Rybka (dance)
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Rybka (dance)
Rybka is a computer chess engine designed by International Master Vasik Rajlich. Around 2011, Rybka was one of the top-rated engines on chess engine rating lists and won many computer chess tournaments. After Rybka won four consecutive World Computer Chess Championships from 2007 to 2010, it was stripped of these titles after the International Computer Games Association concluded in June 2011 that Rybka was plagiarized from both the Crafty and the Fruit chess engines and so failed to meet their originality requirements. In 2015FIDE Ethics Commission following a complaint put forward by Vasik Rajlich and chess engine developer and games publisher Chris Whittington regarding ethical breaches during internal disciplinary proceedings, ruled the ICGA guilty and sanctioned ICGA with a warning. Case 2/2012. ChessBase published a challenging two-part interview-article about the process and verdict with ICGA spokesperson David Levy. Subsequently, ChessBase recruited Rejlich to prod ...
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Vasik Rajlich
Vasik Rajlich (born 1971 in Cleveland, Ohio) is an International Master in chess and the author of Rybka, previously one of the strongest chess playing programs in the world. Rajlich is a dual Czechoslovakian-American citizen by birth; he was born in the United States of America to Czech parents, at that time graduate students, but grew up in Prague. He later spent years in the United States as a student, graduating from MIT. He married Iweta (née Radziewicz) on 19 August 2006. Iweta, who is also an International Master in chess, helps him with the development of Rybka as its tester. In April 2012, the couple was living in Budapest, Hungary and had one child, a son. In April 2012, Rajlich participated in an April Fools' Day prank on ChessBase—claiming by using Rybka he had proven to a "99.99999999% certainty" that the accepted King's Gambit is a draw for White, but only after 3. Be2. Rajlich later admitted on ChessBase, that, "we're still probably a good 25 or so orders o ...
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Bitboard
A bitboard is a specialized bit array data structure commonly used in computer systems that play board games, where each bit corresponds to a game board space or piece. This allows parallel bitwise operations to set or query the game state, or determine moves or plays in the game. Bits in the same bitboard relate to each other by the rules of the game, often forming a game position when taken together. Other bitboards are commonly used as masks to transform or answer queries about positions. Bitboards are applicable to any game whose progress is represented by the state of, or presence of pieces on, discrete spaces of a gameboard, by mapping of the space states to bits in the data structure. Bitboards are a more efficient alternative board representation to the traditional ''mailbox'' representation, where each piece or space on the board is an array element. Bitboards are especially effective when the associated bits of various related states on the board fit into a single wo ...
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Zappa (Chess Engine)
Zappa, Zap!Chess or Zappa Mexico, is a UCI chess engine written by Anthony Cozzie, a graduate student at the University of Illinois at Urbana-Champaign. The program emphasizes sound search and a good use of multiple processors. Earlier versions of Zappa are free (though not open-source software) and the current version (Zappa Mexico) is available at Shredder Computer Chess. History Zappa scored an upset victory at the World Computer Chess Championship in August, 2005, in Reykjavík, Iceland where it won with a score of 10 out of 11, and beat both Junior and Shredder, programs that had won the championship many times. In the speed chess portion of the tournament Zappa placed second, after Shredder. Zappa's other tournament successes include winning CCT7 on the Internet Chess Club (ICC) and defeating Grandmaster Jaan Ehlvest 3-1. In Mexico in September 2007 Zappa won a match against Rybka by a score of 5 - 4. Many commentators had predicted a slew of draws based on th ...
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International Paderborn Computer Chess Championship
The International Paderborn Computer Chess Championship was an annual chess tournament for computer chess programs held from 1991 until 2007. It was organized by the University of Paderborn. The fifth edition in 1995 was also the 13th edition of the World Microcomputer Chess Championship. Champions : References * Complete results and crosstables the CSVN * Reports from Chessbase20022003
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TWIC Twic State was a state in South Sudan that existed between 2 October 2015 and 22 February 2020. It was located in the Bahr el Ghazal region and it bordered Aweil East to the ...
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Freestyle Chess
Advanced chess is a form of chess in which each human player uses a computer chess program to explore the possible results of candidate moves. Despite this computer assistance, it is the human player who controls and decides the game. Also called cyborg chess or centaur chess, advanced chess was introduced for the first time by grandmaster Garry Kasparov, with the aim of bringing together human and computer skills to achieve the following results: * increasing the level of play to heights never before seen in chess; * producing blunder-free games with the qualities and the beauty of both perfect tactical play and highly meaningful strategic plans; * offering the public an overview of the mental processes of strong human chess players and powerful chess computers, and the combination of their forces. A variant or superset of advanced chess is freestyle chess, in which teams are also allowed and, within the established time limits, every possible form of consultation. Freestyle ches ...
