Information from Convekta website:
Training course based on best chess studies, especially chosen for their instructive value. Contains over 950 greatest endgame compositions and 900 subsidiary exercises divided into 4 parts:
1) Studies on the topics;
2) Ending studies;
3) Gallery of Chess Compositions;
4) Various grades by difficulty level (ELO 1800-2400).
There is simply no substitute for the ease and quality of the studies presented, not to mention their eternal beauty.
A possibility to set up styles for study and game elements
Built-in chess playing program (may be started from any position)
Compatibility with top playing programs (Hiarcs 3-6, MChess Pro 5-7 etc)
Several languages supported: English, French, German, Russian and Spanish
No additional software required