Pin & double attack

You already know: a pinned piece is a worthless defender. And you're going to make clever use of that in this lesson. This time with a double attack.

Take a look at the examples to see how this works.

In the first example, White creates a double attack from a square that is defended by the pinnend piece (the pinned piece cannot defend else the king would be in check).

In the second example, White attacks a loose piece plus a mating square that is defended by a pinned piece. 

What do you have to do?

Win material by exploiting a pin with a double attack.

Follow these steps:

1. Find the pin;
2. Find the piece/square that is protected by the pinned piece;
3. Create a double attack:
   * from a square 'protected' by the pinned piece.
   * on a piece/square/king PLUS a square/piece defended by the pinned piece.