Rybka is a computer chess engine by International Master Vasik Rajlich. As of July 2006, Rybka is top-rated in the SSDF, CEGT, SCCT, and CSS rating lists.^[1]. As of June 10, 2006, Rybka fully supports both single processor and SMP systems. Software development is the translation of a user need or marketing goal into a software product. ... Born in born Czechoslovak, Vasik Rajlich is the author of Rybka, the strongest chess playing program in 2006 for a single core Intel or AMD cpu. ... A software release refers to the creation and availability of a new version of a computer software product. ... November 10 is the 314th day of the year (315th in leap years) in the Gregorian Calendar, with 51 days remaining. ... 2006 (MMVI) is a common year starting on Sunday of the Gregorian calendar. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Microsoft Windows is a family of operating systems by Microsoft. ... Chess is an abstract strategy board game and mental sport for two players. ... A software license is a legal agreement which may take the form of a proprietary or gratuitous license as well as a memorandum of contract between a producer and a user of computer software. ... This page as shown in the AOL 9. ... Chess is an abstract strategy board game and mental sport for two players. ... The title International Master is awarded to outstanding chess players by the world chess organization FIDE. The title is open to both men and women. ... Born in born Czechoslovak, Vasik Rajlich is the author of Rybka, the strongest chess playing program in 2006 for a single core Intel or AMD cpu. ... The Swedish Chess Computer Association (Svenska schackdatorföreningen (SSDF) in Swedish) is an organization that tests computer chess software by playing chess programs against one another and producing a rating list. ... CEGT is an acronym which stands for Chess Engines Grand Tournament External links Official site the CEGT rating list ... Symmetric Multiprocessing, or SMP, is a multiprocessor computer architecture where two or more identical processors are connected to a single shared main memory. ...

Name

The word rybka means little fish in the Czech language, where it is pronounced /'rɪpka/. Vasik Rajlich was once asked in an interview by Alexander Schmidt, "Did you chose the name Rybka because your program always slipped out of your hands like a little fish?", and replied "As for the name Rybka - I am sorry but this will remain my private secret :-)"^[2] Czech (čeÅ¡tina []) is one of the West Slavic languages, along with Slovak, Polish, Pomeranian (Kashubian), and Lusatian Sorbian. ... For information on how to read IPA transcriptions of English words see here. ...

Team

Iweta and Vasik Rajlich

Vasik Rajlich is the author of Rybka. Iweta Rajlich is the main Rybka tester. Jeroen Noomen is the author of its opening book. Christoph Kling is the Rybka website designer. Image File history File links Iweta_and_Vasik_Rajlich-01. ... Image File history File links Iweta_and_Vasik_Rajlich-01. ... Born in born Czechoslovak, Vasik Rajlich is the author of Rybka, the strongest chess playing program in 2006 for a single core Intel or AMD cpu. ... Iweta Rajlich, 2006 Iweta Rajlich (b. ... Opening books, which discuss chess openings, are by far the most common type of literature on Chess play. ...

Tournament participations

From the 27th to 30th December 2005, Rybka participated in the 15th International Computer Chess Championship in Paderborn, Germany. Rybka won the tournament with 5 1/2 points of 7, ahead of the engines Gandalf, Zappa, Spike, Shredder and Fruit. Paderborn is a city in North Rhine-Westphalia, Germany, capital of the Paderborn district. ... Zappa is a chess engine written by Anthony Cozzie, a graduate student at the University of Illinois at Urbana-Champaign. ... Shredder is a very strong chess program developed in Germany by Stefan Meyer-Kahlen in 1993. ... Fruit is a chess engine developed by Fabien Letouzey. ...

On the CCT8 from the 25th to 26th February, Rybka won with a score of 8/9 and going undefeated.

In the April 2006 PAL/CSS Freestyle main tournament, an unaided Rybka 1.1 took the first place. In the final tournament, Rybka 1.1 finished in second and third place, behind Hydra. Hydra is a chess machine, designed by a team with Dr. Christian Chrilly Donninger, Ulf Lorenz, GM Christopher Lutz and Muhammad Nasir Ali. ...

In the 6th Leiden ICT in May 2006, Rybka won with a score of 8.5/9, ahead of Sjeng, Gandalf and Shredder.

At the 14th World Computer-Chess Championship in Turin, Italy in May 2006, Rybka, playing under the name Rajlich, finished second, tied with Shredder, after Deep Junior, the winning 2006 World champion. World Computer Chess Championship (WCCC) is an annual event where computer chess engines compete against each other. ... Shredder is a very strong chess program developed in Germany by Stefan Meyer-Kahlen in 1993. ... Deep Junior is a computer chess program authored by the Israeli programmers Amir Ban and Shay Bushinsky. ...

In the June 2006 PAL/CSS Freestyle main tournament, the Rybka team, playing under the handle Rajlich, tied for first place with Intagrand. In the final, the Rybka team took clear first place, a point ahead of the field.

In the 2006 Dutch Open Computer Championships, Rybka 2.2 finished in first place with a perfect score of 9/9. ^[3]

Extras

• Rybka WinFinder

Rybka WinFinder v2.2 was also released along with Rybka 2.2 on November 10, 2006. It is a highly tactical chess engine which is very good in searching winning moves (if present). Hence, the name Win Finder. It has some bugs which the author will be correcting in the next release.

• Rybka 2.2 update ^[4]

Rybka 2.2 update is planned to be release on December 04, 2006. The update will contain:

1) Full stability
2) Some modest efficiency improvements in the multi-processor version
3) Performance bugfix in the multi-processor version
4) Cosmetics
5) New engine parameters: Display Current Move, Display PV Tips, CPU Usage, Win Percentage to Hash Usage

Future release plans

• Rybka 2.3 UCI January 15, 2007

References

1. ^ Telia, Husvankempen, Sedatchess, computerschach.de
2. ^ Uciengines.de
3. ^ Rybkachess.com
4. ^ [1]

External links

• Official site
• Official Forum
• the 15th International Computer Chess Championship
• the CEGT rating list
• Rybka's games from ChessGames.com