A free program for Android, by Chess King.

This is the course aimed at club and intermediate players and presents the theory and playing hooks in the most sharp and deciding variants of the Caro-Kann Defense.

This course includes about 150 examples and about 350 exercises to solve.

The program acts as a coach who gives tasks to solve and helps to solve them if you get stuck. It will give you hints, explanations, and show you even striking refutations of the mistakes you might make.

This course includes a free part, in which you can test the program.

The theory presented in this course is based on actual examples and allows you to understand the methods used in the game. The theory is presented in an interactive way, which means you can not only read the text of the lessons, but also make moves on the board and work out unclear moves on the board.