Pin (chess) Pin (chess) In chess, a pin is a situation brought on by an attacking piece in which a defending piece cannot move without exposing a more valuable defending piece on its other side to capture by the attacking piece. Moving the attacking piece to bring on the pin is called pinning; the defending piece so restricted is described as pinned. Only pieces that can move an indefinite number of squares in a horizontal, vertical, or diagonal line (i.e. bishops, rooks, and queens) can pin. Kings, knights, and pawns cannot pin. Any piece can be pinned except the king, since the
Chess piece Federation's "Official Rules of Chess", which is based on the Fédération Internationale des Échecs rules . The grandmaster Larry Evans offered this advice on buying a set :Make sure the one you buy is easy on the eye, felt-based, and heavy (weighted). The men should be constructed so they don't come apart. ... The regulation board used by the U. S. Chess Federation is green and buff—never red and black. However, there are several good inlaid wood boards on the market. ... Avoid cheap equipment. Chess offers a lifetime of enjoyment for just a few dollars well spent at the