Version: (using KDE 4.1.3) Installed from: Ubuntu Packages On Lieutenant Skat, playing with Klondike rules, I think one should be able to remove cards from the foundation. Meaning from top of the aces pile. I tried to search this from some official rule sets. But I didn't find anything. But this is how I'm used to play it. It maybe some easing setting rather than official rule... But maybe you could at least provide an option for this kind of rule?
I'm assuming your referring to KPat and not LSkat, right. :) KPat actually does support moving cards down from the foundations, but only when set to "Draw 1". This is a tricky situation for all solitaire games, because solitaire games are informal by nature and learned informally. As a result every game has dozens of variants. Supporting them all in a single application quickly gets very complicated. This is especially true of KPat, as both the solver and the statistics tracking would have to be aware of the variations as well.
See Parker's comment