Houdini Aquarium 2019 & ChessOK Aquarium 2021
ChessOK Aquarium 2021 is a new powerful analysis, database and chess publishing tool, powered by the world's strongest chess engines and 7-piece Lomonosov Tablebases.

ChessOK Aquarium 2021 €35.95
Houdini 6 Aquarium 2019 €53.95

ChessOK.com » New chess lessons
New chess lessons 11 July 2008
We are glad to tell you about new lecture of the ChessOK.com The lesson is called “Two Knights Game, 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6” has been prepared for you by GM Alexander Kalinin. This lesson is the small part of Encyclopedia of Middegame IV program.

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 »