Nimzowitsch Defense Other Variations Trapped Piece in Chess

In the Nimzowitsch Defense Other Variations, the “trapped piece” motif appears when Black’s setup (often with ...c5 and ...d5 ideas) restricts an opponent’s piece so it has no safe squares. A defining feature is that White’s active piece (commonly a knight or bishop) is lured to an advanced square where Black can attack it with tempo while controlling escape routes.