Houdini Aquarium 2019 & ChessOK Aquarium 2019
Houdini Aquarium 2019 is a new powerful analysis, database and chess publishing tool, powered by the world's strongest chess engine Houdini 6 and 7-piece Lomonosov Tablebases.

Houdini 6 Aquarium 2019 €53.95
ChessOK Aquarium 2019 €35.95

Black Friday Deals from ChessOK!

Black Friday with ChessOK! Best deals for the end of 2019! All offers are available through December 25.

Offer 1. Black Friday Software: Order Chess Assistant 20 or ChessOK Aquarium 2020 during the sale and receive 1-year subscription to all Chess King courses at Chess King Learn!

Offer 2. Black Friday BOOKS: Buy any three books and get a fourth one as a gift!

Offer 3. Black Friday LEARN: For a price of 2 years, get the Lifelong subscription to all Chess King courses at learn.chessking.com!
** Chess King Learn offers all courses you can find in our store. Study your favorite courses in the browser and on your mobile device, the progress is shared between platforms. You can also play online and against computer, play in tournaments, find a chess coach or be one!

Offer 4. Black Friday BONUS: If you order products for more than $120/€100, choose one download programs for up to $24/€20 as a bonus!

Offer 5. Black Friday 2+1: Purchase any 2 programs in our web shop and get a 3rd program of your choice (within the price range of the first two) for free!

Note: Specify the bonus products(s) you want to receive in the comments field when filling the order form.

ChessOK Aquarium 2020 Released – Analysis Powerhouse

The newest installment of ChessOK Aquarium is now available in our shop.

ChessOK Aquarium 2020 is an advanced chess analysis software featuring the world’s best analysis tools: Interactive Deep Analysis (IDeA), CAP analysis, chess trees etc.

ChessOK Aquarium 2020 comes with grandmaster level playing program, and can auto-download and install popular chess engines, including the strongest engine to date Stockfish 10.

You also receive the latest version of databases with 7 324 000 games in total and 1-year access to 7-man Lomonosov Tablebases

BONUS: While our Black Friday throuh Christmas sale is going, buy buy ChessOK Aquarium 2020 and get a 1-year subscription at Chess King Learn, giving you full access to all 60+ Chess King training courses!

Chess Assistant 20 Released – Professional Database Management Tool

Chess Assistant 20 is released!

Chess Assistant 20 is a unique tool for managing chess games and databases, playing chess through the Internet, analyzing games, or playing chess against the computer.

Includes Rybka 4 (also automatically downloads and connects Stockfish upon installation), databases with 7 324 000 games updated weekly, Chess Opening Encyclopedia and many other features.

BONUS: While our Black Friday throuh Christmas sale is going, buy buy Chess Assistant 20 and get a 1-year subscription at Chess King Learn, giving you full access to all 60+ Chess King training courses!

ECU Schools Internet Championship 2019
Fourth European School Team Chess Internet Championship 2019 has finished. Two team tournaments took place in November 13 (under 11 y.o.) and November 20 (under 17 y.o.), on the Chess King Play online platform. The struggle in the U17 age group was tight, and the first place was decided by just a couple tiebreaking points, but in the end the team of School 481 (Russia) won the invitation to play in the European School Championship 2020, Crete. School No.2101, also from Russia, won a similar invitation in the U11 group. Full results: ECU Schools Internet Championship 2019

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.

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