Most of the time, it will take more than one piece to execute a pin. The trick is not making it so obvious to your opponent. Your opponent should be constantly observing the positions of his pieces in relation to the range of attack of your pieces. If you control more space on the board than your opponent, your chances of executing a pin, skewer, or fork will be greater because his movement is limited.
Even if the execution requires a sacrifice, it should be a gain for you regardless if your pieces complement one another. There are several books to choose from to learn about executing such tactics. Personally, I learned from the series of books written by Yasser Seirawan.
~The Doctor
<p><p>In every book it says " find the pin " or Whatever. But what makes it work is there are always one or two supporting pieces to make it work. It seems you have in most cases got to have more than one piece to make it happen. Is there a book that focuses on this or do I just have to plod along with studying basic tactics? Stwils </p></p>