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
When a white horse is not a horse way. Similarly with other terms, so that such words as 'horse' and 'white', being used to designate both the concrete particular and the abstract universal, thus hold two values. However, there are no contemporary histories of Chinese philosophy that subscribe to Feng Youlan's interpretation. Other philosophers and sinologists who have analyzed the dialogue include Graham, Hansen, Harbsmeier, Thompson, and Van Norden. In the Chinese philosophical tradition, the "Baima Lun"'s significance is evident from how many Chinese classic texts directly or indirectly discuss it. The "Liezi", which lists and criticizes the paradoxes of Gongsun Long as "perversions of reason and sense",