I said in a former comment:
"That may be the only ugly thing of this game: that the immobilizer is too important. As far as my experience goes, he is the central piece in every successful attack. Immobilize the king and capture it with the chameleon. I rarely succeeded in winning in any other way."
Since then I got crashed by Francis Fahys in a variety of ways, so I retract that this is a feature of the game. It is just my own lack of fantasy