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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] |
Top Chess Engine Championship
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 cour ... [...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] |
Danny Gormally
Daniel William Gormally (born 4 May 1976) is an English chess Grandmaster. His peak rating is 2573, achieved in the January 2006 rating list. He was born in South Shields and was brought into the game of chess by his father at the age of 7. Both being members of the South Shields Chess Club. He shared first place at the Politiken Cup in 1998 and in 2003, won the Challengers tournament of the 78th Hastings International Chess Congress. In September 2006, he tied for 2nd-9th with Luke McShane, Stephen J. Gordon, Gawain Jones, Šarūnas Šulskis, Luís Galego, Klaus Bischoff and Karel van der Weide in the 2nd EU Individual Championship in Liverpool. In November 2006 Gormally was joint winner of the British Rapidplay Chess Championship. In 2015 he tied for the second place with David Howell and Nicholas Pert in the 102nd British Championship and eventually finished fourth on tiebreak. Also in 2015, he appeared as a contestant in three episodes of the television quiz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viktor Korchnoi
Viktor Lvovich Korchnoi ( rus, Ви́ктор Льво́вич Корчно́й, p=vʲiktər lʲvovʲɪtɕ kɐrtɕˈnoj; 23 March 1931 – 6 June 2016) was a Soviet (before 1976) and Swiss (after 1980) chess grandmaster (GM) and chess writer. He is considered one of the strongest players never to have become World Chess Champion. Born in Leningrad, Soviet Union (USSR), Korchnoi defected to the Netherlands in 1976, and resided in Switzerland from 1978, becoming a Swiss citizen. Korchnoi played four matches, three of which were official, against GM Anatoly Karpov. In 1974, Korchnoi lost the Candidates Tournament final to Karpov. Karpov was declared World Champion in 1975 when GM Bobby Fischer declined to defend his title. Korchnoi then won two consecutive Candidates cycles to qualify for World Chess Championship matches with Karpov in 1978 and 1981 but lost both. The two players also played a drawn training match of six games in 1971. Korchnoi was a candidate for the World Champio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anatoly Karpov
Anatoly Yevgenyevich Karpov ( rus, links=no, Анато́лий Евге́ньевич Ка́рпов, p=ɐnɐˈtolʲɪj jɪvˈɡʲenʲjɪvʲɪtɕ ˈkarpəf; born May 23, 1951) is a Russian and former Soviet chess grandmaster, former World Chess Champion, and politician. He was the 12th World Chess Champion from 1975 to 1985, a three-time FIDE World Champion (1993, 1996, 1998), twice World Chess champion as a member of the USSR team (1985, 1989), and a six-time winner of Chess Olympiads as a member of the USSR team (1972, 1974, 1980, 1982, 1986, 1988). The International Association of Chess Press awarded him nine Chess Oscars (1973, 1974, 1975, 1976, 1977, 1979, 1980, 1981, 1984). Karpov's chess tournament successes include over 160 first-place finishes. He had a peak Elo rating of 2780, and his 102 total months at world number one is the third-longest of all time, behind Magnus Carlsen and Garry Kasparov, since the inception of the FIDE ranking list in 1970. Karpov is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
King's Gambit
The King's Gambit is a chess opening that begins with the moves: :1. e4 e5 :2. f4 White offers a pawn to divert the black e-pawn. If Black accepts the gambit, White has two main plans. The first is to play d4 and Bxf4, regaining the gambit pawn with domination. The alternative plan is to play Nf3 and Bc4 followed by 0-0, when the semi-open f-file created after a pawn push to g3 allows White to attack the weakest point in Black's position, the pawn on f7. Theory has shown that, in order to maintain the gambit pawn, Black may well be forced to weaken the with moves such as ...g5 or odd piece placement (e.g. ). A downside to the King's Gambit is that it weakens White's king's position, exposing it to the latent threat of ...Qh4+ (or ). With a black pawn on f4, it is not usually viable for White to respond to the check with g2-g3, but if the king moves then it also loses the right to castle. The King's Gambit is one of the oldest documented openings, appearing in one of the e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Romantic Chess
