Nimzo Indian Defense Trapped Piece in Chess

In the Nimzo-Indian Defense, a “nimzo indian defense trapped piece” is a tactical/positional situation where a piece—most often the c3-knight or the dark-squared bishop—gets boxed in by pawn structure and move-order constraints. A defining feature is the early ...Bb4 pin (often after 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4) followed by pawn breaks that can leave the trapped unit with no safe squares. Intermediate players should think of it as a motif where the opponent’s development is “stuck” because the usual retreat squares are controlled or blocked.