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 » Seven new training courses are available on CD
Seven new training courses are available on CD 14 June 2010
How to Win Miniatures in Chess to learn how to mate in 2, 3 and 4 moves in opening — Elementary Chess Combinations to learn simple tactical methods — Chess Combinations for Club Players to learn advanced tactical methods
Chess: Simple Defense to learn how to defend your pieces from capturing — Chess: Easy Ways of Taking Pawns and Pieces to learn how to capture the pieces — Attack on the King I to learn how to attack the king in middlegame and mate in 2 — Attack on the King II to learn how to attack the king in middlegame and mate in 3 & 4 All courses cost €25.60 / $32.

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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