | 10 1½<br/>1½ ½0! 24½|-! 6 * | [[Scorpio#ScorpioNN|ScorpioNN3.0.13]]* | style="text-align:center;" | ½½ ½0<br/>½0 ½0| style="text-align:center;" | ½0 ½0<br/>½0 ½0| style="text-align:center;" | 0½ 0½<br/>½½ 0½| style="text-align:center;" | 0½ 01<br/>01 0½| style="text-align:center;" | ½½ 0½<br/>½½ ½½| style="text-align:center;" | '''x''' | style="text-align:center;" | ½1 0½<br/>½1 ½1| style="text-align:center;" | ½½ 1½<br/>1½ 1½! 24|- style="background-color:#ffcccc;"! 7 | [[Igel|Igel 3.0.5]]| style="text-align:center;" | ½0 ½0<br/>½0 ½0| style="text-align:center;" | ½0 ½0<br/>½0 ½0| style="text-align:center;" | ½½ ½½<br/>0½ 0½| style="text-align:center;" | ½½ 01<br/>½½ 0½| style="text-align:center;" | ½½ 0½<br/>0½ ½1| style="text-align:center;" | ½0 1½<br/>½0 ½0| style="text-align:center;" | '''x''' | style="text-align:center;" | ½½ 01<br/>½1 ½1! 22|- style="background-color:#ffcccc;"! 8 | [[Ethereal|Ethereal 13.07_NNUE-15EE]]| style="text-align:center;" | 0½ 0½<br/>0½ 0½| style="text-align:center;" | ½½ 0½<br/>0½ 0½| style="text-align:center;" | ½0 ½0<br/>½½ ½0| style="text-align:center;" | ½0 ½0<br/>½0 ½0* | style="text-align:center;" | 01 0½<br/>0½ ½1| style="text-align:center;" | ½½ 0½<br/>0½ 0½| style="text-align:center;" | ½½ 10<br/>½0 ½0| style="text-align:center;" | '''x''' ! 18|}<span id="finals"></span>=Finals=<span id="Infra"></span>==Infrafinal=='''[[TCEC Season 22#Infra|Next >]]'''<br/> A 50 games head to head contest between the 3rd and 4th place of the [[#Premier|Premier Division]] to determine the 3rd finishing engine of the TCEC Season 21, from July 12 to July 18, 2021.Timecontrol 90' + 9'' <ref>[https://tcec-chess.com/#div=if&game=1&season=21 S21 - Infrafinal | TCEC - Computer Chess Broadcast]</ref>. {| class="wikitable"! # ! Engine ! W! D! L! P<span style="font-size: 80%; vertical-align: sub;">50</span>|- ! 3| [[Dragon by Komodo Chess|KomodoDragon 2762.02]]| style="text-align:right;" | 17| style="text-align:right;" | 28| style="text-align:right;" | 5! 31 |-! 4| [[Stoofvlees|Stoofvlees II a18]]| style="text-align:right;" | 5| style="text-align:right;" | 28| style="text-align:right;" | 17! 19 |}
<span id="Sufi"></span>
==Superfinal== '''[[TCEC Season 20#Sufi|< Prev]] [[TCEC Season 22#Sufi|Next >]]'''<br/>July 20 - August 07, 2021, timecontrol 120'+10" <ref>[https://tcec-chess.com/#div=sf&game=1&season=21 S21 - Superfinal | TCEC - Computer Chess Broadcast]</ref><br/>  {| class="wikitable"! # ! Engine ! W! D! L! P<span style="font-size: 80%; vertical-align: sub;">100</span>|- ! 1| [[Stockfish|Stockfish 14_202107131735]]| style="text-align:right;" | 19| style="text-align:right;" | 74| style="text-align:right;" | 7! 56 |-! 2| [[Leela Chess Zero|LCZero 0.28-dev+_69626]]| style="text-align:right;" | 7| style="text-align:right;" | 74| style="text-align:right;" | 19! 44 |} After round 91 on August 05, 2021, [[Stockfish|Stockfish 14_202107131735]] had already 50½.  =Publications=* [[Matthew Sadler]] ('''2021'''). ''TCEC Season 21 SuperFinal Review''. [https://tcec-chess.com/articles/Sufi_21_-_Sadler.pdf pdf]
=Postings=
* [https://www.chessdom.com/the-failed-triumvirate-report/ “The failed triumvirate report”], [[Chessdom]], May 22, 2021
* [https://www.chessdom.com/booot-kicks-into-high-gear-wins-tcec-s21-l4/ Booot kicks into high gear, wins TCEC S21 L4], [[Chessdom]], May 25, 2021
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=77503 will Tcec allow Stockfish with a Leela net to play?] by Wilson, [[CCC]], June 17, 2021
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=77908 TCEC21 is over] by Kanizsa, [[CCC]], August 08, 2021
=External Links=
* [https://wiki.chessdom.org/TCEC_Leagues_Season_21 TCEC Leagues Season 21 - TCEC wiki]
* [https://en.wikipedia.org/wiki/TCEC_Season_21 TCEC Season 21 from Wikipedia]
* [https://www.youtube.com/channel/UCq06gd_5HTiG8IIu5-enWyA Silicon Road] by [[Matthew Sadler]], [https://en.wikipedia.org/wiki/YouTube YouTube]Videos
=References=
Retrieved from "https://www.chessprogramming.org/Special:MobileDiff/24835...26415"

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