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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] |
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] |
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] |
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] |
Sicilian Defence, Scheveningen Variation
In chess, the Scheveningen Variation of the Sicilian Defence is an opening that is a line of the Open Sicilian characterised by Black setting up a "small centre" with pawns on d6 and e6. There are numerous move orders that reach the Scheveningen; a common one is: :1. e4 c5 :2. Nf3 d6 :3. d4 cxd4 :4. Nxd4 Nf6 :5. Nc3 e6 The seemingly modest d6–e6 pawn centre affords Black a solid defensive barrier, control of the critical d5 and e5 squares, and retains flexibility to break in the centre with either ...e5 or ...d5. Black can proceed with rapid , and the opening provides sound counterchances and considerable scope for creativity. The line has been championed by Garry Kasparov, among many other distinguished grandmasters. Origin The variation first came to international attention during the 1923 chess tournament in the village Scheveningen at the North Sea coast near The Hague. During the tournament the variation was played several times by several players, including ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
YouTube
YouTube is a global online video platform, online video sharing and social media, social media platform headquartered in San Bruno, California. It was launched on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim. It is owned by Google, and is the List of most visited websites, second most visited website, after Google Search. YouTube has more than 2.5 billion monthly users who collectively watch more than one billion hours of videos each day. , videos were being uploaded at a rate of more than 500 hours of content per minute. In October 2006, YouTube was bought by Google for $1.65 billion. Google's ownership of YouTube expanded the site's business model, expanding from generating revenue from advertisements alone, to offering paid content such as movies and exclusive content produced by YouTube. It also offers YouTube Premium, a paid subscription option for watching content without ads. YouTube also approved creators to participate in Google's Google AdSens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anish Giri
Anish Kumar Giri ( ne, अनीश कुमार गिरी; russian: Аниш Кумар Гири; born 28 June 1994) is a Russian-born Dutch chess grandmaster. A chess prodigy, he completed the requirements for the title Grandmaster at the age of 14 years, 7 months and 2 days. FIDE awarded him the title in 2009. Giri is a four-time Dutch champion (2009, 2011, 2012, and 2015) and won the Corus Chess B Group in 2010. He has represented the Netherlands at five Chess Olympiads (2010, 2012, 2014, 2016, 2018). He also won major international tournaments, including the 2012 Reggio Emilia tournament, 2017 Reykjavik Open and shared 1st place in the 2015 London Chess Classic and 2018 Wijk aan Zee. In 2019 he won clear first at the Third Edition of the Shenzhen Masters, deemed by some to be his first supertournament victory and supported by Dutch Chess Federation (KNSB). Anish Giri is the No. 1 ranked player in the Netherlands, having switched from Russia in 2009. In 2021 Wijk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter Heine Nielsen
Peter Heine Nielsen (born 24 May 1973) is a Danish chess trainer and player. He was awarded the title of Grandmaster by FIDE in 1994. He coached world champions Vishwanathan Anand and Magnus Carlsen winning World Championships in 2007, 2008, 2010, 2012, 2014, 2016, 2018, and 2021. Chess career Nielsen was awarded the title of International Master by FIDE in 1991 and that of Grandmaster in 1994. He won the Danish Chess Championship five times: in 1996, 1999, 2001, 2003, and 2008. He played for Denmark in seven Chess Olympiads, three times on top board, with an overall result of 60.1% (+24−10=35). He won an individual bronze medal on third board at Moscow 1994. On January 30, 2004 he played against ChessBrain – which earned the world record as the largest distributed chess computer. The result was a draw. By September 2005, Nielsen's Elo rating in the FIDE list was 2668, at the time the highest rating for any player from the Nordic countries. Coaching career Nielsen coach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laurent Fressinet
