Houdini Aquarium 2019 & ChessOK Aquarium 2023
ChessOK 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

ChessOK.com » New training packages
New training packages 19 November 2010
Modern Chess Opening Set (vol.1-7) is a compilation of seven volumes of Modern Chess Opening series, covering almost all chess openings. The series provide detailed classification and contain a lot of training material. For $109 you get 7 solid training courses, saving as much as $66!
Training Package for Beginners consists of five educational programs: Elementary Checkmates I, Elementary Checkmates II, Easy Ways of Taking Pieces, Chess Tactics for Beginners and Complete Chess Course, covering every phase or aspect of chess from Opening to Endgame. Altogether Chess Training Package for Beginners includes more than 125,000 positions to be solved for chess players with ELO rating from 300 to 1500 for only $75.

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