Aquarium is a modern graphical user interface (GUI) designed for Rybka with full support for its features, including randomizer matches, persistent hash and sampled search.

Rybka Aquarium 2011 offers advanced analysis functions, game commenting, searching, powerful chess trees, playing, databases and much more.


Language versions: English, German, Spanish, Italian and French versions are available.

Short description:
•Rybka 4.1 engine - World Computer Chess champion and rating lists leader. Rybka 4.1 can be also used in Fritz and other chess programs
•Analyze and annotate your games with Aquarium's advanced analysis methods
•Databases with fast searches
•Powerful and fast chess trees
•Play against the computer
•Publish your chess text: Print, word processor or web
•Database: 4,700,000 games (up to April 1, 2011).
•Supports Chessbase/Fritz CBH format (read and convert), Chess Assistant CDP, PGN and EPD databases
•One year free membership in ChessOK Playing Zone.
•Full Windows 7 (32 & 64 bit) and Vista compatibility.

What's new in Rybka Aquarium 2011 compared to Rybka Aquarium 4:

•Updated Rybka 4.1 engine
•Up to date (April 2011) databases, trees and CAP evaluations
•IDeA is much faster and more intellectual
•Infinite analysis and IDeA are integrated to work together in the games
•Result of infinite analysis of different engines can be stored in different trees
•ChessOK Playing Zone client for playing chess by network is integrated into installation package. One year free membership is provided to Aquarium 2011 owners

System requirements: PC, 256 MB RAM, 4GB of free disk space, Windows 7/XP/Vista