Mate or Stalemate
When the defender has almost no moves and the defending king almost no squares
this can be a sign for a coming mating attack or a stalemate defense:
The bishop in the prison
Same colored bishop endings have a large drawish tendency, but the defending bishop
should be active:
The bishop in the prison – 2
When pieces have no room the alarm bells should be ringing:
Zenyuk's Surprise
Even a bishop has to be careful not to be dominated by a knight and pawns:

Karsten Müller in ChessBase Magazine
Do you like these lessons? There are plenty more by internationally renowned
endgame expert Dr Karsten Müller in ChessBase Magazine, where you will
also find openings articles and surveys, tactics, and of course annotations
by the world's top grandmasters.
Click
to go to the ChessBase Magazine page
Apart from his regular columns and video lectures in ChessBase Magazine there
is a whole series of training DVDs by Karsten Müller, which are bestsellers
in the ChessBase Shop.
