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in [https://en.wikipedia.org/wiki/Stockholm Stockholm], July 2018. It won the [[TCEC Season 13#Fourth|fourth division]] of [[TCEC Season 13]] in August 2018, [[#Lc0|Lc0]] finally coming in third in the [[TCEC Season 13#Third|third division]].
==Breakthrough==
[[TCEC Season 14]] from November 2018 until January February 2019 became a breakthrough, Lc0 winning the [[TCEC Season 14#Third|third]], [[TCEC Season 14#Second|second]] and [[TCEC Season 14#First|first]] division, to only narrowly miss the even [[TCEC Season 14#SuperfinalPremier|superfinalqualify]], tied with runner-up [[Komodo]] at for the [[TCEC Season 14#PremierSuperfinal|premier divisionsuperfinal]], losing by the narrow margin of +10 =81 -9, '''50½ - 49½''' versus [[Stockfish]].RunnerAgain runner-up at the [[TCEC Season 15#Premier|TCEC Season 15 premier division]] in April 2019,Lc0 aka '''LCZero v0.21.1-nT40.T8.610''' won the [[TCEC Season 15#Superfinal|superfinal]] in May 2019 versus [[Stockfish]] with +14 =79 -7, '''53½-46½''' <ref>[https://blog.lczero.org/2019/05/lc0-won-tcec-15.html Lc0 won TCEC 15] by [[Alexander Lyashuk|crem]], [[Leela Chess Zero|LCZero blog]], May 28, 2019</ref>.
At the [[TCEC Season 16#Premier|TCEC Season 16 premier division]] in September 2019, Lc0 became in third behind Stockfish and the [[Supervised Learning|supervised]] trained [[Allie#AllieStein|AllieStein]],
but Lc0 took revanche by winning the [[TCEC Season 17#Premier|TCEC Season 17 premier division]] in spring 2020, as '''LCZero v0.24-sv-t60-3010''' fighting down Stockfish in a thrilling [[TCEC Season 17#Superfinal|superfinal]] in April 2020 with +17 =71 -12, '''52½-47½''' <ref>[https://lczero.org/blog/2020/04/tcec-s17-super-final-report/ TCEC S17 SUper FInal report] by @glbchess64, [[Leela Chess Zero|LCZero blog]], April 21, 2020</ref>.
