Grivas on Trapping a Piece (opens in new tab)

A trapped piece is a piece that has no escape squares or squares where it can safely move without being captured. A trapped piece can be a bishop or a knight, but also ‘heavier’ pieces such as a rook or a queen can be ensnared. Even the king can be put into a position where it no way to move around. In the first part of his article GM Efstratios Grivas deals with a trapped king and trapped queens.