His stated goal was to include "every major engine that is not a direct clone". Initially, the list of participants was personally chosen by Thoresen before the start of a season.
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There is no definite criterion for entering into the competition, other than inviting the top participants under active development from various rating lists which can run on their Windows platform. An initial rating is given to any new participant based on its rating in other chess engine rating lists.Ĭriteria for entering the competition TCEC generates an Elo rating list from the matches played during the tournament. In previous seasons, if an engine crashes 3 times in one event, it is disqualified to avoid distorting the results for the other engines however starting in TCEC Season 20, an engine is allowed to crash as many times as possible without being disqualified from the current event however, the engine will still be disqualified from future events unless the crash is fixed. Engines are allowed updates between stages if there is a critical play-limiting bug, they are also allowed to be updated once during the stage. Large pages are disabled, but access to various endgame tablebases is permitted. All engines run on mostly the same hardware and use the same opening book, which is set by the organizers and changed in every stage. Beginning in Season 11 in 2018, a division system was introduced, and beginning in season 21 in 2021, the season was expanded to include a Cup, a Swiss tournament, and a Fischer Random Chess tournament. In the superfinal, each engine plays 50 openings, once as each side. Each season is divided into several qualifying stages and one "superfinal", where the top two chess engines play 100 games to win the title of "TCEC Grand Champion". The TCEC competition is divided into seasons, where each season happens over a course of a few months, with matches played round-the-clock and broadcast live over the internet. 4.1 All-time table for champions after TCEC Season 20.1.3 Criteria for entering the competition.The current TCEC champion is Stockfish 14, which defeated LCZero 0.28 56-44 in the TCEC Season 21 Superfinal 100-game match, which took place June 20 - August 7, 2021. Since season 5, TCEC has been sponsored by Chessdom Arena. Īfter a short break in 2012, TCEC was restarted in early 2013 (as nTCEC) and is currently active (renamed as TCEC in early 2014) with 24/7 live broadcasts of chess matches on its website. It is often regarded as the Unofficial World Computer Chess Championship because of its strong participant line-up and long time-control matches on high-end hardware, giving rise to very high-class chess. It was organized, directed, and hosted by Martin Thoresen until the end of Season 6 from Season 7 onward it has been organized by Chessdom. Top Chess Engine Championship, formerly known as Thoresen Chess Engines Competition ( TCEC or nTCEC), is a computer chess tournament that has been run since 2010. Unofficial World Computer Chess Championship