Figure[Black to move]

Almost the same. This time it is Black's turn to move, so first look for any loose White pieces and find the rook at a2. Now ask whether Black’s queen can attack it and give check at the same time. No, not yet; but if the queen moved to d5 it would be aimed at both king and rook. Only the White pawn at g2 prevents this from being a successful fork. So ask whether that pawn can be drawn out of the way by capturing something it protects. It protects the knight at h3, which Black can take with his rook. So 1. . . . RxN; 2. g2xR, Qd5+ wins a piece.