A Pin in Chess

A Pin in the World of the Animals

This film on youtub is for children: https://www.youtube.com/watch?v=TYklMREHD-s

A Pin in Chess

A pin is a tactic in which a defending piece cannot move out of an attacking piece's line of attack without exposing a more valuable defending piece. Moving the attacking piece to effect the pin is called pinning. The defending piece restricted by the pin is described as pinned. Only a piece that can move any number of squares along a horizontal, vertical, or diagonal line (i.e. a bishop, rook, or queen) can pin. Any piece can be pinned except the king. The pin is one of the most powerful chess tactics.

And here are the TOURNAMENTS:
- https://www.chess.com/tournament/a-pin-in-chess-1
- https://www.chess.com/tournament/a-pin-in-chess-2