Eric, the main betatester of the programme, has written a guide, which allows you to go deeper into the use of Lucas Chess. It is written in French, but in this day and age, it is not a big challenge to translate it into your own language. As Eric points out: Lucas Chess is an easy to use program. But it hides some features that are more complex to understand and the following pages try to clarify them. Link to the PDF Link to Lucas Chess documents