Romantic chess is a style of chess popular in the 18th century until the 1880s. This style of chess emphasizes quick, tactical maneuvers rather than long-term strategic planning. Romantic players consider winning to be secondary to winning with style. The Romantic era of play was followed by the Scientific, Hypermodern, and New Dynamism eras. Games during this era generally consisted of 1.e4 openings such as the King's Gambit and Giuoco Piano. Queen-side pawn openings were not popular and seldom played. The Romantic era is generally considered to have ended with the 1873 Vienna tournament where Wilhelm Steinitz popularized and the . This domination ushered in a new age of chess known as the "Modern", or Classical school, which would last until the 1930s when hypermodernism began to become popular. The Romantic era is generally considered to have reached its peak with Alexander McDonnell and Louis-Charles Mahé de La Bourdonnais, the two dominant chess players of the 1830s. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sicilian Defence, Najdorf Variation
The Najdorf Variation ( ) of the Sicilian Defence is one of the most popular, reputable and deeply studied of all chess openings. ''Modern Chess Openings'' calls it the "Cadillac" or "Rolls-Royce" of chess openings. The opening is named after the Polish-Argentine grandmaster Miguel Najdorf, although he was not the first strong player to play the variation. Many players have relied on the Najdorf (notably Bobby Fischer and Garry Kasparov, although Kasparov would often transpose into a Scheveningen). The Najdorf begins: :1. e4 c5 :2. Nf3 d6 :3. d4 cxd4 :4. Nxd4 Nf6 :5. Nc3 a6 Black's 5...a6 aims to deny the b5-square to White's knights and light-square bishop while maintaining flexible development. If Black plays 5...e5 immediately, then after 6.Bb5+ Bd7 (or 6...Nbd7 7.Nf5) 7.Bxd7+ Nbxd7 (or Qxd7) 8.Nf5, the knight on f5 is difficult to dislodge without concessions. Games in the Najdorf frequently feature opposite-side castling, where White castles queenside and both s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Matthew Sadler
Matthew David Sadler (born 15 May 1974) is an English chess grandmaster, chess writer and two-time British Chess Champion. He is the No. 2 ranked English player Personal life Sadler has a French mother, speaks French perfectly and is also qualified to play in closed French events. He was tipped to reach the heights scaled by other leading English players as Michael Adams and Nigel Short but made the decision to cease playing professionally in his mid 20s, opting for an IT career in the Netherlands. Chess career Sadler won the British Championship in 1995 at the age of 21 and again in 1997 (jointly with Michael Adams). He represented England in the 1996 Chess Olympiad, scoring 10½/13 and winning a gold medal for the best score on board four (England finished fourth), and also played in 1998 scoring 7½/12. He made 7/9 on board four for England at the European Team Chess Championship in Pula in 1997. His was the best individual score of the five-man English team and so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queen's Indian Defense
The Queen's Indian Defense (QID) is a chess opening defined by the moves: :1. d4 Nf6 :2. c4 e6 :3. Nf3 b6 The opening is a solid defense to the Queen's Pawn Game. 3...b6 increases Black's control over the central light squares e4 and d5 by preparing to fianchetto the , with the opening deriving its name from this maneuver. As in the other Indian defenses, Black attempts to control the with pieces in hypermodern style, instead of occupying it with pawns in classical style. By playing 3.Nf3, White sidesteps the Nimzo-Indian Defense that arises after 3.Nc3 Bb4. The Queen's Indian is regarded as the sister opening of the Nimzo-Indian, since both openings aim to impede White's efforts to gain full control of the center by playing e2–e4. Together, they are a well-respected response to 1.d4. Main line: 4.g3 4. g3 (''ECO'' E15–E19) has long been White's most popular line against the Queen's Indian. It contests the by preparing to fianchetto the light-squared bishop. ... [...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] |
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] |
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