Zappa Mexico Ii Chess Engine

  • Zappa mexico II; dll. Anda dapat membuat turnamen sendiri antar chess engine, dan membuktikan chess engine mana yg terkuat. Houdini 3 Pro, Deep Rybka 4.1, Deep.
  • Zappa is a chess engine, or a program that plays chess. It is similar to Deep Blue - only much better - and is best known for its good parallel speedup. It has competed in many computer chess tournaments with its best result coming at the World Computer Chess Championship in 2005, where it took first place with the score of 10.5 / 11.
(Redirected from Zappa (Chess engine))

Just doesn't apply to Zappa Mexico II as, in reiteration, Zappa X (regardless of which Zappa X) served as an experimental engine before the final, finished product: Zappa Mexico II. Keep in mind, after the final release of Zappa Mexico II (January, 2008), Anthony Cozzie retired due to higher academic ambitions. Zappa Mexico II: ½ ½ ½ 0 x: 1 ½ ½ ½ 1 ½ 5½ 4. Engine W D L P 40; 1. TCEC - Computer Chess Broadcast.

Zappa
Developer(s)Anthony Cozzie, Zach Wegner (since 2010)
Initial releaseFebruary 2, 2005; 16 years ago
Stable release
Operating systemMicrosoft Windows, Linux
TypeChess engine
LicenseProprietary
Websitewww.acoz.net/zappa/

Zappa, Zap!Chess or Zappa Mexico, is a UCIchess 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]

Mexico

History[edit]

Zappa scored an upset victory at the World Computer Chess Championship in August, 2005, in Reykjavík, 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 GrandmasterJaan 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[edit]

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 games[edit]

abcdefgh
88
77
66
55
44
33
22
11
abcdefgh
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]

References[edit]

  1. ^ ab'Zappa Mexico'. Retrieved 26 October 2013.
  2. ^'13th World Computer Chess Championship'. IGCA. Retrieved 26 October 2013.
  3. ^ abCozzie, Anthony. 'WCCC 2005 Photojournal'. Archived from the original on 22 March 2012. Retrieved 26 October 2013.
  4. ^'WCCC 2005 Reykjavik'. rpijl.home.xs4all.nl/. Archived from the original on 26 October 2013. Retrieved 26 October 2013.
  5. ^'Shredder'. IGCA. Retrieved 26 October 2013.
  6. ^'Junior'. IGCA. Retrieved 26 October 2013.
  7. ^'13th World Computer Chess Championship (Blitz)'. IGCA. Retrieved 26 October 2013.
  8. ^'CCT Results'. Retrieved 26 October 2013.
  9. ^'Report'. Retrieved 26 October 2013.
  10. ^Cozzie, Anthony. 'Match vs Rybka - Mexico 2007'. Retrieved 26 October 2013.
  11. ^CCRL engine ratings: http://computerchess.org.uk/ccrl/4040/
  12. ^'Anthony Cozzie'. Netfiles.uiuc.edu. Retrieved 2012-06-20.
  13. ^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.)
  14. ^'Zach, is this true?'. Retrieved 26 October 2013.
  15. ^'Zappa'. ICGA.
  16. ^Cozzie, Anthony. 'Re: Zappa Retail: No UCI?'. Retrieved 26 October 2013.
  17. ^'World Computer Chess Champion: Zap!Chess'. ChessBase. Retrieved 26 October 2013.
  18. ^'Zap!Chess'. ChessBase. Retrieved 26 October 2013.
  19. ^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. ISBN978-0-85729-341-1. Retrieved 26 October 2013.

External links[edit]

  • Official website
  • 13th World Computer Championship (WCCC2005) at the Wayback Machine (archived November 22, 2005)
Retrieved from 'https://en.wikipedia.org/w/index.php?title=Zappa_(chess)&oldid=1032540880'

Introduction

Zappa is a chess engine, or a program that plays chess. It issimilar to Deep Blue - only much better - and is best known for itsgood parallel speedup. It has competed in many computer chesstournaments with its best result coming at the World Computer ChessChampionship in 2005, where it took first place with the score of 10.5/ 11. Like Fritz or Shredder, it is a standard chess engine, which intechnical terms means it is a brute force alpha-beta searcher with aheuristical evaluation. You can buy a copyhere.

Retirement

The Zappa project is 100% finished. This includes both tournamentsand future releases.