Laurent Fressinet (; born 30 November 1981 in Dax) is a French chess grandmaster. He is a two-time French Chess Champion. Career He won the French Chess Championship in 2010 and 2014. In 2012 he finished second in the European Individual Chess Championship in Plovdiv. Twice runner-up at the European Blitz Championship, in 2006 and 2007, and French Rapid Chess Champion in 2009, 2011 and 2022, Fressinet won the last leg of the French Rapid Grand-Prix in Villandry and finished second in the Grand-Prix Final in Ajaccio in 2012. In the 2013 Alekhine Memorial tournament, held from 20 April to 1 May, Fressinet finished sixth, with +1−1=7. In May 2014 he won the 22nd Sigeman & Co Chess Tournament in Malmö, Sweden. In October 2015, Fressinet tied for 1st–3rd with P. Harikrishna and Gabriel Sargissian at the 2nd PokerStars Isle of Man International Chess Tournament in Douglas, Isle of Man and won the 4th Anatoly Karpov Trophy rapid tournament in Cap d'Agde by defeating Karpov hims ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jan Gustafsson
Jan Gustafsson (born 25 June 1979) is a German chess player. He was awarded the title Grandmaster by FIDE in 2003. He is a co-founder of Chess24.com, and regularly analyses and commentates games for the website. Biography Gustafsson was born in Hamburg. His parents took a break from their careers when he was a child to spend a few years sailing in the Mediterranean Sea, and Gustafsson started playing chess in this setting as there were few other sports that were playable on a boat. The family then lived in Spain before returning to Hamburg, where Gustafsson played in the local chess club. He soon became a strong player and was part of the team that won the U13 German Team Championship in 1992. Two years later, he won the U15 German Chess Championship, and in 1996 he won both the U17 Championship and the U20 Team Championship. Gustafsson was granted the title of International Master in 1999 and that of Grandmaster in 2003. He is one of the strongest German players; he finished ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ICGA Journal
The ''ICGA Journal'' is a quarterly academic journal published by the International Computer Games Association. It was renamed in 2000. Its previous name was the ''ICCA Journal'' of the International Computer Chess Association, which was founded in 1977. The journal covers computer analysis on two-player games, especially games with perfect information such as chess, checkers, and Go. It has been the primary outlet for publication of articles on solved games, including the development of endgame tablebases in chess and other games. For example, John W. Romein and Henri E. Bal reported in the journal in 2002 that they had solved Awari and, in 2015, David J. Wu reported his solution for the Arimaa Challenge.{{cite journal , first=David J. , last=Wu , year=2015 , title=Designing a Winning Arimaa Program , journal=ICGA Journal , volume=38 , number=1 , pages=19–40 , doi=10.3233/ICG-2015-38104 , url=https://icosahedral.net/downloads/djwu2015arimaa.pdf From 1983 till 2015 ''ICGA Jou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open Sicilian
The Sicilian Defence is a chess opening that begins with the following moves: :1. e4 c5 The Sicilian is the most popular and best-scoring response to White's first move 1.e4. Opening 1.d4 is a statistically more successful opening for White because of the high success rate of the Sicilian defence against 1.e4. '' New In Chess'' stated in its 2000 Yearbook that, of the games in its database, White scored 56.1% in 296,200 games beginning 1.d4, but 54.1% in 349,855 games beginning 1.e4, mainly because the Sicilian held White to a 52.3% score in 145,996 games. 17% of all games between grandmasters, and 25% of the games in the Chess Informant database, begin with the Sicilian. Grandmaster John Nunn attributes the Sicilian Defence's popularity to its "combative nature": "in many lines Black is playing not just for equality, but for the advantage. The drawback is that White often obtains an early initiative, so Black has to take care not to fall victim to a quick attack." Grand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
King's Indian
The King's Indian Defence is a common chess opening. It is defined by the following moves: :1. d4 Nf6 :2. c4 g6 Black intends to follow up with 3...Bg7 and 4...d6 (the Grünfeld Defence arises when Black plays 3...d5 instead, and is considered a separate opening). White's major third move options are 3.Nc3, 3.Nf3 or 3.g3, with both the King's Indian and Grünfeld playable against these moves. The ''Encyclopaedia of Chess Openings'' classifies the King's Indian Defence under the codes E60 through E99. The King's Indian is a hypermodern opening, where Black deliberately allows White control of the with its pawns, with the view to subsequently challenge it. In the most critical lines of the King's Indian, White erects an imposing pawn centre with Nc3 followed by e4. Black stakes out its own claim to the centre with the Benoni-style ...c5, or ...e5. If White resolves the central pawn tension with d5, then Black follows with either ...b5 and queenside play, or ...f5 and an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
