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Rybka Aquarium 2011

The latest Aquarium 2011 IDEA interface coupled with the powerful updated Rybka 4.1 analysis engines gives you a complete chess playing program and more.

$59 Buy→ Free Shipping!

The advanced IDEA interface permits multiple analysis sessions; explore the critical subvariations, and analyze each in a separate window. Or study two or more unrelated games or positions.

Analyze, annotate, publish, search the rich game database, create video lectures! Comes with a huge game database. Supports Fritz/ChessBase files, Chess Assistant files, and standard PGN text files.

Includes 4.7 million game database, which updates continuously.

Play chess online: 1 year membership to the ChessOK playing zone included.

BONUS: Includes Openings Encylopedia 2011 [DVD], more than 8000 annotations by GM Kalinin, 500,000 expert evaluations of key positions, and 40 million Rybka evaluations of positions in every opening.

Compatible with Windows 7/XP/Vista.

Deep Rybka Aquarium 2011

The same Aquarium 2011 IDEA interface coupled with the multi-core Rybka 4.1 analysis engines, ideal for infinite analysis on a PC with a modern processor.

$99 Buy→ Free Shipping!

The same BONUS Openings Encyclopedia 2011, one year membership to ChessOK playing zone, and all the features of Aquarium 2011.

Buy Chess Software Online→

Chess Assistant 12 Pro

Chess Assistant 12 Professional Edition includes the strongest chess playing engine around, Houdini 2 Pro, Chess Openings Encyclopedia, a 4.7 million game database, and ChessOK Aquarium. It can an read ChessBase databases, PGN files, and zip files. Connect to ICC or the ChessOK playing zone, or hook up a DGT board. Supports standard chess engines, and endgame tablebases.

$119 Buy→ Free Shipping!

(starter version only $79)

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Rybka 4 Aquarium

The Aquarium interface coupled with the powerful Rybka 4 engines.

The advanced IDEA interface allows you to analyze several positions at the same time. Analyze each critical variation in a separate window. Play a practice game while analyzing sub-variations, or examine any positons you like at the same time.

4.6 Million game database included. Automatic updates will keep you current continuously! Publish to the web or chess blog with game playback, or to a text document with diagrams and figurine notation.
$59 Buy→ Free Shipping!

BONUS: You also get Openings Encylopedia 2010 [DVD], more than 8000 annotations by GM Kalinin, plus 500,000 expert evaluations of key positions.

Software for Advanced Players

RYBKA · Houdini · Chess Assistant
Chess Software · Chess Books Openings · Endings · Help
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