I really believe that it's necessary an analyzing board on this site. Is any body agree with me?

I'm in agreement with you, and that's why it's on my list of things to do.

Regards

Couldn't you use a "real" board and pieces?

>>  Couldn't you use a "real" board and pieces?
Of course not. May be you can not work on computer with out real board, but for me it's too hard.