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Opening Book
A chess opening book is a book on chess openings. This is by far the most common type of literature on chess. These books describe many major lines, like the Sicilian Defence, Ruy Lopez, and Queen's Gambit, as well many minor variations of the main lines. Types There are several types of opening manuals: # Manuals dealing with one specific opening - Often these manuals have highly optimistic titles, like ''Black to Play and Win with 1...g6'' (Andrew Soltis), but some are more modest: ''Starting out: the King's Indian'' ( Joe Gallagher). In general, these books are the most accessible to the general reader, and cover the most material for individual opening systems (though some also cover openings in general). # Manuals giving a system or repertoire - These manuals discuss two or more opening systems, often related by similar tactical themes, pawn structures, or strategic aims. The aim is generally to get the player to the middle game with a playable position without too much tr ...
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Dagh Nielsen
Nawab Mirza Khan Daagh Dehlvi ( ur, , 25 May 1831 – 17 March 1905) was a poet known for his Urdu ''ghazals''. He belonged to the old Delhi school of Urdu poetry.Flashback: Remembering a Mughal city
Dawn (newspaper), Published 15 January 2012, Retrieved 17 May 2018
He wrote romantic and sensuous poems and ''ghazals'' in simple and chaste Urdu, minimising usage of words. He laid great emphasis on the Urdu and its usage. He wrote under the ''takhallus'' (Urdu word for



REBEL (chess)
REBEL was a world champion chess program developed by Ed Schröder. Development of REBEL started in 1980 on a TRS-80, and it was ported many times to dedicated hardware and the fastest microprocessors of the day: *1980s – Running on a TRS-80, Apple II, and inside of Mephisto brand dedicated chess computers, it won the Dutch open computer chess championship four times. *1991 – Ported to the ARM ChessMachine and named Gideon, it won the World Microcomputer Chess Championship. *1992 – Gideon won the World Computer Chess Championship, the first time a microprocessor came ahead of a field of mainframes, supercomputers, and custom chess hardware. *1990s – REBEL was ported to Microsoft DOS and then Microsoft Windows and sold commercially **1997 – REBEL won a match with GM Arthur Yusupov 10.5–6.5, the first successful challenge of a chess grandmaster by a commercial program. **1998 – REBEL won a match with GM Viswanathan Anand 5–3 (but lost 0.5–1.5 in the standard time ...
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Jeroen Noomen
Jeroen () is a Dutch male given name originating from the Greek Hieronymus, and is equivalent to the English name Jerome. In the Netherlands, there are around 52,000 people who are named Jeroen, while in Belgium there are around 11,000 people of that name. Jeroen may refer to: Belgian people *Jeroen Van Herzeele (born 1965), jazz saxophonist Dutch people * Jeroen Bleekemolen (born 1981), professional racing driver * Jeroen Blijlevens (born 1971), cyclist * Jeroen de Lange (born 1968), politician * Jeroen Delmee (born 1973), field hockey player * Jeroen Dijsselbloem (born 1966), politician * Jeroen Dubbeldam (born 1973), equestrian *Jeroen Duyster (born 1966), rower *Jeroen Groenendijk (born 1949), philosopher * Jeroen Hoencamp (born 1966), businessman *Jeroen Krabbé (born 1944), actor *Jeroen Lenaers (born 1984), politician *Jeroen Oerlemans (1970–2016), photojournalist * Jeroen Recourt (born 1970), politician *Jeroen Smits (born 1972), cricketer *Jeroen Paul Thesseling (born ...
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Iweta Rajlich
Iweta Rajlich (born Radziewicz, 16 March 1981) is a Polish chess International Master and Woman Grandmaster, multiple winner of Women Chess Championships of Poland. She married Vasik Rajlich, the author of Rybka, on 19 August 2006. Iweta is the tester for the program. The couple presently live in Warsaw, Poland Poland, officially the Republic of Poland, is a country in Central Europe. It is divided into 16 administrative provinces called voivodeships, covering an area of . Poland has a population of over 38 million and is the fifth-most populou .... References External links * 1981 births Living people Polish female chess players Sportspeople from Warsaw Chess International Masters Chess woman grandmasters World Youth Chess Champions {{Poland-chess-bio-stub ...
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Larry Kaufman
Lawrence Charles Kaufman (born November 15, 1947) is an American chess and shōgi player. In chess, he was awarded the title Grandmaster by FIDE for winning the 2008 World Seniors Championship (which he later retroactively shared with Mihai Suba). Kaufman had been previously awarded the title International Master in 1980. Background A longtime researcher in computer chess, Kaufman has made several contributions to chess-related works. He helped write the opening book for the pioneering program Mac Hack, co-developed Socrates II and its commercial adaptation, Kasparov's Gambit, edited the journal ''Computer Chess Reports'', and worked on many other research and commercial chess engines. He is also known for his work on computer chess engine Rybka 3, and several books and articles, includinThe Evaluation of Material Imbalances He helped develop the chess program Komodo with Don Dailey, with whom he had worked on the Socrates series of programs. After Dailey's death in 2013, Ka ...
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