Nimzo Larsen Attack Indian Variation Trapped Piece in Chess

In the Nimzo-Larsen Attack (Indian Variation), a “trapped piece” motif occurs when a normally active piece—often the dark-squared bishop or a knight—gets limited by the pawn structure and move order. A defining feature is the early pressure and piece placement that can force the opponent’s piece into a narrow set of squares, making escape difficult. The idea is tactical: the side to move can exploit the lack of flight squares before the trapped piece can be freed.