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TCEC
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. 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. 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. The tournament has attracted nearly all the top engines compared to the World Computer Chess Championship. After 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. Since season 5, TCEC has been sponsored by Chessdom Arena. Overview Basic structure of competition The TCEC competition is divided into seasons, where each season happens over a cours ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stockfish (chess)
Stockfish is a free and open-source chess engine, available for various desktop and mobile platforms. It can be used in chess software through the Universal Chess Interface. Stockfish has consistently ranked first or near the top of most chess-engine rating lists and, as of October 2022, is the strongest CPU chess engine in the world. It has won the Top Chess Engine Championship 13 times and the Chess.com Computer Chess Championship 19 times. Stockfish is developed by Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad, Stéphane Nicolet, Stefan Geschwentner, and Joost VandeVondele, with many contributions from a community of open-source developers. It is derived from Glaurung, an open-source engine by Tord Romstad released in 2004. Features Stockfish can use up to 1024 CPU threads in multiprocessor systems. The maximal size of its transposition table is 32 TB. Stockfish implements an advanced alpha–beta search and uses bitboards. Compared to other engines, it is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leela Chess Zero
Leela Chess Zero (abbreviated as LCZero, lc0) is a free, open-source, and deep neural network–based chess engine and volunteer computing project. Development has been spearheaded by programmer Gary Linscott, who is also a developer for the Stockfish chess engine. Leela Chess Zero was adapted from the Leela Zero Go engine, which in turn was based on Google's AlphaGo Zero project. One of the purposes of Leela Chess Zero was to verify the methods in the AlphaZero paper as applied to the game of chess. Like Leela Zero and AlphaGo Zero, Leela Chess Zero starts with no intrinsic chess-specific knowledge other than the basic rules of the game. Leela Chess Zero then learns how to play chess by reinforcement learning from repeated self-play, using a distributed computing network coordinated at the Leela Chess Zero website. As of December 2022, Leela Chess Zero has played over 1.5 billion games against itself, playing around 1 million games every day, and is capable of play at a lev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AllieStein
Leela Chess Zero (abbreviated as LCZero, lc0) is a free, open-source, and deep neural network–based chess engine and volunteer computing project. Development has been spearheaded by programmer Gary Linscott, who is also a developer for the Stockfish chess engine. Leela Chess Zero was adapted from the Leela Zero Go engine, which in turn was based on Google's AlphaGo Zero project. One of the purposes of Leela Chess Zero was to verify the methods in the AlphaZero paper as applied to the game of chess. Like Leela Zero and AlphaGo Zero, Leela Chess Zero starts with no intrinsic chess-specific knowledge other than the basic rules of the game. Leela Chess Zero then learns how to play chess by reinforcement learning from repeated self-play, using a distributed computing network coordinated at the Leela Chess Zero website. As of December 2022, Leela Chess Zero has played over 1.5 billion games against itself, playing around 1 million games every day, and is capable of play at a lev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TCEC Season 20
The 20th season of the Top Chess Engine Championship began on 1 December 2020 and ended on 1 February 2021. The defending champion was Stockfish, which defeated Leela Chess Zero in the previous season's superfinal. The season 20 superfinal was a rematch between the same two engines. Stockfish once again came out ahead, winning by 6 games (+14 -8 =78). Overview TCEC underwent some major changes for season 20. There were a plethora of new engines participating in the Qualification League for the first time. Furthermore, two major new rules changes went into effect: # Engines are no longer disqualified if they crash three times, although crashes are still treated as losses. # The "TCEC win rule", which stated that games are adjudicated as won if both engines showed a +10 eval or greater for 5 consecutive moves, is abolished. Instead, games are played till mate, 3-fold repetition, the 50-move rule is reached, a Syzygy 6-piece tablebase position is reached, or if the "TCEC draw rule ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TCEC Season 17
The 17th season of the Top Chess Engine Championship began on 2 January 2020 and ended on 22 April 2020. TCEC Season 16 3rd-place finisher Leela Chess Zero won the championship, defeating the defending champion Stockfish 52.5-47.5 in the superfinal. Season 17 featured for the first time two separate leagues, one for GPU-based engines and one for CPU-based engines. TCEC also raised the computing power available to both CPU and GPU engines. The hardware for CPU engines was doubled to 88 cores, while the hardware for GPU engines was raised to 4 RTX 2080 Ti's. Overview In keeping with its identity as a competition run at long time controls on high-end hardware, TCEC secured a hardware upgrade for the competing CPU engines. Among other changes, the number of cores available is doubled from 44 to 88, the operating system used is now Linux, and Syzygy endgame tablebases are now cached directly in the RAM for faster access. Because this upgrade advantages CPU engines compared to GPU en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Komodo (chess)
Komodo and Dragon by Komodo Chess (also known as Dragon or Komodo Dragon) are UCI chess engines developed by Komodo Chess, which is a part of Chess.com. The engines were originally authored by Don Dailey and GM Larry Kaufman. Dragon and Komodo are commercial chess engines, but older versions of Komodo (13 and older) are free for non-commercial use. Dragon is consistently ranked near the top of most major chess engine rating lists, along with Stockfish and Leela Chess Zero. History Komodo Komodo was derived from Don Dailey's former engine Doch in January 2010. The first multiprocessor version of Komodo was released in June 2013 as ''Komodo 5.1 MP''. This version was a major rewrite and a port of Komodo to C++11. A single-processor version of Komodo (which won the CCT15 tournament in February earlier that year) was released as a stand-alone product shortly before the 5.1 MP release. This version, named ''Komodo CCT'', was still based on the older C code, and was approxima ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TCEC Season 14
