Nimzo Larsen Attack Trapped Piece in Chess

In the Nimzo-Larsen Attack, a “trapped piece” motif occurs when Black’s setup (often with ...c5 and ...d5 structures) leaves a piece—commonly the knight on c6 or the bishop on e7—short of safe squares. A defining feature is that White’s early pressure and piece placement can restrict escape routes, so the trapped piece becomes a tactical target. The idea is not just winning material immediately, but forcing the defender to spend tempi to free the piece or accept a lasting disadvantage.