Houdini Aquarium 2017 & Houdini PRO Aquarium 2017
Houdini Aquarium 2017 is a new powerful analysis, database and chess publishing tool, powered by the world's strongest chess engine Houdini 5 and 7-piece Lomonosov Tablebases.

Houdini Aquarium 2017 — $59.95 / €47.96
Houdini PRO Aquarium 2017, up to 128 cores and 128 GB of hash — $99.95 / €79.96

ChessOK.com » Christmas Offer in Effect till January 25
Christmas Offer in Effect till January 25 28 December 2011

Dear customers,
The Christmass deal for 25 training programs is still in effect, and will be active till January 25. Both download and CD/DVD versions receive 25% discounts! A perfect opportunity to buy presents for your friends and relatives.

We also remind you that our special offer is still in effect: Order any 2 programs that cost more than $25/€20 and get the 3rd program of your choice (within in the price range of the first two) for free.

See our shop’s “Special Offers” page for the full list of products receiving the Christmas deal.

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!

7-man Lomonosov Tablebases provide deeper-than-ever insight into chess endgame.

Download weekly chess database updates (containing 2000+ games) with latest tournaments and games in PGN and Chess Assistant format.

More »