Houdini Aquarium 2019 & ChessOK Aquarium 2023ChessOK 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
Chess King Playing Zone
14 January 2016
Play online in your browser on chessking.com! Tournaments, clubs, customizable time controls, chess 960, head-to-head tournaments and full integration with the playerbase of ChessOK Playing Zone!
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!
Download weekly chess database updates (containing 2000+ games) with latest tournaments and games in PGN and Chess Assistant format.
- Aquarium support resource
- Opening Tree Mode
- Play Chess against Computer
- Endgame Nalimov Tablebases
- Download Chess Games (PGN)
- Chess Puzzles