ChessOK Aquarium 2021 (download)
ChessOK Aquarium 2021 offers advanced analysis functions, game commenting, searching, powerful chess trees, playing, databases and much more.

CT-ART 5.0 - Complete Chess Tactics (download, Multiplatform 5x)
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.

CT-ART 6.0 (Windows only, DVD, multi-language)
Levels 1 - 9 [Rating 200-2400]; Tactics. Largest Tactics combo available with over 10,000 exercises for all chess players, from beginners to masters.

Chess Assistant 21 (download)
Chess Assistant 21 is a unique tool for managing chess games and databases, playing chess through the Internet, analyzing games, or playing chess against the computer.