Deadly pins

Many winning combinations are based on pins.  A piece pinned when it is attacked cannot move without a more valuable piece behind it being captured. 

Of course, if the king is behind the piece that is pinned then that piece cannot move.

In the diagram both sides can take advantage of deadly pins. 

😎 Can you see how White can win material ?     View

😎 Can you see how Black can checkmate ?      View

😙  Three more to have a go at:

Puzzle 1      Solution          

Puzzle 2      Solution          

Puzzle 3      Solution