Buy 3 chess training programs for the price of 2
Order any two training programs in our online chess shop and get a third training program absolutely free. If your order is more than $120 / €100 Euro, you will get additional present.

New CT-ART 5.0 combines three excellent courses guiding you from beginner to advanced level.

ChessOK.com » Aquarium 4.0.7 update with Rybka 4.1 released
Aquarium 4.0.7 update with Rybka 4.1 released 22 March 2011

We are glad to inform you that Aquarium 4.0.7 update is released.

There are no major visible changes in it. But there are a lot of fixes inside. We were working hard and about a hundred of different fixes were done to provide this release.

Two important issues that were solved are:

  1. Minimax process in IDeA became times faster. This is especaily visible when you operate with a lot of positions (like 100 000 and more).
  2. Game analysis with large time control worked too fast in previous builds and didn’t provide expected quality.

Aquarium update package includes update of Rybka 4 engine to Rybka 4.1 engine with a number of bugs fixed in it.

The links:

Full update package from any 4.* version up to 4.07, build 413 with Rybka 4.1.
29 MB
https://www.chessok.com/download/Aquarium/4/4_07/AquariumUpdate_407.exe

Installation program searches for previous Rybka 4 versions and adds correspondent Rybka 4.1 files. The engines are not linked to Aquarium automatically. This should be done manually.

Full Aquarium 4.0.7 package with Deep Rybka 4.1 instead of Deep Rybka 4.
67 MB

https://www.chessok.com/download/Aquarium/4/4_07/DeepRybkaAquarium4Setup.exe

A proper serial number is essential to install. (Databases are not included into the package)

Full Aquarium 4.0.7 package with Rybka 4.1 (1 CPU) instead of Rybka 4.
65 MB
https://www.chessok.com/download/Aquarium/4/4_07/RybkaAquarium4Setup.exe
A proper serial number is essential to install. (Databases are not included the package)

If you need only Rybka4 -> Rybka4.1 update (for Chess Assistant and other GUIs) use the following link.
2 MB
https://www.chessok.com/download/Aquarium/4/4_07/Rybka41Update.exe

If you have already Aquarium 4.0.6 or Aquarium 4.0.7beta installed and you don’t want to perform update installation (some of your minor settings can be reset to default after installation) you may just change previous Aquarium.exe to a new one.
It is direct link to Aquarium.exe, 4.0.7, build 413 file
20 MB
https://www.chessok.com/download/Aquarium/4/4_07/Aquarium.exe

The same file in zip-archive. You need to unpack it to Aquarium folder
9 MB
https://www.chessok.com/download/Aquarium/4/4_07/Aquarium_exe.zip

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 »