Are the lines from your chess courses checked with computer program?
Yes, we do check our analysis with best computer programs (Rybka, Houdini).
At the same time we take into account a huge difference between human and computer “style”.
For instance, for computer it’s a great idea to grab a pawn and withstand opponent’s violent attack. For a human an opposite decision is the best in most cases.
This is only 1 example, while there are a lot of other situations (strategic positions, endgames, psychological factors etc) when computer’s suggestion does NOT fit to human chess very well.
The courses’ recommendations will help achieve the best PRACTICAL results; this is our main goal.