Hi Mats, to answer your question (By the way, I wonder how people evaluate
the strenght of pieces. I see that they value them as '8.9', etc.) have
a look at: http://www.chessbox.de/Compu/schachansatz1_e.html and the
following pages like: http://www.chessbox.de/Compu/schachveri1_e.html .
Regards, Reinhard.