Nimzo-Indian Trapped Piece Chess Puzzles

The Nimzo-Indian Trapped Piece is a tactical motif in the Nimzo-Indian Defense where Black’s bishop, most often the bishop on c8 or the bishop pair setup, can become trapped after an early ...Bb4 and White’s central and queenside pawn moves. The defining feature is that a bishop is developed aggressively but then loses its retreat squares because of pawns on c3, a3, or b4, or because the knight and queen coordinate to cut it off.