In Mexico in September 2007 Zappa won a match against Rybka by a score of 51⁄2 - 41⁄2.[10] Many commentators had predicted a slew of draws based on the strength of the engines, but the differences in style provided an interesting match with several decisive games and many fighting draws. For some time, Zappa was considered one of the two strongest commercially available chess programs; see engine rating lists like CCRL[11] for current rankings. Some speculate that Zappa's more efficient SMP parallel search could make it stronger on enough processors.
In March 2008 Anthony Cozzie announced that "the Zappa project is 100% finished", which includes both tournaments and future releases.[12]
In June 2010, Zach Wegner announced that he had acquired the rights to maintain and improve the Zappa engine. The improved engine competed in the 2010 WCCC under the name Rondo, achieving second place behind Rybka before the latter's disqualification.[13][14][15]
Commercializationedit
Immediately after the successful WCCC 2005, there were plans to commercialize Zappa, but the first attempts with Vincent Diepeveen failed.[16] In April 2006,[17] a commercial version dubbed Zap!Chess running under the Fritz GUI was released by ChessBase.[18]
The version of Zappa that won the Zappa-Rybka match, Zappa Mexico, is sold by Shredder Computer Chess,[1] is compatible with Windows and Linux computers with up to 512 CPU cores and supports multipv analysis and Nalimov tablebases.
Notable gamesedit
Zappa vs Crafty, WCCC 2005
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Here Zappa played Re1, threatening Qxa5 Rxa5 Rxe8#; the game continued 43... Qf6 (if Rxe1 then Qg7#) 44. Rxe5 Qxe5 45. Ba2+ Kh8 46. Rd8 1–0.[19]
Zappa vs Crafty, WCCC 2005, 1-0 Despite Zappa being a relative newcomer, it managed to win the tournament and in general caused a bit of a stir in the computer chess community.[3]
^Rybka placed first but the program was found to have plagiarized Crafty and Fruit(the GPL'ed runner-up in 2005), and was stripped of its title. (Doggers, Peter. . Chess Vibes. Archived from the original on March 30, 2014. Retrieved 29 June 2011.)
^"Zach, is this true?". Retrieved 26 October 2013.
zappa, chess, zappa, chess, zappa, mexico, chess, engine, written, anthony, cozzie, graduate, student, university, illinois, urbana, champaign, program, emphasizes, sound, search, good, multiple, processors, earlier, versions, zappa, free, though, open, source. 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 1 ZappaDeveloper s Anthony Cozzie Zach Wegner since 2010 Initial releaseFebruary 2 2005 18 years ago 2005 02 02 Stable releaseZappa Mexico II 2009 14 years ago 2009 Operating systemMicrosoft Windows LinuxTypeChess engineLicenseProprietaryWebsitewww wbr acoz wbr net wbr zappa wbr Contents 1 History 2 Commercialization 3 Notable games 4 References 5 Sources 6 External linksHistory editZappa scored an upset victory at the World Computer Chess Championship in August 2005 in Reykjavik Iceland where it won with a score of 101 2 out of 11 2 3 4 and beat both Junior and Shredder programs that had won the championship many times 5 6 In the speed chess portion of the tournament Zappa placed second after Shredder 7 Zappa s other tournament successes include winning CCT7 on the Internet Chess Club 8 ICC and defeating Grandmaster Jaan Ehlvest 3 1 9 In Mexico in September 2007 Zappa won a match against Rybka by a score of 51 2 41 2 10 Many commentators had predicted a slew of draws based on the strength of the engines but the differences in style provided an interesting match with several decisive games and many fighting draws For some time Zappa was considered one of the two strongest commercially available chess programs see engine rating lists like CCRL 11 for current rankings Some speculate that Zappa s more efficient SMP parallel search could make it stronger on enough processors In March 2008 Anthony Cozzie announced that the Zappa project is 100 finished which includes both tournaments and future releases 12 In June 2010 Zach Wegner announced that he had acquired the rights to maintain and improve the Zappa engine The improved engine competed in the 2010 WCCC under the name Rondo achieving second place behind Rybka before the latter s disqualification 13 14 15 Commercialization editImmediately after the successful WCCC 2005 there were plans to commercialize Zappa but the first attempts with Vincent Diepeveen failed 16 In April 2006 17 a commercial version dubbed Zap Chess running under the Fritz GUI was released by ChessBase 18 The version of Zappa that won the Zappa Rybka match Zappa Mexico is sold by Shredder Computer Chess 1 is compatible with Windows and Linux computers with up to 512 CPU cores and supports multipv analysis and Nalimov tablebases Notable games editZappa vs Crafty WCCC 2005abcdefgh8 nbsp nbsp nbsp nbsp nbsp nbsp nbsp nbsp nbsp nbsp nbsp nbsp nbsp nbsp nbsp nbsp 877665544332211abcdefghHere Zappa played Re1 threatening Qxa5 Rxa5 Rxe8 the game continued 43 Qf6 if Rxe1 then Qg7 44 Rxe5 Qxe5 45 Ba2 Kh8 46 Rd8 1 0 19 Zappa vs Crafty WCCC 2005 1 0 Despite Zappa being a relative newcomer it managed to win the tournament and in general caused a bit of a stir in the computer chess community 3 References edit a b Zappa Mexico Retrieved 26 October 2013 13th World Computer Chess Championship IGCA Retrieved 26 October 2013 a b Cozzie Anthony WCCC 2005 Photojournal Archived from the original on 22 March 2012 Retrieved 26 October 2013 WCCC 2005 Reykjavik rpijl home xs4all nl Archived from the original on 26 October 2013 Retrieved 26 October 2013 Shredder IGCA Retrieved 26 October 2013 Junior IGCA Retrieved 26 October 2013 13th World Computer Chess Championship Blitz IGCA Retrieved 26 October 2013 CCT Results Retrieved 26 October 2013 Report Retrieved 26 October 2013 Cozzie Anthony Match vs Rybka Mexico 2007 Retrieved 26 October 2013 CCRL engine ratings http computerchess org uk ccrl 4040 Anthony Cozzie Netfiles uiuc edu Retrieved 2012 06 20 Rybka placed first but the program was found to have plagiarized Crafty and Fruit the GPL ed runner up in 2005 and was stripped of its title Doggers Peter Rybka disqualified and banned from World Computer Chess Championships Chess Vibes Archived from the original on March 30 2014 Retrieved 29 June 2011 Zach is this true Retrieved 26 October 2013 Zappa ICGA Cozzie Anthony Re Zappa Retail No UCI Retrieved 26 October 2013 World Computer Chess Champion Zap Chess ChessBase Retrieved 26 October 2013 Zap Chess ChessBase Retrieved 26 October 2013 Cozzie Anthony Great moves Retrieved 27 October 2013 Sources edit Zappa official website at the Wayback Machine archived September 18 2012 Newborn Monty 2011 Beyond Deep Blue Chess in the Stratosphere Springer ISBN 978 0 85729 341 1 Retrieved 26 October 2013 External links editOfficial website nbsp 13th World Computer Championship WCCC2005 at the Wayback Machine archived November 22 2005 Anthony Cozzie s Zappa page Java Viewer of Zappa s games Zappa at shredderchess Clash of the Titans Retrieved from https en wikipedia org w index php title Zappa chess amp oldid 1070078690, wikipedia, wiki, book, books, library,