The 14th season of the Top Chess Engine Championship took place between 17 November 2018 and 24 February 2019. Stockfish was the defending champion, having defeated Komodo in the previous season's superfinal. The season is notable for two things: the emergence of two strong, new engines, the Komodo variant Komodo Monte Carlo tree search (MCTS) and the neural network engine Leela Chess Zero, and the dramatic superfinal. Komodo MCTS and Leela fought their way from Division 4 and Division 3 respectively to the Premier Division, with Leela further qualifying for the superfinal against Stockfish. The superfinal was a topsy-turvy affair with the lead changing hands several times. It finished as the closest superfinal TCEC has ever seen, with Stockfish winning by a single game, 50.5–49.5 (+10 =81 -9). Overview Structure The season comprised five divisions: from the lowest Division 4 to the Premier Division. The top two engines of each division promote to the division above, while the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TCEC Season 18
The 18th season of the Top Chess Engine Championship began on 4 May 2020 and ended on 3 July 2020. The defending champion was Leela Chess Zero, which defeated Stockfish in the previous season's superfinal. The two season 17 superfinalists qualified again for the superfinal. This time Stockfish won, winning by 7 games (+23−16=61). Overview For this season, there are five leagues: the Qualification League (QL), League Three, League Two, League One, and Premier Division. Two engines promote in every league, with the top two engines of the Premier Division contesting a 100-game superfinal. Updates are allowed only between League Three and League Two, between League One and Premier Division, and between Premier Division and the superfinal. In a small change to previous seasons' rules, draw adjudication now occurs if the evaluations of both engines are within +/− 0.15 for five consecutive moves, after move 35. This increases the threshold of evaluation compared to +/− 0.08 for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TCEC Season 19
The 19th season of the Top Chess Engine Championship began on 6 August 2020 and ended on 16 October 2020. The season 19 superfinal was a rematch between Stockfish and Leela Chess Zero, the same two engines that had contested the superfinal in the previous two seasons. Stockfish, the defending champion, won by 9 games (+18 -9 =73). Overview The format of TCEC Season 19 is largely unchanged from that of Season 18. The only difference is that the time control in the superfinal is once again 120 minutes + 10 seconds per move, increased from 90 min + 10s in Season 18. The rules are also largely unchanged, with the only significant addition being r-mobility as a tiebreak criterion. This tiebreak depends on the number of legal moves available to both sides in the last phase of the game; the side with the fewer legal moves loses. Tiebreak rules The tiebreak rules for TCEC Season 19 are: #For any event except the superfinal: the number of crashes. #Head-to-head score. #Number of wins. # ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TCEC Season 16
The 16th season of the Top Chess Engine Championship began on 15 July 2019 and ended on 13 Oct 2019. The season showed how fast neural network-based engines were progressing relative to traditional ones, with neural network-based engines making up half of Premier Division for the first time. Furthermore, AllieStein, a neural network-based engine that had reached Premier Division last season, made its first appearance in the superfinal after finishing second in Premier Division. Nonetheless, a traditional engine – Stockfish – won both Premier Division and the superfinal. Overview Structure TCEC changed its format for this season again, with the aim of allowing more chances for new engines to climb the rankings. This is in turn necessary because of the fast pace of development in computer chess, with numerous very strong engines emerging quickly. The superfinal and Premier Division were kept, but the lower divisions were replaced by three leagues: a Qualification League, League ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TCEC Season 15
The 15th season of the Top Chess Engine Championship began on the 6 March 2019 and ended on 12 May 2019. The season featured for the first time two separate Division 4s, the winners of which moved to a playoff for promotion to Division 3. Also notable is the emergence of a new neural network-based engine based on AlphaZero, AllieStein, which reached the premier division, and Leela Chess Zero's victory in the superfinal, which marks the first time a neural-network engine has won the superfinal. Overview Structure The season comprised six divisions: two Division 4s (4a and 4b), a Division 3, 2, and 1, and the Premier Division. The top two engines of Division 4 advance to a playoff against each other, with the top two finishers advancing to Division 3. From there on, the structure is the same as the previous seasons: the top two engines of each division promote to the division above, while the bottom two engines relegate. The top two engines of the Premier Division contest a 100-gam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Houdini (chess)
Houdini is a UCI chess engine developed by Belgian programmer Robert Houdart. It is influenced by open-source engines IPPOLIT/RobboLito, Stockfish, and Crafty. Versions up to 1.5a are available for non-commercial use, while 2.0 and later are commercial only. Playing style Chess commentator and video annotator CM Tryfon Gavriel compared Houdini's playing style to that of the Romantic Era of chess, where an attacking, sacrificial style was predominant. According to Robert Houdart, Houdini's advantage against other top engines is in its handling of piece mobility, which is why it "favors aggressive play that tries to win the game". Version history The latest stable release of Houdini comes in two versions: ''Houdini 6 Standard'' and ''Houdini 6 Pro''. ''Houdini 6 Pro'' supports up to 128 processor cores, 128 GB of RAM (hash) and is NUMA-aware, ''Houdini 5 Standard'' only supports up to 8 processor cores, 4 GB of hash and is not NUMA-aware. As with many other UCI eng ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