Zappa Mexico Ii Chess Engine

Tournament Results

Zappa Mexico Ii Chess Engineering

  • CCT10 1/26/2008: Zappa scored 5.0/7 to take third place. Book: random. Games
  • Match with Rybka 9/18/2007: Zappa scored 5.5 / 10 to win the match. Book: Erdogan Günes GamesReport
  • WCCC 2007 6/11/2007: Zappa scored 9 / 11 for second place. Book: Erdogan Günes Games
  • ICT 7 5/18/2007: Zappa scored 7 / 9 for second place. Book: Erdogan Günes. Games
  • WCCC 2006 6/1/2006: Zappa scored 7.5 / 11 for fourth place. Book: Erdogan Günes. GamesReport
  • CCT8 2/26/2006: Zappa scored 6.5 / 9 for second place. Book: random. Games
  • Paderborn 2006 12/27/2005: Zappa scored 4.5 / 7 for divided second place. Book: Erdogan Günes. Games
  • 25th Dutch Open 11/13/2005: Zappa scored 7.5 / 9 for first place. Book: Erdogan Günes. GamesReport
  • WCCC 2005 8/21/2005: Zappa scored 10.5 / 11 for first place. Book: Erdogan Günes. GamesReport
  • Match vs GM Ehlvest 7/09/2005: Zappa scored 3 / 4 to win the match. GamesReport
  • CCT7 2/13/2005: Zappa scored 7.5 / 9 for first place. Book: Arturo Ochoa. Games
  • CCT6 1/31/2004: Zappa scored 7 / 9 for third place. Games
  • CCT5 1/12/2003: Zappa scored 5 / 9 for seventeenth place. Games
Overall, Zappa's standard time tournament record stands at 67 wins, 37 draws, and 11 losses (74.3%, a record most professional sports teams would envy) with three titles, one world championship, two match victories, and 10000$ in prize money. Aside from the for-fun internet tournaments (CCT), Zappa has never lost a game to anyone or anything not named Rybka. All Games

Genealogy

Zappa is not named for the great Frank Zappa, or at least not directly. I got the name from Austin Powers 2, which has a scene where Dr. Evil talks about how he has divided his moon base into 'Moon Unit Alpha' and 'Moon Unit Zappa', a pun on Frank's quixotically named daughter Moon Unit. I have never listened to his music, although I like many of his quotes. Interestingly, Frank liked chess and used to play with the band quite a bit.

Mexico

Features

Zappa Mexico can be used on Windows or Linux computers with up to 512 CPUcores. Unfortunately, the parallel implementation relies on sharedmemory, so you cannot hook two computers together with an ethernetcable and use them together, unless you are willing to give SGIseveral hundred thousand dollars. Zappa Mexico also supports multipvanalysis, Nalimov tablebases, and as a UCI engine it can be used inmost of the standard chess GUIs. To the best of my knowledge, not asingle computer has caught fire while running Zappa.

Great Moves

Unfortunately in computer chess games most of the beautifulcombinations occur in the notes. Chess engines are simply so strongtactically that they almost never fall into traps. Still, here are afew tricks from the good old days.


1rb2rk1/4R1p1/1pqn1pBp/3p4/5Q2/1NP3PP/6PK/4R3 w - - 0 30

From Zappa-Searcher, CCT6. Here Be8 wins the exchange, but R1e6!!wins overwhelmingly. The game continued 30. Re6 Bxe6 31. Nd4 Qc4 32.Qxd6 Bxh3 33. Kxh3 Kh8 35. Nf5 and it is obvious Zappa's attack is toostrong for Black to survive.


4r1k1/3R3p/p5p1/n3r1q1/8/P1Q5/1P6/KB1R4 w - - 0 43

From Zappa-Crafty, 2005 World Computer Chess Championship inReykjavik. Here Zappa played the elegant Re1! (Rxe1 Qg7, and Whitethreatens Qxa5 Rxa5 Rxe8) and the game continued 43... Qf6 44. Rxe5Qxe5 45. Ba2 Kh8 46. Rd8! 1-0. This is a relatively easy combinationfor a modern program, but it's still pretty.

Logos

Anthony Cozzie
 David Dahlem
David Dahlem
 Wilhelm Hudetz
Jim Ablett
 Stefan Persson
Graham Banks
 Benjamin Händel

Credits

Mexico

Zappa is written entirely by me, Anthony Cozzie,but I have received a great deal of help from (in no particular order)Arturo Ochoa, Bob Hyatt, Bruce Moreland, Ed Schroeder, Erdogan Günes,Gunther Simon, Harvey Williamson, Jay Urbanski, Marek Baron, StefanMeyer-Kahlen, Tord Romstad, Will Singleton, Vincent Diepeveen, VolkerPittlik, and Volker Richey.

Download

Zappa Mexico Ii Chess Engine

Zappa Mexico is commercial. You can buy a copy here. However, you candownload an older version for free. It is a command line programwithout a graphical chessboard, so if the idea of typing commands byhand does not appeal to you, you will need to download a GUI. Arena is free; the commercialChessbase (Fritz), Shredder, and ChessPartner GUIs should also work.For all you old-schoolers, Zappa does support WB2 and will work inXBoard or WinBoard. If you want to run engine-engine matches, youwill also need to supply an opening book.

  • Zappa 1.1 archive [all platforms] 924KB

Links

  • Arena A free GUI for chess engines.
  • CCC Originally this was a forum for programmers. Now it is more diverse, with a lot of enthusiasts.
  • CEGT and CCRL are the two big composite chess engine rating lists. You can find out how well Zappa does against other engines here.
  • Crafty Dr. Robert Hyatt's open source chess engine.
  • Glaurung Tord Romstad's open source chess engine.
  • RWBC Gunther Simon's tournaments
  • WBEC Leo Dijksman's tournaments
  • Winboard Forum A forum dedicated to the Winboard GUI.
  • XBoard and WinBoard Tim Mann's chess interfaces.