Changes

Some programs consider some tactical features in [[Evaluation|evaluation]], i.e. penalties for pieces [[En prise|en prise]] of either side <ref>[http://www.top-5000.nl/authors/rebel/chess840.htm Programmer Stuff] by [[Ed Schroder|Ed Schröder]], (see hanging pieces)</ref>. One may also consider too many [[Hanging Piece|hanging pieces]], even if not actually attacked but the opponent has resources to perform [[Double Attack|double attacks]]. [[Pin|Pinned pieces]] may subject of respective penalties in evaluation as well.