How can I identify Zugzwang opportunities? How can I identify Zugzwang opportunities, not only for myself, but for my opponent.  Often times, I run into Zugzwang, whether it is for my benefit or not, by accident.  Is this just a matter of looking at all the possible moves my opponent and I can make or is there more to it?
Zugzwang positions happen naturally as you work to improve your own position by taking good moves away from your opponent.  Eventually, when every move is bad (or useless), your opponent will be in Zugzwang.  You'll probably find these positions more often in closed games.  Tigran Petrosian was a master at balling his opponents up so they'd run out of moves.

Here's a recent thread where IMO Black is in zugzwang:  Why did Black resign this game?