Someone earlier mentioned about having the king move to the corner rather than any edge. Here http://www.ludoteka.com/tablut-en.html is an example of the game played at the corners rather than the edges. As you can see the rules of capture become slightly more complex, but perhaps it could be another Tablut variant at BrainKing?
(hide) Play a game in real time with an online opponent! For this to be possible, you and your opponent have to select the action "Move and stay here" as default and then reload the page with the F5 key! (TeamBundy) (show all tips)