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.

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.

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