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

Video Interview with Vasik Rajlich
There is no need to introduce Rybka to ChessOK.com visitors, who have been using it as a part of the Rybka Aquarium package. However, the man behind the strongest chess engine in the world, Vasik Rajlich, is probably little known outside the circle of computer chess enthusiasts. The following interview with Vas, conducted by Nelson Hernandez, should be of great interest to every Rybka user who wants to know Vas’ views and where he is heading with the next Rybka versions. We are at crossroads in the chess engine market. What will the changes mean for the serious chess player? Read the rest of this entry »

New Training Software: Opening Lab
We are glad to inform you, that we have a new training software available at our shop: Opening Lab. Opening Lab is a fine opening manual. It features a theoretical review of all the chess openings, which are illustrated by instructive games of the greatest chess players. Each opening variation is supplied with evaluations and characteristics of key moves. The history of the variations’ development is described, as well as their current status. Opening Lab for download — $25 / €18 Opening Lab on CD — $32 / €25.6

Various Updates
  • Aquarium 2010 (version 4.0.2) update has been released just recently. Download — 7.5mb.
  • German language pack for Aquarium 2010 is released. Download
  • Rybka Opening book by Jeroen Noomen has been updated to run in Aquarium 2010 package. In case of any problems you need to redownload and reinstall the updated version of the book. You can download the updated book from there using your serial key.
  • Peshka training interface has been updated fixing a couple of bugs and allowing course updates (only download versions). You can download the updated interface from there. After downloading reinstall Peshka. Read more in our FAQ.
Read below for more information about updates. Read the rest of this entry »

London Chess Classic
London Chess ClassicLondon Chess Classic will be held London, Great Britain from December 8th to 15th December. Participants include: Magnus Carlsen (ELO 2801), Vladimir Kramnik (ELO 2772), Hikaru Nakamura (ELO 2715), Nigel Short (ELO 2707), Michael Adams (ELO 2698), Ni Hua, Luke McShane and David Howell. Average ELO: 2697. Time control: 2 hour for 40 moves + 1 hour to 20 moves + 15 min and 30 sec/move. Free day: December 11th. All rounds except for the last start at 14.00 GMT. Last round starts at 12.00 GMT ChessOK is going to broadcast all games of this tournament with Rybka Aquarium commentary. Games: Round 1 [download PGN], Round 2 [download PGN], Round 3 [download PGN], Round 4 [download PGN], Round 5 [download PGN], Round 6 [download PGN], Round 7 [download PGN] [–table–]

Interactive Deep Analysis (IDeA) With Rybka Aquarium 2010
One of the biggest changes in Rybka Aquarium 2010 is the greatly improved Interactive Deep Analysis (IDeA). Many players were happy with the possibilities offered by IDeA in Rybka 3 Aquarium, but I’m afraid that it will look like a dinosaur compared to the new version. It provides better automatic analysis and much more effective ways to control the analysis process and the shape of the analysis tree. I’m sure that many serious players will find that the new and improved IDeA is an essential tool to stay competitive.

New product: ChessOK Aquarium 2010
The differences of ChessOK Aquarium 2010 compared to (Deep) Rybka Aquarium 2010+: 1) There is no Rybka 3. Instead it comes with Rybka 2.3.2a. If you already own Rybka 3 you may link and use it. 2) No Chess Assistant 10 bonus. 3) Costs less: — ChessOK Aquarium for download — $39.95/€31.96. — Upgrade version for Rybka 3 Aquarium customers — $29.95/€23.96.

New Products Available: CT-ART 4.0, Elementary Checkmates I & II
3 new programs are available for ordering on ChessOK.com from today. Those are: CT-ART 4.0, Chess for beginners: Checkmates I, Chess for beginners: Checkmates II.

Read the rest of this entry »

Rybka Aquarium 2010+
In view of the changes in Rybka author Vasik Rajlich’s plans about the date of Rybka 4’s launching (read his message here) our plans concerning the Rybka Aquarium 2010+ package respectively have also been altered! Customers who have already ordered Rybka Aquarium 2010+ in accordance with our previous announcement can either get their money back or receive a new Rybka Aquarium 2010+ kit. We are trying to include into Rybka Aquarium 2010+ the best possible substitution of the Rybka 4 engine.
1) Now Rybka Aquarium 2010+ / Deep Rybka Aquarium 2010+ will include Rybka 3/Deep Rybka 3.
2) Super Bonus. Instead of a right for a free upgrade to Rybka 4 / Deep Rybka 4 you will get a free copy of a professional chess database program Chess Assistant 10 along with Aquarium 2010+! Every buyer of the Rybka Aquarium 2010+ package gets a bonus of Chess Assistant 10 starter package, and a buyer of Deep Rybka Aquarium 2010+ gets Chess Assistant 10 Professional package. For the DVD-version of Rybka Aquarium 2010+ the Chess Assistant will be delivered on an additional DVD enclosed into a box. This offer presents a unique opportunity to buy those two programs at the lowest possible price.

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