[Seve82]

Well I think that if ye put all yer troops to retreat and put one not so easy to kill commander to couple turns of hold b4 retreat one gets all his troops out of field unscathed even undeads. This doesn't ofcourse take into account enemy flyers, ranged spells or archers which would cause some casualties even on full reatreat order as all troops propably wont exit in one turn if defender has 100+ troops.

And that comment about conquering castle provinces surrounding provinces to prevent escape is absurd as this games scale is not that small. These provinces are not small areas. Thus you all ready have all areas surrounding castle and remnants of enemy castle defenders are retreating through them.

I also find fact that one can't put any pd b4 capturing castle bit odd as one allready has that province in his control.