Houdini Aquarium 2019 & ChessOK Aquarium 2023ChessOK Aquarium 2023 is a new powerful analysis, database and chess publishing tool, powered by the world's strongest chess engines.
ChessOK Aquarium 2023 €39.96
Houdini 6 Aquarium 2019 €53.95
ChessOK Aquarium 2012 is available for preorder!
If you already own any previous version of Houdini 2 Aquarium, Rybka Aquarium or ChessOk Aquarium, you can upgrade it for just 60% of the full price!
If you are interested in the upcoming releases of Chess Assistant 13 and Houdini 3 Aquarium (also available for preorder), you may want to read about differences between the products and packages on the What’s the Difference page.
Study chess online on Chess King Learn! Time-proven training courses, thousands of examples and exercises.
Start playing right now in your web browser on Chess King Playing Zone! Teams, tournaments, training, analysis and much more!
Download weekly chess database updates (containing 2000+ games) with latest tournaments and games in PGN and Chess Assistant format.
- Aquarium support resource
- Opening Tree Mode
- Play Chess against Computer
- Endgame Nalimov Tablebases
- Download Chess Games (PGN)
- Chess Puzzles