Rybka

Rybka is a computer chess engine developed by International Master Vasik Rajlich. On the 2006 june 8 SSDF rating list, Rybka 1.2 is placed clear first (also on CEGT, SCCT and CSS rating lists), with a 2931 rating, far from his concurrents Shredder, Fritz and Fruit.

Name

The word rybka means little fish in the Czech language. 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 :-)

Team

Vasik Rajlich is the author of Rybka. Iweta Radziewicz is the main Rybka tester. Jeroen Noomen is the author of its opening book.

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.

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.

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.

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.

http://www.rybkachess.com