Attack a pinned piece (2)

A pin does not necessarily have to consist of two opposing pieces. It is also possible that a pinned piece cannot move because a checkmating square is attacked behind it. By attacking the pinned piece, material can then be gained. See example 1.

What do you have to do?

Look for a piece and a mating square on the same line. Found one? Then attack the opponent's pinned piece and win material.