Dealing with pins
Pin tactics occur when an attacked piece cannot move without exposing an even more valuable piece (or target) behind it. Mastering pin tactics is an important step in improving your tactical skill - Chessfox ... read more
In the diagram - White to move
Black has pinned White's pawn on g2.
If the pin wasn't there White could checkmate with g3
What can White do about it ?
Video tutorial Chess tactics - The Pin 6:47 min