Lucas

In the next update there will be an option to choose it.

Thanks, I will update the engine in the program.

Thanks for the ideas. I guess there must be a lot of programmes that make a manageable printout of a game. Maybe next year I'll get around to working on...

This utility is already included.

In a virtual machine with Debian, I have tested and it has let me assign Lucas Chess, as a program to be launched when double clicking on a pgn.

You are right, support is only given when the full path is indicated.

Lucas Chess is a graphical program designed in Windows and I try to make it work with the same possibilities in Linux, that can be installed and executed from a...

How about a kibitzer of the candidate type?

It is likely that I have not understood what the real problem is. But, are you talking about this? 

I don't know a good way to implement this. With left click on the first move in each variation, the position on the board is changed.