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 » New product: ChessOK Aquarium 2010
New product: ChessOK Aquarium 2010 26 November 2009

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.

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

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