Houdini Aquarium 2019 & ChessOK Aquarium 2023
ChessOK 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.com » New offer: buy 3 chess books for the cost of 2
New offer: buy 3 chess books for the cost of 2 19 September 2010
Order any two books costing more than $15/€12 in our online chess shop and get a third book of your choice (in the price range of the first two) absolutely free. ChessOK has a variety of books on different topics: tactics training, strategy, certain openings, biographies, etc.

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.

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