A two verses one situation where the tyrant is inside a seemingly unseigable castle.
Two secret accesses to the keep, mountains which separate the players, a river system, iron resource piles in locations which may allow the tyrant to control production. Massive resource deposits, tyrants food production locations are close to the other two players.
Update: Fixed bugs.
King who had no keep but lived in the left top corner is now gone. So is his stock pile which was next to the main keep.