Trading a rook (5) for a bishop or knight (3) is called…
Losing "the exchange" — usually a real concession
Rook for minor piece = "the exchange," worth about 2 points. Sometimes a fine sacrifice — but know the price you're paying.
This lesson is one of 92 in the Grandmaster Academy — every one playable, with the pieces moving under your hand.
♔ Practise this lesson free