Software
ChessOK's software catalog covers the need of every chess player, from the absolute beginner to the strongest grandmasters. We develop software for all aspects of training, studying and improving your chess.
Featured Products - Software

ChessOK Aquarium 2023 offers advanced analysis functions, game commenting, searching, powerful chess trees, playing, databases and much more.

Levels 1 - 9 [Rating 200-2400]; Tactics. Largest Tactics combo available with over 10,000 exercises for all chess players, from beginners to masters.

CT-ART is the world's most recognized and effective chess tactics course. The new CT-ART 5.0 combines three levels of chess tactics on three discs.

Chess Assistant 23 is a unique tool for managing chess games and databases, playing chess through the Internet, analyzing games, or playing chess against the computer.
Monthly Specials For June

Training Package for Club Players lets you learn and improve various chess sklils in opening, middlegame, endgame, tactics and strategy.

You have to find the most important moves. Once you're solving a problem and proposing a wrong move. (ELO 1600-2200). English and Spanish versions available.

Levels 6 - 9 [Rating 1600-2400]; Endgame. 1050 examples on various endgame themes.

Levels 6 - 9 [Rating 1600-2400]; Endgame. 2450 exercises on 500 endgame themes.